STRIP2 confers acquired resistance to EGFR-TKIs in lung adenocarcinoma by modulating IGF2BP3-dependent Twist1

Xilin Zhang1, Jing Gu2, Ziwei Lei3

  • 1Central Laboratory, Huzhou Key Laboratory of Translational Medicine, First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang 313000, China.

Genomics
|May 26, 2026
PubMed
Abstract

Insights

The STRIP2-IGF2BP3-Twist1 axis drives acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) in lung adenocarcinoma. Targeting this axis may overcome treatment resistance in patients.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Acquired resistance to EGFR-TKIs is a significant challenge in lung adenocarcinoma (LUAD) treatment.
  • Mechanisms underlying TKI resistance in LUAD are not fully understood.

Purpose of the Study:

  • To investigate the STRIP2-IGF2BP3 axis's role in EGFR-TKI resistance in LUAD.
  • To elucidate the mechanism of STRIP2-IGF2BP3 in regulating Twist1 stability and TKI sensitivity.
  • To assess the prognostic value of STRIP2, IGF2BP3, and Twist1 in LUAD.

Main Methods:

  • In vitro and in vivo experiments were conducted to assess the STRIP2-IGF2BP3 axis's impact on TKI sensitivity.
  • Investigated the molecular mechanism involving m6A modification and Twist1 stabilization.
  • Analyzed LUAD tissue samples for prognostic relevance of key markers.

Main Results:

  • STRIP2 expression was elevated in TKI-resistant LUAD samples and cells.
  • STRIP2 knockdown restored sensitivity to EGFR-TKIs.
  • The STRIP2-IGF2BP3 axis enhances acquired resistance by promoting m6A modification and stabilizing Twist1.

Conclusions:

  • The STRIP2-IGF2BP3-Twist1 axis is a key mediator of acquired resistance to EGFR-TKIs in LUAD.
  • This axis represents a promising therapeutic target for overcoming TKI resistance in LUAD patients.

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