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Zhang X, Wang G, Wang W, Ran C, Piao F, Ma Z, Zhang Z, Zheng G, Cao F, Xie H, Cui D, Samuel Okoye C, Yu X, Wang Z, Zhao D. Bone marrow mesenchymal stem cells paracrine TGF-β1 to mediate the biological activity of osteoblasts in bone repair. Cytokine 2023; 164:156139. [PMID: 36738525 DOI: 10.1016/j.cyto.2023.156139] [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: 11/08/2022] [Revised: 01/19/2023] [Accepted: 01/23/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND Bone marrow mesenchymal stem cells (BMSCs) are an important source of seed cells for regenerative medicine and tissue engineering therapy. BMSCs have multiple differentiation potentials and can release paracrine factors to facilitate tissue repair. Although the role of the osteogenic differentiation of BMSCs has been fully confirmed, the function and mechanism of BMSC paracrine factors in bone repair are still largely unclear. This study aimed to determine the roles of transforming growth factor beta-1 (TGF-β1) produced by BMSCs in bone tissue repair. METHODS To confirm our hypothesis, we used a Transwell system to coculture hBMSCs and human osteoblast-like cells without contact, which could not only avoid the interference of the osteogenic differentiation of hBMSCs but also establish the cell-cell relationship between hBMSCs and human osteoblast-like cells and provide stable paracrine substances. In the transwell coculture system, alkaline phosphatase activity, mineralized nodule formation, cell migration and chemotaxis analysis assays were conducted. RESULTS Osteogenesis, migration and chemotaxis of osteoblast-like cells were regulated by BMSCs in a paracrine manner via the upregulation of osteogenic and migration-associated genes. A TGF-β receptor I inhibitor (LY3200882) significantly antagonized BMSC-induced biological activity and related gene expression in osteoblast-like cells. Interestingly, coculture with osteoblast-like cells significantly increased the production of TGF-β1 by BMSCs, and there was potential intercellular communication between BMSCs and osteoblast-like cells. CONCLUSIONS Our findings provide evidence that the biological mechanism of BMSC-produced TGF-β1 promotes bone regeneration and repair, providing a theoretical basis and new directions for the application of BMSC transplantation in the treatment of osteonecrosis and bone injury.
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Affiliation(s)
- Xiuzhi Zhang
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Guangkuo Wang
- Department of Orthopaedics, Huaihe Hospital of Henan University, Kaifeng, Henan 475000, China
| | - Weidan Wang
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China.
| | - Chunxiao Ran
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Fengyuan Piao
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Zhijie Ma
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Zhaodong Zhang
- Department of Orthopaedics, Huaihe Hospital of Henan University, Kaifeng, Henan 475000, China
| | - Guoshuang Zheng
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Fang Cao
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Hui Xie
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Daping Cui
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Chukwuemeka Samuel Okoye
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Xiaoming Yu
- School of Material Science and Engineering, Shenyang Ligong University, Shenyang 110159, China
| | - Ziming Wang
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Dewei Zhao
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China.
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Takeshita N, Takano-Yamamoto T. Analysis of Chemotactic Property of CCN2/CTGF in Intramembranous Osteogenesis. Methods Mol Biol 2023; 2582:237-253. [PMID: 36370354 DOI: 10.1007/978-1-0716-2744-0_16] [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] [Indexed: 06/16/2023]
Abstract
Chemotaxis is a directed migration of cells in response to a gradient of extracellular molecules called chemoattractants. Development, growth, remodeling, and fracture healing of bones are advanced through intramembranous osteogenesis. Chemotaxis of preosteoblasts toward future bone formation sites observed in the early stage of intramembranous osteogenesis is a critical cellular process for normal bone formation. However, molecular biological mechanisms of the chemotaxis of preosteoblasts are not fully understood. We have recently clarified, for the first time, the critical role of the cellular communication network factor 2 (CCN2)/connective tissue growth factor (CTGF)-integrin α5-Ras axis for chemotaxis of preosteoblasts during new bone formation through intramembranous osteogenesis. In this chapter, we describe in detail the procedures of the in vivo and in vitro assays to investigate the chemotactic property of CCN2/CTGF and its underlying molecular biological mechanisms during intramembranous osteogenesis.
