Related Experiment Video

Updated: Feb 14, 2026

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods
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c-Raf in KRas Mutant Cancers: A Moving Target

Frank McCormick1

  • 1University of California San Francisco, Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, USA.

Cancer Cell
|February 14, 2018
PubMed

Insights

Targeting c-Raf halts KRas G12V cancer growth. Ablating c-Raf regressed advanced KRas G12V/Trp53 tumors with no systemic toxicity, validating it as a key therapeutic target for KRas cancers.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Therapeutics

Background:

  • KRas-driven cancers represent a significant unmet clinical need, lacking effective targeted therapies.
  • The Ras-MAPK signaling pathway is frequently dysregulated in various cancers, including KRas-driven malignancies.

Purpose of the Study:

  • To investigate the therapeutic potential of targeting c-Raf in KRas-driven cancers.
  • To validate c-Raf as a druggable target for KRas-mutant and Trp53-mutant tumors.

Main Methods:

  • Utilized genetic ablation of c-Raf in preclinical models of KRas-driven cancer.
  • Assessed tumor regression and systemic toxicity following c-Raf inhibition.
  • Analyzed the impact of c-Raf ablation on MAPK signaling pathways.

Main Results:

  • c-Raf ablation led to the regression of advanced KRasG12V/Trp53-mutant tumors.
  • The observed tumor regression occurred without significant systemic toxicity.
  • MAPK signaling remained unaffected despite c-Raf ablation, suggesting a context-dependent role.

Conclusions:

  • c-Raf is a validated and effective therapeutic target for KRas-mutant cancers, particularly those co-occurring with Trp53 mutations.
  • Targeting c-Raf offers a promising strategy for treating KRas-driven tumors with minimal side effects.
  • Further investigation into the precise mechanisms of c-Raf in KRas cancer is warranted.

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