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Xiao X, Zhang M, Qian Y, Wang X, Wu Q. KLF9 regulates osteogenic differentiation of mesenchymal stem cells. J Mol Histol 2024; 55:503-512. [PMID: 38801643 DOI: 10.1007/s10735-024-10204-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 05/16/2024] [Indexed: 05/29/2024]
Abstract
Osteoporosis is a progressive skeletal disease which is characterized by reduced bone mass and degradation of bone microstructure. Mesenchymal stem cells (MSCs) have the potential to inhibit osteoporosis since they are multipotent stem cells that can differentiate into multiple types of cells including osteoblasts. Hence the mechanism of osteogenic differentiation of MSCs deserves comprehensive study. Here we report that KLF9 is a novel regulator in osteogenic differentiation of MSCs. We observed that depletion of KLF9 can largely compromise the osteogenic differentiation ability of MSCs. In addition, we revealed that inhibition of the PI3K-Akt pathway could also affect osteogenic differentiation since KLF9 depletion inhibits PI3K expression. Finally, we discovered that KLF9 expression can be induced by dexamethasone which is an essential component in osteogenic induction medium. Taken together, our study provides new insights into the regulatory role of KLF9 in osteogenic differentiation of MSCs.
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Affiliation(s)
- Xiaoxiao Xiao
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
- Faculty of Chinese Medicine, Hunan Traditional Chinese Medical College, Zhuzhou, China
| | - Ming Zhang
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yiwei Qian
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Xuepeng Wang
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Qiang Wu
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
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2
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Logli AL, Evans CH, Duryea J, Larson DR, Bakri K, Carlsen BT, Dennison DG, Karim KE, Pulos NA, Rhee PC, Rizzo M, Shin AY, Elhassan BT, Kakar S. Investigation Into the Effects of Intra-Articular Steroid on Post-Traumatic Osteoarthritis in Distal Radius Fractures: A Randomized Controlled Pilot Study. J Hand Surg Am 2024; 49:757-765. [PMID: 38180412 DOI: 10.1016/j.jhsa.2023.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 01/06/2024]
Abstract
PURPOSE The aim of this prospective, randomized, controlled, double-blinded pilot study was to determine the rates of post-traumatic osteoarthritis and assess joint space width in the presence or absence of a single intra-articular injection of corticosteroid after an acute, intra-articular distal radius fracture (DRF). METHODS Forty patients received a single, intra-articular, radiocarpal joint injection of 4 mg of dexamethasone (DEX) (n = 19) or normal saline placebo (n = 21) within 2 weeks of a surgically or nonsurgically treated intra-articular DRF. The primary outcome measure was minimum radiocarpal joint space width (mJSW) on noncontrast computed tomography scans at 2 years postinjection. Secondary outcomes were obtained at 3 months, 6 months, 1 year, and 2 years postinjection and included Disabilities of the Arm, Shoulder, and Hand; Michigan Hand Questionnaire; Patient-Rated Wrist Evaluation; wrist range of motion; and grip strength. RESULTS At 2-year follow-up, there was no difference in mean mJSW between the DEX group (2.2 mm; standard deviation, 0.6; range, 1.4-3.2) and the placebo group (2.3 mm; standard deviation, 0.7; range, 0.9-3.9). Further, there were no differences in any secondary outcome measures at any postinjection follow-up interval. CONCLUSIONS Radiocarpal joint injection of corticosteroid within 2 weeks of an intra-articular DRF does not appear to affect the development of post-traumatic osteoarthritis within 2 years follow-up in a small pilot cohort. TYPE OF STUDY/LEVEL OF EVIDENCE Therapeutic II.
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Affiliation(s)
| | | | - Jeffrey Duryea
- Department of Orthopedic Radiology, Harvard Medical School, Boston, MA
| | - Dirk R Larson
- Department of Clinical Trials and Biostatistics, Mayo Clinic, Rochester, MN
| | - Karim Bakri
- Department of Plastic and Reconstructive Surgery, Mayo Clinic, Rochester, MN
| | - Brian T Carlsen
- Department of Plastic and Reconstructive Surgery, Mayo Clinic, Rochester, MN
| | | | - Kristin E Karim
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN
| | | | - Peter C Rhee
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN
| | - Marco Rizzo
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN
| | | | - Bassem T Elhassan
- Department of Orthopedic Surgery, Harvard Medical School, Boston, MA
| | - Sanjeev Kakar
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN.
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3
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Soleymani Eil Bakhtiari S, Karbasi S. Keratin-containing scaffolds for tissue engineering applications: a review. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:916-965. [PMID: 38349200 DOI: 10.1080/09205063.2024.2311450] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/24/2024] [Indexed: 04/13/2024]
Abstract
In tissue engineering and regenerative medicine applications, the utilization of bioactive materials has become a routine tool. The goal of tissue engineering is to create new organs and tissues by combining cell biology, materials science, reactor engineering, and clinical research. As part of the growth pattern for primary cells in an organ, backing material is frequently used as a supporting material. A porous three-dimensional (3D) scaffold can provide cells with optimal conditions for proliferating, migrating, differentiating, and functioning as a framework. Optimizing the scaffolds' structure and altering their surface may improve cell adhesion and proliferation. A keratin-based biomaterials platform has been developed as a result of discoveries made over the past century in the extraction, purification, and characterization of keratin proteins from hair and wool fibers. Biocompatibility, biodegradability, intrinsic biological activity, and cellular binding motifs make keratin an attractive biomaterial for tissue engineering scaffolds. Scaffolds for tissue engineering have been developed from extracted keratin proteins because of their capacity to self-assemble and polymerize into intricate 3D structures. In this review article, applications of keratin-based scaffolds in different tissues including bone, skin, nerve, and vascular are explained based on common methods of fabrication such as electrospinning, freeze-drying process, and sponge replication method.
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Affiliation(s)
- Sanaz Soleymani Eil Bakhtiari
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Saeed Karbasi
- Biomaterials and Tissue Engineering Department, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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4
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Zheng L, Li Z, Wang B, Sun R, Sun Y, Ren J, Zhao J. M 6A Demethylase Inhibits Osteogenesis of Dental Follicle Stem Cells via Regulating miR-7974/FKBP15 Pathway. Int J Mol Sci 2023; 24:16121. [PMID: 38003310 PMCID: PMC10671807 DOI: 10.3390/ijms242216121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
N6-methyladenosine (m6A) is the most abundant RNA modification, regulating gene expression in physiological processes. However, its effect on the osteogenic differentiation of dental follicle stem cells (DFSCs) remains unknown. Here, m6A demethylases, the fat mass and obesity-associated protein (FTO), and alkB homolog 5 (ALKBH5) were overexpressed in DFSCs, followed by osteogenesis assay and transcriptome sequencing to explore potential mechanisms. The overexpression of FTO or ALKBH5 inhibited the osteogenesis of DFSCs, evidenced by the fact that RUNX2 independently decreased calcium deposition and by the downregulation of the osteogenic genes OCN and OPN. MiRNA profiling revealed that miR-7974 was the top differentially regulated gene, and the overexpression of m6A demethylases significantly accelerated miR-7974 degradation in DFSCs. The miR-7974 inhibitor decreased the osteogenesis of DFSCs, and its mimic attenuated the inhibitory effects of FTO overexpression. Bioinformatic prediction and RNA sequencing analysis suggested that FK506-binding protein 15 (FKBP15) was the most likely target downstream of miR-7974. The overexpression of FKBP15 significantly inhibited the osteogenesis of DFSCs via the restriction of actin cytoskeleton organization. This study provided a data resource of differentially expressed miRNA and mRNA after the overexpression of m6A demethylases in DFSCs. We unmasked the RUNX2-independent effects of m6A demethylase, miR-7974, and FKBP15 on the osteogenesis of DFSCs. Moreover, the FTO/miR-7974/FKBP15 axis and its effects on actin cytoskeleton organization were identified in DFSCs.
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Affiliation(s)
- Linwei Zheng
- 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 430072, China; (L.Z.); (Z.L.); (B.W.); (R.S.); (Y.S.)
| | - Zhizheng Li
- 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 430072, China; (L.Z.); (Z.L.); (B.W.); (R.S.); (Y.S.)
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Bing 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 430072, China; (L.Z.); (Z.L.); (B.W.); (R.S.); (Y.S.)
| | - Rui Sun
- 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 430072, China; (L.Z.); (Z.L.); (B.W.); (R.S.); (Y.S.)
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Yuqi Sun
- 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 430072, China; (L.Z.); (Z.L.); (B.W.); (R.S.); (Y.S.)
| | - Jiangang Ren
- 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 430072, China; (L.Z.); (Z.L.); (B.W.); (R.S.); (Y.S.)
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Jihong Zhao
- 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 430072, China; (L.Z.); (Z.L.); (B.W.); (R.S.); (Y.S.)
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
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5
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Sørensen NN, Andreasen CM, Jensen PR, Hauge EM, Bollerslev J, Delaissé JM, Kassem M, Jafari A, Diaz-delCastillo M, Andersen TL. Disturbed bone marrow adiposity in patients with Cushing's syndrome and glucocorticoid- and postmenopausal- induced osteoporosis. Front Endocrinol (Lausanne) 2023; 14:1232574. [PMID: 37881495 PMCID: PMC10597666 DOI: 10.3389/fendo.2023.1232574] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/19/2023] [Indexed: 10/27/2023] Open
Abstract
Background Skeletal stem/progenitor cells (SSPCs) in the bone marrow can differentiate into osteoblasts or adipocytes in response to microenvironmental signalling input, including hormonal signalling. Glucocorticoids (GC) are corticosteroid hormones that promote adipogenic differentiation and are endogenously increased in patients with Cushing´s syndrome (CS). Here, we investigate bone marrow adiposity changes in response to endogenous or exogenous GC increases. For that, we characterize bone biopsies from patients with CS and post-menopausal women with glucocorticoid-induced osteoporosis (GC-O), compared to age-matched controls, including postmenopausal osteoporotic patients (PM-O). Methods Transiliac crest bone biopsies from CS patients and healthy controls, and from postmenopausal women with GC-O and matched controls were analysed; an additional cohort included biopsies from women with PM-O. Plastic-embedded biopsies were sectioned for histomorphometric characterization and quantification of adipocytes. The fraction of adipocyte area per tissue (Ad.Ar/T.Ar) and marrow area (Ad.Ar/Ma.Ar), mean adipocyte profile area (Ad.Pf.Ar) and adipocyte profile density (N.Ad.Pf/Ma.Ar) were determined and correlated to steroid levels. Furthermore, the spatial distribution of adipocytes in relation to trabecular bone was characterized and correlations between bone marrow adiposity and bone remodeling parameters investigated. Results Biopsies from patients with CS and GC-O presented increased Ad.Ar/Ma.Ar, along with adipocyte hypertrophy and hyperplasia. In patients with CS, both Ad.Ar/Ma.Ar and Ad.Pf.Ar significantly correlated with serum cortisol levels. Spatial distribution analyses revealed that, in CS, the increase in Ad.Ar/Ma.Ar near to trabecular bone (<100 µm) was mediated by both adipocyte hypertrophy and hyperplasia, while N.Ad.Pf/Ma.Ar further into the marrow (>100 µm) remained unchanged. In contrast, patients with GC-O only presented increased Ad.Ar/Ma.Ar and mean Ad.Pf.Ar>100 µm from trabecular bone surface, highlighting the differential effect of increased endogenous steroid accumulation. Finally, the Ad.Ar/Ma.Ar and Ad.Ar/T.Ar correlated with the canopy coverage above remodeling events. Conclusion Increased cortisol production in patients with CS induces increased bone marrow adiposity, primarily mediated by adipocyte hypertrophy. This adiposity is particularly evident near trabecular bone surfaces, where hyperplasia also occurs. The differential pattern of adiposity in patients with CS and GC-O highlights that bone marrow adipocytes and their progenitors may respond differently in these two GC-mediated bone diseases.
