Overexpression of CD300A inhibits progression of NSCLC through downregulating Wnt/β-catenin pathway

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Ze Tang1, Hongfei Cai1, Rui Wang1

  • 1Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun 130021, People's Republic of China, cuiyb@jlu.edu.cn.

Oncotargets and Therapy
|December 22, 2018
PubMed
Abstract

Insights

CD300A acts as a tumor suppressor in non-small-cell lung cancer (NSCLC). Its downregulation promotes cancer progression, while its upregulation inhibits growth and migration by suppressing the Wnt/β-catenin pathway.

Area of Science:

  • Immunology
  • Oncology

Background:

  • CD300A, a transmembrane glycoprotein receptor, is crucial for immune response.
  • Emerging evidence links CD300A to hematological malignancies.

Purpose of the Study:

  • To investigate the role of CD300A in non-small-cell lung cancer (NSCLC) progression.
  • To elucidate the underlying molecular mechanisms of CD300A in NSCLC.

Main Methods:

  • Analyzed CD300A expression and prognostic value in NSCLC using GEPIA.
  • Manipulated CD300A levels in NSCLC cell lines (A549, H1650) via siRNA and vector transfection.
  • Assessed cell proliferation, migration, and apoptosis using CCK-8, colony formation, Transwell, and flow cytometry assays.
  • Investigated protein expression of Wnt/β-catenin pathway components and E-cadherin via Western blot.

Main Results:

  • CD300A mRNA was downregulated in NSCLC and associated with poorer overall survival.
  • Overexpression of CD300A inhibited NSCLC cell proliferation and migration while inducing apoptosis.
  • Decreased CD300A levels promoted cell growth, migration, and inhibited apoptosis.
  • Upregulation of CD300A suppressed Wnt3 and β-catenin, and increased E-cadherin.
  • CD300A depletion activated the Wnt/β-catenin pathway.

Conclusions:

  • CD300A exhibits anti-oncogenic properties in NSCLC progression.
  • CD300A inhibits NSCLC by suppressing the Wnt/β-catenin signaling pathway.
  • CD300A represents a potential therapeutic target for NSCLC treatment.
Keywords:
CD300Anon-small-cell lung cancerprognosisprogression

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