The private Catholic university in South Bend with $11 billion in reserves follows similar decisions by other endowment-rich institutions.

Anderson, a 6-7 wing from South Bend, put his name in the transfer portal exactly a week ago.

Legendary kicker Adam Vinatieri wants to return for a 25th season but knows the Colts might have other plans.

No final decision has been made by the Colts, but Indianapolis does have two young kickers on the roster in Chase McLaughlin and Rodrigo Blankenship.

Prophet Brown's wide-ranging skill set could bring possibilities for Notre Dame.

NFL draft analyst Scott Wright takes a closer look at the Fighting Irish roster and 2021 draft hopefuls.

Fighting Irish went 32-6 and also went to the Elite Eight the next season.

'It starts with the team and the students'; athletic director Jack Swarbrick ponders possibilities for Notre Dame Stadium this year

Matt Balis has tried to guide Fighting Irish football players through offseason training from a distance.

Notre Dame's national/international visibility would seem to give Irish student-athletes an edge.

Notre Dame's John Shannon won the award as the nation's top long snapper but he went undrafted; he decides to change course and pursue a dream

After a record-setting career at South Bend Riley, he rarely cracked the Hoosiers lineup in two seasons.

Anderson, a 6-7 wing from South Bend, put his name in the transfer portal exactly a week ago.

The Netflix series "Self Made: Inspired by the Life of Madam C.J. Walker" was produced in Ontario, Canada. But it references Indianapolis locations.

Butler, previously announced as part of the Maui Jim Maui Invitational, will be joined in the eight-team field by Notre Dame.

'It starts with the team and the students'; athletic director Jack Swarbrick ponders possibilities for Notre Dame Stadium this year

Notre Dame's John Shannon won the award as the nation's top long snapper but he went undrafted; he decides to change course and pursue a dream

Matt Balis has tried to guide Fighting Irish football players through offseason training from a distance.

Notre Dame's national/international visibility would seem to give Irish student-athletes an edge.

A family of four was able to safely get out of their house after a fire caused $200,000 of damage.

Jerome Adams took his inhaler out while discussing the impact of Covid-19 on black people.

With their win over the Cardinal, the Irish have elevated themselves into the top tier.

The actor responded unfavorably to a tweet by McConnell's campaign, and the beef didn't stop there.

Two new books critical of the president -- one from the left, one from the right -- imagine a path beyond our current divisions.

oscon: Beginner's Guide to Computer Vision - 2D/3D image fundamentals, OpenCV, OpenNI Library + more http://t.co/ph2dKrC9W4 #oscon #tutorial

Hear about travel to Amsterdam as the Amateur Traveler talks again to Erik Smith from onmyfeetorinmymind.com. Erik returned to Amsterdam for the seventh or eighth time recently.

Hear about a western Mediterranean cruise to Spain, Gibraltar, France, Monaco and Italy on Holland America's Westerdam where I just attended a press trip.

The following article, BREAKING: Sen Marsha Blackburn Introduces Stop COVID Act…Allowing US Citizens To Sue Communist China For Damage They’ve Inflicted On Our Nation, was first published on 100PercentFedUp.com.

Yesterday, Senator Marsha Blackburn (R-TN), along with Senator Martha McSally (R-AZ) introduced the Stop COVID Act, giving Americans the ability to sue Communist China for the damage they’ve inflicted on our nation. Senator Blackburn appeared on Fox News with host Judge Jeanine where she explained the act to Jeanine Pirro. Blackburn told the Fox News […]

Continue reading: BREAKING: Sen Marsha Blackburn Introduces Stop COVID Act…Allowing US Citizens To Sue Communist China For Damage They’ve Inflicted On Our Nation ...

Chatham House is pleased to announce that Adam Ward will join the institute in a new role as deputy director.

Dame Margaret Anstee, the first female UN under-secretary general, who died last year after a long and distinguished career as a diplomat, was remembered this week at Chatham House.

