rna High-density lipoprotein-associated miRNA is increased following Roux-en-Y gastric bypass surgery for severe obesity [Research Articles] By www.jlr.org Published On :: 2020-10-22T06:30:32-07:00 Roux-en-Y gastric bypass (RYGB) is one of the most commonly performed weight-loss procedures, but how severe obesity and RYGB affects circulating HDL-associated microRNAs (miRNAs) remains unclear. Here, we aim to investigate how HDL-associated miRNAs are regulated in severe obesity and how weight loss after RYGB surgery affects HDL-miRNAs. Plasma HDL were isolated from patients with severe obesity (n=53) before, 6 and 12 months after RYGB by immunoprecipitation using goat anti-human apoA-I microbeads. HDL were also isolated from 18 healthy participants. miRNAs were extracted from isolated HDL and levels of miR-24, miR-126, miR-222 and miR-223 were determined by TaqMan miRNA assays. We found that HDL-associated miR-126, miR-222 and miR-223 levels, but not miR-24 levels, were significantly higher in patients with severe obesity when compared with healthy controls. There were significant increases in HDL-associated miR-24, miR-222 and miR-223 at 12 months after RYGB. Additionally, cholesterol efflux capacity and paraoxonase (PON1) activity were increased and intracellular adhesion molecule-1 (ICAM-1) levels decreased. The increases in HDL-associated miR-24 and miR-223 were positively correlated with increase in cholesterol efflux capacity (r=0.326, P=0.027 and r=0.349, P=0.017 respectively). An inverse correlation was observed between HDL-associated miR-223 and ICAM-1 at baseline. Together, these findings show that HDL-associated miRNAs are differentially regulated in healthy versus patients with severe obesity and are altered after RYGB. These findings provide insights into how miRNAs are regulated in obesity before and after weight reduction, and may lead to the development of novel treatment strategies for obesity and related metabolic disorders. Full Article
rna LDL apheresis as an alternate method for plasma LPS purification in healthy volunteers and dyslipidemic and septic patients [Research Articles] By www.jlr.org Published On :: 2020-12-01T00:05:39-08:00 Lipopolysaccharide (LPS) is a key player for innate immunity activation. It is therefore a prime target for sepsis treatment, as antibiotics are not sufficient to improve outcome during septic shock. An extracorporeal removal method by polymyxin (PMX) B direct hemoperfusion (PMX-DHP) is used in Japan, but recent trials failed to show a significant lowering of circulating LPS levels after PMX-DHP therapy. PMX-DHP has a direct effect on LPS molecules. However, LPS is not present in a free form in the circulation, as it is mainly carried by lipoproteins, including LDLs. Lipoproteins are critical for physiological LPS clearance, as LPSs are carried by LDLs to the liver for elimination. We hypothesized that LDL apheresis could be an alternate method for LPS removal. First, we demonstrated in vitro that LDL apheresis microbeads are almost as efficient as PMX beads to reduce LPS concentration in LPS-spiked human plasma, whereas it is not active in PBS. We found that PMX was also adsorbing lipoproteins, although less specifically. Then, we found that endogenous LPS of patients treated by LDL apheresis for familial hypercholesterolemia is also removed during their LDL apheresis sessions, with both electrostatic-based devices and filtration devices. Finally, LPS circulating in the plasma of septic shock and severe sepsis patients with gram-negative bacteremia was also removed in vitro by LDL adsorption. Overall, these results underline the importance of lipoproteins for LPS clearance, making them a prime target to study and treat endotoxemia-related conditions. Full Article
rna Hsa-miRNA-23a-3p promotes atherogenesis in a novel mouse model of atherosclerosis [Research Articles] By www.jlr.org Published On :: 2020-12-01T00:05:39-08:00 Of the known regulators of atherosclerosis, miRNAs have been demonstrated to play critical roles in lipoprotein homeostasis and plaque formation. Here, we generated a novel animal model of atherosclerosis by knocking in LDLRW483X in C57BL/6 mice, as the W483X mutation in LDLR is considered the most common newly identified pathogenic mutation in Chinese familial hypercholesterolemia (FH) individuals. Using the new in vivo mouse model combined with a well-established atherosclerotic in vitro human cell model, we identified a novel atherosclerosis-related miRNA, miR-23a-3p, by microarray analysis of mouse aortic tissue specimens and human aortic endothelial cells (HAECs). miR-23a-3p was consistently downregulated in both models, which was confirmed by qPCR. Bioinformatics analysis and further validation experiments revealed that the TNFα-induced protein 3 (TNFAIP3) gene was the key target of miR-23a-3p. The miR-23a-3p-related functional pathways were then analyzed in HAECs. Collectively, the present results suggest that miR-23a-3p regulates inflammatory and apoptotic pathways in atherogenesis by targeting TNFAIP3 through the NF-B and p38/MAPK signaling pathways. Full Article
rna An Interaction Network of RNA-Binding Proteins Involved in Drosophila Oogenesis [Research] By www.mcponline.org Published On :: 2020-09-01T00:05:24-07:00 During Drosophila oogenesis, the localization and translational regulation of maternal transcripts relies on RNA-binding proteins (RBPs). Many of these RBPs localize several mRNAs and may have additional direct interaction partners to regulate their functions. Using immunoprecipitation from whole Drosophila ovaries coupled to mass spectrometry, we examined protein-protein associations of 6 GFP-tagged RBPs expressed at physiological levels. Analysis of the interaction network and further validation in human cells allowed us to identify 26 previously unknown associations, besides recovering several well characterized interactions. We identified interactions between RBPs and several splicing factors, providing links between nuclear and cytoplasmic events of mRNA regulation. Additionally, components of the translational and RNA decay machineries were selectively co-purified with some baits, suggesting a mechanism for how RBPs may regulate maternal transcripts. Given the evolutionary conservation of the studied RBPs, the interaction network presented here provides the foundation for future functional and structural studies of mRNA localization across metazoans. Full Article
rna Quantitative Proteomics Links the LRRC59 Interactome to mRNA Translation on the ER Membrane [Research] By www.mcponline.org Published On :: 2020-11-01T00:05:37-07:00 Protein synthesis on the endoplasmic reticulum (ER) requires the dynamic coordination of numerous cellular components. Together, resident ER membrane proteins, cytoplasmic translation factors, and both integral membrane and cytosolic RNA-binding proteins operate in concert with membrane-associated ribosomes to facilitate ER-localized translation. Little is known, however, regarding the spatial organization of ER-localized translation. This question is of growing significance as it is now known that ER-bound ribosomes contribute to secretory, integral membrane, and cytosolic protein synthesis alike. To explore this question, we utilized quantitative proximity proteomics to identify neighboring protein networks for the candidate ribosome interactors SEC61β (subunit of the protein translocase), RPN1 (oligosaccharyltransferase subunit), SEC62 (translocation integral membrane protein), and LRRC59 (ribosome binding integral membrane protein). Biotin labeling time course studies of the four BioID reporters revealed distinct labeling patterns that intensified but only modestly diversified as a function of labeling time, suggesting that the ER membrane is organized into discrete protein interaction domains. Whereas SEC61β and RPN1 reporters identified translocon-associated networks, SEC62 and LRRC59 reporters revealed divergent protein interactomes. Notably, the SEC62 interactome is enriched in redox-linked proteins and ER luminal chaperones, with the latter likely representing proximity to an ER luminal chaperone reflux pathway. In contrast, the LRRC59 interactome is highly enriched in SRP pathway components, translation factors, and ER-localized RNA-binding proteins, uncovering a functional link between LRRC59 and mRNA translation regulation. Importantly, analysis of the LRRC59 interactome by native immunoprecipitation identified similar protein and functional enrichments. Moreover, [35S]-methionine incorporation assays revealed that siRNA silencing of LRRC59 expression reduced steady state translation levels on the ER by ca. 50%, and also impacted steady state translation levels in the cytosol compartment. Collectively, these data reveal a functional domain organization for the ER and identify a key role for LRRC59 in the organization and regulation of local translation. Full Article