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Affiliation(s)
- Nina N. Sørensen
- Research Unit of Pathology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Pathology, Odense University Hospital, Odense, Denmark
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Christina M. Andreasen
- Research Unit of Pathology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Pathology, Odense University Hospital, Odense, Denmark
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Danish Spatial Imaging Consortium (DanSIC), Denmark
| | - Pia R. Jensen
- Clinical Cell Biology (KCB), Vejle/Lillebaelt Hospital, Institute of Regional Health Research (IRS), University of Southern Denmark, Vejle, Denmark
| | - Ellen M. Hauge
- Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Jens Bollerslev
- Section of Specialized Endocrinology, Oslo University Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Jean-Marie Delaissé
- Research Unit of Pathology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Pathology, Odense University Hospital, Odense, Denmark
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Moustapha Kassem
- Department of Cellular and Molecular Medicine, Novo Nordisk Foundation Center for Stem Cell Biology (DanStem), University of Copenhagen, Copenhagen, Denmark
- Molecular Endocrinology & Stem Cell Research Unit (KMEB), Department of Endocrinology and Metabolism, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - Abbas Jafari
- Department of Cellular and Molecular Medicine, Novo Nordisk Foundation Center for Stem Cell Biology (DanStem), University of Copenhagen, Copenhagen, Denmark
- Molecular Endocrinology & Stem Cell Research Unit (KMEB), Department of Endocrinology and Metabolism, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - Marta Diaz-delCastillo
- Danish Spatial Imaging Consortium (DanSIC), Denmark
- Department of Forensic Medicine, Aarhus University, Aarhus, Denmark
| | - Thomas L. Andersen
- Research Unit of Pathology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Pathology, Odense University Hospital, Odense, Denmark
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Danish Spatial Imaging Consortium (DanSIC), Denmark
- Department of Forensic Medicine, Aarhus University, Aarhus, Denmark
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6
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Ma Q, Miri Z, Haugen HJ, Moghanian A, Loca D. Significance of mechanical loading in bone fracture healing, bone regeneration, and vascularization. J Tissue Eng 2023; 14:20417314231172573. [PMID: 37251734 PMCID: PMC10214107 DOI: 10.1177/20417314231172573] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/13/2023] [Indexed: 05/31/2023] Open
Abstract
In 1892, J.L. Wolff proposed that bone could respond to mechanical and biophysical stimuli as a dynamic organ. This theory presents a unique opportunity for investigations on bone and its potential to aid in tissue repair. Routine activities such as exercise or machinery application can exert mechanical loads on bone. Previous research has demonstrated that mechanical loading can affect the differentiation and development of mesenchymal tissue. However, the extent to which mechanical stimulation can help repair or generate bone tissue and the related mechanisms remain unclear. Four key cell types in bone tissue, including osteoblasts, osteoclasts, bone lining cells, and osteocytes, play critical roles in responding to mechanical stimuli, while other cell lineages such as myocytes, platelets, fibroblasts, endothelial cells, and chondrocytes also exhibit mechanosensitivity. Mechanical loading can regulate the biological functions of bone tissue through the mechanosensor of bone cells intraosseously, making it a potential target for fracture healing and bone regeneration. This review aims to clarify these issues and explain bone remodeling, structure dynamics, and mechano-transduction processes in response to mechanical loading. Loading of different magnitudes, frequencies, and types, such as dynamic versus static loads, are analyzed to determine the effects of mechanical stimulation on bone tissue structure and cellular function. Finally, the importance of vascularization in nutrient supply for bone healing and regeneration was further discussed.
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Affiliation(s)
- Qianli Ma
- Department of Biomaterials, Institute
of Clinical Dentistry, University of Oslo, Norway
- Department of Immunology, School of
Basic Medicine, Fourth Military Medical University, Xi’an, PR China
| | - Zahra Miri
- Department of Materials Engineering,
Isfahan University of Technology, Isfahan, Iran
| | - Håvard Jostein Haugen
- Department of Biomaterials, Institute
of Clinical Dentistry, University of Oslo, Norway
| | - Amirhossein Moghanian
- Department of Materials Engineering,
Imam Khomeini International University, Qazvin, Iran
| | - Dagnjia Loca
- Rudolfs Cimdins Riga Biomaterials
Innovations and Development Centre, Institute of General Chemical Engineering,
Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga,
Latvia
- Baltic Biomaterials Centre of
Excellence, Headquarters at Riga Technical University, Riga, Latvia
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7
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Lecoutre S, Lambert M, Drygalski K, Dugail I, Maqdasy S, Hautefeuille M, Clément K. Importance of the Microenvironment and Mechanosensing in Adipose Tissue Biology. Cells 2022; 11:cells11152310. [PMID: 35954152 PMCID: PMC9367348 DOI: 10.3390/cells11152310] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/19/2022] [Accepted: 07/23/2022] [Indexed: 11/16/2022] Open
Abstract
The expansion of adipose tissue is an adaptive mechanism that increases nutrient buffering capacity in response to an overall positive energy balance. Over the course of expansion, the adipose microenvironment undergoes continual remodeling to maintain its structural and functional integrity. However, in the long run, adipose tissue remodeling, typically characterized by adipocyte hypertrophy, immune cells infiltration, fibrosis and changes in vascular architecture, generates mechanical stress on adipose cells. This mechanical stimulus is then transduced into a biochemical signal that alters adipose function through mechanotransduction. In this review, we describe the physical changes occurring during adipose tissue remodeling, and how they regulate adipose cell physiology and promote obesity-associated dysfunction in adipose tissue.
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Affiliation(s)
- Simon Lecoutre
- Nutrition and Obesities: Systemic Approaches Research Group (Nutri-Omics), Sorbonne Université, INSERM, F-75013 Paris, France; (S.L.); (K.D.); (I.D.)
| | - Mélanie Lambert
- Labex Inflamex, Université Sorbonne Paris Nord, INSERM, F-93000 Bobigny, France;
| | - Krzysztof Drygalski
- Nutrition and Obesities: Systemic Approaches Research Group (Nutri-Omics), Sorbonne Université, INSERM, F-75013 Paris, France; (S.L.); (K.D.); (I.D.)
| | - Isabelle Dugail
- Nutrition and Obesities: Systemic Approaches Research Group (Nutri-Omics), Sorbonne Université, INSERM, F-75013 Paris, France; (S.L.); (K.D.); (I.D.)
| | - Salwan Maqdasy
- Department of Medicine (H7), Karolinska Institutet Hospital, C2-94, 14186 Stockholm, Sweden;
| | - Mathieu Hautefeuille
- Laboratoire de Biologie du Développement (UMR 7622), IBPS, Sorbonne Université, F-75005 Paris, France;
| | - Karine Clément
- Nutrition and Obesities: Systemic Approaches Research Group (Nutri-Omics), Sorbonne Université, INSERM, F-75013 Paris, France; (S.L.); (K.D.); (I.D.)
- Assistance Publique Hôpitaux de Paris, Nutrition Department, CRNH Ile-de-France, Pitié-Salpêtrière Hospital, F-75013 Paris, France
- Correspondence: or
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8
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Man J, Graham T, Squires-Donelly G, Laslett AL. The effects of microgravity on bone structure and function. NPJ Microgravity 2022; 8:9. [PMID: 35383182 PMCID: PMC8983659 DOI: 10.1038/s41526-022-00194-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 03/04/2022] [Indexed: 12/22/2022] Open
Abstract
Humans are spending an increasing amount of time in space, where exposure to conditions of microgravity causes 1-2% bone loss per month in astronauts. Through data collected from astronauts, as well as animal and cellular experiments conducted in space, it is evident that microgravity induces skeletal deconditioning in weight-bearing bones. This review identifies contentions in current literature describing the effect of microgravity on non-weight-bearing bones, different bone compartments, as well as the skeletal recovery process in human and animal spaceflight data. Experiments in space are not readily available, and experimental designs are often limited due to logistical and technical reasons. This review introduces a plethora of on-ground research that elucidate the intricate process of bone loss, utilising technology that simulates microgravity. Observations from these studies are largely congruent to data obtained from spaceflight experiments, while offering more insights behind the molecular mechanisms leading to microgravity-induced bone loss. These insights are discussed herein, as well as how that knowledge has contributed to studies of current therapeutic agents. This review also points out discrepancies in existing data, highlighting knowledge gaps in our current understanding. Further dissection of the exact mechanisms of microgravity-induced bone loss will enable the development of more effective preventative and therapeutic measures to protect against bone loss, both in space and possibly on ground.
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Affiliation(s)
- Joey Man
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria, 3168, Australia.
- Australian Regenerative Medicine Institute, Monash University, Melbourne, Victoria, 3800, Australia.
- Space Technology Future Science Platform, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, Victoria, 3168, Australia.
| | - Taylor Graham
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria, 3168, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, Victoria, 3800, Australia
| | - Georgina Squires-Donelly
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria, 3168, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, Victoria, 3800, Australia
| | - Andrew L Laslett
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria, 3168, Australia.
- Australian Regenerative Medicine Institute, Monash University, Melbourne, Victoria, 3800, Australia.
- Space Technology Future Science Platform, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, Victoria, 3168, Australia.
