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Fu J, Liu W, Liu S, Zhao R, Hayashi T, Zhao H, Xiang Y, Mizuno K, Hattori S, Fujisaki H, Ikejima T. Inhibition of YAP/TAZ pathway contributes to the cytotoxicity of silibinin in MCF-7 and MDA-MB-231 human breast cancer cells. Cell Signal 2024; 119:111186. [PMID: 38643945 DOI: 10.1016/j.cellsig.2024.111186] [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: 01/29/2024] [Revised: 04/14/2024] [Accepted: 04/18/2024] [Indexed: 04/23/2024]
Abstract
Breast cancer is one of the most common cancers threatening women's health. Our previous study found that silibinin induced the death of MCF-7 and MDA-MB-231 human breast cancer cells. We noticed that silibinin-induced cell damage was accompanied by morphological changes, including the increased cell aspect ratio (cell length/width) and decreased cell area. Besides, the cytoskeleton is also destroyed in cells treated with silibinin. YAP/TAZ, a mechanical signal sensor interacted with extracellular pressure, cell adhesion area and cytoskeleton, is also closely associated with cell survival, proliferation and migration. Thus, the involvement of YAP/TAZ in the cytotoxicity of silibinin in breast cancer cells has attracted our interests. Excitingly, we find that silibinin inhibits the nuclear translocation of YAP/TAZ in MCF-7 and MDA-MB-231 cells, and reduces the mRNA expressions of YAP/TAZ target genes, ACVR1, MnSOD and ANKRD. More importantly, expression of YAP1 gene is negatively correlated with the survival of the patients with breast cancers. Molecular docking analysis reveals high probabilities for binding of silibinin to the proteins in the YAP pathways. DARTS and CETSA results confirm the binding abilities of silibinin to YAP and LATS. Inhibiting YAP pathway either by addition of verteporfin, an inhibitor of YAP/TAZ-TEAD, or by transfection of si-RNAs targeting YAP or TAZ further enhances silibinin-induced cell damage. While enhancing YAP activity by silencing LATS1/2 or overexpressing YAPS127/397A, an active form of YAP, attenuates silibinin-induced cell damage. These findings demonstrate that inhibition of the YAP/TAZ pathway contributes to cytotoxicity of silibinin in breast cancers, shedding lights on YAP/TAZ-targeted cancer therapies.
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Affiliation(s)
- Jianing Fu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Weiwei Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Siyu Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Ruxiao Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Toshihiko Hayashi
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China; Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Haina Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Yinlanqi Xiang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Kazunori Mizuno
- Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Shunji Hattori
- Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Hitomi Fujisaki
- Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Takashi Ikejima
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China; Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning, China.
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Li Z, Lin J, Wu J, Suo J, Wang Z. The Hippo signalling pathway in bone homeostasis: Under the regulation of mechanics and aging. Cell Prolif 2024:e13652. [PMID: 38700015 DOI: 10.1111/cpr.13652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/04/2024] [Accepted: 04/18/2024] [Indexed: 05/05/2024] Open
Abstract
The Hippo signalling pathway is a conserved kinase cascade that orchestrates diverse cellular processes, such as proliferation, apoptosis, lineage commitment and stemness. With the onset of society ages, research on skeletal aging-mechanics-bone homeostasis has exploded. In recent years, aging and mechanical force in the skeletal system have gained groundbreaking research progress. Under the regulation of mechanics and aging, the Hippo signalling pathway has a crucial role in the development and homeostasis of bone. We synthesize the current knowledge on the role of the Hippo signalling pathway, particularly its downstream effectors yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ), in bone homeostasis. We discuss the regulation of the lineage specification and function of different skeletal cell types by the Hippo signalling pathway. The interactions of the Hippo signalling pathway with other pathways, such as Wnt, transforming growth factor beta and nuclear factor kappa-B, are also mentioned because of their importance for modulating bone homeostasis. Furthermore, YAP/TAZ have been extensively studied as mechanotransducers. Due to space limitations, we focus on reviewing how mechanical forces and aging influence cell fate, communications and homeostasis through a dysregulated Hippo signalling pathway.
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Affiliation(s)
- Zhengda Li
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences and Shanghai Jing'an District Central Hospital, Fudan University, Shanghai, China
| | - Junqing Lin
- Institute of Microsurgery on Extremities, and Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai, Shanghai, China
| | - Jing Wu
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences and Shanghai Jing'an District Central Hospital, Fudan University, Shanghai, China
| | - Jinlong Suo
- Institute of Microsurgery on Extremities, and Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai, Shanghai, China
| | - Zuoyun Wang
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences and Shanghai Jing'an District Central Hospital, Fudan University, Shanghai, China
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Lounev V, Groppe JC, Brewer N, Wentworth KL, Smith V, Xu M, Schomburg L, Bhargava P, Al Mukaddam M, Hsiao EC, Shore EM, Pignolo RJ, Kaplan FS. Matrix metalloproteinase-9 deficiency confers resilience in fibrodysplasia ossificans progressiva in a man and mice. J Bone Miner Res 2024; 39:382-398. [PMID: 38477818 DOI: 10.1093/jbmr/zjae029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/11/2024] [Accepted: 02/13/2024] [Indexed: 03/14/2024]
Abstract
Single case studies of extraordinary disease resilience may provide therapeutic insight into conditions for which no definitive treatments exist. An otherwise healthy 35-year-old man (patient-R) with the canonical pathogenic ACVR1R206H variant and the classic congenital great toe malformation of fibrodysplasia ossificans progressiva (FOP) had extreme paucity of post-natal heterotopic ossification (HO) and nearly normal mobility. We hypothesized that patient-R lacked a sufficient post-natal inflammatory trigger for HO. A plasma biomarker survey revealed a reduction in total matrix metalloproteinase-9 (MMP-9) compared to healthy controls and individuals with quiescent FOP. Whole exome sequencing identified compound heterozygous variants in MMP-9 (c.59C > T, p.A20V and c.493G > A, p.D165N). Structural analysis of the D165N variant predicted both decreased MMP-9 secretion and activity that were confirmed by enzyme-linked immunosorbent assay and gelatin zymography. Further, human proinflammatory M1-like macrophages expressing either MMP-9 variant produced significantly less Activin A, an obligate ligand for HO in FOP, compared to wildtype controls. Importantly, MMP-9 inhibition by genetic, biologic, or pharmacologic means in multiple FOP mouse models abrogated trauma-induced HO, sequestered Activin A in the extracellular matrix (ECM), and induced regeneration of injured skeletal muscle. Our data suggest that MMP-9 is a druggable node linking inflammation to HO, orchestrates an existential role in the pathogenesis of FOP, and illustrates that a single patient's clinical phenotype can reveal critical molecular mechanisms of disease that unveil novel treatment strategies.
