Related Experiment Video

Updated: Oct 5, 2025

Establishing Dual Resistance to EGFR-TKI and MET-TKI in Lung Adenocarcinoma Cells In Vitro with a 2-step Dose-escalation Procedure
09:38

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

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Multiple Mechanisms Underlie the Acquired Resistance to KRAS G12C Inhibition

    Cancer Discovery
    |January 22, 2022
    PubMed

    Insights

    Direct KRAS G12C inhibition shows resistance through various mechanisms. Understanding these pathways is crucial for developing effective cancer therapies targeting this specific mutation.

    Area of Science:

    • Oncology
    • Molecular Biology
    • Drug Discovery

    Background:

    • KRAS G12C is a common oncogenic mutation in various cancers.
    • Targeted therapies inhibiting KRAS G12C have shown promise.
    • Acquired resistance limits the long-term efficacy of these therapies.

    Purpose of the Study:

    • To elucidate the diverse mechanisms by which cancer cells develop resistance to direct KRAS G12C inhibitors.
    • To identify potential therapeutic strategies to overcome acquired resistance.

    Main Methods:

    • Utilized patient-derived xenografts and cell line models.
    • Employed genomic and transcriptomic analyses.
    • Performed functional assays to validate resistance mechanisms.

    Main Results:

    • Identified multiple parallel and serial resistance pathways.
    • Revealed alterations in downstream signaling and bypass pathways.
    • Demonstrated the emergence of novel resistance-driving mutations.

    Conclusions:

    • Acquired resistance to KRAS G12C inhibitors is multifactorial.
    • Targeting these resistance mechanisms may improve patient outcomes.
    • Further research is needed to develop combination therapies.

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