1
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Chen Y, Wu J, Wong C, Gao W, Qi X, Zhou H. Disturbed glycolipid metabolism activates CXCL13-CXCR5 axis in senescent TSCs to promote heterotopic ossification. Cell Mol Life Sci 2024; 81:265. [PMID: 38880863 DOI: 10.1007/s00018-024-05302-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 05/26/2024] [Accepted: 05/28/2024] [Indexed: 06/18/2024]
Abstract
Heterotopic ossification (HO) occurs as a common complication after injury, while its risk factor and mechanism remain unclear, which restricts the development of pharmacological treatment. Clinical research suggests that diabetes mellitus (DM) patients are prone to developing HO in the tendon, but solid evidence and mechanical research are still needed. Here, we combined the clinical samples and the DM mice model to identify that disordered glycolipid metabolism aggravates the senescence of tendon-derived stem cells (TSCs) and promotes osteogenic differentiation. Then, combining the RNA-seq results of the aging tendon, we detected the abnormally activated autocrine CXCL13-CXCR5 axis in TSCs cultured in a high fat, high glucose (HFHG) environment and also in the aged tendon. Genetic inhibition of CXCL13 successfully alleviated HO formation in DM mice, providing a potential therapeutic target for suppressing HO formation in DM patients after trauma or surgery.
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Affiliation(s)
- Yuyu Chen
- Department of Plastic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jinna Wu
- Department of Breast Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Chipiu Wong
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, 510120, China
| | - Wenjie Gao
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, 510120, China.
| | - Xiangdong Qi
- Department of Plastic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Hang Zhou
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, 510120, China.
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2
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Malinauskas T, Moore G, Rudolf AF, Eggington H, Belnoue-Davis HL, El Omari K, Griffiths SC, Woolley RE, Duman R, Wagner A, Leedham SJ, Baldock C, Ashe HL, Siebold C. Molecular mechanism of BMP signal control by Twisted gastrulation. Nat Commun 2024; 15:4976. [PMID: 38862520 PMCID: PMC11167000 DOI: 10.1038/s41467-024-49065-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 05/22/2024] [Indexed: 06/13/2024] Open
Abstract
Twisted gastrulation (TWSG1) is an evolutionarily conserved secreted glycoprotein which controls signaling by Bone Morphogenetic Proteins (BMPs). TWSG1 binds BMPs and their antagonist Chordin to control BMP signaling during embryonic development, kidney regeneration and cancer. We report crystal structures of TWSG1 alone and in complex with a BMP ligand, Growth Differentiation Factor 5. TWSG1 is composed of two distinct, disulfide-rich domains. The TWSG1 N-terminal domain occupies the BMP type 1 receptor binding site on BMPs, whereas the C-terminal domain binds to a Chordin family member. We show that TWSG1 inhibits BMP function in cellular signaling assays and mouse colon organoids. This inhibitory function is abolished in a TWSG1 mutant that cannot bind BMPs. The same mutation in the Drosophila TWSG1 ortholog Tsg fails to mediate BMP gradient formation required for dorsal-ventral axis patterning of the early embryo. Our studies reveal the evolutionarily conserved mechanism of BMP signaling inhibition by TWSG1.
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Affiliation(s)
- Tomas Malinauskas
- Division of Structural Biology, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK.
| | - Gareth Moore
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK
| | - Amalie F Rudolf
- Division of Structural Biology, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK
| | - Holly Eggington
- Intestinal Stem Cell Biology Lab, Wellcome Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford National Institute for Health Research Biomedical Research Centre, Oxford, UK
| | - Hayley L Belnoue-Davis
- Intestinal Stem Cell Biology Lab, Wellcome Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford National Institute for Health Research Biomedical Research Centre, Oxford, UK
| | - Kamel El Omari
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Samuel C Griffiths
- Division of Structural Biology, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK
- Evotec (UK) Ltd., 90 Innovation Drive, Milton Park, Abingdon, OX14 4RZ, UK
| | - Rachel E Woolley
- Division of Structural Biology, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK
- Etcembly Ltd., Atlas Building, Harwell Campus, OX11 0QX, UK
| | - Ramona Duman
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Armin Wagner
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Simon J Leedham
- Intestinal Stem Cell Biology Lab, Wellcome Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford National Institute for Health Research Biomedical Research Centre, Oxford, UK
| | - Clair Baldock
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK
| | - Hilary L Ashe
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK.
| | - Christian Siebold
- Division of Structural Biology, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK.
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3
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Zhang S, Hao W, Chen D, Chen S, Li Z, Zhong F, Wang H, Wang J, Zheng Z, Zhan Z, Dai G, Liu H. Intermittent administration of PTH for the treatment of inflammatory bone loss does not enhance entheseal pathological new bone formation. Biochem Biophys Res Commun 2024; 711:149888. [PMID: 38603833 DOI: 10.1016/j.bbrc.2024.149888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/21/2024] [Accepted: 04/03/2024] [Indexed: 04/13/2024]
Abstract
OBJECTIVE To investigate the effect of intermittent parathyroid hormone (iPTH) administration on pathological new bone formation during treatment of ankylosing spondylitis-related osteoporosis. METHODS Animal models with pathological bone formation caused by hypothetical AS pathogenesis received treatment with iPTH. We determined the effects of iPTH on bone loss and the formation of pathological new bone with micro-computed tomography (micro-CT) and histological examination. In addition, the tamoxifen-inducible conditional knockout mice (CAGGCre-ERTM; PTHflox/flox, PTH-/-) was established to delete PTH and investigate the effect of endogenous PTH on pathological new bone formation. RESULTS iPTH treatment significantly improved trabecular bone mass in the modified collagen-induced arthritis (m-CIA) model and unbalanced mechanical loading models. Meanwhile, iPTH treatment did not enhance pathological new bone formation in all types of animal models. Endogenous PTH deficiency had no effects on pathological new bone formation in unbalanced mechanical loading models. CONCLUSION Experimental animal models of AS treated with iPTH show improvement in trabecular bone density, but not entheseal pathological bone formation,indicating it may be a potential treatment for inflammatory bone loss does in AS.
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Affiliation(s)
- Shuai Zhang
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China
| | - Wenjun Hao
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China
| | - Dongying Chen
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Siwen Chen
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China
| | - Zihao Li
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China
| | - Fangling Zhong
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China
| | - Haitao Wang
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China
| | - Jianru Wang
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China
| | - Zhaomin Zheng
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China
| | - Zhongping Zhan
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Guo Dai
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China.
| | - Hui Liu
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; Guangdong Province Key Laboratory of Orthopaedics and Traumatology, Guangzhou, 510080, Guangdong, China.
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4
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Wein MN, Yang Y. Actionable disease insights from bedside-to-bench investigation in fibrodysplasia ossificans progressiva. J Bone Miner Res 2024; 39:375-376. [PMID: 38644656 DOI: 10.1093/jbmr/zjae044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 02/26/2024] [Accepted: 03/05/2024] [Indexed: 04/23/2024]
Affiliation(s)
- Marc N Wein
- Endocrine Unit, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02114, United States
| | - Yingzi Yang
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA 02115, United States
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5
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Sun L, Jin Y, Nishio M, Watanabe M, Kamakura T, Nagata S, Fukuda M, Maekawa H, Kawai S, Yamamoto T, Toguchida J. Oxidative phosphorylation is a pivotal therapeutic target of fibrodysplasia ossificans progressiva. Life Sci Alliance 2024; 7:e202302219. [PMID: 38365425 PMCID: PMC10875110 DOI: 10.26508/lsa.202302219] [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: 06/15/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/18/2024] Open
Abstract
Heterotopic ossification (HO) is a non-physiological bone formation where soft tissue progenitor cells differentiate into chondrogenic cells. In fibrodysplasia ossificans progressiva (FOP), a rare genetic disease characterized by progressive and systemic HO, the Activin A/mutated ACVR1/mTORC1 cascade induces HO in progenitors in muscle tissues. The relevant biological processes aberrantly regulated by activated mTORC1 remain unclear, however. RNA-sequencing analyses revealed the enrichment of genes involved in oxidative phosphorylation (OXPHOS) during Activin A-induced chondrogenesis of mesenchymal stem cells derived from FOP patient-specific induced pluripotent stem cells. Functional analyses showed a metabolic transition from glycolysis to OXPHOS during chondrogenesis, along with increased mitochondrial biogenesis. mTORC1 inhibition by rapamycin suppressed OXPHOS, whereas OXPHOS inhibitor IACS-010759 inhibited cartilage matrix formation in vitro, indicating that OXPHOS is principally involved in mTORC1-induced chondrogenesis. Furthermore, IACS-010759 inhibited the muscle injury-induced enrichment of fibro/adipogenic progenitor genes and HO in transgenic mice carrying the mutated human ACVR1. These data indicated that OXPHOS is a critical downstream mediator of mTORC1 signaling in chondrogenesis and therefore is a potential FOP therapeutic target.
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Affiliation(s)
- Liping Sun
- Department of Regeneration Sciences and Engineering, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Yonghui Jin
- Department of Regeneration Sciences and Engineering, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Megumi Nishio
- Department of Fundamental Cell Technology, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Makoto Watanabe
- Life Science Research Center, Technology Research Laboratory, Shimadzu Corporation, Kyoto, Japan
| | - Takeshi Kamakura
- Department of Regeneration Sciences and Engineering, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Sanae Nagata
- Department of Fundamental Cell Technology, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Masayuki Fukuda
- Department of Regeneration Sciences and Engineering, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Hirotsugu Maekawa
- Department of Fundamental Cell Technology, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Shunsuke Kawai
- Department of Fundamental Cell Technology, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Takuya Yamamoto
- Department of Life Science Frontiers, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
- Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan
- Medical-risk Avoidance Based on iPS Cells Team, RIKEN Center for Advanced Intelligence Project, Kyoto, Japan
| | - Junya Toguchida
- Department of Regeneration Sciences and Engineering, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
- Department of Fundamental Cell Technology, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
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6
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Kaliya-Perumal AK, Celik C, Carney TJ, Harris MP, Ingham PW. Genetic regulation of injury-induced heterotopic ossification in adult zebrafish. Dis Model Mech 2024; 17:dmm050724. [PMID: 38736327 DOI: 10.1242/dmm.050724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/05/2024] [Indexed: 05/14/2024] Open
Abstract
Heterotopic ossification is the inappropriate formation of bone in soft tissues of the body. It can manifest spontaneously in rare genetic conditions or as a response to injury, known as acquired heterotopic ossification. There are several experimental models for studying acquired heterotopic ossification from different sources of damage. However, their tenuous mechanistic relevance to the human condition, invasive and laborious nature and/or lack of amenability to chemical and genetic screens, limit their utility. To address these limitations, we developed a simple zebrafish injury model that manifests heterotopic ossification with high penetrance in response to clinically emulating injuries, as observed in human myositis ossificans traumatica. Using this model, we defined the transcriptional response to trauma, identifying differentially regulated genes. Mutant analyses revealed that an increase in the activity of the potassium channel Kcnk5b potentiates injury response, whereas loss of function of the interleukin 11 receptor paralogue (Il11ra) resulted in a drastically reduced ossification response. Based on these findings, we postulate that enhanced ionic signalling, specifically through Kcnk5b, regulates the intensity of the skeletogenic injury response, which, in part, requires immune response regulated by Il11ra.
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Affiliation(s)
- Arun-Kumar Kaliya-Perumal
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive 636921, Singapore
| | - Cenk Celik
- Department of Genetics, Evolution and Environment, Genetics Institute, University College London, London WC1E 6BT, UK
| | - Tom J Carney
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive 636921, Singapore
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos 138673, Singapore
| | - Matthew P Harris
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
- Department of Orthopedic Research, Boston Children's Hospital, Boston, MA 02115, USA
| | - Philip W Ingham
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive 636921, Singapore
- Department of Life Sciences, University of Bath, Bath BA2 7AY, UK
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7
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Mejias Rivera L, Shore EM, Mourkioti F. Cellular and Molecular Mechanisms of Heterotopic Ossification in Fibrodysplasia Ossificans Progressiva. Biomedicines 2024; 12:779. [PMID: 38672135 PMCID: PMC11048698 DOI: 10.3390/biomedicines12040779] [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: 03/12/2024] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP) is a debilitating genetic disorder characterized by recurrent episodes of heterotopic ossification (HO) formation in muscles, tendons, and ligaments. FOP is caused by a missense mutation in the ACVR1 gene (activin A receptor type I), an important signaling receptor involved in endochondral ossification. The ACVR1R206H mutation induces increased downstream canonical SMAD-signaling and drives tissue-resident progenitor cells with osteogenic potential to participate in endochondral HO formation. In this article, we review aberrant ACVR1R206H signaling and the cells that give rise to HO in FOP. FOP mouse models and lineage tracing analyses have been used to provide strong evidence for tissue-resident mesenchymal cells as cellular contributors to HO. We assess how the underlying mutation in FOP disrupts muscle-specific dynamics during homeostasis and repair, with a focus on muscle-resident mesenchymal cells known as fibro-adipogenic progenitors (FAPs). Accumulating research points to FAPs as a prominent HO progenitor population, with ACVR1R206H FAPs not only aberrantly differentiating into chondro-osteogenic lineages but creating a permissive environment for bone formation at the expense of muscle regeneration. We will further discuss the emerging role of ACVR1R206H FAPs in muscle regeneration and therapeutic targeting of these cells to reduce HO formation in FOP.