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9
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Stucky A, Gao L, Li SC, Tu L, Luo J, Huang X, Chen X, Li X, Park TH, Cai J, Kabeer MH, Plant AS, Sun L, Zhang X, Zhong JF. Molecular Characterization of Differentiated-Resistance MSC Subclones by Single-Cell Transcriptomes. Front Cell Dev Biol 2022; 10:699144. [PMID: 35356283 PMCID: PMC8959432 DOI: 10.3389/fcell.2022.699144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 02/14/2022] [Indexed: 11/25/2022] Open
Abstract
Background: The mechanism of tumorigenicity potentially evolved in mesenchymal stem cells (MSCs) remains elusive, resulting in inconsistent clinical application efficacy. We hypothesized that subclones in MSCs contribute to their tumorgenicity, and we approached MSC-subclones at the single-cell level. Methods: MSCs were cultured in an osteogenic differentiation medium and harvested on days 12, 19, and 25 for cell differentiation analysis using Alizarin Red and followed with the single-cell transcriptome. Results: Single-cell RNA-seq analysis reveals a discrete cluster of MSCs during osteogenesis, including differentiation-resistant MSCs (DR-MSCs), differentiated osteoblasts (DO), and precursor osteoblasts (PO). The DR-MSCs population resembled cancer initiation cells and were subjected to further analysis of the yes associated protein 1 (YAP1) network. Verteporfin was also used for YAP1 inhibition in cancer cell lines to confirm the role of YAP1 in MSC--involved tumorigenicity. Clinical data from various cancer types were analyzed to reveal relationships among YAP1, OCT4, and CDH6 in MSC--involved tumorigenicity. The expression of cadherin 6 (CDH6), octamer-binding transcription factor 4 (OCT4), and YAP1 expression was significantly upregulated in DR-MSCs compared to PO and DO. YAP1 inhibition by Verteporfin accelerated the differentiation of MSCs and suppressed the expression of YAP1, CDH6, and OCT4. A survey of 56 clinical cohorts revealed a high degree of co-expression among CDH6, YAP1, and OCT4 in various solid tumors. YAP1 inhibition also down-regulated HeLa cell viability and gradually inhibited YAP1 nuclear localization while reducing the transcription of CDH6 and OCT4. Conclusions: We used single-cell sequencing to analyze undifferentiated MSCs and to discover a carcinogenic pathway in single-cell MSCs of differentiated resistance subclones.
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Affiliation(s)
- Andres Stucky
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, CA, United States
| | - Li Gao
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Shengwen Calvin Li
- Neuro-oncology and Stem Cell Research Laboratory, CHOC Children’s Research Institute, Center for Neuroscience Research, Children’s Hospital of Orange County (CHOC), Orange, CA, United States
- Department of Neurology, Irvine School of Medicine, University of California, Irvine, CA, United States
- *Correspondence: Shengwen Calvin Li, ; Lan Sun, ; Xi Zhang,
| | - Lingli Tu
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, CA, United States
- Department of Oncology, Bishan, The People’s Hospital of Bishan District, Bishan, Chongqing, China
| | - Jun Luo
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Xi Huang
- Department of Hematology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xuelian Chen
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, CA, United States
| | - Xiaoqing Li
- Department of Oncology, Bishan, The People’s Hospital of Bishan District, Bishan, Chongqing, China
| | - Tiffany H. Park
- School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Jin Cai
- Department of Oral and Maxillofacial Surgery, Zhuhai People’s Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, China
| | - Mustafa H. Kabeer
- Pediatric Surgery, CHOC Children’s Hospital, Department of Surgery, Irvine School of Medicine, University of California, Irvine, CA, United States
| | - Ashley S. Plant
- Division of Pediatric Oncology, Children’s Hospital of Orange County, Orange, CA, United States
| | - Lan Sun
- Department of Oncology, Bishan, The People’s Hospital of Bishan District, Bishan, Chongqing, China
- *Correspondence: Shengwen Calvin Li, ; Lan Sun, ; Xi Zhang,
| | - Xi Zhang
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, China
- *Correspondence: Shengwen Calvin Li, ; Lan Sun, ; Xi Zhang,
| | - Jiang F. Zhong
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, CA, United States
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10
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Dissociation of Bone Resorption and Formation in Spaceflight and Simulated Microgravity: Potential Role of Myokines and Osteokines? Biomedicines 2022; 10:biomedicines10020342. [PMID: 35203551 PMCID: PMC8961781 DOI: 10.3390/biomedicines10020342] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 11/16/2022] Open
Abstract
The dissociation of bone formation and resorption is an important physiological process during spaceflight. It also occurs during local skeletal unloading or immobilization, such as in people with neuromuscular disorders or those who are on bed rest. Under these conditions, the physiological systems of the human body are perturbed down to the cellular level. Through the absence of mechanical stimuli, the musculoskeletal system and, predominantly, the postural skeletal muscles are largely affected. Despite in-flight exercise countermeasures, muscle wasting and bone loss occur, which are associated with spaceflight duration. Nevertheless, countermeasures can be effective, especially by preventing muscle wasting to rescue both postural and dynamic as well as muscle performance. Thus far, it is largely unknown how changes in bone microarchitecture evolve over the long term in the absence of a gravity vector and whether bone loss incurred in space or following the return to the Earth fully recovers or partly persists. In this review, we highlight the different mechanisms and factors that regulate the humoral crosstalk between the muscle and the bone. Further we focus on the interplay between currently known myokines and osteokines and their mutual regulation.
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11
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Martinez IK, Bhanu B, Zur Nieden NI. Video-based calcification assay: A novel method for kinetic analysis of osteogenesis in live cultures. MethodsX 2021; 8:101265. [PMID: 34434787 PMCID: PMC8374304 DOI: 10.1016/j.mex.2021.101265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/04/2021] [Indexed: 11/30/2022] Open
Abstract
Traditional methods of quantifying osteoblast calcification in culture require the use of calcium sensitive dyes, such as Arsenazo III or Alizarin Red S, which have been successfully used for decades to assess osteogenesis. Because these dyes elicit a colorimetric change when reacted with a cell lysate and are cytotoxic to live cells, they forfeit the ability to trace calcification longitudinally over time. Here, we demonstrate that image analysis and quantification of calcification can be performed from a series of time-lapse images acquired from videos. This method capitalizes on the unique facet of the mineralized extracellular matrix to appear black when viewed with phase contrast optics. This appearance of calcified areas had been previously documented to be characteristic to the formation of bone nodules in vitro. Due to this distinguishable appearance, extracting the information corresponding to calcification through segmentation allowed us to threshold only the pixels that comprise the mineralized areas in the image. Ultimately, this method can be used to quantify calcification yield, rates and kinetics facilitating the analyses of bone-supportive properties of growth factors and morphogens as well as of adverse effects elicited by toxicants. It may also be used on images that were acquired manually.The method is less error-prone than absorption-based assays since it takes longitudinal measurements from the same cultures It is cost effective as it foregoes the use of calcium-sensitive dyes It is automatable and amenable to high-throughput and thus allows the concurrent quantification of multiple parameters of differentiation
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Affiliation(s)
- Ivann Kc Martinez
- Department of Molecular, Cell & Systems Biology and Stem Cell Center, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, CA, 92521, USA.,IGERT Graduate Program in Video Bioinformatics and Cell, Molecular Developmental Biology Graduate Program, University of California Riverside, Riverside, CA, 92521, USA
| | - Bir Bhanu
- IGERT Graduate Program in Video Bioinformatics and Cell, Molecular Developmental Biology Graduate Program, University of California Riverside, Riverside, CA, 92521, USA.,Center for Research in Intelligent Systems, Bourns College of Engineering, University of California Riverside, Riverside, CA, 92521, USA
| | - Nicole I Zur Nieden
- Department of Molecular, Cell & Systems Biology and Stem Cell Center, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, CA, 92521, USA.,IGERT Graduate Program in Video Bioinformatics and Cell, Molecular Developmental Biology Graduate Program, University of California Riverside, Riverside, CA, 92521, USA.,Environmental Toxicology Graduate Program, University of California Riverside, Riverside, CA, 92521, USA
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12
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Kornel A, Den Hartogh DJ, Klentrou P, Tsiani E. Role of the Myokine Irisin on Bone Homeostasis: Review of the Current Evidence. Int J Mol Sci 2021; 22:9136. [PMID: 34502045 PMCID: PMC8430535 DOI: 10.3390/ijms22179136] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/16/2021] [Accepted: 08/19/2021] [Indexed: 02/07/2023] Open
Abstract
Bone is a highly dynamic tissue that is constantly adapting to micro-changes to facilitate movement. When the balance between bone building and resorption shifts more towards bone resorption, the result is reduced bone density and mineralization, as seen in osteoporosis or osteopenia. Current treatment strategies aimed to improve bone homeostasis and turnover are lacking in efficacy, resulting in the search for new preventative and nutraceutical treatment options. The myokine irisin, since its discovery in 2012, has been shown to play an important role in many tissues including muscle, adipose, and bone. Evidence indicate that irisin is associated with increased bone formation and decreased bone resorption, leading to reduced risk of osteoporosis in post-menopausal women. In addition, low serum irisin levels have been found in individuals with osteoporosis and osteopenia. Irisin targets key signaling proteins, promoting osteoblastogenesis and reducing osteoclastogenesis. The present review summarizes the existing evidence regarding the effects of irisin on bone homeostasis.
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Affiliation(s)
- Amanda Kornel
- Department of Health Sciences, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada; (A.K.); (D.J.D.H.)
| | - Danja J. Den Hartogh
- Department of Health Sciences, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada; (A.K.); (D.J.D.H.)
- Centre for Bone and Muscle Health, Brock University, St. Catharines, ON L2S 3A1, Canada;
| | - Panagiota Klentrou
- Centre for Bone and Muscle Health, Brock University, St. Catharines, ON L2S 3A1, Canada;
- Department of Kinesiology, Brock University, St. Catharines, ON L2S 3A1, Canada
| | - Evangelia Tsiani
- Department of Health Sciences, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada; (A.K.); (D.J.D.H.)
