ArticleLaboratory investigation; a journal of technical methods and pathology2025
PRAME Expression in Melanoma is Negatively Regulated by TET2-Mediated DNA Hydroxymethylation.
Article in Laboratory investigation; a journal of technical methods and pathology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- DNA hypomethylation-activated PRAME drives early-stage lung adenocarcinoma recurrence via ZNF740 and PI3K/AKT/mTOR signaling.Translational lung cancer research · 2026Article
- Epigenetics of Malignant Melanoma: Mechanisms, Diagnostic Approaches and Therapeutic Applications.Oncology research · 2026Review
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15 authors.
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Abstract
Preferentially expressed Antigen in Melanoma (PRAME) and Ten-Eleven Translocation (TET) dioxygenase-mediated 5-hydroxymethylcytosine (5hmC) are emerging melanoma biomarkers. We observed an inverse correlation between PRAME expression and 5hmC levels in benign nevi, melanoma in situ, primary invasive melanoma, and metastatic melanomas via immunohistochemistry and multiplex immunofluorescence: nevi exhibited high 5hmC and low PRAME, whereas melanomas showed the opposite pattern. Single-cell multiplex imaging of melanoma precursors revealed that diminished 5hmC coincides with PRAME upregulation in premalignant cells. Analysis of The Cancer Genome Atlas and Genotype-Tissue Expression databases confirmed a negative relationship between TET2 and PRAME messenger RNA expression in melanoma. Additionally, 5hmC levels were reduced at the PRAME 5' promoter in melanoma compared with nevi, suggesting a role for 5hmC in PRAME transcription. Restoring 5hmC levels via TET2 overexpression notably reduced PRAME expression in melanoma cell lines. These findings establish a function of TET2-mediated DNA hydroxymethylation in regulating PRAME expression and demonstrate epigenetic reprogramming as pivotal in melanoma tumorigenesis.
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