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Affiliation(s)
- Vitali Lounev
- Department of Orthopaedic Surgery, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
- The Center for Research in FOP and Related Disorders, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
| | - Jay C Groppe
- Department of Biomedical Sciences, Texas A & M University College of Dentistry, Dallas, TX 75246-2013, United States
| | - Niambi Brewer
- Department of Orthopaedic Surgery, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
- The Center for Research in FOP and Related Disorders, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
| | - Kelly L Wentworth
- Department of Medicine, Division of Endocrinology and Metabolism, Zuckerberg San Francisco General Hospital, University of California, San Francisco, CA 94143-0794, United States
- Department of Medicine, University of California, San Francisco, CA 94143-0794, United States
| | | | - Meiqi Xu
- Department of Orthopaedic Surgery, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
- The Center for Research in FOP and Related Disorders, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
| | - Lutz Schomburg
- Institute for Experimental Endocrinology, Charite University Hospital, D-10115 Berlin, Germany
| | | | - Mona Al Mukaddam
- Department of Orthopaedic Surgery, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
- The Center for Research in FOP and Related Disorders, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
- Department of Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
| | - Edward C Hsiao
- Department of Medicine, University of California, San Francisco, CA 94143-0794, United States
- Division of Endocrinology and Metabolism, The Institute for Human Genetics, the Program in Craniofacial Biology, University of California, San Francisco, CA 94143-0794, United States
| | - Eileen M Shore
- Department of Orthopaedic Surgery, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
- The Center for Research in FOP and Related Disorders, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
- Department of Genetics, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
| | - Robert J Pignolo
- Department of Medicine, Mayo Clinic College of Medicine, Mayo Clinic, Rochester, MN 55905, United States
| | - Frederick S Kaplan
- Department of Orthopaedic Surgery, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
- The Center for Research in FOP and Related Disorders, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
- Department of Medicine, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, United States
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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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5
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Zhang Z, Zhang X, Wei X, Yu C, Xiao L, Liu J, Liu Y, Cao Y, Song K. IRE1α inhibits osteogenic differentiation of mouse embryonic fibroblasts by limiting Shh signaling. Oral Dis 2024. [PMID: 38438324 DOI: 10.1111/odi.14919] [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: 09/25/2023] [Revised: 02/18/2024] [Accepted: 02/23/2024] [Indexed: 03/06/2024]
Abstract
OBJECTIVES This study aimed to investigate the effect of endoplasmic reticulum (ER) stress sensor inositol-requiring enzyme 1α (IRE1α) on the sonic hedgehog N-terminus (N-Shh)-enhanced-osteogenic differentiation process in mouse embryonic fibroblasts (MEFs). MATERIALS AND METHODS Osteogenesis of MEFs was observed by alkaline phosphatase (ALP) staining, alizarin red staining, and Von Kossa staining assays. Activation of unfolded protein response and Shh signaling were examined using real-time quantitative PCR and western blot assays. IRE1α-deficient MEFs were used to explore the effect of IRE1α on N-Shh-driven osteogenesis. RESULTS N-Shh increased ALP activity, matrix mineralization, and the expression of Alp and Col-I in MEFs under osteogenic conditions; notably, this was reversed when combined with the ER stress activator Tm treatment. Interestingly, the administration of N-Shh decreased the expression of IRE1α. Abrogation of IRE1α increased the expression of Shh pathway factors in osteogenesis-induced MEFs, contributing to the osteogenic effect of N-Shh. Moreover, IRE1α-deficient MEFs exhibited elevated levels of osteogenic markers. CONCLUSIONS Our findings suggest that the IRE1α-mediated unfolded protein response may alleviate the ossification of MEFs by attenuating Shh signaling. Our research has identified a strategy to inhibit excessive ossification, which may have clinical significance in preventing temporomandibular joint bony ankylosis.
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Affiliation(s)
- Zhixiang Zhang
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Prosthodontics and Implantology, School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, Hubei, China
| | - Xuan Zhang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Frontier Science Center for Immunology and Metabolism, and the Institute for Advanced Studies, Wuhan University, Wuhan, Hubei, China
| | - Xiangzhen Wei
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Frontier Science Center for Immunology and Metabolism, and the Institute for Advanced Studies, Wuhan University, Wuhan, Hubei, China
| | - Chengbo Yu
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Prosthodontics and Implantology, School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, Hubei, China
| | - Li Xiao
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Prosthodontics and Implantology, School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, Hubei, China
| | - Jianmiao Liu
- Cellular Signaling Laboratory, Key Laboratory of Molecular Biophysics of Ministry of Education, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yong Liu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Frontier Science Center for Immunology and Metabolism, and the Institute for Advanced Studies, Wuhan University, Wuhan, Hubei, China
| | - Yingguang Cao
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Prosthodontics and Implantology, School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, Hubei, China
| | - Ke Song
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Prosthodontics and Implantology, School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, Hubei, China
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Melo US, Jatzlau J, Prada-Medina CA, Flex E, Hartmann S, Ali S, Schöpflin R, Bernardini L, Ciolfi A, Moeinzadeh MH, Klever MK, Altay A, Vallecillo-García P, Carpentieri G, Delledonne M, Ort MJ, Schwestka M, Ferrero GB, Tartaglia M, Brusco A, Gossen M, Strunk D, Geißler S, Mundlos S, Stricker S, Knaus P, Giorgio E, Spielmann M. Enhancer hijacking at the ARHGAP36 locus is associated with connective tissue to bone transformation. Nat Commun 2023; 14:2034. [PMID: 37041138 PMCID: PMC10090176 DOI: 10.1038/s41467-023-37585-8] [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: 06/08/2022] [Accepted: 03/21/2023] [Indexed: 04/13/2023] Open
Abstract
Heterotopic ossification is a disorder caused by abnormal mineralization of soft tissues in which signaling pathways such as BMP, TGFβ and WNT are known key players in driving ectopic bone formation. Identifying novel genes and pathways related to the mineralization process are important steps for future gene therapy in bone disorders. In this study, we detect an inter-chromosomal insertional duplication in a female proband disrupting a topologically associating domain and causing an ultra-rare progressive form of heterotopic ossification. This structural variant lead to enhancer hijacking and misexpression of ARHGAP36 in fibroblasts, validated here by orthogonal in vitro studies. In addition, ARHGAP36 overexpression inhibits TGFβ, and activates hedgehog signaling and genes/proteins related to extracellular matrix production. Our work on the genetic cause of this heterotopic ossification case has revealed that ARHGAP36 plays a role in bone formation and metabolism, outlining first details of this gene contributing to bone-formation and -disease.
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Affiliation(s)
- Uirá Souto Melo
- Max Planck Institute for Molecular Genetics, Development and Disease Group, 14195, Berlin, Germany.