- Centre for Bone and Muscle Health, Brock University, St. Catharines, ON L2S 3A1, Canada;
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13
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Tan L, Tran L, Ferreyra S, Moran JA, Skovgaard Z, Trujillo A, ibili E, Zhao Y. Downregulation of SUV39H1 and CITED2 Exerts Additive Effect on Promoting Adipogenic Commitment of Human Mesenchymal Stem Cells. Stem Cells Dev 2021; 30:485-501. [PMID: 33691475 PMCID: PMC8106253 DOI: 10.1089/scd.2020.0190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 03/10/2021] [Indexed: 11/12/2022] Open
Abstract
Human adipogenesis is the process through which uncommitted human mesenchymal stem cells (hMSCs) differentiate into adipocytes. Through a siRNA-based high-throughput screen that identifies adipogenic regulators whose expression knockdown leads to enhanced adipogenic differentiation of hMSCs, two new regulators, SUV39H1, a histone methyltransferase that catalyzes H3K9Me3, and CITED2, a CBP/p300-interacting transactivator with Glu/Asp-rich carboxy-terminal domain 2 were uncovered. Both SUV39H1 and CITED2 are normally downregulated during adipogenic differentiation of hMSCs. Further expression knockdown induced by siSUV39H1 or siCITED2 at the adipogenic initiation stage significantly enhanced adipogenic differentiation of hMSCs as compared with siControl treatment, with siSUV39H1 acting by both accelerating fat accumulation in individual adipocytes and increasing the total number of committed adipocytes, whereas siCITED2 acting predominantly by increasing the total number of committed adipocytes. In addition, both siSUV39H1 and siCITED2 were able to redirect hMSCs to undergo adipogenic differentiation in the presence of osteogenic inducing media, which normally only induces osteogenic differentiation of hMSCs in the absence of siSUV39H1 or siCITED2. Interestingly, simultaneous knockdown of both SUV39H1 and CITED2 resulted in even greater levels of adipogenic differentiation of hMSCs and expression of CEBPα and PPARγ, two master regulators of adipogenesis, as compared with those elicited by single gene knockdown. Furthermore, the effects of co-knockdown were equivalent to the additive effect of individual gene knockdown. Taken together, this study demonstrates that SUV39H1 and CITED2 are both negative regulators of human adipogenesis, and downregulation of both genes exerts an additive effect on promoting adipogenic differentiation of hMSCs through augmented commitment.
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Affiliation(s)
- Lun Tan
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, USA
| | - Linh Tran
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, USA
| | - Stephanie Ferreyra
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, USA
| | - Jose A. Moran
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, USA
| | - Zachary Skovgaard
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, USA
| | - Amparo Trujillo
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, USA
| | - Esra ibili
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, USA
| | - Yuanxiang Zhao
- Biological Sciences Department, California State Polytechnic University at Pomona, Pomona, California, USA
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14
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Park KR, Lee JY, Cho M, Yun HM. Ziyuglycoside I Upregulates RUNX2 through ERK1/2 in Promoting Osteoblast Differentiation and Bone Mineralization. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2021; 49:883-900. [PMID: 33829967 DOI: 10.1142/s0192415x21500427] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Sanguisorba officinalis L. (Rosaceae) is a perennial herbaceous plant and its roots have been used as an important traditional medicine for over 2000 years. Ziyuglycoside I (Ziyu), an active compound isolated from the roots of S. officinalis L., has shown biological effects such as anti-oxidant, antiviral, and antiwrinkle activities. This study aimed to elucidate the underlying mechanisms of action of Ziyu on cytotoxicity, migration, and differentiation of pre-osteoblasts. Herein, at concentrations ranging from 1 to 100 [Formula: see text]M, Ziyu was not cytotoxic against pre-osteoblasts. Alkaline phosphatase activity assay and staining, and migration assay showed that Ziyu increased cell migration and promoted early osteoblast differentiation, followed by the enhancement of mineralized nodule formation in a dose-dependent manner, as indicated by Alizarin Red S staining. In addition, Ziyu increased the protein levels of runt-related transcription factor 2 (RUNX2) during osteoblast differentiation, whereas it did not affect the phosphorylation of Smad1/5/8 and GSK3b and expression of [Formula: see text]-catenin. Ziyu also activated ERK1/2 and mitogen-activated protein kinase during osteoblast differentiation, and ERK1/2 inhibitor attenuated Ziyu-mediated RUNX2 expression and nuclear accumulation. Furthermore, Ziyu-mediated early and late osteoblast differentiation was significantly suppressed by the inhibition of ERK1/2, which was accompanied by attenuation in the mRNA levels of osteoblast-related genes including bone sialoprotein, osteopontin, and osteocalcin. Taken together, the findings of this study provide evidence that Ziyu promotes cell migration, osteoblast differentiation, and bone mineralization and suggest a potential role for Ziyu in the treatment of bone diseases.
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Affiliation(s)
- Kyung-Ran Park
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Kyung Hee University, Seoul 02453, Republic of Korea
| | - Joon Yeop Lee
- National Institute for Korean Medicine Development, Gyeongsan 38540, Republic of Korea
| | - MyoungLae Cho
- National Institute for Korean Medicine Development, Gyeongsan 38540, Republic of Korea
| | - Hyung-Mun Yun
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Kyung Hee University, Seoul 02453, Republic of Korea
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15
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Jiang X, Chen W, Su H, Shen F, Xiao W, Sun W. Puerarin facilitates osteogenesis in steroid-induced necrosis of rabbit femoral head and osteogenesis of steroid-induced osteocytes via miR-34a upregulation. Cytokine 2021; 143:155512. [PMID: 33824083 DOI: 10.1016/j.cyto.2021.155512] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 03/03/2021] [Accepted: 03/19/2021] [Indexed: 12/26/2022]
Abstract
The present study investigated the effect of puerarin on promoting the osteogenesis in steroid-induced necrosis of the femoral head (SONFH). New Zealand rabbits were administrated with horse serum and methylprednisolone (MPS) for establishing SONFH in vivo model, which was then treated with puerarin treatment. Histo-morphological changes in the femoral head were examined by hematoxylin-eosin staining. Osteoblasts were isolated from healthy rabbits and treated by individual or combined administration of dexamethasone and puerarin. Osteoblast viability was measured by CCK-8 assay. Mineralized nodule formation was evaluated by alizarin red assay. Expressions of RUNX family transcription factor 2 (RUNX2), Type-I collagen α 1 (COL1A1), ALP and miR-34a in the femoral head were determined by qRT-PCR and Western blot. Puerarin attenuated the effect of SONFH on promoting histopathological abnormalities and counteracted SONFH inhibition on the expressions of ALP, RUNX2, COL1A1 and miR-34a in the rabbits. Rabbit osteoblasts were successfully isolated, as they showed red mineralized nodules. Dexamethasone exposure decreased osteoblast viability, which was increased by puerarin treatment. Furthermore, puerarin treatment attenuated dexamethasone-induced inhibition on the viability, osteoblastic differentiation, and the expressions of ALP, RUNX2, COL1A1 and miR-34a in the osteoblasts. Puerarin facilitated osteogenesis of steroid-induced necrosis of rabbit femoral head and osteogenesis of steroid-induced osteocytes via miR-34a upregulation.
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Affiliation(s)
- Xin Jiang
- Department of No. 5 Orthopedic Surgery, The Third Affiliated Hospital of Qiqihar Medical University, China
| | - Wenjing Chen
- Department of Pathology, The First Hospital of Qiqihar Affiliated Qiqihar Hospital, Southern Medical University, China
| | - Hang Su
- Department of No. 5 Orthopedic Surgery, The Third Affiliated Hospital of Qiqihar Medical University, China
| | - Fuguo Shen
- Department of No. 5 Orthopedic Surgery, The Third Affiliated Hospital of Qiqihar Medical University, China
| | - Wenlong Xiao
- Department of No. 5 Orthopedic Surgery, The Third Affiliated Hospital of Qiqihar Medical University, China
| | - Wencai Sun
- Department of No. 5 Orthopedic Surgery, The Third Affiliated Hospital of Qiqihar Medical University, China.
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16
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Limonoid Triterpene, Obacunone Increases Runt-Related Transcription Factor 2 to Promote Osteoblast Differentiation and Function. Int J Mol Sci 2021; 22:ijms22052483. [PMID: 33801166 PMCID: PMC7957678 DOI: 10.3390/ijms22052483] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/13/2021] [Accepted: 02/17/2021] [Indexed: 12/19/2022] Open
Abstract
Root bark of Dictamnus dasycarpus Turcz. has been widely used as a traditional medicine and is a well-known anti-inflammatory agent. We isolated limonoid triterpene, obacunone (Obac) from the dried root bark of D. dasycarpus. Obac has been reported to exhibit varieties of biological activities including anti-inflammatory, anti-cancer, and anti-oxidant effects. This study aimed to investigate the beneficial effects and biological mechanisms of Obac in osteoblast differentiation and bone matrix mineralization. In the present study, Obac at concentrations ranging from 1 to 100 μM showed no proliferation effects in MC3T3-E1. The treatment of Obac (1 and 10 μM) increased wound healing and migration rates in a dose-dependent manner. Alkaline phosphatase (ALP) staining and activity showed that Obac (1 and 10 μM) enhanced early osteoblast differentiation in a dose-dependent manner. Obac also increased late osteoblast differentiation in a dose-dependent manner, as indicated by the mineralized nodule formation of ARS staining. The effects of Obac on osteoblast differentiation was validated by the levels of mRNAs encoding the bone differentiation markers, including Alp, bone sialoprotein (Bsp), osteopontin (Opn), and osteocalcin (Ocn). Obac increased the expression of bone morphogenetic protein (BMP), and the phosphorylation of smad1/5/8, and the expression of runt-related transcription factor 2 (RUNX2); Obac also inhibited GSK3β and upregulated the protein level of β-catenin in a dose-dependent manner during osteoblast differentiation. Obac-mediated osteoblast differentiation was attenuated by a BMP2 inhibitor, Noggin and a Wnt/β-catenin inhibitor, Dickkopf-1 (Dkk1) with the abolishment of RUNX2 expression and nuclear accumulation by Obac. Taken together, the findings of this study demonstrate that Obac has pharmacological and biological activates to promote osteoblast differentiation and bone mineralization through BMP2, β-catenin, and RUNX2 pathways, and suggest that Obac might be a therapeutic effect for the treatment and prevention of bone diseases such as osteoporosis and periodontitis.
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17
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Ait Oumghar I, Barkaoui A, Chabrand P. Toward a Mathematical Modeling of Diseases' Impact on Bone Remodeling: Technical Review. Front Bioeng Biotechnol 2020; 8:584198. [PMID: 33224935 PMCID: PMC7667152 DOI: 10.3389/fbioe.2020.584198] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/30/2020] [Indexed: 12/18/2022] Open
Abstract
A wide variety of bone diseases have hitherto been discovered, such as osteoporosis, Paget's disease, osteopetrosis, and metastatic bone disease, which are not well defined in terms of changes in biochemical and mechanobiological regulatory factors. Some of these diseases are secondary to other pathologies, including cancer, or to some clinical treatments. To better understand bone behavior and prevent its deterioration, bone biomechanics have been the subject of mathematical modeling that exponentially increased over the last years. These models are becoming increasingly complex. The current paper provides a timely and critical analysis of previously developed bone remodeling mathematical models, particularly those addressing bone diseases. Besides, mechanistic pharmacokinetic/pharmacodynamic (PK/PD) models, which englobe bone disease and its treatment's effect on bone health. Therefore, the review starts by presenting bone remodeling cycle and mathematical models describing this process, followed by introducing some bone diseases and discussing models of pathological mechanisms affecting bone, and concludes with exhibiting the available bone treatment procedures considered in the PK/PD models.
