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Primary malignant melanoma of the vagina: A case report of a rare disease that is difficult to diagnose.
Medicine (Baltimore)
January 2025
Department of Obstetrics and Gynecology, Dong-A University, College of Medicine, Busan, Republic of Korea.
Rationale: Malignant melanoma is a rare cancer that accounts for approximately 1% of all cancers. Primary malignant melanoma of the female genital tract accounts for approximately 3% to 7% of all malignant melanomas, and 0.3% to 0.
View Article and Find Full Text PDFScreening the human miRNA interactome reveals coordinated up-regulation in melanoma, adding bidirectional regulation to miRNA networks.
Sci Adv
January 2025
Department of Chemistry, University of Alberta, Edmonton, Canada.
Cellular protein expression is coordinated posttranscriptionally by an intricate regulatory network. The current presumption is that microRNAs (miRNAs) work by repression of functionally related targets within a system. In recent work, up-regulation of protein expression via direct interactions of messenger RNA with miRNA has been found in dividing cells, providing an additional mechanism of regulation.
View Article and Find Full Text PDFPregnancy Complicated by Rapidly Progressing Vulvar Melanoma: A Case Study.
Am J Case Rep
January 2025
Department of Anatomical Pathology, Jenderal Soedirman University, Purwokerto, Central Java, Indonesia.
BACKGROUND Vulvar melanoma during pregnancy is exceptionally rare. Hormonal and immunological changes in pregnancy have raised concerns about the potential for accelerated melanoma progression and poorer maternal outcomes. This case report describes an unusual presentation of vulvar melanoma in a pregnant patient, which rapidly progressed despite previous treatments, but resulted in a favorable fetal outcome.
View Article and Find Full Text PDFThe adaptor protein Miro1 modulates horizontal transfer of mitochondria in mouse melanoma models.
Cell Rep
January 2025
Institute of Biotechnology, Czech Academy of Sciences, 252 50 Prague-West, Czech Republic; Faculty of Science, Charles University, 128 00 Prague, Czech Republic; School of Pharmacy and Medical Science, Griffith University, Southport, QLD 4222, Australia; 1(st) Faculty of Medicine, Charles University, 121 08 Prague, Czech Republic. Electronic address:
Recent research has shown that mtDNA-deficient cancer cells (ρ cells) acquire mitochondria from tumor stromal cells to restore respiration, facilitating tumor formation. We investigated the role of Miro1, an adaptor protein involved in movement of mitochondria along microtubules, in this phenomenon. Inducible Miro1 knockout (Miro1) mice markedly delayed tumor formation after grafting ρ cancer cells.
View Article and Find Full Text PDFNuclear N-WASP Induces Actin Polymerization in the Nucleus with Cortactin as an Essential Factor.
Cells
January 2025
Biotech Research and Innovation Center (BRIC), University of Copenhagen, Ole Maaløes Vej5, 2200 Copenhagen, Denmark.
Nuclear actin polymerization was reported to control different nuclear processes, but its regulation is poorly understood. Here, we show that N-WASP can trigger the formation of nuclear N-WASP/F-actin nodules. While a cancer hotspot mutant of N-WASP lacking the VCA domain (V418fs) had a dominant negative function on nuclear F-actin, an even shorter truncation mutant found in melanoma (R128*) strongly promoted nuclear actin polymerization.
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