melanoma

Airline crews twice as likely to develop melanoma: study

San Francisco – Pilots and cabin crew have about twice the incidence of melanoma – the most serious type of skin cancer – compared to the general population, a recent study indicates.




melanoma

WITHDRAWN: Quantitative mass spectrometry analysis of PD-L1 protein expression, N-glycosylation and expression stoichiometry with PD-1 and PD-L2 in human melanoma [Research]

This article has been withdrawn by the authors. We discovered an error after this manuscript was published as a Paper in Press. Specifically, we learned that the structures of glycans presented for the PD-L1 peptide were drawn and labeled incorrectly. We wish to withdraw this article and submit a corrected version for review.




melanoma

In Early Trial, Targeted Therapy Fights Advanced Melanoma

Title: In Early Trial, Targeted Therapy Fights Advanced Melanoma
Category: Health News
Created: 8/25/2010 6:10:00 PM
Last Editorial Review: 8/26/2010 12:00:00 AM




melanoma

New Drug May Treat Advanced Melanoma

Title: New Drug May Treat Advanced Melanoma
Category: Health News
Created: 8/26/2010 11:04:00 AM
Last Editorial Review: 8/26/2010 11:04:24 AM




melanoma

Could a Laser Skin Test Someday Replace Biopsy to Spot Melanoma?

Title: Could a Laser Skin Test Someday Replace Biopsy to Spot Melanoma?
Category: Health News
Created: 8/21/2015 12:00:00 AM
Last Editorial Review: 8/24/2015 12:00:00 AM




melanoma

Moles Not Most Likely Spot for Melanomas

Title: Moles Not Most Likely Spot for Melanomas
Category: Health News
Created: 8/29/2017 12:00:00 AM
Last Editorial Review: 8/29/2017 12:00:00 AM




melanoma

Spotting the Signs of Deadly Melanoma Skin Cancers

Title: Spotting the Signs of Deadly Melanoma Skin Cancers
Category: Health News
Created: 8/22/2021 12:00:00 AM
Last Editorial Review: 8/23/2021 12:00:00 AM





melanoma

L'Oreal Paris and Melanoma Research Alliance (MRA) Unveil It's THAT Worth It To Me, a Public Health Campaign and Social Media Call-to-Action that Drives Melanoma Awareness, Raises Funding for Research and Encourages Sun Protection and Sunless Tann

Eva Longoria :30 English




melanoma

Self-supplying Cu2+ and H2O2 synergistically enhancing disulfiram-mediated melanoma chemotherapy

RSC Adv., 2024, 14,13180-13189
DOI: 10.1039/D4RA01075B, Paper
Open Access
Yingqian Gao, Xiaojun Cai, Weijuan Zou, Xiuzhen Tang, Lixian Jiang, Junnian Hao, Yuanyi Zheng, Xinhua Ye, Tao Ying, Ao Li
Disulfiram (DSF) can target and kill cancer cells by disrupting cellular degradation of extruded proteins and has therefore received particular attention for its tumor chemotherapeutic potential.
The content of this RSS Feed (c) The Royal Society of Chemistry




melanoma

Scientists get a better understanding of melanoma




melanoma

Scientists discover human genome regions that influence risk of developing melanoma




melanoma

IBM announces two new partnerships with MoleMap New Zealand and Melanoma Institute Australia to advance research in melanoma identification

IBM Research has announced a research agreement with MoleMap New Zealand to help further advance the identification of melanoma using cognitive technology. It builds on planned research with Melanoma Institute Australia. IBM Research plans to analyse dermatological images of skin lesions to help identify specific clinical patterns in the early stages of melanoma. The New Zealand and Australian research aims to help reduce unnecessary biopsies and help clinicians more accurately understand skin cancer, which could help to improve patient care.




melanoma

IBM announces two new partnerships with Melanoma Institute Australia and MoleMap to advance research in melanoma identification

IBM Research in Australia has announced plans to undertake research with Melanoma Institute Australia to help further advance the identification of melanoma using cognitive technology. This planned research builds on IBM’s existing research agreement with Molemap, which uses advanced visual analytics to analyse more than 40,000 data sets including images and text. IBM Research plans to analyse dermatological images of skin lesions to help identify specific clinical patterns in the early stages of melanoma1. The Australian research aims to help reduce unnecessary biopsies and help clinicians more accurately understand skin cancer, which could help to improve patient care.




