豌豆荚细胞 YAP 消融会降低豌豆荚细胞的粘附性,并通过 α3β1 整合素加剧 FSGS 的进展。

IF 5.6 2区 医学 Q1 ONCOLOGY
Guangze Shao, Jitu Xu, Chencheng Hu, Wenyao Jia, Xitong Xu, Yue Gu, Luming Zhang, Zhihuang Zheng, Jiayan Zhong, Siqi Zhu, Shenghao Meng, Zhonghua Zhao, Zhigang Zhang, Jun Liu, Yanyong Xu, Huijuan Wu
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These mice were further treated with Pyrintegrin, an agonist of α3β1 integrin, or a vehicle. Additionally, an ADR-induced FSGS model was constructed using podocyte-specific <i>Itga3</i> KO mice, which were subsequently treated with 1-oleoyl lysophosphatidic acid (LPA), a YAP activator, or a vehicle. Our findings demonstrated that YAP was positively correlated with podocyte adhesion. Podocyte-specific <i>Yap</i> KO mice exhibited reduced levels of α3β1 integrin and podocyte adhesion. <i>Yap</i> KO aggravated the ADR-induced reduction in α3β1 integrin and podocyte adhesion, resulting in significantly increased segmental or global glomerulosclerosis and proteinuria. Notably, treatment with a β1 integrin agonist partially ameliorated the decrease of podocyte adhesion and the worsening FSGS progression caused by <i>Yap</i> KO. 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Podocyte YAP ablation decreases podocyte adhesion and exacerbates FSGS progression through α3β1 integrin

Severe proteinuria in focal segmental glomerulosclerosis (FSGS) is closely associated with decreased adhesion, and subsequent loss, of podocytes. Yes-associated protein (YAP) is a key transcriptional coactivator that plays a significant role in maintaining cellular homeostasis. However, its role in podocyte adhesion and its specific mechanism in FSGS progression remain unclear. In this study, an adriamycin (ADR)-induced FSGS model was established using podocyte-specific Yap knockout (KO) mice and control mice. These mice were further treated with Pyrintegrin, an agonist of α3β1 integrin, or a vehicle. Additionally, an ADR-induced FSGS model was constructed using podocyte-specific Itga3 KO mice, which were subsequently treated with 1-oleoyl lysophosphatidic acid (LPA), a YAP activator, or a vehicle. Our findings demonstrated that YAP was positively correlated with podocyte adhesion. Podocyte-specific Yap KO mice exhibited reduced levels of α3β1 integrin and podocyte adhesion. Yap KO aggravated the ADR-induced reduction in α3β1 integrin and podocyte adhesion, resulting in significantly increased segmental or global glomerulosclerosis and proteinuria. Notably, treatment with a β1 integrin agonist partially ameliorated the decrease of podocyte adhesion and the worsening FSGS progression caused by Yap KO. Mechanistically, YAP was found to transcriptionally regulate α3- and β1 integrin via transcriptional enhanced associate domain 3 (TEAD3), with TEAD3 binding to the promoter region of Itga3. Furthermore, Itga3 KO or knockdown abolished the beneficial effects of YAP activation on podocyte adhesion and FSGS progression. In conclusion, our results demonstrate that YAP regulates podocyte adhesion and FSGS progression through its transcriptional regulation of α3β1 integrin via TEAD3. This suggests that the YAP-TEAD3-α3β1 integrin axis may serve as a promising therapeutic target for FSGS. © 2024 The Pathological Society of Great Britain and Ireland.

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来源期刊
The Journal of Pathology
The Journal of Pathology 医学-病理学
CiteScore
14.10
自引率
1.40%
发文量
144
审稿时长
3-8 weeks
期刊介绍: The Journal of Pathology aims to serve as a translational bridge between basic biomedical science and clinical medicine with particular emphasis on, but not restricted to, tissue based studies. The main interests of the Journal lie in publishing studies that further our understanding the pathophysiological and pathogenetic mechanisms of human disease. The Journal of Pathology welcomes investigative studies on human tissues, in vitro and in vivo experimental studies, and investigations based on animal models with a clear relevance to human disease, including transgenic systems. As well as original research papers, the Journal seeks to provide rapid publication in a variety of other formats, including editorials, review articles, commentaries and perspectives and other features, both contributed and solicited.
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