Parental olfactory experience influences behavior and neural structure in subsequent generations.

Parental olfactory experience influences behavior and neural structure in subsequent generations.
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DOI:
10.1038/nn.3594
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发表时间:
2014-01
影响因子:
25
通讯作者:
Ressier, Kerry J.
Ressier, Kerry J.
中科院分区:
医学1区
文献类型:
--
作者:
Dias, Brian G.;Ressier, Kerry J.

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利用嗅觉分子特异性,我们研究了父母创伤暴露的遗传,这是一种经常观察到的现象,但还不清楚。我们进行了F0小鼠气味恐惧条件化之前的概念,并发现随后构思的F1和F2代有一个增加的行为敏感性的F0条件化的气味,但不是其他气味。当一种气味(苯乙酮),激活一个已知的气味受体(Olfr 151)被用来调节F0小鼠,行为的敏感性的F1和F2代苯乙酮的补充增强的神经解剖学表示的Olfr 151途径。亚硫酸氢盐测序的精子DNA从条件的F0雄性和F1幼稚后代显示CpG低甲基化的Olfr 151基因。此外,在体外受精,F2遗传和交叉培养表明,这些跨代效应是通过父母配子遗传。我们的研究结果提供了一个框架,以解决如何环境信息可能会在行为,神经解剖学和表观遗传水平上遗传transgenerationally。
Using olfactory molecular specificity, we examined the inheritance of parental traumatic exposure, a phenomenon that has been frequently observed, but not understood. We subjected F0 mice to odor fear conditioning before conception and found that subsequently conceived F1 and F2 generations had an increased behavioral sensitivity to the F0-conditioned odor, but not to other odors. When an odor (acetophenone) that activates a known odorant receptor (Olfr151) was used to condition F0 mice, the behavioral sensitivity of the F1 and F2 generations to acetophenone was complemented by an enhanced neuroanatomical representation of the Olfr151 pathway. Bisulfite sequencing of sperm DNA from conditioned F0 males and F1 naive offspring revealed CpG hypomethylation in the Olfr151 gene. In addition, in vitro fertilization, F2 inheritance and cross-fostering revealed that these transgenerational effects are inherited via parental gametes. Our findings provide a framework for addressing how environmental information may be inherited transgenerationally at behavioral, neuroanatomical and epigenetic levels.
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