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Sun Z, Liu H, Hu Y, Luo G, Yuan Z, Liu W, Tu B, Ruan H, Li J, Fan C. KLF2/PPARγ axis contributes to trauma-induced heterotopic ossification by regulating mitochondrial dysfunction. Cell Prolif 2024; 57:e13521. [PMID: 37340819 PMCID: PMC10771107 DOI: 10.1111/cpr.13521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 05/28/2023] [Accepted: 06/06/2023] [Indexed: 06/22/2023] Open
Abstract
Trauma-induced heterotopic ossification (HO) is a complex disorder after musculoskeletal injury and characterized by aberrant extraskeletal bone formation. Recent studies shed light on critical role of dysregulated osteogenic differentiation in aberrant bone formation. Krupel-like factor 2 (KLF2) and peroxisome proliferator-activated receptor gamma (PPARγ) are master adapter proteins that link cellular responses to osteogenesis; however, their roles and relationships in HO remain elusive. Using a murine burn/tenotomy model in vivo, we identified elevated KLF2 and reduced PPARγ levels in tendon stem/progenitor cells (TSPCs) during trauma-induced HO formation. Both KLF2 inhibition and PPARγ promotion reduced mature HO, whereas the effects of PPARγ promotion were abolished by KLF2 overexpression. Additionally, mitochondrial dysfunction and reactive oxygen species (ROS) production also increased after burn/tenotomy, and improvements in mitochondrial function (ROS scavenger) could alleviate HO formation, but were abolished by KLF2 activation and PPARγ suppression by affecting redox balance. Furthermore, in vitro, we found increased KLF2 and decreased PPARγ levels in osteogenically induced TSPCs. Both KLF2 inhibition and PPARγ promotion relieved osteogenesis by improving mitochondrial function and maintaining redox balance, and effects of PPARγ promotion were abolished by KLF2 overexpression. Our findings suggest that KLF2/PPARγ axis exerts regulatory effects on trauma-induced HO through modulation of mitochondrial dysfunction and ROS production in TSPCs by affecting redox balance. Targeting KLF2/PPARγ axis and mitochondrial dysfunction can represent attractive approaches to therapeutic intervention in trauma-induced HO.
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Affiliation(s)
- Ziyang Sun
- Department of OrthopedicsShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue RegenerationShanghaiChina
| | - Hang Liu
- Department of OrthopedicsShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue RegenerationShanghaiChina
| | - Yuehao Hu
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Gang Luo
- Department of OrthopedicsShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue RegenerationShanghaiChina
| | - Zhengqiang Yuan
- Department of OrthopedicsShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue RegenerationShanghaiChina
| | - Weixuan Liu
- Department of OrthopedicsShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue RegenerationShanghaiChina
| | - Bing Tu
- Department of OrthopedicsShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue RegenerationShanghaiChina
| | - Hongjiang Ruan
- Department of OrthopedicsShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue RegenerationShanghaiChina
| | - Juehong Li
- Department of OrthopedicsShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue RegenerationShanghaiChina
| | - Cunyi Fan
- Department of OrthopedicsShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue RegenerationShanghaiChina
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Liu W, Zu L, Wang S, Li J, Fei X, Geng M, Zhu C, Shi H. Tailored biomedical materials for wound healing. BURNS & TRAUMA 2023; 11:tkad040. [PMID: 37899884 PMCID: PMC10605015 DOI: 10.1093/burnst/tkad040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 05/25/2023] [Accepted: 06/30/2023] [Indexed: 10/31/2023]
Abstract
Wound healing is a long-term, multi-stage biological process that mainly includes haemostatic, inflammatory, proliferative and tissue remodelling phases. Controlling infection and inflammation and promoting tissue regeneration can contribute well to wound healing. Smart biomaterials offer significant advantages in wound healing because of their ability to control wound healing in time and space. Understanding how biomaterials are designed for different stages of wound healing will facilitate future personalized material tailoring for different wounds, making them beneficial for wound therapy. This review summarizes the design approaches of biomaterials in the field of anti-inflammatory, antimicrobial and tissue regeneration, highlights the advanced precise control achieved by biomaterials in different stages of wound healing and outlines the clinical and practical applications of biomaterials in wound healing.