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Affiliation(s)
- Loreilys Mejias Rivera
- Cell and Molecular Biology, Genetics and Epigenetics Graduate Program, University of Pennsylvania, Philadelphia, PA 19104, USA;
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 3450 Hamilton Walk, Philadelphia, PA 19104, USA
- Center for Research in FOP and Related Disorders, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Eileen M. Shore
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 3450 Hamilton Walk, Philadelphia, PA 19104, USA
- Center for Research in FOP and Related Disorders, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Foteini Mourkioti
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 3450 Hamilton Walk, Philadelphia, PA 19104, USA
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Musculoskeletal Program, Penn Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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8
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Cong Q, Yang Y. Hedgehog Signaling Controls Chondrogenesis and Ectopic Bone Formation via the Yap-Ihh Axis. Biomolecules 2024; 14:347. [PMID: 38540766 PMCID: PMC10968511 DOI: 10.3390/biom14030347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/01/2024] [Accepted: 03/12/2024] [Indexed: 07/16/2024] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP) is a rare congenital disorder characterized by abnormal bone formation due to ACVR1 gene mutations. The identification of the molecular mechanisms underlying the ectopic bone formation and expansion in FOP is critical for the effective treatment or prevention of HO. Here we find that Hh signaling activation is required for the aberrant ectopic bone formation in FOP. We show that the expression of Indian hedgehog (Ihh), a Hh ligand, as well as downstream Hh signaling, was increased in ectopic bone lesions in Acvr1R206H; ScxCre mice. Pharmacological treatment with an Ihh-neutralizing monoclonal antibody dramatically reduced chondrogenesis and ectopic bone formation. Moreover, we find that the activation of Yap in the FOP mouse model and the genetic deletion of Yap halted ectopic bone formation and decreased Ihh expression. Our mechanistic studies showed that Yap and Smad1 directly bind to the Ihh promoter and coordinate to induce chondrogenesis by promoting Ihh expression. Therefore, the Yap activation in FOP lesions promoted ectopic bone formation and expansion in both cell-autonomous and non-cell-autonomous manners. These results uncovered the crucial role of the Yap-Ihh axis in FOP pathogenesis, suggesting the inhibition of Ihh or Yap as a potential therapeutic strategy to prevent and reduce HO.
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Affiliation(s)
- Qian Cong
- Department of Developmental Biology, Harvard School of Dental Medicine, Harvard Stem Cell Institute, Boston, MA 02115, USA;
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9
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Burdick LN, DelVichio AH, Hanson LR, Griffith BB, Bouchard KR, Hunter JW, Goldhamer DJ. Sex as a Critical Variable in Basic and Pre-Clinical Studies of Fibrodysplasia Ossificans Progressiva. Biomolecules 2024; 14:177. [PMID: 38397414 PMCID: PMC10886767 DOI: 10.3390/biom14020177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Heterotopic ossification (HO) is most dramatically manifested in the rare and severely debilitating disease, fibrodysplasia ossificans progressiva (FOP), in which heterotopic bone progressively accumulates in skeletal muscles and associated soft tissues. The great majority of FOP cases are caused by a single amino acid substitution in the type 1 bone morphogenetic protein (BMP) receptor ACVR1, a mutation that imparts responsiveness to activin A. Although it is well-established that biological sex is a critical variable in a range of physiological and disease processes, the impact of sex on HO in animal models of FOP has not been explored. We show that female FOP mice exhibit both significantly greater and more variable HO responses after muscle injury. Additionally, the incidence of spontaneous HO was significantly greater in female mice. This sex dimorphism is not dependent on gonadally derived sex hormones, and reciprocal cell transplantations indicate that apparent differences in osteogenic activity are intrinsic to the sex of the transplanted cells. By circumventing the absolute requirement for activin A using an agonist of mutant ACVR1, we show that the female-specific response to muscle injury or BMP2 implantation is dependent on activin A. These data identify sex as a critical variable in basic and pre-clinical studies of FOP.
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Affiliation(s)
- Lorraine N. Burdick
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
| | - Amanda H. DelVichio
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
| | - L. Russell Hanson
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
| | - Brenden B. Griffith
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
| | - Keith R. Bouchard
- Alexion Pharmaceuticals Inc., 100 College Street, New Haven, CT 06510, USA; (K.R.B.); (J.W.H.)
| | - Jeffrey W. Hunter
- Alexion Pharmaceuticals Inc., 100 College Street, New Haven, CT 06510, USA; (K.R.B.); (J.W.H.)
| | - David J. Goldhamer
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
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10
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Wang H, Kaplan FS, Pignolo RJ. The HIF-1α and mTOR Pathways Amplify Heterotopic Ossification. Biomolecules 2024; 14:147. [PMID: 38397384 PMCID: PMC10887042 DOI: 10.3390/biom14020147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP; MIM# 135100) is an ultra-rare congenital disorder caused by gain-of-function point mutations in the Activin receptor A type I (ACVR1, also known as ALK2) gene. FOP is characterized by episodic heterotopic ossification (HO) in skeletal muscles, tendons, ligaments, or other soft tissues that progressively causes irreversible loss of mobility. FOP mutations cause mild ligand-independent constitutive activation as well as ligand-dependent bone morphogenetic protein (BMP) pathway hypersensitivity of mutant ACVR1. BMP signaling is also a key pathway for mediating acquired HO. However, HO is a highly complex biological process involving multiple interacting signaling pathways. Among them, the hypoxia-inducible factor (HIF) and mechanistic target of rapamycin (mTOR) pathways are intimately involved in both genetic and acquired HO formation. HIF-1α inhibition or mTOR inhibition reduces HO formation in mouse models of FOP or acquired HO in part by de-amplifying the BMP pathway signaling. Here, we review the recent progress on the mechanisms of the HIF-1α and mTOR pathways in the amplification of HO lesions and discuss the future directions and strategies to translate the targeting of HIF-1α and the mTOR pathways into clinical interventions for FOP and other forms of HO.
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Affiliation(s)
- Haitao Wang
- Department of Medicine, Geriatric Medicine & Gerontology, Mayo Clinic, Rochester, MN 55905, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - Frederick S. Kaplan
- Department of Orthopaedic Surgery, The Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Medicine, The Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA 19104, USA
- The Center for Research in FOP and Related Disorders, The Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Robert J. Pignolo
- Department of Medicine, Geriatric Medicine & Gerontology, Mayo Clinic, Rochester, MN 55905, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
- Department of Medicine, Divisions of Endocrinology, Hospital Internal Medicine, Rochester, MN 55905, USA
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Srinivasan D, Arostegui M, Goebel EJ, Hart KN, Aykul S, Lees-Shepard JB, Idone V, Hatsell SJ, Economides AN. How Activin A Became a Therapeutic Target in Fibrodysplasia Ossificans Progressiva. Biomolecules 2024; 14:101. [PMID: 38254701 PMCID: PMC10813747 DOI: 10.3390/biom14010101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disorder characterized by episodic yet cumulative heterotopic ossification (HO) of skeletal muscles, tendons, ligaments, and fascia. FOP arises from missense mutations in Activin Receptor type I (ACVR1), a type I bone morphogenetic protein (BMP) receptor. Although initial findings implicated constitutive activity of FOP-variant ACVR1 (ACVR1FOP) and/or hyperactivation by BMPs, it was later shown that HO in FOP requires activation of ACVR1FOP by Activin A. Inhibition of Activin A completely prevents HO in FOP mice, indicating that Activin A is an obligate driver of HO in FOP, and excluding a key role for BMPs in this process. This discovery led to the clinical development of garetosmab, an investigational antibody that blocks Activin A. In a phase 2 trial, garetosmab inhibited new heterotopic bone lesion formation in FOP patients. In contrast, antibodies to ACVR1 activate ACVR1FOP and promote HO in FOP mice. Beyond their potential clinical relevance, these findings have enhanced our understanding of FOP's pathophysiology, leading to the identification of fibroadipogenic progenitors as the cells that form HO, and the discovery of non-signaling complexes between Activin A and wild type ACVR1 and their role in tempering HO, and are also starting to inform biological processes beyond FOP.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Aris N. Economides
- Regeneron Pharmaceuticals, Inc., Tarrytown, NY 10591, USA; (D.S.); (M.A.); (E.J.G.); (K.N.H.); (S.A.); (J.B.L.-S.); (V.I.); (S.J.H.)
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12
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Hu H, Luo S, Lai P, Lai M, Mao L, Zhang S, Jiang Y, Wen J, Zhou W, Liu X, Wang L, Huang M, Hu Y, Zhao X, Xia L, Zhou W, Jiang Y, Zou Z, Liu A, Guo B, Bai X. ANGPTL4 binds to the leptin receptor to regulate ectopic bone formation. Proc Natl Acad Sci U S A 2024; 121:e2310685120. [PMID: 38147550 PMCID: PMC10769826 DOI: 10.1073/pnas.2310685120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 11/17/2023] [Indexed: 12/28/2023] Open
Abstract
Leptin protein was thought to be unique to leptin receptor (LepR), but the phenotypes of mice with mutation in LepR [db/db (diabetes)] and leptin [ob/ob (obese)] are not identical, and the cause remains unclear. Here, we show that db/db, but not ob/ob, mice had defect in tenotomy-induced heterotopic ossification (HO), implicating alternative ligand(s) for LepR might be involved. Ligand screening revealed that ANGPTL4 (angiopoietin-like protein 4), a stress and fasting-induced factor, was elicited from brown adipose tissue after tenotomy, bound to LepR on PRRX1+ mesenchymal cells at the HO site, thus promotes chondrogenesis and HO development. Disruption of LepR in PRRX1+ cells, or lineage ablation of LepR+ cells, or deletion of ANGPTL4 impeded chondrogenesis and HO in mice. Together, these findings identify ANGPTL4 as a ligand for LepR to regulate the formation of acquired HO.
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Affiliation(s)
- Hongling Hu
- Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong510630, China
- Department of Trauma and Joint Surgery, Shunde Hospital, Southern Medical University, Foshan, Guangdong528300, China
| | - Sheng Luo
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Pinglin Lai
- Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong510630, China
| | - Mingqiang Lai
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong510900, China
| | - Linlin Mao
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Sheng Zhang
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Yuanjun Jiang
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Jiaxin Wen
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Wu Zhou
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Xiaolin Liu
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Liang Wang
- Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong510630, China
| | - Minjun Huang
- Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong510630, China
| | - Yanjun Hu
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Xiaoyang Zhao
- Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Laixin Xia
- Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Weijie Zhou
- Department of Pathology, Nanfang Hospital, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Yu Jiang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA15261
| | - Zhipeng Zou
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Anling Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
| | - Bin Guo
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
- Department of Orthopaedics, The Tenth Affiliated Hospital, Southern Medical University, Dongguan, Guangdong523018, China
| | - Xiaochun Bai
- Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong510630, China
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong510515, China
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13
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Xuri Chen, Yang Y, Gu Y, Yi J, Yao W, Sha Z, Wu H, Zhou Y, Wu Z, Bao F, Wang J, Wang Y, Xie Y, Gao C, Heng BC, Liu H, Yin Z, Chen X, Zhou J, Ouyang H. Inhibition of PI3K/AKT signaling pathway prevents blood-induced heterotopic ossification of the injured tendon. J Orthop Translat 2024; 44:139-154. [PMID: 38328343 PMCID: PMC10847949 DOI: 10.1016/j.jot.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 02/09/2024] Open
Abstract
Objective It is a common clinical phenomenon that blood infiltrates into the injured tendon caused by sports injuries, accidental injuries, and surgery. However, the role of blood infiltration into the injured tendon has not been investigated. Methods A blood-induced rat model was established and the impact of blood infiltration on inflammation and HO of the injured tendon was assessed. Cell adhesion, viability, apoptosis, and gene expression were measured to evaluate the effect of blood treatment on tendon stem/progenitor cells (TSPCs). Then RNA-seq was used to assess transcriptomic changes in tendons in a blood infiltration environment. At last, the small molecule drug PI3K inhibitor LY294002 was used for in vivo and in vitro HO treatment. Results Blood caused acute inflammation in the short term and more severe HO in the long term. Then we found that blood treatment increased cell apoptosis and decreased cell adhesion and tenonic gene expression of TSPCs. Furthermore, blood treatment promoted osteochondrogenic differentiation of TSPCs. Next, we used RNA-seq to find that the PI3K/AKT signaling pathway was activated in blood-treated tendon tissues. By inhibiting PI3K with a small molecule drug LY294002, the expression of osteochondrogenic genes was markedly downregulated while the expression of tenonic genes was significantly upregulated. At last, we also found that LY294002 treatment significantly reduced the tendon HO in the rat blood-induced model. Conclusion Our findings indicate that the upregulated PI3K/AKT signaling pathway is implicated in the aggravation of tendon HO. Therefore, inhibitors targeting the PI3K/AKT pathway would be a promising approach to treat blood-induced tendon HO.
