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Wang S, Yang B, Mu H, Dong W, Yang B, Wang X, Yu W, Dong Z, Wang J. PTX3 promotes cementum formation and cementoblast differentiation via HA/ITGB1/FAK/YAP1 signaling pathway. Bone 2024; 187:117199. [PMID: 38992453 DOI: 10.1016/j.bone.2024.117199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/05/2024] [Accepted: 07/07/2024] [Indexed: 07/13/2024]
Abstract
Cementum is a vital component of periodontium, yet its regeneration remains a challenge. Pentraxin 3 (PTX3) is a multifunctional glycoprotein involved in extracellular matrix remodeling and bone metabolism regulation. However, the role of PTX3 in cementum formation and cementoblast differentiation has not been elucidated. In this study, we initially observed an increase in PTX3 expression during cementum formation and cementoblast differentiation. Then, overexpression of PTX3 significantly enhanced the differentiation ability of cementoblasts. While conversely, PTX3 knockdown exerted an inhibitory effect. Moreover, in Ptx3-deficient mice, we found that cementum formation was hampered. Furthermore, we confirmed the presence of PTX3 within the hyaluronan (HA) matrix, thereby activating the ITGB1/FAK/YAP1 signaling pathway. Notably, inhibiting any component of this signaling pathway partially reduced the ability of PTX3 to promote cementoblast differentiation. In conclusion, our study indicated that PTX3 promotes cementum formation and cementoblast differentiation, which is partially dependent on the HA/ITGB1/FAK/YAP1 signaling pathway. This research will contribute to our understanding of cementum regeneration after destruction.
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Affiliation(s)
- Shuo Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Beining Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Hailin Mu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Wei Dong
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Baochen Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Xinyi Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Wenqian Yu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Zhipeng Dong
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Jiawei Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China.
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Şenkal-Turhan S, Bulut-Okumuş E, Aydın M, Başak Türkmen N, Taşlıdere A, Şahin F, Yılmaz Ş, Akkuş Süt P, Doğan A. Induced Pluripotent Stem Cell-Derived Parathyroid Organoids Resemble Parathyroid Morphology and Function. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2407567. [PMID: 39331961 DOI: 10.1002/advs.202407567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 09/12/2024] [Indexed: 09/29/2024]
Abstract
The primary role of the parathyroid glands is to maintain calcium homeostasis through the secretion of parathyroid hormone (PTH). The limited proliferative capacity and differentiation of parathyroid cells hinder the generation of cell therapy options. In this study, parathyroid organoids are successfully generated from human-induced pluripotent stem cells (hiPSCs). At the end of the 20 days of differentiation, the parathyroid organoids exhibited distinct parathyroid morphology. Stereomicroscope, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) analysis demonstrated the 3D arrangement of the cell layers in which intracellular structures of parathyroid cells resemble human parathyroid cellular morphology. Comprehensive molecular analyses, including RNA sequencing (RNA-Seq) and liquid chromatography/mass spectrometry (LC-MS/MS), confirmed the expression of key parathyroid-related markers. Protein expression of CasR, CxCr4, Gcm2, and PTH are observed in parathyroid organoids. Parathyroid organoids secrete PTH, demonstrate active intercellular calcium signaling, and induce osteogenic differentiation via their secretome. The tissue integration potential of parathyroid organoids is determined by transplantation into parathyroidectomized rats. The organoid transplanted animals showed significant elevations in PTH-related markers (CasR, CxCr4, Foxn1, Gcm2, and PTH). PTH secretion is detected in organoid-transplanted animals. The findings represent a significant advancement in parathyroid organoid culture and may offer a cellular therapy for treating PTH-related diseases, including hypoparathyroidism.
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Affiliation(s)
- Selinay Şenkal-Turhan
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, İstanbul, 34755, Turkey
| | - Ezgi Bulut-Okumuş
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, İstanbul, 34755, Turkey
| | - Muhterem Aydın
- Department of Veterinary Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Fırat, Elazığ, 23119, Turkey
| | - Neşe Başak Türkmen
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, University of Inonu, Malatya, 44280, Turkey
| | - Aslı Taşlıdere
- Department of Histology and Embryology, Faculty of Medicine, University of Inonu, Malatya, 44280, Turkey
| | - Fikrettin Şahin
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, İstanbul, 34755, Turkey
| | - Şahin Yılmaz
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, İstanbul, 34755, Turkey
| | - Pınar Akkuş Süt
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, İstanbul, 34755, Turkey
| | - Ayşegül Doğan
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, İstanbul, 34755, Turkey
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Xin X, Liu J, Liu X, Xin Y, Hou Y, Xiang X, Deng Y, Yang B, Yu W. Melatonin-Derived Carbon Dots with Free Radical Scavenging Property for Effective Periodontitis Treatment via the Nrf2/HO-1 Pathway. ACS NANO 2024; 18:8307-8324. [PMID: 38437643 DOI: 10.1021/acsnano.3c12580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Periodontitis is a chronic inflammatory disease closely associated with reactive oxygen species (ROS) involvement. Eliminating ROS to control the periodontal microenvironment and alleviate the inflammatory response could potentially serve as an efficacious therapy for periodontitis. Melatonin (MT), renowned for its potent antioxidant and anti-inflammatory characteristics, is frequently employed as an ROS scavenger in inflammatory diseases. However, the therapeutic efficacy of MT remains unsatisfactory due to the low water solubility and poor bioavailability. Carbon dots have emerged as a promising and innovative nanomaterial with facile synthesis, environmental friendliness, and low cost. In this study, melatonin-derived carbon dots (MT-CDs) were successfully synthesized via the hydrothermal method. The MT-CDs have good water solubility and biocompatibility and feature excellent ROS-scavenging capacity without additional modification. The in vitro experiments proved that MT-CDs efficiently regulated intracellular ROS, which maintained mitochondrial homeostasis and suppressed the production of inflammatory mediators. Furthermore, findings from the mouse model of periodontitis indicated that MT-CDs significantly inhibited the deterioration of alveolar bone and reduced osteoclast activation and inflammation, thereby contributing to the regeneration of damaged tissue. In terms of the mechanism, MT-CDs may scavenge ROS, thereby preventing cellular damage and the production of inflammatory factors by regulating the nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) pathway. The findings will offer a vital understanding of the advancement of secure and effective ROS-scavenging platforms for more biomedical applications.