Incorporation of ribonucleotides into DNA can severely diminish genome integrity. However, how ribonucleotides instigate DNA damage is poorly understood. In DNA, they can promote replication stress and genomic instability and have been implicated in several diseases. We report here the impact of the ribonucleotide rATP and of its naturally occurring damaged analog 1,N6-ethenoadenosine (1,N6-ϵrA) on translesion synthesis (TLS), mediated by human DNA polymerase η (hpol η), and on RNase H2–mediated incision. Mass spectral analysis revealed that 1,N6-ϵrA in DNA generates extensive frameshifts during TLS, which can lead to genomic instability. Moreover, steady-state kinetic analysis of the TLS process indicated that deoxypurines (i.e. dATP and dGTP) are inserted predominantly opposite 1,N6-ϵrA. We also show that hpol η acts as a reverse transcriptase in the presence of damaged ribonucleotide 1,N6-ϵrA but has poor RNA primer extension activities. Steady-state kinetic analysis of reverse transcription and RNA primer extension showed that hpol η favors the addition of dATP and dGTP opposite 1,N6-ϵrA. We also found that RNase H2 recognizes 1,N6-ϵrA but has limited incision activity across from this lesion, which can lead to the persistence of this detrimental DNA adduct. We conclude that the damaged and unrepaired ribonucleotide 1,N6-ϵrA in DNA exhibits mutagenic potential and can also alter the reading frame in an mRNA transcript because 1,N6-ϵrA is incompletely incised by RNase H2.

Jungang Li, Guozhen Lu and Qiaohua Yang
Trans. Amer. Math. Soc. 373 (2020), 3483-3513.
Abstract, references and article information

Hilaf Hasson and Jeffrey Yelton
Trans. Amer. Math. Soc. 373 (2020), 3009-3030.
Abstract, references and article information

Jeremy Brazas
Proc. Amer. Math. Soc. 148 (2019), 2655-2670.
Abstract, references and article information

Incorporation of ribonucleotides into DNA can severely diminish genome integrity. However, how ribonucleotides instigate DNA damage is poorly understood. In DNA, they can promote replication stress and genomic instability and have been implicated in several diseases. We report here the impact of the ribonucleotide rATP and of its naturally occurring damaged analog 1,N6-ethenoadenosine (1,N6-ϵrA) on translesion synthesis (TLS), mediated by human DNA polymerase η (hpol η), and on RNase H2–mediated incision. Mass spectral analysis revealed that 1,N6-ϵrA in DNA generates extensive frameshifts during TLS, which can lead to genomic instability. Moreover, steady-state kinetic analysis of the TLS process indicated that deoxypurines (i.e. dATP and dGTP) are inserted predominantly opposite 1,N6-ϵrA. We also show that hpol η acts as a reverse transcriptase in the presence of damaged ribonucleotide 1,N6-ϵrA but has poor RNA primer extension activities. Steady-state kinetic analysis of reverse transcription and RNA primer extension showed that hpol η favors the addition of dATP and dGTP opposite 1,N6-ϵrA. We also found that RNase H2 recognizes 1,N6-ϵrA but has limited incision activity across from this lesion, which can lead to the persistence of this detrimental DNA adduct. We conclude that the damaged and unrepaired ribonucleotide 1,N6-ϵrA in DNA exhibits mutagenic potential and can also alter the reading frame in an mRNA transcript because 1,N6-ϵrA is incompletely incised by RNase H2.

(Damon Runyon Cancer Research Foundation) The first class of Damon Runyon Quantitative Biology Fellowship Awardees launched their research in novel directions that may lead to the next breakthroughs in cancer research. Nine brilliant young scientists will apply their quantitative skills to design innovative experiments and interpret massive data sets that may help solve important biological and clinical problems.

