MMP-7 affects peritoneal ultrafiltration associated with elevated aquaporin-1 expression via MAPK/ERK pathway in peritoneal mesothelial cells.

MMP-7 affects peritoneal ultrafiltration associated with elevated aquaporin-1 expression via MAPK/ERK pathway in peritoneal mesothelial cells.
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MMP-7 通过腹膜间皮细胞中的 MAPK/ERK 通路影响与水通道蛋白-1 表达升高相关的腹膜超滤

DOI:
10.1111/jcmm.16697
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发表时间:
2021-07
影响因子:
5.3
通讯作者:
Ai J
Ai J
中科院分区:
医学2区
文献类型:
--
作者:
Yin Y;Zhang F;Zheng Z;Xiao Z;Yang Q;Gong N;Zhou J;Zuo D;Ai J

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腹膜功能障碍和由此导致的超滤失败是长期腹膜透析(PD)的主要缺点。间皮细胞在腹膜病理生理变化中起着至关重要的作用,这一点越来越清楚。基质金属蛋白酶(MMPs)在细胞的细胞外环境中起作用,并在腹膜稳态过程中介导细胞外基质的转换。我们在这里发现透析液MMP‐7水平在PD患者中显著升高,并且MMP‐7水平升高与腹膜超滤量呈负相关。有趣的是,MMP‐7可以调节人腹膜间皮细胞的渗透压和体积。此外,我们提供的证据表明,MMP‐7激活丝裂原活化蛋白激酶(MAPKs) -细胞外信号调节激酶1/2 (ERK)通路,随后促进水通道蛋白- 1 (AQP‐1)的表达,导致细胞渗透压的变化。使用ERK通路的特异性抑制剂可以消除MMP - 7介导的AQP - 1上调和细胞稳态。综上所述,所有的研究结果表明,MMP‐7可以调节PD患者的腹腔活动,透析液MMP‐7可能是一种非侵入性的生物标志物和超滤失败PD患者的替代治疗靶点。
Peritoneal membrane dysfunction and the resulting ultrafiltration failure are the major disadvantages of long‐term peritoneal dialysis (PD). It becomes increasingly clear that mesothelial cells play a vital role in the pathophysiological changes of the peritoneal membrane. Matrix metalloproteinases (MMPs) function in the extracellular environment of cells and mediate extracellular matrix turnover during peritoneal membrane homeostasis. We showed here that dialysate MMP‐7 levels markedly increased in the patients with PD, and the elevated MMP‐7 level was negatively associated with peritoneal ultrafiltration volume. Interestingly, MMP‐7 could regulate the cell osmotic pressure and volume of human peritoneal mesothelial cells. Moreover, we provided the evidence that MMP‐7 activated mitogen‐activated protein kinases (MAPKs)‐extracellular signal‐regulated kinase 1/2 (ERK) pathway and subsequently promoted the expression of aquaporin‐1 (AQP‐1) resulting in the change of cell osmotic pressure. Using a specific inhibitor of ERK pathway abrogated the MMP‐7‐mediating AQP‐1 up‐regulation and cellular homeostasis. In summary, all the findings indicate that MMP‐7 could modulate the activity of peritoneal cavity during PD, and dialysate MMP‐7 might be a non‐invasive biomarker and an alternative therapeutic target for PD patients with ultrafiltration failure.
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