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Updated: Feb 17, 2026

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods
07:49

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods

Published on: July 17, 2019

6.5K

NRAS-driven melanoma: A RAF can hide another

Sabine Druillennec1,2,3,4,5, Celio Pouponnot1,2,3,4,5, Alain Eychène1,2,3,4,5

  • 1Institut Curie, Orsay, France.

Molecular & Cellular Oncology
|December 7, 2017
PubMed

Insights

BRAF initiates NRAS-driven melanoma, with CRAF unable to compensate. Established tumors rely on RAF signaling, as ARAF sustains proliferation when BRAF and CRAF are absent, showing melanoma addiction to RAF.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • NRAS-driven melanoma is a complex cancer.
  • RAF signaling pathways are crucial in melanoma development.

Purpose of the Study:

  • To investigate the role of BRAF, CRAF, and ARAF in NRAS-driven melanoma initiation and progression.
  • To understand RAF protein compensatory functions in established melanoma.

Main Methods:

  • Utilized mouse genetics to study melanoma development.
  • Analyzed the impact of BRAF, CRAF, and ARAF on tumor initiation and proliferation.

Main Results:

  • BRAF is essential for initiating NRAS-driven melanoma, with no compensation from CRAF.
  • In established tumors, RAF proteins exhibit compensatory roles.
  • ARAF can maintain proliferation even when BRAF and CRAF are non-functional.

Conclusions:

  • BRAF plays a critical, non-compensated role in initiating NRAS-driven melanoma.
  • Established NRAS-driven melanomas are addicted to RAF signaling due to compensatory functions of RAF proteins.
Keywords:
ARAFBRAFCRAFRAShumanmelanomamouseresistancetumor

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