Cited by 35Metabolism, Diabetes, and CancerCancer, Hypoxia, and MetabolismCancer, Lipids, and Metabolism

Impact of diabetes on promoting the growth of breast cancer

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Chou, Ping‐Chieh, Choi, Hyun Ho, Huang, Yizhi, Fuentes‐Mattei, Enrique, Velazquez‐Torres, Guermarie, Zhang, Fanmao, Phan, Liem, Lee, Jaehyuk +7 more·2021·Cancer Communications

Abstract

Background: Type II diabetes mellitus (DM2) is a significant risk factor for cancers, including breast cancer. However, a proper diabetic breast cancer mouse model is not well‐established for treatment strategy design. Additionally, the precise diabetic signaling pathways that regulate cancer growth remain unresolved. In the present study, we established a suitable mouse model and demonstrated the pathogenic role of diabetes on breast cancer progression. Methods: We successfully generated a transgenic mouse model of human epidermal growth factor receptor 2 positive (Her2 + or ERBB2) breast cancer with DM2 by crossing leptin receptor mutant ( Lepr db/+ ) mice with MMTV‐ ErbB2 /neu) mice. The mouse models were administrated with antidiabetic drugs to assess the impacts of controlling DM2 in affecting tumor growth. Magnetic resonance spectroscopic imaging was employed to analyze the tumor metabolism. Results: Treatment with metformin/rosiglitazone in MMTV‐ ErbB2 / Lepr db/db mouse model reduced serum insulin levels, prolonged overall survival, decreased cumulative tumor incidence, and inhibited tumor progression. Anti‐insulin resistance medications also inhibited glycolytic metabolism in tumors in vivo as indicated by the reduced metabolic flux of hyperpolarized 13 C pyruvate‐to‐lactate reaction. The tumor cells from MMTV‐ ErbB2 / Lepr db/db transgenic mice treated with metformin had reprogrammed metabolism by reducing levels of both oxygen consumption and lactate production. Metformin decreased the expression of Myc and pyruvate kinase isozyme 2 (PKM2), leading to metabolism reprogramming. Moreover, metformin attenuated the mTOR/AKT signaling pathway and altered adipokine profiles. Conclusions: MMTV‐ ErbB2 / Lepr db/db mouse model was able to recapitulate diabetic HER2 + human breast cancer. Additionally, our results defined the signaling pathways deregulated in HER2 + breast cancer under diabetic condition, which can be intervened by anti‐insulin resistance therapy.

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Authors
Chou, P., Choi, H. H., Huang, Y., Fuentes‐Mattei, E., Velazquez‐Torres, G., Zhang, F., Phan, L., Lee, J., Shi, Y., Bankson, J. A., Wu, Y., Wang, H., Zhao, R., Yeung, S. J., & Lee, M.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • Sixth Affiliated Hospital of Sun Yat-sen University (CN)
  • the University of Texas MD Anderson Cancer Center
  • Sun Yat-sen University Cancer Center (CN)
Corresponding author
  • Zhao, Ruiying
  • Yeung, Sai‐Ching Jim
  • Lee, Mong‐Hong
Venue
Cancer Communications
Published
2021-02-20
Volume
41
Issue
5
Pages
414-431
ISSN
  • 1000-467X (ISSN-L)
  • 2523-3548
OpenAlex
W3129958206
Cited by
35
References
54
Citations by year
2026: 4 · 2025: 9 · 2024: 5 · 2023: 9 · 2022: 7 · 2021: 1
FWCI
1.73
Type
journal article
Language
en
Open access
Locations
  • 癌症:英文版 (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Fidelity Foundation (2020YFA0803300)
  • National Natural Science Foundation of China (81702749, 81630072, 81773098, 81803568, 8160242)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
type 2 diabetes, breast cancer, HER2-positive breast cancer, metformin, rosiglitazone, insulin resistance, tumor metabolic reprogramming, glycolysis, lactic acid production, c-Myc, PKM2, Akt/mTOR signaling, adipokines, diabetes treatment
MeSH terms
Animals, Breast Neoplasms, Diabetes Mellitus, Type 2, Disease Models, Animal, Female, Humans, Mice, Transgenic, Signal Transduction, Mice

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