Adverse Outcome Pathway on histone deacetylase inhibition leading to testicular atrophy:

The present AOP describes inhibition of histone deacetylase resulting in testicular atrophy. Histone deacetylase inhibitors (HDIs) are approved as anti-cancer drugs since HDIs have apoptotic effects in cancer cells. The intracellular mechanisms of induction of the spermatocyte apoptosis by HDIs are...

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Bibliographic Details
Main Author: Tanabe, Shihori (Author)
Other Authors: Hirose, Akihiko (Contributor), Yamada, Takashi (Contributor)
Format: Electronic eBook
Language:English
Published: Paris OECD Publishing 2021
Series:OECD Series on Adverse Outcome Pathways
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Online Access:Volltext
Summary:The present AOP describes inhibition of histone deacetylase resulting in testicular atrophy. Histone deacetylase inhibitors (HDIs) are approved as anti-cancer drugs since HDIs have apoptotic effects in cancer cells. The intracellular mechanisms of induction of the spermatocyte apoptosis by HDIs are suggested as histone deacetylase (HDAC) inhibition as MIE, histone acetylation increase, disrupted cell cycle, apoptosis, and spermatocyte depletion as KEs. The adverse outcome has been defined as testicular atrophy. The HDIs inhibit deacetylation of the histone, leading to an increase in histone acetylation. The apoptosis induced by disrupted cell cycle leads to spermatocyte depletion and testis atrophy. Testicular toxicity is of interest for human health risk assessment especially in terms of reproductive and developmental toxicity, however, the testicular toxicity has not been fully elucidated. This AOP may be one of the pathways induced by HDIs, which suggests the pathway networks of protein hyperacetylations
Physical Description:1 Online-Ressource (64 Seiten)
DOI:10.1787/b9c4bdb2-en

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