cDNA microarray analysis reveals chop-10 plays a key role in Sertoli cell injury induced by bisphenol A |
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Authors: | Tabuchi Yoshiaki Kondo Takashi |
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Affiliation: | Division of Molecular Genetics, Life Science Research Center, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama City, Toyama 930-0194, Japan. ytabu@ms.toyama-mpu.ac.jp |
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Abstract: | We examined the time course of changes in gene expression in detail using cDNA microarray analysis of mouse Sertoli TTE3 cells treated with bisphenol A (BPA). A subtoxic dose of BPA (200 microM) transiently increased intracellular Ca(2+) concentration and time-dependently induced an increase in mRNA level of 78-kDa glucose-regulated protein, indicating that BPA induces endoplasmic reticulum stress. Of the 865 genes analyzed, 31 genes showed increased levels of expression. TaqMan analysis confirmed that the mRNA levels of chop-10, fra-2, c-myc, and ornithine decarboxylase were increased, and showed that chop-10 is the most sensitive gene. The expression level of chop-10 protein and cell injury induced by BPA were significantly reduced in stable TTE3 cells overexpressing full-length chop-10 antisense RNA. We conclude that chop-10 plays a key role in Sertoli cell injury induced by BPA. |
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Keywords: | Bisphenol A cDNA microarray Sertoli cell Cell injury Gene expression chop-10 |
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