Publications by authors named "Haley Noonan"

Article Synopsis
  • * Researchers identified a specific gene, ID1, that plays a critical role in the transformation process by affecting gene expression and the morphology of melanocytes, indicating its contribution to the early stages of melanoma.
  • * The study's findings suggest that there are clinically undetectable precursors to melanoma that exhibit distinct traits and that targeting these precursors could lead to improved methods for early diagnosis and prevention of the disease.
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Article Synopsis
  • Dysregulation of TGFb-related signaling pathways is a common feature in melanoma, leading to unique gene expression patterns in advanced stages of the disease.
  • Researchers identified a specific TGFb enhancer active in melanoma cells, revealing that it is not present in normal or early melanoma cells but shows distinct expression in advanced melanomas.
  • The study suggests that chronic TGFb signaling alters macrophage behavior and emphasizes the importance of developing biomarkers to improve patient responses to TGFb inhibitors.
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Ultraviolet (UV) light and incompletely understood genetic and epigenetic variations determine skin color. Here we describe an UV- and microphthalmia-associated transcription factor (MITF)-independent mechanism of skin pigmentation. Targeting the mitochondrial redox-regulating enzyme nicotinamide nucleotide transhydrogenase (NNT) resulted in cellular redox changes that affect tyrosinase degradation.

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Patients with von Hippel-Lindau (VHL) disease harbor a germline mutation in the VHL gene leading to the development of several tumor types including clear cell renal cell carcinoma (ccRCC). In addition, the VHL gene is inactivated in over 90% of sporadic ccRCC cases. 'Clear cell' tumors contain large, proliferating cells with 'clear cytoplasm', and a reduced number of cilia.

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Patients with a germline mutation in von Hippel-Lindau (VHL) develop renal cell cancers and hypervascular tumors of the brain, adrenal glands, and pancreas as well as erythrocytosis. These phenotypes are driven by aberrant expression of HIF2α, which induces expression of genes involved in cell proliferation, angiogenesis, and red blood cell production. Currently, there are no effective treatments available for VHL disease.

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