rna Multiomics Reveals Ectopic ATP Synthase Blockade Induces Cancer Cell Death via a lncRNA-mediated Phospho-signaling Network [Research] By www.mcponline.org Published On :: 2020-11-01T00:05:37-07:00 The EGFR tyrosine kinase inhibitor gefitinib is commonly used for lung cancer patients. However, some patients eventually become resistant to gefitinib and develop progressive disease. Here, we indicate that ecto-ATP synthase, which ectopically translocated from mitochondrial inner membrane to plasma membrane, is considered as a potential therapeutic target for drug-resistant cells. Quantitative multi-omics profiling reveals that ecto-ATP synthase inhibitor mediates CK2-dependent phosphorylation of DNA topoisomerase IIα (topo IIα) at serine 1106 and subsequently increases the expression of long noncoding RNA, GAS5. Additionally, we also determine that downstream of GAS5, p53 pathway, is activated by ecto-ATP synthase inhibitor for regulation of programed cell death. Interestingly, GAS5-proteins interactomic profiling elucidates that GAS5 associates with topo IIα and subsequently enhancing the phosphorylation level of topo IIα. Taken together, our findings suggest that ecto-ATP synthase blockade is an effective therapeutic strategy via regulation of CK2/phospho-topo IIα/GAS5 network in gefitinib-resistant lung cancer cells. Full Article
rna ProAlanase is an Effective Alternative to Trypsin for Proteomics Applications and Disulfide Bond Mapping [Technological Innovation and Resources] By www.mcponline.org Published On :: 2020-12-01T00:05:33-08:00 Trypsin is the protease of choice in bottom-up proteomics. However, its application can be limited by the amino acid composition of target proteins and the pH of the digestion solution. In this study we characterize ProAlanase, a protease from the fungus Aspergillus niger that cleaves primarily on the C-terminal side of proline and alanine residues. ProAlanase achieves high proteolytic activity and specificity when digestion is carried out at acidic pH (1.5) for relatively short (2 h) time periods. To elucidate the potential of ProAlanase in proteomics applications, we conducted a series of investigations comprising comparative multi-enzymatic profiling of a human cell line proteome, histone PTM analysis, ancient bone protein identification, phosphosite mapping and de novo sequencing of a proline-rich protein and disulfide bond mapping in mAb. The results demonstrate that ProAlanase is highly suitable for proteomics analysis of the arginine- and lysine-rich histones, enabling high sequence coverage of multiple histone family members. It also facilitates an efficient digestion of bone collagen thanks to the cleavage at the C terminus of hydroxyproline which is highly prevalent in collagen. This allows to identify complementary proteins in ProAlanase- and trypsin-digested ancient bone samples, as well as to increase sequence coverage of noncollagenous proteins. Moreover, digestion with ProAlanase improves protein sequence coverage and phosphosite localization for the proline-rich protein Notch3 intracellular domain (N3ICD). Furthermore, we achieve a nearly complete coverage of N3ICD protein by de novo sequencing using the combination of ProAlanase and tryptic peptides. Finally, we demonstrate that ProAlanase is efficient in disulfide bond mapping, showing high coverage of disulfide-containing regions in a nonreduced mAb. Full Article
rna Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part One By www.chathamhouse.org Published On :: Mon, 29 Oct 2018 16:37:47 +0000 Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part One Other resource sysadmin 29 October 2018 As part of a roundtable series, Chatham House and China University of Political Science and Law (CUPL) jointly organized this four-day meeting at Chatham House for international lawyers to discuss a wide range of issues related to public international law and the rights of individuals. — The Representative of China at the 19th Session of the Human Rights Council, Palais des Nations, Geneva. 27 February 2012. Photo: UN Photo Geneva/Violaine Martin. The specific objectives were to: create a platform for Chinese international law academics working on international human rights law issues to present their thinking and exchange ideas with counterparts from outside China; build stronger understanding within the wider international law community of intellectual debates taking place in China about the international human rights system and China’s role within it; support networking between Chinese and non-Chinese academics working on international human rights and related areas of international law. The roundtable forms part of a wider Chatham House project exploring China’s impact on the international human rights system and was inspired by early discussions with a burgeoning community of Chinese academics thinking, writing (mainly in Chinese) and teaching about international human rights law. For China University of Political Science and Law, one of the largest and most prestigious law schools in China and perhaps the only university in the world with an entire faculty of international law, the initiative is part of a drive to forge partnerships beyond China in the international law field. The roundtable had a total of 22 participants, 10 Chinese (from universities and other academic institutions in Beijing and Shanghai) and 12 non-Chinese (from Australia, Germany, the Netherlands, Switzerland, the United Kingdom and the United States). All discussions were held in English under the Chatham House Rule. 20140414PublicInternationalLawChina (PDF) Full Article
rna Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part Two By www.chathamhouse.org Published On :: Tue, 30 Oct 2018 08:46:37 +0000 Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part Two Other resource sysadmin 30 October 2018 As part of a roundtable series, Chatham House and China University of Political Science and Law (CUPL) held a two-day roundtable meeting in Beijing on public international law and the rights of individuals. — The Representative of China at the 19th Session of the Human Rights Council, Palais des Nations, Geneva. 27 February 2012. Photo: UN Photo Geneva/Violaine Martin. The specific objectives were to: create a platform for Chinese international law academics working on international human rights law issues to present their thinking and exchange ideas with counterparts from outside China; build stronger understanding within the wider international law community of intellectual debates taking place in China about the international human rights system and China’s role within it; support networking between Chinese and non-Chinese academics working on international human rights and related areas of international law. The roundtable forms part of a wider Chatham House project exploring China’s impact on the international human rights system and was inspired by early discussions with a burgeoning community of Chinese academics thinking, writing (mainly in Chinese) and teaching about international human rights law. For CUPL, one of the largest and most prestigious law schools in China and perhaps the only university in the world with an entire faculty of international law, the initiative is part of a drive to forge partnerships beyond China in the international law field. The meeting in Beijing was hosted by CUPL and involved 20 participants, 10 Chinese (from universities and other academic institutions in Beijing) and 10 non-Chinese (from Australia, the Netherlands, South Africa, Switzerland, the United Kingdom and the United States). To ensure continuity while also expanding the experts network being built, the second meeting included a mix of participants from the first meeting and some new participants. All discussions were held in English under the Chatham House Rule. 23711Roundtable2-summary (PDF) Full Article
