CD44阳性肾小球壁层上皮细胞在早期预测局灶节段肾小球硬化中的价值

Chinese Journal of Clinical and Experimental Pathology(2022)

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Abstract
目的 探讨肾小球壁层上皮细胞(parietal epithelial cell,PEC)的活化和定位及在早期预测原发性局灶节段肾小球硬化(focal segmental glomerulosclerosis,FSGS)中的意义.方法 收集18例原发性FSGS和54例微小病变肾病(minimal change dis-ease,MCD)患者的临床资料,采用免疫组化EnVision法检测肾小球CD44+PEC在肾小球的表达位置和阳性率.根据组织学形态和临床随访信息,评价CD44+PEC在肾小球基膜(glomerular basement membrane,GBM)上皮侧表达的诊断价值.结果 18例(100%)原发性FSGS均可见CD44+PEC局灶节段定位于GBM上皮侧.54例MCD中有3例(5.56%)可见CD44+PEC局灶节段定位于GBM上皮侧,提示存在可疑的FSGS病变;对3例患者行PAS染色,镜下仍未见明显的FSGS病变;临床表现均为非激素敏感型肾病综合征,可能是由于病程、病理取材的局限性等原因不能除外FSGS.结论 CD44+PEC局灶节段定位于GBM上皮侧,有助于诊断和早期预测FSGS.
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