- Institute for Medical Genetics and Human Genetics, Charité University Medicine Berlin, 13353, Berlin, Germany.
| | - Jerome Jatzlau
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, 14195, Berlin, Germany
| | - Cesar A Prada-Medina
- Max Planck Institute for Molecular Genetics, Development and Disease Group, 14195, Berlin, Germany
| | - Elisabetta Flex
- Istituto Superiore di Sanità, Department of Oncology and Molecular Medicine, 00161, Rome, Italy
| | - Sunhild Hartmann
- Max Planck Institute for Molecular Genetics, Development and Disease Group, 14195, Berlin, Germany
| | - Salaheddine Ali
- Max Planck Institute for Molecular Genetics, Development and Disease Group, 14195, Berlin, Germany
| | - Robert Schöpflin
- Max Planck Institute for Molecular Genetics, Development and Disease Group, 14195, Berlin, Germany
| | - Laura Bernardini
- Cytogenetics Unit, Casa Sollievo della Sofferenza Foundation, IRCCS, 71013, San Giovanni Rotondo, Foggia, Italy
| | - Andrea Ciolfi
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | - M-Hossein Moeinzadeh
- Max Planck Institute for Molecular Genetics, Department of Computational Molecular Biology, 14195, Berlin, Germany
| | - Marius-Konstantin Klever
- Max Planck Institute for Molecular Genetics, Development and Disease Group, 14195, Berlin, Germany
- Institute for Medical Genetics and Human Genetics, Charité University Medicine Berlin, 13353, Berlin, Germany
| | - Aybuge Altay
- Max Planck Institute for Molecular Genetics, Department of Computational Molecular Biology, 14195, Berlin, Germany
| | | | - Giovanna Carpentieri
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | | | - Melanie-Jasmin Ort
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, 14195, Berlin, Germany
- Julius Wolff Institute (JWI), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, 13353, Berlin, Germany
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, 10117, Berlin, Germany
| | - Marko Schwestka
- Institute of Active Polymers, Helmholtz-Zentrum Hereon, 14513, Teltow, Germany
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353, Berlin, Germany
| | | | - Marco Tartaglia
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | - Alfredo Brusco
- Department of Medical Sciences, University of Torino, 10126, Torino, Italy
- Medical Genetics Unit, Città della Salute e della Scienza University Hospital, Torino, 10126, Italy
| | - Manfred Gossen
- Institute of Active Polymers, Helmholtz-Zentrum Hereon, 14513, Teltow, Germany
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353, Berlin, Germany
| | - Dirk Strunk
- Cell Therapy Institute, Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University (PMU), 5020, Salzburg, Austria
| | - Sven Geißler
- Julius Wolff Institute (JWI), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, 13353, Berlin, Germany
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, 10117, Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353, Berlin, Germany
| | - Stefan Mundlos
- Max Planck Institute for Molecular Genetics, Development and Disease Group, 14195, Berlin, Germany
- Institute for Medical Genetics and Human Genetics, Charité University Medicine Berlin, 13353, Berlin, Germany
| | - Sigmar Stricker
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, 14195, Berlin, Germany
| | - Petra Knaus
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, 14195, Berlin, Germany
| | - Elisa Giorgio
- Department of Molecular Medicine, University of Pavia, 27100, Pavia, Italy.
- Medical Genetics Unit, IRCCS Mondino Foundation, 27100, Pavia, Italy.
| | - Malte Spielmann
- Max Planck Institute for Molecular Genetics, Development and Disease Group, 14195, Berlin, Germany.
- Institute of Human Genetics, University Hospitals Schleswig-Holstein, University of Lübeck and University of Kiel, Lübeck, 23562, Germany.
- DZHK (German Centre for Cardiovascular Research) Germany, partner site Hamburg, Lübeck, Kiel, Lübeck, 23562, Germany.
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7
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Xie M, Dai H, Gu Q, Xiao C, Wang H, Lei Y, Wu C, Li X, Lin B, Li S. Identification of genes contributing to cisplatin resistance in osteosarcoma cells. FEBS Open Bio 2022; 13:164-173. [PMID: 36408691 PMCID: PMC9808595 DOI: 10.1002/2211-5463.13524] [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: 07/27/2022] [Revised: 11/08/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
Osteosarcomas are prevalent in children and young adults and have a high recurrence rate. Cisplatin, doxorubicin, and methotrexate are common adjuvant chemotherapy drugs for treatment of osteosarcoma, but multidrug resistance is a growing problem. Therefore, understanding the molecular mechanisms of chemotherapy resistance in osteosarcoma cells is crucial for developing new therapeutic approaches and ultimately improving the prognosis of osteosarcoma patients. To identify genes associated with cisplatin resistance in osteosarcoma, we screened a large-scale mutant library generated by transfecting human osteosarcoma cells with a piggyBac (PB) transposon-based gene activation vector. Several candidate genes were identified by using Splinkerette-PCR paired with Next Generation Sequencing. We created a disease-free survival predictor model, which includes ZNF720, REEP3, CNNM2, and CGREF1, using TARGET (Therapeutically Applicable Research to Generate Effective Treatments) datasets. Additionally, the results of our enrichment analysis between the Four_genes_high group and Low_group suggested that these four genes may participate in cisplatin resistance in osteosarcoma through cross talk between various signaling pathways, especially the signaling pathway related to bone formation. These data may help guide future studies into chemotherapy for osteosarcoma.
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Affiliation(s)
- Mingzhong Xie
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Haoping Dai
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Qingwen Gu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Changming Xiao
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Haozhong Wang
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Yang Lei
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Chunxiao Wu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Xuening Li
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Birong Lin
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Sen Li
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
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8
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Huang D, Xu K, Huang X, Lin N, Ye Y, Lin S, Zhang J, Shao J, Chen S, Shi M, Zhou X, Lin P, Xue Y, Yu C, Yu X, Ye Z, Cheng K. Remotely Temporal Scheduled Macrophage Phenotypic Transition Enables Optimized Immunomodulatory Bone Regeneration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203680. [PMID: 36031402 DOI: 10.1002/smll.202203680] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Precise timing of macrophage polarization plays a pivotal role in immunomodulation of tissue regeneration, yet most studies mainly focus on M2 macrophages for their anti-inflammatory and regenerative effects while the essential proinflammatory role of the M1 phenotype on the early inflammation stage is largely underestimated. Herein, a superparamagnetic hydrogel capable of timely controlling macrophage polarization is constructed by grafting superparamagnetic nanoparticles on collagen nanofibers. The magnetic responsive hydrogel network enables efficient polarization of encapsulated macrophage to the M2 phenotype through the podosome/Rho/ROCK mechanical pathway in response to static magnetic field (MF) as needed. Taking advantage of remote accessibility of magnetic field together with the superparamagnetic hydrogels, a temporal engineered M1 to M2 transition course preserving the essential role of M1 at the early stage of tissue healing, as well as enhancing the prohealing effect of M2 at the middle/late stages is established via delayed MF switch. Such precise timing of macrophage polarization matching the regenerative process of injured tissue eventually leads to optimized immunomodulatory bone healing in vivo. Overall, this study offers a remotely time-scheduled approach for macrophage polarization, which enables precise manipulation of inflammation progression during tissue healing.
