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- Title
CHD1L augments autophagy-mediated migration of hepatocellular carcinoma through targeting ZKSCAN3.
- Authors
Zhang, Xiaofeng; Bai, Yinshan; Huang, Li; Liu, Shanshan; Mo, Yanxuan; Cheng, Wei; Wang, Guangliang; Cao, Zhiming; Chen, Xiaogang; Cui, Huiqing; Qi, Ling; Ma, Lei; Liu, Ming; Guan, Xin-Yuan; Ma, Ning-Fang
- Abstract
Autophagy is an important biological process in normal cells. However, how it affects tumor progression still remains poorly understood. Herein, we demonstrated that the oncogenic protein Chromodomain-helicase-DNA-binding-protein 1-like gene (CHD1L) might promote HCC cells migration and metastasis through autophagy. CHD1L could bind to the promotor region of Zinc finger with KRAB and SCAN domain 3 (ZKSCAN3), a pivotal autophagy suppressor, and inhibit its transcription. We established inducible CHD1L conditional knockout cell line (CHD1L-iKO cell) and found that the deletion of CHD1L significantly increased ZKSCAN3 expression both at mRNA and protein level. Deletion of CHD1L impaired the autophagic flux and migration of HCC cells, while specifically inhibiting ZKSCAN3 blocked these effects. Further exploration demonstrated that the enhanced tumor cell migration and metastasis induced by CHD1L was mediated through ZKSCAN3-induced autophagic degradation of Paxillin. In summary, we have characterized a previously unknown function of CHD1L in regulating tumor migration via ZKSCAN3-mediated autophagy in HCC. Further inhibition of CHD1L and its downstream autophagy signaling might shed new light on cancer therapeutics.
- Publication
Cell Death & Disease, 2021, Vol 12, Issue 10, p1
- ISSN
2041-4889
- Publication type
Article
- DOI
10.1038/s41419-021-04254-x