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Affiliation(s)
- Xuri Chen
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Yuwei Yang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Yuqing Gu
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Junzhi Yi
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Wenyu Yao
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Zhuomin Sha
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Hongwei Wu
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Yunting Zhou
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Zhonglin Wu
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Fangyuan Bao
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Jiasheng Wang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Ying Wang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Yuanhao Xie
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
| | - Chenlu Gao
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Boon Chin Heng
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Hua Liu
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
| | - Zi Yin
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
| | - Xiao Chen
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
| | - Jing Zhou
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
| | - Hongwei Ouyang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 314400, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
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Mundy C, Yao L, Shaughnessy KA, Saunders C, Shore EM, Koyama E, Pacifici M. Palovarotene Action Against Heterotopic Ossification Includes a Reduction of Local Participating Activin A-Expressing Cell Populations. JBMR Plus 2023; 7:e10821. [PMID: 38130748 PMCID: PMC10731142 DOI: 10.1002/jbm4.10821] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 09/09/2023] [Indexed: 12/23/2023] Open
Abstract
Heterotopic ossification (HO) consists of extraskeletal bone formation. One form of HO is acquired and instigated by traumas or surgery, and another form is genetic and characterizes fibrodysplasia ossificans progressiva (FOP). Recently, we and others showed that activin A promotes both acquired and genetic HO, and in previous studies we found that the retinoid agonist palovarotene inhibits both HO forms in mice. Here, we asked whether palovarotene's action against HO may include an interference with endogenous activin A expression and/or function. Using a standard mouse model of acquired HO, we found that activin A and its encoding RNA (Inhba) were prominent in chondrogenic cells within developing HO masses in untreated mice. Single-cell RNAseq (scRNAseq) assays verified that Inhba expression characterized chondroprogenitors and chondrocytes in untreated HO, in addition to its expected expression in inflammatory cells and macrophages. Palovarotene administration (4 mg/kg/d/gavage) caused a sharp inhibition of both HO and amounts of activin A and Inhba transcripts. Bioinformatic analyses of scRNAseq data sets indicated that the drug had reduced interactions and cross-talk among local cell populations. To determine if palovarotene inhibited Inhba expression directly, we assayed primary chondrocyte cultures. Drug treatment inhibited their cartilaginous phenotype but not Inhba expression. Our data reveal that palovarotene markedly reduces the number of local Inhba-expressing HO-forming cell populations. The data broaden the spectrum of HO culprits against which palovarotene acts, accounting for its therapeutic effectiveness. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Christina Mundy
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopaedic SurgeryThe Children's Hospital of PhiladelphiaPhiladelphiaPAUSA
| | - Lutian Yao
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopaedic SurgeryThe Children's Hospital of PhiladelphiaPhiladelphiaPAUSA
- Department of OrthopaedicsThe First Hospital of China Medical UniversityShenyangChina
| | - Kelly A. Shaughnessy
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopaedic SurgeryThe Children's Hospital of PhiladelphiaPhiladelphiaPAUSA
| | - Cheri Saunders
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopaedic SurgeryThe Children's Hospital of PhiladelphiaPhiladelphiaPAUSA
| | - Eileen M. Shore
- Departments of Orthopaedic Surgery and Genetics, Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Eiki Koyama
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopaedic SurgeryThe Children's Hospital of PhiladelphiaPhiladelphiaPAUSA
| | - Maurizio Pacifici
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopaedic SurgeryThe Children's Hospital of PhiladelphiaPhiladelphiaPAUSA
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Wang Z, Sun C, Yu Y, Zhang D, Qi B, Li Z, Yi X, Yu A. NIR-triggered photodynamic therapy of traumatic heterotopic ossification with a type II collagen-targeted photosensitizer. Mater Today Bio 2023; 23:100822. [PMID: 37810751 PMCID: PMC10550814 DOI: 10.1016/j.mtbio.2023.100822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/24/2023] [Accepted: 09/25/2023] [Indexed: 10/10/2023] Open
Abstract
Traumatic heterotopic ossification (HO) represents an intractable sequela following trauma with no currently effective prophylaxis or treatment. Photodynamic therapy (PDT) is a non-invasive treatment for various proliferative diseases. However, the specific effects of PDT on HO development remain unclear. In this study, the therapeutic potential of a near-infrared (NIR) probe-WL-808, composed of type II collagen-binding peptide (WYRGRL) and a PDT photosensitizer (IR-808), was evaluated for the innovative HO-targeted PDT approach. In vitro studies indicated that WL-808 could induce chondrocyte apoptosis and inhibit cell viability through ROS generation under NIR excitation. In vivo, the efficacy of WL-808-mediated PDT was tested on the tenotomy HO model mice. WL-808 specifically targeted the type II collagen cartilaginous template of HO, promoting cell apoptosis and enhancing extracellular matrix (ECM) degradation under 808 nm NIR excitation, which inhibited the final ectopic bone formation. Moreover, no obvious toxicity or side effects were detected after treatment with WL-808. Taken together, WL-808-mediated PDT significantly diminished ectopic cartilage and subsequent bone formation, providing a new perspective for HO prophylaxis and treatment.
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Affiliation(s)
| | | | - Yifeng Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Dong Zhang
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Baiwen Qi
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Zonghuan Li
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xinzeyu Yi
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Aixi Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
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Tuo Y, Hu L, Gu W, Yuan X, Wu J, Ma D, Luo D, Zhang X, Li X, Yang S, Yuan H. Identification of Bone Morphometric Protein-Related Hub Genes and Construction of a Transcriptional Regulatory Network in Patients With Ossification of the Ligamentum Flavum. Spine (Phila Pa 1976) 2023; 48:E317-E328. [PMID: 37384872 PMCID: PMC10445621 DOI: 10.1097/brs.0000000000004763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/06/2023] [Indexed: 07/01/2023]
Abstract
STUDY DESIGN Basic science laboratory study. OBJECTIVE To identify hub genes related to bone morphogenetic proteins (BMPs) in the ossification of the ligamentum flavum (OLF) and analyze their functional characteristics. SUMMARY OF BACKGROUND DATA The exact etiology and pathologic mechanism of OLF remain unclear. BMPs are pleiotropic osteoinductive proteins that may play a critical role in this condition. MATERIALS AND METHODS The GSE106253 and GSE106256 data sets were downloaded from the Gene Expression Omnibus database. The messenger RNA (mRNA) and long noncoding RNA expression profiles were obtained from GSE106253. The microRNA expression profiles were obtained from GSE106256. Differentially expressed genes were identified between OLF and non-OLF groups and then intersected with BMP-related genes to obtain differentially expressed BMP-related genes. The least absolute shrinkage selection operator and support vector machine recursive feature elimination were used to screen hub genes. Furthermore, a competing endogenous RNA network was constructed to explain the expression regulation of the hub genes in OLF. Finally, the protein and mRNA expression levels of the hub genes were verified using Western blot and real-time polymerase chain reaction, respectively. RESULTS We identified 671 Differentially expressed genes and 32 differentially expressed BMP-related genes. Hub genes ADIPOQ , SCD , SCX , RPS18 , WDR82 , and SPON1 , identified through the least absolute shrinkage selection operator and support vector machine recursive feature elimination analyses, showed high diagnostic values for OLF. Furthermore, the competing endogenous RNA network revealed the regulatory mechanisms of the hub genes. Real-time polymerase chain reaction showed that the mRNA expression of the hub genes was significantly downregulated in the OLF group compared with the non-OLF group. Western blot showed that the protein levels of ADIPOQ, SCD, WDR82 , and SPON1 were significantly downregulated, whereas those of SCX and RPS18 were significantly upregulated in the OLF group compared with the non-OLF group. CONCLUSION This study is the first to identify BMP-related genes in OLF pathogenesis through bioinformatics analysis. ADIPOQ , SCD , SCX , RPS18 , WDR82 , and SPON1 were identified as hub genes for OLF. The identified genes may serve as potential therapeutic targets for treating patients with OLF.
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Affiliation(s)
- Yifan Tuo
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Lihong Hu
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
| | - Wenbo Gu
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Xiaoya Yuan
- St. Anne’s—Belfield School, Charlottesville, VA
| | - Jide Wu
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Da Ma
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Di Luo
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Xiao Zhang
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Xusheng Li
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
| | - Shengsen Yang
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
| | - Haifeng Yuan
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
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17
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Sánchez-Duffhues G, Hiepen C. Human iPSCs as Model Systems for BMP-Related Rare Diseases. Cells 2023; 12:2200. [PMID: 37681932 PMCID: PMC10487005 DOI: 10.3390/cells12172200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/17/2023] [Accepted: 08/23/2023] [Indexed: 09/09/2023] Open
Abstract
Disturbances in bone morphogenetic protein (BMP) signalling contribute to onset and development of a number of rare genetic diseases, including Fibrodysplasia ossificans progressiva (FOP), Pulmonary arterial hypertension (PAH), and Hereditary haemorrhagic telangiectasia (HHT). After decades of animal research to build a solid foundation in understanding the underlying molecular mechanisms, the progressive implementation of iPSC-based patient-derived models will improve drug development by addressing drug efficacy, specificity, and toxicity in a complex humanized environment. We will review the current state of literature on iPSC-derived model systems in this field, with special emphasis on the access to patient source material and the complications that may come with it. Given the essential role of BMPs during embryonic development and stem cell differentiation, gain- or loss-of-function mutations in the BMP signalling pathway may compromise iPSC generation, maintenance, and differentiation procedures. This review highlights the need for careful optimization of the protocols used. Finally, we will discuss recent developments towards complex in vitro culture models aiming to resemble specific tissue microenvironments with multi-faceted cellular inputs, such as cell mechanics and ECM together with organoids, organ-on-chip, and microfluidic technologies.
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Affiliation(s)
- Gonzalo Sánchez-Duffhues
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC), ISPA-HUCA, Avda. de Roma, s/n, 33011 Oviedo, Spain
- Department of Cell and Chemical Biology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Christian Hiepen
- Department of Engineering and Natural Sciences, Westphalian University of Applied Sciences, August-Schmidt-Ring 10, 45665 Recklinghausen, Germany
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18
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Wang Z, Yi X, Jian C, Qi B, Liu Q, Li Z, Yu A. Sustained notch signaling inhibition with a gamma-secretase inhibitor prevents traumatic heterotopic ossification. J Orthop Translat 2023; 42:31-42. [PMID: 37575153 PMCID: PMC10415638 DOI: 10.1016/j.jot.2023.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/23/2023] [Accepted: 06/30/2023] [Indexed: 08/15/2023] Open
Abstract
Background Traumatic heterotopic ossification (THO) is a devastating sequela following traumatic injuries and orthopedic surgeries. To date, the exact molecular mechanism of THO formation is still unclear, which hinders the development of effective treatments. The process of THO formation is believed to recapitulate a series of spatiotemporal cellular and signaling events that occur during skeletal development. The Notch signaling pathway is a critical genetic regulator in embryological bone development and fracture healing. However, few data are available concerning whether Notch signaling regulates THO development and maturation. Methods We firstly detected the expressions of Notch target genes in both mouse and human THO samples with quantitative RT-PCR and immunohistochemistry (IHC). Then, tissue-resident mesenchymal progenitor cells (TMPCs) were isolated, and the abilities of the proliferation and osteogenic and chondrogenic differentiation of TMPCs were examined under the intervention of the gamma-secretase inhibitor-DAPT at different time points. Finally, DAPT was also administrated in THO mice by burn and Achilles tenotomy injury, and ectopic cartilage and bone formation were monitored by histology and micro-CT. Results Several Notch target genes were upregulated in both mouse and human THO tissues. Sustained Notch signaling inhibition by DAPT reduced proliferation, osteogenic and chondrogenic differentiation of TMPCs in a time-dependent manner. Moreover, DAPT administration within 3 weeks could inhibit ectopic cartilage and bone formation in a mouse THO model without affecting the total body bone mass. Conclusions The Notch signaling serves as an important therapeutic target during THO formation. And sustained gamma-secretase inhibition by DAPT has great potential in repressing chondrogenic and osteogenic differentiation of TMPCs, as well as inhibited ectopic cartilage and bone formation in vivo. The translational potential of this article Sustained Notch inhibition via systemic DAPT (or other similar gamma-secretase inhibitors) administration has promising clinical utility for inhibiting THO formation, providing new insight into THO prophylaxis and treatment.
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Affiliation(s)
- Zheng Wang
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Xinzeyu Yi
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Chao Jian
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Baiwen Qi
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Qiaoyun Liu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Zonghuan Li
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Aixi Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
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19
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Yea JH, Gomez-Salazar M, Onggo S, Li Z, Thottappillil N, Cherief M, Negri S, Xing X, Qin Q, Tower RJ, Fan CM, Levi B, James AW. Tppp3 + synovial/tendon sheath progenitor cells contribute to heterotopic bone after trauma. Bone Res 2023; 11:39. [PMID: 37479686 PMCID: PMC10361999 DOI: 10.1038/s41413-023-00272-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 05/18/2023] [Accepted: 05/28/2023] [Indexed: 07/23/2023] Open
Abstract
Heterotopic ossification (HO) is a pathological process resulting in aberrant bone formation and often involves synovial lined tissues. During this process, mesenchymal progenitor cells undergo endochondral ossification. Nonetheless, the specific cell phenotypes and mechanisms driving this process are not well understood, in part due to the high degree of heterogeneity of the progenitor cells involved. Here, using a combination of lineage tracing and single-cell RNA sequencing (scRNA-seq), we investigated the extent to which synovial/tendon sheath progenitor cells contribute to heterotopic bone formation. For this purpose, Tppp3 (tubulin polymerization-promoting protein family member 3)-inducible reporter mice were used in combination with either Scx (Scleraxis) or Pdgfra (platelet derived growth factor receptor alpha) reporter mice. Both tendon injury- and arthroplasty-induced mouse experimental HO models were utilized. ScRNA-seq of tendon-associated traumatic HO suggested that Tppp3 is an early progenitor cell marker for either tendon or osteochondral cells. Upon HO induction, Tppp3 reporter+ cells expanded in number and partially contributed to cartilage and bone formation in either tendon- or joint-associated HO. In double reporter animals, both Pdgfra+Tppp3+ and Pdgfra+Tppp3- progenitor cells gave rise to HO-associated cartilage. Finally, analysis of human samples showed a substantial population of TPPP3-expressing cells overlapping with osteogenic markers in areas of heterotopic bone. Overall, these data demonstrate that synovial/tendon sheath progenitor cells undergo aberrant osteochondral differentiation and contribute to HO after trauma.
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Affiliation(s)
- Ji-Hye Yea
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Mario Gomez-Salazar
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Sharon Onggo
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Zhao Li
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21205, USA
| | | | - Masnsen Cherief
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Stefano Negri
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21205, USA
- Orthopaedic and Trauma Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology of the University of Verona, Verona, Italy
| | - Xin Xing
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Qizhi Qin
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Robert Joel Tower
- Center for Organogenesis and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, USA
| | - Chen-Ming Fan
- Carnegie Institution for Science, Baltimore, MD, USA
| | - Benjamin Levi
- Center for Organogenesis and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, USA
| | - Aaron W James
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21205, USA.
