Zinc in Keratinocytes and Langerhans Cells: Relevance to the Epidermal Homeostasis

Zinc in Keratinocytes and Langerhans Cells: Relevance to the Epidermal Homeostasis
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角质形成细胞和朗格汉斯细胞中的锌:与表皮稳态的相关性

DOI:
10.1155/2018/5404093
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发表时间:
2018
影响因子:
4.1
通讯作者:
Kawamura Tatsuyoshi
Kawamura Tatsuyoshi
中科院分区:
医学3区
文献类型:
--
作者:
Ogawa Youichi;Kinoshita Manao;Shimada Shinji;Kawamura Tatsuyoshi

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在皮肤中,表皮不断暴露于各种外界物质和刺激。因此,表皮屏障对于提供保护、维护健康和通过维持皮肤稳态来调节水平衡至关重要。表皮屏障的破坏使得外部物质和刺激物侵入或刺激表皮细胞,导致皮肤炎症。表皮屏障的主要成分是角质层(SC)和紧密连接(TJ)。表皮中锌的存在促进表皮稳态;因此,本研究回顾了锌在 SC 和 TJ 的形成和功能中的作用。朗格汉斯细胞(LC)是表皮中发现的抗原呈递细胞之一。它们与相邻的角质形成细胞 (KC) 形成 TJ,捕获外部抗原,并诱导抗原特异性免疫反应。因此,本综述检查了锌在 LC 中的功能。我们还总结了表皮中锌和锌转运蛋白的一般知识以及最新的发现。
In the skin, the epidermis is continuously exposed to various kinds of external substances and stimuli. Therefore, epidermal barriers are crucial for providing protection, safeguarding health, and regulating water balance by maintaining skin homeostasis. Disruption of the epidermal barrier allows external substances and stimuli to invade or stimulate the epidermal cells, leading to the elicitation of skin inflammation. The major components of the epidermal barrier are the stratum corneum (SC) and tight junctions (TJs). The presence of zinc in the epidermis promotes epidermal homeostasis; hence, this study reviewed the role of zinc in the formation and function of the SC and TJs. Langerhans cells (LCs) are one of the antigen‐presenting cells found in the epidermis. They form TJs with adjacent keratinocytes (KCs), capture external antigens, and induce antigen‐specific immune reactions. Thus, the function of zinc in LCs was examined in this review. We also summarized the general knowledge of zinc and zinc transporters in the epidermis with updated findings.
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