2. Academic Validation
  3. Ubiquitin-specific peptidase 46 promotes tumor metastasis through stabilizing ENO1 in human esophageal squamous cell carcinoma

Ubiquitin-specific peptidase 46 promotes tumor metastasis through stabilizing ENO1 in human esophageal squamous cell carcinoma

  • Exp Cell Res. 2020 Oct 1;395(1):112188. doi: 10.1016/j.yexcr.2020.112188.
Maoqing Tian 1,  Rui Zhu 2,  Fang Ding 2,  Zhihua Liu 3
Affiliations

Affiliations

  • 1 Guizhou University School of Medicine, Guizhou, 550025, PR China.
  • 2 State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, PR China.
  • 3 State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, PR China. Electronic address: liuzh@cicams.ac.cn.
PMID: 32707136 DOI: 10.1016/j.yexcr.2020.112188
Abstract

Esophageal squamous cell carcinoma (ESCC) has high aggressiveness and poor prognosis, and is the major histological subtype of esophageal Cancer in East Asia and East Africa. In this study, we found that USP46, a deubiquitinating Enzyme, is overexpressed in clinical ESCC samples, especially in patients with positive lymph node metastasis. Moreover, USP46 enhances the migration and invasion of ESCC cells by mediating the EMT process in vitro, and promotes lymph nodes and lung metastasis of ESCC in vivo. In addition, we found that USP46 is a bona fide deubiquitinating Enzyme to stabilize the protein level of ENO1 through deubiquitination. ENO1 protein level was also positively correlated with USP46 in the ESCC samples. In summary, these findings reveal the functional role of USP46 as a deubiquitinating Enzyme on ESCC metastasis, providing us a potential therapeutic target for the treatment of ESCC.

Keywords

Deubiquitination; ENO1; ESCC; Metastasis; USP46.

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