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20
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Ethyl caffeate inhibits macrophage polarization via SIRT1/NF-κB to attenuate traumatic heterotopic ossification in mice. Biomed Pharmacother 2023; 161:114508. [PMID: 37002582 DOI: 10.1016/j.biopha.2023.114508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/16/2023] Open
Abstract
Heterotopic ossification (HO) denotes the presence of mature bone tissue in soft tissues or around joints. Inflammation is a key driver of traumatic HO, and macrophages play an important role in this process. Ethyl caffeate (ECF), a critical active compound found in Petunia, exerts significant anti-inflammatory effects. Herein, we established a mouse model of HO by transection of the Achilles tendon and back burn and found abundant macrophage infiltration in the early stage of HO, which decreased with time. In vitro and in vivo experiments indicated that ECF inhibited macrophage polarization, and mechanistic studies showed that it inhibited the SIRT1/NF-κB signalling pathway, thereby suppressing the release of downstream inflammatory cytokines. ECF reduced HO in mice, and its effect was comparable to indomethacin (INDO). In vitro studies revealed that ECF did not directly affect the mineralization of mesenchymal stem cells (MSCs) or osteogenic differentiation but inhibited these processes by reducing the level of inflammatory cytokines in the conditioned medium (CM). Thus, M1 macrophages may play a crucial role in the pathogenesis of HO, and ECF is a prospective candidate for the prevention of trauma-induced HO. DATA AVAILABILITY: Data will be made available on request.
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21
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Kotsaris G, Qazi TH, Bucher CH, Zahid H, Pöhle-Kronawitter S, Ugorets V, Jarassier W, Börno S, Timmermann B, Giesecke-Thiel C, Economides AN, Le Grand F, Vallecillo-García P, Knaus P, Geissler S, Stricker S. Odd skipped-related 1 controls the pro-regenerative response of fibro-adipogenic progenitors. NPJ Regen Med 2023; 8:19. [PMID: 37019910 PMCID: PMC10076435 DOI: 10.1038/s41536-023-00291-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 03/17/2023] [Indexed: 04/07/2023] Open
Abstract
Skeletal muscle regeneration requires the coordinated interplay of diverse tissue-resident- and infiltrating cells. Fibro-adipogenic progenitors (FAPs) are an interstitial cell population that provides a beneficial microenvironment for muscle stem cells (MuSCs) during muscle regeneration. Here we show that the transcription factor Osr1 is essential for FAPs to communicate with MuSCs and infiltrating macrophages, thus coordinating muscle regeneration. Conditional inactivation of Osr1 impaired muscle regeneration with reduced myofiber growth and formation of excessive fibrotic tissue with reduced stiffness. Osr1-deficient FAPs acquired a fibrogenic identity with altered matrix secretion and cytokine expression resulting in impaired MuSC viability, expansion and differentiation. Immune cell profiling suggested a novel role for Osr1-FAPs in macrophage polarization. In vitro analysis suggested that increased TGFβ signaling and altered matrix deposition by Osr1-deficient FAPs actively suppressed regenerative myogenesis. In conclusion, we show that Osr1 is central to FAP function orchestrating key regenerative events such as inflammation, matrix secretion and myogenesis.
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Affiliation(s)
- Georgios Kotsaris
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
- Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, 13353, Berlin, Germany
| | - Taimoor H Qazi
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Julius Wolff Institute, Augustenburger Platz 1, 13353, Berlin, Germany
- Department of Bioengineering, University of Pennsylvania, 19104, Philadelphia, USA
- Weldon School of Biomedical Engineering, Purdue University, 47907, West Lafayette, IN, USA
| | - Christian H Bucher
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Julius Wolff Institute, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Charitéplatz 1, 10117, Berlin, Germany
| | - Hafsa Zahid
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
- International Max Planck Research School for Biology and Computing IMPRS-BAC, Berlin, Germany
- Max Planck Institute for Molecular Genetics, Ihnestrasse 73, 14195, Berlin, Germany
| | - Sophie Pöhle-Kronawitter
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
| | - Vladimir Ugorets
- Institute of Chemistry and Biochemistry, Cell Signaling Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
| | - William Jarassier
- Institut NeuroMyoGène, CNRS UMR 5261, Inserm U1315, Université Claude Bernard Lyon 1, 69008, Lyon, France
| | - Stefan Börno
- Max Planck Institute for Molecular Genetics, Ihnestrasse 73, 14195, Berlin, Germany
| | - Bernd Timmermann
- Max Planck Institute for Molecular Genetics, Ihnestrasse 73, 14195, Berlin, Germany
| | | | | | - Fabien Le Grand
- Institut NeuroMyoGène, CNRS UMR 5261, Inserm U1315, Université Claude Bernard Lyon 1, 69008, Lyon, France
| | - Pedro Vallecillo-García
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
| | - Petra Knaus
- Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, 13353, Berlin, Germany
- Institute of Chemistry and Biochemistry, Cell Signaling Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
| | - Sven Geissler
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Julius Wolff Institute, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Charitéplatz 1, 10117, Berlin, Germany
- Berlin Center for Advanced Therapies (BECAT), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
| | - Sigmar Stricker
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany.
- Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, 13353, Berlin, Germany.
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22
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He X, Qin Z, Teng R, Tian M, Wang W, Feng Y, Chen H, He H, Zhang H, Liu D, Jiang X. Characterization of Growth Secondary Hair in Min Pig Activated by Follicle Stem Cell Stimulated by Wnt and BMP Signaling Pathway. Animals (Basel) 2023; 13:ani13071239. [PMID: 37048495 PMCID: PMC10093081 DOI: 10.3390/ani13071239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 04/07/2023] Open
Abstract
In China, the national-level protected pig, the Min pig, is characterized by the development of secondary hairs and hair follicles in winter. Factors that dominate the genotype in the growth of secondary hairs are not clear through the concrete cell signaling pathways. This study compared hair phenotypes based on morphological structure, transcriptomics, and potential targeting molecules in the breeds of Min, Berkshire, and Yorkshire pigs. The results indicated that Min pigs have specific characteristics for the growth of secondary hairs compared with the Berkshire and Yorkshire pigs. The transcriptome analyses and quantitative reverse transcription-polymerase chain reaction results revealed that secondary hair growth was activated by follicle stem cells. The specific inhibitors of Wnt and BMP were studied using respective signals. The density of follicles, activity of follicle stem cells, and relative gene expression results have shown that Wnt and BMP stimulate the activity of follicle stem cells, and the Wnt signaling molecule has a significantly better effect than the BMP signaling molecule on stem cells. Wnt and BMP can promote the growth of local secondary hair and gene expression. Therefore, this study was conducted to verify the development mechanisms of secondary hairs, which have potential applications in laboratory animals and comparative medicine.
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Affiliation(s)
- Xinmiao He
- Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Animal Husbandry Research Institute, Heilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Harbin 150086, China
| | - Ziliang Qin
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Ran Teng
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Ming Tian
- Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Animal Husbandry Research Institute, Heilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Harbin 150086, China
| | - Wentao Wang
- Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Animal Husbandry Research Institute, Heilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Harbin 150086, China
| | - Yanzhong Feng
- Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Animal Husbandry Research Institute, Heilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Harbin 150086, China
| | - Heshu Chen
- Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Animal Husbandry Research Institute, Heilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Harbin 150086, China
| | - Haijuan He
- Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Animal Husbandry Research Institute, Heilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Harbin 150086, China
| | - Haifeng Zhang
- Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Animal Husbandry Research Institute, Heilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Harbin 150086, China
| | - Di Liu
- Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Animal Husbandry Research Institute, Heilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Harbin 150086, China
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Xinpeng Jiang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
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23
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Wang Z, Yi X, Liu Y, Liu Q, Li Z, Yu A. Differential expression profiles and functional prediction of circRNA in mice with traumatic heterotopic ossification. Front Immunol 2023; 13:1090529. [PMID: 36713424 PMCID: PMC9878564 DOI: 10.3389/fimmu.2022.1090529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 12/16/2022] [Indexed: 01/13/2023] Open
Abstract
Background Traumatic heterotopic ossification (HO) is an intractable sequela incited by inflammatory insult. To date, the exact molecular mechanisms of traumatic HO formation remain unclear. Recent studies have indicated that circular RNAs (circRNAs) participate in various human skeletal diseases. Although the formation of HO recapitulates many programs during bone development and remodeling, few data are available concerning whether circRNAs could participate in this pathological osteogenesis. Methods To investigate the differentially expressed circRNAs (DE-circRNAs) in HO formation, microarray assay was performed to analyze the circRNA expression profile in four pairs of mice HO tissues and normal tissues. Then, qRT-PCR was applied to verify the microarray data. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses showed the biological functions of the differentially expressed circRNAs target genes. Cytoscape software was used to construct the circRNA-miRNA-mRNA network for circRNAs with different expression levels as well as the target genes. Results We demonstrated that 491 circRNAs were significantly differentially expressed in mouse HO tissues by a fold-change ≥ 2 and p-value ≤ 0.05. Among them, the expressions of 168 circRNAs were increased, while 323 were decreased. The expression levels of 10 selected circRNAs were verified successfully by qRT-PCR. GO analysis exhibited that these DE-circRNAs participated in a series of cellular processes. KEGG pathway analysis revealed that multiple upregulated and downregulated pathways were closely related to the DE-circRNAs in HO mice. The circRNA-miRNA-mRNA networks demonstrated that DE-circRNAs may be involved in the pathological osteogenesis of HO through the circRNA-targeted miRNA-mRNA axis. Conclusion Our study first demonstrated the expression profiles and predicted the potential functions of DE-circRNAs in mice traumatic HO, which may shed new light on the elucidation of mechanisms as well as provide novel potential peripheral biological diagnostic markers and therapeutic targets for traumatic HO.
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Affiliation(s)
| | | | | | - Qiaoyun Liu
- *Correspondence: Qiaoyun Liu, ; Zonghuan Li, ; Aixi Yu,
| | - Zonghuan Li
- *Correspondence: Qiaoyun Liu, ; Zonghuan Li, ; Aixi Yu,
| | - Aixi Yu
- *Correspondence: Qiaoyun Liu, ; Zonghuan Li, ; Aixi Yu,
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24
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Feng H, Jiang B, Xing W, Sun J, Greenblatt MB, Zou W. Skeletal stem cells: origins, definitions, and functions in bone development and disease. LIFE MEDICINE 2022; 1:276-293. [PMID: 36811112 PMCID: PMC9938638 DOI: 10.1093/lifemedi/lnac048] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/04/2022] [Indexed: 12/13/2022]
Abstract
Skeletal stem cells (SSCs) are tissue-specific stem cells that can self-renew and sit at the apex of their differentiation hierarchy, giving rise to mature skeletal cell types required for bone growth, maintenance, and repair. Dysfunction in SSCs is caused by stress conditions like ageing and inflammation and is emerging as a contributor to skeletal pathology, such as the pathogenesis of fracture nonunion. Recent lineage tracing experiments have shown that SSCs exist in the bone marrow, periosteum, and resting zone of the growth plate. Unraveling their regulatory networks is crucial for understanding skeletal diseases and developing therapeutic strategies. In this review, we systematically introduce the definition, location, stem cell niches, regulatory signaling pathways, and clinical applications of SSCs.
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Affiliation(s)
- Heng Feng
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Bo Jiang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Wenhui Xing
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Jun Sun
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Matthew B Greenblatt
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA,Research Division, Hospital for Special Surgery, New York, NY 10065, USA
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25
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Yamamoto M, Stoessel SJ, Yamamoto S, Goldhamer DJ. Overexpression of Wild-Type ACVR1 in Fibrodysplasia Ossificans Progressiva Mice Rescues Perinatal Lethality and Inhibits Heterotopic Ossification. J Bone Miner Res 2022; 37:2077-2093. [PMID: 35637634 PMCID: PMC9708949 DOI: 10.1002/jbmr.4617] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/22/2022] [Accepted: 05/28/2022] [Indexed: 11/07/2022]
Abstract
Fibrodysplasia ossificans progressiva (FOP) is a devastating disease of progressive heterotopic bone formation for which effective treatments are currently unavailable. FOP is caused by dominant gain-of-function mutations in the receptor ACVR1 (also known as ALK2), which render the receptor inappropriately responsive to activin ligands. In previous studies, we developed a genetic mouse model of FOP that recapitulates most clinical aspects of the disease. In this model, genetic loss of the wild-type Acvr1 allele profoundly exacerbated heterotopic ossification, suggesting the hypothesis that the stoichiometry of wild-type and mutant receptors dictates disease severity. Here, we tested this model by producing FOP mice that conditionally overexpress human wild-type ACVR1. Injury-induced heterotopic ossification (HO) was completely blocked in FOP mice when expression of both the mutant and wild-type receptor were targeted to Tie2-positive cells, which includes fibro/adipogenic progenitors (FAPs). Perinatal lethality of Acvr1R206H/+ mice was rescued by constitutive ACVR1 overexpression, and these mice survived to adulthood at predicted Mendelian frequencies. Constitutive overexpression of ACVR1 also provided protection from spontaneous abnormal skeletogenesis, and the incidence and severity of injury-induced HO in these mice was dramatically reduced. Analysis of pSMAD1/5/8 signaling both in cultured cells and in vivo indicates that ACVR1 overexpression functions cell-autonomously by reducing osteogenic signaling in response to activin A. We propose that ACVR1 overexpression inhibits HO by decreasing the abundance of ACVR1(R206H)-containing signaling complexes at the cell surface while increasing the representation of activin-A-bound non-signaling complexes comprised of wild-type ACVR1. © 2022 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Masakazu Yamamoto
- Department of Molecular and Cell BiologyUniversity of Connecticut Stem Cell Institute, University of ConnecticutStorrsCTUSA
| | - Sean J Stoessel
- Department of Molecular and Cell BiologyUniversity of Connecticut Stem Cell Institute, University of ConnecticutStorrsCTUSA
| | - Shoko Yamamoto
- Department of Molecular and Cell BiologyUniversity of Connecticut Stem Cell Institute, University of ConnecticutStorrsCTUSA
| | - David J Goldhamer
- Department of Molecular and Cell BiologyUniversity of Connecticut Stem Cell Institute, University of ConnecticutStorrsCTUSA
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26
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Fetuin-A is an immunomodulator and a potential therapeutic option in BMP4-dependent heterotopic ossification and associated bone mass loss. Bone Res 2022; 10:62. [PMID: 36289197 PMCID: PMC9605967 DOI: 10.1038/s41413-022-00232-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 11/08/2022] Open
Abstract
Heterotopic ossification (HO) is the abnormal formation of bone in extraskeletal sites. However, the mechanisms linking HO pathogenesis with bone mass dysfunction remain unclear. Here, we showed that mice harboring injury-induced and BMP4-dependent HO exhibit bone mass loss similar to that presented by patients with HO. Moreover, we found that injury-induced hyperinflammatory responses at the injury site triggered HO initiation but did not result in bone mass loss at 1 day post-injury (dpi). In contrast, a suppressive immune response promoted HO propagation and bone mass loss by 7 dpi. Correcting immune dysregulation by PD1/PDL1 blockade dramatically alleviated HO propagation and bone mass loss. We further demonstrated that fetuin-A (FetA), which has been frequently detected in HO lesions but rarely observed in HO-adjacent normal bone, acts as an immunomodulator to promote PD1 expression and M2 macrophage polarization, leading to immunosuppression. Intervention with recombinant FetA inhibited hyperinflammation and prevented HO and associated bone mass loss. Collectively, our findings provide new insights into the osteoimmunological interactions that occur during HO formation and suggest that FetA is an immunosuppressor and a potential therapeutic option for the treatment of HO.
