Cited by 62Cancer, Hypoxia, and MetabolismMetabolism, Diabetes, and CancerLung Cancer Research Studies

Targeting MYC-enhanced glycolysis for the treatment of small cell lung cancer

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Cargill, Kasey R., Stewart, C. Allison, Park, Elizabeth M., Ramkumar, Kavya, Gay, Carl M., Cardnell, Robert J., Wang, Qi, Diao, Lixia +7 more·2021·Cancer & Metabolism

Abstract

INTRODUCTION: The transcription factor MYC is overexpressed in 30% of small cell lung cancer (SCLC) tumors and is known to modulate the balance between two major pathways of metabolism: glycolysis and mitochondrial respiration. This duality of MYC underscores the importance of further investigation into its role in SCLC metabolism and could lead to insights into metabolic targeting approaches. METHODS: We investigated differences in metabolic pathways in transcriptional and metabolomics datasets based on cMYC expression in patient and cell line samples. Metabolic pathway utilization was evaluated by flow cytometry and Seahorse extracellular flux methodology. Glycolysis inhibition was evaluated in vitro and in vivo using PFK158, a small molecular inhibitor of PFKFB3. RESULTS: MYC-overexpressing SCLC patient samples and cell lines exhibited increased glycolysis gene expression directly mediated by MYC. Further, MYC-overexpressing cell lines displayed enhanced glycolysis consistent with the Warburg effect, while cell lines with low MYC expression appeared more reliant on oxidative metabolism. Inhibition of glycolysis with PFK158 preferentially attenuated glucose uptake, ATP production, and lactate in MYC-overexpressing cell lines. Treatment with PFK158 in xenografts delayed tumor growth and decreased glycolysis gene expression. CONCLUSIONS: Our study highlights an in-depth characterization of SCLC metabolic programming and presents glycolysis as a targetable mechanism downstream of MYC that could offer therapeutic benefit in a subset of SCLC patients.

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  1. [1]N H, AM N, M K, D M, A B, M Y SEER Cancer Statistics Review (CSR) 1975-2016 2019 Bethesda National Cancer Institute
  2. [46]Berg JM, Tymoczko JL, Stryer L. The glycolytic pathway is tightly controlled. New York 2002 5th edition:[Available from: https://www.ncbi.nlm.nih.gov/books/NBK22395/.

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Authors
Cargill, K. R., Stewart, C. A., Park, E. M., Ramkumar, K., Gay, C. M., Cardnell, R. J., Wang, Q., Diao, L., Shen, L., Fan, Y.-H., Chan, W. K., Lorenzi, P. L., Oliver, T. G., Wang, J., & Byers, L. A.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • University of Utah (US)
Corresponding author
Byers, Lauren A.
Venue
Cancer & Metabolism
Published
2021-09-23
Volume
9
Issue
1
Pages
33-33
ISSN
2049-3002 (ISSN-L)
OpenAlex
W3201008556
Cited by
62
References
65
Citations by year
2026: 10 · 2025: 14 · 2024: 11 · 2023: 17 · 2022: 10
FWCI
3.78
Type
journal article
Language
en
Open access
Locations
  • Cancer & Metabolism (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Cancer Institute (P30-CA16672, R01-CA207295, U01-CA231844, U01-CA213274, U01-CA21373, T32-CA009666, R50-CA243698, S10-OD012304-01, U01-CA235510)
  • International Association for the Study of Lung Cancer
  • American Society of Clinical Oncology
  • Andrew Sabin Family Foundation
  • Abell-Hanger Foundation
  • Cancer Prevention and Research Institute of Texas
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Oncology › Lung Cancer Research Studies
Keywords
small cell lung cancer, c-Myc, glycolysis, Warburg effect, cancer metabolism, metabolic reprogramming, oxidative phosphorylation, glucose uptake, lactic acid production, xenograft tumor growth, metabolic therapy

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