rna Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part Three By www.chathamhouse.org Published On :: Tue, 30 Oct 2018 08:55:48 +0000 Exploring Public International Law and the Rights of Individuals with Chinese Scholars - Part Three Other resource sysadmin 30 October 2018 As part of a roundtable series, Chatham House, China University of Political Science and Law (CUPL) and the Graduate Institute Geneva held a two-day roundtable meeting in Geneva on public international law and the rights of individuals. — The Representative of China at the 19th Session of the Human Rights Council, Palais des Nations, Geneva. 27 February 2012. Photo: UN Photo Geneva/Violaine Martin. The specific objectives were to: create a platform for Chinese international law academics working on international human rights law issues to present their thinking and exchange ideas with counterparts from outside China; build stronger understanding within the wider international law community of intellectual debates taking place in China about the international human rights system and China’s role within it; support networking between Chinese and non-Chinese academics working on international human rights and related areas of international law. The roundtable forms part of a wider Chatham House project exploring China’s impact on the international human rights system and was inspired by early discussions with a burgeoning community of Chinese academics thinking, writing (mainly in Chinese) and teaching about international human rights law. For CUPL, one of the largest and most prestigious law schools in China and perhaps the only university in the world with an entire faculty of international law, the initiative is part of a drive to forge partnerships beyond China in the international law field. The meeting in Geneva was co-hosted by the Graduate Institute Geneva and involved 19 participants, 9 Chinese (from six research institutions in Beijing and Shanghai) and 11 non-Chinese (from eight research institutions in Australia, Germany, the Netherlands, Switzerland, the United Kingdom and the United States). To ensure continuity while also expanding the expert network being built, the third meeting included a mix of participants from the first two meetings and some new participants All discussions were held in English under the Chatham House Rule. 2016-03-05-Roundtable3-summary (PDF) Full Article
rna Exploring Public International Law Issues with Chinese Scholars – Part Four By www.chathamhouse.org Published On :: Tue, 30 Oct 2018 09:01:59 +0000 Exploring Public International Law Issues with Chinese Scholars – Part Four Other resource sysadmin 30 October 2018 As part of a roundtable series, Chatham House and the China University of Political Science and Law (CUPL) held a two-day roundtable in Beijing on emerging issues of public international law. — The Representative of China at the 19th Session of the Human Rights Council, Palais des Nations, Geneva. 27 February 2012. Photo: UN Photo Geneva/Violaine Martin. The specific objectives were to: create a platform for Chinese international law academics working on international human rights law issues to present their thinking and exchange ideas with counterparts from outside China; build stronger understanding within the wider international law community of intellectual debates taking place in China about the international human rights system and China’s role within it; support networking between Chinese and non-Chinese academics working on international human rights and related areas of international law. The roundtable forms part of a wider Chatham House project exploring China’s impact on the international human rights system and was inspired by early discussions with a burgeoning community of Chinese academics thinking, writing (mainly in Chinese) and teaching about international human rights law. For CUPL, one of the largest and most prestigious law schools in China and perhaps the only university in the world with an entire faculty of international law, the initiative is part of a drive to forge partnerships beyond China in the international law field. The meeting was co-hosted with CUPL and involved 28 participants, consisting of 19 Chinese participants (from six leading research institutions in Beijing and Shanghai) and nine nonChinese participants (from eight leading research institutions in Australia, the Netherlands, the UK, Switzerland, Canada and Singapore). To ensure continuity while also expanding the expert network being built, the fifth meeting included a mix of participants from the previous meetings and some new participants. All discussions were held in English under the Chatham House Rule. 2018-06-02-Roundtable4-summary (PDF) Full Article
rna New Frontiers in Gender-responsive Governance: Five Years of the W20 By www.chathamhouse.org Published On :: Fri, 02 Nov 2018 11:41:53 +0000 New Frontiers in Gender-responsive Governance: Five Years of the W20 Research paper sysadmin 2 November 2018 After five years of the W20, women and gender equality remain at the margin of the G20. There is a real risk of the W20 representing a one-off territorial gain at a frontier that could easily be pushed back again. — A woman holds a female symbol model as workers take part in a rally to mark May Day, International Workers’ Day, in Istanbul, Turkey on 1 May 2016. Photo: Berk Ozkan/Anadolu Agency/Getty Images. Summary 2018 marks the fifth anniversary of the first grouping of the W20, the engagement group of the G20 that focuses on gender-inclusive economic growth and advocates for gender equality across the G20 agenda. Formally launched under the Turkish G20 presidency in 2015, the W20 is made up of women from business, international organizations, civil society, think-tanks and academia across the G20 member states. This paper takes stock of the critical steps in the development of the W20 over the last five years, examining its background, rationale and foundations, and identifying the areas of economic governance where it has so far contributed the most – and those where more action is needed. The W20 has filled a gap, it but needs to carefully assess its coherence with the UN agencies, the private sector, the G7 and other G20 engagement groups. The establishment of the W20 has contributed to defining new frontiers for economic governance and shifting the traditional approach from gender-neutral to gender-responsive. Whereas in 2013 gender in the G20 was considered a marginal issue better dealt with by ministers for equal opportunities, now gender equality and women’s economic empowerment are part of the mainstream economic dialogue. The next step is to ensure more structural and monitored policy reforms at the G20 level. Already, the W20 can count among its achievements the ‘25 by 25’ female labour force participation commitment adopted at the G20’s Brisbane summit in 2014, and the Women Entrepreneurs Finance Initiative (We-Fi) and Business Women Leaders’ Taskforce, both agreed at the Hamburg summit in 2017. The W20 is constrained in its policy impact by limited engagement with the finance track and a lack of consistent resourcing levels. Addressing these issues would strengthen its role as a credible player in shifting global economic governance while contributing to good gender-responsive domestic policies. Progress on gender equality has been too slow and too peripheral to drive change in the relatively short term – over one generation, for example. G20 governments must therefore embrace active, credible policies to bring more women into the labour market, improve access to education and finance, close the pay gap, invest in social infrastructure – especially childcare and assistance for the elderly – and support female entrepreneurs. These domestic policies need to be internationally coordinated so that action and benefits can be widespread. A feminist, inclusive agenda at the G20 level should highlight the current empirical evidence of women’s exclusion from the benefit of their economic activity, both in G20 members and beyond. The W20 should also focus on efforts to remedy the lack of women’s representation in G20 processes and in economic governance as a whole. 2018-11-06-gender-responsive-governance-five-years-w20-subacchi-rimmer (PDF) Full Article
rna The Role of Sub-state and Non-state Actors in International Climate Processes: Civil Society By www.chathamhouse.org Published On :: Tue, 27 Nov 2018 09:59:58 +0000 The Role of Sub-state and Non-state Actors in International Climate Processes: Civil Society Research paper sysadmin 27 November 2018 Given today’s challenging geopolitical conditions and the evolving nature of the international climate regime since Paris, civil society must now once again recalibrate its strategies to ensure continued and increasing relevance. — Photo by The Climate Reality Project, ‘People’s Climate March Protest’, via Unsplash, 2017. This is one of four background papers feeding into a synthesis paper entitled The Role of Sub-state and Non-state Actors in International Climate Processes. Summary Following the failure of the 15th Conference of the Parties (COP 15) in Copenhagen in 2009, there was a step change in the sophistication and unity of civil society engagement on climate policy. This ensured that, subsequently, civil society was more effective in exercising multiple channels of influence around the negotiations for the Paris Agreement in 2015. Civil society proved to be particularly effective at harnessing the twin narratives of climate science and economics, and at leveraging an emerging multi-level governance architecture, to create political space for climate leadership. Given today’s challenging geopolitical conditions and the evolving nature of the international climate regime since Paris, civil society must now once again recalibrate its strategies to ensure continued and increasing relevance. In particular, the shift to a more ‘nationally grounded’ implementation regime focusing on individual states’ climate commitments will require civil society to become more effective at influencing domestic politics. At the same time, civil society will need to continue to seek strategic synergies at the international level. Civil society has a central role to play in ensuring that the first key test of the Paris ‘ratchet’ mechanism – revising countries’ pledged climate actions, or Nationally Determined Contributions (NDCs), by 2020 – is robust, science-informed and strongly rooted in domestic politics. 2018-11-28-non-state-actors-climate-civil-society-guy (PDF) Full Article
