KRAS: feeding pancreatic cancer proliferation

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Multianimal Magnetic Resonance Imaging for Tumor Measurements in Pancreatic Cancer Mouse Models
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Multianimal Magnetic Resonance Imaging for Tumor Measurements in Pancreatic Cancer Mouse Models

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Kirsten L Bryant1, Joseph D Mancias2, Alec C Kimmelman3

  • 1Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.

Trends in Biochemical Sciences
|January 7, 2014
PubMed

Insights

Oncogenic KRAS mutations drive pancreatic cancer (PDAC) growth by altering cell metabolism. Targeting these metabolic changes offers a promising new therapeutic strategy for this fatal disease.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Metabolism

Background:

  • Pancreatic ductal adenocarcinoma (PDAC) is a fatal cancer characterized by oncogenic KRAS mutations in nearly 95% of cases.
  • Despite the prevalence of KRAS mutations, effective targeted therapies remain elusive.
  • Oncogenic KRAS is known to significantly influence tumor metabolism.

Purpose of the Study:

  • To review the metabolic alterations driven by oncogenic KRAS in PDAC.
  • To explore the potential of targeting these metabolic pathways for novel PDAC treatments.

Main Methods:

  • Literature review of studies investigating KRAS mutations and metabolic reprogramming in PDAC.
  • Analysis of metabolic pathways affected by oncogenic KRAS, including glucose uptake, glutamine metabolism, autophagy, and macropinocytosis.

Main Results:

  • Oncogenic KRAS orchestrates multiple metabolic changes crucial for PDAC progression.
  • Key metabolic reprogramming includes enhanced glucose uptake, altered glucose intermediate channeling, modified glutamine metabolism, increased autophagy, and stimulated macropinocytosis.

Conclusions:

  • Understanding KRAS-driven metabolic reprogramming is essential for developing effective PDAC therapies.
  • Targeting these specific metabolic vulnerabilities presents a promising therapeutic avenue for pancreatic cancer.
Keywords:
autophagyglutaminolysisglycolysismacropinocytosismetabolism

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