melanoma

Interleukin-12 electroporation may sensitize 'cold' melanomas to immunotherapies

(American Association for Cancer Research) Combining intratumoral electroporation of interleukin-12 (IL-12) DNA (tavokinogene telseplasmid, or TAVO) with the immune checkpoint inhibitor pembrolizumab (Keytruda) led to clinical responses in patients with immunologically quiescent advanced melanoma, according to results from a phase II trial.




melanoma

The Challenge of Classifying Metastatic Cell Properties by Molecular Profiling Exemplified with Cutaneous Melanoma Cells and Their Cerebral Metastasis from Patient Derived Mouse Xenografts [Research]

The prediction of metastatic properties from molecular analyses still poses a major challenge. Here we aimed at the classification of metastasis-related cell properties by proteome profiling making use of cutaneous and brain-metastasizing variants from single melanomas sharing the same genetic ancestry. Previous experiments demonstrated that cultured cells derived from these xenografted variants maintain a stable phenotype associated with a differential metastatic behavior: The brain metastasizing variants produce more spontaneous micro-metastases than the corresponding cutaneous variants. Four corresponding pairs of cutaneous and metastatic cells were obtained from four individual patients, resulting in eight cell-lines presently investigated. Label free proteome profiling revealed significant differences between corresponding pairs of cutaneous and cerebellar metastases from the same patient. Indeed, each brain metastasizing variant expressed several apparently metastasis-associated proteomic alterations as compared with the corresponding cutaneous variant. Among the differentially expressed proteins we identified cell adhesion molecules, immune regulators, epithelial to mesenchymal transition markers, stem cell markers, redox regulators and cytokines. Similar results were observed regarding eicosanoids, considered relevant for metastasis, such as PGE2 and 12-HETE. Multiparametric morphological analysis of cells also revealed no characteristic alterations associated with the cutaneous and brain metastasis variants. However, no correct classification regarding metastatic potential was yet possible with the present data. We thus concluded that molecular profiling is able to classify cells according to known functional categories but is not yet able to predict relevant cell properties emerging from networks consisting of many interconnected molecules. The presently observed broad diversity of molecular patterns, irrespective of restricting to one tumor type and two main classes of metastasis, highlights the important need to develop meta-analysis strategies to predict cell properties from molecular profiling data. Such base knowledge will greatly support future individualized precision medicine approaches.




melanoma

WITHDRAWN: Quantitative mass spectrometry analysis of PD-L1 protein expression, N-glycosylation and expression stoichiometry with PD-1 and PD-L2 in human melanoma [Research]

This article has been withdrawn by the authors. We discovered an error after this manuscript was published as a Paper in Press. Specifically, we learned that the structures of glycans presented for the PD-L1 peptide were drawn and labeled incorrectly. We wish to withdraw this article and submit a corrected version for review.




melanoma

Incidence of Childhood and Adolescent Melanoma in the United States: 1973-2009

The incidence of childhood and adolescent melanoma has been significantly increasing up to 2004. Risk factors (fair skin, light-colored hair/eyes, female gender, presence of nevi, family history, increased number of sunburns, and exposure to UV radiation) are associated with melanoma.

This study describes incidence trends of melanoma diagnosed between the ages of 0 and 19 years and from 1973 through 2009 by gender, stage and age at diagnosis, primary site, and exposure to UV radiation. (Read the full article)




melanoma

Women More Likely to Survive Melanoma Than Men: Study

Title: Women More Likely to Survive Melanoma Than Men: Study
Category: Health News
Created: 5/1/2012 2:05:00 PM
Last Editorial Review: 5/2/2012 12:00:00 AM




melanoma

Targeted chemotherapy overcomes drug resistance in melanoma [Research Papers]