rna The Role of Sub-state and Non-state Actors in International Climate Processes: Corporate Sector By www.chathamhouse.org Published On :: Tue, 27 Nov 2018 10:09:06 +0000 The Role of Sub-state and Non-state Actors in International Climate Processes: Corporate Sector Research paper sysadmin 27 November 2018 Given the challenging political contexts since 2015, the corporate sector will have a key role to play in persuading national governments how technologies and expertise have moved on since the pledges were made. — Photo by Priscilla Du Preez, ‘Climate Reality’ via Unsplash, 2017. This is one of four background papers feeding into a synthesis paper entitled The Role of Sub-state and Non-state Actors in International Climate Processes. Summary The corporate sector has traditionally engaged governments at national rather than international level in lobbying for action related to climate change. Where it has engaged at an international level, this has often been to restrain regulation and ambition, such as in air transport. Over time, many businesses have increasingly understood that there is more commercial opportunity in a strong, consistent approach to tackling climate mitigation and adaptation, and an increasing number are willing to speak up on the issue. The Paris Climate Conference in 2015 demonstrated this positive engagement. Businesses are more powerful when engaging directly with national governments on detailed policies – by demonstrating what is possible and indirectly influencing national governments’ international pledges. Traditional trade/industry sector associations and groups have tended to suffer from the ‘lowest common denominator’ effect of their least progressive members. Progressive business groups coalescing around climate ambition can help to counter this. Unlike at the Copenhagen climate talks in 2009, the business community provided a positive, supportive backdrop to the 2015 Paris talks, mindful of the public relations opportunities in taking a progressive stance and of the benefits of targets that reflected the science. The carbon market was a particular focus for corporates, which succeeded in getting emissions trading options and market mechanisms included in Article 6 of the Paris Agreement. Given the challenging political contexts since 2015, the corporate sector will have a key role to play in persuading national governments how technologies and expertise have moved on since the pledges were made. With increasing awareness of resource scarcity, businesses are pursuing ever more creative solutions. Wide recognition that the avoidance of future emissions is increasingly dependent on developing and emerging economies means that business voices from these countries will potentially be more influential in the next few years. 2018-11-28-non-state-actors-climate-corporate-duggan (PDF) Full Article
rna The Role of Sub-state and Non-state Actors in International Climate Processes By www.chathamhouse.org Published On :: Tue, 27 Nov 2018 10:18:41 +0000 The Role of Sub-state and Non-state Actors in International Climate Processes Research paper sysadmin 27 November 2018 In the current international political environment of rising populism, the role of sub- and non-state actors may become more important than ever. — Photo by UNclimatechange, ‘Bonn Climate Change Conference - October 2014’ via Flickr, 2014. Summary Climate action from sub-state and non-state actors such as subnational governments, cities, corporations and NGOs has very significant potential to enhance national efforts to curb CO2 emissions, close the so-called ‘emissions gap’ – between current commitments and the action necessary to meet climate targets – and help move the world on to a ‘1.5°C pathway’ that would limit global warming to 1.5°C above pre-industrial levels by 2100. In addition to their own climate action, sub-state/non-state actors can contribute to climate governance by developing new policies and business models to support emissions cuts and build resilience. Knowledge exchange and capacity-building have a role to play in helping these innovations to spread internationally. Politically, measures implemented by sub-state/non-state actors can help national governments to implement existing targets faster and more effectively, while helping to build political support for more ambitious climate action. The post-Paris climate regime of the United Nations Framework Convention on Climate Change (UNFCCC) reflects the growing importance of sub- and non-state actors, and has featured the creation of institutional structures to engage and coordinate them. In the current international political environment of rising populism, the role of sub- and non-state actors may become more important than ever. However, more questions about the robustness of sub- and non-state action are also likely to be raised. With the 2020 deadline approaching for countries to submit details of enhanced Nationally Determined Contributions (NDCs), long-term climate strategies and other means of raising policy ambition, the next two years are set to provide significant opportunity for sub- and non-state action. Many governments are already developing ways to engage with sub- and non-state actors to identify opportunities to strengthen action by 2020. Key questions in this respect include (a) whether sub- and non-state actors can mobilize across sectors; and (b) whether action can be extended beyond the ‘usual suspects’ to include contributions from less familiar sources, such as business sectors with limited opportunities for climate action or corporations in the Global South. 2018-11-28-non-state-sctors-climate-synthesis-hale-final (PDF) Full Article
rna The Role of Sub-state and Non-state Actors in International Climate Processes: Financial Institutions By www.chathamhouse.org Published On :: Thu, 20 Dec 2018 10:15:53 +0000 The Role of Sub-state and Non-state Actors in International Climate Processes: Financial Institutions Research paper sysadmin 20 December 2018 The trillions of dollars needed to secure the sustainable, climate-compatible pathway outlined in the 2015 Paris Agreement have focused attention on private finance and investment. — Photo by João Barbosa, ‘The need to keep growing’, 2018. This is one of four background papers feeding into a synthesis paper entitled The Role of Sub-state and Non-state Actors in International Climate Processes. Summary The trillions of dollars needed to secure the sustainable, climate-compatible pathway outlined in the 2015 Paris Agreement have focused attention on private finance and investment, and on the role of the financial sector as a potentially powerful non-state actor in the international climate debate. Leading individual financial institutions reacted to the Paris Agreement by framing it in terms of what it would mean for markets – i.e. risks and opportunities – and by underlining the importance of national implementation of climate change commitments. Key recent developments signal that the financial sector actively supports Paris-compatible government action on climate change, as well as company-level action to understand the physical and ‘transition’ risks and opportunities associated with climate change and policy responses. Financial sector engagement is taking place through well-organized and well-supported international initiatives and platforms. A critical part of this process entails robust activity by financial institutions to embed climate change and broader sustainability factors into strategies and operations. At country level, attention to implementation of Nationally Determined Contributions (NDCs) and associated sector-level policy development has been largely separate from the broader ‘sustainable finance’ dynamic. National-level action has not benefited from the same level of organized financial sector involvement evident in international action. One of the reasons for this is that, with some notable exceptions, international financial initiatives lack the capacity and resources to participate in the granular detail of national policy processes. Policymakers in turn often lack the internal capacity to consult or engage with the financial sector domestically. This paper includes some thoughts on further international and national climate actions. Ensuring that messages from successful international financial sector initiatives are heard in regional and non-climate forums offers one avenue for building a stronger foundation for greater climate ambition. Building the resource base for stronger national climate policy engagement, as a counter-voice to incumbent interests and to ensure that the quality of policy is ‘investment grade’, is another. This will be critical to the delivery of policy outcomes. Other key elements include the need to pool knowledge across relevant parts of the finance sector, build alliances, and shift action towards joint problem-solving with policymakers. A ‘Talanoa 2.020’-type initiative offers one potentially promising approach to advancing dialogue in this respect. 2018-12-21-non-state-actors-climate-financial-institutions-hamilton (PDF) Full Article
