ArticleCancer treatment and research communications2024
Targeting transforming growth factor-β1 by methylseleninic acid/seleno-L-methionine in clear cell renal cell carcinoma: Mechanisms and therapeutic potential.
Article in Cancer treatment and research communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Repurposing Seleno-L-Methionine as a Pleiotropic Immunomodulatory Agent to Overcome TGF-β1/HIF-Driven Immune Evasion in Clear Cell Renal Cell Carcinoma: Mechanistic Insights and Translational Therapeutic Opportunities.International journal of molecular sciences · 2026Review
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7 authors.
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Abstract
Clear cell renal cell carcinoma (ccRCC) poses a significant global health challenge as its incidence continues to rise, resulting in a substantial annual mortality rate. Major clinical challenges to current ccRCC treatments include high drug-resistance rates as well as dose-limiting adverse events; underlining the need to identify additional 'druggable' targets. TGF-β1, VEGF, and PD-L1 are potential therapeutic targets in ccRCC. This study analyzed their expression in human ccRCC cell lines and patient tumor biopsies. Data obtained from western blotting demonstrated higher levels of TGF-β1 and PD-L1 and lower levels of VEGF in sarcomatoid ccRCC cell lines compared to non-sarcomatoid ccRCC cell lines. In patient samples, TGF-β1 was significantly upregulated in both non-sarcomatoid and sarcomatoid ccRCC tumors. It was demonstrated through two assays (cellular thermal shift assay and a size exclusion assay) that methylseleninic acid (MSA) binds specifically and directly to TGF-β1. MSA treatment significantly downregulated TGF-β1, PD-L1, and VEGF in a dose- and time-dependent manner in both non-sarcomatoid and sarcomatoid ccRCC cell lines. Seleno-L-methionine (SLM) treatment in a nude mouse xenograft model showed a significant tumor growth inhibition and TGF-β1 downregulation at non-toxic doses. These findings suggest that selenium-mediated downregulation of TGF-β1, PD-L1, and VEGF could be a viable therapeutic strategy for ccRCC.
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