Gamete imprinting: setting epigenetic patterns for the next generation

被引:88
作者
Trasler, JM [1 ]
机构
[1] McGill Univ, Montreal Childrens Hosp, Inst Res, Montreal, PQ, Canada
[2] McGill Univ, Dept Pediat, Montreal, PQ H3A 2T5, Canada
[3] McGill Univ, Dept Human Genet, Montreal, PQ H3A 2T5, Canada
[4] McGill Univ, Dept Therapeut & Pharmacol, Montreal, PQ H3A 2T5, Canada
关键词
assisted reproductive technologies; DNA methylation; embryogenesis; genomic imprinting; germ cells; human; mouse; oogenesis; spermatogenesis;
D O I
10.1071/RD05118
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The acquisition of genomic DNA methylation patterns, including those important for development, begins in the germ line. In particular, imprinted genes are differentially marked in the developing male and female germ cells to ensure parent-of-origin-specific expression in the offspring. Abnormalities in imprints are associated with perturbations in growth, placental function, neurobehavioural processes and carcinogenesis. Based, for the most part, on data from the well-characterised mouse model, the present review will describe recent studies on the timing and mechanisms underlying the acquisition and maintenance of DNA methylation patterns in gametes and early embryos, as well as the consequences of altering these patterns.
引用
收藏
页码:63 / 69
页数:7
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