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Affiliation(s)
- Xirui Xin
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Junjun Liu
- State Key Laboratory of Supramolecular Structure and Materials, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun 130012, P. R. China
- Joint Laboratory of Opto-Functional Theranostics in Medicine and Chemistry, The First Hospital of Jilin University, Changchun 130021, P. R. China
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, P. R. China
| | - Xinchan Liu
- VIP Integrated Department of Stomatological Hospital of Jilin University, Changchun 130021, P. R. China
| | - Yu Xin
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Yubo Hou
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Xingchen Xiang
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Yu Deng
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun 130012, P. R. China
- Joint Laboratory of Opto-Functional Theranostics in Medicine and Chemistry, The First Hospital of Jilin University, Changchun 130021, P. R. China
| | - Weixian Yu
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
- Department of Oral Geriatrics, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
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Park EJ, Truong VL, Jeong WS, Min WK. Brain-Derived Neurotrophic Factor (BDNF) Enhances Osteogenesis and May Improve Bone Microarchitecture in an Ovariectomized Rat Model. Cells 2024; 13:518. [PMID: 38534361 DOI: 10.3390/cells13060518] [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: 01/08/2024] [Revised: 03/09/2024] [Accepted: 03/14/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) has gained attention as a therapeutic agent due to its potential biological activities, including osteogenesis. However, the molecular mechanisms involved in the osteogenic activity of BDNF have not been fully understood. This study aimed to investigate the action of BDNF on the osteoblast differentiation in bone marrow stromal cells, and its influence on signaling pathways. In addition, to evaluate the clinical efficacy, an in vivo animal study was performed. METHODS Preosteoblast cells (MC3T3-E1), bone marrow-derived stromal cells (ST2), and a direct 2D co-culture system were treated with BDNF. The effect of BDNF on cell proliferation was determined using the CCK-8 assay. Osteoblast differentiation was assessed based on alkaline phosphatase (ALP) activity and staining and the protein expression of multiple osteoblast markers. Calcium accumulation was examined by Alizarin red S staining. For the animal study, we used ovariectomized Sprague-Dawley rats and divided them into BDNF and normal saline injection groups. MicroCT, hematoxylin and eosin (H&E), and tartrate-resistant acid phosphatase (TRAP) stain were performed for analysis. RESULTS BDNF significantly increased ALP activity, calcium deposition, and the expression of osteoblast differentiation-related proteins, such as ALP, osteopontin, etc., in both ST-2 and the MC3T3-E1 and ST-2 co-culture systems. Moreover, the effect of BDNF on osteogenic differentiation was diminished by blocking tropomyosin receptor kinase B, as well as inhibiting c-Jun N-terminal kinase and p38 MAPK signals. Although the animal study results including bone density and histology showed increased osteoblastic and decreased osteoclastic activity, only a portion of parameters reached statistical significance. CONCLUSIONS Our study results showed that BDNF affects osteoblast differentiation through TrkB receptor, and JNK and p38 MAPK signal pathways. Although not statistically significant, the trend of such effects was observed in the animal experiment.
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Affiliation(s)
- Eugene J Park
- Department of Orthopedic Surgery, Kyungpook National University Hospital, College of Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Van-Long Truong
- Food and Bio-Industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Woo-Sik Jeong
- Food and Bio-Industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Woo-Kie Min
- Department of Orthopedic Surgery, Kyungpook National University Hospital, College of Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
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Granata V, Strina D, Schiavone ML, Bottazzi B, Mantovani A, Inforzato A, Sobacchi C. Genetic Deficiency of the Long Pentraxin 3 Affects Osteogenesis and Osteoclastogenesis in Homeostatic and Inflammatory Conditions. Int J Mol Sci 2023; 24:16648. [PMID: 38068970 PMCID: PMC10706359 DOI: 10.3390/ijms242316648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/13/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
The long pentraxin 3 (PTX3) is a soluble glycoprotein made by immune and nonimmune cells endowed with pleiotropic functions in innate immunity, inflammation, and tissue remodeling. PTX3 has recently emerged as a mediator of bone turnover in both physiological and pathological conditions, with direct and indirect effects on osteoblasts and osteoclasts. This notwithstanding, its role in bone biology, with major regard to the osteogenic potential of osteoblasts and their interplay with osteoclasts, is at present unclear. Here, we investigated the contribution of this pentraxin to bone deposition in the osteogenic lineage by assessing collagen production, mineralization capacity, osteoblast maturation, extracellular matrix gene expression, and inflammatory mediators' production in primary osteoblasts from the calvaria of wild-type (WT) and Ptx3-deficient (Ptx3-/-) mice. Also, we evaluated the effect of PTX3 on osteoclastogenesis in cocultures of primary osteoblasts and bone marrow-derived osteoclasts. Our investigations were carried out both in physiological and inflammatory conditions to recapitulate in vitro aspects of inflammatory diseases of the bone. We found that primary osteoblasts from WT animals constitutively expressed low levels of the protein in osteogenic noninflammatory conditions, and genetic ablation of PTX3 in these cells had no major impact on collagen and hydroxyapatite deposition. However, Ptx3-/- osteoblasts had an increased RANKL/OPG ratio and CD44 expression, which resulted in in enhanced osteoclastogenesis when cocultured with bone marrow monocytes. Inflammation (modelled through administration of tumor necrosis factor-α, TNF-α) boosted the expression and accumulation of PTX3 and inflammatory mediators in WT osteoblasts. In these conditions, Ptx3 genetic depletion was associated with reduced collagen deposition and immune modulators' production. Our study shed light on the role of PTX3 in osteoblast and osteoclast biology and identified a major effect of inflammation on the bone-related properties of this pentraxin, which might be relevant for therapeutic and/or diagnostic purposes in musculoskeletal pathology.
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Affiliation(s)
- Valentina Granata
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (V.G.); (D.S.); (M.L.S.); (B.B.); (A.M.)
| | - Dario Strina
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (V.G.); (D.S.); (M.L.S.); (B.B.); (A.M.)
- Milan Unit, Institute for Genetic and Biomedical Research (IRGB), National Research Council (CNR), 20138 Milan, Italy
| | - Maria Lucia Schiavone
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (V.G.); (D.S.); (M.L.S.); (B.B.); (A.M.)
| | - Barbara Bottazzi
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (V.G.); (D.S.); (M.L.S.); (B.B.); (A.M.)
| | - Alberto Mantovani
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (V.G.); (D.S.); (M.L.S.); (B.B.); (A.M.)
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
- The William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Antonio Inforzato
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (V.G.); (D.S.); (M.L.S.); (B.B.); (A.M.)
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
| | - Cristina Sobacchi
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (V.G.); (D.S.); (M.L.S.); (B.B.); (A.M.)
- Milan Unit, Institute for Genetic and Biomedical Research (IRGB), National Research Council (CNR), 20138 Milan, Italy
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Li Y, Zhang S, Liu J, Zhang Y, Zhang N, Cheng Q, Zhang H, Wu X. The pentraxin family in autoimmune disease. Clin Chim Acta 2023; 551:117592. [PMID: 37832905 DOI: 10.1016/j.cca.2023.117592] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023]
Abstract
The pentraxins represent a family of multifunctional proteins composed of long and short pentamers. The latter includes serum amyloid P component (SAP) and C-reactive protein (CRP) whereas the former includes neuronal PTX1 and PTX2 (NPTX1 and NPTX2, respectively), PTX3 and PTX4. These serve as a bridge between adaptive immunity and innate immunity and a link between inflammation and immunity. Similarities and differences between long and short pentamers are examined and their roles in autoimmune disease are discussed. Increased CRP and PTX3 could indicate the activity of rheumatoid arthritis, systemic lupus erythematosus or other autoimmune diseases. Mechanistically, CRP and PTX3 may predict target organ injury, regulate bone metabolic immunity and maintain homeostasis as well as participate in vascular endothelial remodeling. Interestingly, PTX3 is pleiotropic, being involved in inflammation and tissue repair. Given the therapeutic potential of PTX3 and CRP, targeting these factors to exert a beneficial effect is the focus of research efforts. Unfortunately, studies on NPTX1, NPTX2, PTX4 and SAP are scarce and more research is clearly needed to elaborate their potential roles in autoimmune disease.
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Affiliation(s)
- Yongzhen Li
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Shouzan Zhang
- Department of Neurosurgery, Peking University Third Hospital, Beijing, PR China
| | - Jingqi Liu
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Yudi Zhang
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Nan Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, PR China.
| | - Hao Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, PR China.
| | - Xiaochuan Wu
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China.