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Affiliation(s)
- Donghua Huang
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Kaicheng Xu
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Xin Huang
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Nong Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Yuxiao Ye
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Suya Lin
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jiamin Zhang
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jiaqi Shao
- The First Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China
| | - Songfeng Chen
- Department of Orthopedics, The First Affiliated Hospital Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Mingmin Shi
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Xingzhi Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Peng Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Yucheng Xue
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Chengcheng Yu
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Xiaohua Yu
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Zhaoming Ye
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Kui Cheng
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
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9
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Wei Z, Guo S, Wang H, Zhao Y, Yan J, Zhang C, Zhong B. Comparative proteomic analysis identifies differentially expressed proteins and reveals potential mechanisms of traumatic heterotopic ossification progression. J Orthop Translat 2022; 34:42-59. [PMID: 35615641 PMCID: PMC9117278 DOI: 10.1016/j.jot.2022.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 03/10/2022] [Accepted: 04/20/2022] [Indexed: 01/09/2023] Open
Abstract
Background Traumatic Heterotopic Ossification (tHO) is one of complications of elbow fractures to the detriment of patients' rehabilitation, and the severity of tHO corresponds to the size of ectopic bone. It has yet to be elucidated which proteins and pathways underlying the progression of tHO, and biomarkers to predict the severity of tHO at early stage of the disease also need further investigation. Methods In this study, a new rat model with distinct volume of ectopic bone was established first. Then a data-independent acquisition proteomics approach was used to investigate injured site tissues sequentially obtained from these rats (2, 7, 14, and 28 days post-injury). Differentially expressed analysis, functional annotation and co-expression analysis and protein-protein interaction network were performed to explore the pathways and hub proteins in the tHO progression. Clinical samples from a nest case-control study were used to validate the selected proteins for predicting the severity of tHO. Results The Achilles Tenotomy (AT) induced significantly larger sizes of ectopic bone compared to Partial Achilles Tenotomy (PAT) in rat models. A total of 3547 quantifiable proteins were screened for differential expression analysis among the AT, PAT and control groups. The hierarchical clustering and expression pattern analysis revealed more apparent difference in the pathways such as oxidative phosphorylation, mitochondrial function, and sirtuin signaling between AT and PAT group at the early stage (2 dpi) of tHO. The co-expression analysis identified five hub proteins, UBA1, EIF3E, RPL17, RPL27, and RPS28. qPCR assay, immunoblot assay and immunohistochemistry assay verified that these proteins had higher expression level in the tissue samples of clinically relevant HO patients and clinically irrelevant HO patients than HO negative patients. Conclusion The new established animal model and proteome profile could serve as a solid foundation for the comprehensive investigation of the progression of traumatic heterotopic ossification. And the identified 5 proteins (UBA1, EIF3E, RPL17, RPL27, and RPS28) may serve as potential biomarkers to predict the severity of tHO. The translational potential of this article The proteins identified in this study may be the potential biomarkers and therapeutic targets for predicting and treating the tHO at early stage.
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Affiliation(s)
- Zhenyuan Wei
- Department of Orthopedic Surgery, And Shanghai Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Shang Guo
- Department of Orthopedic Surgery, And Shanghai Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Hongwei Wang
- Department of Medicine, the University of Chicago. Chicago, IL 60637, USA
| | - Yang Zhao
- Department of Orthopedic Surgery, And Shanghai Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Jiren Yan
- Department of Orthopedic Surgery, And Shanghai Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Chi Zhang
- Department of Orthopedic Surgery, And Shanghai Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China,Corresponding author.
| | - Biao Zhong
- Department of Orthopedic Surgery, And Shanghai Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China,Corresponding author.
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10
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Cai J, Li C, Li S, Yi J, Wang J, Yao K, Gan X, Shen Y, Yang P, Jing D, Zhao Z. A Quartet Network Analysis Identifying Mechanically Responsive Long Noncoding RNAs in Bone Remodeling. Front Bioeng Biotechnol 2022; 10:780211. [PMID: 35356768 PMCID: PMC8959777 DOI: 10.3389/fbioe.2022.780211] [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: 09/20/2021] [Accepted: 01/20/2022] [Indexed: 12/13/2022] Open
Abstract
Mechanical force, being so ubiquitous that it is often taken for granted and overlooked, is now gaining the spotlight for reams of evidence corroborating their crucial roles in the living body. The bone, particularly, experiences manifold extraneous force like strain and compression, as well as intrinsic cues like fluid shear stress and physical properties of the microenvironment. Though sparkled in diversified background, long noncoding RNAs (lncRNAs) concerning the mechanotransduction process that bone undergoes are not yet detailed in a systematic way. Our principal goal in this research is to highlight the potential lncRNA-focused mechanical signaling systems which may be adapted by bone-related cells for biophysical environment response. Based on credible lists of force-sensitive mRNAs and miRNAs, we constructed a force-responsive competing endogenous RNA network for lncRNA identification. To elucidate the underlying mechanism, we then illustrated the possible crosstalk between lncRNAs and mRNAs as well as transcriptional factors and mapped lncRNAs to known signaling pathways involved in bone remodeling and mechanotransduction. Last, we developed combinative analysis between predicted and established lncRNAs, constructing a pathway–lncRNA network which suggests interactive relationships and new roles of known factors such as H19. In conclusion, our work provided a systematic quartet network analysis, uncovered candidate force-related lncRNAs, and highlighted both the upstream and downstream processes that are possibly involved. A new mode of bioinformatic analysis integrating sequencing data, literature retrieval, and computational algorithm was also introduced. Hopefully, our work would provide a moment of clarity against the multiplicity and complexity of the lncRNA world confronting mechanical input.
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Affiliation(s)
- Jingyi Cai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chaoyuan Li
- Department of Oral Implantology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - Shun Li
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, China
| | - Jianru Yi
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jun Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ke Yao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xinyan Gan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yu Shen
- School of Basic Medical Sciences, Chengdu University, Chengdu, China
| | - Pu Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Dian Jing
- Department of Orthodontics, China Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Dian Jing, ; Zhihe Zhao,
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Dian Jing, ; Zhihe Zhao,
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11
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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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12
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McMullan P, Germain-Lee EL. Aberrant Bone Regulation in Albright Hereditary Osteodystrophy dueto Gnas Inactivation: Mechanisms and Translational Implications. Curr Osteoporos Rep 2022; 20:78-89. [PMID: 35226254 DOI: 10.1007/s11914-022-00719-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/06/2021] [Indexed: 11/03/2022]
Abstract
PURPOSE OF REVIEW This review highlights the impact of Gnas inactivation on both bone remodeling and the development of heterotopic subcutaneous ossifications in Albright hereditary osteodystrophy (AHO). Here we discuss recent advancements in understanding the pathophysiologic mechanisms of the aberrant bone development in AHO as well as potential translational implications. RECENT FINDINGS Gnas inactivation can regulate the differentiation and function of not only osteoblasts but also osteoclasts and osteocytes. Investigations utilizing a mouse model of AHO generated by targeted disruption of Gnas have revealed that bone formation and resorption are differentially affected based upon the parental origin of the Gnas mutation. Data suggest that Gnas inactivation leads to heterotopic bone formation within subcutaneous tissue by changing the connective tissue microenvironment, thereby promoting osteogenic differentiation of tissue-resident mesenchymal progenitors. Observed variations in bone formation and resorption based upon the parental origin of the Gnas mutation warrant future investigations and may have implications in the management and treatment of AHO and related conditions. Additionally, studies of heterotopic bone formation due to Gnas inactivation have identified an essential role of sonic hedgehog signaling, which could have therapeutic implications not only for AHO and related conditions but also for heterotopic bone formation in a wide variety of settings in which aberrant bone formation is a cause of significant morbidity.
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Affiliation(s)
- Patrick McMullan
- Department of Pediatrics, Division of Pediatric Endocrinology & Diabetes, University of Connecticut School of Medicine, 505 Farmington Ave, 2nd floor, Farmington, CT, 06032, USA
- Department of Reconstructive Sciences, Center for Regenerative Medicine and Skeletal Development, University of Connecticut School of Dental Medicine, Farmington, CT, USA
| | - Emily L Germain-Lee
- Department of Pediatrics, Division of Pediatric Endocrinology & Diabetes, University of Connecticut School of Medicine, 505 Farmington Ave, 2nd floor, Farmington, CT, 06032, USA.
