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Author:
Date:
2020-10-05
[Abstract] Growing evidences suggest that peritubular capillaries pericytes are the main source of scar-forming myofibroblasts during chronic kidney disease (CKD), as well as early phases of acute kidney injury (AKI). In a swine model of sepsis and I/R (Ischemia Reperfusion) injury-induced AKI we demonstrated that renal pericytes are able to transdifferentiate toward α-SMA+ myofibroblasts leading to interstitial fibrosis. Even if precise pericytes identification requires transmission electron microscopy and the co-immunostaining of several markers (i.e., Gli, NG2 chondroitin sulphate proteoglycan, CD146, desmin or CD73) and emerging new markers (CD248 or TEM1, endosialin), previous studies suggested that PDGFR-β could be used as marker for renal pericytes characterization. ...
[摘要] [摘要]越来越多的证据表明，肾小管周围的毛细血管周细胞是慢性肾脏病（CKD）以及急性肾损伤（AKI）早期形成疤痕的成纤维细胞的主要来源。在败血症和I / R（缺血再灌注）损伤诱导的AKI的猪模型中，我们证明了肾周细胞能够向α- SMA +肌成纤维细胞转分化，从而导致间质纤维化。即使精确周细胞识别需要透射电子显微镜和几个标志物联合免疫（即。，的Gli ，NG2硫酸软骨素蛋白聚糖，CD146，结蛋白或CD73）和新兴的新的标志物（CD248或TEM1，唾液酸蛋白），以往的研究表明，PDGFR-β可用作肾周细胞表征的标志物。最近，对PDGFR-β和α-SMA进行了双重免疫荧光染色，以鉴定在纤维化发展的早期受损激活的周细胞（PDGFR-β + /α-SMA +细胞）。我们的数据强调了肾周细胞在败血症和I / R相关性AKI的生理病理中的关键作用。在该协议中，我们描述了猪福尔马林固定石蜡包埋（FFPE）肾脏活检中PDGFR-β和α-SMA双重免疫荧光染色的程序以及图像分析和定量方法。
[背景】肾脏纤维化被认为是主要负责肾脏疾病的进展，其与肾的损伤后的容量有限，再生有关。进行性肾脏疾病中间质纤维化的主要来源（Simone等人，2014 ; ...
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