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KRAS, MYC, and ARF6: inseparable relationships cooperatively promote cancer malignancy and immune evasion

Hisataka Sabe1

  • 1Department of Molecular Biology, Graduate School of Medicine, and Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan. sabeh@med.hokudai.ac.jp.

Cell Communication and Signaling : CCS
|May 9, 2023
PubMed

Insights

KRAS, MYC, and ARF6 proteins cooperate in cancer malignancy and immune evasion. Their interactions activate mitochondria, driving tumor growth and metastasis, particularly in pancreatic cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Genetics

Background:

  • Mutations in KRAS and overexpression of MYC and ARF6 are common in cancer.
  • These genes' products play crucial roles in cancer progression and immune evasion.
  • Understanding their interplay is vital for developing targeted therapies.

Purpose of the Study:

  • To elucidate the interconnected roles of KRAS, MYC, and ARF6 in cancer malignancy.
  • To investigate their cooperative mechanisms in promoting immune evasion.
  • To highlight their functional relationships in the context of pancreatic cancer.

Main Methods:

  • The study discusses the functional relationships and cooperation between KRAS, MYC, and ARF6 proteins.
  • It highlights the role of G-quadruplex structures in mRNA expression.
  • The abstract focuses on the mechanistic interplay of these proteins and their impact on cellular processes.

Main Results:

  • KRAS, MYC, and ARF6 proteins exhibit inseparable functional cooperation.
  • Their interaction leads to MYC gene induction and enhanced translation of MYC and ARF6 mRNAs.
  • This cooperation activates mitochondria, promotes cancer invasion, metastasis, acidosis, and immune checkpoint activation.

Conclusions:

  • The cooperative action of KRAS, MYC, and ARF6 drives mitochondrial activation, malignancy, and immune evasion.
  • These interactions are frequently observed in pancreatic cancer and exacerbated by TP53 mutations.
  • Targeting these pathways may offer novel therapeutic strategies for cancer treatment.
Keywords:
AMAP1ARF6Cancer immune evasionCancer malignancyG-quadruplex structureKRASMYCMitochondriaTP53eIF4AmTOR

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