Activation of TRPA1 nociceptor promotes systemic adult mammalian skin regeneration.

Activation of TRPA1 nociceptor promotes systemic adult mammalian skin regeneration.
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DOI:
10.1126/sciimmunol.aba5683
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发表时间:
2020-08-28
期刊:
影响因子:
24.8
通讯作者:
Leung TH
Leung TH
中科院分区:
医学1区
文献类型:
--
作者:
Wei JJ;Kim HS;Spencer CA;Brennan-Crispi D;Zheng Y;Johnson NM;Rosenbach M;Miller C;Leung DH;Cotsarelis G;Leung TH

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成年哺乳动物的伤口,除了罕见的例外,会留下严重破坏组织结构和功能的纤维化疤痕。再生医学寻求避免瘢痕形成和恢复原始组织结构的方法。我们发现,在三种成年小鼠模型中,皮肤感觉神经元上的伤害感受器TRPA1的药理激活可以减少疤痕形成,并促进组织再生。值得注意的是,TRPA1的局部激活诱导远处未治疗损伤区域的组织再生,显示出全身效应。激活的TRPA1刺激真皮树突状细胞局部产生IL-23,导致循环真皮产生白细胞介素(IL)-17的γδ T细胞活化。TRPA1、IL-23、真皮树突状细胞或γδ T细胞的基因消融可阻止TRPA1介导的组织再生。这些结果揭示了局部TRPA1激活剂引发的皮肤神经免疫再生级联,促进了成年哺乳动物组织的再生,为伤口和疤痕治疗的研究和开发提供了新的途径。
Adult mammalian wounds, with rare exception, heal with fibrotic scars that severely disrupt tissue architecture and function. Regenerative medicine seeks methods to avoid scar formation and restore the original tissue structures. We show that pharmacologic activation of the nociceptor TRPA1 on cutaneous sensory neurons reduces scar formation and can also promote tissue regeneration in three adult mouse models. Remarkably, local activation of TRPA1 induces tissue regeneration on distant untreated areas of injury, demonstrating a systemic effect. Activated TRPA1 stimulates local production of IL-23 by dermal dendritic cells, leading to activation of circulating dermal interleukin (IL)-17-producing γδ T cells. Genetic ablation of TRPA1, IL-23, dermal dendritic cells, or γδ T cells prevents TRPA1-mediated tissue regeneration. These results reveal a cutaneous neuroimmune-regeneration cascade triggered by topical TRPA1 activators that promotes adult mammalian tissue regeneration, presenting a new avenue for research and development of therapies for wounds and scars.
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