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Affiliation(s)
- Nobuo Takeshita
- Section of Orthodontics and Dentofacial Orthopedics, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan
| | - Teruko Takano-Yamamoto
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan.
- Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University, Sapporo, Hokkaido, Japan.
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Roth DM, Souter K, Graf D. Craniofacial sutures: Signaling centres integrating mechanosensation, cell signaling, and cell differentiation. Eur J Cell Biol 2022; 101:151258. [PMID: 35908436 DOI: 10.1016/j.ejcb.2022.151258] [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: 02/07/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 11/03/2022] Open
Abstract
Cranial sutures are dynamic structures in which stem cell biology, bone formation, and mechanical forces interface, influencing the shape of the skull throughout development and beyond. Over the past decade, there has been significant progress in understanding mesenchymal stromal cell (MSC) differentiation in the context of suture development and genetic control of suture pathologies, such as craniosynostosis. More recently, the mechanosensory function of sutures and the influence of mechanical signals on craniofacial development have come to the forefront. There is currently a gap in understanding of how mechanical signals integrate with MSC differentiation and ossification to ensure appropriate bone development and mediate postnatal growth surrounding sutures. In this review, we discuss the role of mechanosensation in the context of cranial sutures, and how mechanical stimuli are converted to biochemical signals influencing bone growth, suture patency, and fusion through mediation of cell differentiation. We integrate key knowledge from other paradigms where mechanosensation forms a critical component, such as bone remodeling and orthodontic tooth movement. The current state of the field regarding genetic, cellular, and physiological mechanisms of mechanotransduction will be contextualized within suture biology.
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Affiliation(s)
- Daniela Marta Roth
- School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
| | - Katherine Souter
- School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
| | - Daniel Graf
- School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada; Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
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PRDX2 Knockdown Inhibits Extracellular Matrix Synthesis of Chondrocytes by Inhibiting Wnt5a/YAP1/CTGF and Activating IL-6/JAK2/STAT3 Pathways in Deer Antler. Int J Mol Sci 2022; 23:ijms23095232. [PMID: 35563622 PMCID: PMC9103832 DOI: 10.3390/ijms23095232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 02/05/2023] Open
Abstract
Although peroxiredoxin 2 (PRDX2) plays a vital role in relieving oxidative stress, its physiological function in cartilage development remains almost unknown. In this study, we found that the expression of PRDX2 significantly increased in the chondrocytes compared with pre-chondrocytes. PRDX2 knockdown significantly decreased the expression of extracellular matrix (ECM) protein (Col2a and Aggrecan), which led to blocked cartilage formation. Moreover, PRDX2 knockdown also inhibited the expression of connective tissue growth factor (CTGF). CTGF is an important growth factor that regulates synthesis of ECM proteins. We explored the possible regulatory mechanism by which PRDX2 regulated the expression of CTGF. Our results demonstrated that PRDX2 knockdown downregulated the expression of CTGF by inhibiting Wnt5a/Yes-associated protein 1 (YAP1) pathway. In addition, PRDX2 knockdown promoted the expression of interleukin 6 (IL-6), indicating PRDX2 expression had an anti-inflammatory function during antler growth. Mechanistically, PRDX2 knockdown promoted cartilage matrix degradation by activating the IL-6-mediated Janus Kinase 2/Signal Transducer and Activator of Transcription 3 (JAK2/STAT3) signaling pathway. These results reveal that PRDX2 is a potential regulator that promotes cartilage extracellular matrix synthesis.