rna The Role of Sub-state and Non-state Actors in International Climate Processes: Subnational Governments By www.chathamhouse.org Published On :: Wed, 23 Jan 2019 09:34:56 +0000 The Role of Sub-state and Non-state Actors in International Climate Processes: Subnational Governments Research paper sysadmin 23 January 2019 This paper looks at the role of subnational governments in influencing global climate ambition, and makes recommendations for how these actors can increase their influence in the future. — Photo by Annie Spratt, ‘High in the SuperTrees’ via Unsplash, 2017 Summary ‘Subnational governments’ – including municipal, regional and provincial authorities – lack the formal status of negotiating parties to the United Nations Framework Convention on Climate Change (UNFCCC). But they have a vital role to play in informing and helping to shape international climate action, as they are often the key delivery partners for on-the-ground policies. Subnational governments are often closer to climate problems than the UNFCCC parties themselves, and have experience, expertise and peer influence that can support the development of progressive policies and increased ambition. Many subnational governments have joined or formed various groupings to share information and experience, and to increase their collective profile and voice. Notable initiatives and collaborations include the Under2 Coalition, ICLEI, C40 and the Global Covenant of Mayors for Climate & Energy. Subnational governments are highly diverse. In some cases, politically high-profile administrations – the US state of California being a notable example – have exploited their visibility and policy successes to engage in wider climate debates. Equally, however, subnational agendas can encounter resistance from national governments anxious to ensure the primacy of their negotiating positions in the UNFCCC system. One of the advantages that subnational governments enjoy, subject to resources, is their ability to join with peer groups to take a fresh approach to mitigation or adaptation policies. Groups of cities or subnational regions can, through collaborative organizations, explore new approaches that might be less attractive within a national context. To maintain and build on their current achievements and influence, subnational governments need, among other things, to: improve the credibility of their experience through evaluation of the success of their climate policies; use membership of appropriate international groups to share experience and boost their leverage; continue to create collaborative relationships with progressive businesses to increase influence at a national level; build on cross-regional relationships in climate adaptation and resilience; and work with other subnational actors to build momentum ahead of the first post-Paris revision of climate commitments in 2020. 2019-01-23-Duggan (PDF) Full Article
rna Delivering Sustainable Food and Land Use Systems: The Role of International Trade By www.chathamhouse.org Published On :: Fri, 20 Sep 2019 09:03:21 +0000 Delivering Sustainable Food and Land Use Systems: The Role of International Trade Research paper sysadmin 20 September 2019 This paper explores a set of core trade-related issues affecting the food and land use system, and proposes constructive ways forward in reconfiguring the global trading system towards delivering a more sustainable and healthy diet for all. — Aerial view of containers sitting stacked at Qingdao Port in the Shandong province of China. Photo by Han Jiajun/Visual China Group via Getty Images. Meeting future global food security requirements is not just about quantity; it is also about meeting growing needs in a way that safeguards human as well as planetary health. But national priorities and policies often remain out of sync with aspirations for more sustainable and healthy food systems. International trade and trade policies play an ambiguous role in the current food system. With 80 per cent of the world’s population depending on imports to meet at least part of their food and nutritional requirements, trade has a unique function in offsetting imbalances between supply and demand. However, in the absence of effective regulatory frameworks or pricing frameworks that internalize environmental, social or health costs, trade can exacerbate and globalize challenges associated with food production and land use trends such as deforestation, land degradation, greenhouse gas emissions, biodiversity loss and the shift to unhealthy diets. Over the last two decades, trade in agricultural products (excluding intra-EU flows) has more than tripled in value, to reach $1.33 trillion. The geography of global food trade flows has also shifted, primarily towards South–South trade, which now accounts for roughly a quarter of total agricultural trade flows. The nature of global trade has changed drastically, with traditional exports such as wheat and coffee growing slowly at around 2 per cent per year, while products such as palm oil, fruit juice, soft drinks and other processed products have grown at 8 per cent or more annually. This overall increase in trade in agricultural products raises questions about the growing utilization of resources, such as water or soil nutrients, that are embedded in those products through production and processing. Trade itself also causes negative environmental impacts, starting with greenhouse gas emissions associated with transport and storage. If the environmental cost associated with production and trade is not reflected in the final price of goods, trade may accelerate the depletion of resources or their unsustainable use. It is critical to ensure that trade policy options pursued by producing and consuming countries alike will support a transition to more sustainable and healthier food and land use systems. The first step in addressing trade-related food systems challenges must involve rebuilding trust among policy actors. There is a need for new spaces for informal dialogue among actors, and ‘soft’ governance mechanisms that can help rebuild consensus on the best ways forward. Meeting these challenges also requires an appreciation of the complex interactions between sectoral policies (e.g. on water, land, food, etc.) and their multiple interfaces with trade policies. Conditioning the use of subsidies on their sustainability and/or health impacts encourages the delivery of essential public goods in ways that are consistent with sustainability and health goals. A first step therefore is the removal of perverse incentives (e.g. subsidies encouraging the overuse of fertilizers or pesticides or the overproduction of certain commodities, as well as certain biofuels subsidies) and replacing them with market-correcting subsidies. Trade facilitation measures for fruits and vegetables that are aimed at easing transit at the border, by cutting unnecessary bureaucracy and reducing waiting times, can improve their availability, reduce costs and improve food quality and safety for consumers. Similarly, measures aimed at improving sustainable cold storage and upgrading value chains can support better diets and consumption by increasing the availability of fresh produce on markets, especially in developing countries. A global food stamps programme developed through the G20 and facilitated by the UN’s food agencies could address purchasing power imbalances and tackle malnutrition in developing countries. If carefully designed, such ‘safety net’ schemes can not only contribute to improving calorific intakes but also help deliver more balanced and healthier diets. Careful attention must be given to how such a scheme would work in practice, building on experience to date with similar initiatives. Integrating the notion of sustainable food and inputs trade in the post-2020 global biodiversity framework can help to deliver more sustainable and healthier food and land use systems. This could be achieved by likeminded countries introducing a set of goals or targets aimed at mitigating the role of trade in placing indirect pressure on biodiversity, and to encourage trade in biodiversity-based products including natural ingredients produced ethically and following sustainability principles and criteria. An SDG-oriented agenda for agricultural trade is needed. It could be formed by countries seeking to remove perverse incentives, guaranteeing a safe harbour for market-correcting measures, clarifying existing rules and establishing plurilateral negotiations among subsets of the WTO membership, or sectoral approaches, to address specific challenges. Greenhouse gas emissions resulting from trade need to be addressed. Governments could seek to achieve this through ensuring the carbon neutrality of existing and new trade deals, either by connecting carbon markets among contracting parties or by developing joint initiatives to tax international maritime and air transport emissions. 2019-10-14-HoffmanCentreTradeandFoodSystems (PDF) Full Article
