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Yin H, Mao K, Huang Y, Guo A, Shi L. Tendon stem/progenitor cells are promising reparative cell sources for multiple musculoskeletal injuries of concomitant articular cartilage lesions associated with ligament injuries. J Orthop Surg Res 2023; 18:869. [PMID: 37968672 PMCID: PMC10647040 DOI: 10.1186/s13018-023-04313-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/23/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Trauma-related articular cartilage lesions usually occur in conjunction with ligament injuries. Torn ligaments are frequently reconstructed with tendon autograft and has been proven to achieve satisfactory clinical outcomes. However, treatments for the concomitant articular cartilage lesions are still very insufficient. The current study was aimed to evaluate whether stem cells derived from tendon tissue can be considered as an alternative reparative cell source for cartilage repair. METHODS Primary human tendon stem/progenitor cells (hTSPCs) were isolated from 4 male patients (32 ± 8 years) who underwent ACL reconstruction surgery with autologous semitendinosus and gracilis tendons. The excessive tendon tissue after graft preparation was processed for primary cell isolation with an enzyme digestion protocol. Decellularization cartilage matrix (DCM) was used to provide a chondrogenic microenvironment for hTSPCs. Cell viability, cell morphology on the DCM, as well as their chondrogenic differentiation were evaluated. RESULTS DAPI staining and DNA quantitative analysis (61.47 μg per mg dry weight before and 2.64 μg/mg after decellularization) showed that most of the cells in the cartilage lacuna were removed after decellularization process. Whilst, the basic structure of the cartilage tissue was preserved and the main ECM components, collagen type II and sGAG were retained after decellularization, which were revealed by DMMB assay and histology. Live/dead staining and proliferative assay demonstrated that DCM supported attachment, survival and proliferation of hTSPCs with an excellent biocompatibility. Furthermore, gene expression analysis indicated that chondrogenic differentiation of hTSPC was induced by the DCM microenvironment, with upregulation of chondrogenesis-related marker genes, COL 2 and SOX9, without the use of exogenous growth factors. CONCLUSION DCM supported hTSPCs attachment and proliferation with high biocompatibility. Moreover, TSPCs underwent a distinct chondrogenesis after the induction of a chondrogenic microenvironment provided by DCM. These results indicated that TSPCs are promising reparative cell sources for promoting cartilage repair. Particularly, in the cohort that articular cartilage lesions occur in conjunction with ligament injuries, autologous TSPCs can be isolated from a portion of the tendon autograph harvested for ligaments reconstruction. In future clinical practice, combined ligament reconstruction with TSPCs- based therapy for articular cartilage repair can to be considered to achieve superior repair of these associated injuries, in which autologous TSPCs can be isolated from a portion of the tendon autograph harvested for ligaments reconstruction.
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Affiliation(s)
- Heyong Yin
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100053, China
| | - Kelei Mao
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100053, China
| | - Yufu Huang
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100053, China
| | - Ai Guo
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100053, China.
| | - Lin Shi
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100053, China.
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Micropattern Silk Fibroin Film Facilitates Tendon Repair In Vivo and Promotes Tenogenic Differentiation of Tendon Stem/Progenitor Cells through the α2 β1/FAK/PI3K/AKT Signaling Pathway In Vitro. Stem Cells Int 2023; 2023:2915826. [PMID: 36684388 PMCID: PMC9859702 DOI: 10.1155/2023/2915826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 11/23/2022] [Accepted: 12/08/2022] [Indexed: 01/15/2023] Open
Abstract
Background Tendon injuries are common clinical disorders. Due to the limited regeneration ability of tendons, tissue engineering technology is often used as an adjuvant treatment. This study explored the molecular pathways underlying micropattern SF film-regulated TSPC propensity and their repairing effects to highlight the application value of micropattern SF films. Methods First, we characterized the physical properties of the micropattern SF films and explored their repairing effects on the injured tendons in vivo. Then, we seeded TSPCs on SF films in vitro and determined the micropattern SF film-induced gene expression and activation of signaling pathways in TSPCs through high-throughput RNA sequencing and proteomics assays. Results The results of in vivo studies suggested that micropattern SF films can promote remodeling of the injured tendon. In addition, immunohistochemistry (IHC) results showed that tendon marker genes were significantly increased in the micropattern SF film repair group. Transcriptomic and proteomic analyses demonstrated that micropattern SF film-induced genes and proteins in TSPCs were mainly enriched in the focal adhesion kinase (FAK)/actin and phosphoinositide 3-kinase (PI3K)/AKT pathways. Western blot analysis showed that the expression of integrins α2β1, tenascin-C (TNC), and tenomodulin (TNMD) and the phosphorylation of AKT were significantly increased in the micropattern SF film group, which could be abrogated by applying PI3K/AKT inhibitors. Conclusion Micropattern SF films modified by water annealing can promote remodeling of the injured tendon in vivo and regulate the tendon differentiation of TSPCs through the α2β1/FAK/PI3K/AKT signaling pathway in vitro. Therefore, they have great medical value in tendon repair.
