1. In-situ gelation of fibrin gel encapsulating platelet-rich plasma-derived exosomes promotes rotator cuff healing.
- Author
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Li, Molin, Shi, Lin, Chen, Xianghui, Yi, Dan, Ding, Yufei, Chen, Jian, Xing, Guanghui, Chen, Siming, Wang, Li, Zhang, Yongyi, Zhu, Yaqiong, and Wang, Yuexiang
- Subjects
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ROTATOR cuff , *PLATELET-rich fibrin , *CARTILAGE regeneration , *HEALING , *FIBRIN , *EXOSOMES - Abstract
Although platelet-rich plasma-derived exosomes (PRP-Exos) hold significant repair potential, their efficacy in treating rotator cuff tear (RCT) remains unknown. In light of the potential for clinical translation of fibrin gel and PRP-Exos, we evaluated their combined impact on RCT healing and explored suitable gel implantation techniques. In vitro experiments demonstrated that PRP-Exos effectively enhanced key phenotypes changes in tendon stem/progenitor cells. Multi-modality imaging, including conventional ultrasound, shear wave elastography ultrasound, and micro-computed tomography, and histopathological assessments were performed to collectively evaluate the regenerative effects on RCT. The regenerated tendons exhibited a well-ordered structure, while bone and cartilage regeneration were significantly improved. PRP-Exos participated in the healing process of RCT. In-situ gelation of fibrin gel-encapsulated PRP-Exos at the bone-tendon interface during surgery proved to be a feasible gel implantation method that benefits the healing outcome. Comprehensive multi-modality postoperative evaluations were necessary, providing a reliable foundation for post-injury repair. In this study, the authors have investigated if the implantation of fibrin gel loaded with platelet-rich plasma-derived exosomes is a feasible strategy to treat rotator cuff injuries. In fact, this strategy proved to promote tendon repair and healing outcomes in a rabbit model of rotator cuff injury. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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