- Department of Reconstructive Sciences, Center for Regenerative Medicine and Skeletal Development, University of Connecticut School of Dental Medicine, Farmington, CT, USA.
- Albright Center, Connecticut Children's, Farmington, CT, USA.
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13
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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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14
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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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15
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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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16
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Nokhbatolfoghahaei H, Rad MR, Paknejad Z, Ardeshirylajimi A, Khojasteh A. Identification osteogenic signaling pathways following mechanical stimulation: A systematic review. Curr Stem Cell Res Ther 2021; 17:772-792. [PMID: 34615453 DOI: 10.2174/1574888x16666211006105915] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/17/2021] [Accepted: 07/26/2021] [Indexed: 11/22/2022]
Abstract
INTRODUCTION It has been shown that mechanical forces can induce or promote osteogenic differentiation as well as remodeling of the new created bone tissues. To apply this characteristic in bone tissue engineering, it is important to know which mechanical stimuli through which signaling pathway has a more significant impact on osteogenesis. METHODS In this systematic study, an electronic search was conducted using PubMed and Google Scholar databases. This study has been prepared and organized according to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. Included studies were first categorized according to the in vivo and in vitro studies. RESULTS Six types of mechanical stresses were used in these articles and the most commonly used mechanical force and cell source were tension and bone marrow-derived mesenchymal stem cells (BMMSCs), respectively. These forces were able to trigger twelve signaling pathways in which Wnt pathway was so prominent. CONCLUSION 1) Although specific signaling pathways are induced through specific mechanical forces, Wnt signaling pathways are predominantly activated by almost all types of force/stimulation, 2) All signaling pathways regulate expression of RUNX2, which is known as a master regulator of osteogenesis, 3) In Tension force, the mode of force administration, i.e, continuous or non-continuous tension is more important than the percentage of elongation.
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Affiliation(s)
- Hanieh Nokhbatolfoghahaei
- Dental Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran. Iran
| | - Maryam Rezai Rad
- Dental Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran. Iran
| | - Zahrasadat Paknejad
- Medical nanotechnology and tissue engineering research Center, Shahid Beheshti University of Medical Sciences, Tehran. Iran
| | - Abdolreza Ardeshirylajimi
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran. Iran
| | - Arash Khojasteh
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran. Iran
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17
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Self-Organization Provides Cell Fate Commitment in MSC Sheet Condensed Areas via ROCK-Dependent Mechanism. Biomedicines 2021; 9:biomedicines9091192. [PMID: 34572378 PMCID: PMC8470239 DOI: 10.3390/biomedicines9091192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/30/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022] Open
Abstract
Multipotent mesenchymal stem/stromal cells (MSC) are one of the crucial regulators of regeneration and tissue repair and possess an intrinsic program from self-organization mediated by condensation, migration and self-patterning. The ability to self-organize has been successfully exploited in tissue engineering approaches using cell sheets (CS) and their modifications. In this study, we used CS as a model of human MSC spontaneous self-organization to demonstrate its structural, transcriptomic impact and multipotent stromal cell commitment. We used CS formation to visualize MSC self-organization and evaluated the role of the Rho-GTPase pathway in spontaneous condensation, resulting in a significant anisotropy of the cell density within the construct. Differentiation assays were carried out using conventional protocols, and microdissection and RNA-sequencing were applied to establish putative targets behind the observed phenomena. The differentiation of MSC to bone and cartilage, but not to adipocytes in CS, occurred more effectively than in the monolayer. RNA-sequencing indicated transcriptional shifts involving the activation of the Rho-GTPase pathway and repression of SREBP, which was concordant with the lack of adipogenesis in CS. Eventually, we used an inhibitory analysis to validate our findings and suggested a model where the self-organization of MSC defined their commitment and cell fate via ROCK1/2 and SREBP as major effectors under the putative switching control of AMP kinase.
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18
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Wang H, De Cunto CL, Pignolo RJ, Kaplan FS. Spatial patterns of heterotopic ossification in fibrodysplasia ossificans progressiva correlate with anatomic temperature gradients. Bone 2021; 149:115978. [PMID: 33915334 DOI: 10.1016/j.bone.2021.115978] [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: 12/23/2020] [Revised: 03/23/2021] [Accepted: 04/21/2021] [Indexed: 09/30/2022]
Abstract
Progressive heterotopic ossification (HO) is a hallmark of fibrodysplasia ossificans progressiva (FOP); however, this tissue transformation is not random. Rather, we noticed that HO in FOP progresses in well-defined but inexplicable spatial and temporal patterns that correlate precisely with infrared thermographs of the human body. FOP is caused by gain-of-function mutations in Activin A receptor type I (ACVR1/ALK2), a bone morphogenetic protein (BMP) type I receptor kinase. As with all enzymes, the activity of ACVR1 is temperature-dependent. We hypothesized that connective tissue progenitor cells that express the common heterozygous ACVR1R206H mutation (FOP CTPCs) exhibit a dysregulated temperature response compared to control CTPCs and that the temperature of FOP CTPCs that initiate and sustain HO at various anatomic sites determines, in part, the anatomic distribution of HO in FOP. We compared BMP pathway signaling at a range of physiologic temperatures in primary CTPCs isolated from FOP patients (n = 3) and unaffected controls (n = 3) and found that BMP pathway signaling and resultant chondrogenesis were amplified in FOP CTPCs compared to control CTPCs (p < 0.05). We conclude that the anatomic distribution of HO in FOP may be due, in part, to a dyregulated temperature response in FOP CTPCs that reflect anatomic location. While the association of temperature gradients with spatial patterns of HO in FOP does not demonstrate causality, our findings provide a paradigm for the physiologic basis of the anatomic distribution of HO in FOP and unveil a novel therapeutic target that might be exploited for this disabling condition.
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Affiliation(s)
- Haitao Wang
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Mayo Clinic, Rochester, MN 55905, USA; Department of Medicine, Mayo Clinic College of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Carmen L De Cunto
- Department of Pediatrics, Pediatric Rheumatology Section, Hospital Italiano de Buenos Aires, Gascón 450, 1181 Ciudad Autónoma de Buenos Aires, Argentina
| | - Robert J Pignolo
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Mayo Clinic, Rochester, MN 55905, USA; Department of Medicine, Mayo Clinic College of Medicine, Mayo Clinic, Rochester, MN, 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; Department of the Center for Research in FOP & Related Disorders, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA.
