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Kumar B, Khatpe AS, Guanglong J, Batic K, Bhat-Nakshatri P, Granatir MM, Addison RJ, Szymanski M, Baldridge LA, Temm CJ, Sandusky G, Althouse SK, Cote ML, Miller KD, Storniolo AM, Nakshatri H. Stromal heterogeneity may explain increased incidence of metaplastic breast cancer in women of African descent. Nat Commun 2023; 14:5683. [PMID: 37709737 PMCID: PMC10502140 DOI: 10.1038/s41467-023-41473-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/05/2023] [Indexed: 09/16/2023] Open
Abstract
The biologic basis of genetic ancestry-dependent variability in disease incidence and outcome is just beginning to be explored. We recently reported enrichment of a population of ZEB1-expressing cells located adjacent to ductal epithelial cells in normal breasts of women of African ancestry compared to those of European ancestry. In this study, we demonstrate that these cells have properties of fibroadipogenic/mesenchymal stromal cells that express PROCR and PDGFRα and transdifferentiate into adipogenic and osteogenic lineages. PROCR + /ZEB1 + /PDGFRα+ (PZP) cells are enriched in normal breast tissues of women of African compared to European ancestry. PZP: epithelial cell communication results in luminal epithelial cells acquiring basal cell characteristics and IL-6-dependent increase in STAT3 phosphorylation. Furthermore, level of phospho-STAT3 is higher in normal and cancerous breast tissues of women of African ancestry. PZP cells transformed with HRasG12V ± SV40-T/t antigens generate metaplastic carcinoma suggesting that these cells are one of the cells-of-origin of metaplastic breast cancers.
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Affiliation(s)
- Brijesh Kumar
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, UP, 221005, India
| | - Aditi S Khatpe
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Jiang Guanglong
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Katie Batic
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | | | - Maggie M Granatir
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Rebekah Joann Addison
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Megan Szymanski
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Lee Ann Baldridge
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Constance J Temm
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - George Sandusky
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Sandra K Althouse
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Michele L Cote
- Richard M. Fairbanks School of Public Health, Indiana University, Indianapolis, IN, 46202, USA
| | - Kathy D Miller
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Anna Maria Storniolo
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Harikrishna Nakshatri
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
- VA Roudebush Medical Center, Indianapolis, IN, 46202, USA.
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