Related Experiment Video
Updated: May 28, 2026

Establishing Dual Resistance to EGFR-TKI and MET-TKI in Lung Adenocarcinoma Cells In Vitro with a 2-step Dose-escalation Procedure
Published on: August 11, 2017
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.
Background:
Acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) remains a major obstacle in the treatment of lung adenocarcinoma (LUAD), yet the underlying mechanisms are incompletely understood.
Methods:
This study investigated the role of the STRIP2-IGF2BP3 axis in TKI resistance. In vitro and in vivo experiments were performed to evaluate the effect of this axis on TKI sensitivity, the mechanism by which it regulates Twist1 stability, and the prognostic relevance of these markers in LUAD tissue samples.
Results:
STRIP2 was upregulated in TKI-resistant patient samples and cells. Knockdown of STRIP2 markedly restored EGFR-TKIs sensitivity both in vitro and in vivo. Mechanistically, STRIP2 cooperated with IGF2BP3 to drive acquired resistance by enhancing m6A modification of Twist1 and stabilizing Twist1 in an IGF2BP3-dependent manner.
Conclusions:
These findings highlight that the STRIP2-IGF2BP3-Twist1 axis, which mediates acquired resistance to EGFR-TKIs, represents a potential therapeutic target for LUAD patients.
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.
More Related Videos
09:38Establishment and Characterization of Three Afatinib-resistant Lung Adenocarcinoma PC-9 Cell Lines Developed with Increasing Doses of Afatinib
Published on: June 26, 2019
13:34A Combined 3D Tissue Engineered In Vitro/In Silico Lung Tumor Model for Predicting Drug Effectiveness in Specific Mutational Backgrounds
Published on: April 6, 2016
Related Concept Videos
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
TGF - β Signaling Pathway
Mitogens and the Cell Cycle