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McDowell SA, Milette S, Doré S, Yu MW, Sorin M, Wilson L, Desharnais L, Cristea A, Varol O, Atallah A, Swaby A, Breton V, Arabzadeh A, Petrecca S, Loucif H, Bhagrath A, De Meo M, Lach KD, Issac MS, Fiset B, Rayes RF, Mandl JN, Fritz JH, Fiset PO, Holt PR, Dannenberg AJ, Spicer JD, Walsh LA, Quail DF. Obesity alters monocyte developmental trajectories to enhance metastasis. J Exp Med 2023; 220:e20220509. [PMID: 37166450 PMCID: PMC10182775 DOI: 10.1084/jem.20220509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 02/27/2023] [Accepted: 04/19/2023] [Indexed: 05/12/2023] Open
Abstract
Obesity is characterized by chronic systemic inflammation and enhances cancer metastasis and mortality. Obesity promotes breast cancer metastasis to lung in a neutrophil-dependent manner; however, the upstream regulatory mechanisms of this process remain unknown. Here, we show that obesity-induced monocytes underlie neutrophil activation and breast cancer lung metastasis. Using mass cytometry, obesity favors the expansion of myeloid lineages while restricting lymphoid cells within the peripheral blood. RNA sequencing and flow cytometry revealed that obesity-associated monocytes resemble professional antigen-presenting cells due to a shift in their development and exhibit enhanced MHCII expression and CXCL2 production. Monocyte induction of the CXCL2-CXCR2 axis underlies neutrophil activation and release of neutrophil extracellular traps to promote metastasis, and enhancement of this signaling axis is observed in lung metastases from obese cancer patients. Our findings provide mechanistic insight into the relationship between obesity and cancer by broadening our understanding of the interactive role that myeloid cells play in this process.
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Affiliation(s)
- Sheri A.C. McDowell
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Physiology, McGill University, Montreal, Canada
| | - Simon Milette
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Canada
| | - Samuel Doré
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Human Genetics, McGill University, Montreal, Canada
| | - Miranda W. Yu
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Physiology, McGill University, Montreal, Canada
| | - Mark Sorin
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Human Genetics, McGill University, Montreal, Canada
| | - Liam Wilson
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Physiology, McGill University, Montreal, Canada
| | - Lysanne Desharnais
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Human Genetics, McGill University, Montreal, Canada
| | - Alyssa Cristea
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Canada
| | - Ozgun Varol
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Canada
| | - Aline Atallah
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Canada
| | - Anikka Swaby
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Canada
| | - Valérie Breton
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
| | | | - Sarah Petrecca
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Canada
| | - Hamza Loucif
- Department of Microbiology and Immunology, McGill University, Montreal, Canada
- McGill University Research Centre on Complex Traits, Montreal, Canada
| | - Aanya Bhagrath
- Department of Physiology, McGill University, Montreal, Canada
- McGill University Research Centre on Complex Traits, Montreal, Canada
| | - Meghan De Meo
- Department of Experimental Surgery, McGill University, Montreal, Canada
| | - Katherine D. Lach
- Department of Pathology, Faculty of Medicine, McGill University, Montreal, Canada
| | - Marianne S.M. Issac
- Department of Pathology, Faculty of Medicine, McGill University, Montreal, Canada
| | - Benoit Fiset
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
| | - Roni F. Rayes
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
| | - Judith N. Mandl
- Department of Physiology, McGill University, Montreal, Canada
- Department of Microbiology and Immunology, McGill University, Montreal, Canada
- McGill University Research Centre on Complex Traits, Montreal, Canada
| | - Jörg H. Fritz
- Department of Microbiology and Immunology, McGill University, Montreal, Canada
- McGill University Research Centre on Complex Traits, Montreal, Canada
| | - Pierre O. Fiset
- Department of Pathology, Faculty of Medicine, McGill University, Montreal, Canada
| | - Peter R. Holt
- Laboratory of Biochemical Genetics and Metabolism, Rockefeller University, New Nork, NY, USA
| | - Andrew J. Dannenberg
- Department of Medicine (retired), Weill Cornell Medical College, New York, NY, USA
| | - Jonathan D. Spicer
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Canada
- Department of Surgery, McGill University Health Centre, Montreal, Canada
| | - Logan A. Walsh
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Human Genetics, McGill University, Montreal, Canada
| | - Daniela F. Quail
- Rosalind and Morris Goodman Cancer Institute, Montreal, Canada
- Department of Physiology, McGill University, Montreal, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Canada
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