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Lin S, Wu J, Chen B, Li S, Huang H. Identification of a Potential MiRNA-mRNA Regulatory Network for Osteoporosis by Using Bioinformatics Methods: A Retrospective Study Based on the Gene Expression Omnibus Database. Front Endocrinol (Lausanne) 2022; 13:844218. [PMID: 35620387 PMCID: PMC9128237 DOI: 10.3389/fendo.2022.844218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 04/04/2022] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION As a systemic skeletal dysfunction, osteoporosis (OP) is characterized by low bone mass, impairment of bone microstructure, and a high global morbidity rate. There is increasing evidence that microRNAs (miRNAs) are associated with the pathogenesis of OP. Weighted gene co-expression network analysis (WGCNA) is a systematic method for identifying clinically relevant genes involved in disease pathogenesis. However, the study of the miRNA-messenger RNA (mRNA) regulatory network in combination with WGCNA in OP is still lacking. METHODS The GSE93883 and GSE7158 microarray datasets were downloaded from the Gene Expression Omnibus (GEO) database. Differentially expressed miRNAs (DE-miRNAs) and differentially expressed genes (DEGs) were analyzed with the limma package. OP-related miRNAs from the most clinically relevant module were identified by the WGCNA method. The overlap of DE-miRNAs and OP-related miRNAs was identified as OP-related DE-miRNAs. Both upstream transcription factors and downstream targets of OP-related DE-miRNAs were predicted by FunRich. An intersection of predicted target genes and DEGs was confirmed as downstream target genes of OP-related DE-miRNAs. With the use of clusterProfiler in R, Gene Ontology (GO) annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment were performed on target genes. Finally, both the protein-protein interaction (PPI) network and miRNA-mRNA network were constructed and analyzed. RESULTS A total of 79 OP-related DE-miRNAs were obtained, most of which were predicted to be regulated by specificity protein 1 (SP1). Subsequently, 197 downstream target genes were screened out. The target genes were enriched in multiple pathways, including signaling pathways closely related to the onset of OP, such as Ras, PI3K-Akt, and ErbB signaling pathways. Through the construction of the OP-related miRNA-mRNA regulatory network, a hub network that may play a prominent role in the formation of OP was documented. CONCLUSION By using WGCNA, we constructed a potential OP-related miRNA-mRNA regulatory network, offering a novel perspective on miRNA regulatory mechanisms in OP.
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Affiliation(s)
- Shi Lin
- The Third Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangdong, China
| | - Jianjun Wu
- The Third Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangdong, China
| | - Baixing Chen
- Department of Development and Regeneration, KU Leuven, University of Leuven, Leuven, Belgium
| | - Shaoshuo Li
- Laboratory of New Techniques of Restoration and Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Jiangsu, China
| | - Hongxing Huang
- Department of Orthopaedics, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong, China
- *Correspondence: Hongxing Huang,
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Fowlkes JL, Thrailkill KM, Bunn RC. RASopathies: The musculoskeletal consequences and their etiology and pathogenesis. Bone 2021; 152:116060. [PMID: 34144233 PMCID: PMC8316423 DOI: 10.1016/j.bone.2021.116060] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 01/07/2023]
Abstract
The RASopathies comprise an ever-growing number of clinical syndromes resulting from germline mutations in components of the RAS/MAPK signaling pathway. While multiple organs and tissues may be affected by these mutations, this review will focus on how these mutations specifically impact the musculoskeletal system. Herein, we review the genetics and musculoskeletal phenotypes of these syndromes in humans. We discuss how mutations in the RASopathy syndromes have been studied in translational mouse models. Finally, we discuss how signaling molecules within the RAS/MAPK pathway are involved in normal and abnormal bone biology in the context of osteoblasts, osteoclasts and chondrocytes.
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Affiliation(s)
- John L Fowlkes
- University of Kentucky Barnstable Brown Diabetes Center, Department of Pediatrics, University of Kentucky College of Medicine, Lexington, KY 40536, United States of America.
| | - Kathryn M Thrailkill
- University of Kentucky Barnstable Brown Diabetes Center, Department of Pediatrics, University of Kentucky College of Medicine, Lexington, KY 40536, United States of America
| | - R Clay Bunn
- University of Kentucky Barnstable Brown Diabetes Center, Department of Pediatrics, University of Kentucky College of Medicine, Lexington, KY 40536, United States of America
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