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Yang YS, Kim JM, Xie J, Chaugule S, Lin C, Ma H, Hsiao E, Hong J, Chun H, Shore EM, Kaplan FS, Gao G, Shim JH. Suppression of heterotopic ossification in fibrodysplasia ossificans progressiva using AAV gene delivery. Nat Commun 2022; 13:6175. [PMID: 36258013 PMCID: PMC9579182 DOI: 10.1038/s41467-022-33956-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 10/04/2022] [Indexed: 12/24/2022] Open
Abstract
Heterotopic ossification is the most disabling feature of fibrodysplasia ossificans progressiva, an ultra-rare genetic disorder for which there is currently no prevention or treatment. Most patients with this disease harbor a heterozygous activating mutation (c.617 G > A;p.R206H) in ACVR1. Here, we identify recombinant AAV9 as the most effective serotype for transduction of the major cells-of-origin of heterotopic ossification. We use AAV9 delivery for gene replacement by expression of codon-optimized human ACVR1, ACVR1R206H allele-specific silencing by AAV-compatible artificial miRNA and a combination of gene replacement and silencing. In mouse skeletal cells harboring a conditional knock-in allele of human mutant ACVR1 and in patient-derived induced pluripotent stem cells, AAV gene therapy ablated aberrant Activin A signaling and chondrogenic and osteogenic differentiation. In Acvr1(R206H) knock-in mice treated locally in early adulthood or systemically at birth, trauma-induced endochondral bone formation was markedly reduced, while inflammation and fibroproliferative responses remained largely intact in the injured muscle. Remarkably, spontaneous heterotopic ossification also substantially decreased in in Acvr1(R206H) knock-in mice treated systemically at birth or in early adulthood. Collectively, we develop promising gene therapeutics that can prevent disabling heterotopic ossification in mice, supporting clinical translation to patients with fibrodysplasia ossificans progressiva.
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Affiliation(s)
- Yeon-Suk Yang
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Jung-Min Kim
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Jun Xie
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA, USA
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA, USA
- Viral Vector Core, UMass Chan Medical School, Worcester, MA, USA
| | - Sachin Chaugule
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Chujiao Lin
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA
| | - Hong Ma
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA, USA
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA, USA
- Viral Vector Core, UMass Chan Medical School, Worcester, MA, USA
| | - Edward Hsiao
- Division of Endocrinology and Metabolism, Department of Medicine; the Institute for Human Genetics; the Program in Craniofacial Biology; and the Eli and Edyth Broad Institute of Regeneration Medicine, University of California-San Francisco, San Francisco, CA, USA
| | - Jaehyoung Hong
- Department of Mathematical Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Hyonho Chun
- Department of Mathematical Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Eileen M Shore
- Department of Orthopaedic Surgery, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
- Department of Genetics, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
- The Center for Research in FOP and Related Disorders, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Frederick S Kaplan
- Department of Orthopaedic Surgery, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
- The Center for Research in FOP and Related Disorders, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
- Department of Medicine, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Guangping Gao
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA, USA.
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA, USA.
- Viral Vector Core, UMass Chan Medical School, Worcester, MA, USA.
- Li Weibo Institute for Rare Diseases Research, UMass Chan Medical School, Worcester, MA, USA.
| | - Jae-Hyuck Shim
- Department of Medicine/Division of Rheumatology, UMass Chan Medical School, Worcester, MA, USA.
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA, USA.
- Li Weibo Institute for Rare Diseases Research, UMass Chan Medical School, Worcester, MA, USA.
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28
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Functional Heterogeneity of Bone Marrow Mesenchymal Stem Cell Subpopulations in Physiology and Pathology. Int J Mol Sci 2022; 23:ijms231911928. [PMID: 36233230 PMCID: PMC9570000 DOI: 10.3390/ijms231911928] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
Bone marrow mesenchymal stem cells (BMSCs) are multi-potent cell populations and are capable of maintaining bone and body homeostasis. The stemness and potential therapeutic effect of BMSCs have been explored extensively in recent years. However, diverse cell surface antigens and complex gene expression of BMSCs have indicated that BMSCs represent heterogeneous populations, and the natural characteristics of BMSCs make it difficult to identify the specific subpopulations in pathological processes which are often obscured by bulk analysis of the total BMSCs. Meanwhile, the therapeutic effect of total BMSCs is often less effective partly due to their heterogeneity. Therefore, understanding the functional heterogeneity of the BMSC subpopulations under different physiological and pathological conditions could have major ramifications for global health. Here, we summarize the recent progress of functional heterogeneity of BMSC subpopulations in physiology and pathology. Targeting tissue-resident single BMSC subpopulation offers a potentially innovative therapeutic strategy and improves BMSC effectiveness in clinical application.
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Fu J, Zhang J, Jiang T, Ao X, Li P, Lian Z, Li C, Zhang X, Liu J, Huang M, Zhang Z, Wang L. mTORC1 coordinates NF-κB signaling pathway to promote chondrogenic differentiation of tendon cells in heterotopic ossification. Bone 2022; 163:116507. [PMID: 35908648 DOI: 10.1016/j.bone.2022.116507] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 11/02/2022]
Abstract
Heterotopic ossification (HO) is a pathological bone formation based on endochondral ossification distinguished by ossification within muscles, tendons, or other soft tissues. There has been growing studies focusing on the treatment with rapamycin to inhibit HO, but the mechanism of mTORC1 on HO remains unclear. Tendon cells (TDs) are the first cells to form during tendon heterotopic ossification. Here, we used an in vivo model of HO and an in vitro model of chondrogenesis induction to elucidate the effect and underlying mechanism of mTORC1 in HO. The current study highlights the effect of rapamycin on murine Achilles tenotomy-induced HO and the role of mTORC1 signaling pathway on TDs. Our result showed that mTORC1 was activation in the early stage of HO, whereas the mTORC1 maintained low expression in the mature ectopic cartilage tissue and the ectopic bone formation sites. The use of mTORC1-specific inhibitor (rapamycin) immediately after Achilles tendon injury could suppress the formation of HO; once ectopic cartilage and bone had formed, treatment with rapamycin could not significantly inhibit the progression of HO. Mechanistically, mTORC1 stimulation by silencing of TSC1 promoted the expression of the chondrogenic markers in TDs. In TDs, treated with mTORC1 stimulation by silencing of TSC1, mTORC1 increased the activation of the NF-κB signaling pathway. NF-κB selective inhibitor BAY11-7082 significantly suppressed the chondrogenesis of TDs that treated with mTORC1 stimulation by silencing of TSC1. Together, our findings demonstrated that mTORC1 promoted HO by regulating TDs chondrogenesis partly through the NF-κB signaling pathway; and rapamycin could be a viable HO therapeutic regimen.
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Affiliation(s)
- Jiaming Fu
- Division of Spine Surgery, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jie Zhang
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou 510630, China; Academy of Orthopaedics, Guangdong Province, Guangzhou 510630, China
| | - Tao Jiang
- Division of Spine Surgery, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xiang Ao
- Division of Spine Surgery, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Peng Li
- Division of Spine Surgery, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhengnan Lian
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou 510630, China; Academy of Orthopaedics, Guangdong Province, Guangzhou 510630, China
| | - Chenglong Li
- Division of Spine Surgery, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xibing Zhang
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou 510630, China; Academy of Orthopaedics, Guangdong Province, Guangzhou 510630, China
| | - Jie Liu
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou 510630, China; Academy of Orthopaedics, Guangdong Province, Guangzhou 510630, China
| | - Minjun Huang
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou 510630, China; Academy of Orthopaedics, Guangdong Province, Guangzhou 510630, China
| | - Zhongmin Zhang
- Division of Spine Surgery, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Liang Wang
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou 510630, China; Academy of Orthopaedics, Guangdong Province, Guangzhou 510630, China.
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30
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Eekhoff EM, de Ruiter RD, Smilde BJ, Schoenmaker T, de Vries TJ, Netelenbos C, Hsiao EC, Scott C, Haga N, Grunwald Z, De Cunto CL, di Rocco M, Delai PLR, Diecidue RJ, Madhuri V, Cho TJ, Morhart R, Friedman CS, Zasloff M, Pals G, Shim JH, Gao G, Kaplan F, Pignolo RJ, Micha D. Gene Therapy for Fibrodysplasia Ossificans Progressiva: Feasibility and Obstacles. Hum Gene Ther 2022; 33:782-788. [PMID: 35502479 PMCID: PMC9419966 DOI: 10.1089/hum.2022.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 04/06/2022] [Indexed: 02/02/2023] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP) is a rare and devastating genetic disease, in which soft connective tissue is converted into heterotopic bone through an endochondral ossification process. Patients succumb early as they gradually become trapped in a second skeleton of heterotopic bone. Although the underlying genetic defect is long known, the inherent complexity of the disease has hindered the discovery of effective preventions and treatments. New developments in the gene therapy field have motivated its consideration as an attractive therapeutic option for FOP. However, the immune system's role in FOP activation and the as-yet unknown primary causative cell, are crucial issues which must be taken into account in the therapy design. While gene therapy offers a potential therapeutic solution, more knowledge about FOP is needed to enable its optimal and safe application.
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Affiliation(s)
- Elisabeth M.W. Eekhoff
- Section Endocrinology, Department of Internal Medicine, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam Rare Bone Disease Center, Amsterdam Bone Center, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Ruben D. de Ruiter
- Section Endocrinology, Department of Internal Medicine, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam Rare Bone Disease Center, Amsterdam Bone Center, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Bernard J. Smilde
- Section Endocrinology, Department of Internal Medicine, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam Rare Bone Disease Center, Amsterdam Bone Center, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Ton Schoenmaker
- Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, Vrije Universiteit, Amsterdam, The Netherlands
| | - Teun J. de Vries
- Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, Vrije Universiteit, Amsterdam, The Netherlands
| | - Coen Netelenbos
- Section Endocrinology, Department of Internal Medicine, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam Rare Bone Disease Center, Amsterdam Bone Center, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Edward C. Hsiao
- Division of Endocrinology and Metabolism, Department of Medicine, Institute for Human Genetics, Program in Craniofacial Biology, the Institute for Regeneration Medicine, University of California, San Francisco, California, USA
| | - Christiaan Scott
- Division of Paediatric Rheumatology, Department of Paediatrics and Child Heath, Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa
| | - Nobuhiko Haga
- Rehabilitation Services Bureau, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, Japan
| | - Zvi Grunwald
- Department of Anesthesiology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, USA
| | - Carmen L. De Cunto
- Department of Pediatrics, Section Pediatric Rheumatology, Hospital Italiano Buenos Aires, Argentina
| | - Maja di Rocco
- Department of Pediatrics, Unit of Rare Diseases, IRCCS Giannina Gaslini Institute, Genoa, Italy
| | - Patricia L. R. Delai
- Teaching and Research Institute of the Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| | - Robert J. Diecidue
- Department of Oral and Maxillofacial Surgery, Sidney Kimmel Medical College, Philadelphia, USA
| | - Vrisha Madhuri
- Department of Paediatric Orthopaedics and Center for Stem Cell Research, Christian Medical College and Hospital, Vellore, India
| | - Tae-Joon Cho
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Rolf Morhart
- Department of Pediatrics, Garmisch-Partenkichen Medical Center, Garmisch-Partenkirchen, Germany
| | - Clive S. Friedman
- Schulich School of Medicine and Dentistry, Western University, Clinical Skills Building, London, Ontario, Canada
| | - Michael Zasloff
- Surgery and Pediatrics, MedStar Georgetown Transplant Institute, Washington, District of Columbia, USA
| | - Gerard Pals
- Department of Human Genetics, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam Rare Bone Disease Center, Amsterdam Bone Center, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Jae-Hyuck Shim
- Department of Medicine/Rheumatology, Horae Gene Therapy Center, Li Weibo Institute for Rare Diseases Research, UMass Chan Medical School, Worcester, Massachusetts, USA
| | - Guangping Gao
- Department of Microbiology and Physiological Systems, Horae Gene Therapy Center, Viral Vector Core, Li Weibo Institute for Rare Diseases Research, UMass Chan Medical School, Worcester, Massachusetts, USA
| | - Frederick Kaplan
- Department of Orthopaedic Surgery and Medicine, Center for Research in FOP and Related Disorders, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Dimitra Micha
- Department of Human Genetics, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam Rare Bone Disease Center, Amsterdam Bone Center, Amsterdam Movement Sciences, Amsterdam, The Netherlands
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31
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Hwang CD, Pagani CA, Nunez JH, Cherief M, Qin Q, Gomez-Salazar M, Kadaikal B, Kang H, Chowdary AR, Patel N, James AW, Levi B. Contemporary perspectives on heterotopic ossification. JCI Insight 2022; 7:158996. [PMID: 35866484 PMCID: PMC9431693 DOI: 10.1172/jci.insight.158996] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Heterotopic ossification (HO) is the formation of ectopic bone that is primarily genetically driven (fibrodysplasia ossificans progressiva [FOP]) or acquired in the setting of trauma (tHO). HO has undergone intense investigation, especially over the last 50 years, as awareness has increased around improving clinical technologies and incidence, such as with ongoing wartime conflicts. Current treatments for tHO and FOP remain prophylactic and include NSAIDs and glucocorticoids, respectively, whereas other proposed therapeutic modalities exhibit prohibitive risk profiles. Contemporary studies have elucidated mechanisms behind tHO and FOP and have described new distinct niches independent of inflammation that regulate ectopic bone formation. These investigations have propagated a paradigm shift in the approach to treatment and management of a historically difficult surgical problem, with ongoing clinical trials and promising new targets.