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Affiliation(s)
- Imane Ait Oumghar
- Laboratoire des Energies Renouvelables et Matériaux Avancés (LERMA), Université Internationale de Rabat, Rabat-Sala El Jadida, Morocco
- Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, Marseille, France
| | - Abdelwahed Barkaoui
- Laboratoire des Energies Renouvelables et Matériaux Avancés (LERMA), Université Internationale de Rabat, Rabat-Sala El Jadida, Morocco
| | - Patrick Chabrand
- Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, Marseille, France
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18
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Kim KM, Son HE, Min HY, Jang WG. Vitexin enhances osteoblast differentiation through phosphorylation of Smad and expression of Runx2 at in vitro and ex vivo. Mol Biol Rep 2020; 47:8809-8817. [PMID: 33118104 DOI: 10.1007/s11033-020-05929-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 10/17/2020] [Indexed: 01/23/2023]
Abstract
Vitexin (apigenin-8-C-d-glucopyranoside) is a flavonoid isolated from natural sources. It has been employed as an anti-oxidant, anti-inflammatory, and anti-cancer agent, and is used as a traditional Chinese medicine to treat a variety of illnesses. The present study investigated the effect of vitexin on osteoblast differentiation of C3H10T1/2 mesenchymal stem cells, MC3T3-E1 preosteoblast, mouse calvarial primary cells, and primary bone marrow stem cells (BMSCs). RT-PCR and quantitative PCR demonstrated that vitexin increased mRNA expression of the osteogenic genes distal-less homeobox 5 (Dlx5) and Runxt-related transcription factor 2 (Runx2). Vitexin also increased the Dlx5 and Runx2 protein levels, Smad1/5/9 phosphorylation, and alkaline phosphatase (ALP) activity. In addition, vitexin increased Runx2-luciferase activity. Moreover, knockdown of Runx2 attenuated the increase in ALP activity induced by vitexin. These results demonstrate that vitexin enhances osteoblast differentiation via Runx2.
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Affiliation(s)
- Kyeong-Min Kim
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongbuk, 38453, Republic of Korea.,Research a of Anti-Aging, Daegu University, Gyeongbuk, 38453, Republic of Korea
| | - Hyo-Eun Son
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongbuk, 38453, Republic of Korea.,Research a of Anti-Aging, Daegu University, Gyeongbuk, 38453, Republic of Korea
| | - Hyeon-Young Min
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongbuk, 38453, Republic of Korea.,Research a of Anti-Aging, Daegu University, Gyeongbuk, 38453, Republic of Korea
| | - Won-Gu Jang
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongbuk, 38453, Republic of Korea. .,Research a of Anti-Aging, Daegu University, Gyeongbuk, 38453, Republic of Korea.
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19
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TAŞLI PN, YALÇIN ÜLKER GM, CUMBUL A, USLU Ü, YILMAZ Ş, BOZKURT BT, ŞAHİN F. In vitro tooth-shaped scaffold construction by mimicking late bell stage. Turk J Biol 2020; 44:315-326. [PMID: 33110369 PMCID: PMC7585158 DOI: 10.3906/biy-2002-19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 10/02/2020] [Indexed: 01/21/2023] Open
Abstract
Neogenesis of osseous and ligamentous interfacial structures is essential for the regeneration of large oral or craniofacial defects. However, current treatment strategies are inadequate in renewing supporting tissues of teeth after trauma, chronic infections or surgical resection. Combined use of 3D scaffolds with stem cells became a promising treatment option for these injuries. Matching different scaffolding materials with different tissues can induce the correct cytokines and the differentiation of cells corresponding to that particular tissue. In this study, a hydroxyapatite (HA) based scaffold was used together with human adipose stem cells (hASCs), human bone marrow stem cells (hBMSCs) and gingival epithelial cells to mimic human tooth dentin-pulp-enamel tissue complexes and model an immature tooth at the late bell stage in vitro. Characteristics of the scaffold were determined via SEM, FTIR, pore size and density measurements. Changes in gene expression, protein secretions and tissue histology resulting from cross-interactions of different dental tissues grown in the system were shown. Classical tooth tissues such as cementum, pulp and bone like tissues were formed within the scaffold. Our study suggests that a HA-based scaffold with different cell lineages can successfully mimic early stages of tooth development and can be a valuable tool for hard tissue engineering.
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Affiliation(s)
- Pakize Neslihan TAŞLI
- Department of Genetic and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, İstanbulTurkey
| | - Gül Merve YALÇIN ÜLKER
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, İstanbul Okan University, İstanbulTurkey
| | - Alev CUMBUL
- Department of Histology and Embryology, Faculty of Medicine, Yeditepe University, İstanbulTurkey
| | - Ünal USLU
- Department of Histology and Embryology, Faculty of Medicine, Yeditepe University, İstanbulTurkey
| | - Şahin YILMAZ
- Department of Genetic and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, İstanbulTurkey
| | - Batuhan Turhan BOZKURT
- Department of Genetic and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, İstanbulTurkey
| | - Fikrettin ŞAHİN
- Department of Genetic and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, İstanbulTurkey
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20
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Sapkota M, Gao M, Li L, Yang M, Shrestha SK, Choi H, Soh Y. Macrolactin A protects against LPS-induced bone loss by regulation of bone remodeling. Eur J Pharmacol 2020; 883:173305. [PMID: 32673673 DOI: 10.1016/j.ejphar.2020.173305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 12/19/2022]
Abstract
An imbalance between bone resorption and bone formation leads to several kinds of bone diseases such as rheumatoid arthritis, osteoporosis and Paget's disease. The imbalance between bone formations relative to bone resorption is responsible in bone remodeling. Several studies have suggested that macrolactin A (MA) has potent anti-inflammatory, anti-cancer and anti-angiogenic effects in various cell types. We investigate whether macrolactin A (MA) could inhibit bone loss and enhance bone formation. We used bone marrow monocytes/macrophages (BMMs) cells to study osteoclast activity and MC3T3-E1 cells to study osteoblast activity. MA suppressed tartrate resistant acid phosphatase (TRAP) positive multinucleated cells in a concentration-dependent manner, as well as at a specific time point. MA markedly reduced bone resorption activity and F-actin ring formation. Moreover, MA markedly suppressed receptor activator of nuclear factor k-B ligand (RANKL)-induced osteoclastogenic marker genes and transcription factors in-vitro. MA repressed osteoclast differentiation via activation of the phosphoinositide kinase-3/Akt, extracellular signal-regulated kinase 1/2 (ERK 1/2), c-Jun N-terminal kinase (JNK), nuclear factor of activated T cells, cytoplasmic 1 (NFATc1) and c-Fos signaling pathways. MA enhanced pre-osteoblast cell differentiation on mineralization activity, alkaline phosphatase (ALP) activity, and the expression of osteoblastogenic markers including osterix, RUNX-2, SMAD4, BMP-2, and ALP. Importantly, MA repressed lipopolysaccharide (LPS)-induced inflammatory bone loss in mice as shown by TRAP staining of femurs and μCT analysis. Therefore, MA could be a promising candidate for the inhibition and management of osteoporosis, arthritis, and bone lytic diseases.
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Affiliation(s)
- Mahesh Sapkota
- School of Pharmacy, Jeonbuk National University, Jeonju, 561-756, South Korea
| | - Ming Gao
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, South Korea
| | - Liang Li
- School of Pharmacy, Jeonbuk National University, Jeonju, 561-756, South Korea
| | - Ming Yang
- School of Pharmacy, Jeonbuk National University, Jeonju, 561-756, South Korea
| | | | - Hyukjae Choi
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, South Korea.
| | - Yunjo Soh
- School of Pharmacy, Jeonbuk National University, Jeonju, 561-756, South Korea.
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21
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Yang YY, Huang M, Wang Y. Targeted Proteomic Analysis of Small GTPases in Murine Adipogenesis. Anal Chem 2020; 92:6756-6763. [PMID: 32237738 DOI: 10.1021/acs.analchem.0c00974] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Small GTPases are essential signaling molecules for regulating glucose uptake in adipose tissues upon insulin stimulation, and this regulation maintains an appropriate range of glycemia. The involvement of small GTPases in adipogenesis, however, has not been systemically investigated. In this study, we applied a high-throughput scheduled multiple-reaction monitoring (MRM) method, along with the use of synthetic stable isotope-labeled peptides, to identify differentially expressed small GTPase proteins during adipogenesis of cultured murine cells. We were able to quantify the relative levels of expression of 55 and 49 small GTPases accompanied by adipogenic differentiation in 3T3-L1 and C3H10T1/2 cells, respectively. When compared with analysis conducted in the data-dependent acquisition (DDA) mode, the MRM-based proteomic platform substantially increased the coverage of the small GTPase proteome. Western blot analysis further corroborated the MRM quantification results for selected small GTPases. Interestingly, overall a significant number of small GTPases were down-regulated during adipogenesis. Among them, the expression levels of Rab32 protein were consistently lower in differentiated adipocytes than the corresponding undifferentiated precursors in both cell lines. Overexpression of Rab32 in 3T3-L1 and C3H10T1/2 cells prior to adipogenesis induction suppressed their differentiation. Together, this is the first comprehensive analysis of the alterations in small GTPase proteome during adipogenesis, and we reveal a previously unrecognized role of Rab32 in adipogenic differentiation.