rna Centenary Series: Exploring the International Affairs Archive By www.chathamhouse.org Published On :: Mon, 14 Sep 2020 09:18:37 +0000 Centenary Series: Exploring the International Affairs Archive dora.popova 14 September 2020 International Affairs has been a central part of the institute’s history, both as a record of speeches made by dignitaries such as Mahatma Gandhi and Henry Kissinger, and as a forum for policy-relevant academic research. Delving into the International Affairs archive brings out stories behind some of the most significant players of the last century. Full Article
rna Gender, think-tanks and international affairs: A toolkit By www.chathamhouse.org Published On :: Tue, 09 Feb 2021 15:02:41 +0000 Gender, think-tanks and international affairs: A toolkit Other resource NCapeling 9 February 2021 Encouraging a more gender-sensitive approach for think-tank activities such as convening and debate, research and analysis, and communications and publishing. Compiled by staff at Chatham House, the Centre for Feminist Foreign Policy and the British American Security Information Council, the toolkit provides think-tanks with guidance on ways of adapting organizational structures, activities and practices in order to embed greater awareness of gender issues and adopt gender-sensitive approaches throughout their work. The toolkit is designed for all people working in international affairs think-tanks, regardless of role, experience or level of seniority. It will be particularly useful for those think-tanks that are just beginning the process of raising greater awareness of gender issues internally, as well as for those that have already begun to make changes but wish to expand this work further. The work to develop the toolkit came as a response to the commonly gendered nature of think-tanks and their activities. The toolkit recognizes the discrimination and under-representation that women often experience within the sector, as well as the relative absence of women among executive leadership, governance structures and senior researcher positions in many think-tanks. The toolkit’s focus on gender is a starting point for wider intersectional analysis and action within the think-tank community. Embedding inclusive research, convening and communication practices is not just ‘the right thing to do’. When diversity and inclusion initiatives succeed, organizations are more resilient, innovative and better at decision-making. While there has already been incremental change within think-tanks, the toolkit’s authors intend that their work will build on the important body of research and practices that already exist by encouraging think-tanks to examine their own processes and develop ways of working that focus not just on women’s representation, but on the structures and systems that perpetuate biases and inequalities. Gender, think-tanks and international affairs: a toolkit (PDF) Full Article
rna The Justice Laboratory: International Law in Africa By www.chathamhouse.org Published On :: Wed, 30 Mar 2022 13:44:10 +0000 The Justice Laboratory: International Law in Africa Book dora.popova 30 March 2022 The Justice Laboratory is the first major study of the institutions created to enforce international criminal justice standards in Sub-Saharan Africa, including the UN tribunal for the Rwandan genocide. Since the Second World War, the United Nations and other international actors have created laws, treaties, and institutions to punish perpetrators of genocide, war crimes, and crimes against humanity. But international criminal justice now seems to be a declining force — its energy sapped by long delays in prosecutions, lagging public attention, and a globally rising authoritarianism that disregards legal niceties. The Justice Laboratory reviews five examples of international criminal justice as they have been applied across Africa, where brutal civil conflicts in recent decades resulted in varying degrees of global attention and action. Written in an accessible style, the book explores the connections between politics and the doctrine of international criminal law. Highlighting little-known institutional examples and under-discussed political situations, the book contributes to a broader international understanding of African politics and international criminal justice, and the lessons African experiences can offer to other countries. This book is part of the Insights series. Praise for The Justice Laboratory Integrating legal and political analysis, Kerstin Bree Carlson provides a highly accessible and provocative examination of the promises and pitfalls of seeking accountability in a range of contemporary international criminal justice interventions in Africa. Victor Peskin, School of Politics and Global Studies, Arizona State University About the author Kerstin Bree Carlson is associate professor of international law at the Department of Social Science and Business, Roskilde University, where she teaches topics in law and society, global studies, international politics, and Nordic migration. Purchase UK (via Amazon) Rest of world (via Brookings Institution Press) Students (via Browns Books) Full Article
rna 100 years of International Affairs By www.chathamhouse.org Published On :: Wed, 01 Mar 2023 08:00:00 +0000 100 years of International Affairs Other resource dora.popova 1 March 2023 Charting a century of key moments in international relations and International Affairs. International Affairs was created to be a record of speeches given by visiting dignitaries at Chatham House. Over the last 100 years, the journal has evolved into an independent academic journal publishing work of the highest quality. On the fringes of the Paris peace conference Lionel Curtis called for an organization whose purpose would be to foster mutual understanding of and between nations. Chatham House was established in 1920 and for much of the time since, International Affairs has been a central part of the institute’s publishing output. As such, for most of its history, contributions to the journal have reflected the prevailing attitudes of the time, both in terms of who was published and the content of their work. Perhaps the most important change over the last century has been the increasing diversity of voices and perspectives published in IA’s pages. Today, as the journal enters its second century, it publishes authors from across the globe. Yet the editorial team is all too aware there is still much to do. Keep reading to explore the journal’s history and to find out more about our second century. The drawings in this timeline were commissioned by the International Affairs team from Sequential Potential Comics. Full Article
rna Hernandez healthy, ready to run atop lineup By mlb.mlb.com Published On :: Mon, 18 Feb 2019 14:01:44 EDT Cesar Hernandez scored 91 runs last season, the Phillies' highest mark since Rollins scored 102 in 2012. Now the luster is no longer there for players who score 100 runs or post 100 RBIs, but Hernandez should score at least 100 runs this season, if he stays healthy and if the Phillies' offense improves as expected. Full Article
rna Marburg virus: First cases in Rwanda spark international alarm By www.bmj.com Published On :: Wednesday, October 2, 2024 - 12:40 Full Article
