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LKB1 deficiency-induced metabolic reprogramming in tumorigenesis and non-neoplastic diseases

Yanghe Zhang1, Qingfei Meng1, Qianhui Sun2

  • 1Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, 130021, China.

Molecular Metabolism
|December 5, 2020
PubMed
Abstract

Insights

Loss of Live kinase B1 (LKB1) promotes cancer and non-neoplastic diseases through metabolic reprogramming. Understanding LKB1

Area of Science:

  • Oncology
  • Metabolic Diseases
  • Immunology

Background:

  • Live kinase B1 (LKB1) is a tumor suppressor crucial for regulating cellular metabolism and maintaining normal cell function.
  • Mutations in LKB1 are linked to Peutz-Jeghers syndrome (PJS) and various cancers, where its deficiency drives metabolic alterations promoting tumorigenesis.
  • LKB1's role extends to maintaining cellular phenotypes in non-neoplastic diseases and regulating immune cell functions.

Purpose of the Study:

  • To provide an overview of metabolic alterations associated with aberrant LKB1 signaling in cancer and non-neoplastic diseases.
  • To explore the impact of LKB1 deficiency on glycolysis, aerobic oxidation, pentose phosphate pathway (PPP), gluconeogenesis, glutamine, lipid, and serine metabolism.
  • To highlight the role of LKB1 in immune cell function and its implications for immunoregulation.

Main Methods:

  • Review of existing scientific literature and evidence.
  • Analysis of metabolic pathways affected by LKB1 deficiency.
  • Synthesis of findings related to LKB1's role in tumorigenesis, non-neoplastic diseases, and immune cell function.

Main Results:

  • LKB1 deficiency induces significant metabolic reprogramming, conferring growth and survival advantages to cancer cells.
  • Disordered metabolism in glucose, glutamine, lipid, and serine due to LKB1 loss promotes carcinogenesis and non-neoplastic diseases.
  • LKB1's metabolic regulation is vital for maintaining cellular phenotypes and plays a key role in immune cell activity and differentiation.

Conclusions:

  • Understanding LKB1-regulated metabolic pathways is essential for developing targeted therapies for cancers and metabolic diseases.
  • Targeting these metabolic pathways can lead to novel drug combinations for improved treatment outcomes and effective immunoregulation.
  • LKB1's multifaceted role in metabolism underscores its importance as a therapeutic target across diverse diseases.
Keywords:
GlucoseImmune cellLKB1LipidMetabolismTumorigenesis

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