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Perturbation of epigenetic processes by doxorubicin in the mouse testis

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Toxicology Research Vol - 5 Issue - 3

Toxicology Research Vol - 5 Issue - 2

Toxicology Research Vol - 5 Issue - 1

Toxicology Research Vol -4

Toxicology Research Vol -3

Toxicology Research Vol -2

Toxicology Research Vol -1

Perturbation of epigenetic processes by doxorubicin in the mouse testis

Content Provider	Royal Society of Chemistry (RSC)
Author	Akinjo, Oluwajoba O. Marczylo, Emma L. Gant, Timothy W.
Copyright Year	2016
Abstract	Epigenetic processes play a major role in normal mammalian development, particularly during gametogenesis and early embryogenesis. Thus, perturbation of epigenetic processes in the testis by xenobiotics could have a major impact on testicular function and fertility, and potentially affect the development and health of subsequent generations. There has been substantial research into the epigenetic toxicity of environmental exposures over the last decade. However, few studies have focussed on pharmaceutical drugs, which due to the nature of their use are typically found at much higher concentrations within exposed individuals than environmental chemicals. Here, we investigated genome-wide changes in testicular mRNA transcription, microRNA expression and DNA methylation to assess the contribution of epigenetic mechanisms to the testicular toxicity induced by doxorubicin (DOX) as a representative, widely used and well-characterised anti-cancer drug. We demonstrated that DOX is able to induce transcriptional, microRNA and DNA methylation changes, which perturb pathways involved in stress/cell death and survival and testicular function and lead to germ cell loss and reproductive organ damage. This identified potential novel mechanisms of DOX-induced testicular toxicity for further focussed investigations. Such work is required to fully assess the role of epigenetics in toxicity, determine whether single and/or multigenerational epigenetic toxicity is a real public health concern, and begin to develop and incorporate relevant epigenetic endpoints into regulatory toxicology.
Starting Page	1229
Ending Page	1243
Page Count	15
File Format	HTM / HTML PDF
ISSN	2045452X
Volume Number	5
Issue Number	4
Journal	Toxicology Research
DOI	10.1039/c6tx00078a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Germ cell Embryogenesis Toxicology Messenger RNA MicroRNA Gametogenesis Epigenetics DNA methylation Independent Community and Health Concern Testicle Doxorubicin
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Toxicology

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