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    Germ Cell Responses to Doxorubicin Exposure in Vitro

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    habas_anderson_brinkworth_2016.pdf (585.0Kb)
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    Publication date
    2017-01-04
    Author
    Habas, Khaled S.A.
    Anderson, Diana
    Brinkworth, Martin H.
    Keyword
    DNA damage; apoptosis; doxorubicin; Comet assay; TUNEL assay; male germ cells
    Rights
    © 2016 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
    Peer-Reviewed
    Yes
    
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    Abstract
    Anthracyclines such as doxorubicin (Dox), widely used to treat various types of tumours, may result in induced testicular toxicity and oxidative stress. The present investigation was designed to determine whether exposure of isolated and purified mouse germ cells to Dox induces DNA damage in the form of strand breaks (presumably) resulting in apoptosis and to investigate the relative sensitivity of specific cell types. DNA damage was assessed using the Comet assay and the presence of apoptosis was determined by TUNEL assay. Isolated mouse germ cells were treated with different concentrations (0.05, 0.5 and 1 mM, respectively) of Dox, and fixed 1 h after treatment. The incidences of both DNA damage shown by single cell gel-electrophoresis and of apoptosis increased significantly in each specific cell type in a concentration-dependent manner. The DNA damage and apoptosis incidences gradually increased with concentration from 0.05 to 1 mM with Dox. Our results indicate that apoptosis plays a vital role in the induction of germ cell phase-specific toxicity caused by Dox with pre-meiotically and meiotically dividing spermatogonia and spermatocytes respectively as highly susceptible target cells.
    URI
    http://hdl.handle.net/10454/10685
    Version
    Accepted Manuscript
    Citation
    Habas K, Anderson D and Brinkworth MH (2016) Germ Cell Responses to Doxorubicin Exposure in Vitro. Toxicology Letters. 265: 70-76.
    Link to publisher’s version
    http://dx.doi.org/10.1016/j.toxlet.2016.11.016
    Type
    Article
    Collections
    Life Sciences Publications

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