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Revisiting glucose metabolism in cancer: lessons from a PKM knock-in model

Taku Sato1, Mami Morita1, Miyuki Nomura1

  • 1Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan.

Molecular & Cellular Oncology
|September 26, 2018
PubMed

Insights

Pyruvate kinase M (PKM) isoform selection impacts glucose metabolism. Researchers identified PKM1 as a potential therapeutic target in human lung cancers, offering new insights into cancer metabolism.

Area of Science:

  • Biochemistry and Molecular Biology
  • Cancer Research
  • Metabolic Networks

Background:

  • Pyruvate kinase M (PKM) is a key glycolytic enzyme.
  • PKM isoform expression dictates the metabolic fate of glucose.
  • Altered cancer metabolism is a hallmark of tumorigenesis.

Purpose of the Study:

  • To investigate the functional roles of PKM isoforms in cellular metabolism.
  • To identify PKM isoforms as potential therapeutic targets in human cancers.
  • To elucidate the contribution of PKM isoform selection to cancer metabolism.

Main Methods:

  • Development of novel mouse models for studying PKM isoform function.
  • Analysis of PKM isoform expression in human lung cancer subsets.
  • Investigation of glucose carbon flow through metabolic networks.

Main Results:

  • PKM isoform selection significantly influences cellular metabolic pathways.
  • PKM1 was identified as a potential therapeutic target in specific human lung cancer types.
  • This study provides novel insights into the metabolic landscape of lung cancers.

Conclusions:

  • Targeting specific PKM isoforms, such as PKM1, may offer a novel therapeutic strategy for lung cancer.
  • Understanding PKM isoform function is crucial for deciphering cancer metabolism.
  • This research opens new avenues for developing targeted cancer therapies based on metabolic vulnerabilities.
Keywords:
PKMPKM1PKM2SCLCcancer metabolismglycolysispulmonary neuroendocrine tumor

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