An aging-susceptible circadian rhythm controls cutaneous antiviral immunity.

An aging-susceptible circadian rhythm controls cutaneous antiviral immunity.
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衰老敏感的昼夜节律控制皮肤抗病毒免疫。

DOI:
10.1172/jci.insight.171548
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发表时间:
2023-10-23
期刊:
影响因子:
8
通讯作者:
Zhang, Jennifer Y.
Zhang, Jennifer Y.
中科院分区:
医学1区
文献类型:
--
作者:
Kirchner, Stephen J.;Lei, Vivian;Kim, Paul T.;Patel, Meera;Shannon, Jessica L.;Corcoran, David;Hughes, Dalton;Waters, Diana K.;Dzirasa, Kafui;Erdmann, Detlev;Coers, Jorn;MacLeod, Amanda S.;Zhang, Jennifer Y.

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衰老的皮肤容易受到病毒感染,但导致这种免疫衰老免疫风险的机制尚不清楚。我们观察到,老年小鼠和人类皮肤中抗病毒蛋白(AVPs)以及生物钟调节因子(包括Bmal1和Clock)的表达水平降低。发现Bmal1和Clock可控制皮肤中AVP的节律性表达,并且在小鼠皮肤中免疫细胞IL - 27信号传导中断以及Bmal1/Clock基因缺失,以及在人原代角质形成细胞中通过小干扰RNA介导的CLOCK敲低,都会减弱这种对AVP的生物钟控制。我们发现,用生物钟增强剂川陈皮素和SR8278进行治疗,能以依赖BMAL1/CLOCK的方式减少单纯疱疹病毒1在表皮外植体和人角质形成细胞中的感染。生物钟增强治疗还逆转了衰老小鼠皮肤和人原代角质形成细胞对病毒感染的易感性。这些发现揭示了皮肤抗病毒免疫存在一种在进化上保守且对年龄敏感的生物钟调节,强调了生物钟修复可作为老龄人群的一种抗病毒策略。
Aged skin is prone to viral infections, but the mechanisms responsible for this immunosenescent immune risk are unclear. We observed that aged murine and human skin expressed reduced levels of antiviral proteins (AVPs) and circadian regulators, including Bmal1 and Clock. Bmal1 and Clock were found to control rhythmic AVP expression in skin, and such circadian control of AVPs was diminished by disruption of immune cell IL-27 signaling and deletion of Bmal1/Clock genes in mouse skin, as well as siRNA-mediated knockdown of CLOCK in human primary keratinocytes. We found that treatment with the circadian-enhancing agents nobiletin and SR8278 reduced infection of herpes simplex virus 1 in epidermal explants and human keratinocytes in a BMAL1/CLOCK-dependent manner. Circadian-enhancing treatment also reversed susceptibility of aging murine skin and human primary keratinocytes to viral infection. These findings reveal an evolutionarily conserved and age-sensitive circadian regulation of cutaneous antiviral immunity, underscoring circadian restoration as an antiviral strategy in aging populations.
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