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| http://dx.doi.org/10.1111/cup.12625 | DOI Listing |
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PTPN23-dependent activation of PI3KC2α is a therapeutic vulnerability of BRAF-mutant cancers.
J Exp Med
March 2025
Institute of Cancer Research, Shenzhen Bay Laboratory , Shenzhen, China.
BRAF mutations drive initiation and progression of various tumors. While BRAF inhibitors are effective in BRAF-mutant melanoma patients, intrinsic or acquired resistance to these therapies is common. Here, we identify non-receptor-type protein tyrosine phosphatase 23 (PTPN23) as an alternative effective target in BRAF-mutant cancer cells.
View Article and Find Full Text PDFCo-isolation of human donor eye cells and development of oncogene-mutated melanocytes to study uveal melanoma.
BMC Biol
January 2025
Cancer Research Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.
Background: Uveal melanoma (UM) is the most common intraocular tumor in adults, arises either de novo from normal choroidal melanocytes (NCMs) or from pre-existing nevi that stem from NCMs and are thought to harbor UM-initiating mutations, most commonly in GNAQ or GNA11. However, there are no commercially available NCM cell lines, nor is there a detailed protocol for developing an oncogene-mutated CM line (MutCM) to study UM development. This study aimed to establish and characterize premalignant CM models from human donor eyes to recapitulate the cell populations at the origin of UM.
View Article and Find Full Text PDFDual role of Cathepsin S in cutaneous melanoma: insights from mendelian randomization and bioinformatics analysis.
BMC Cancer
January 2025
Department of Otolaryngology, Ruian People's Hospital), The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China.
Background: Cutaneous melanoma (CM) is strongly associated with ultraviolet (UV) radiation, which contributes to the transformation of melanocytes into melanoma by inducing specific DNA damage. Here, we investigated the causal relationship between CM and genes related to sun-damaged skin, exploring specific target genes through various bioinformatics analyses.
Methods: The Gene Expression Omnibus (GEO) database was used to obtain differential genes for CM and normal skin, and the Genome-Wide Association Studies (GWAS) analysis offered summary-level melanoma data for CM.
Cryoblebbing with 5-fluorouracil versus cryoblebbing with melanocyte keratinocyte transplant procedure or cryoblebbing alone in treatment of stable vitiligo.
Arch Dermatol Res
January 2025
Dermatology and Venereology Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt.
Both the surgical non-cultured melanocyte-keratinocyte transplant procedure (MKTP) and intradermal injection of 5-Fluorouracil (5-FU) are effective in the treatment of vitiligo. Intrablisters injection of MKTP was done in one study with better results than MKTP application after ablative CO2 laser of the reciepient area. However, intrablister injection of 5-FU was not done before.
View Article and Find Full Text PDFDiscordance, accuracy and reproducibility study of pathologists' diagnosis of melanoma and melanocytic tumors.
Nat Commun
January 2025
Digital Biomarkers for Oncology Group, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Accurate melanoma diagnosis is crucial for patient outcomes and reliability of AI diagnostic tools. We assess interrater variability among eight expert pathologists reviewing histopathological images and clinical metadata of 792 melanoma-suspicious lesions prospectively collected at eight German hospitals. Moreover, we provide access to the largest panel-validated dataset featuring dermoscopic and histopathological images with metadata.
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