Early life diet conditions the molecular response to post-weaning protein restriction in the mouse.
Early life diet conditions the molecular response to post-weaning protein restriction in the mouse.
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DOI:
10.1186/s12915-018-0516-5
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发表时间:
2018-05-02
期刊:
影响因子:
5.4
通讯作者:
Rakyan VK
中科院分区:
文献类型:
--
作者:
Danson AF;Marzi SJ;Lowe R;Holland ML;Rakyan VK
Environmental influences fluctuate throughout the life course of an organism. It is therefore important to understand how the timing of exposure impacts molecular responses. Herein, we examine the responses of two key molecular markers of dietary stress, namely variant-specific methylation at ribosomal DNA (rDNA) and small RNA distribution, including tRNA fragments, in a mouse model of protein restriction (PR) with exposure at pre- and/or post-weaning. We first confirm that pre-weaning PR exposure modulates the methylation state of rDNA in a genotype-dependent manner, whereas post-weaning PR exposure has no such effect. Conversely, post-weaning PR induces a shift in small RNA distribution, but there is no effect in the pre-weaning PR model. Intriguingly, mice exposed to PR throughout their lives show neither of these two dietary stress markers, similar to controls. The results show that the timing of the insult affects the nature of the molecular response but also, critically, that ‘matching’ diet exposure either side of weaning eliminates the stress response at the level of rDNA methylation and small RNA in sperm. The online version of this article (10.1186/s12915-018-0516-5) contains supplementary material, which is available to authorized users.
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影响因子:
7.3
作者:
Fernandez-Twinn DS;Constância M;Ozanne SE
通讯作者:
Ozanne SE
影响因子:
11.8
作者:
Shea JM;Serra RW;Carone BR;Shulha HP;Kucukural A;Ziller MJ;Vallaster MP;Gu H;Tapper AR;Gardner PD;Meissner A;Garber M;Rando OJ
通讯作者:
Rando OJ
DOI:
10.1016/j.bbagrm.2016.04.001
发表时间:
2016-07
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Denisenko O;Lucas ES;Sun C;Watkins AJ;Mar D;Bomsztyk K;Fleming TP
通讯作者:
Fleming TP
DOI:
10.1126/science.aaf7040
发表时间:
2016-07-29
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Holland ML;Lowe R;Caton PW;Gemma C;Carbajosa G;Danson AF;Carpenter AA;Loche E;Ozanne SE;Rakyan VK
通讯作者:
Rakyan VK
影响因子:
3.6
作者:
Lillycrop, Karen A.;Phillips, Emma S.;Torrens, Christopher;Hanson, Mark A.;Jackson, Alan A.;Burdge, Graham C.
通讯作者:
Burdge, Graham C.