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Arroyo R, López S, Romo E, Montoya G, Hoz L, Pedraza C, Garfias Y, Arzate H. Carboxy-Terminal Cementum Protein 1-Derived Peptide 4 (cemp1-p4) Promotes Mineralization through wnt/ β-catenin Signaling in Human Oral Mucosa Stem Cells. Int J Mol Sci 2020; 21:E1307. [PMID: 32075221 PMCID: PMC7072908 DOI: 10.3390/ijms21041307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/14/2022] Open
Abstract
Human cementum protein 1 (CEMP1) is known to induce cementoblast and osteoblast differentiation and alkaline phosphatase (ALP) activity in human periodontal ligament-derived cells in vitro and promotes bone regeneration in vivo. CEMP1's secondary structure analysis shows that it has a random-coiled structure and is considered an Intrinsic Disordered Protein (IDP). CEMP1's short peptide sequences mimic the biological capabilities of CEMP1. However, the role and mechanisms of CEMP1's C-terminal-derived synthetic peptide (CEMP1-p4) in the canonical Wnt/β-catenin signaling pathway are yet to be described. Here we report that CEMP1-p4 promotes proliferation and differentiation of Human Oral Mucosa Stem Cells (HOMSCs) by activating the Wnt/β-catenin pathway. CEMP1-p4 stimulation upregulated the expression of β-catenin and glycogen synthase kinase 3 beta (GSK-3B) and activated the transcription factors TCF1/7 and Lymphoid Enhancer binding Factor 1 (LEF1) at the mRNA and protein levels. We found translocation of β-catenin to the nucleus in CEMP1-p4-treated cultures. The peptide also penetrates the cell membrane and aggregates around the cell nucleus. Analysis of CEMP1-p4 secondary structure revealed that it has a random-coiled structure. Its biological activities included the induction to nucleate hydroxyapatite crystals. In CEMP1-p4-treated HOMSCs, ALP activity and calcium deposits increased. Expression of Osterix (OSX), Runt-related transcription factor 2 (RUNX2), Integrin binding sialoproptein (IBSP) and osteocalcin (OCN) were upregulated. Altogether, these data show that CEMP1-p4 plays a direct role in the differentiation of HOMSCs to a "mineralizing-like" phenotype by activating the β-catenin signaling cascade.
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Affiliation(s)
- Rita Arroyo
- Laboratorio de Biología Periodontal, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX 04510, Mexico; (R.A.); (S.L.); (E.R.); (G.M.); (L.H.); (C.P.)
| | - Sonia López
- Laboratorio de Biología Periodontal, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX 04510, Mexico; (R.A.); (S.L.); (E.R.); (G.M.); (L.H.); (C.P.)
| | - Enrique Romo
- Laboratorio de Biología Periodontal, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX 04510, Mexico; (R.A.); (S.L.); (E.R.); (G.M.); (L.H.); (C.P.)
| | - Gonzalo Montoya
- Laboratorio de Biología Periodontal, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX 04510, Mexico; (R.A.); (S.L.); (E.R.); (G.M.); (L.H.); (C.P.)
| | - Lía Hoz
- Laboratorio de Biología Periodontal, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX 04510, Mexico; (R.A.); (S.L.); (E.R.); (G.M.); (L.H.); (C.P.)
| | - Claudia Pedraza
- Laboratorio de Biología Periodontal, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX 04510, Mexico; (R.A.); (S.L.); (E.R.); (G.M.); (L.H.); (C.P.)
| | - Yonathan Garfias
- Departamento de Bioquímica, Facultad de Medicina, UNAM, Universidad Nacional Autónoma de México, CDMX 04510, Mexico;
- Instituto de Oftalmología Conde de Valenciana, CDMX 06800, Mexico
| | - Higinio Arzate
- Laboratorio de Biología Periodontal, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX 04510, Mexico; (R.A.); (S.L.); (E.R.); (G.M.); (L.H.); (C.P.)
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The shift in the balance between osteoblastogenesis and adipogenesis of mesenchymal stem cells mediated by glucocorticoid receptor. Stem Cell Res Ther 2019; 10:377. [PMID: 31805987 PMCID: PMC6896503 DOI: 10.1186/s13287-019-1498-0] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 11/09/2019] [Accepted: 11/18/2019] [Indexed: 12/31/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are multipotent cells capable of differentiating into several tissues, such as bone, cartilage, and fat. Glucocorticoids affect a variety of biological processes such as proliferation, differentiation, and apoptosis of various cell types, including osteoblasts, adipocytes, or chondrocytes. Glucocorticoids exert their function by binding to the glucocorticoid receptor (GR). Physiological concentrations of glucocorticoids stimulate osteoblast proliferation and promote osteogenic differentiation of MSCs. However, pharmacological concentrations of glucocorticoids can not only induce apoptosis of osteoblasts and osteocytes but can also reduce proliferation and inhibit the differentiation of osteoprogenitor cells. Several signaling pathways, including the Wnt, TGFβ/BMP superfamily and Notch signaling pathways, transcription factors, post-transcriptional regulators, and other regulators, regulate osteoblastogenesis and adipogenesis of MSCs mediated by GR. These signaling pathways target key transcription factors, such as Runx2 and TAZ for osteogenesis and PPARγ and C/EBPs for adipogenesis. Glucocorticoid-induced osteonecrosis and osteoporosis are caused by various factors including dysfunction of bone marrow MSCs. Transplantation of MSCs is valuable in regenerative medicine for the treatment of osteonecrosis of the femoral head, osteoporosis, osteogenesis imperfecta, and other skeletal disorders. However, the mechanism of inducing MSCs to differentiate toward the osteogenic lineage is the key to an efficient treatment. Thus, a better understanding of the molecular mechanisms behind the imbalance between GR-mediated osteoblastogenesis and adipogenesis of MSCs would not only help us to identify the pathogenic causes of glucocorticoid-induced osteonecrosis and osteoporosis but also promote future clinical applications for stem cell-based tissue engineering and regenerative medicine. Here, we primarily review the signaling mechanisms involved in adipogenesis and osteogenesis mediated by GR and discuss the factors that control the adipo-osteogenic balance.
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Jayasinghe HG, Madihally SV, Vasquez Y. Formation of Stem Cell Aggregates and Their Differentiation on Surface-Patterned Hydrogels Based on Poly(2-hydroxyethyl Methacrylate). ACS APPLIED BIO MATERIALS 2019; 2:4911-4921. [DOI: 10.1021/acsabm.9b00661] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hasani G. Jayasinghe
- Department of Chemistry, Oklahoma State University, 107 Physical Sciences I, Stillwater, Oklahoma 74078, United States
| | - Sundararajan V. Madihally
- School of Chemical Engineering, Oklahoma State University, EN 420, Stillwater, Oklahoma 74078, United States
| | - Yolanda Vasquez
- Department of Chemistry, Oklahoma State University, 107 Physical Sciences I, Stillwater, Oklahoma 74078, United States
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26
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Wang L, Bai J, Wang Q, Ge G, Lin J, Xu N, Xu C, Xu Y, Wang Y, Geng D. Inhibition of protein phosphatase 2A attenuates titanium-particle induced suppression of bone formation. Int J Biol Macromol 2019; 142:142-151. [PMID: 31521663 DOI: 10.1016/j.ijbiomac.2019.09.084] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 09/11/2019] [Indexed: 12/12/2022]
Abstract
Peri-prosthetic osteolysis (PPO) often generates after total joint arthroplasty, which can bring implant failure and following revision surgery. Wear debris shed from prostheses strongly enhances bone resorption and attenuates bone formation in osteolytic process. We previously proved that suppression of protein phosphatase 2A (PP2A), a major serine-threonine phosphatase, inhibited wear-debris-induced osteoclastogenesis and alleviated local osteolysis. Whether PP2A inhibition facilitates osteoblastogenesis and bone formation in the osteolytic sites remains unclear. Here, we observed that PP2A inhibition with a selective inhibitor attenuated particle-induced bone destruction by accelerating osteoblast differentiation and promoting bone regeneration. Meanwhile, we proved inhibition of PP2A alleviated the inhibition of osteogenic differentiation by titanium particles in MC3T3-E1 cells. In addition, PP2A inhibition increased β-catenin expression and enhanced β-catenin nuclear translocation, compared with that in the vehicle group. ICG-001, a specific inhibitor of β-catenin, was further applied and was found to weaken the effect of PP2A inhibition on β-catenin expression and nuclear translocation. Therefore, we demonstrated PP2A inhibition exerts protective effects on osteogenic differentiation mainly by activating Wnt/β-catenin signaling pathway. Thus, all the results further revealed PP2A could be a promising target for treating PPO and other bone related diseases.
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Affiliation(s)
- Liangliang Wang
- Department of Orthopaedics, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, PR China
| | - Jiaxiang Bai
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, PR China
| | - Qing Wang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, PR China
| | - Gaoran Ge
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, PR China
| | - Jiayi Lin
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, PR China
| | - Nanwei Xu
- Department of Orthopaedics, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, PR China
| | - Chao Xu
- Department of Orthopaedics, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, PR China
| | - Yaozeng Xu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, PR China
| | - Yuji Wang
- Department of Orthopaedics, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, PR China; Department of Orthopedic Surgery and Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, United States.
| | - Dechun Geng
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, PR China.
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Mechanism of Action of Icariin in Bone Marrow Mesenchymal Stem Cells. Stem Cells Int 2019; 2019:5747298. [PMID: 31089330 PMCID: PMC6476003 DOI: 10.1155/2019/5747298] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/28/2019] [Accepted: 03/12/2019] [Indexed: 12/19/2022] Open
Abstract
Osteoporosis, femoral head necrosis, and congenital bone defects are orthopedic disorders characterized by reduced bone generation and insufficient bone mass. Bone regenerative therapy primarily relies on the bone marrow mesenchymal stem cells (BMSCs) and their ability to differentiate osteogenically. Icariin (ICA) is the active ingredient of Herba epimedii, a common herb used in traditional Chinese medicine (TCM) formulations, and can effectively enhance BMSC proliferation and osteogenesis. However, the underlying mechanism of ICA action in BMSCs is not completely clear. In this review, we provide an overview of the studies on the role and mechanism of action of ICA in BMSCs, to provide greater insights into its potential clinical use in bone regeneration.
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28
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Tao SC, Guo SC. Extracellular vesicles in bone: "dogrobbers" in the "eternal battle field". Cell Commun Signal 2019; 17:6. [PMID: 30658653 PMCID: PMC6339294 DOI: 10.1186/s12964-019-0319-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/06/2019] [Indexed: 02/07/2023] Open
Abstract
Throughout human life, bone is constantly in a delicate dynamic equilibrium of synthesis and resorption, hosting finely-tuned bone mineral metabolic processes for bone homeostasis by collaboration or symphony among several cell types including osteoclasts (OCs), osteoblasts (OBs), osteocytes (OYs), vascular endothelial cells (ECs) and their precursors. Beyond these connections, a substantial level of communication seems to occur between bone and other tissues, and together, they form an organic unit linked to human health and disease. However, the current hypothesis, which includes growth factors, hormones and specific protein secretion, incompletely explains the close connections among bone cells or between bone and other tissues. Extracellular vesicles (EVs) are widely-distributed membrane structures consisting of lipid bilayers, membrane proteins and intravesicular cargo (including proteins and nucleic acids), ranging from 30 nm to 1000 nm in diameter, and their characters have been highly conserved throughout evolution. EVs have targeting abilities and the potential to transmit multidimensional, abundant and complicated information, as powerful and substantial "dogrobbers" mediating intercellular communications. As research has progressed, EVs have gradually become thought of as "dogrobbers" in bone tissue-the "eternal battle field" -in a delicate dynamic balance of destruction and reconstruction. In the current review, we give a brief description of the major constituent cells in bone tissues and explore the progress of current research on bone-derived EVs. In addition, this review also discusses in depth not only potential directions for future research to breakthrough in this area but also problems existing in current research that need to be solved for a better understanding of bone tissues.
