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TFAP4 Activates IGF2BP1 and Promotes Progression of Non-Small Cell Lung Cancer by Stabilizing TK1 Expression through

Qiming Shen1, Zhe Xu1, Guanghao Sun1

  • 1Department of Thoracic Surgery, The First Hospital of China Medical University, Heping Area, Shenyang, Liaoning, China.

Molecular Cancer Research : MCR
|September 8, 2022
PubMed

Insights

Transcription factor TFAP4 promotes non-small cell lung cancer (NSCLC) by activating IGF2BP1, which stabilizes TK1 expression through m6A modification, driving tumor growth.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gene Regulation

Background:

  • Non-small cell lung cancer (NSCLC) is a significant global health issue.
  • The transcription factor TFAP4 is implicated as an oncogene in cancer development.

Purpose of the Study:

  • To elucidate the molecular mechanism of TFAP4 in NSCLC pathogenesis.
  • To investigate the regulatory roles of TFAP4, IGF2BP1, and TK1 in NSCLC progression.

Main Methods:

  • Bioinformatic screening and prediction of gene interactions (IGF2BP1, TK1).
  • Experimental validation in NSCLC tissues and cell lines, including knockdown and in vivo xenograft models.
  • Analysis of gene expression, cell proliferation, migration, invasion, apoptosis, and m6A modification.

Main Results:

  • TFAP4 directly activates the transcription of IGF2BP1 in NSCLC.
  • IGF2BP1 stabilizes Thymidine Kinase 1 (TK1) expression via m6A modification, promoting NSCLC cell proliferation, migration, and invasion.
  • TFAP4 knockdown inhibits tumor growth in vivo by downregulating the IGF2BP1/TK1 axis.

Conclusions:

  • TFAP4 drives NSCLC progression by upregulating IGF2BP1, which in turn stabilizes TK1 expression through m6A modification.
  • This TFAP4-IGF2BP1-TK1 pathway offers potential therapeutic targets for NSCLC treatment.

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