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Affiliation(s)
- Wenhui Liu
- Clinical laboratory, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Lihua Zu
- Clinical laboratory, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
| | - Shanzheng Wang
- Department of Orthopaedics, Zhongda Hospital, Medical School of Southeast University, 87 Ding Jia Qiao Road, Nanjing, Jiangsu 210009, P.R. China
| | - Jingyao Li
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xiaoyuan Fei
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Meng Geng
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Chunlei Zhu
- Department of Orthopaedics, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
| | - Hui Shi
- Clinical laboratory, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
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Zhou Q, Chen W, Gu C, Liu H, Hu X, Deng L, He W, Xu Y, Zhu X, Yang H, Chen X, He F, Liu T. Selenium-modified bone cement promotes osteoporotic bone defect repair in ovariectomized rats by restoring GPx1-mediated mitochondrial antioxidant functions. Regen Biomater 2023; 10:rbad011. [PMID: 36852397 PMCID: PMC9960915 DOI: 10.1093/rb/rbad011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/15/2023] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
Over-accumulation of reactive oxygen species (ROS) causes mitochondrial dysfunction and impairs the osteogenic potential of bone marrow-derived mesenchymal stem cells (BMMSCs). Selenium (Se) protects BMMSCs from oxidative stress-induced damage; however, it is unknown whether Se supplementation can promote the repair of osteoporotic bone defects by rescuing the impaired osteogenic potential of osteoporotic BMMSCs (OP-BMMSCs). In vitro treatment with sodium selenite (Na2SeO3) successfully improved the osteogenic differentiation of OP-BMMSCs, as demonstrated by increased matrix mineralization and up-regulated osteogenic genes expression. More importantly, Na2SeO3 restored the impaired mitochondrial functions of OP-BMMSCs, significantly up-regulated glutathione peroxidase 1 (GPx1) expression and attenuated the intracellular ROS and mitochondrial superoxide. Silencing of Gpx1 completely abrogated the protective effects of Na2SeO3 on mitochondrial functions of OP-BMMSCs, suggesting the important role of GPx1 in protecting OP-BMMSCs from oxidative stress. We further fabricated Se-modified bone cement based on silk fibroin and calcium phosphate cement (SF/CPC). After 8 weeks of implantation, Se-modified bone cement significantly promoted bone defect repair, evidenced by the increased new bone tissue formation and enhanced GPx1 expression in ovariectomized rats. These findings revealed that Se supplementation rescued mitochondrial functions of OP-BMMSCs through activation of the GPx1-mediated antioxidant pathway, and more importantly, supplementation with Se in SF/CPC accelerated bone regeneration in ovariectomized rats, representing a novel strategy for treating osteoporotic bone fractures or defects.
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Affiliation(s)
| | | | | | - Hao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Xiayu Hu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Lei Deng
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Wei He
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Yong Xu
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Xuesong Zhu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Huilin Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China,Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China
| | - Xi Chen
- Correspondence address. Tel: +86 519 68870891, E-mail: (X.C.); Tel: +86 512 67781420, E-mail: (T.L.); Tel: +86 512 67781420, E-mail: (F.H.)
| | - Fan He
- Correspondence address. Tel: +86 519 68870891, E-mail: (X.C.); Tel: +86 512 67781420, E-mail: (T.L.); Tel: +86 512 67781420, E-mail: (F.H.)
| | - Tao Liu
- Correspondence address. Tel: +86 519 68870891, E-mail: (X.C.); Tel: +86 512 67781420, E-mail: (T.L.); Tel: +86 512 67781420, E-mail: (F.H.)
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Cao D, Ding J. Recent advances in regenerative biomaterials. Regen Biomater 2022; 9:rbac098. [PMID: 36518879 PMCID: PMC9745784 DOI: 10.1093/rb/rbac098] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/23/2022] [Accepted: 12/01/2022] [Indexed: 07/22/2023] Open
Abstract
Nowadays, biomaterials have evolved from the inert supports or functional substitutes to the bioactive materials able to trigger or promote the regenerative potential of tissues. The interdisciplinary progress has broadened the definition of 'biomaterials', and a typical new insight is the concept of tissue induction biomaterials. The term 'regenerative biomaterials' and thus the contents of this article are relevant to yet beyond tissue induction biomaterials. This review summarizes the recent progress of medical materials including metals, ceramics, hydrogels, other polymers and bio-derived materials. As the application aspects are concerned, this article introduces regenerative biomaterials for bone and cartilage regeneration, cardiovascular repair, 3D bioprinting, wound healing and medical cosmetology. Cell-biomaterial interactions are highlighted. Since the global pandemic of coronavirus disease 2019, the review particularly mentions biomaterials for public health emergency. In the last section, perspectives are suggested: (i) creation of new materials is the source of innovation; (ii) modification of existing materials is an effective strategy for performance improvement; (iii) biomaterial degradation and tissue regeneration are required to be harmonious with each other; (iv) host responses can significantly influence the clinical outcomes; (v) the long-term outcomes should be paid more attention to; (vi) the noninvasive approaches for monitoring in vivo dynamic evolution are required to be developed; (vii) public health emergencies call for more research and development of biomaterials; and (viii) clinical translation needs to be pushed forward in a full-chain way. In the future, more new insights are expected to be shed into the brilliant field-regenerative biomaterials.
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Affiliation(s)
- Dinglingge Cao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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