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Chen YZ, Huang Y, Lü XY. Molecular mechanism of a novel root-end filling material containing zirconium oxide on the osteogenic/odontogenic differentiation of human osteosarcoma MG-63 cells. Front Bioeng Biotechnol 2023; 11:1269246. [PMID: 37901837 PMCID: PMC10613028 DOI: 10.3389/fbioe.2023.1269246] [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: 07/29/2023] [Accepted: 10/03/2023] [Indexed: 10/31/2023] Open
Abstract
Although the novel root-end filling material containing zirconium oxide (NRFM-Zr) which is hydroxyapatite-based may promote osteoblast differentiation, the molecular mechanism remains unclear. The aim of this study is to investigate it underlying the osteogenic/odontogenic differentiation of human osteosarcoma MG-63 cells induced by NRFM-Zr, compared with calcium silicate-based mineral trioxide aggregate (MTA), and glass ionomer cement (GIC). Firstly, three different types of root filling materials were co-cultured with MG-63 cells, and their cell toxicity, alkaline phosphatase (ALP) activity, and calcium ion concentration were evaluated. Next, gene expression profiling microarray was employed to analyze the impact of the materials on the gene expression profile of MG-63 cells. The results of cell viability revealed that NRFM-Zr group had no significant difference compared to the negative control group. After 5 and 7 days of cultivation, both the NRFM-Zr and MTA groups exhibited significantly higher ALP activity compared to the negative control (p < 0.05). Moreover, the NRFM-Zr group had the highest calcium ion concentration, while the GIC group was the lowest (p < 0.05). Gene expression profiling microarray analysis identified 2915 (NRFM-Zr), 2254 (MTA) and 392 (GIC) differentially expressed genes, respectively. GO functional and KEGG pathway analysis revealed that differentially expressed genes of NRFM-Zr, MTA and GIC participated in 8, 6 and 0 differentiation-related pathways, respectively. Comparing the molecular mechanisms of osteogenic/odontogenic differentiation induced by hydroxyapatite-based NRFM-Zr and calcium silicate-based MTA, it was found that they shared similarities in their molecular mechanisms of promoting osteogenic differentiation. NRFM-Zr primarily promotes differentiation and inhibits cell apoptosis, thereby enhancing osteogenic/odontogenic differentiation of MG-63 cells. Furthermore, the inducing efficacy of NRFM-Zr was found to be superior to MTA.
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Affiliation(s)
- Yao-Zhong Chen
- Department of Operative Dentistry and Endodontics, Zhongda Hospital, Medical College, Southeast University, Nanjing, China
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Yan Huang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Xiao-Ying Lü
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
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Yu W, Wang HL, Zhang J, Yin C. The effects of epigenetic modifications on bone remodeling in age-related osteoporosis. Connect Tissue Res 2023; 64:105-116. [PMID: 36271658 DOI: 10.1080/03008207.2022.2120392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE As the population ages, there is an increased risk of fracture and morbidity diseases associated with aging, such as age-related osteoporosis and other bone diseases linked to aging skeletons. RESULTS Several bone-related cells, including multipotent bone mesenchymal stem cells, osteoblasts that form bone tissue, and osteoclasts that break it down, are in symbiotic relationships throughout life. Growing evidence indicates that epigenetic modifications of cells caused by aging contribute to compromised bone remodeling and lead to osteoporosis. A number of epigenetic mechanisms are at play, including DNA/RNA modifications, histone modifications, microRNAs (miRNAs), and long noncoding RNAs (lncRNAs), as well as chromatin remodeling. CONCLUSION In this review, we summarized the epigenetic modifications of different bone-related cells during the development and progression of osteoporosis associated with aging. Additionally, we described a compensatory recovery mechanism under epigenetic regulation that may lead to new strategies for regulating bone remodeling in age-related osteoporosis.
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Affiliation(s)
- Wenyue Yu
- School and Hospital of Stomatology, Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang, China
| | - He-Ling Wang
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog, Norway
| | - Jianying Zhang
- Xiangya School of Stomatology, Central South University, Changsha, China
| | - Chengcheng Yin
- School and Hospital of Stomatology, Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang, China
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9
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Molecular insight into pentraxin-3: update advances in innate immunity, inflammation, tissue remodeling, diseases, and drug role. Biomed Pharmacother 2022; 156:113783. [DOI: 10.1016/j.biopha.2022.113783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 11/20/2022] Open
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Huang W, Yu K, Kang M, Wang Q, Liao W, Liang P, Liu G, Cao Y, Miao J. Identification and functional analysis of three novel osteogenic peptides isolated from tilapia scale collagen hydrolysate. Food Res Int 2022; 162:111993. [DOI: 10.1016/j.foodres.2022.111993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 11/04/2022]
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Huang W, Lao L, Deng Y, Li Z, Liao W, Duan S, Xiao S, Cao Y, Miao J. Preparation, characterization, and osteogenic activity mechanism of casein phosphopeptide-calcium chelate. Front Nutr 2022; 9:960228. [PMID: 35983483 PMCID: PMC9378869 DOI: 10.3389/fnut.2022.960228] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/07/2022] [Indexed: 12/25/2022] Open
Abstract
Casein phosphopeptides (CPPs) are good at calcium-binding and intestinal calcium absorption, but there are few studies on the osteogenic activity of CPPs. In this study, the preparation of casein phosphopeptide calcium chelate (CPP-Ca) was optimized on the basis of previous studies, and its peptide-calcium chelating activity was characterized. Subsequently, the effects of CPP-Ca on the proliferation, differentiation, and mineralization of MC3T3-E1 cells were studied, and the differentiation mechanism of CPP-Ca on MC3T3-E1 cells was further elucidated by RNA sequencing (RNA-seq). The results showed that the calcium chelation rate of CPPs was 23.37%, and the calcium content of CPP-Ca reached 2.64 × 105 mg/kg. The test results of Ultraviolet–Visible absorption spectroscopy (UV) and Fourier transform infrared spectroscopy (FTIR) indicated that carboxyl oxygen and amino nitrogen atoms of CPPs might be chelated with calcium during the chelation. Compared with the control group, the proliferation of MC3T3-E1 cells treated with 250 μg/mL of CPP-Ca increased by 21.65%, 26.43%, and 28.43% at 24, 48, and 72 h, respectively, and the alkaline phosphatase (ALP) activity and mineralized calcium nodules of MC3T3-E1 cells were notably increased by 55% and 72%. RNA-seq results showed that 321 differentially expressed genes (DEGs) were found in MC3T3-E1 cells treated with CPP-Ca, including 121 upregulated and 200 downregulated genes. Gene ontology (GO) revealed that the DEGs mainly played important roles in the regulation of cellular components. The enrichment of the Kyoto Encyclopedia of Genes and Genomes Database (KEGG) pathway indicated that the AMPK, PI3K-Akt, MAPK, and Wnt signaling pathways were involved in the differentiation of MC3T3-E1 cells. The results of a quantitative real-time PCR (qRT-PCR) showed that compared with the blank control group, the mRNA expressions of Apolipoprotein D (APOD), Osteoglycin (OGN), and Insulin-like growth factor (IGF1) were significantly increased by 2.6, 2.0 and 3.0 times, respectively, while the mRNA levels of NOTUM, WIF1, and LRP4 notably decreased to 2.3, 2.1, and 4.2 times, respectively, which were consistent both in GO functional and KEGG enrichment pathway analysis. This study provided a theoretical basis for CPP-Ca as a nutritional additive in the treatment and prevention of osteoporosis.
