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Extracellular HSPs: The Complicated Roles of Extracellular HSPs in Immunity

机译:细胞外热休克蛋白:细胞外热休克蛋白在免疫中的复杂作用

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摘要

Extracellular heat-shock proteins (HSPs) interact with the immune system in a very complex manner. Many such HSPs exert powerful effects on the immune response, playing both stimulatory and regulatory roles. However, the influence of the HSPs on immunity appears to be positive or negative in nature – rarely neutral. Thus, the HSPs can act as dominant antigens and can comprise key components of antitumor vaccines. They can also function as powerful immunoregulatory agents and, as such, are employed to treat inflammatory diseases or to extend the lifespan of tissue transplants. Small modifications in the cellular milieu have been shown to flip the allegiances of HSPs from immunoregulatory agents toward a potent inflammatory alignment. These mutable properties of HSPs may be related to the ability of these proteins to interact with multiple receptors often with mutually confounding properties in immune cells. Therefore, understanding the complex immune properties of HSPs may help us to harness their potential in treatment of a range of conditions.
机译:细胞外热休克蛋白(HSP)以非常复杂的方式与免疫系统相互作用。许多此类HSP对免疫反应产生强大的作用,同时起到刺激和调节作用。但是,HSP对免疫的影响在本质上似乎是正面的或负面的-很少是中性的。因此,HSP可以充当优势抗原,并且可以包含抗肿瘤疫苗的关键成分。它们还可以起到强大的免疫调节剂的作用,因此可以用于治疗炎症性疾病或延长组织移植的寿命。在细胞环境中的小修饰已显示出将HSP的效忠从免疫调节剂转变为有效的炎症排列。 HSP的这些可变特性可能与这些蛋白质与多个受体相互作用的能力有关,而这些受体通常在免疫细胞中具有相互混淆的特性。因此,了解HSP的复杂免疫特性可能有助于我们利用其在一系列疾病治疗中的潜力。

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