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Cancer Cell International

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Open Access 01-12-2019 | Hepatocellular Carcinoma | Primary research

Leucine-rich repeat and sterile alpha motif containing 1 promotes the oncogenic growth of human hepatocellular carcinoma cells

Authors: Lili Pian, Xiaofeng Huang, Min Zhao, Yaolin Zhang, Cheng Qin, Jiyan Zhang, Jun Zhang, Qingyang Wang

Published in: Cancer Cell International | Issue 1/2019

Abstract

Background

Hepatocellular carcinoma (HCC), the most common primary cancer of the liver, is one of the most common malignancies and the leading cause of cancer-related death worldwide. Leucine-rich repeat and sterile alpha motif containing 1 (LRSAM1) is an E3 ubiquitin ligase involved in diverse cellular activities, including the regulation of cargo sorting, cell adhesion and antibacterial autophagy. The role of LRSAM1 in HCC remains unknown.

Methods

In this study, we reviewed the TCGA database and then performed gain-of-function and loss-of-function analyses of LRSAM1 in HCC cell lines.

Results

We found that the mRNA expression level of LRSAM1 was significantly increased in clinical HCC tissues in the TCGA database. Transient LRSAM1 knockdown in several human HCC cell lines led to reduced growth in conventional culture conditions. Stable LRSAM1 knockdown in HepG2 cells led to impaired anchorage-independent growth whereas its stable ectopic overexpression yielded the opposite effects. LRSAM1 overexpression in HepG2 cells enhanced in vivo tumorigenicity, whereas LRSAM1 knockdown in this cell line significantly impaired tumor growth.

Conclusions

Our data suggest that LRSAM1 promotes the oncogenic growth of human HCC cells, although the underlying mechanisms remain to be explored.

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Title: Leucine-rich repeat and sterile alpha motif containing 1 promotes the oncogenic growth of human hepatocellular carcinoma cells
Authors: Lili Pian
Xiaofeng Huang
Min Zhao
Yaolin Zhang
Cheng Qin
Jiyan Zhang
Jun Zhang
Qingyang Wang
Publication date: 01-12-2019
Publisher: BioMed Central
Keywords: Hepatocellular Carcinoma
Hepatocellular Carcinoma
Published in: Cancer Cell International / Issue 1/2019
Electronic ISSN: 1475-2867
DOI: https://doi.org/10.1186/s12935-019-0976-x

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Abstract

Background

Methods

Results

Conclusions

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