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.
复制标题

DOI:
10.1186/s12915-018-0516-5
复制
发表时间:
2018-05-02
期刊:
影响因子:
5.4
通讯作者:
Rakyan VK
Rakyan VK
中科院分区:
生物学2区
文献类型:
--
作者:
Danson AF;Marzi SJ;Lowe R;Holland ML;Rakyan VK

文献摘要

参考文献

被引文献

相似文献

环境影响在有机体的整个生命过程中是波动的。因此,重要的是要了解暴露的时间如何影响分子反应。在此,我们研究了饮食应激的两个关键分子标志物的反应,即核糖体DNA(rDNA)和小RNA分布(包括tRNA片段)的变异特异性甲基化,在蛋白质限制(PR)的小鼠模型中,在断奶前和/或断奶后暴露。我们首先确认,断奶前PR曝光调制基因型依赖的方式rDNA的甲基化状态,而断奶后PR曝光没有这样的效果。相反,断奶后PR诱导小RNA分布的转变,但在断奶前PR模型中没有影响。有趣的是,与对照组相似,一生中暴露于PR的小鼠没有显示出这两种饮食应激标志物。结果表明,损伤的时间影响分子反应的性质,但关键的是,断奶两侧的“匹配”饮食暴露消除了精子中rDNA甲基化和小RNA水平的应激反应。本文的在线版本(10.1186/s12915-018-0516-5)包含补充材料,可供授权用户使用。
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.
DOI: 10.1016/j.semcdb.2015.06.006
发表时间: 2015-07
影响因子: 7.3
作者:
Fernandez-Twinn DS;Constância M;Ozanne SE
通讯作者: Ozanne SE
DOI: 10.1016/j.devcel.2015.11.024
发表时间: 2015-12-21
期刊: Developmental cell
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
DOI: 10.1017/s0007114507894438
发表时间: 2008-08
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.