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Affiliation(s)
- Shi-Cong Tao
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
| | - Shang-Chun Guo
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
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29
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Grafe I, Alexander S, Peterson JR, Snider TN, Levi B, Lee B, Mishina Y. TGF-β Family Signaling in Mesenchymal Differentiation. Cold Spring Harb Perspect Biol 2018; 10:a022202. [PMID: 28507020 PMCID: PMC5932590 DOI: 10.1101/cshperspect.a022202] [Citation(s) in RCA: 160] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem cells (MSCs) can differentiate into several lineages during development and also contribute to tissue homeostasis and regeneration, although the requirements for both may be distinct. MSC lineage commitment and progression in differentiation are regulated by members of the transforming growth factor-β (TGF-β) family. This review focuses on the roles of TGF-β family signaling in mesenchymal lineage commitment and differentiation into osteoblasts, chondrocytes, myoblasts, adipocytes, and tenocytes. We summarize the reported findings of cell culture studies, animal models, and interactions with other signaling pathways and highlight how aberrations in TGF-β family signaling can drive human disease by affecting mesenchymal differentiation.
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Affiliation(s)
- Ingo Grafe
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030
| | - Stefanie Alexander
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030
| | - Jonathan R Peterson
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan 48109
| | - Taylor Nicholas Snider
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109
| | - Benjamin Levi
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan 48109
| | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109
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30
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Silva DI, Santos BPD, Leng J, Oliveira H, Amédée J. Dorsal root ganglion neurons regulate the transcriptional and translational programs of osteoblast differentiation in a microfluidic platform. Cell Death Dis 2017; 8:3209. [PMID: 29238079 PMCID: PMC5870602 DOI: 10.1038/s41419-017-0034-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/28/2017] [Accepted: 10/02/2017] [Indexed: 11/17/2022]
Abstract
Innervation by the sensory nervous system plays a key role in skeletal development and in orchestration of bone remodeling and regeneration. However, it is unclear how and in which bone cells can sensory nerves act to control these processes. Here, we show a microfluidic coculture system comprising dorsal root ganglion (DRG) neurons and mesenchymal stem cells (MSCs) that more faithfully represents the in vivo scenario of bone sensory innervation. We report that DRG neurons promote the osteogenic differentiation capacity of MSCs, by mediating the increase of alkaline phosphatase activity and the upregulation of osteoblast-specific genes. Furthermore, we show that DRG neurons have a positive impact on Cx43 levels in MSCs during osteoblastogenesis, especially at an early stage of this process. Conversely, we described a negative impact of DRG neurons on MSCs N-cadherin expression at a later stage. Finally, we demonstrate a cytoplasmic accumulation of β-catenin translocation into the nucleus, and subsequently Lymphoid Enhancer Binding Factor 1—responsive transcriptional activation of downstream genes in cocultured MSCs. Together, our study provides a robust body of evidence that the direct interaction of DRG neurons with MSCs in a bone-like microenvironment leads to an enhancement of osteoblast differentiation potential of MSCs. The osteogenic effect of DRG neurons on MSCs is mediated through the regulation of Cx43 and N-cadherin expression and activation of the canonical/β-catenin Wnt signaling pathway.
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Affiliation(s)
- Diana Isabel Silva
- Tissue Bioengineering, University of Bordeaux, U1026, 33076, Bordeaux, France. .,Tissue Bioengineering, INSERM, U1026, 33076, Bordeaux, France.
| | - Bruno Paiva Dos Santos
- Tissue Bioengineering, University of Bordeaux, U1026, 33076, Bordeaux, France.,Tissue Bioengineering, INSERM, U1026, 33076, Bordeaux, France
| | - Jacques Leng
- University of Bordeaux, LOF, UMR5258, 33600, Pessac, France.,CNRS, LOF, UMR5258, 33600, Pessac, France.,Solvay, LOF, UMR5258, 33600, Pessac, France
| | - Hugo Oliveira
- Tissue Bioengineering, University of Bordeaux, U1026, 33076, Bordeaux, France.,Tissue Bioengineering, INSERM, U1026, 33076, Bordeaux, France
| | - Joëlle Amédée
- Tissue Bioengineering, University of Bordeaux, U1026, 33076, Bordeaux, France.,Tissue Bioengineering, INSERM, U1026, 33076, Bordeaux, France
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31
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Doro DH, Grigoriadis AE, Liu KJ. Calvarial Suture-Derived Stem Cells and Their Contribution to Cranial Bone Repair. Front Physiol 2017; 8:956. [PMID: 29230181 PMCID: PMC5712071 DOI: 10.3389/fphys.2017.00956] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/10/2017] [Indexed: 12/13/2022] Open
Abstract
In addition to the natural turnover during life, the bones in the skeleton possess the ability to self-repair in response to injury or disease-related bone loss. Based on studies of bone defect models, both processes are largely supported by resident stem cells. In the long bones, the source of skeletal stem cells has been widely investigated over the years, where the major stem cell population is thought to reside in the perivascular niche of the bone marrow. In contrast, we have very limited knowledge about the stem cells contributing to the repair of calvarial bones. In fact, until recently, the presence of specific stem cells in adult craniofacial bones was uncertain. These flat bones are mainly formed via intramembranous rather than endochondral ossification and thus contain minimal bone marrow space. It has been previously proposed that the overlying periosteum and underlying dura mater provide osteoprogenitors for calvarial bone repair. Nonetheless, recent studies have identified a major stem cell population within the suture mesenchyme with multiple differentiation abilities and intrinsic reparative potential. Here we provide an updated review of calvarial stem cells and potential mechanisms of regulation in the context of skull injury repair.
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Affiliation(s)
- Daniel H Doro
- Centre for Craniofacial and Regenerative Biology, King's College London, Guy's Hospital, London, United Kingdom
| | - Agamemnon E Grigoriadis
- Centre for Craniofacial and Regenerative Biology, King's College London, Guy's Hospital, London, United Kingdom
| | - Karen J Liu
- Centre for Craniofacial and Regenerative Biology, King's College London, Guy's Hospital, London, United Kingdom
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Kim KM, Jang WG. Zaluzanin C (ZC) induces osteoblast differentiation through regulating of osteogenic genes expressions in early stage of differentiation. Bioorg Med Chem Lett 2017; 27:4789-4793. [DOI: 10.1016/j.bmcl.2017.09.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 09/28/2017] [Accepted: 09/29/2017] [Indexed: 11/24/2022]
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Guvendiren M, Fung S, Kohn J, De Maria C, Montemurro F, Vozzi G. The control of stem cell morphology and differentiation using three-dimensional printed scaffold architecture. MRS COMMUNICATIONS 2017; 7:383-390. [PMID: 31192033 PMCID: PMC6561507 DOI: 10.1557/mrc.2017.73] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/10/2017] [Indexed: 05/21/2023]
Abstract
In this work, we investigated the interactions of human mesenchymal stem cells (hMSCs) with three-dimensional (3D) printed scaffolds displaying different scaffold architectures. Pressure-assisted microsyringe system was used to fabricate scaffolds with square (SQR), hexagonal (HEX), and octagonal (OCT) architectures defined by various degrees of curvatures. OCT represents the highest degree of curvature followed by HEX, and SQR is composed of linear struts without curvature. Scaffolds were fabricated from poly(L-lactic acid) and poly(tyrosol carbonate). We found that hMSCs attached and spread by taking the shape of the individual struts, exhibiting high aspect ratios (ARs) and mean cell area when cultured on OCT scaffolds as compared with those cultured on HEX and SQR scaffolds. In contrast, cells appeared bulkier with low AR on SQR scaffolds. These significant changes in cell morphology directly correlate with the stem cell lineage commitment, such that 80 ± 1% of the hMSCs grown on OCT scaffolds differentiated into osteogenic lineage, compared with 70 ± 4% and 62 ± 2% of those grown on HEX and SQR scaffolds, respectively. Cells on OCT scaffolds also showed 2.5 times more alkaline phosphatase activity compared with cells on SQR scaffolds. This study demonstrates the importance of scaffold design to direct stem cell differentiation, and aids in the development of novel 3D scaffolds for bone regeneration.
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Affiliation(s)
- Murat Guvendiren
- Otto H. York Department of Chemical, Biological and Pharmaceutical Engineering, Department of Bioengineering, New Jersey Institute of Technology, University Heights, Newark, NJ 07102, USA; New Jersey Center for Biomaterials, Rutgers University, Piscataway, NJ 08854, USA
| | - Stephanie Fung
- New Jersey Center for Biomaterials, Rutgers University, Piscataway, NJ 08854, USA
| | - Joachim Kohn
- New Jersey Center for Biomaterials, Rutgers University, Piscataway, NJ 08854, USA
| | - Carmelo De Maria
- Department of Ingegneria dell'Informazione, Research Center "E. Piaggio", University of Pisa, 56100 Pisa, Italy
| | - Francesca Montemurro
- Department of Ingegneria dell'Informazione, Research Center "E. Piaggio", University of Pisa, 56100 Pisa, Italy
| | - Giovanni Vozzi
- Department of Ingegneria dell'Informazione, Research Center "E. Piaggio", University of Pisa, 56100 Pisa, Italy
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Kuyucu E, Erdil M, Kara A, Bülbül M. Difference between biomarkers of tibial bone marrow and adipose tissue. SICOT J 2017; 3:46. [PMID: 28664842 PMCID: PMC5492787 DOI: 10.1051/sicotj/2017022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 03/21/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Stem cells, with their regeneration capacity, long-term viability, and differentiation characteristics, have indispensable biological properties. As described by Hauner and Grigoradis et al., mesenchymal stem cell originating from adipose or bone marrow can be differentiated into many tissues such as adipocyte, chondrocyte, myeloblast, and osteoblast. The aim of our study is to compare the use of adipose and tibial bone marrow derived stem cells for therapeutic purposes in orthopedic surgery, which has not been clearly evaluated in the literature to our knowledge and to also evaluate their use. MATERIAL AND METHOD Our study was performed between May 2014 and December 2016 in our clinic (Istanbul Medipol University, Department of Orthopedics and Traumatology) in 40 patients. Twelve patients were excluded. The ages of the 28 included patients ranged from 19 to 61 years, with a mean of 41.18 ± 13.39 years. The stem cell samples of these patients were analyzed by flow cytometry. RESULTS Tibial bone marrow stem cells were used in 15 cases and the mean age was 49.33 ± 9.15. Adipose-derived stem cells were used in 13 patients and the mean age was 31.77 ± 11.25. None of the patients had any minor/major complication in the areas where stem cells were collected. DISCUSSION Tibial-derived bone marrow has better results with regard to the complications, economic burden, and surgery time. Tibial-derived bone marrow harvesting and stem cell preparation time are one-fourth of the stem cell treatment prepared from adipose tissue and the surgical duration is shortened by 45 min. CONCLUSION If stem cell use is the preference of the surgeon, we have found that the tibial-derived stem cell system is more advantageous for ease of acquisition, cost analysis, and surgical time.