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Affiliation(s)
- Charles D Hwang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Massachusetts General Hospital, Harvard University, Boston, Massachusetts, USA
| | - Chase A Pagani
- Department of Surgery, Center for Organogenesis Research and Trauma, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Johanna H Nunez
- Department of Surgery, Center for Organogenesis Research and Trauma, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Masnsen Cherief
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Qizhi Qin
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland, USA
| | | | - Balram Kadaikal
- Department of Surgery, Center for Organogenesis Research and Trauma, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Heeseog Kang
- Department of Surgery, Center for Organogenesis Research and Trauma, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Ashish R Chowdary
- Department of Surgery, Center for Organogenesis Research and Trauma, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Nicole Patel
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Aaron W James
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Benjamin Levi
- Department of Surgery, Center for Organogenesis Research and Trauma, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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32
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Zou N, Liu R, Li C. Cathepsin K+ Non-Osteoclast Cells in the Skeletal System: Function, Models, Identity, and Therapeutic Implications. Front Cell Dev Biol 2022; 10:818462. [PMID: 35912093 PMCID: PMC9326176 DOI: 10.3389/fcell.2022.818462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 05/31/2022] [Indexed: 11/13/2022] Open
Abstract
Cathepsin K (Ctsk) is a cysteine protease of the papain superfamily initially identified in differentiated osteoclasts; it plays a critical role in degrading the bone matrix. However, subsequent in vivo and in vitro studies based on animal models elucidate novel subpopulations of Ctsk-expressing cells, which display markers and properties of mesenchymal stem/progenitor cells. This review introduces the function, identity, and role of Ctsk+ cells and their therapeutic implications in related preclinical osseous disorder models. It also summarizes the available in vivo models for studying Ctsk+ cells and their progeny. Further investigations of detailed properties and mechanisms of Ctsk+ cells in transgenic models are required to guide potential therapeutic targets in multiple diseases in the future.
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Affiliation(s)
- Nanyu Zou
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Ran Liu
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Changjun Li
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- *Correspondence: Changjun Li,
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33
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Negri S, Wang Y, Li Z, Qin Q, Lee S, Cherief M, Xu J, Hsu GCY, Tower RJ, Presson B, Levin A, McCarthy E, Levi B, James AW. Acetabular Reaming Is a Reliable Model to Produce and Characterize Periarticular Heterotopic Ossification of the Hip. Stem Cells Transl Med 2022; 11:876-888. [PMID: 35758541 PMCID: PMC9397657 DOI: 10.1093/stcltm/szac042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 05/07/2022] [Indexed: 11/17/2022] Open
Abstract
Heterotopic ossification (HO) is a pathologic process characterized by the formation of bone tissue in extraskeletal locations. The hip is a common location of HO, especially as a complication of arthroplasty. Here, we devise a first-of-its-kind mouse model of post-surgical hip HO and validate expected cell sources of HO using several HO progenitor cell reporter lines. To induce HO, an anterolateral surgical approach to the hip was used, followed by disclocation and acetabular reaming. Animals were analyzed with high-resolution roentgenograms and micro-computed tomography, conventional histology, immunohistochemistry, and assessments of fluorescent reporter activity. All the treated animals' developed periarticular HO with an anatomical distribution similar to human patients after arthroplasty. Heterotopic bone was found in periosteal, inter/intramuscular, and intracapsular locations. Further, the use of either PDGFRα or scleraxis (Scx) reporter mice demonstrated that both cell types gave rise to periarticular HO in this model. In summary, acetabular reaming reproducibly induces periarticular HO in the mouse reproducing human disease, and with defined mesenchymal cellular contributors similar to other experimental HO models. This protocol may be used in the future for further detailing of the cellular and molecular mediators of post-surgical HO, as well as the screening of new therapies.
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Affiliation(s)
| | | | - Zhao Li
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - Qizhi Qin
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - Seungyong Lee
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - Masnsen Cherief
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - Jiajia Xu
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | | | - Robert Joel Tower
- Center for Organogenesis Research and Trauma, University of Texas Southwestern, Dallas, TX, USA
| | - Bradley Presson
- Orthopaedic and Trauma Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology of the University of Verona, Verona, Italy
| | - Adam Levin
- Department of Orthopaedics, Johns Hopkins University, Baltimore, MD, USA
| | - Edward McCarthy
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - Benjamin Levi
- Center for Organogenesis Research and Trauma, University of Texas Southwestern, Dallas, TX, USA
| | - Aaron W James
- Corresponding author: Aaron W. James, 720 Rutland Avenue, Room 524A, Baltimore, MD 21205, USA. Tel: +1 410 502 4143; Fax: +1 410 955 9777;
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34
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Pathophysiology and Emerging Molecular Therapeutic Targets in Heterotopic Ossification. Int J Mol Sci 2022; 23:ijms23136983. [PMID: 35805978 PMCID: PMC9266941 DOI: 10.3390/ijms23136983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/19/2022] [Accepted: 06/22/2022] [Indexed: 12/23/2022] Open
Abstract
The term heterotopic ossification (HO) describes bone formation in tissues where bone is normally not present. Musculoskeletal trauma induces signalling events that in turn trigger cells, probably of mesenchymal origin, to differentiate into bone. The aetiology of HO includes extremely rare but severe, generalised and fatal monogenic forms of the disease; and as a common complex disorder in response to musculoskeletal, neurological or burn trauma. The resulting bone forms through a combination of endochondral and intramembranous ossification, depending on the aetiology, initiating stimulus and affected tissue. Given the heterogeneity of the disease, many cell types and biological pathways have been studied in efforts to find effective therapeutic strategies for the disorder. Cells of mesenchymal, haematopoietic and neuroectodermal lineages have all been implicated in the pathogenesis of HO, and the emerging dominant signalling pathways are thought to occur through the bone morphogenetic proteins (BMP), mammalian target of rapamycin (mTOR), and retinoic acid receptor pathways. Increased understanding of these disease mechanisms has resulted in the emergence of several novel investigational therapeutic avenues, including palovarotene and other retinoic acid receptor agonists and activin A inhibitors that target both canonical and non-canonical signalling downstream of the BMP type 1 receptor. In this article we aim to illustrate the key cellular and molecular mechanisms involved in the pathogenesis of HO and outline recent advances in emerging molecular therapies to treat and prevent HO that have had early success in the monogenic disease and are currently being explored in the common complex forms of HO.
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35
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Aykul S, Huang L, Wang L, Das NM, Reisman S, Ray Y, Zhang Q, Rothman NJ, Nannuru KC, Kamat V, Brydges S, Troncone L, Johnsen L, Yu PB, Fazio S, Lees-Shepard J, Schutz K, Murphy AJ, Economides AN, Idone V, Hatsell SJ. ACVR1 antibodies exacerbate heterotopic ossification in fibrodysplasia ossificans progressiva (FOP) by activating FOP-mutant ACVR1. J Clin Invest 2022; 132:153792. [PMID: 35511419 PMCID: PMC9197526 DOI: 10.1172/jci153792] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 04/28/2022] [Indexed: 11/21/2022] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disorder whose most debilitating pathology is progressive and cumulative heterotopic ossification (HO) of skeletal muscles, ligaments, tendons, and fascia. FOP is caused by mutations in the type I BMP receptor gene ACVR1, which enable ACVR1 to utilize its natural antagonist, activin A, as an agonistic ligand. The physiological relevance of this property is underscored by the fact that HO in FOP is exquisitely dependent on activation of FOP-mutant ACVR1 by activin A, an effect countered by inhibition of anti–activin A via monoclonal antibody treatment. Hence, we surmised that anti-ACVR1 antibodies that block activation of ACVR1 by ligands should also inhibit HO in FOP and provide an additional therapeutic option for this condition. Therefore, we generated anti-ACVR1 monoclonal antibodies that block ACVR1’s activation by its ligands. Surprisingly, in vivo, these anti-ACVR1 antibodies stimulated HO and activated signaling of FOP-mutant ACVR1. This property was restricted to FOP-mutant ACVR1 and resulted from anti-ACVR1 antibody–mediated dimerization of ACVR1. Conversely, wild-type ACVR1 was inhibited by anti-ACVR1 antibodies. These results uncover an additional property of FOP-mutant ACVR1 and indicate that anti-ACVR1 antibodies should not be considered as therapeutics for FOP.
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Affiliation(s)
- Senem Aykul
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Lily Huang
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Lili Wang
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Nanditha M Das
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Sandra Reisman
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Yonaton Ray
- Department of Therapeutic Proteins, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Qian Zhang
- Department of Aging/Age-Related Disorders, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Nyanza J Rothman
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Kalyan C Nannuru
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Vishal Kamat
- Department of Therapeutic Proteins, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Susannah Brydges
- Velocigene, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Luca Troncone
- Department of Medicine, Harvard Medical School, Boston, United States of America
| | - Laura Johnsen
- Research Program Management, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Paul B Yu
- Department of Medicine, Harvard Medical School, Boston, United States of America
| | - Sergio Fazio
- Research Council, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - John Lees-Shepard
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Kevin Schutz
- Antibody Engineering, Adimab, Lebanon, United States of America
| | - Andrew J Murphy
- Regeneron Pharmaceuticals, Inc., Tarryrtown, United States of America
| | - Aris N Economides
- Genome Engineering Technologies, and Skeletal Diseases, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Vincent Idone
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
| | - Sarah J Hatsell
- Skeletal Diseases Therapeutic Focus Area, Regeneron Pharmaceuticals, Inc., Tarrytown, United States of America
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36
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Lees-Shepard JB, Stoessel SJ, Chandler JT, Bouchard K, Bento P, Apuzzo LN, Devarakonda PM, Hunter JW, Goldhamer DJ. An anti-ACVR1 antibody exacerbates heterotopic ossification by fibro-adipogenic progenitors in fibrodysplasia ossificans progressiva mice. J Clin Invest 2022; 132:153795. [PMID: 35503416 PMCID: PMC9197527 DOI: 10.1172/jci153795] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 04/29/2022] [Indexed: 11/17/2022] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disease characterized by progressive and catastrophic heterotopic ossification (HO) of skeletal muscle and associated soft tissues. FOP is caused by dominantly acting mutations in the gene encoding the bone morphogenetic protein (BMP) type I receptor, ACVR1 (ALK2), the most prevalent of which results in an arginine to histidine substitution at position 206[ACVR1(R206H)]. The fundamental pathological consequence of FOP-causing ACVR1 receptor mutations is to enable activin A to initiate canonical BMP signaling in fibro-adipogenic progenitors (FAPs), which drives HO. We developed a monoclonal blocking antibody (JAB0505) to the extracellular domain of ACVR1 and tested its effect on HO in two independent FOP mouse models. Although JAB0505 inhibited BMP-dependent gene expression in wild-type and ACVR1(R206H)-overexpressing cell lines, JAB0505 treatment profoundly exacerbated injury-induced HO. JAB0505-treated mice exhibited multiple, distinct foci of heterotopic lesions, suggesting an atypically broad anatomical domain of FAP recruitment to endochondral ossification. This was accompanied by dysregulated FAP population growth and an abnormally sustained immunological reaction following muscle injury. JAB0505 drove injury-induced HO in the absence of activin A, indicating that JAB0505 has receptor agonist activity. These data raise serious safety and efficacy concerns for the use of bivalent anti-ACVR1 antibodies to treat patients with FOP.
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Affiliation(s)
- John B Lees-Shepard
- Skeletal Diseases, Regeneron Pharmaceuticals, Tarrytown, United States of America
| | - Sean J Stoessel
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, United States of America
| | - Julian T Chandler
- Discovery Research, Alexion Pharmaceuticals, New Haven, United States of America
| | - Keith Bouchard
- Discovery Research, Alexion Pharmaceuticals, New Haven, United States of America
| | - Patricia Bento
- Product Development and Clinical Supply, Alexion Pharmaceuticals, New Haven, United States of America
| | - Lorraine N Apuzzo
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, United States of America
| | | | - Jeffrey W Hunter
- Discovery Research, Alexion Pharmaceuticals, New Haven, United States of America
| | - David J Goldhamer
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, United States of America
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37
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Wang X, Liu S, Yu T, An S, Deng R, Tan X, Crane J, Zhang W, Pan D, Wan M, Carr A, Cao X. Inhibition of Integrin αvβ6 Activation of TGF-β Attenuates Tendinopathy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104469. [PMID: 35166070 PMCID: PMC9009110 DOI: 10.1002/advs.202104469] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/29/2021] [Indexed: 05/27/2023]
Abstract
Tendinopathy is a common tendon disorder that causes pain and impairs function. It is the most common reason for consultation with musculoskeletal specialists. The available therapies for tendinopathy are limited in number and efficacy and have unclear cellular and molecular mechanisms. Here it is shown that transforming growth factor-beta (TGF-β) activated by integrin αvβ6 promotes tendinopathy in mice. Excessive active TGF-β is found during tendinopathy progression, which led to tenocytes' phenotype transition to chondrocytes. Transgenic expression of active TGF-β in tendons induced spontaneous tendinopathy, whereas systemic injection of a TGF-β neutralizing antibody attenuated tendinopathy. Inducible knockout of the TGF-β type 2 receptor gene (Tgfbr2) in tenocytes inhibited tendinopathy progression in mice. Moreover, it is found that integrin αvβ6 induces TGF-β activation in response to mechanical load in tendons. Conditional knockout of the integrin αv gene in tendons prevented tendinopathy in mice. The study suggests that integrin αvβ6 activation of TGF-β is the mechanism of tendinopathy, and that integrin αvβ6 may be a therapeutic target in tendinopathy.
