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Shi Q, Xu J, Chen C, Hu X, Wang B, Zeng F, Ren T, Huang Y, Guo W, Tang X, Ji T. Direct contact between tumor cells and platelets initiates a FAK-dependent F3/TGF-β positive feedback loop that promotes tumor progression and EMT in osteosarcoma. Cancer Lett 2024; 591:216902. [PMID: 38641310 DOI: 10.1016/j.canlet.2024.216902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/31/2024] [Accepted: 04/15/2024] [Indexed: 04/21/2024]
Abstract
Platelets have received growing attention for their roles in hematogenous tumor metastasis. However, the tumor-platelet interaction in osteosarcoma (OS) remains poorly understood. Here, using platelet-specific focal adhesion kinase (FAK)-deficient mice, we uncover a FAK-dependent F3/TGF-β positive feedback loop in OS. Disruption of the feedback loop by inhibition of F3, TGF-β, or FAK significantly suppresses OS progression. We demonstrate that OS F3 initiated the feedback loop by increasing platelet TGF-β secretion, and platelet-derived TGF-β promoted OS F3 expression in turn and modulated OS EMT process. Immunofluorescence results indicate platelet infiltration in OS niche and we verified it was mediated by platelet FAK. In addition, platelet FAK was proved to mediate platelet adhesion to OS cells, which was vital for the initiation of F3/TGF-β feedback loop. Collectively, these findings provide a rationale for novel therapeutic strategies targeting tumor-platelet interplay in metastatic OS.
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Affiliation(s)
- Qianyu Shi
- Department of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China; Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Jiuhui Xu
- Department of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China; Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Chenglong Chen
- Department of Orthopedics, Beijing Jishuitan Hospital, Beijing, China
| | - Xueyu Hu
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, Beijing, China
| | - Boyang Wang
- Department of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China; Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Fanwei Zeng
- Department of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China; Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Tingting Ren
- Department of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China; Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Yi Huang
- Department of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China; Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Wei Guo
- Department of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China; Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Xiaodong Tang
- Department of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China; Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Tao Ji
- Department of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China; Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
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