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Affiliation(s)
- Wen Huang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Linhui Lao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yuliang Deng
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Ziwei Li
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Wanwen Liao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Shan Duan
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Suyao Xiao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Jianyin Miao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China.,State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Guangxi Normal University), Guilin, China.,Solid-State Fermentation Resource Utilization Key Laboratory of Sichuan Province, Yibin, China
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12
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Exposure to Random Positioning Machine Alters the Mineralization Process and PTX3 Expression in the SAOS-2 Cell Line. Life (Basel) 2022; 12:life12050610. [PMID: 35629278 PMCID: PMC9143356 DOI: 10.3390/life12050610] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/11/2022] [Accepted: 04/17/2022] [Indexed: 01/02/2023] Open
Abstract
Bone loss is among the most frequent changes seen in astronauts during space missions. Although weightlessness is known to cause high bone resorption and a rapid decrease in bone minerals and calcium, the underlying mechanisms are not yet fully understood. In our work, we investigated the influence of random positioning machine (RPM) exposure on the mineralization process in the SAOS-2 cell line, in osteogenic and non-osteogenic conditions, by examining changes in their mineralizing capacity and in the expression of PTX3, a positive regulator of bone mineralization. We analyzed cell viability by MTS assay and the mineralization process after staining with Toluidine Blue and Alizarin Red, while PTX3 expression was investigated by immunocytochemistry and western blotting analysis. Our results showed that RPM exposure increased cells’ viability and improved their mineralizing competence when not treated with osteogenic cocktail. In contrast, in osteogenic conditions, cells exposed to RPM showed a reduction in the presence of calcification-like structures, mineral deposits and PTX3 expression, suggesting that the effects of RPM exposure on mineralizing matrix deposition depend on the presence of osteogenic factors in the culture medium. Further studies will be needed to clarify the role of potential mineralization markers in the cellular response to the simulated biological effects of microgravity, paving the way for a new approach to treating osteoporosis in astronauts exposed to spaceflight.
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13
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Li X, Xu R, Ye JX, Yuan FL. Suppression of bone remodeling associated with long-term bisphosphonate treatment is mediated by microRNA-30a-5p. Bioengineered 2022; 13:9741-9753. [PMID: 35412438 PMCID: PMC9161941 DOI: 10.1080/21655979.2022.2060584] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Oral bisphosphonates (BPs) are a first-line treatment for osteoporosis. It is becoming a hot topic to identify new indicators for the early prediction of therapeutic effects and adverse reactions during the long-term use of BPs. To determine whether microRNA (miRNA) expression is modulated by long-term BPs treatment, we performed miRNA expression profiling analysis in patients receiving long-term BP treatment for postmenopausal OP. To assess the effect of BPs on miRNA expression, we used an Affymetrix Genechip miRNA array to analyze serum samples obtained from postmenopausal OP patients on long-term BP treatment and healthy controls. MiRNAs affected by BPs and their predicted targets were examined. We also investigated the effects of miRNA on osteoblast differentiation in vitro and on ovariectomy-induced bone loss in vivo. We observed that the level of miR-30a-5p was significantly increased in patients receiving long-term BP treatment for postmenopausal OP. Furthermore, miR-30a-5p was negatively correlated with bone formation. Consistent with this, in vitro osteoblast activity and matrix mineralization were increased by an antagomir of miR-30a-5p and decreased by an agomir of miR-30a-5p. We also found that miR-30a-5p directly targeted RUNX1 to inhibit osteoblastic differentiation. Consistent with the in vitro results, miR-30a-5p antagomir administration promoted bone formation in ovariectomized mice. Our findings identified miR-30a-5p as a novel mediator of long-term BP treatment that regulates bone formation in postmenopausal OP patients.
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Affiliation(s)
- Xia Li
- Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
| | - Ruisheng Xu
- Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
| | - Jun-Xing Ye
- Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China.,Department of Orthopaedics and Central Laboratory, The Third Hospital Affiliated to Nantong University, Wuxi, Jiangsu, China
| | - Feng-Lai Yuan
- Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China.,Department of Orthopaedics, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
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14
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Li A, Zhao F, Yang T, Zhao Y, Liu H, Yang S, Zhu X. PTX3/TWIST1 Feedback Loop Modulates Lipopolysaccharide-Induced Inflammation via PI3K/Akt Signaling Pathway. J Interferon Cytokine Res 2022; 42:161-169. [PMID: 35438530 DOI: 10.1089/jir.2021.0183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Chronic inflammation of nasal mucosal tissue is an obvious feature of allergic rhinitis. Pentraxin 3 (PTX3) is a member of the pentraxin family and plays important roles in inflammation. We aimed to investigate the roles and mechanisms of PTX3 in inflammatory factors and MUC5AC production in human nasal epithelia cells. Loss- and gain-of-function experiments were performed. We found that the silencing of PTX3 dramatically blocked the expression of interleukin (IL)-6, IL-8, IL-1β, and MUC5AC induced by lipopolysaccharide (LPS). Gain-of-function of PTX3 displayed the opposite results. Interestingly, the ablation of PTX3 blocked activation of the PI3K/Akt signaling pathway, whereas the administration of an agonist of PI3K, 740Y-P, partially reversed the inhibitory functions of PTX3 silencing on inflammation and MUC5AC production. Moreover, PTX3 was a positive regulator of TWIST1, which is one of the transcription factors of PTX3. We noticed that TWIST1 downregulation reduced the expression of PTX3. Furthermore, chromatin immunoprecipitation assay and dual-luciferase reporter assay demonstrated that TWIST1 could bind to the promoter of PTX3. Importantly, the depletion of TWIST1 attenuated the LPS-mediated expression and secretion of inflammatory cytokines, whereas these effects were partially abolished upon PTX3 overexpression. Taken together, our findings revealed that the PTX3/TWIST1 feedback loop modulates LPS-induced inflammation and MUC5AC production via the PI3K/Akt signaling pathway.
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Affiliation(s)
- An Li
- Department of Otolaryngology Head and Neck Surgery, Shaanxi Provincial People's Hospital, Xi'an, People's Republic of China
| | - Fangfang Zhao
- Department of Medical Imaging, Chang'an Hospital, Xi'an, People's Republic of China
| | - Ting Yang
- Xi'an Medical University, Xi'an, People's Republic of China
| | - Yuxiang Zhao
- Department of Otolaryngology Head and Neck Surgery, Shaanxi Provincial People's Hospital, Xi'an, People's Republic of China
| | - Hui Liu
- Department of Otolaryngology Head and Neck Surgery, Shaanxi Provincial People's Hospital, Xi'an, People's Republic of China
| | | | - Xuli Zhu
- Department of Otolaryngology Head and Neck Surgery, Shaanxi Provincial People's Hospital, Xi'an, People's Republic of China
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15
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Liu F, Chen GD, Fan LK. Knockdown of PDX1 enhances the osteogenic differentiation of ADSCs partly via activation of the PI3K/Akt signaling pathway. J Orthop Surg Res 2022; 17:107. [PMID: 35183219 PMCID: PMC8858563 DOI: 10.1186/s13018-021-02825-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 11/01/2021] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Osteoporosis (OP) is a systemic bone disease manifested as low bone mass, destruction of bone microstructure, increased bone fragility and fracture risk. The purpose of this study was to explore the role and mechanism of PDX1 for osteogenic differentiation of adipose derived stem cells (ADSCs).
Methods
GSE37329 dataset was retrieved from NCBI Gene Expression Omnibus (GEO) database and performed bioinformatic analyses. ADSCs were incubated with normal medium, osteogenic induction medium (OIM) and OIM+si-PDX1. Then, alkaline phosphatase (ALP) staining and Alizarin Red Staining (ARS) were performed to assess the role of PDX1 for osteogenesis of ADSCs. PI3K inhibitor, LY294002 was then added to further explore the mechanism of PDX1 for osteogenic differentiation of ADSCs. Western blot assay was used to assess the osteogenic-related markers. Graphpad software was used to perform statistically analysis.