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Affiliation(s)
- Xiao Wang
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Shen Liu
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Tao Yu
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Senbo An
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Ruoxian Deng
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Xiaohua Tan
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Janet Crane
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Weixin Zhang
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Dayu Pan
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Mei Wan
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Andrew Carr
- Nuffield Department of OrthopaedicsRheumatology and Musculoskeletal SciencesUniversity of OxfordOxfordOX3 7LDUK
| | - Xu Cao
- Department of Orthopaedic SurgeryThe Johns Hopkins University School of MedicineBaltimoreMD21205USA
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38
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Development and Regeneration of Muscle, Tendon, and Myotendinous Junctions in Striated Skeletal Muscle. Int J Mol Sci 2022; 23:ijms23063006. [PMID: 35328426 PMCID: PMC8950615 DOI: 10.3390/ijms23063006] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/05/2022] [Accepted: 03/08/2022] [Indexed: 12/04/2022] Open
Abstract
Owing to a rapid increase in aging population in recent years, the deterioration of motor function in older adults has become an important social problem, and several studies have aimed to investigate the mechanisms underlying muscle function decline. Furthermore, structural maintenance of the muscle–tendon–bone complexes in the muscle attachment sites is important for motor function, particularly for joints; however, the development and regeneration of these complexes have not been studied thoroughly and require further elucidation. Recent studies have provided insights into the roles of mesenchymal progenitors in the development and regeneration of muscles and myotendinous junctions. In particular, studies on muscles and myotendinous junctions have—through the use of the recently developed scRNA-seq—reported the presence of syncytia, thereby suggesting that fibroblasts may be transformed into myoblasts in a BMP-dependent manner. In addition, the high mobility group box 1—a DNA-binding protein found in nuclei—is reportedly involved in muscle regeneration. Furthermore, studies have identified several factors required for the formation of locomotor apparatuses, e.g., tenomodulin (Tnmd) and mohawk (Mkx), which are essential for tendon maturation.
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39
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Tseng HW, Girard D, Alexander KA, Millard SM, Torossian F, Anginot A, Fleming W, Gueguen J, Goriot ME, Clay D, Jose B, Nowlan B, Pettit AR, Salga M, Genêt F, Bousse-Kerdilès MCL, Banzet S, Lévesque JP. Spinal cord injury reprograms muscle fibroadipogenic progenitors to form heterotopic bones within muscles. Bone Res 2022; 10:22. [PMID: 35217633 PMCID: PMC8881504 DOI: 10.1038/s41413-022-00188-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 11/21/2021] [Accepted: 12/06/2021] [Indexed: 12/30/2022] Open
Abstract
The cells of origin of neurogenic heterotopic ossifications (NHOs), which develop frequently in the periarticular muscles following spinal cord injuries (SCIs) and traumatic brain injuries, remain unclear because skeletal muscle harbors two progenitor cell populations: satellite cells (SCs), which are myogenic, and fibroadipogenic progenitors (FAPs), which are mesenchymal. Lineage-tracing experiments using the Cre recombinase/LoxP system were performed in two mouse strains with the fluorescent protein ZsGreen specifically expressed in either SCs or FAPs in skeletal muscles under the control of the Pax7 or Prrx1 gene promoter, respectively. These experiments demonstrate that following muscle injury, SCI causes the upregulation of PDGFRα expression on FAPs but not SCs and the failure of SCs to regenerate myofibers in the injured muscle, with reduced apoptosis and continued proliferation of muscle resident FAPs enabling their osteogenic differentiation into NHOs. No cells expressing ZsGreen under the Prrx1 promoter were detected in the blood after injury, suggesting that the cells of origin of NHOs are locally derived from the injured muscle. We validated these findings using human NHO biopsies. PDGFRα+ mesenchymal cells isolated from the muscle surrounding NHO biopsies could develop ectopic human bones when transplanted into immunocompromised mice, whereas CD56+ myogenic cells had a much lower potential. Therefore, NHO is a pathology of the injured muscle in which SCI reprograms FAPs to undergo uncontrolled proliferation and differentiation into osteoblasts.
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Affiliation(s)
- Hsu-Wen Tseng
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | - Dorothée Girard
- Institut de Recherche Biomédicale des Armées (IRBA), INSERM UMRS-MD, 1197, Clamart, France
| | - Kylie A Alexander
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | - Susan M Millard
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | - Frédéric Torossian
- INSERM UMRS-MD 1197, Université de Paris-Saclay, Hôpital Paul Brousse, Villejuif, France
| | - Adrienne Anginot
- INSERM UMRS-MD 1197, Université de Paris-Saclay, Hôpital Paul Brousse, Villejuif, France
| | - Whitney Fleming
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | - Jules Gueguen
- Institut de Recherche Biomédicale des Armées (IRBA), INSERM UMRS-MD, 1197, Clamart, France
| | | | - Denis Clay
- INSERM UMS-44, Université de Paris-Saclay, Hôpital Paul Brousse, Villejuif, France
| | - Beulah Jose
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | - Bianca Nowlan
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | - Allison R Pettit
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | - Marjorie Salga
- UPOH (Unité Péri Opératoire du Handicap, Perioperative Disability Unit), Physical and Rehabilitation Medicine department, Raymond-Poincaré Hospital, Assistance Publique - Hôpitaux de Paris (AP-HP), Garches, France.,Université de Versailles Saint Quentin en Yvelines, UFR Simone Veil - Santé, END:ICAP INSERM U1179, Montigny le Bretonneux, France
| | - François Genêt
- UPOH (Unité Péri Opératoire du Handicap, Perioperative Disability Unit), Physical and Rehabilitation Medicine department, Raymond-Poincaré Hospital, Assistance Publique - Hôpitaux de Paris (AP-HP), Garches, France.,Université de Versailles Saint Quentin en Yvelines, UFR Simone Veil - Santé, END:ICAP INSERM U1179, Montigny le Bretonneux, France
| | | | - Sébastien Banzet
- Institut de Recherche Biomédicale des Armées (IRBA), INSERM UMRS-MD, 1197, Clamart, France.
| | - Jean-Pierre Lévesque
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia.
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40
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Xu Y, Huang M, He W, He C, Chen K, Hou J, Huang M, Jiao Y, Liu R, Zou N, Liu L, Li C. Heterotopic Ossification: Clinical Features, Basic Researches, and Mechanical Stimulations. Front Cell Dev Biol 2022; 10:770931. [PMID: 35145964 PMCID: PMC8824234 DOI: 10.3389/fcell.2022.770931] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 01/03/2022] [Indexed: 12/13/2022] Open
Abstract
Heterotopic ossification (HO) is defined as the occurrence of extraskeletal bone in soft tissue. Although this pathological osteogenesis process involves the participation of osteoblasts and osteoclasts during the formation of bone structures, it differs from normal physiological osteogenesis in many features. In this article, the primary characteristics of heterotopic ossification are reviewed from both clinical and basic research perspectives, with a special highlight on the influence of mechanics on heterotopic ossification, which serves an important role in the prophylaxis and treatment of HO.
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Affiliation(s)
- Yili Xu
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Mei Huang
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Wenzhen He
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Chen He
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Kaixuan Chen
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Jing Hou
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Min Huang
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Yurui Jiao
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Ran Liu
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Nanyu Zou
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Ling Liu
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China
| | - Changjun Li
- Department of Endocrinology, Endocrinology Research Center, The Xiangya Hospital of Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
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41
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Maruyama R, Nguyen Q, Roshmi RR, Touznik A, Yokota T. Allele-Selective Locked Nucleic Acid Gapmers for the Treatment of Fibrodysplasia Ossificans Progressiva Knock Down the Pathogenic ACVR1 R206H Transcript and Inhibit Osteogenic Differentiation. Nucleic Acid Ther 2022; 32:185-193. [PMID: 35085461 DOI: 10.1089/nat.2021.0009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP) is a rare autosomal dominant disorder characterized by episodic heterotopic ossification. The median life span of people with this disorder is ∼40 years, and currently, there is no effective treatment available. More than 95% of cases are caused by a recurrent mutation (c.617G>A; R206H) of Activin A receptor, type I (ACVR1)/Activin receptor-like kinase-2 (ALK2), a bone morphogenetic protein type I receptor. The mutation renders ACVR1 responsive to activin A, which does not activate wild-type ACVR1. Ectopic activation of ACVR1R206H by activin A induces heterotopic ossification. Since ACVR1R206H is a hyperactive receptor, a promising therapeutic strategy is to decrease the activity of mutated ACVR1. To accomplish this goal, we developed locked nucleic acid (LNA) gapmers. These are short DNA oligonucleotides with LNA modification at both ends. They induce targeted mRNA degradation and specific knockdown of gene expression. We demonstrated that some of these gapmers efficiently knocked down ACVR1R206H expression at RNA levels, while ACVR1WT was mostly unaffected in human FOP fibroblasts. Also, the gapmers suppressed osteogenic differentiation induced by ACVR1R206H and activin A. These gapmers may be promising drug candidates for FOP. This novel strategy will also pave the way for antisense-mediated therapy of other autosomal dominant disorders.
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Affiliation(s)
- Rika Maruyama
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Quynh Nguyen
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Rohini Roy Roshmi
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Aleksander Touznik
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Toshifumi Yokota
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada.,The Friends of Garrett Cumming Research & Muscular Dystrophy Canada HM Toupin Neurological Science Research Chair, Edmonton, Canada
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42
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Hedgehog signaling underlying tendon and enthesis development and pathology. Matrix Biol 2022; 105:87-103. [PMID: 34954379 PMCID: PMC8821161 DOI: 10.1016/j.matbio.2021.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/18/2021] [Accepted: 12/19/2021] [Indexed: 02/08/2023]
Abstract
Hedgehog (Hh) signaling has been widely acknowledged to play essential roles in many developmental processes, including endochondral ossification and growth plate maintenance. Furthermore, a rising number of studies have shown that Hh signaling is necessary for tendon enthesis development. Specifically, the well-tuned regulation of Hh signaling during development drives the formation of a mineral gradient across the tendon enthesis fibrocartilage. However, aberrant Hh signaling can also lead to pathologic heterotopic ossification in tendon or osteophyte formation at the enthesis. Therefore, the therapeutic potential of Hh signaling modulation for treating tendon and enthesis diseases remains uncertain. For example, increased Hh signaling may enhance tendon-to-bone healing by promoting the formation of mineralized fibrocartilage at the healing interface, but pathologic heterotopic ossification may also be triggered in the adjacent tendon. Further work is needed to elucidate the distinct functions of Hh signaling in the tendon and enthesis to support the development of therapies that target the pathway.
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43
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Towler OW, Shore EM. BMP signaling and skeletal development in fibrodysplasia ossificans progressiva (FOP). Dev Dyn 2022; 251:164-177. [PMID: 34133058 PMCID: PMC9068236 DOI: 10.1002/dvdy.387] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/07/2021] [Accepted: 05/20/2021] [Indexed: 01/03/2023] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP) is an ultra-rare genetic disease caused by increased BMP pathway signaling due to mutation of ACVR1, a bone morphogenetic protein (BMP) type 1 receptor. The primary clinical manifestation of FOP is extra-skeletal bone formation (heterotopic ossification) within soft connective tissues. However, the underlying ACVR1 mutation additionally alters skeletal bone development and nearly all people born with FOP have bilateral malformation of the great toes as well as other skeletal malformations at diverse anatomic sites. The specific mechanisms through which ACVR1 mutations and altered BMP pathway signaling in FOP influence skeletal bone formation during development remain to be elucidated; however, recent investigations are providing a clearer understanding of the molecular and developmental processes associated with ACVR1-regulated skeletal formation.
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Affiliation(s)
- Oscar Will Towler
- The Center for Research in FOP & Related Disorders, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA,Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Eileen M. Shore
- The Center for Research in FOP & Related Disorders, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA,Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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44
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Barruet E, Garcia SM, Wu J, Morales BM, Tamaki S, Moody T, Pomerantz JH, Hsiao EC. Modeling the ACVR1 R206H mutation in human skeletal muscle stem cells. eLife 2021; 10:66107. [PMID: 34755602 PMCID: PMC8691832 DOI: 10.7554/elife.66107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 11/09/2021] [Indexed: 11/13/2022] Open
Abstract
Abnormalities in skeletal muscle repair can lead to poor function and complications such as scarring or heterotopic ossification (HO). Here, we use fibrodysplasia ossificans progressiva (FOP), a disease of progressive HO caused by ACVR1R206H (Activin receptor type-1 receptor) mutation, to elucidate how ACVR1 affects skeletal muscle repair. Rare and unique primary FOP human muscle stem cells (Hu-MuSCs) isolated from cadaveric skeletal muscle demonstrated increased extracellular matric (ECM) marker expression, showed skeletal muscle-specific impaired engraftment and regeneration ability. Human induced pluripotent stem cell (iPSC)-derived muscle stem/progenitor cells (iMPCs) single-cell transcriptome analyses from FOP also revealed unusually increased ECM and osteogenic marker expression compared to control iMPCs. These results show that iMPCs can recapitulate many aspects of Hu-MuSCs for detailed in vitro study; that ACVR1 is a key regulator of Hu-MuSC function and skeletal muscle repair; and that ACVR1 activation in iMPCs or Hu-MuSCs may contribute to HO by changing the local tissue environment.