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Lu K, Zhou M, Wang L, Wang Y, Tang H, He G, Wang H, Tang C, He J, Wang W, Tang K, Wang Y, Deng Z. N-Acetyl-L-cysteine facilitates tendon repair and promotes the tenogenic differentiation of tendon stem/progenitor cells by enhancing the integrin α5/β1/PI3K/AKT signaling. BMC Mol Cell Biol 2023; 24:1. [PMID: 36604630 DOI: 10.1186/s12860-022-00463-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 12/26/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Tendon injury is associated with oxidative stress, leading to reactive oxygen species (ROS) production and inflammation. N-acetyl-L-cysteine (NAC) is a potent antioxidant. However, how NAC affects the biological functions of tendon stem/progenitor cells (TSPCs) and tendon repair has not been clarified. METHOD: The impacts of NAC on the viability, ROS production, and differentiation of TSPCs were determined with the cell counting kit-8, fluorescence staining, Western blotting, and immunofluorescence. The effect of NAC on gene transcription in TSPCs was analyzed by transcriptomes and bioinformatics and validated by Western blotting. The potential therapeutic effect of NAC on tendon repair was tested in a rat model of Achilles tendon injury. RESULTS Compared with the untreated control, treatment with 500 µM NAC greatly promoted the proliferation of TSPCs and significantly mitigated hydrogen peroxide-induced ROS production and cytotoxicity in vitro. NAC treatment significantly increased the relative protein expression of collagen type 1 alpha 1 (COL1A1), tenascin C (TNC), scleraxis (SCX), and tenomodulin (TNMD) in TPSCs. Bioinformatics analyses revealed that NAC modulated transcriptomes, particularly in the integrin-related phosphoinositide 3-kinase (PI3K)/AKT signaling, and Western blotting revealed that NAC enhanced integrin α5β1 expression and PI3K/AKT activation in TSPCs. Finally, NAC treatment mitigated the tendon injury, but enhanced the protein expression of SCX, TNC, TNMD, and COLIA1 in the injured tissue regions of the rats. CONCLUSION NAC treatment promoted the survival and differentiation of TSPCs to facilitate tendon repair after tendon injury in rats. Thus, NAC may be valuable for the treatment of tendon injury.
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Affiliation(s)
- Kang Lu
- Department of Orthopedics-Spine Surgery Center, the Second Affiliated Hospital, Chongqing Medical University, No. 74 Linjiang Road, Yuzhong District, Chongqing, China
| | - Mei Zhou
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Army Medical University, Third Military Medical University, No. 29, Yanzheng Street, Gaotan, Shapingba District, Chongqing, China
| | - Liyuan Wang
- Department of Orthopedics-Spine Surgery Center, the Second Affiliated Hospital, Chongqing Medical University, No. 74 Linjiang Road, Yuzhong District, Chongqing, China
| | - Yang Wang
- Department of Orthopedics-Spine Surgery Center, the Second Affiliated Hospital, Chongqing Medical University, No. 74 Linjiang Road, Yuzhong District, Chongqing, China
| | - Hong Tang
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Army Medical University, Third Military Medical University, No. 29, Yanzheng Street, Gaotan, Shapingba District, Chongqing, China
| | - Gang He
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Army Medical University, Third Military Medical University, No. 29, Yanzheng Street, Gaotan, Shapingba District, Chongqing, China
| | - Huan Wang
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Army Medical University, Third Military Medical University, No. 29, Yanzheng Street, Gaotan, Shapingba District, Chongqing, China
| | - Chuyue Tang
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Army Medical University, Third Military Medical University, No. 29, Yanzheng Street, Gaotan, Shapingba District, Chongqing, China
| | - Jie He
- Department of Orthopedics-Spine Surgery Center, the Second Affiliated Hospital, Chongqing Medical University, No. 74 Linjiang Road, Yuzhong District, Chongqing, China
| | - Wei Wang
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Army Medical University, Third Military Medical University, No. 29, Yanzheng Street, Gaotan, Shapingba District, Chongqing, China
| | - Kanglai Tang
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Army Medical University, Third Military Medical University, No. 29, Yanzheng Street, Gaotan, Shapingba District, Chongqing, China.
