Cited by 220Genomics, phytochemicals, and oxidative stressFerroptosis and cancer prognosisCancer, Hypoxia, and Metabolism

Synergy between the KEAP1/NRF2 and PI3K Pathways Drives Non-Small-Cell Lung Cancer with an Altered Immune Microenvironment

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Best, Sarah A., De Souza, David P., Kersbergen, Ariena, Policheni, Antonia N., Dayalan, Saravanan, Tull, Dedreia, Rathi, Vivek, Gray, Daniel H. +3 more·2018·Cell Metabolism

Abstract

The lung presents a highly oxidative environment, which is tolerated through engagement of tightly controlled stress response pathways. A critical stress response mediator is the transcription factor nuclear factor erythroid-2-related factor 2 (NFE2L2/NRF2), which is negatively regulated by Kelch-like ECH-associated protein 1 (KEAP1). Alterations in the KEAP1/NRF2 pathway have been identified in 23% of lung adenocarcinomas, suggesting that deregulation of the pathway is a major cancer driver. We demonstrate that inactivation of Keap1 and Pten in the mouse lung promotes adenocarcinoma formation. Notably, metabolites identified in the plasma of Keap1 f/f/Pten f/f tumor-bearing mice indicate that tumorigenesis is associated with reprogramming of the pentose phosphate pathway. Furthermore, the immune milieu was dramatically changed by Keap1 and Pten deletion, and tumor regression was achieved utilizing immune checkpoint inhibition. Thus, our study highlights the ability to exploit both metabolic and immune characteristics in the detection and treatment of lung tumors harboring KEAP1/NRF2 pathway alterations.

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Authors
Best, S. A., De Souza, D. P., Kersbergen, A., Policheni, A. N., Dayalan, S., Tull, D., Rathi, V., Gray, D. H., Ritchie, M. E., McConville, M. J., & Sutherland, K. D.
Affiliations
  • The University of Melbourne (AU)
  • Walter and Eliza Hall Institute of Medical Research (AU)
Corresponding author
Sutherland, Kate D.
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2018-04
Volume
27
Issue
4
Pages
935-943.e4
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2792459030
Cited by
217
References
47
Citations by year
2026: 12 · 2025: 22 · 2024: 21 · 2023: 23 · 2022: 35 · 2021: 38 · 2020: 31 · 2019: 21 · 2018: 13
FWCI
9.35
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Worldwide Cancer Research (14-0433)
  • NHMRC (1138275)
  • Victorian Cancer Agency (ECSG16001)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics, phytochemicals, and oxidative stress
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Ferroptosis and cancer prognosis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
Keywords
Nrf2/Keap1 pathway, PI3K signaling, non-small cell lung cancer, lung adenocarcinoma, PTEN, pentose phosphate pathway, tumor immune microenvironment, immune checkpoint blockade, tumor regression, oxidative stress response, cancer metabolism
MeSH terms
Kelch-Like ECH-Associated Protein 1, Loss of Function Mutation, Adenocarcinoma of Lung, Animals, Carcinoma, Non-Small-Cell Lung, Humans, Lung Neoplasms, Mice, Mutant Strains, Pentose Phosphate Pathway, Gene Expression Regulation, Neoplastic, Phosphatidylinositol 3-Kinases, PTEN Phosphohydrolase, NF-E2-Related Factor 2, Carcinogenesis

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