Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

26 May 2018 : Clinical Research  

Reduced Expression of Deubiquitinase USP33 Is Associated with Tumor Progression and Poor Prognosis of Gastric Adenocarcinoma

Yan Chen1A, Xumei Pang2B, Lijuan Ji1C, Yingchun Sun3DE, Yongjing Ji4EF

DOI: 10.12659/MSM.908075

Med Sci Monit 2018; 24: CLR3496-3505


BACKGROUND: Ubiquitin-specific peptidase 33 (USP33) is a deubiquitinase that balances the ubiquitin status of proteins. It has been reported to act as a tumor suppressor in colorectal cancer and lung cancer. However, the expression pattern and clinical significance of USP33 have not been investigated in gastric adenocarcinoma (GAC).

MATERIAL AND METHODS: We explored the USP33 protein and RNA levels by immunohistochemistry (IHC), Western blot analysis, and qRT-PCR. The Pearson chi-square test was performed to evaluate the statistical associations between USP33 level and patient characteristics. Additionally, the relationship between USP33 expression and patient survival was investigated. Cellular studies, including proliferation assay, migration assay, and invasion assay, were conducted to demonstrate the underlying mechanisms of USP33 in GAC progression.

RESULTS: This study included 121 patients with GAC. USP33 showed a decreased expression in GAC tissues compared to adjacent normal gastric tissues. Low expression of USP33 was correlated with invasion depth and advanced TNM stage. According to survival analysis, upper location of tumor (P=0.003), invasion depth (P=0.048), advanced TNM stage (P=0.001), and low USP33 level (P=0.001) were all associated with poor overall survival of GAC patients. Cox analysis confirmed the independent role of USP33 in predicting patient survival. Cell experiments showed that USP33 overexpression significantly inhibited the proliferation, migration, and invasion of GAC cells.

CONCLUSIONS: USP33 was downregulated in GAC, and was an independent prognostic factor. In vitro results demonstrated the role of USP33 in suppressing tumor progression, suggesting that the developing an agonist of USP33 may be a novel direction for chemotherapy development.

Keywords: Prognosis, Stomach Neoplasms



01 November 2021 : Editorial  

Editorial: What Can be Learned from National and International Vaccine Adverse Event Reporting Systems During the COVID-19 Pandemic?

Dinah V. Parums
Scientific Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.935299

Med Sci Monit 2022; 28:e935299


26 November 2021 : Editorial  

Editorial: SARS-CoV-2 Vaccine Responses and Breakthrough COVID-19

Med Sci Monit In Press; DOI: 10.12659/MSM.935624  

08 November 2021 : Database Analysis  

Virtual Screening and Molecular Docking to Study the Mechanism of Chinese Medicines in the Treatment of Cor...

Med Sci Monit In Press; DOI: 10.12659/MSM.934102  

25 November 2021 : Clinical Research  

Use of Monoclonal Antibodies Therapy for Treatment of Mild to Moderate COVID-19 in 4 Patients with Rheumato...

Med Sci Monit 2021; 27:e934267

In Press

29 Nov 2021 : Database Analysis  

Integrated Analysis of Angiogenesis-Mediated Tumor Immune Microenvironment Pattern in Hepatocellular Carcin...

Med Sci Monit In Press; DOI: 10.12659/MSM.934937  

26 Nov 2021 : Clinical Research  

Serum Uric Acid Levels in Relation to Atrial Fibrillation: A Case-Control Study

Med Sci Monit In Press; DOI: 10.12659/MSM.934007  

26 Nov 2021 : Database Analysis  

Network Pharmacology Integrated Molecular Docking Revealed the Mechanism of Jianpi Yiqi Taohua Decoction Ag...

Med Sci Monit In Press; DOI: 10.12659/MSM.933537  

26 Nov 2021 : Editorial  

Editorial: SARS-CoV-2 Vaccine Responses and Breakthrough COVID-19

Med Sci Monit In Press; DOI: 10.12659/MSM.935624  

Most Viewed Current Articles

20 Mar 2020 : Clinical Research  

Social Capital and Sleep Quality in Individuals Who Self-Isolated for 14 Days During the Coronavirus Diseas...

DOI :10.12659/MSM.923921

Med Sci Monit 2020; 26:e923921

15 Apr 2020 : Clinical Research  

Psychological Impact and Coping Strategies of Frontline Medical Staff in Hunan Between January and March 20...

DOI :10.12659/MSM.924171

Med Sci Monit 2020; 26:e924171

05 May 2020 : Review article  

An Evidence Based Perspective on mRNA-SARS-CoV-2 Vaccine Development

DOI :10.12659/MSM.924700

Med Sci Monit 2020; 26:e924700

26 Apr 2020 : Clinical Research  

Comparison of Prevalence and Associated Factors of Anxiety and Depression Among People Affected by versus P...

DOI :10.12659/MSM.924609

Med Sci Monit 2020; 26:e924609

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750