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Yes-associated protein (YAP) binds to HIF-1α and sustains HIF-1α protein stability to promote hepatocellular carcinoma cell glycolysis under hypoxic stress

Open access
Zhang, Xiaodong, Li, Yan, Ma, Yingbo, Yang, Liang, Wang, Tao, Meng, Xin, Zong, Zhihong, Sun, Xun, Hua, Xiangdong, Li, Hangyu·2018·Journal of Experimental & Clinical Cancer Research

Abstract

Abstract Background Hypoxia-inducible factor 1α (HIF-1α) is essential in hepatocellular carcinoma (HCC) glycolysis and progression. Yes-associated protein (YAP) is a powerful regulator and is overexpressed in many cancers, including HCC. The regulatory mechanism of YAP and HIF-1α in HCC glycolysis is unknown. Methods We detected YAP expression in 54 matched HCC tissues and the adjacent noncancerous tissues. The relationship between YAP mRNA expression and that of HIF-1α was analyzed using The Cancer Genome Atlas HCC tissue data. We cultured HepG2 and Huh7 HCC cells under normoxic (20% O 2 ) and hypoxic (1% O 2 ) conditions, and measured the lactate and glucose levels, migration and invasive capability, and the molecular mechanism of HCC cell glycolysis and progression. Results In this study, we detected YAP expression in 54 matched HCC tissues and the adjacent noncancerous tissues. We observed that hypoxia-induced YAP activation is crucial for accelerating HCC cell glycolysis. Hypoxia inhibited the Hippo signaling pathway and promoted YAP nuclear localization, and decreased phosphorylated YAP expression in HCC cells. YAP knockdown inhibited HCC cell glycolysis under hypoxic. Mechanistically, hypoxic stress in the HCC cells promoted YAP binding to HIF-1α in the nucleus and sustained HIF-1α protein stability to bind to PKM2 gene and directly activates PKM2 transcription to accelerate glycolysis. Conclusions Our findings describe a new regulatory mechanism of hypoxia-mediated HCC metabolism, and YAP might be a promising therapeutic target in HCC.

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Metadata

Authors
Zhang, X., Li, Y., Ma, Y., Yang, L., Wang, T., Meng, X., Zong, Z., Sun, X., Hua, X., & Li, H.
Venue
Journal of Experimental & Clinical Cancer Research
Published
2018-09-04
Volume
37
Issue
1
Pages
216-216
ISSN
  • 0392-9078 (ISSN-L)
  • 1756-9966
OpenAlex
W2891926051
Cited by
234
References
16
FWCI
11.82
Type
journal article
Language
en
Status
Retracted
Open access
gold

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CoChat. (2026). Citation check: Yes-associated protein (YAP) binds to HIF-1α and sustains HIF-1α protein stability to promote hepatocellular carcinoma cell glycolysis under hypoxic stress. https://app.cochat.ai/papers/10.1186/s13046-018-0892-2
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Zhang, X., Li, Y., Ma, Y., Yang, L., Wang, T., Meng, X., Zong, Z., Sun, X., Hua, X., & Li, H. (2018). Yes-associated protein (YAP) binds to HIF-1α and sustains HIF-1α protein stability to promote hepatocellular carcinoma cell glycolysis under hypoxic stress. Journal of Experimental & Clinical Cancer Research. https://doi.org/10.1186/s13046-018-0892-2

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