Results
A total of 285 DEGs were obtained from analysis of the dataset GSE37329, of which 145 were upregulated and 140 were downregulated genes. These differentially expressed genes mainly enriched in cell differentiation and PI3K/Akt signaling pathway. Moreover, PDX1 was decreased in osteogenic induced ADSCs. Knockdown of PDX1 significantly increased osteogenic differentiation capacity and p-PI3K and p-Akt protein levels. Administration with LY294002 could partially reversed the promotion effects of si-PDX1.
Conclusion
In conclusion, knockdown of PDX1 promotes osteogenic differentiation of ADSCs through the PI3K/Akt signaling pathway.
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16
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Dong W, Xu X, Luo Y, Yang C, He Y, Dong X, Wang J. PTX3 promotes osteogenic differentiation by triggering HA/CD44/FAK/AKT positive feedback loop in an inflammatory environment. Bone 2022; 154:116231. [PMID: 34653679 DOI: 10.1016/j.bone.2021.116231] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/29/2021] [Accepted: 10/06/2021] [Indexed: 11/29/2022]
Abstract
The treatment of periodontitis-induced alveolar bone defects remains a clinical challenge. The secreted protein pentraxin 3 (PTX3) protects tissue during inflammation and maintains bone homeostasis in physiological conditions. However, the effects of PTX3 on osteoblast differentiation and bone regeneration after periodontitis remain unclear. Here, we found that MC3T3-E1 mouse pre-osteoblast cells secreted increased PTX3 under TNF-α-induced inflammatory conditions in vitro. Gain-of-function and loss-of-function experiments revealed that PTX3 overexpression promoted osteogenic potential in an inflammatory environment and vice versa. The promoting effect was attributed to the regulatory role of PTX3 on the hyaluronan (HA)-dependent pericellular matrix (PCM). PTX3 was found in the HA-dependent PCM of MC3T3-E1 cells, where it promoted HA synthesis and the expression of CD44 (main HA receptor), enhancing the HA-CD44 interaction. The HA-CD44 interaction further activated focal adhesion kinase (FAK)/protein kinase B (AKT) signaling cascade. FAK/AKT activation promoted the expression of HA synthases 1/2/3 (HAS1/2/3) and CD44 in MC3T3-E1 cells under inflammatory condition, forming a positive feedback loop that activated by PTX3. Importantly, when HA was digested or any one of these molecules in the positive feedback loop was blocked, PTX3 partially lost the ability to promote osteogenic differentiation in an inflammatory environment. Ligatures were removed after seven days of periodontitis induction in vivo, to investigate alveolar bone regeneration after periodontitis. Histological and Micro-CT evaluation after seven and 14 days of local PTX3 treatment showed that alveolar bone healing was significantly improved compared to the vehicle control group. These findings suggested that PTX3 can induce osteogenic differentiation in an in vitro inflammatory environment by triggering the HA/CD44/FAK/AKT positive feedback loop, and promote bone regeneration after periodontitis.
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Affiliation(s)
- Wei Dong
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Xiaoxiao Xu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Yao Luo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Chang Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Ying He
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Xiaofei Dong
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Jiawei Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China.
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17
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Abstract
Osteoporosis significantly impacts the normal life of the elderly and is reported to be closely related to dysfunction of osteoblastic differentiation. Runt-related transcription factor-2 (Runx2) is a critical transcriptional factor involved in the regulation of osteoblast differentiation. Omarigliptin is a novel dipeptidyl peptidase-4 (DDP-4) inhibitor and this study proposes to probe into its possible therapeutic function against Osteoporosis by investigating its impacts on osteoblastic differentiation. Osteogenic medium was used to induce osteoblastic differentiation in MC3T3‑E1 cells, and was verified by the increased alkaline phosphatase (ALP) activity, enhanced mineralization, and promoted expression level of osteoblastic differentiation-related factors, including bone morphogenetic protein-2 (BMP-2), ALP, osteocalcin (Ocn), collagen type I alpha 1 (Col1a1), Collagen Type I alpha 2 (Col1a2), Runx2, osterix (Sp7), fibroblast growth factor receptor 2 (Fgfr2), and fibroblast growth factor receptor 3 (Fgfr3), accompanied by the activation of the p38 and Akt pathways. After treatment with Omarigliptin, the ALP activity and mineralization were further promoted, accompanied by the further upregulation of osteoblastic differentiation-related factors, and activation of the p38 and Akt pathways. Lastly, Omarigliptin-induced osteoblastic differentiation, promoted ALP activity, and increased expression levels of Sp7, Fgfr2, Fgfr3, BMP-2, Ocn, ALP, Col1a1, and Col1a2, in the osteogenic medium- cultured MC3T3‑E1 cells were dramatically abolished by the knockdown of Runx2. Taken together, our data reveal that Omarigliptin promoted osteoblastic differentiation by regulating Runx2.
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Affiliation(s)
- Fake Liao
- Department of orthopedics, Longyan First Hospital Affiliated to Fujian Medical University, Longyan City, Fujian Province, No. 105, Jiuyi North Road, Zhongcheng, Xinluo District, 364000, China
| | - Xiunian Hu
- Department of orthopedics, Longyan First Hospital Affiliated to Fujian Medical University, Longyan City, Fujian Province, No. 105, Jiuyi North Road, Zhongcheng, Xinluo District, 364000, China
| | - Rijiang Chen
- Department of orthopedics, Longyan First Hospital Affiliated to Fujian Medical University, Longyan City, Fujian Province, No. 105, Jiuyi North Road, Zhongcheng, Xinluo District, 364000, China
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18
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Transcriptome Analysis of Egg Yolk Sialoglycoprotein on Osteogenic Activity in MC3T3-E1 Cells. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11146428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this study, the effects of egg yolk sialoglycoprotein (EYG) on osteogenesis in MC3T3-E1 cells were investigated and the DEGs (differentially expressed genes) were explored by transcriptome analysis. The results found that EYG effectively increased cell proliferation, enhanced ALP activity, promoted the secretion of extracellular matrix protein COL-I and OCN, enhanced bone mineralization activity, exhibiting good osteogenic activity. Further study of the mechanism was explored through transcriptome analysis. Transcriptome analysis showed that 123 DEGs were triggered by EYG, of which 78 genes were downregulated and 45 genes were upregulated. GO (gene ontology) analysis showed that EYG mainly caused differences in gene expression of biological processes and cell composition categories in the top 30 most enriched items. KEGG (Kyoto Encyclopedia of Genes and Genomes) analysis showed that EYG inhibited inflammatory factors and downregulated inflammation-related pathways. The results also showed EYG regulated such genes as COL2A1, COL4A1 and COL4A2 to up-regulate pathways including ECM–receptor interaction, focal adhesion and protein digestion and absorption, enhancing the proliferation and differentiation of osteoblasts. Gene expression of COL-I, Runx2, BMP2 and β-catenin was determined by qRT-PCR for verification, which found that EYG significantly increased COL-I, Runx2, BMP2 and β-catenin gene expression, suggesting that BMP-2 mediated osteogenesis pathway was activated.