| | - Yunjiao Wang
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Army Medical University, Third Military Medical University, No. 29, Yanzheng Street, Gaotan, Shapingba District, Chongqing, China.
| | - Zhongliang Deng
- Department of Orthopedics-Spine Surgery Center, the Second Affiliated Hospital, Chongqing Medical University, No. 74 Linjiang Road, Yuzhong District, Chongqing, China.
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Xue Y, Kim HJ, Lee J, Liu Y, Hoffman T, Chen Y, Zhou X, Sun W, Zhang S, Cho HJ, Lee J, Kang H, WonHyoung R, Chang-Moon L, Ahadian S, Dokmeci MR, Lei B, Lee K, Khademhosseini A. Co-Electrospun Silk Fibroin and Gelatin Methacryloyl Sheet Seeded with Mesenchymal Stem Cells for Tendon Regeneration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107714. [PMID: 35487761 PMCID: PMC9714686 DOI: 10.1002/smll.202107714] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/07/2022] [Indexed: 05/03/2023]
Abstract
Silk fibroin (SF) is a promising biomaterial for tendon repair, but its relatively rigid mechanical properties and low cell affinity have limited its application in regenerative medicine. Meanwhile, gelatin-based polymers have advantages in cell attachment and tissue remodeling but have insufficient mechanical strength to regenerate tough tissue such as tendons. Taking these aspects into account, in this study, gelatin methacryloyl (GelMA) is combined with SF to create a mechanically strong and bioactive nanofibrous scaffold (SG). The mechanical properties of SG nanofibers can be flexibly modulated by varying the ratio of SF and GelMA. Compared to SF nanofibers, mesenchymal stem cells (MSCs) seeded on SG fibers with optimal composition (SG7) exhibit enhanced growth, proliferation, vascular endothelial growth factor production, and tenogenic gene expression behavior. Conditioned media from MSCs cultured on SG7 scaffolds can greatly promote the migration and proliferation of tenocytes. Histological analysis and tenogenesis-related immunofluorescence staining indicate SG7 scaffolds demonstrate enhanced in vivo tendon tissue regeneration compared to other groups. Therefore, rational combinations of SF and GelMA hybrid nanofibers may help to improve therapeutic outcomes and address the challenges of tissue-engineered scaffolds for tendon regeneration.
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Affiliation(s)
| | | | - Junmin Lee
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Mechanical Engineering, YONSEI University, Seoul, 03722, South Korea
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA
| | - Yaowen Liu
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- College of Food Science, Sichuan Agricultural University, Yaan, 625014, China
| | - Tyler Hoffman
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yi Chen
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xingwu Zhou
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Wujin Sun
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA
| | - Shiming Zhang
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA
| | - Hyun-Jong Cho
- College of Pharmacy, Kangwon National University, Chuncheon, 23431, South Korea
| | - JiYong Lee
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Mechanical Engineering, YONSEI University, Seoul, 03722, South Korea
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA
| | - Heemin Kang
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, South Korea
| | - Ryu WonHyoung
- Department of Mechanical Engineering, YONSEI University, Seoul, 03722, South Korea
| | - Lee Chang-Moon
- Department of Healthcare and Biomedical Engineering, Chonnam National University, Yeosu, 59626, South Korea
| | - Samad Ahadian
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA
| | - Mehmet R. Dokmeci
- Department of Bioengineering and Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA
| | - Bo Lei
- Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710000, China
| | - KangJu Lee
- Corresponding authors: (KangJu Lee), (Ali Khademhosseini)
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