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19
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Monteiro DA, Dole NS, Campos JL, Kaya S, Schurman CA, Belair CD, Alliston T. Fluid shear stress generates a unique signaling response by activating multiple TGFβ family type I receptors in osteocytes. FASEB J 2021; 35:e21263. [PMID: 33570811 PMCID: PMC7888383 DOI: 10.1096/fj.202001998r] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/11/2020] [Accepted: 11/25/2020] [Indexed: 12/18/2022]
Abstract
Bone is a dynamic tissue that constantly adapts to changing mechanical demands. The transforming growth factor beta (TGFβ) signaling pathway plays several important roles in maintaining skeletal homeostasis by both coupling the bone‐forming and bone‐resorbing activities of osteoblasts and osteoclasts and by playing a causal role in the anabolic response of bone to applied loads. However, the extent to which the TGFβ signaling pathway in osteocytes is directly regulated by fluid shear stress (FSS) is unknown, despite work suggesting that fluid flow along canaliculi is a dominant physical cue sensed by osteocytes following bone compression. To investigate the effects of FSS on TGFβ signaling in osteocytes, we stimulated osteocytic OCY454 cells cultured within a microfluidic platform with FSS. We find that FSS rapidly upregulates Smad2/3 phosphorylation and TGFβ target gene expression, even in the absence of added TGFβ. Indeed, relative to treatment with TGFβ, FSS induced a larger increase in levels of pSmad2/3 and Serpine1 that persisted even in the presence of a TGFβ receptor type I inhibitor. Our results show that FSS stimulation rapidly induces phosphorylation of multiple TGFβ family R‐Smads by stimulating multimerization and concurrently activating several TGFβ and BMP type I receptors, in a manner that requires the activity of the corresponding ligand. While the individual roles of the TGFβ and BMP signaling pathways in bone mechanotransduction remain unclear, these results implicate that FSS activates both pathways to generate a downstream response that differs from that achieved by either ligand alone.
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Affiliation(s)
- David A Monteiro
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, USA.,UC Berkeley-UCSF Graduate Program in Bioengineering, San Francisco, CA, USA
| | - Neha S Dole
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, USA
| | - J Luke Campos
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, USA
| | - Serra Kaya
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, USA
| | - Charles A Schurman
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, USA.,UC Berkeley-UCSF Graduate Program in Bioengineering, San Francisco, CA, USA
| | - Cassandra D Belair
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA, USA.,Department of Urology, University of California, San Francisco, CA, USA
| | - Tamara Alliston
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, USA.,UC Berkeley-UCSF Graduate Program in Bioengineering, San Francisco, CA, USA.,The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA, USA
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20
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Girard D, Torossian F, Oberlin E, Alexander KA, Gueguen J, Tseng HW, Genêt F, Lataillade JJ, Salga M, Levesque JP, Le Bousse-Kerdilès MC, Banzet S. Neurogenic Heterotopic Ossifications Recapitulate Hematopoietic Stem Cell Niche Development Within an Adult Osteogenic Muscle Environment. Front Cell Dev Biol 2021; 9:611842. [PMID: 33748104 PMCID: PMC7973025 DOI: 10.3389/fcell.2021.611842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/17/2021] [Indexed: 12/11/2022] Open
Abstract
Hematopoiesis and bone interact in various developmental and pathological processes. Neurogenic heterotopic ossifications (NHO) are the formation of ectopic hematopoietic bones in peri-articular muscles that develop following severe lesions of the central nervous system such as traumatic cerebral or spinal injuries or strokes. This review will focus on the hematopoietic facet of NHO. The characterization of NHO demonstrates the presence of hematopoietic marrow in which quiescent hematopoietic stem cells (HSC) are maintained by a functional stromal microenvironment, thus documenting that NHOs are neo-formed ectopic HSC niches. Similarly to adult bone marrow, the NHO permissive environment supports HSC maintenance, proliferation and differentiation through bidirectional signaling with mesenchymal stromal cells and endothelial cells, involving cell adhesion molecules, membrane-bound growth factors, hormones, and secreted matrix proteins. The participation of the nervous system, macrophages and inflammatory cytokines including oncostatin M and transforming growth factor (TGF)-β in this process, reveals how neural circuitry fine-tunes the inflammatory response to generate hematopoietic bones in injured muscles. The localization of NHOs in the peri-articular muscle environment also suggests a role of muscle mesenchymal cells and bone metabolism in development of hematopoiesis in adults. Little is known about the establishment of bone marrow niches and the regulation of HSC cycling during fetal development. Similarities between NHO and development of fetal bones make NHOs an interesting model to study the establishment of bone marrow hematopoiesis during development. Conversely, identification of stage-specific factors that specify HSC developmental state during fetal bone development will give more mechanistic insights into NHO.
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Affiliation(s)
- Dorothée Girard
- INSERM UMRS-MD 1197, Institut de Recherche Biomédicale des Armées (IRBA), Clamart, France
| | - Frédéric Torossian
- INSERM UMRS-MD 1197, Université Paris-Saclay, Hôpital Paul Brousse, Villejuif, France
| | - Estelle Oberlin
- INSERM UMRS-MD 1197, Université Paris-Saclay, Hôpital Paul Brousse, Villejuif, France
| | - Kylie A Alexander
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | - Jules Gueguen
- INSERM UMRS-MD 1197, Institut de Recherche Biomédicale des Armées (IRBA), Clamart, France
| | - Hsu-Wen Tseng
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | - François Genêt
- INSERM U1179, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Versailles, France
| | | | - Marjorie Salga
- INSERM U1179, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Versailles, France
| | - Jean-Pierre Levesque
- Mater Research Institute-The University of Queensland, Woolloongabba, QLD, Australia
| | | | - Sébastien Banzet
- INSERM UMRS-MD 1197, Institut de Recherche Biomédicale des Armées (IRBA), Clamart, France
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21
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Haseeb A, Kc R, Angelozzi M, de Charleroy C, Rux D, Tower RJ, Yao L, Pellegrino da Silva R, Pacifici M, Qin L, Lefebvre V. SOX9 keeps growth plates and articular cartilage healthy by inhibiting chondrocyte dedifferentiation/osteoblastic redifferentiation. Proc Natl Acad Sci U S A 2021; 118:e2019152118. [PMID: 33597301 PMCID: PMC7923381 DOI: 10.1073/pnas.2019152118] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cartilage is essential throughout vertebrate life. It starts developing in embryos when osteochondroprogenitor cells commit to chondrogenesis, activate a pancartilaginous program to form cartilaginous skeletal primordia, and also embrace a growth-plate program to drive skeletal growth or an articular program to build permanent joint cartilage. Various forms of cartilage malformation and degeneration diseases afflict humans, but underlying mechanisms are still incompletely understood and treatment options suboptimal. The transcription factor SOX9 is required for embryonic chondrogenesis, but its postnatal roles remain unclear, despite evidence that it is down-regulated in osteoarthritis and heterozygously inactivated in campomelic dysplasia, a severe skeletal dysplasia characterized postnatally by small stature and kyphoscoliosis. Using conditional knockout mice and high-throughput sequencing assays, we show here that SOX9 is required postnatally to prevent growth-plate closure and preosteoarthritic deterioration of articular cartilage. Its deficiency prompts growth-plate chondrocytes at all stages to swiftly reach a terminal/dedifferentiated stage marked by expression of chondrocyte-specific (Mgp) and progenitor-specific (Nt5e and Sox4) genes. Up-regulation of osteogenic genes (Runx2, Sp7, and Postn) and overt osteoblastogenesis quickly ensue. SOX9 deficiency does not perturb the articular program, except in load-bearing regions, where it also provokes chondrocyte-to-osteoblast conversion via a progenitor stage. Pathway analyses support roles for SOX9 in controlling TGFβ and BMP signaling activities during this cell lineage transition. Altogether, these findings deepen our current understanding of the cellular and molecular mechanisms that specifically ensure lifelong growth-plate and articular cartilage vigor by identifying osteogenic plasticity of growth-plate and articular chondrocytes and a SOX9-countered chondrocyte dedifferentiation/osteoblast redifferentiation process.