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Affiliation(s)
- Emilie Barruet
- Departments of Surgery and Orofacial Sciences, Division of Plastic Surgery, Program in Craniofacial Biology, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, United States
| | - Steven M Garcia
- Departments of Surgery and Orofacial Sciences, Division of Plastic Surgery, Program in Craniofacial Biology, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, United States
| | - Jake Wu
- Departments of Surgery and Orofacial Sciences, Division of Plastic Surgery, Program in Craniofacial Biology, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, United States
| | - Blanca M Morales
- Institute for Human Genetics, University of California, San Francisco, San Francisco, United States
| | - Stanley Tamaki
- Departments of Surgery and Orofacial Sciences, Division of Plastic Surgery, Program in Craniofacial Biology, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, United States
| | - Tania Moody
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Francisco, San Francisco, United States
| | - Jason H Pomerantz
- Departments of Surgery and Orofacial Sciences, Division of Plastic Surgery, Program in Craniofacial Biology, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, United States
| | - Edward C Hsiao
- Division of Endocrinology and Metabolism, Department of Medicine Institute for Human Genetics, University of California, San Francisco, San Francisco, United States
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45
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Delgado Caceres M, Angerpointner K, Galler M, Lin D, Michel PA, Brochhausen C, Lu X, Varadarajan AR, Warfsmann J, Stange R, Alt V, Pfeifer CG, Docheva D. Tenomodulin knockout mice exhibit worse late healing outcomes with augmented trauma-induced heterotopic ossification of Achilles tendon. Cell Death Dis 2021; 12:1049. [PMID: 34741033 PMCID: PMC8571417 DOI: 10.1038/s41419-021-04298-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/05/2021] [Accepted: 10/07/2021] [Indexed: 12/23/2022]
Abstract
Heterotopic ossification (HO) represents a common problem after tendon injury with no effective treatment yet being developed. Tenomodulin (Tnmd), the best-known mature marker for tendon lineage cells, has important effects in tendon tissue aging and function. We have reported that loss of Tnmd leads to inferior early tendon repair characterized by fibrovascular scaring and therefore hypothesized that its lack will persistently cause deficient repair during later stages. Tnmd knockout (Tnmd-/-) and wild-type (WT) animals were subjected to complete Achilles tendon surgical transection followed by end-to-end suture. Lineage tracing revealed a reduction in tendon-lineage cells marked by ScleraxisGFP, but an increase in alpha smooth muscle actin myofibroblasts in Tnmd-/- tendon scars. At the proliferative stage, more pro-inflammatory M1 macrophages and larger collagen II cartilaginous template were detected in this group. At the remodeling stage, histological scoring revealed lower repair quality in the injured Tnmd-/- tendons, which was coupled with higher HO quantified by micro-CT. Tendon biomechanical properties were compromised in both groups upon injury, however we identified an abnormal stiffening of non-injured Tnmd-/- tendons, which possessed higher static and dynamic E-moduli. Pathologically thicker and abnormally shaped collagen fibrils were observed by TEM in Tnmd-/- tendons and this, together with augmented HO, resulted in diminished running capacity of Tnmd-/- mice. These novel findings demonstrate that Tnmd plays a protecting role against trauma-induced endochondral HO and can inspire the generation of novel therapeutics to accelerate repair.
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Affiliation(s)
- Manuel Delgado Caceres
- Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
| | - Katharina Angerpointner
- Hand, Elbow and Plastic Surgery Department, Schön Klinik München Harlaching, Munich, Germany
| | - Michael Galler
- Department of Trauma Surgery, Caritas Hospital St. Josef, Regensburg, Germany
| | - Dasheng Lin
- Orthopaedic Center of People's Liberation Army, The Affiliated Southeast Hospital of Xiamen University, Zhangzhou, China
| | - Philipp A Michel
- Department of Trauma-, Hand-, and Reconstructive Surgery, University Hospital Münster, Münster, Germany
| | | | - Xin Lu
- Division of Personalized Tumor Therapy, Fraunhofer Institute for Toxicology and Experimental Medicine, Regensburg, Germany
| | - Adithi R Varadarajan
- Division of Personalized Tumor Therapy, Fraunhofer Institute for Toxicology and Experimental Medicine, Regensburg, Germany
| | - Jens Warfsmann
- Division of Personalized Tumor Therapy, Fraunhofer Institute for Toxicology and Experimental Medicine, Regensburg, Germany
| | - Richard Stange
- Department of Regenerative Musculoskeletal Medicine, Institute for Musculoskeletal Medicine, University Hospital Münster, Westfälische Wilhelms-University, Münster, Germany
| | - Volker Alt
- Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
- Clinic and Policlinic for Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
| | - Christian G Pfeifer
- Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
- Clinic and Policlinic for Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
| | - Denitsa Docheva
- Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany.
- Department of Musculoskeletal Tissue Regeneration, Orthopaedic Hospital König-Ludwig-Haus, University of Würzburg, Würzburg, Germany.
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Jin W, Lin X, Pan H, Zhao C, Qiu P, Zhao R, Hu Z, Zhou Y, Wu H, Chen X, Ouyang H, Xie Z, Tang R. Engineered osteoclasts as living treatment materials for heterotopic ossification therapy. Nat Commun 2021; 12:6327. [PMID: 34732696 PMCID: PMC8566554 DOI: 10.1038/s41467-021-26593-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/14/2021] [Indexed: 01/14/2023] Open
Abstract
Osteoclasts (OCs), the only cells capable of remodeling bone, can demineralize calcium minerals biologically. Naive OCs have limitations for the removal of ectopic calcification, such as in heterotopic ossification (HO), due to their restricted activity, migration and poor adhesion to sites of ectopic calcification. HO is the formation of pathological mature bone within extraskeletal soft tissues, and there are currently no reliable methods for removing these unexpected calcified plaques. In the present study, we develop a chemical approach to modify OCs with tetracycline (TC) to produce engineered OCs (TC-OCs) with an enhanced capacity for targeting and adhering to ectopic calcified tissue due to a broad affinity for calcium minerals. Unlike naive OCs, TC-OCs are able to effectively remove HO both in vitro and in vivo. This achievement indicates that HO can be reversed using modified OCs and holds promise for engineering cells as "living treatment agents" for cell therapy.
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Affiliation(s)
- Wenjing Jin
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, 310006, China
| | - Xianfeng Lin
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
| | - Haihua Pan
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Chenchen Zhao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
| | - Pengcheng Qiu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
| | - Ruibo Zhao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310018, China
| | - Zihe Hu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, 310006, China
| | - Yanyan Zhou
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, 310006, China
| | - Haiyan Wu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, 310006, China
| | - Xiao Chen
- Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hongwei Ouyang
- Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhijian Xie
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, 310006, China.
| | - Ruikang Tang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China.
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang, 310027, China.
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Peters N, Baltin CT, Barham M, Wevers A. An unusual finding: Heterotopic ossification located in the subcutis of the iliac region – A case report in the context of current literature. TRANSLATIONAL RESEARCH IN ANATOMY 2021. [DOI: 10.1016/j.tria.2021.100137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Macrophages in heterotopic ossification: from mechanisms to therapy. NPJ Regen Med 2021; 6:70. [PMID: 34702860 PMCID: PMC8548514 DOI: 10.1038/s41536-021-00178-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 09/30/2021] [Indexed: 01/04/2023] Open
Abstract
Heterotopic ossification (HO) is the formation of extraskeletal bone in non-osseous tissues. It is caused by an injury that stimulates abnormal tissue healing and regeneration, and inflammation is involved in this process. It is worth noting that macrophages are crucial mediators of inflammation. In this regard, abundant macrophages are recruited to the HO site and contribute to HO progression. Macrophages can acquire different functional phenotypes and promote mesenchymal stem cell (MSC) osteogenic differentiation, chondrogenic differentiation, and angiogenesis by expressing cytokines and other factors such as the transforming growth factor-β1 (TGF-β1), bone morphogenetic protein (BMP), activin A (Act A), oncostatin M (OSM), substance P (SP), neurotrophin-3 (NT-3), and vascular endothelial growth factor (VEGF). In addition, macrophages significantly contribute to the hypoxic microenvironment, which primarily drives HO progression. Thus, these have led to an interest in the role of macrophages in HO by exploring whether HO is a "butterfly effect" event. Heterogeneous macrophages are regarded as the "butterflies" that drive a sequence of events and ultimately promote HO. In this review, we discuss how the recruitment of macrophages contributes to HO progression. In particular, we review the molecular mechanisms through which macrophages participate in MSC osteogenic differentiation, angiogenesis, and the hypoxic microenvironment. Understanding the diverse role of macrophages may unveil potential targets for the prevention and treatment of HO.
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Chen Y, Sun Y, Xu Y, Lin WW, Luo Z, Han Z, Liu S, Qi B, Sun C, Go K, Kang XR, Chen J. Single-Cell Integration Analysis of Heterotopic Ossification and Fibrocartilage Developmental Lineage: Endoplasmic Reticulum Stress Effector Xbp1 Transcriptionally Regulates the Notch Signaling Pathway to Mediate Fibrocartilage Differentiation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:7663366. [PMID: 34737845 PMCID: PMC8563124 DOI: 10.1155/2021/7663366] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/21/2021] [Accepted: 10/01/2021] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Regeneration of fibrochondrocytes is essential for the healing of the tendon-bone interface (TBI), which is similar to the formation of neurogenic heterotopic ossification (HO). Through single-cell integrative analysis, this study explored the homogeneity of HO cells and fibrochondrocytes. METHODS This study integrated six datasets, namely, GSE94683, GSE144306, GSE168153, GSE138515, GSE102929, and GSE110993. The differentiation trajectory and key transcription factors (TFs) for HO occurrence were systematically analyzed by integrating single-cell RNA (scRNA) sequencing, bulk RNA sequencing, and assay of transposase accessible chromatin seq. The differential expression and enrichment pathways of TFs in heterotopically ossified tissues were identified. RESULTS HO that mimicked pathological cells was classified into HO1 and HO2 cell subsets. Results of the pseudo-temporal sequence analysis suggested that HO2 is a differentiated precursor cell of HO1. The analysis of integrated scRNA data revealed that ectopically ossified cells have similar transcriptional characteristics to cells in the fibrocartilaginous zone of tendons. The modified SCENIC method was used to identify specific transcriptional regulators associated with ectopic ossification. Xbp1 was defined as a common key transcriptional regulator of ectopically ossified tissues and the fibrocartilaginous zone of tendons. Subsequently, the CellPhoneDB database was completed for the cellular ligand-receptor analysis. With further pathway screening, this study is the first to propose that Xbp1 may upregulate the Notch signaling pathway through Jag1 transcription. Twenty-four microRNAs were screened and were found to be potentially associated with upregulation of XBP1 expression after acute ischemic stroke. CONCLUSION A systematic analysis of the differentiation landscape and cellular homogeneity facilitated a molecular understanding of the phenotypic similarities between cells in the fibrocartilaginous region of tendon and HO cells. Furthermore, by identifying Xbp1 as a hub regulator and by conducting a ligand-receptor analysis, we propose a potential Xbp1/Jag1/Notch signaling pathway.
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Affiliation(s)
- Yisheng Chen
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, China
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yaying Sun
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yuzhen Xu
- Department of Rehabilitation, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong Province 271000, China
| | - Wei-Wei Lin
- Department of Neurosurgery, Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou, 310009 Zhejiang, China
| | - Zhiwen Luo
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhihua Han
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Shaohua Liu
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Beijie Qi
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Chenyu Sun
- Internal Medicine, AMITA Health Saint Joseph Hospital Chicago, 2900 N. Lake Shore Drive, Chicago, 60657 Illinois, USA
| | - Ken Go
- Department of Clinical Training Centre, St. Marianna Hospital, Tokyo, Japan
| | - x.-R. Kang
- Shanghai Jiao Tong University, Shanghai 200080, China
| | - Jiwu Chen
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, China
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Mizoguchi T, Ono N. The diverse origin of bone-forming osteoblasts. J Bone Miner Res 2021; 36:1432-1447. [PMID: 34213032 PMCID: PMC8338797 DOI: 10.1002/jbmr.4410] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 06/29/2021] [Accepted: 06/29/2021] [Indexed: 12/17/2022]
Abstract
Osteoblasts are the only cells that can give rise to bones in vertebrates. Thus, one of the most important functions of these metabolically active cells is mineralized matrix production. Because osteoblasts have a limited lifespan, they must be constantly replenished by preosteoblasts, their immediate precursors. Because disruption of the regulation of bone-forming osteoblasts results in a variety of bone diseases, a better understanding of the origin of these cells by defining the mechanisms of bone development, remodeling, and regeneration is central to the development of novel therapeutic approaches. In recent years, substantial new insights into the origin of osteoblasts-largely owing to rapid technological advances in murine lineage-tracing approaches and other single-cell technologies-have been obtained. Collectively, these findings indicate that osteoblasts involved in bone formation under various physiological, pathological, and therapeutic conditions can be obtained from numerous sources. The origins of osteoblasts include, but are not limited to, chondrocytes in the growth plate, stromal cells in the bone marrow, quiescent bone-lining cells on the bone surface, and specialized fibroblasts in the craniofacial structures, such as sutures and periodontal ligaments. Because osteoblasts can be generated from local cellular sources, bones can flexibly respond to regenerative and anabolic cues. However, whether osteoblasts derived from different cellular sources have distinct functions remains to be investigated. Currently, we are at the initial stage to aptly unravel the incredible diversity of the origins of bone-forming osteoblasts. © 2021 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
| | - Noriaki Ono
- University of Texas Health Science Center at Houston School of Dentistry, Houston, TX, USA
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