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KMID : 0381120220440060721
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Genes and Genomics
2022 Volume.44 No. 6 p.721 ~ p.731
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Ubiquitin specific peptidase 47 promotes proliferation of lung squamous cell carcinoma
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Yu Lin
Fu Jiayu
Shen Chunjian
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Abstract
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Background: Ubiquitin specific peptidase 47 (USP47) is a kind of deubiquitinase, which has been reported to play oncogenic roles in several malignancies including colorectal cancer and breast cancer.
Objective: Here we aimed to investigate the clinical significance of USP47 in lung squamous cell carcinoma (LUSC).
Methods: We retrospectively enrolled a cohort of LUSC patients who underwent surgical resection in our hospital (n?=?280) and conducted immunohistochemistry staining for their tumor tissues targeting USP47. The correlations between USP47 expression and clinicopathological characteristics were evaluated by Chi-square test. Univariate and multivariate analyses were conducted to assess the prognostic predictive role of USP47 in LUSC. Cell lines and mice models were utilized to explore the tumor-related functions of USP47 in vitro and in vivo, respectively.
Results: Among the 280 cases, there were 127 cases classified as high-USP47 expression and 153 cases with low-USP47 expression. Statistical analyses revealed that higher USP47 expression was independently correlated with larger tumor size, advanced T stage, and unfavorable prognosis. Knockdown of USP47 by shRNA resulted in impaired proliferation of LUSC cell lines and reduced nucleus beta-catenin level. Furthermore, xenograft assays demonstrated that silencing USP47 can inhibit LUSC tumor growth in vivo.
Conclusion: Our research established a novel tumor-promoting effect and prognostic predictive role of USP47 in LUSC, thereby providing evidence for further therapeutic development.
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