rna Political Opposition and Policy Alternatives in Zambia By www.chathamhouse.org Published On :: Thu, 19 Oct 2017 13:30:00 +0000 Political Opposition and Policy Alternatives in Zambia 31 October 2017 — 10:30AM TO 11:30AM Anonymous (not verified) 19 October 2017 Chatham House, London In Zambia’s 2016 national election, the Patriotic Front (PF) was re-elected by a narrow margin. The PF’s Edgar Lungu secured 50.35 per cent of the vote according to the Electoral Commission of Zambia, narrowly avoiding a second round, while his main rival, Hakainde Hichilema, won 47.67 per cent. The UPND, led by Mr Hichilema, alleges electoral fraud and has challenged the result in the courts and through direct protests. Mr Hichilema was imprisoned for 100 days.At this meeting, Hakainde Hichilema will discuss his UPND priorities, how to strengthen opposition parties and their role in Zambia’s democratic future. Read transcript Full Article
rna South Africa After the Elections: Balancing Domestic and International Policy Priorities By www.chathamhouse.org Published On :: Thu, 09 May 2019 14:35:01 +0000 South Africa After the Elections: Balancing Domestic and International Policy Priorities 16 May 2019 — 1:30PM TO 2:30PM Anonymous (not verified) 9 May 2019 Chatham House | 10 St James's Square | London | SW1Y 4LE The government that emerges from the 8 May election in South Africa faces immediate domestic and international foreign policy demands. Attracting Foreign Direct Investment to stimulate job growth, accelerating anti-corruption and good governance efforts are at the forefront of the new government’s agenda. International ambitions will be upgraded such as UN security council reform, maximizing South Africa’s G20, BRICS and IBSA membership and preparing for South Africa’s chairmanship of the African Union (AU) in 2020. At this meeting, the speakers – Moeletsi Mbeki, deputy chairman of SAIIA and author with Nobantu Mbeki of A Manifesto for Social Change: How to Save South Africa, and Elizabeth Sidiropoulos, chief executive of SAIIA and currently co-editing a volume on A South African Foreign Policy for the 2020s which will be published in 2019 – will reflect on the election and discuss the new government’s domestic and international policy agenda. The meeting will be chaired by Ann Grant, former British High Commissioner to South Africa (2000-05) with past experience working for Oxfam, Standard Chartered Bank and Tullow Oil. Full Article
rna Zimbabwe’s Economic Governance and Regional Integration By www.chathamhouse.org Published On :: Fri, 06 Nov 2020 13:59:46 +0000 Zimbabwe’s Economic Governance and Regional Integration 17 November 2020 — 12:00PM TO 1:30PM Anonymous (not verified) 6 November 2020 Online Panellists discuss policy and governance for long-term economic prosperity in Zimbabwe, reflecting on the role of institutional change and regional integration in the context of the shocks caused by the coronavirus pandemic. At this virtual event, panellists and participants will discuss policy and governance for long-term economic prosperity in Zimbabwe, reflecting on the role of institutional change and regional integration. The government of Zimbabwe has emphasized its commitment to economic reform and its ambition to achieve upper-middle-income status by 2030, but there are considerable challenges to overcome. The COVID-19 pandemic has exacerbated existing economic fragility. Improving the business climate to attract international private-sector investment will be contingent on clear, consistent and coherent policy and implementation, including targeting abuse and corruption. Zimbabwe has, in recent years, successfully strengthened its regional trade integration, although some trade frictions remain. This is an important factor not only for catalysing economic growth in Zimbabwe, but for supporting regional prosperity and post-COVID recovery. This webinar is the second in a series of events held in partnership with the Konrad Adenauer Stiftung on Zimbabwe’s economic reform and recovery. Read a meeting summary This event will also be broadcast live on the Africa Programme Facebook page. Full Article
rna Black perspectives on international relations By www.chathamhouse.org Published On :: Tue, 04 Oct 2022 08:42:13 +0000 Black perspectives on international relations 27 October 2022 — 5:00PM TO 6:00PM Anonymous (not verified) 4 October 2022 Chatham House and Online How can black perspectives help the world tackle global challenges and expand our understanding of international relations? As social boundaries change, the viewpoints of black academics, thought leaders and policymakers have grown in both influence and strength worldwide, challenging western and institutional norms. However, many institutions and organizations, long established with the exclusion of black voices, have to adapt if there is to be greater inclusion and diversity of thought when tackling major global issues. Growing reflection on the legacy of colonialism and the importance of the power of diversity may be needed for today’s problems. The search for global racial equality has seen a growing commitment to ensuring the black experience is at the heart of geopolitical discussions. This panel discussion looks at what changes are occurring now and how is the conversation shifting. It also examines the challenges posed by the increasing politicization of race and culture issues in the current political environment. Key questions discussed by the panel include: What is the importance of black voices in international relations and where are the main challenges to greater incorporation? What are some of the leading perspectives, approaches and beliefs within Africa and across the black diaspora regarding international relations? To what extent are governments, businesses and leading global institutions making efforts to include more black voices in decision-making? How are black academics changing wider geopolitical conversations and to what extent can deeper conversations lead to change? Will an ‘African Century’ bring black perspectives on international relations to the fore of the geopolitical agenda? As with all members events, questions from the audience drive the conversation. Read the transcript. Full Article
rna Crisis in the international order By www.chathamhouse.org Published On :: Thu, 08 Dec 2022 15:32:14 +0000 Crisis in the international order 23 January 2023 — 6:00PM TO 7:00PM Anonymous (not verified) 8 December 2022 Chatham House and Online Why societies are challenging the international order? Major global challenges, including the climate, refugee crises and the global pandemic, are increasingly revealing shortcomings in our international system and are bringing to the forefront calls for a more just world. But what is justice? Calls for justice come in many forms and from many directions - from the fair distribution of resources to the recognition of indigenous rights. While for some there is consensus on the importance of multilateral cooperation to tackle global issues, there is a sharp North/South divide at the centre of debates on issues such as the climate crisis, racial justice, and international law. Countries from the global South are demanding more equitable and redistributive solutions, for example in the distribution of COVID-19 vaccines, while the Global North seek the status quo. North/South division slows progress on reform. Some political actors are starting to challenge the very foundations of our global order, a move that could dramatically change the global system as we know it. Key questions to consider include: Why are there tensions between the global North and South? How can these issues be addressed? Does the global North ‘owe’ the global South some form of justice? Which form of justice? If these issues are not addressed, what are the implications for the current international order? This event is held in conjunction with International Affairs. As with all members events, questions from the audience drive the conversation. Read the transcript. Full Article
rna Can rhetoric match reality? Britain’s international development future By www.chathamhouse.org Published On :: Wed, 12 Apr 2023 09:07:13 +0000 Can rhetoric match reality? Britain’s international development future 27 April 2023 — 9:00AM TO 10:00AM Anonymous (not verified) 12 April 2023 Chatham House and Online In conversation with Andrew Mitchell, minister of state, UK Foreign, Commonwealth and Development Office. Last month’s updated Integrated Review positioned international development as a key pillar of British foreign policy which sets out the importance of the UK’s efforts to shape the ‘global strategic environment’. Focusing heavily on Africa and the Indo-Pacific, international development will be central to the ambition of a ‘Global Britain’. The Integrated Review outlines seven priority areas to revitalize the drive to meet the Global Goals, with a climate security strategy at its heart, while seeking to go beyond official development assistance (ODA). However, there are major challenges ahead. Since 2021, the UK’s ODA has been cut from 0.7 per cent to 0.5 per cent gross national income (GNI). Some are concerned that since being subsumed by the UK Foreign Office, the UK Foreign, Commonwealth and Development Office has diluted the effectiveness of UK international development. Then there is the question of the strength of British public support for development assistance at a time of domestic economic hardship. Can rhetoric match reality? This event tackles questions including: What does the UK’s vision for international development mean in practice? Will aid and development help push Britain’s influence around the world? Can policymakers and politicians garner domestic support for international aid in times of economic uncertainty, and if so, how? Can the UK rebuild its reputation in the world while it doesn’t meet its 0.7 per cent GNI target? This event will be balloted for in-person attendance. Register your interest to join and a confirmation email will be sent to you on Tuesday 25 May at 12:00 BST to confirm your place at the event. As with all member events, questions from the audience drive the conversation. A coffee reception will immediately follow this event. Full Article
