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USP2 Inhibits Lung Cancer Pathogenesis by Reducing ARID2 Protein Degradation via Ubiquitination

Lihuan Zhu1, Zhizhong Chen2, Tianxing Guo1

  • 1Department of Thoracic Surgery, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou 350001, China.

Biomed Research International
|December 26, 2022
PubMed
Abstract

Insights

Ubiquitin-specific protease 2 (USP2) suppresses lung cancer by reducing ARID2 protein degradation through ubiquitination. This finding offers new insights into USP2

Area of Science:

  • Molecular Biology
  • Oncology
  • Biochemistry

Background:

  • Ubiquitination regulates physiological and pathological processes.
  • USP2, a deubiquitinating enzyme, shows oncogenic roles in various cancers.
  • The specific role of USP2 in lung cancer remains unclear.

Purpose of the Study:

  • To investigate the regulatory role of USP2 in lung cancer.
  • To explore the interaction between USP2 and ARID2 in lung cancer.

Main Methods:

  • Immunoprecipitation-Mass Spectrometry (IP-MS) and Co-immunoprecipitation (Co-IP) for protein interaction analysis.
  • Quantitative reverse transcription PCR (qRT-PCR), Western blot, and immunohistochemistry for expression analysis.
  • Functional assays (CHX chase, Transwell, wound healing) to assess USP2's impact on lung cancer cells.

Main Results:

  • USP2 expression is suppressed in lung cancer cell lines and tissues.
  • USP2 interacts with and co-localizes with ARID2.
  • USP2 inhibits lung cancer cell invasion and migration by reducing ARID2 protein degradation via ubiquitination.

Conclusions:

  • USP2 may act as a tumor suppressor in lung cancer.
  • USP2 inhibits lung cancer progression by stabilizing ARID2 protein.
  • Targeting USP2-ARID2 interaction could be a therapeutic strategy for lung cancer.

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