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Maguire OA, Ackerman SE, Szwed SK, Maganti AV, Marchildon F, Huang X, Kramer DJ, Rosas-Villegas A, Gelfer RG, Turner LE, Ceballos V, Hejazi A, Samborska B, Rahbani JF, Dykstra CB, Annis MG, Luo JD, Carroll TS, Jiang CS, Dannenberg AJ, Siegel PM, Tersey SA, Mirmira RG, Kazak L, Cohen P. Creatine-mediated crosstalk between adipocytes and cancer cells regulates obesity-driven breast cancer. Cell Metab 2021; 33:499-512.e6. [PMID: 33596409 PMCID: PMC7954401 DOI: 10.1016/j.cmet.2021.01.018] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 11/24/2020] [Accepted: 01/27/2021] [Indexed: 01/08/2023]
Abstract
Obesity is a major risk factor for adverse outcomes in breast cancer; however, the underlying molecular mechanisms have not been elucidated. To investigate the role of crosstalk between mammary adipocytes and neoplastic cells in the tumor microenvironment (TME), we performed transcriptomic analysis of cancer cells and adjacent adipose tissue in a murine model of obesity-accelerated breast cancer and identified glycine amidinotransferase (Gatm) in adipocytes and Acsbg1 in cancer cells as required for obesity-driven tumor progression. Gatm is the rate-limiting enzyme in creatine biosynthesis, and deletion in adipocytes attenuated obesity-driven tumor growth. Similarly, genetic inhibition of creatine import into cancer cells reduced tumor growth in obesity. In parallel, breast cancer cells in obese animals upregulated the fatty acyl-CoA synthetase Acsbg1 to promote creatine-dependent tumor progression. These findings reveal key nodes in the crosstalk between adipocytes and cancer cells in the TME necessary for obesity-driven breast cancer progression.
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Affiliation(s)
- Olivia A Maguire
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA; Weill Cornell/Rockefeller/Sloan Kettering Tri-institutional MD-PhD Program, New York, NY 10065, USA
| | - Sarah E Ackerman
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA; AAAS Science and Technology Policy Fellow in the Office of Global Health, Health Workforce Branch, U.S. Agency for International Development, Washington, D.C. 20547, USA
| | - Sarah K Szwed
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA; Weill Cornell/Rockefeller/Sloan Kettering Tri-institutional MD-PhD Program, New York, NY 10065, USA
| | - Aarthi V Maganti
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA
| | - François Marchildon
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA
| | - Xiaojing Huang
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA; Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Daniel J Kramer
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA; Weill Cornell/Rockefeller/Sloan Kettering Tri-institutional MD-PhD Program, New York, NY 10065, USA
| | | | - Rebecca G Gelfer
- Weill Cornell/Rockefeller/Sloan Kettering Tri-institutional MD-PhD Program, New York, NY 10065, USA
| | - Lauren E Turner
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA
| | - Victor Ceballos
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA
| | - Asal Hejazi
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA
| | - Bozena Samborska
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montreal, QC H3G1Y6, Canada
| | - Janane F Rahbani
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montreal, QC H3G1Y6, Canada
| | - Christien B Dykstra
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montreal, QC H3G1Y6, Canada
| | - Matthew G Annis
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada
| | - Ji-Dung Luo
- Bioinformatics Resource Center, The Rockefeller University, New York, NY 10065, USA
| | - Thomas S Carroll
- Bioinformatics Resource Center, The Rockefeller University, New York, NY 10065, USA
| | - Caroline S Jiang
- Rockefeller University Hospital, The Rockefeller University, New York, NY 10065, USA
| | - Andrew J Dannenberg
- Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA
| | - Peter M Siegel
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montreal, QC H3G1Y6, Canada
| | - Sarah A Tersey
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | | | - Lawrence Kazak
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montreal, QC H3G1Y6, Canada
| | - Paul Cohen
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, NY 10065, USA.
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Jaiswal N, Gavin MG, Quinn WJ, Luongo TS, Gelfer RG, Baur JA, Titchenell PM. The role of skeletal muscle Akt in the regulation of muscle mass and glucose homeostasis. Mol Metab 2019; 28:1-13. [PMID: 31444134 PMCID: PMC6822261 DOI: 10.1016/j.molmet.2019.08.001] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/29/2019] [Accepted: 08/01/2019] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Skeletal muscle insulin signaling is a major determinant of muscle growth and glucose homeostasis. Protein kinase B/Akt plays a prominent role in mediating many of the metabolic effects of insulin. Mice and humans harboring systemic loss-of-function mutations in Akt2, the most abundant Akt isoform in metabolic tissues, are glucose intolerant and insulin resistant. Since the skeletal muscle accounts for a significant amount of postprandial glucose disposal, a popular hypothesis in the diabetes field suggests that a reduction in Akt, specifically in skeletal muscle, leads to systemic glucose intolerance and insulin resistance. Despite this common belief, the specific role of skeletal muscle Akt in muscle growth and insulin sensitivity remains undefined. METHODS We generated multiple mouse models of skeletal muscle Akt deficiency to evaluate the role of muscle Akt signaling in vivo. The effects of these genetic perturbations on muscle mass, glucose homeostasis and insulin sensitivity were assessed using both in vivo and ex vivo assays. RESULTS Surprisingly, mice lacking Akt2 alone in skeletal muscle displayed normal skeletal muscle insulin signaling, glucose tolerance, and insulin sensitivity despite a dramatic reduction in phosphorylated Akt. In contrast, deletion of both Akt isoforms (M-AktDKO) prevented downstream signaling and resulted in muscle atrophy. Despite the absence of Akt signaling, in vivo and ex vivo insulin-stimulated glucose uptake were normal in M-AktDKO mice. Similar effects on insulin sensitivity were observed in mice with prolonged deletion (4 weeks) of both skeletal muscle Akt isoforms selectively in adulthood. Conversely, short term deletion (2 weeks) of skeletal muscle specific Akt in adult muscles impaired insulin tolerance paralleling the effect observed by acute pharmacological inhibition of Akt in vitro. Mechanistically, chronic ablation of Akt induced mitochondrial dysfunction and activation of AMPK, which was required for insulin-stimulated glucose uptake in the absence of Akt. CONCLUSIONS Together, these data indicate that chronic reduction in Akt activity alone in skeletal muscle is not sufficient to induce insulin resistance or prevent glucose uptake in all conditions. Therefore, since insulin-stimulated glucose disposal in skeletal muscle is markedly impaired in insulin-resistant states, we hypothesize that alterations in signaling molecules in addition to skeletal muscle Akt are necessary to perturb glucose tolerance and insulin sensitivity in vivo.
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Affiliation(s)
- N Jaiswal
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - M G Gavin
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - W J Quinn
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - T S Luongo
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - R G Gelfer
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - J A Baur
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - P M Titchenell
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
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