ArticleBrazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica2015
POD-1/Tcf21 overexpression reduces endogenous SF-1 and StAR expression in rat adrenal cells.
Article in Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 13 citations in OpenAlex.
- Upregulation of TCF21 inhibits migration of adrenocortical carcinoma cells.Discover oncology · 2021Article
- Role of the bHLH transcription factor TCF21 in development and tumorigenesis.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2021Review
- New evidences on the regulation of SF-1 expression by POD1/TCF21 in adrenocortical tumor cells.Clinics (Sao Paulo, Brazil) · 2017Article
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4 authors at 2 institutions in 1 country.
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Abstract
During gonad and adrenal development, the POD-1/capsulin/TCF21transcription factor negatively regulates SF-1/NR5A1expression, with higher SF-1 levels being associated with increased adrenal cell proliferation and tumorigenesis. In adrenocortical tumor cells, POD-1 binds to the SF-1 E-box promoter region, decreasing SF-1 expression. However, the modulation of SF-1 expression by POD-1 has not previously been described in normal adrenal cells. Here, we analyzed the basal expression of Pod-1 and Sf-1 in primary cultures of glomerulosa (G) and fasciculata/reticularis (F/R) cells isolated from male Sprague-Dawley rats, and investigated whether POD-1 overexpression modulates the expression of endogenous Sf-1 and its target genes in these cells. POD-1 overexpression, following the transfection of pCMVMycPod-1, significantly decreased the endogenous levels of Sf-1 mRNA and protein in F/R cells, but not in G cells, and also decreased the expression of the SF-1 target StAR in F/R cells. In G cells overexpressing POD-1, no modulation of the expression of SF-1 targets, StAR and CYP11B2, was observed. Our data showing that G and F/R cells respond differently to ectopic POD-1 expression emphasize the functional differences between the outer and inner zones of the adrenal cortex, and support the hypothesis that SF-1 is regulated by POD-1/Tcf21 in normal adrenocortical cells lacking the alterations in cellular physiology found in tumor cells.
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