Induced Pluripotent Stem Cells Attenuate Acute Lung Injury Induced by Ischemia Reperfusion via Suppressing the High Mobility Group Box-1.

Induced Pluripotent Stem Cells Attenuate Acute Lung Injury Induced by Ischemia Reperfusion via Suppressing the High Mobility Group Box-1.
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DOI:
10.1177/1559325820969340
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发表时间:
2020-10
期刊:
Dose-response : a publication of International Hormesis Society
影响因子:
--
通讯作者:
Xiang M
Xiang M
中科院分区:
其他
文献类型:
--
作者:
Li Y;Wang S;Liu J;Li X;Lu M;Wang X;Ren Y;Li X;Xiang M

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肺内皮细胞损伤是急性肺损伤的标志。高迁移率族蛋白1(HMGB 1)可通过激活内皮细胞和释放炎性分子来调节炎症反应。因此,我们测试了诱导的多能干细胞(iPSC)是否可以减轻缺血/再灌注(I/R)诱导的肺损伤,如果是这样,HMGB 1是否介导雄性C57 BL/6小鼠模型中的作用。I/R后2 h,将iPSC注射到小鼠体内,显示再灌注后24 h(与对照组相比)肺损伤显著减轻(通过肺力学、水肿和组织学评估),沿着HMGB 1、磷酸化核因子-κB、炎性细胞因子[白细胞介素(IL)1β、IL 6和肿瘤坏死因子-α]以及内皮细胞活化的减少。此外,iPSC的这些作用可以通过在体内和体外用抑制剂阻断HMGB 1来模拟。我们的结论是,iPSCs可以是一个潜在的治疗I/R诱导的肺损伤。这些细胞可能通过阻断HMGB 1和炎性细胞因子发挥治疗作用。
Pulmonary endothelial cell injury is a hallmark of acute lung injury. High-mobility group box 1 (HMGB1) can modulate the inflammatory response via endothelial cell activation and release of inflammatory molecules. Thus, we tested whether induced pluripotent stem cells (iPSCs) can alleviate ischemia/reperfusion (I/R) induced lung injury, and, if so, whether HMGB1 mediates the effect in a male C57BL/6 mouse model. Intravenously injected iPSCs into mice 2 h after I/R showed a significant attenuation of lung injury (assessed by lung mechanics, edema, and histology) 24 h after reperfusion (compared with controls), along with decreases in HMGB1, phosphorylated nuclear factor-κB, inflammatory cytokines [interleukin (IL)1β, IL6 and tumor necrosis factor-α], and the activation of endothelial cells. Furthermore, these effects of iPSCs can be mimicked by blocking HMGB1 with an inhibitor in vivo and in vitro. We conclude that iPSCs can be a potential therapy for I/R-induced lung injury. These cells may exert therapeutic effects through blocking HMGB1 and inflammatory cytokines.
通过呼吸机诱导的肺损伤在小鼠中诱导多能干细胞疗法抑制NF-κB和NKRF途径。
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