The emergence of drug resistance is a major obstacle for the success of targeted therapy in melanoma. Additionally, conventional chemotherapy has not been effective as drug-resistant cells escape lethal DNA damage effects by inducing growth arrest commonly referred to as cellular dormancy. We present a therapeutic strategy termed "targeted chemotherapy" by depleting protein phosphatase 2A (PP2A) or its inhibition using a small molecule inhibitor (1,10-phenanthroline-5,6-dione [phendione]) in drug-resistant melanoma. Targeted chemotherapy induces the DNA damage response without causing DNA breaks or allowing cellular dormancy. Phendione treatment reduces tumor growth of BRAFV600E-driven melanoma patient-derived xenografts (PDX) and diminishes growth of NRASQ61R-driven melanoma, a cancer with no effective therapy. Remarkably, phendione treatment inhibits the acquisition of resistance to BRAF inhibition in BRAFV600E PDX highlighting its effectiveness in combating the advent of drug resistance.




melanoma

Association of Anti-TNF with Decreased Survival in Steroid Refractory Ipilimumab and Anti-PD1-Treated Patients in the Dutch Melanoma Treatment Registry

Purpose:

Unleashing the immune system by PD-1 and/or CTLA-4 blockade can cause severe immune-related toxicity necessitating immunosuppressive treatment. Whether immunosuppression for toxicity impacts survival is largely unknown.

Experimental Design:

Using data from the prospective nationwide Dutch Melanoma Treatment Registry (DMTR), we analyzed the association between severe toxicity and overall survival (OS) in 1,250 patients with advanced melanoma who were treated with immune checkpoint inhibitors (ICI) in first line between 2012 and 2017. Furthermore, we analyzed whether toxicity management affected survival in these patients.

Results:

A total of 1,250 patients were included, of whom 589 received anti-PD1 monotherapy, 576 ipilimumab, and 85 combination therapy. A total of 312 patients (25%) developed severe (grade ≥3) toxicity. Patients experiencing severe ICI toxicity had a significantly prolonged survival with a median OS of 23 months compared with 15 months for patients without severe toxicity [hazard ratio (HRadj) = 0.77; 95% confidence interval (CI), 0.63–0.93]. Among patients experiencing severe toxicity, survival was significantly decreased in patients who received anti-TNF ± steroids for steroid-refractory toxicity compared with patients who were managed with steroids only (HRadj = 1.61; 95% CI, 1.03–2.51), with a median OS of 17 and 27 months, respectively.

Conclusions:

Patients experiencing severe ICI toxicity have a prolonged OS. However, this survival advantage is abrogated when anti-TNF is administered for steroid-refractory toxicity. Further prospective studies are needed to assess the effect of different immunosuppressive regimens on checkpoint inhibitor efficacy.

See related commentary by Weber and Postow, p. 2085




melanoma

Proteomic Analysis of CSF from Patients with Leptomeningeal Melanoma Metastases Identifies Signatures Associated with Disease Progression and Therapeutic Resistance

Purpose:

The development of leptomeningeal melanoma metastases (LMM) is a rare and devastating complication of the late-stage disease, for which no effective treatments exist. Here, we performed a multi-omics analysis of the cerebrospinal fluid (CSF) from patients with LMM to determine how the leptomeningeal microenvironment shapes the biology and therapeutic responses of melanoma cells.

Experimental Design:

A total of 45 serial CSF samples were collected from 16 patients, 8 of these with confirmed LMM. Of those with LMM, 7 had poor survival (<4 months) and one was an extraordinary responder (still alive with survival >35 months). CSF samples were analyzed by mass spectrometry and incubated with melanoma cells that were subjected to RNA sequencing (RNA-seq) analysis. Functional assays were performed to validate the pathways identified.

Results:

Mass spectrometry analyses showed the CSF of most patients with LMM to be enriched for pathways involved in innate immunity, protease-mediated damage, and IGF-related signaling. All of these were anticorrelated in the extraordinary responder. RNA-seq analysis showed CSF to induce PI3K/AKT, integrin, B-cell activation, S-phase entry, TNFR2, TGFβ, and oxidative stress responses in the melanoma cells. ELISA assays confirmed that TGFβ expression increased in the CSF of patients progressing with LMM. CSF from poorly responding patients conferred tolerance to BRAF inhibitor therapy in apoptosis assays.

