| Literature DB >> 34520818 |
Yingqiang Lu1, Haixiang Qin2, Bo Jiang2, Wenfeng Lu2, Jiange Hao2, Wenmin Cao2, Lin Du3, Wei Chen2, Xiaozhi Zhao2, Hongqian Guo4.
Abstract
The metastatic dissemination and underlying mechanisms of clear cell renal cell carcinoma (ccRCC) remain insufficiently understood. In this study, we identified the essential role of KLF2 in suppressing the metastasis of ccRCC. Downregulation of KLF2 detected by immunohistochemistry in primary metastatic ccRCC was remarkably related to poor clinical outcomes. Overexpression of KLF2 in vitro inhibited growth, migration and invasion of RCC cells. Analysis of clinical specimens revealed that there is a close correlation between KLF2 and GPX4 in ccRCC. Mechanistically, KLF2 deficiency is sufficient to inhibit ferroptosis on account of the impairment of transcriptional repression of GPX4 and thus promotes the migration and invasion of RCC cells. Reverting KLF2 expression in vivo decreased pulmonary metastatic lesions and prolonged life span of mice, whereas GPX4 overexpression reversed these properties. Overall, our results established a novel critical pathway that drives human ccRCC invasion and metastasis, which could be a promising target regarding to the therapies of advanced ccRCC in the clinic.Entities:
Keywords: Clear cell renal cell carcinoma; Ferroptosis; KLF2; Metastasis
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Year: 2021 PMID： 34520818 DOI： 10.1016/j.canlet.2021.09.014
Source DB: PubMed Journal: Cancer Lett ISSN： 0304-3835 Impact factor: 8.679