The up-regulation of NDRG1 by HIF counteracts the cancer-promoting effect of HIF in VHL-deficient clear cell renal cell carcinoma

Cell Proliferation
Zheng-Yan ZhangLi-Shun Wang

Abstract

Hypoxia-inducible factors (HIFs) are thought to play important roles in the carcinogenesis and progression of VHL-deficient clear cell renal cell carcinoma (ccRCC). The roles of HIF-1/2α in VHL-deficient clear cell renal cell carcinoma were evaluated by bioinformatics analysis, immunohistochemistry staining and Kaplan-Meier survival analysis. The downstream genes that counteract the cancer-promoting effect of HIF were analysed by unbiased proteomics and verified by in vitro and in vivo assays. There was no correlation between the high protein level of HIF-1/2α and the poor prognosis of ccRCC patients in our large set of clinical data. Furthermore, NDRG1 was found to be up-regulated by both HIF-1α and -2α at the cellular level and in ccRCC tissues. Intriguingly, the high NDRG1 expression was correlated with lower Furman grade, TNM stage and longer survival for ccRCC patients compared with the low NDRG1 expression. In addition, NDRG1 suppressed the expression of series oncogenes as well as the proliferation, metastasis and invasion of VHL-deficient ccRCC cells in vitro and vivo. Our study demonstrated that HIF downstream gene of NDRG1 may counteract the cancer-promoting effect of HIF. These results provided evidence that NDRG1 ma...Continue Reading

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Citations

Jun 9, 2021·Journal of Orthopaedic Surgery and Research·Tong ZhaoWenji Wang

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Methods Mentioned

BETA
electrophoresis
PCR
transfection
xenograft

Software Mentioned

Ingenuity Pathway
IPA
Proteome
SPSS Statistics
Venn
QIAGEN
GraphPad Prism
Ingenuity Pathway Analysis (
Scaffold

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