Conclusions:

These analyses identified proteomic/transcriptional signatures in the CSF of patients who succumbed to LMM. We further showed that the CSF from patients with LMM has the potential to modulate BRAF inhibitor responses and may contribute to drug resistance.

See related commentary by Glitza Oliva and Tawbi, p. 2083




melanoma

Pan-Cancer Efficacy of Vemurafenib in BRAFV600-Mutant Non-Melanoma Cancers [Research Briefs]

BRAFV600 mutations occur in a wide range of tumor types, and RAF inhibition has become standard in several of these cancers. Despite this progress, BRAFV600 mutations have historically been considered a clear demonstration of tumor lineage context–dependent oncogene addiction, based predominantly on the insensitivity to RAF inhibition in colorectal cancer. However, the true broader activity of RAF inhibition pan-cancer remains incompletely understood. To address this, we conducted a multicohort "basket" study of the BRAF inhibitor vemurafenib in non-melanoma BRAFV600 mutation–positive solid tumors. In total, 172 patients with 26 unique cancer types were treated, achieving an overall response rate of 33% and median duration of response of 13 months. Responses were observed in 13 unique cancer types, including historically treatment-refractory tumor types such as cholangiocarcinoma, sarcoma, glioma, neuroendocrine carcinoma, and salivary gland carcinomas. Collectively, these data demonstrate that single-agent BRAF inhibition has broader clinical activity than previously recognized.

Significance:

These data suggest that BRAFV600 mutations lead to oncogene addiction and are clinically actionable in a broad range of non-melanoma cancers, including tumor types in which RAF inhibition is not currently considered standard of care.

See related commentary by Ribas and Lo, p. 640.

This article is highlighted in the In This Issue feature, p. 627




melanoma

Author Correction: From melanocytes to melanomas





melanoma

L'Oreal Paris and Melanoma Research Alliance (MRA) Unveil It's THAT Worth It To Me, a Public Health Campaign and Social Media Call-to-Action that Drives Melanoma Awareness, Raises Funding for Research and Encourages Sun Protection and Sunless Tann

Eva Longoria :30 English




melanoma

Brisbane father-of-two had melanoma removed from year after doctor told him it was 'nothing serious'

WARNING: GRAPHIC CONTENT -Rob Lindsay, 51, from Brisbane, noticed a small pink patch on the top of his right ear in September 2019 but claims his GP told him it was 'nothing serious'.




melanoma

Dad of woman who died from melanoma slams doctors

Leah Debono, from NSW, lost her battle with the aggressive skin cancer in January this year - three months after her dream wedding to 'soulmate' Ben Debono.




melanoma

Dad's 'sun spot' is a melanoma: doctors remove MASSIVE chunk of skin

WARNING: GRAPHIC CONTENT - The 37-year-old Perth father had a 40cm chunk of his neck gauged out (pictured) in an effort to remove deadly melanoma.




melanoma

AFL WAG Jessie Murphy had a rare eye growth and two melanomas removed 

She's the glamorous wife of AFL star Marc Murphy. But on Tuesday, Jessie Murphy revealed she had a rare eye growth and two melanomas removed in recent years.




melanoma

[ASAP] Artemisinin Derivatives with Antimelanoma Activity Show Inhibitory Effect against Human DNA Topoisomerase 1

ACS Medicinal Chemistry Letters
DOI: 10.1021/acsmedchemlett.0c00131




melanoma

Melanoma Diagnoses Rise While Mortality Stays Fairly Flat, Raising Concerns About Overdiagnosis

This Medical News story examines the question of whether some melanomas might be better left undetected.








melanoma

Prevention of Melanoma With Regular Sunscreen Use

Interview with June K. Robinson, MD, author of Prevention of Melanoma With Regular Sunscreen Use





melanoma

Psychological factors associated with skin cancer detection behaviors in individuals with a family history of melanoma




melanoma

Electrogenetherapy of established B16 murine melanoma by using an expression plasmid for HIV-1 viral protein R




melanoma

Cutaneous melanoma / Charles M. Balch, Michael B. Atkins, Claus Garbe, Jeffrey E. Gershenwald, Allan C. Halpern, John M. Kirkwood, Grant A. McArthur, John F. Thompson, Arthur J. Sober, editors

Online Resource