Title : Endocrine disrupter bisphenol a induces orphan nuclear receptor Nur77 gene expression and steroidogenesis in mouse testicular Leydig cells.

Pub. Date : 2002 Jun

PMID : 12021184






12 Functional Relationships(s)
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1 Endocrine disrupter bisphenol a induces orphan nuclear receptor Nur77 gene expression and steroidogenesis in mouse testicular Leydig cells. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
2 The aim of the current study was to investigate the potential role of bisphenol A (BPA) on orphan nuclear receptor Nur77 gene expression and steroidogenesis. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
3 The aim of the current study was to investigate the potential role of bisphenol A (BPA) on orphan nuclear receptor Nur77 gene expression and steroidogenesis. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
4 Northern blot analysis demonstrated that BPA transiently induced Nur77 mRNA expression, and protein kinase inhibitor H-89 and PD98059 strongly inhibited the induction of BPA-mediated Nur77 gene expression in mouse Leydig tumor cell line, K28. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
5 Northern blot analysis demonstrated that BPA transiently induced Nur77 mRNA expression, and protein kinase inhibitor H-89 and PD98059 strongly inhibited the induction of BPA-mediated Nur77 gene expression in mouse Leydig tumor cell line, K28. 2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one nuclear receptor subfamily 4, group A, member 1 Mus musculus
6 Northern blot analysis demonstrated that BPA transiently induced Nur77 mRNA expression, and protein kinase inhibitor H-89 and PD98059 strongly inhibited the induction of BPA-mediated Nur77 gene expression in mouse Leydig tumor cell line, K28. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
7 Transient transfection assay demonstrated that BPA increased Nur77 gene promoter activity and Nur77 transactivation, whereas BPA did not significantly affect the interaction of Nur77 with its corepressor. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
8 Transient transfection assay demonstrated that BPA increased Nur77 gene promoter activity and Nur77 transactivation, whereas BPA did not significantly affect the interaction of Nur77 with its corepressor. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
9 Transient transfection assay demonstrated that BPA increased Nur77 gene promoter activity and Nur77 transactivation, whereas BPA did not significantly affect the interaction of Nur77 with its corepressor. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
10 Furthermore, BPA increased progesterone biosynthesis in K28 cells, which was suppressed by overexpression of dominant negative Nur77. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
11 Finally, BPA injection to prepubertal mice revealed that the expression of Nur77 mRNA was elevated, and this induction was correlated with increased concentration of testicular T in vivo. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus
12 Taken together, these results demonstrated that BPA induces Nur77 gene expression and subsequently alters the steroidogenesis in testicular Leydig cells. bisphenol A nuclear receptor subfamily 4, group A, member 1 Mus musculus