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19
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Greggi C, Cariati I, Onorato F, Iundusi R, Scimeca M, Tarantino U. PTX3 Effects on Osteogenic Differentiation in Osteoporosis: An In Vitro Study. Int J Mol Sci 2021; 22:ijms22115944. [PMID: 34073015 PMCID: PMC8198053 DOI: 10.3390/ijms22115944] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/20/2021] [Accepted: 05/26/2021] [Indexed: 11/16/2022] Open
Abstract
Pentraxin 3 (PTX3) is a glycoprotein belonging to the humoral arm of innate immunity that participates in the body’s defence mechanisms against infectious diseases. It has recently been defined as a multifunctional protein, given its involvement in numerous physiological and pathological processes, as well as in the pathogenesis of age-related diseases such as osteoporosis. Based on this evidence, the aim of our study was to investigate the possible role of PTX3 in both the osteoblastic differentiation and calcification process: to this end, primary osteoblast cultures from control and osteoporotic patients were incubated with human recombinant PTX3 (hrPTX3) for 72 h. Standard osteinduction treatment, consisting of β-glycerophosphate, dexamethasone and ascorbic acid, was used as control. Our results showed that treatment with hrPTX3, as well as with the osteogenic cocktail, induced cell differentiation towards the osteoblastic lineage. We also observed that the treatment not only promoted an increase in cell proliferation, but also the formation of calcification-like structures, especially in primary cultures from osteoporotic patients. In conclusion, the results reported here suggest the involvement of PTX3 in osteogenic differentiation, highlighting its osteoinductive capacity, like the standard osteoinduction treatment. Therefore, this study opens new and exciting perspectives about the possible role of PTX3 as biomarker and therapeutic agent for osteoporosis.
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Affiliation(s)
- Chiara Greggi
- Ph.D. in Medical-Surgical Biotechnologies and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy; (C.G.); (I.C.)
- Department of Clinical Sciences and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy
| | - Ida Cariati
- Ph.D. in Medical-Surgical Biotechnologies and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy; (C.G.); (I.C.)
- Department of Clinical Sciences and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy
| | - Federica Onorato
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, viale Oxford 81, 00133 Rome, Italy; (F.O.); (R.I.)
| | - Riccardo Iundusi
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, viale Oxford 81, 00133 Rome, Italy; (F.O.); (R.I.)
| | - Manuel Scimeca
- Department of Biomedicine and Prevention, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy;
| | - Umberto Tarantino
- Department of Clinical Sciences and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, viale Oxford 81, 00133 Rome, Italy; (F.O.); (R.I.)
- Correspondence:
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20
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Tao ZS, Zhou WS, Zhang RT, Li Y, Xu HG, Wei S, Wang ZY, Yang M. Co-modification of calcium phosphate cement to achieve rapid bone regeneration in osteoporotic femoral condyle defect with lithium and aspirin. Am J Transl Res 2021; 13:952-966. [PMID: 33841632 PMCID: PMC8014368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
Local application of lithium or aspirin with biological scaffold has been identified as a potent means to improve bone formation. In this study, lithium and aspirin modified calcium phosphate cement (Asp-Li/CPC) was prepared, and the feasibility of this biological scaffold in the treatment of osteoporotic bone defect was observed in vivo and in vitro. In vitro experiments confirmed that Asp-Li/CPC had better ability to promote MC3T3-E1 cells differentiation into osteoblasts, osteoblast mineralization and viability, and promote cell expression of ALP, OP, RUNX-2, OC and COL-1 protein than simple CPC or lithium modified CPC by MTT, Alizarin red staining and Western blot evaluation. In vivo experiments confirmed that Asp-Li/CPC presented the strongest effect on bone regeneration and bone mineralization through the comparison with CPC group and Li/CPC group with X-ray images, Micro-CT and Histological evaluation. RT-qPCR analysis showed that Asp-Li/CPC, Li/CPC group and CPC group demonstrated increased BMP2, Smad1, OPG than the OVX group (P<0.05), while Asp-Li/CPC exhibited decreased TNF-α, IFN-γ and RANKL than the OVX group (P<0.05). Experiments in vivo and in vitro show that Asp-Li/CPC is a scheme for rapid repair of femoral condylar defects, and these effects may be achieved by inhibiting local inflammation and through BMP-2/Smad1 and OPG/RANKL signaling pathway.
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Affiliation(s)
- Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan HospitalWuhu 241001, Anhui, People’s Republic of China
| | - Wan-Shu Zhou
- Department of Geriatrics, The Second Affiliated Hospital of Wannan Medical CollegeWuhu 241000, Anhui, People’s Republic of China
| | - Rou-Tian Zhang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan HospitalWuhu 241001, Anhui, People’s Republic of China
| | - Yang Li
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan HospitalWuhu 241001, Anhui, People’s Republic of China
| | - Hong-Guang Xu
- Spine Research Center of Wannan Medical College, Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution (Wannan Medical College), Department of Spine Surgery, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical CollegeWuhu 241001, Anhui, People’s Republic of China
| | - Shan Wei
- Key Laboratory of Advanced Perception and Intelligent Control of High-end Equipment, Ministry of EducationWuhu 241000, Anhui, People’s Republic of China
- Additive Manufacturing Institute of Anhui Polytechnic UniversityWuhu 241000, Anhui, People’s Republic of China
- Anhui Key Laboratory of Advanced Numerical Control & Servo TechnologyWuhu 241000, Anhui, People’s Republic of China
| | - Zheng-Yu Wang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan HospitalWuhu 241001, Anhui, People’s Republic of China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan HospitalWuhu 241001, Anhui, People’s Republic of China
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21
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Hu L, Liu J, Xue H, Panayi AC, Xie X, Lin Z, Wang T, Xiong Y, Hu Y, Yan C, Chen L, Abududilibaier A, Zhou W, Mi B, Liu G. miRNA-92a-3p regulates osteoblast differentiation in patients with concomitant limb fractures and TBI via IBSP/PI3K-AKT inhibition. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 23:1345-1359. [PMID: 33717654 PMCID: PMC7920808 DOI: 10.1016/j.omtn.2021.02.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 02/08/2021] [Indexed: 01/20/2023]
Abstract
Patients who sustain concomitant fractures and traumatic brain injury (TBI) are known to have significantly quicker fracture-healing rates than patients with isolated fractures. The mechanisms underlying this phenomenon have yet to be identified. In the present study, we found that the upregulation of microRNA-92a-3p (miRNA-92a-3p) induced by TBI correlated with a decrease in integrin binding sialoprotein (IBSP) expression in callus formation. In vitro, overexpressing miRNA-92a-3p inhibited IBSP expression and accelerated osteoblast differentiation, whereas silencing of miRNA-92a-3p inhibited osteoblast activity. A decrease in IBSP facilitated osteoblast differentiation via the Phosphatidylinositol 3-kinase/threonine kinase 1 (PI3K/AKT) signaling pathway. Through luciferase assays, we found evidence that IBSP is a miRNA-92a-3p target gene that negatively regulates osteoblast differentiation. Moreover, the present study confirmed that pre-injection of agomiR-92a-3p leads to increased bone formation. Collectively, these results indicate that miRNA-92a-3p overexpression may be a key factor underlying the improved fracture healing observed in TBI patients. Upregulation of miRNA-92a-3p may therefore be a promising therapeutic strategy for promoting fracture healing and preventing nonunion.
