Retrotransposon activation during Drosophila metamorphosis conditions adult antiviral responses.

Retrotransposon activation during Drosophila metamorphosis conditions adult antiviral responses.
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DOI:
10.1038/s41588-022-01214-9
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发表时间:
2022-12
期刊:
影响因子:
30.8
通讯作者:
Zhang, Z. Z. Zhao
Zhang, Z. Z. Zhao
中科院分区:
生物学1区
文献类型:
--
作者:
Wang, Lu;Tracy, Lauren;Su, Weijia;Yang, Fu;Feng, Yu;Silverman, Neal;Zhang, Z. Z. Zhao

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反转录转座子是一种移动的遗传元件,大量存在于几乎所有动物的基因组中。它们不受控制的激活与不育、癌症和其他病理学有关,因此在很大程度上被认为是有害的。在这里,我们报告说,在特定的时间窗口的发展,反转录转座子激活可以许可宿主的免疫系统为未来的抗病毒反应。我们发现mdg 4(也称为Gypsy)反转录转座子在果蝇蛹阶段的变态过程中选择性地变得活跃。在此阶段,mdg 4活化通过以dSTING依赖性方式诱导NF-κB蛋白Relish的系统性抗病毒功能来教育宿主的先天免疫系统。因此,在蛹期沉默mdg 4、Relish或dSTING的成蝇不能清除外源病毒并死于病毒感染。总之,我们的数据表明,主机可以建立一个保护性的抗病毒反应,赋予病原体战争的长期利益,由于发育激活的移动的遗传因素。
Retrotransposons are one type of mobile genetic element that abundantly reside in the genomes of nearly all animals. Their uncontrolled activation is linked to sterility, cancer, and other pathologies, thereby being largely considered detrimental. Here we report that, within a specific time window of development, retrotransposon activation can license the host’s immune system for future antiviral responses. We found the mdg4 (also known as Gypsy) retrotransposon selectively becomes active during metamorphosis at the Drosophila pupal stage. At this stage, mdg4 activation educates the host’s innate immune system by inducing the systemic antiviral function of the NF-κB protein, Relish, in a dSTING-dependent manner. Consequently, adult flies with mdg4, Relish, or dSTING silenced at the pupal stage are unable to clear exogenous viruses and succumb to viral infection. Altogether, our data reveal that hosts can establish a protective antiviral response that endows a long-term benefit in pathogen warfare due to the developmental activation of mobile genetic elements.
激酶IKKβ调节果蝇中的STING和NF-κB依赖性抗病毒反应途径。
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发表时间: 2018-08-21
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影响因子: 32.4
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发表时间: 2017-10-12
期刊: eLife
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发表时间: 2017-07-27
期刊: The New England journal of medicine
影响因子: --
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DOI: 10.1126/scisignal.abc4537
发表时间: 2020-12-01
期刊: SCIENCE SIGNALING
影响因子: 7.3
作者:
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通讯作者: Imler, Jean-Luc
DOI: 10.1038/332164a0
发表时间: 1988-03-10
期刊: NATURE
影响因子: 64.8
作者:
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通讯作者: ANTONARAKIS, SE