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Verma S, Giagnocavo SD, Curtin MC, Arumugam M, Osburn-Staker SM, Wang G, Atkinson A, Nix DA, Lum DH, Cox JE, Hilgendorf KI. Zinc Alpha-2-Glycoprotein (ZAG/AZGP1) secreted by triple-negative breast cancer promotes tumor microenvironment fibrosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.04.583349. [PMID: 38496643 PMCID: PMC10942361 DOI: 10.1101/2024.03.04.583349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Obesity is a predisposition factor for breast cancer, suggesting a localized, reciprocal interaction between breast cancer cells and the surrounding mammary white adipose tissue. To investigate how breast cancer cells alter the composition and function of adipose tissue, we screened the secretomes of ten human breast cancer cell lines for the ability to modulate the differentiation of adipocyte stem and progenitor cells (ASPC). The screen identified a key adipogenic modulator, Zinc Alpha-2-Glycoprotein (ZAG/AZGP1), secreted by triple-negative breast cancer (TNBC) cells. TNBC-secreted ZAG inhibits adipogenesis and instead induces the expression of fibrotic genes. Accordingly, depletion of ZAG in TNBC cells attenuates fibrosis in white adipose tissue and inhibits tumor growth. Further, high expression of ZAG in TNBC patients, but not other clinical subtypes of breast cancer, is linked to poor prognosis. Our findings suggest a role of TNBC-secreted ZAG in promoting the transdifferentiation of ASPCs into cancer-associated fibroblasts to support tumorigenesis.
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Affiliation(s)
- Surbhi Verma
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | | | - Meghan C Curtin
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Menusha Arumugam
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Sandra M Osburn-Staker
- Metabolomics, Proteomics and Mass Spectrometry Core, School of Medicine, University of Utah, Salt Lake City, UT, USA
| | - Guoying Wang
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Aaron Atkinson
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - David A Nix
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - David H Lum
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - James E Cox
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
- Metabolomics, Proteomics and Mass Spectrometry Core, School of Medicine, University of Utah, Salt Lake City, UT, USA
| | - Keren I Hilgendorf
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
- Lead contact:
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Xiong J, Xiao R, Zhao J, Zhao Q, Luo M, Li F, Zhang W, Wu M. Matrix stiffness affects tumor-associated macrophage functional polarization and its potential in tumor therapy. J Transl Med 2024; 22:85. [PMID: 38246995 PMCID: PMC10800063 DOI: 10.1186/s12967-023-04810-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 12/17/2023] [Indexed: 01/23/2024] Open
Abstract
The extracellular matrix (ECM) plays critical roles in cytoskeletal support, biomechanical transduction and biochemical signal transformation. Tumor-associated macrophage (TAM) function is regulated by matrix stiffness in solid tumors and is often associated with poor prognosis. ECM stiffness-induced mechanical cues can activate cell membrane mechanoreceptors and corresponding mechanotransducers in the cytoplasm, modulating the phenotype of TAMs. Currently, tuning TAM polarization through matrix stiffness-induced mechanical stimulation has received increasing attention, whereas its effect on TAM fate has rarely been summarized. A better understanding of the relationship between matrix stiffness and macrophage function will contribute to the development of new strategies for cancer therapy. In this review, we first introduced the overall relationship between macrophage polarization and matrix stiffness, analyzed the changes in mechanoreceptors and mechanotransducers mediated by matrix stiffness on macrophage function and tumor progression, and finally summarized the effects of targeting ECM stiffness on tumor prognosis to provide insight into this new field.
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Affiliation(s)
- Jiaqiang Xiong
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Rourou Xiao
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jiahui Zhao
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Qiuyan Zhao
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Manwen Luo
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Feng Li
- Department of Medical Genetics, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China.
- Hubei Provincial Key Laboratory of Allergy and Immunology, Wuhan, 430071, China.
| | - Wei Zhang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
| | - Meng Wu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430032, China.
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