rna The Emission of Internal Conversion Electrons Rather Than Auger Electrons Increased the Nucleus-Absorbed Dose for 161Tb Compared with 177Lu with a Higher Dose Response for [161Tb]Tb-DOTA-LM3 Than for [161Tb]Tb-DOTATATE By jnm.snmjournals.org Published On :: 2024-10-01T04:08:08-07:00 Preclinical data have shown that 161Tb-labeled peptides targeting the somatostatin receptor are therapeutically more effective for peptide receptor radionuclide therapy than are their 177Lu-labeled counterparts. To further substantiate this enhanced therapeutic effect, we performed cellular dosimetry to quantify the absorbed dose to the cell nucleus and compared dose–response curves to evaluate differences in relative biological effectiveness in vitro. Methods: CA20948 cell survival was assessed after treatment with [161Tb]Tb- and [177Lu]Lu-DOTATATE (agonist) and with [161Tb]Tb- and [177Lu]Lu-DOTA-LM3 (antagonist) via a clonogenic assay. Cell binding, internalization, and dissociation assays were performed up to 7 d to acquire time-integrated activity coefficients. Separate S values for each type of particle emission (Auger/internal conversion [IC] electrons and β– particles) were computed via Monte Carlo simulations, while considering spheric cells. Once the absorbed dose to the cell nucleus was calculated, survival curves were fitted to the appropriate linear or linear-quadratic model and corresponding relative biological effectiveness was evaluated. Results: Although the radiopeptide uptake was independent of the radionuclide, [161Tb]Tb-DOTATATE and [161Tb]Tb-DOTA-LM3 delivered a 3.6 and 3.8 times higher dose to the nucleus, respectively, than their 177Lu-labeled counterparts on saturated receptor binding. This increased nucleus-absorbed dose was mainly due to the additional emission of IC and not Auger electrons by 161Tb. When activity concentrations were considered, both [161Tb]Tb-DOTATATE and [161Tb]Tb-DOTA-LM3 showed a lower survival fraction than did labeling with 177Lu. When the absorbed dose to the nucleus was considered, no significant difference could be observed between the dose–response curves for [161Tb]Tb- and [177Lu]Lu-DOTATATE. [161Tb]Tb-DOTA-LM3 showed a linear-quadratic dose response, whereas [161Tb]Tb-DOTATATE showed only a linear dose response within the observed dose range, suggesting additional cell membrane damage by Auger electrons. Conclusion: The IC, rather than Auger, electrons emitted by 161Tb resulted in a higher absorbed dose to the cell nucleus and lower clonogenic survival for [161Tb]Tb-DOTATATE and [161Tb]Tb-DOTA-LM3 than for the 177Lu-labeled analogs. In contrast, [161Tb]Tb-DOTATATE showed no higher dose response than [177Lu]Lu-DOTATATE, whereas for [161Tb]Tb-DOTA-LM3 an additional quadratic response was observed. Because of this quadratic response, potentially caused by cell membrane damage, [161Tb]Tb-DOTA-LM3 is a more effective radiopeptide than [161Tb]Tb-DOTATATE for labeling with 161Tb. Full Article
rna Astronaut released from hospital after return from International Space Station By www.upi.com Published On :: Sat, 26 Oct 2024 16:41:44 -0400 An unnamed astronaut was released from Ascension Sacred Heart Pensacola in Florida and returned to Johnson Space Center in Houston in good health Saturday, NASA reported. Full Article
rna SpaceX launches resupply mission to International Space Station By www.upi.com Published On :: Mon, 04 Nov 2024 21:40:52 -0500 SpaceX launched a rocket loaded with 6,000 pounds of supplies to the International Space Station on Monday night from the Florida coast. Full Article
rna Small wooden satellite heads to International Space Station By www.upi.com Published On :: Wed, 06 Nov 2024 07:13:24 -0500 The first wood-panel satellite is on a SpaceX flight to the International Space Station, where it will test the durability of wood in space. Full Article
rna ECOT Looms Over Ohio Gubernatorial Candidates' Education Plans By www.edweek.org Published On :: Fri, 14 Sep 2018 00:00:00 +0000 Any discussion in politics of the future of education in Ohio inevitably turns to the Electronic Classroom of Tomorrow. Full Article Ohio
rna Difficult Conversations: Learning from Tennessee's Turnaround Efforts By blogs.edweek.org Published On :: Thu, 09 Nov 2017 00:00:00 +0000 A state department leader outlines the challenges and benefits of partnering with researchers in school turnaround efforts in Tennessee. Full Article Tennessee
rna Florida Gubernatorial Candidate Vows to Stop Common Core By blogs.edweek.org Published On :: Tue, 18 Sep 2018 00:00:00 +0000 Republican gubernatorial nominee Ron DeSantis is renewing a political trend that had fallen dormant: calling for the end of the use of the shared standards. Full Article Florida
rna Pastrnak, McAvoy lead Bruins to thrilling comeback win vs. Blues By sports.yahoo.com Published On :: Wed, 13 Nov 2024 04:50:57 GMT The Bruins earned their best win of the season with a third period comeback vs. the Blues. Can this result serve as a turning point for Boston? Full Article article Sports
rna Tennessee soccer earns fourth straight NCAA Tournament berth, will face No. 7 seed Virginia Tech By sports.yahoo.com Published On :: Tue, 12 Nov 2024 18:31:47 GMT Tennessee soccer earned an NCAA Tournament berth for the fourth straight season and will face No. 7 seed Virginia Tech in the first round Friday Full Article article Sports
rna Diurnal Fluctuations in Steroid Hormones Tied to Variation in Intrinsic Functional Connectivity in a Densely Sampled Male By www.jneurosci.org Published On :: 2024-05-29 Hannah GrotzingerMay 29, 2024; 44:e1856232024-e1856232024BehavioralSystemsCognitive Full Article
rna This Week in The Journal By www.jneurosci.org Published On :: 2024-10-09T09:30:20-07:00 Full Article
rna This Week in The Journal By www.jneurosci.org Published On :: 2024-10-16T09:30:19-07:00 Full Article
rna This Week in The Journal By www.jneurosci.org Published On :: 2024-10-23T09:30:30-07:00 Full Article
rna This Week in The Journal By www.jneurosci.org Published On :: 2024-10-30T09:30:22-07:00 Full Article
rna This Week in The Journal By www.jneurosci.org Published On :: 2024-11-06T09:30:07-08:00 Full Article
rna Pope Francis to attend the Second International Conference on Nutrition (ICN2) By www.fao.org Published On :: Tue, 20 May 2014 00:00:00 GMT Pope Francis will add his voice to the fight against hunger and malnutrition by addressing the Second International [...] Full Article
rna Queen Letizia of Spain to attend the Second International Conference on Nutrition By www.fao.org Published On :: Wed, 24 Sep 2014 00:00:00 GMT Rome/New York – Queen Letizia of Spain will join international efforts against hunger and [...] Full Article
rna International Conference on South-South Cooperation praises FAO's leadership and facilitation role By www.fao.org Published On :: Tue, 16 Dec 2014 00:00:00 GMT Marrakesh, 15 December 2014 – African Ministers of Agriculture recognized the facilitating role of FAO “under the new strategic framework established with the leadership of the [...] Full Article
rna FAO Director-General highlights International Year of Soils to Agriculture Ministers in Berlin By www.fao.org Published On :: Mon, 19 Jan 2015 00:00:00 GMT Berlin- FAO Director-General José Graziano da Silva has highlighted some of the most important events on the organization’s 2015 calendar during meetings with agriculture ministers who attended the Global Forum [...] Full Article
rna Internal documents now publically available By www.fao.org Published On :: Mon, 02 Nov 2015 00:00:00 GMT FAO is making publically available for the first time, a series of internal documents relating to programme and project management, among others. These documents range from the guidelines on the [...] Full Article