Loss of UHRF2 Is Associated With Non-small Cell Lung Carcinoma Progression

Chun Jin1, Dian Xiong2, Hao-Ran Li1

  • 1Department of Thoracic Surgery, The Affiliated Zhongshan Hospital of Fudan University, Shanghai 200032, P. R. China.

Journal of Cancer
|September 14, 2018
PubMed

Insights

Ubiquitin like with PHD and ring finger domains 2 (UHRF2) acts as a tumor suppressor in non-small cell lung cancer (NSCLC). Decreased UHRF2 expression promotes cancer progression and is linked to poorer patient survival.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Ubiquitin like with PHD and ring finger domains 2 (UHRF2) has been implicated in human diseases, but its specific role in cancer remains unclear.
  • Existing research presents conflicting evidence regarding the function of UHRF2 in oncogenesis.

Purpose of the Study:

  • To investigate the role of UHRF2 in non-small cell lung cancer (NSCLC).
  • To explore the molecular mechanisms underlying UHRF2's function in NSCLC.
  • To evaluate the clinical significance of UHRF2 expression in NSCLC patients.

Main Methods:

  • Analysis of UHRF2 expression in lung cancer tissues using the Oncomine Database.
  • Experimental validation of UHRF2 expression via immunoblotting and quantitative real-time polymerase chain reaction (qRT-PCR).
  • In vitro studies involving UHRF2 knockdown and overexpression in NSCLC cell lines (A549, 95-D).
  • Assays to assess the correlation between UHRF2, ten-eleven translocation 2 (TET2) expression, and 5-hydroxymethylcytosine (5-hmC) levels.

Main Results:

  • UHRF2 expression was significantly decreased in lung cancer tissues compared to normal tissues.
  • Knockdown of UHRF2 promoted proliferation, invasion, and migration of NSCLC cells, while its overexpression inhibited these processes.
  • UHRF2 expression positively correlated with TET2 expression and 5-hmC levels.
  • Downregulation of UHRF2 was associated with advanced tumor characteristics (larger size, poor differentiation) and shorter overall survival in NSCLC patients.

Conclusions:

  • UHRF2 functions as a tumor suppressor in NSCLC.
  • UHRF2 exerts its tumor-suppressive effects possibly through the regulation of TET2 expression, impacting 5-hmC levels.
  • UHRF2 represents a potential therapeutic target for NSCLC treatment.

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