1. Regulatory and junctional proteins of the blood-testis barrier in human Sertoli cells are modified by monobutyl phthalate (MBP) and bisphenol A (BPA) exposure.
- Author
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de Freitas ATAG, Ribeiro MA, Pinho CF, Peixoto AR, Domeniconi RF, and Scarano WR
- Subjects
- Antigens, CD metabolism, Blood-Testis Barrier drug effects, Blood-Testis Barrier metabolism, Cadherins metabolism, Cell Line, Cell Survival drug effects, Humans, Male, Occludin metabolism, Sertoli Cells metabolism, Spermatogenesis, Zonula Occludens-1 Protein metabolism, beta Catenin metabolism, Benzhydryl Compounds toxicity, Endocrine Disruptors toxicity, Phenols toxicity, Phthalic Acids toxicity, Sertoli Cells drug effects
- Abstract
The blood-testis barrier (BTB) is responsible for providing a protected environment and coordinating the spermatogenesis. Endocrine disruptors (EDs) might lead to infertility, interfering in the BTB structure and modulation. This study aimed to correlate the actions of two EDs, monobutyl phthalate (MBP) and bisphenol A (BPA) in different periods of exposure, in a low toxicity dose to the human Sertoli cells (HSeC) and its effects on the proteins of the BTB and regulatory proteins involved in its modulation. HSeC cells were exposed to MBP (10μM) and BPA (20μM) for 6 and 48h. Western Blot assay indicated that MBP was able to reduce the expression of occludin, ZO-1, N-cadherin and Androgen Receptor (AR), while BPA leads to a reduction of occludin, ZO-1, β-catenin and AR. TGF-β2 and F-actin were not modified. Phalloidin and Hematoxylin and Eosin assay revealed phenotically disruption in Sertoli cells adhesion, without changes in F-actin expression or localization. Our data suggested both EDs present potential for disrupting the structure and maintenance of the human BTB by AR dependent pathway., (Copyright © 2016. Published by Elsevier Ltd.) more...
- Published
- 2016
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