Transcriptome profiling analysis reveals that CXCL2 is involved in anlotinib resistance in human lung cancer cells

Jun Lu1, Wei Xu2, Jie Qian1

  • 1Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Rd, Shanghai, 200030, China.

BMC Medical Genomics
|March 16, 2019
PubMed
Abstract

Insights

Anlotinib resistance in non-small cell lung cancer (NSCLC) involves the CXCL2 gene. This study identifies CXCL2 as a key factor contributing to anlotinib resistance, offering insights into treatment mechanisms.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Anlotinib demonstrates anti-tumor efficacy in non-small cell lung cancer (NSCLC) as a third-line treatment.
  • Anlotinib resistance is a clinical challenge with an unclear underlying mechanism.

Purpose of the Study:

  • To investigate the molecular mechanisms of anlotinib resistance in NSCLC.
  • To identify genes associated with anlotinib resistance and their functional roles.

Main Methods:

  • Established an in vitro anlotinib-resistant non-small cell lung cancer (NSCLC) cell line (NCI-H1975).
  • Performed transcriptome profiling to identify differentially expressed genes between sensitive and resistant cells.
  • Conducted functional assays to validate the role of CXCL2 in anlotinib resistance.

Main Results:

  • Anlotinib inhibited proliferation in sensitive cells but showed reduced efficacy in resistant cells.
  • Transcriptome analysis revealed 769 anlotinib-responsive genes and identified 127 genes associated with resistance.
  • CXCL2 gene expression was found to be significantly correlated with and contribute to anlotinib resistance.

Conclusions:

  • CXCL2 plays a crucial role in the development of anlotinib resistance in non-small cell lung cancer (NSCLC).
  • Understanding the involvement of CXCL2 provides potential therapeutic targets for overcoming anlotinib resistance.

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