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Affiliation(s)
- Liangcong Hu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Jing Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Hang Xue
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Adriana C Panayi
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston 02215, USA
| | - Xudong Xie
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Ze Lin
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Tiantian Wang
- Department of Emergency, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Yuan Xiong
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Yiqiang Hu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Chengcheng Yan
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Lang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Abudula Abududilibaier
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Wu Zhou
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Bobin Mi
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
| | - Guohui Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China
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22
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Tarantino U, Greggi C, Cariati I, Visconti VV, Gasparini M, Cateni M, Gasbarra E, Botta A, Salustri A, Scimeca M. The Role of PTX3 in Mineralization Processes and Aging-Related Bone Diseases. Front Immunol 2021; 11:622772. [PMID: 33584725 PMCID: PMC7878364 DOI: 10.3389/fimmu.2020.622772] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/16/2020] [Indexed: 12/11/2022] Open
Abstract
The Long Pentraxin 3 (PTX3) is a multifunctional glycoprotein released by peripheral blood leukocytes and myeloid dendritic cells in response to primary pro-inflammatory stimuli, that acts as a non-redundant component of the humoral arm of innate immunity. In addition to the primary role in the acute inflammatory response, PTX3 seems to be involved in other physiological and pathological processes. Indeed, PTX3 seems to play a pivotal role in the deposition and remodeling of bone matrix during the mineralization process, promoting osteoblasts differentiation and activity. Recently, PTX3 was seen to be involved in the ectopic calcifications' formation in breast cancer disease. In this regard, it has been observed that breast cancer tumors characterized by high expression of PTX3 and high amount of Breast Osteoblast Like Cells (BOLCs) showed several Hydroxyapatite (HA) microcalcifications, suggesting a likely role for PTX3 in differentiation and osteoblastic activity in both bone and extra-bone sites. Furthermore, given its involvement in bone metabolism, several studies agree with the definition of PTX3 as a molecule significantly involved in the pathogenesis of age-related bone diseases, such as osteoporosis, both in mice and humans. Recent results suggest that genetic and epigenetic mechanisms acting on PTX3 gene are also involved in the progression of these diseases. Based on these evidences, the aim of our systemic review was to offer an overview of the variety of biological processes in which PTX3 is involved, focusing on bone mineralization, both in a physiological and pathological context.
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Affiliation(s)
- Umberto Tarantino
- Department of Clinical Science and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy.,Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy
| | - Chiara Greggi
- Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy.,Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.,PhD students' Program in Medical-Surgical and Biotechnologies and Translational Medicine, Faculty of Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - Ida Cariati
- Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy.,Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.,PhD students' Program in Medical-Surgical and Biotechnologies and Translational Medicine, Faculty of Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - Virginia Veronica Visconti
- Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy.,Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.,PhD students' Program in Medical-Surgical and Biotechnologies and Translational Medicine, Faculty of Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - Monica Gasparini
- Department of Clinical Science and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy.,Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy
| | - Marco Cateni
- Department of Clinical Science and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy.,Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy
| | - Elena Gasbarra
- Department of Clinical Science and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy.,Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy
| | - Annalisa Botta
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Antonietta Salustri
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Manuel Scimeca
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
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Parathyroid hormone (1-34) can reverse the negative effect of valproic acid on the osseointegration of titanium rods in ovariectomized rats. J Orthop Translat 2020; 27:67-76. [PMID: 33437639 PMCID: PMC7777001 DOI: 10.1016/j.jot.2020.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/06/2020] [Accepted: 10/19/2020] [Indexed: 01/21/2023] Open
Abstract
Objective The present work was aimed to evaluate the effect of valproic acid (VPA),Parathyroid hormone (1–34) (PTH)+VPA on Ti rods osseointegration in ovariectomized rats and further investigation of the possible mechanism. Methods The MC3T3-E1 cells were co-cultured with VPA,PTH + VPA and induced to osteogenesis, and the cell viability,mineralization ability were observed by MTT and ALP staining,Alizarin Red staining and Western blotting. Twelve weeks after bilateral ovariectomy, all animals were randomly divided into four groups: group OVX and VPA,PTH + VPA, and all the rats received Ti implants and animals belong to group VPA,PTH + VPA received valproic acid (300 mg/day), valproic acid (300 mg/day) plus Parathyroid hormone (1–34) every 3 days (60 μg/kg), respectively, treatment until death at 12 weeks. Micro-CT, histology, biomechanical testing, bone metabolism index and Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis were used to observe the therapeutic effect and explore the possible mechanism. Results Results shown that VPA decreased new bone formation around the surface of titanium rods and push-out force other than group OVX. Histology, Micro-CT and biochemical analysis results showed combined application of systemic VPA showed harmful effects than OVX group on bone formation in osteopenia rats, with the worse effects on CTX-1, P1NP and microarchitecture as well as biomechanical parameters by down-regulated gene expression of Runx2, OCN, Smad1, BMP-2 and OPG, while up-regulated RANKL. However, after PTH treatment, the above indicators were significantly improved. Conclusions The present study suggests that systemic use of VPA may bring harm to the stability of titanium implants in osteoporosis, PTH can reverse the negative effect of VPA on the osseointegration of titanium rods in ovariectomized rats. Translational potential of this article According to our research, when patients with epilepsy have osteoporotic fractures, after joint replacement or internal fixation, continue to use sodium valproate for anti-epileptic therapy, the possibility of postoperative loosening increases, again on the basis of It can be reversed with the anti-osteoporosis drug parathyroid hormone (1-34).
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24
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Pan Y, Xie Z, Cen S, Li M, Liu W, Tang S, Ye G, Li J, Zheng G, Li Z, Yu W, Wang P, Wu Y, Shen H. Long noncoding RNA repressor of adipogenesis negatively regulates the adipogenic differentiation of mesenchymal stem cells through the hnRNP A1-PTX3-ERK axis. Clin Transl Med 2020; 10:e227. [PMID: 33252864 PMCID: PMC7648959 DOI: 10.1002/ctm2.227] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) are pluripotent stem cells that can differentiate via osteogenesis and adipogenesis. The mechanism underlying MSC lineage commitment still remains incompletely elucidated. Understanding the regulatory mechanism of MSC differentiation will help researchers induce MSCs toward specific lineages for clinical use. In this research, we intended to figure out the long noncoding RNA (lncRNA) that plays a central role in MSC fate determination and explore its application value in tissue engineering. METHODS The expression pattern of lncRNAs during MSC osteogenesis/adipogenesis was detected by microarray and qRT-PCR. Lentivirus and siRNAs were constructed to regulate the expression of lncRNA repressor of adipogenesis (ROA). MSC osteogenesis/adipogenesis was evaluated by western blot and alizarin red/oil red staining. An adipokine array was used to select the paracrine/autocrine factor PTX3, followed by RNA interference or recombinant human protein stimulation to confirm its function. The activation of signaling pathways was also detected by western blot, and a small molecule inhibitor, SCH772984, was used to inhibit the activation of the ERK pathway. The interaction between ROA and hnRNP A1 was detected by RNA pull-down and RIP assays. Luciferase reporter and chromatin immunoprecipitation assays were used to confirm the binding of hnRNP A1 to the PTX3 promotor. Additionally, an in vivo adipogenesis experiment was conducted to evaluate the regulatory value of ROA in tissue engineering. RESULTS In this study, we demonstrated that MSC adipogenesis is regulated by lncRNA ROA both in vitro and in vivo. Mechanistically, ROA inhibits MSC adipogenesis by downregulating the expression of the key autocrine/paracrine factor PTX3 and the downstream ERK pathway. This downregulation was achieved through transcription inhibition by impeding hnRNP A1 from binding to the promoter of PTX3. CONCLUSIONS ROA negatively regulates MSC adipogenesis through the hnRNP A1-PTX3-ERK axis. ROA may be an effective target for modulating MSCs in tissue engineering.
