首页> 外文期刊>Life sciences >Functional role of alpha7 nicotinic receptor in physiological control of cutaneous homeostasis.
【24h】

Functional role of alpha7 nicotinic receptor in physiological control of cutaneous homeostasis.

机译:α7烟碱样受体在皮肤动态平衡的生理控制中的功能作用。

获取原文
获取原文并翻译 | 示例
           

摘要

Non-neuronal nicotinic acetylcholine receptors (nAChRs) are abundantly expressed in skin and their function remains to be elucidated. Herein, we report that cutaneous alpha7 nAChR plays a role in the physiological control of cutaneous homeostasis. We studied in vitro effects of functional inactivation of alpha7 receptor on the expression of apoptosis regulators in keratinocytes (KC) lacking alpha7 nAChR, and extracellular matrix regulators in the skin of alpha7 knockout (KO) mice. Elimination of the alpha7 component of nicotinergic signaling in KC decreased relative amounts of the pro-apoptotic Bad and Bax at both the mRNA and the protein levels, suggesting that alpha7 nAChR is coupled to stimulation of keratinocyte apoptosis. The skin of alpha7 KO mice featured decreased amounts of the extracellular matrix proteins collagen 1alpha1 and elastin as well as the metalloproteinase-1. Taken together, these results suggest an important role for alpha7 nAChR in mediating plethoric effects of non-neuronal acetylcholine on cutaneous homeostasis.
机译:非神经元烟碱乙酰胆碱受体(nAChRs)在皮肤中大量表达,其功能仍有待阐明。在这里,我们报告皮肤alpha7 nAChR在皮肤稳态的生理控制中发挥作用。我们研究了α7受体功能失活对缺乏α7nAChR的角质形成细胞(KC)和α7基因敲除(KO)小鼠皮肤中细胞外基质调节剂的凋亡调节因子表达的体外影响。在KC中消除烟碱能信号传递的alpha7成分可降低mRNA和蛋白质水平上促凋亡Bad和Bax的相对量,这表明alpha7 nAChR与刺激角质形成细胞凋亡相关。 alpha7 KO小鼠的皮肤具有减少的细胞外基质蛋白胶原1alpha1和弹性蛋白以及金属蛋白酶1的数量。综上所述,这些结果表明α7nAChR在介导非神经元乙酰胆碱对皮肤稳态的多种作用中起着重要作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号