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Laboratory Investigation

Laboratory Investigation

IF: 4.2
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Nuclear exclusion of YAP exacerbates podocyte apoptosis and disease progression in Adriamycin-induced focal segmental glomerulosclerosis

Published:17 November 2020 DOI: 10.1038/s41374-020-00503-3 PMID: 36775490
Qiyuan Zhuang, Fang Li, Jun Liu, Hongyu Wang, Yuchen Tian, Zhigang Zhang, Feng Wang, Zhonghua Zhao, Jianchun Chen, Huijuan Wu

Abstract

Focal segmental glomerulosclerosis (FSGS) is a chronic glomerular disease with poor clinical outcomes. Podocyte loss via apoptosis is one important mechanism underlying the pathogenesis of FSGS. Recently, Yes-associated-protein (YAP), a key downstream protein in the Hippo pathway, was identified as an activator for multiple gene transcriptional factors in the nucleus to control cell proliferation and apoptosis. To investigate the potential role of YAP in the progression of FSGS, we examined kidney samples from patients with minimal change disease or FSGS and found that increases in podocyte apoptosis is positively correlated with the cytoplasmic distribution of YAP in human FSGS. Utilizing an established mT/mG transgenic mouse model and primary cultured podocytes, we found that YAP was distributed uniformly in nucleus and cytoplasm in the podocytes of control animals. Adriamycin treatment induced gradual nuclear exclusion of YAP with enhanced phospho-YAP/YAP ratio, accompanied by the induction of podocyte apoptosis both in vivo and in vitro. Moreover, we used verteporfin to treat an Adriamycin-induced FSGS mouse model, and found YAP inhibition by verteporfin induced nuclear exclusion of YAP, thus increasing podocyte apoptosis and accelerating disease progression. Therefore, our findings suggest that YAP nuclear distribution and activation in podocytes is an important endogenous anti-apoptotic mechanism during the progression of FSGS. An increase in podocyte apoptosis is positively correlated with the cytoplasmic distribution of YAP in focal segmental glomerulosclerosis (FSGS). YAP inhibition by verteporfin induces nuclear exclusion of YAP, thus increasing the podocyte apoptosis and accelerating disease progression. Therefore, this study suggests that YAP activation and nuclear distribution in podocytes is an endogenous anti-apoptotic mechanism during the progression of FSGS.

Substances (4)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Verteporfin 129497-78-5 2C41H42N4O8 253 suppliers $24.00-$5308.00
Verteporfin 129497-78-5 2C41H42N4O8 253 suppliers $24.00-$5308.00
Verteporfin 129497-78-5 2C41H42N4O8 253 suppliers $24.00-$5308.00
Verteporfin 129497-78-5 2C41H42N4O8 253 suppliers $24.00-$5308.00

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