Samuel W Entwisle
Apr 6, 2020; 0:RA120.001946v2-mcp.RA120.001946
Research

Rationale: Despite its widespread use in oncology, the PET radiotracer ¹⁸F-FDG is ineffective for improving early detection of pancreatic ductal adenocarcinoma (PDAC). An alternative strategy for early detection of pancreatic cancer involves visualisation of high-grade pancreatic intraepithelial neoplasias (PanIN-3), generally regarded as the non-invasive precursors of PDAC. The DNA damage response is known to be hyper-activated in late-stage PanINs. Therefore, we investigated whether the SPECT imaging agent, ¹¹¹In-anti-H2AX-TAT, allows visualisation of the DNA damage repair marker H2AX in PanIN-3s in an engineered mouse model of PDAC, to facilitate early detection of PDAC. Methods: Genetically engineered KPC mice (KRasLSL.G12D/+; p53LSL.R172H/+; PdxCre) were imaged with ¹⁸F-FDG and ¹¹¹In-anti-H2AX-TAT. PanIN/PDAC presence visualised by histology was compared with autoradiography and immunofluorescence. Separately, the survival of KPC mice imaged with ¹¹¹In-anti-H2AX-TAT was evaluated. Results: In KPC mouse pancreata, H2AX expression was increased in high-grade PanINs, but not in PDAC, corroborating earlier results obtained from human pancreas sections. Uptake of ¹¹¹In-anti-H2AX-TAT, but not ¹¹¹In-IgG-TAT or ¹⁸F-FDG, within the pancreas was positively correlated with the age of KPC mice, which was correlated with the number of high-grade PanINs. ¹¹¹In-anti-H2AX-TAT localises preferentially in high-grade PanIN lesions, but not in established PDAC. Younger, non-tumour-bearing KPC mice that show uptake of ¹¹¹In-anti-H2AX-TAT in the pancreas survive significantly shorter than mice with physiological ¹¹¹In-anti-H2AX-TAT uptake. Conclusion: ¹¹¹In-anti-H2AX-TAT imaging allows non-invasive detection of DNA damage repair signalling upregulation in pre-invasive PanIN lesions and is a promising new tool to aid in the early detection and staging of pancreatic cancer.

This article has been withdrawn by the authors as part of this review overlapped with the contents of Pietrangelo A and Ridgway ND. 2018. Cellular and Molecular Life Sciences. 75; 3079-98.

Stimulating brown adipose tissue (BAT) activity represents a promising therapy for overcoming metabolic diseases. mTORC2 is important for regulating BAT metabolism, but its downstream targets have not been fully characterized. In this study, we apply proteomics and phosphoproteomics to investigate the downstream effectors of mTORC2 in brown adipocytes. We compare wild-type controls to isogenic cells with an induced knockout of the mTORC2 subunit RICTOR (Rictor-iKO) by stimulating each with insulin for a 30-minute time course. In Rictor-iKO cells, we identify decreases to the abundance of glycolytic and de novo lipogenesis enzymes, and increases to mitochondrial proteins as well as a set of proteins known to increase upon interferon stimulation. We also observe significant differences to basal phosphorylation due to chronic RICTOR loss including decreased phosphorylation of the lipid droplet protein perilipin-1 in Rictor-iKO cells, suggesting that RICTOR could be involved with regulating basal lipolysis or droplet dynamics. Finally, we observe mild dampening of acute insulin signaling response in Rictor-iKO cells, and a subset of AKT substrates exhibiting statistically significant dependence on RICTOR.

Contact between inflammatory cells and endothelial cells (ECs) is a crucial step in vascular inflammation. Recently, we demonstrated that the cell-surface level of endomucin (EMCN), a heavily O-glycosylated single-transmembrane sialomucin, interferes with the interactions between inflammatory cells and ECs. We have also shown that, in response to an inflammatory stimulus, EMCN is cleared from the cell surface by an unknown mechanism. In this study, using adenovirus-mediated overexpression of a tagged EMCN in human umbilical vein ECs, we found that treatment with tumor necrosis factor α (TNF-α) or the strong oxidant pervanadate leads to loss of cell-surface EMCN and increases the levels of the C-terminal fragment of EMCN 3- to 4-fold. Furthermore, treatment with the broad-spectrum matrix metalloproteinase inhibitor batimastat (BB94) or inhibition of ADAM metallopeptidase domain 10 (ADAM10) and ADAM17 with two small-molecule inhibitors, GW280264X and GI254023X, or with siRNA significantly reduced basal and TNFα-induced cell-surface EMCN cleavage. Release of the C-terminal fragment of EMCN by TNF-α treatment was blocked by chemical inhibition of ADAM10 alone or in combination with ADAM17. These results indicate that cell-surface EMCN undergoes constitutive cleavage and that TNF-α treatment dramatically increases this cleavage, which is mediated predominantly by ADAM10 and ADAM17. As endothelial cell-surface EMCN attenuates leukocyte–EC interactions during inflammation, we propose that EMCN is a potential therapeutic target to manage vascular inflammation.