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Affiliation(s)
- Yiqian Pan
- Department of OrthopedicsThe Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhenChina
- Department of OrthopedicsSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Zhongyu Xie
- Department of OrthopedicsThe Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhenChina
| | - Shuizhong Cen
- Department of OrthopedicsSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Department of OrthopedicsZhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Ming Li
- Department of OrthopedicsSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Wenjie Liu
- Department of OrthopedicsThe Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhenChina
| | - Su'an Tang
- Clinical Research CenterZhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Guiwen Ye
- Department of OrthopedicsSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Jinteng Li
- Department of OrthopedicsThe Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhenChina
| | - Guan Zheng
- Department of OrthopedicsThe Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhenChina
| | - Zhaofeng Li
- Department of OrthopedicsSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Wenhui Yu
- Department of OrthopedicsSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Peng Wang
- Department of OrthopedicsThe Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhenChina
| | - Yanfeng Wu
- Center for BiotherapySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Huiyong Shen
- Department of OrthopedicsThe Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhenChina
- Department of OrthopedicsSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
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25
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Tao ZS, Zhou WS, Xu HG, Yang M. Aspirin modified strontium-doped β-tricalcium phosphate can accelerate the healing of femoral metaphyseal defects in ovariectomized rats. Biomed Pharmacother 2020; 132:110911. [PMID: 33125972 DOI: 10.1016/j.biopha.2020.110911] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/14/2020] [Accepted: 10/17/2020] [Indexed: 12/16/2022] Open
Abstract
The purpose was to observe whether local administration Strontium (Sr) and Aspirin (Asp) can enhance the efficacy of β-Tricalcium phosphate(β-TCP) in the treatment of osteoporotic bone defect. The MC3T3-E1 cells were co-cultured with β-TCP, Sr/β-TCP, Asp-Sr/β-TCP scaffold and induced to osteogenesis, and the cell viability, mineralization ability were observed by MTT, Alizarin Red staining(ARS) and Western blotting(WB). Then this scaffolds were implanted into the femoral epiphysis bone defect model of ovariectomized(OVX) rats for 8 weeks. X-ray, Micro-CT, histology and Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis were used to observe the therapeutic effect and explore the possible mechanism. MTT, ARS results show that the cell mineralization and viability of Asp-Sr/β-TCP group is significantly higher than Control group, β-TCP group and Sr/β-TCP group. Protein expression show that the osteogenic protein expression such as ALP、OP、RUNX-2、OC and COL-1 of Asp-Sr/β-TCP group is significantly higher than Control group, β-TCP group and Sr/β-TCP group. X-ray images, Micro-CT and Histological analysis evaluation show that, group Asp-Sr/β-TCP presented the strongest effect on bone regeneration and bone mineralization, when compared with β-TCP group and Sr/β-TCP group. RT-qPCR analysis show that Asp-Sr/β-TCP, β-TCP group and Sr/β-TCP group showed increased BMP2, Smad1, OPG than the OVX group(p < 0.05), while Asp-Sr/β-TCP exhibited decreased TNF-α、IFN-γ and RANKL than the OVX group(p < 0.05). Our current study demonstrated that Asp-Sr/ β-TCP is a scheme for rapid repair of femoral condylar defects, and these effects may be achieved by inhibiting local inflammation and through BMP-2/Smad1 and OPG/RANKL signaling pathway.
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Affiliation(s)
- Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001 Anhui, People's Republic of China
| | - Wan-Shu Zhou
- Department of Geriatrics, the Second Affiliated Hospital of Wannan Medical College, No.123, Kangfu Road, Wuhu, 241000 Anhui, People's Republic of China.
| | - Hong-Guang Xu
- Department of Spinal orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001 Anhui, People's Republic of China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001 Anhui, People's Republic of China
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26
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Liu LL, Cao ZH, He CL, Zhong YC, Liu WY, Zhang P, Yang F, Xu YJ. Ferric Ion Induction of Triggering Receptor Expressed in Myeloid Cells-2 Expression and PI3K/Akt Signaling Pathway in Preosteoclast Cells to Promote Osteoclast Differentiation. Orthop Surg 2020; 12:1304-1312. [PMID: 32729185 PMCID: PMC7454152 DOI: 10.1111/os.12750] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/24/2020] [Accepted: 06/18/2020] [Indexed: 12/16/2022] Open
Abstract
Objective Iron plays a significant role in multiple biological processes. The purpose of this study was to measure whether iron mediated osteoclast differentiation through regulation of triggering receptor expressed in myeloid cells‐2 (Trem‐2) expression and the PI3K/Akt signaling pathway. Methods The effects of six different concentrations of ferric ammonium citrate (FAC) (100, 80, 40, 20, 10 and 0 μmol/L) on RAW 264.7 cells proliferation were assessed by Cell Counting Kit‐8 (CCK‐8) gassay. Tartrate resistant acid phosphatase (TRAP) assay was performed to detect the effects of FAC on osteoclast formation. The expression of osteoclast differentiation‐related (TRAP, NFATc‐1, and c‐Fos) and Trem‐2 mRNA and proteins was analyzed by reverse transcription‐polymerase chain reaction and western blot, respectively. Si‐Trem‐2 was constructed and transfected to RAW264.7 to measure the effects of Trem‐2 on FAC‐mediated osteoclast formation. TRAP assay and osteoclast differentiation‐related gene analyses were further performed to identify the role of Trem‐2 in osteoclastogenesis. The Search Tool for the Retrieval of Interacting Genes (STRING) was used to explore the target genes of Trem‐2. Trem‐2‐related gene ontology and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway were used for further in‐depth analysis. PI3K/Akt pathway‐related proteins were detected by immunofluorescence and western blot. Results In groups with FAC concentration of 10 (102.5 ± 3.1), 20 (100.5 ± 1.5), and 40 μmol/L (98.7 ± 3.1), compared with the control group (100.1 ± 2.2), cell viability was not significantly different from the control (P > 0.05). When the concentration of FAC exceeded 80 μmol/L, cell viability was significantly decreased (87.5 ± 2.8 vs 100.1 ± 2.2, P < 0.05). FAC promotes Trem‐2 expression and osteoclast differentiation in a dose‐response manner (P < 0.05). The number of osteoclast‐like cells was found to be reduced following transfection with the siRNA of Trem‐2 (42 ± 3 vs 30 ± 5, P < 0.05). We observed that most of Trem‐2 target genes are primarily involved in response to organic substance, regulation of reactive oxygen species metabolic process, and regulation of protein phosphorylation. The STRING database revealed that Trem‐2 directly target two gene nodes (Pik3ca and Pik3r1), which are key transcriptional cofactors of the PI3K/Akt signaling pathway. KEGG pathways include the “PI3K‐Akt signaling pathway,” the “thyroid hormone signaling pathway”, “prostate cancer,” the “longevity regulating pathway,” and “insulin resistance.” Expression of p‐PI3K and p‐Akt protein, measured by immunofluorescence and western blotting, was markedly increased in the FAC groups. Trem‐2 siRNA caused partial reduction of these two proteins (p‐PI3K and p‐Akt) compared to the FAC alone group. Conclusion The FAC promoted osteoclast differentiation through the Trem‐2‐mediated PI3K/Akt signaling pathway. However, its regulation osteoclastogenesis should be verified through further in vivo studies.
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Affiliation(s)
- Lu-Lin Liu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Department of Orthopaedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Zi-Hou Cao
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Chun-Lei He
- Department of Orthopaedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Yan-Chun Zhong
- Department of Orthopaedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Wu-Yang Liu
- Department of Orthopaedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Peng Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Fan Yang
- Osteoporosis Institute of Soochow University, Suzhou, China
| | - You-Jia Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Osteoporosis Institute of Soochow University, Suzhou, China
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