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How do male germ cells handle DNA damage?

Abstract：

:Male reproductive health has received considerable attention in recent years. In addition to declining sperm quality, fertility problems and increased incidence of testicular cancer, there is accumulating evidence that genetic damage, in the form of unrepaired DNA lesions or de novo mutations, may be transmitted via sperm to the offspring. Such genetic damage may arise from environmental exposure or via endogenously formed reactive species, in stem cells or during spermatogenesis. Damaged testicular cells not removed by apoptosis rely on DNA repair for their genomic integrity to be preserved. To identify factors with potentially harmful effects on testicular cells and to characterise associated risk, a thorough understanding of repair mechanisms in these cells is of particular importance. Based on results from our own and other laboratories, we discuss the current knowledge of different pathways of excision repair in rodent and human testicular cells. It has become evident that, in human spermatogenic cells, some repair functions are indeed non-functional.

journal_name

Toxicol Appl Pharmacol

journal_title

Toxicology and applied pharmacology

authors

Olsen AK,Lindeman B,Wiger R,Duale N,Brunborg G

doi

10.1016/j.taap.2005.01.060

subject

Has Abstract

pub_date

2005-09-01 00:00:00

pages

521-31

issue

2 Suppl

eissn

0041-008X

issn

1096-0333

pii

S0041-008X(05)00316-9

journal_volume

207

pub_type

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