Exosomes, DAMPs and miRNA: Features of Stress Physiology and Immune Homeostasis.

Exosomes, DAMPs and miRNA: Features of Stress Physiology and Immune Homeostasis.
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DOI:
10.1016/j.it.2017.08.002
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发表时间:
2017-10
影响因子:
16.8
通讯作者:
Crane CR
Crane CR
中科院分区:
医学1区
文献类型:
--
作者:
Fleshner M;Crane CR

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在没有致病性疾病的情况下,心理/身体压力源和局部组织损伤会增加人类和动物组织和血液中的炎症蛋白。压力诱发的细胞因子/趋化因子反应或“无菌炎症”,可以促进宿主生存和/或对健康产生负面影响,具体取决于具体情况。最近的证据支持这样的假设,即全身应激诱发的无菌性炎症是由交感神经系统引发的,导致外泌体相关的免疫刺激内源性危险/损伤相关分子模式(DAMP)升高,并减少在循环中携带到全身组织的免疫抑制性微小RNA(miRNA)。我们建议,无菌炎症应被视为应激反应的基本特征,并且运输免疫调节信号的循环外泌体可能在免疫稳态中发挥重要作用。
Psychological/physical stressors and local tissue damage increase inflammatory proteins in tissues and blood in humans and animals, in the absence of pathogenic disease. Stress-evoked cytokine/chemokine responses or “sterile inflammation”, can facilitate host survival and/or negatively impact health, depending on context. Recent evidence supports the hypothesis that systemic stress-evoked sterile inflammation is initiated by the sympathetic nervous system, resulting in the elevation of exosome-associated immune-stimulatory endogenous danger/damage associated molecular patterns (DAMPs) and a reduction in immune-inhibitory microRNA (miRNA) which are carried in the circulation to tissues throughout the body. We propose that sterile inflammation should be considered an elemental feature of the stress response and that circulating exosomes transporting immune- modulatory signals, may play a role fundamental role in immune homeostasis.
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