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CKS2 Promotes the Growth in Non-Small-Cell Lung Cancer by Downregulating Cyclin-Dependent Kinase Inhibitor

Zongren Wan1, Lixin Wang1, Dan Yang1

  • 1Department of Pulmonary and Critical Care Medicine, Huai'an First People's Hospital, Huai'an, China.

Pathobiology : Journal of Immunopathology, Molecular and Cellular Biology
|August 1, 2021
PubMed
Abstract

Insights

Cyclin-dependent kinase subunit 2 (CKS2) is upregulated in non-small-cell lung cancer (NSCLC). Silencing CKS2 inhibits NSCLC cell growth and tumor formation, suggesting CKS2 is a potential biomarker for NSCLC progression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Non-small-cell lung cancer (NSCLC) is a leading cause of cancer-related mortality worldwide.
  • Understanding the molecular mechanisms driving NSCLC progression is crucial for developing effective therapies.

Purpose of the Study:

  • To investigate the expression levels of cyclin-dependent kinase subunit 2 (CKS2) in NSCLC tissues and cells.
  • To elucidate the functional role of CKS2 in NSCLC cell proliferation, cell cycle progression, and tumorigenesis.

Main Methods:

  • Established gene-silencing and overexpression models of CKS2 in NCI-H2170 NSCLC cells using shRNA and plasmid transfection.
  • Assessed cell viability and growth using Cell Count Kit-8 and colony formation assays.
  • Analyzed cell cycle progression via propidium iodide staining.
  • Quantified gene and protein expression using RT-qPCR and Western blotting.
  • Evaluated in vivo tumor growth in a nude mouse model.

Main Results:

  • CKS2 expression was significantly upregulated in NSCLC tissues and cells compared to controls.
  • CKS2 knockdown suppressed NSCLC cell viability, proliferation, and colony formation.
  • CKS2 overexpression promoted cell growth and accelerated cell cycle progression.
  • In vivo studies demonstrated that CKS2 knockdown inhibited tumor formation in nude mice.

Conclusions:

  • CKS2 plays a critical role in promoting NSCLC cell growth and tumorigenesis.
  • CKS2 expression levels correlate with NSCLC progression.
  • CKS2 represents a potential biomarker for predicting NSCLC prognosis and progression.
Keywords:
Cell cycleCell proliferationCycle-dependent kinase inhibitorCyclin-dependent kinase subunit 2Non-small-cell lung cancerTumorigenesis

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