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Affiliation(s)
- Abdul Haseeb
- Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Ranjan Kc
- Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Marco Angelozzi
- Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Charles de Charleroy
- Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Danielle Rux
- Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Robert J Tower
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA 19104
| | - Lutian Yao
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA 19104
| | | | - Maurizio Pacifici
- Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Ling Qin
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA 19104
| | - Véronique Lefebvre
- Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA 19104;
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22
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Genomic Context and Mechanisms of the ACVR1 Mutation in Fibrodysplasia Ossificans Progressiva. Biomedicines 2021; 9:biomedicines9020154. [PMID: 33562470 PMCID: PMC7914827 DOI: 10.3390/biomedicines9020154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 11/20/2022] Open
Abstract
Basic research in Fibrodysplasia Ossificans Progressiva (FOP) was carried out in the various fields involved in the disease pathophysiology and was important for designing therapeutic approaches, some of which were already developed as ongoing or planned clinical trials. Genetic research was fundamental in identifying the FOP causative mutation, and the astonishing progress in technologies for genomic analysis, coupled to related computational methods, now make possible further research in this field. We present here a review of molecular and cellular factors which could explain why a single mutation, the R206H in the ACVR1 gene, is absolutely prevalent in FOP patients. We also address the mechanisms by which FOP expressivity could be modulated by cis-acting variants in the ACVR1 genomic region in human chromosome 2q. Finally, we also discuss the general issue of genetic modifiers in FOP.
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23
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Brewer N, Fong JT, Zhang D, Ramaswamy G, Shore EM. Gnas Inactivation Alters Subcutaneous Tissues in Progression to Heterotopic Ossification. Front Genet 2021; 12:633206. [PMID: 33574833 PMCID: PMC7870717 DOI: 10.3389/fgene.2021.633206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/04/2021] [Indexed: 11/13/2022] Open
Abstract
Heterotopic ossification (HO), the formation of bone outside of the skeleton, occurs in response to severe trauma and in rare genetic diseases such as progressive osseous heteroplasia (POH). In POH, which is caused by inactivation of GNAS, a gene that encodes the alpha stimulatory subunit of G proteins (Gsα), HO typically initiates within subcutaneous soft tissues before progressing to deeper connective tissues. To mimic POH, we used conditional Gnas-null mice which form HO in subcutaneous tissues upon Gnas inactivation. In response to Gnas inactivation, we determined that prior to detection of heterotopic bone, dermal adipose tissue changed dramatically, with progressively decreased adipose tissue volume and increased density of extracellular matrix over time. Upon depletion of the adipose tissue, heterotopic bone progressively formed in those locations. To investigate the potential relevance of the tissue microenvironment for HO formation, we implanted Gnas-null or control mesenchymal progenitor cells into Gnas-null or control host subcutaneous tissues. We found that mutant cells in a Gnas-null tissue environment induced a robust HO response while little/no HO was detected in control hosts. Additionally, a Gnas-null tissue environment appeared to support the recruitment of control cells to heterotopic bone, although control cell implants were associated with less HO formation compared to mutant cells. Our data support that Gnas inactivation alters the tissue microenvironment to influence mutant and wild-type progenitor cells to contribute to HO formation.
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Affiliation(s)
- Niambi Brewer
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Center for Research in FOP and Related Disorders, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - John T Fong
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Center for Research in FOP and Related Disorders, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Deyu Zhang
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Center for Research in FOP and Related Disorders, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Girish Ramaswamy
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Center for Research in FOP and Related Disorders, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Eileen M Shore
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Center for Research in FOP and Related Disorders, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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24
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Migliorini E, Guevara-Garcia A, Albiges-Rizo C, Picart C. Learning from BMPs and their biophysical extracellular matrix microenvironment for biomaterial design. Bone 2020; 141:115540. [PMID: 32730925 PMCID: PMC7614069 DOI: 10.1016/j.bone.2020.115540] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 01/19/2023]
Abstract
It is nowadays well-accepted that the extracellular matrix (ECM) is not a simple reservoir for growth factors but is an organization center of their biological activity. In this review, we focus on the ability of the ECM to regulate the biological activity of BMPs. In particular, we survey the role of the ECM components, notably the glycosaminoglycans and fibrillary ECM proteins, which can be promoters or repressors of the biological activities mediated by the BMPs. We examine how a process called mechano-transduction induced by the ECM can affect BMP signaling, including BMP internalization by the cells. We also focus on the spatio-temporal regulation of the BMPs, including their release from the ECM, which enables to modulate their spatial localization as well as their local concentration. We highlight how biomaterials can recapitulate some aspects of the BMPs/ECM interactions and help to answer fundamental questions to reveal previously unknown molecular mechanisms. Finally, the design of new biomaterials inspired by the ECM to better present BMPs is discussed, and their use for a more efficient bone regeneration in vivo is also highlighted.
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Affiliation(s)
- Elisa Migliorini
- CNRS, Grenoble Institute of Technology, LMGP, UMR 5628, 3 Parvis Louis Néel, 38016 Grenoble, France; CEA, Institute of Interdisciplinary Research of Grenoble (IRIG), Biomimetism and Regenerative Medicine Lab, ERL 5000, Université Grenoble-Alpes (UGA)/CEA/CNRS, Grenoble France.
| | - Amaris Guevara-Garcia
- CNRS, Grenoble Institute of Technology, LMGP, UMR 5628, 3 Parvis Louis Néel, 38016 Grenoble, France; CEA, Institute of Interdisciplinary Research of Grenoble (IRIG), Biomimetism and Regenerative Medicine Lab, ERL 5000, Université Grenoble-Alpes (UGA)/CEA/CNRS, Grenoble France; Université Grenoble Alpes, Institut for Advances Biosciences, Institute Albert Bonniot, INSERM U1209, CNRS 5309, La Tronche, France
| | - Corinne Albiges-Rizo
- Université Grenoble Alpes, Institut for Advances Biosciences, Institute Albert Bonniot, INSERM U1209, CNRS 5309, La Tronche, France
| | - Catherine Picart
- CNRS, Grenoble Institute of Technology, LMGP, UMR 5628, 3 Parvis Louis Néel, 38016 Grenoble, France; CEA, Institute of Interdisciplinary Research of Grenoble (IRIG), Biomimetism and Regenerative Medicine Lab, ERL 5000, Université Grenoble-Alpes (UGA)/CEA/CNRS, Grenoble France.
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25
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Dong T, Sun X, Jin H. Role of YAP1 gene in proliferation, osteogenic differentiation, and apoptosis of human periodontal ligament stem cells induced by TNF-α. J Periodontol 2020; 92:1192-1200. [PMID: 32997793 DOI: 10.1002/jper.20-0176] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/23/2020] [Accepted: 07/02/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Periodontitis is a chronic inflammatory disease that occurs in periodontal tissues and can cause tooth loosening and loss in severe cases. As the main effector of downstream of Hippo signaling pathway, yes-related protein 1 (YAP1) plays an important role in cell proliferation and differentiation. However, the role of YAP1 in periodontitis has not been reported. METHODS Cell activity was detected by Cell Counting Kit-8 (CCK-8). YAP1 was overexpressed by cell transfection, and then RT-qPCR and western blot were used to detect the expression of YAP1. The cell proliferation was determined by clone formation assay, and the expression of proliferation-related proteins was determined by western blot. The cell differentiation was detected by ELISA kit of alkaline phosphatase activity (ALP) and alizarin red staining. Finally, western blot was used to detect the expression of differentiation-related protein and Hippo signaling pathway-related proteins. Apoptosis was detected by flow cytometry. RESULTS With the increase of concentration induced by TNF-α, the cell survival rate of human periodontal ligament stem cells (HPDLSCs) decreased significantly. After the overexpression of YAP1, cell proliferation and proliferation-related protein expression increased. Overexpression of YAP1 can improve the differentiation and the formation of osteoblasts of HPDLSCs induced by TNF-α. The expression of Hippo signaling pathway-related proteins transcriptional coactivators with PDZ binding domains (TAZ), TEA domain family member (TRED) increased and proliferation-related protein P27 decreased, whereas there was no significant change in the expression of MST1. CONCLUSION TNF-α can inhibit proliferation and osteogenic differentiation of HPDLSCs, which can be ameliorated by the YAP1 gene through the Hippo signaling pathway. Our paper suggested that YAP1 may be a potential therapeutic target for periodontitis.
