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Environmental Earth Sciences

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01-10-2016 | Original Article

Effects of tris(2,3-dibromopropyl) isocyanurate on steroidogenesis in H295R cells

Authors: Xun Li, Yu Pan, Chang Wang, Minjie Chen, Yuchen Liu, Jia Li, Zhen Zhou, Jinhua Xu, Yong Liang, Maoyong Song

Published in: Environmental Earth Sciences | Issue 20/2016

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Abstract

Tris(2,3-dibromopropyl) isocyanurate (TBC) is widely used in polymer products. It is ubiquitously found in environmental matrices. Previous studies have shown that TBC has potential endocrine-disrupting effects on aquatic organisms. However, the effects on adrenocortical function and the underlying mechanisms are not well characterized. In present study, the H295R cell line was employed to investigate the potential endocrine-disrupting action of TBC. TBC inhibited basal and forskolin-induced sex hormone production but did not exhibit cytotoxicity. The expression of the steroidogenic genes, StAR, 3βHSD2, CYP17, CYP21, CYP19, HMGR, 17βHSD1, 17βHSD4 and CYP11A, was not changed upon TBC exposure. However, the cAMP inducer forskolin strongly induced the expression of all these genes, except for HMGR, 17βHSD1 and 17βHSD4. TBC blocked forskolin-induced StAR, 3βHSD2, CYP17, CYP21 and CYP19 mRNA expression. Our results indicate that TBC can inhibit sex hormone biosynthesis due to the interference with steroidogenic gene transcription in activated condition.

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Title: Effects of tris(2,3-dibromopropyl) isocyanurate on steroidogenesis in H295R cells
Authors: Xun Li
Yu Pan
Chang Wang
Minjie Chen
Yuchen Liu
Jia Li
Zhen Zhou
Jinhua Xu
Yong Liang
Maoyong Song
Publication date: 01-10-2016
Publisher: Springer Berlin Heidelberg
Published in: Environmental Earth Sciences / Issue 20/2016
Print ISSN: 1866-6280
Electronic ISSN: 1866-6299
DOI: https://doi.org/10.1007/s12665-016-6166-4

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