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Tang Y, Chen C, Liu F, Xie S, Qu J, Li M, Li Z, Li X, Shi Q, Li S, Li X, Hu J, Lu H. Structure and ingredient-based biomimetic scaffolds combining with autologous bone marrow-derived mesenchymal stem cell sheets for bone-tendon healing. Biomaterials 2020; 241:119837. [PMID: 32109704 DOI: 10.1016/j.biomaterials.2020.119837] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 01/10/2020] [Accepted: 01/30/2020] [Indexed: 12/21/2022]
Abstract
Tendon attaches to bone across a robust fibrocartilaginous tissue termed the bone-tendon interface (BTI), commonly injured in the field of sports medicine and orthopedics with poor prognosis. So far, there is still a lack of effective clinical interventions to achieve functional healing post BTI injury. However, tissue-engineering may be a promising treatment strategy. In this study, a gradient book-type triphasic (bone-fibrocartilage-tendon) scaffold is fabricated based on the heterogeneous structure and ingredient of BTI. After decellularization, the scaffold exhibits no residual cells, while the characteristic extracellular matrix of the original bone, fibrocartilage and tendon is well preserved. Meanwhile, the bone, fibrocartilage and tendon regions of the acellular scaffold are superior in osteogenic, chondrogenic and tenogenic inducibility, respectively. Furthermore, autologous bone marrow mesenchymal stem cell (BMSC) sheets (CS) combined with the acellular scaffolds is transplanted into the lesion site of a rabbit BTI injury model to investigate the therapeutic effects. Our results show that the CS modified scaffold not only successfully achieves triple biomimetic of BTI in structure, ingredient and cell distribution, but also effectively accelerates bone-tendon (B-T) healing. In general, this work demonstrates book-type acellular triphasic scaffold combined with autologous BMSCs sheets is a promising graft for repairing BTI injury.
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Affiliation(s)
- Yifu Tang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, People's Republic of China
| | - Can Chen
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Research Centre of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
| | - Fei Liu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, 410008, People's Republic of China
| | - Shanshan Xie
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, People's Republic of China; Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, 410008, People's Republic of China
| | - Jin Qu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
| | - Muzhi Li
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, People's Republic of China
| | - Zan Li
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, People's Republic of China
| | - Xiaoning Li
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
| | - Qiang Shi
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, People's Republic of China
| | - Shengcan Li
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, People's Republic of China
| | - Xing Li
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, People's Republic of China
| | - Jianzhong Hu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, People's Republic of China; Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China.
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, People's Republic of China; Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, 410008, People's Republic of China.
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