Multifaceted immune functions of human defensins and underlying mechanisms.

Multifaceted immune functions of human defensins and underlying mechanisms.
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人防御素和潜在机制的多方面免疫功能。

DOI:
10.1016/j.semcdb.2018.02.023
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发表时间:
2019-04
影响因子:
7.3
通讯作者:
Chang TL
Chang TL
中科院分区:
生物学2区
文献类型:
--
作者:
Fruitwala S;El-Naccache DW;Chang TL

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防御素是一种天然抗菌肽,具有多种多样的免疫功能。防御素通过不同的机制作用于特定的细胞,既能诱导炎症反应,又能抑制炎症反应。防御素还可以通过与包括蛋白质、核酸和碳水化合物的细胞分子形成复合物来调节免疫应答。防御素介导的免疫调节机制似乎是细胞类型和环境特异性的。由于人类防御素的水平往往会改变感染或疾病状态,表明其临床意义,本文综述了人类防御素的复杂免疫功能及其潜在的作用机制,这对开发新的治疗方法具有重要意义。
Defensins have been long recognized as natural antimicrobial peptides, but they also possess diverse and versatile immune functions. Defensins can both induce inflammation and suppress inflammatory responses by acting on specific cells through distinct mechanisms. Defensins can also modulate the immune response by forming a complex with cellular molecules including proteins, nucleic acids, and carbohydrates. The mechanisms of defensin-mediated immune modulation appear to be cell-type and context specific. Because the levels of human defensins are often altered in response to infection or disease states, suggesting their clinical relevance, this review summarizes the complex immune functions of human defensins and their underlying mechanisms of action, which have implications for the development of new therapeutics.
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