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Affiliation(s)
- Tao Dong
- Department of stomatology, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Xuemin Sun
- Department of stomatology, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - He Jin
- Department of stomatology, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
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26
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Kaplan FS, Al Mukaddam M, Stanley A, Towler OW, Shore EM. Fibrodysplasia ossificans progressiva (FOP): A disorder of osteochondrogenesis. Bone 2020; 140:115539. [PMID: 32730934 PMCID: PMC7502483 DOI: 10.1016/j.bone.2020.115539] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 07/01/2020] [Accepted: 07/04/2020] [Indexed: 10/23/2022]
Abstract
Fibrodysplasia ossificans progressiva (FOP) is an ultra-rare genetic disorder of extraskeletal bone formation, but could appropriately be viewed as a seminal disorder of osteochondrogenesis. Many, if not most, of the musculoskeletal features of FOP are related to dysregulated chondrogenesis including abnormal articular cartilage formation, abnormal diarthrodial joint specification, growth plate dysplasia, osteochondroma formation, heterotopic endochondral ossification (HEO), and precocious arthropathy. In FOP, causative activating mutations of Activin receptor A type I (ACVR1), a bone morphogenetic protein (BMP) type I receptor, are responsible for the osteochondrodysplasia that impacts developmental phenotypes as well as postnatal features of this illustrative disorder. Here, we highlight the myriad developmental and postnatal effects on osteochondrogenesis that emanate directly from mutant ACVR1 and dysregulated bone morphogenetic protein (BMP) signaling in FOP.
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Affiliation(s)
- 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 & Related Disorders, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Mona Al Mukaddam
- 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 & Related Disorders, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Alexandra Stanley
- Department of Orthopaedic Surgery, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA; The Center for Research in FOP & Related Disorders, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - O Will Towler
- Department of Orthopaedic Surgery, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA; The Center for Research in FOP & Related Disorders, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Eileen M Shore
- Department of Orthopaedic Surgery, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Genetics, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA; The Center for Research in FOP & Related Disorders, The Perelman School of Medicine of The University of Pennsylvania, Philadelphia, PA 19104, USA.
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Porazinski S, Parkin A, Pajic M. Rho-ROCK Signaling in Normal Physiology and as a Key Player in Shaping the Tumor Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1223:99-127. [PMID: 32030687 DOI: 10.1007/978-3-030-35582-1_6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The Rho-ROCK signaling network has a range of specialized functions of key biological importance, including control of essential developmental processes such as morphogenesis and physiological processes including homeostasis, immunity, and wound healing. Deregulation of Rho-ROCK signaling actively contributes to multiple pathological conditions, and plays a major role in cancer development and progression. This dynamic network is critical in modulating the intricate communication between tumor cells, surrounding diverse stromal cells and the matrix, shaping the ever-changing microenvironment of aggressive tumors. In this chapter, we overview the complex regulation of the Rho-ROCK signaling axis, its role in health and disease, and analyze progress made with key approaches targeting the Rho-ROCK pathway for therapeutic benefit. Finally, we conclude by outlining likely future trends and key questions in the field of Rho-ROCK research, in particular surrounding Rho-ROCK signaling within the tumor microenvironment.
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Affiliation(s)
- Sean Porazinski
- Personalised Cancer Therapeutics Lab, The Kinghorn Cancer Centre, Sydney, NSW, Australia.,Faculty of Medicine, St Vincent's Clinical School, University of NSW, Sydney, NSW, Australia
| | - Ashleigh Parkin
- Personalised Cancer Therapeutics Lab, The Kinghorn Cancer Centre, Sydney, NSW, Australia
| | - Marina Pajic
- Personalised Cancer Therapeutics Lab, The Kinghorn Cancer Centre, Sydney, NSW, Australia. .,Faculty of Medicine, St Vincent's Clinical School, University of NSW, Sydney, NSW, Australia.
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28
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Yu H, Yu W, Liu Y, Yuan X, Yuan R, Guo Q. Expression of HIF‑1α in cycling stretch‑induced osteogenic differentiation of bone mesenchymal stem cells. Mol Med Rep 2019; 20:4489-4498. [PMID: 31702030 PMCID: PMC6797986 DOI: 10.3892/mmr.2019.10715] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 07/30/2019] [Indexed: 02/06/2023] Open
Abstract
During orthodontic treatment, mechanical force is applied to the teeth, and following a series of complex metabolism changes, the position of the teeth in the alveolar bone change. This process is closely associated with primitive bone mesenchymal stem cells (BMSCs), which may differentiate into osteoblasts precursor cell. A hypoxic microenvironment may be caused by orthodontic mechanical forces between the alveolar bone and the root. Hypoxia-inducible factor 1α (HIF-1α) is a specific receptor that adapts to a hypoxic environment. The present study was designed to investigate whether HIF-1α was involved in the osteoblastic differentiation of BMSCs induced by cyclic tensile stress. During this process, HIF-1α mRNA and protein expression were detected using a reverse transcription-quantitative polymerase chain reaction and western blotting. It was revealed that alkaline phosphatase activity increased in a time-dependent manner in three different stretching strength groups, which indicates that cyclic stretch promotes the osteogenic differentiation of BMSCs. The optimal force stage of osteogenesis was an unexpected discovery, which will provide theoretical guidance for selecting the most suitable orthodontic force for tooth movement in clinical orthodontic treatment. Most importantly, all experiments revealed that HIF-1α mRNA and protein were significantly increased following stretching treatment in BMSCs. It was therefore concluded that HIF-1α may be involved in BMSCs modulating osteogenic metabolism during exposure to cyclic stretch and a hypoxic microenvironment, which may prove useful for the reconstruction of a jaw during orthodontic treatment.
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Affiliation(s)
- Haibo Yu
- Department of Stomatology, The Affiliated Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong 266011, P.R. China
| | - Wenyi Yu
- Department of Stomatology, The Affiliated Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong 266011, P.R. China
| | - Ying Liu
- Department of Stomatology, The Affiliated Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong 266011, P.R. China
| | - Xiao Yuan
- Department of Orthodontics II, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266011, P.R. China
| | - Rongtao Yuan
- Department of Stomatology, The Affiliated Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong 266011, P.R. China
| | - Qingyuan Guo
- Department of Stomatology, The Affiliated Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong 266011, P.R. China
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