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Affiliation(s)
- Ersin Kuyucu
- Istanbul Medipol University, Orthopedics and Traumatology Clinic, 34214 Istanbul, Turkey
| | - Mehmet Erdil
- Istanbul Medipol University, Orthopedics and Traumatology Clinic, 34214 Istanbul, Turkey
| | - Adnan Kara
- Istanbul Medipol University, Orthopedics and Traumatology Clinic, 34214 Istanbul, Turkey
| | - Murat Bülbül
- Istanbul Medipol University, Orthopedics and Traumatology Clinic, 34214 Istanbul, Turkey
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35
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Seruya M, Shah A, Pedrotty D, du Laney T, Melgiri R, McKee JA, Young HE, Niklason LE. Clonal Population of Adult Stem Cells: Life Span and Differentiation Potential. Cell Transplant 2017; 13:93-101. [PMID: 15129755 DOI: 10.3727/000000004773301762] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Adult stem cells derived from bone marrow, connective tissue, and solid organs can exhibit a range of differentiation potentials. Some controversy exists regarding the classification of mesenchymal stem cells as bona fide stem cells, which is in part derived from the limited ability to propagate true clonal populations of precursor cells. We isolated putative mesenchymal stem cells from the connective tissue of an adult rat (rMSC), and generated clonal populations via three rounds of dilutional cloning. The replicative potential of the clonal rMSC line far exceeded Hayflick's limit of 50–70 population doublings. The high capacity for self-renewal in vitro correlated with telomerase activity, as demonstrated by telomerase repeat amplification protocol (TRAP) assay. Exposure to nonspecific differentiation culture medium revealed multilineage differentiation potential of rMSC clones. Immunostaining confirmed the appearance of mesodermal phenotypes, including adipocytes possessing lipid-rich vacuoles, chondrocytes depositing pericellular type II collagen, and skeletal myoblasts expressing MyoD1. Importantly, the spectrum of differentiation capability was sustained through repeated passaging. Furthermore, serum-free conditions that led to high-efficiency smooth muscle differentiation were identified. rMSCs plated on collagen IV-coated surfaces and exposed to transforming growth factor-β1 (TGF-β1) differentiated into a homogeneous population expressing α-actin and calponin. Hence, clonogenic analysis confirmed the presence of a putative MSC population derived from the connective tissue of rat skeletal muscle. The ability to differentiate into a smooth muscle cell (SMC) phenotype, combined with a high proliferative capacity, make such a connective tissue-derived MSC population ideal for applications in vascular tissue construction.
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Affiliation(s)
- Mitchel Seruya
- Columbia University College of Physicians and Surgeons, New York, NY 10032, USA
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Quantification of Bone Fatty Acid Metabolism and Its Regulation by Adipocyte Lipoprotein Lipase. Int J Mol Sci 2017; 18:ijms18061264. [PMID: 28608812 PMCID: PMC5486086 DOI: 10.3390/ijms18061264] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 06/03/2017] [Accepted: 06/05/2017] [Indexed: 12/15/2022] Open
Abstract
Adipocytes are master regulators of energy homeostasis. Although the contributions of classical brown and white adipose tissue (BAT and WAT, respectively) to glucose and fatty acid metabolism are well characterized, the metabolic role of adipocytes in bone marrow remains largely unclear. Here, we quantify bone fatty acid metabolism and its contribution to systemic nutrient handling in mice. Whereas in parts of the skeleton the specific amount of nutrients taken-up from the circulation was lower than in other metabolically active tissues such as BAT or liver, the overall contribution of the skeleton as a whole organ was remarkable, placing it among the top organs involved in systemic glucose as well as fatty acid clearance. We show that there are considerable site-specific variations in bone marrow fatty acid composition throughout the skeleton and that, especially in the tibia, marrow fatty acid profiles resemble classical BAT and WAT. Using a mouse model lacking lipoprotein lipase (LPL), a master regulator of plasma lipid turnover specifically in adipocytes, we show that impaired fatty acid flux leads to reduced amounts of dietary essential fatty acids while there was a profound increase in de novo produced fatty acids in both bone marrow and cortical bone. Notably, these changes in fatty acid profiles were not associated with any gross skeletal phenotype. These results identify LPL as an important regulator of fatty acid transport to skeletal compartments and demonstrate an intricate functional link between systemic and skeletal fatty acid and glucose metabolism.
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Cappariello A, Ponzetti M, Rucci N. The "soft" side of the bone: unveiling its endocrine functions. Horm Mol Biol Clin Investig 2017; 28:5-20. [PMID: 27107839 DOI: 10.1515/hmbci-2016-0009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 03/12/2016] [Indexed: 12/27/2022]
Abstract
Bone has always been regarded as a merely structural tissue, a "hard" scaffold protecting all of its "soft" fellows, while they did the rest of the work. In the last few decades this concept has totally changed, and new findings are starting to portray bone as a very talkative tissue that is capable not only of being regulated, but also of regulating other organs. In this review we aim to discuss the endocrine regulation that bone has over whole-body homeostasis, with emphasis on energy metabolism, male fertility, cognitive functions and phosphate (Pi) metabolism. These delicate tasks are mainly carried out by two known hormones, osteocalcin (Ocn) and fibroblast growth factor 23 (FGF23) and possibly other hormones that are yet to be found. The extreme plasticity and dynamicity of bone allows a very fine tuning over the actions these hormones exert, portraying this tissue as a full-fledged endocrine organ, in addition to its classical roles. In conclusion, our findings suggest that bone also has a "soft side", and is daily taking care of our entire organism in ways that were unknown until the last few years.
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Son HE, Kim TH, Jang WG. Curculactones A and B induced the differentiation of C3H10T1/2 and MC3T3-E1 cells to osteoblasts. Bioorg Med Chem Lett 2017; 27:1301-1303. [PMID: 28082041 DOI: 10.1016/j.bmcl.2016.12.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 12/19/2016] [Accepted: 12/28/2016] [Indexed: 01/12/2023]
Abstract
Curculactones A and B are rare γ-lactone derivatives obtained from yellow, natural curcumin following γ-irradiation, and are a type of small molecules with a moderate anti-obesity effect. However, the exact role of curculactones A and B in osteoblast differentiation is unknown. In this study, the effects of curculactones A and B on the differentiation of the mesenchymal cell line C3H10T1/2 and pre-osteoblast cell line MC3T3-E1 to osteoblasts were examined. Curculactones A or B could markedly increase the mRNA levels of osteogenic marker genes and alkaline phosphatase (ALP) activity. Collectively, our findings indicate that curculactones A or B induced osteoblast differentiation through osteogenic expression of genes such as distal-less homeobox 5 (Dlx5), runt-related transcription factor 2 (Runx2), ALP, and osteocalcin (OC).
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Affiliation(s)
- Hyo-Eun Son
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea; Research Institute of Anti-Aging, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Tae Hoon Kim
- Department of Food Science and Biotechnology, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Won-Gu Jang
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea; Research Institute of Anti-Aging, Daegu University, Gyeongsan 38453, Republic of Korea.
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Han DS, Yang WS, Kao TW. Dexamethasone Treatment at the Myoblast Stage Enhanced C2C12 Myocyte Differentiation. Int J Med Sci 2017; 14:434-443. [PMID: 28539819 PMCID: PMC5441035 DOI: 10.7150/ijms.18427] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 03/01/2017] [Indexed: 01/02/2023] Open
Abstract
Background: Glucocorticoids induce skeletal muscle atrophy in many clinical situations; however, their hypertrophic and pro-differentiation effects on myotubes have rarely been reported. We hypothesized that dexamethasone (DEX) has a dual effect on muscle differentiation, and aimed to develop a new differentiation protocol for C2C12 cell line. Methods: Dose- and time-dependent effect of DEX on C2C12 myoblast cell line was analyzed at myoblast and myotube stage, respectively. The level of differentiation was determined by myh1, pax7, atrogin-1, and myostatin mRNA expression and fusion index. Results: After differentiation and at the myotube stage, DEX treatment has an atrophic effect. Specifically, the myotube was thinner, the expression of atrogin-1 increased, and the protein content of myosin heavy chain decreased. In contrast, when DEX treatment was performed before the onset of differentiation, we observed an increase in myotube diameter and myosin heavy chain levels, and a decrease in the expression of atrogin-1. The ratio of multinuclear myotube cells increased in the DEX treatment group. The optimal treatment concentration and time was 100 μM and 48 h, respectively. Co-treatment with 10 μM DEX and 100 nM insulin further enhanced the process of myotube differentiation. Discussion: This novel finding contributed to the explanation on the stage-specific mechanism of glucocorticoid-induced myopathy. A new formula for myoblast differentiation, containing both DEX and insulin, is proposed. Further research is required to understand the complete mechanism of DEX-induced muscle hypertrophy.
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Affiliation(s)
- Der-Sheng Han
- Department of Physical Medicine and Rehabilitation.,Community and Geriatric Medicine Research Center, National Taiwan University Hospital, BeiHu Branch, Taipei.,Department of Physical Medicine and Rehabilitation
| | - Wei-Shiung Yang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei.,Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei.,Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei
| | - Tung-Wei Kao
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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Shirjang S, Mansoori B, Solali S, Hagh MF, Shamsasenjan K. Toll-like receptors as a key regulator of mesenchymal stem cell function: An up-to-date review. Cell Immunol 2016; 315:1-10. [PMID: 28284487 DOI: 10.1016/j.cellimm.2016.12.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 12/07/2016] [Accepted: 12/24/2016] [Indexed: 02/07/2023]
Abstract
Understanding the role of toll-like receptors (TLRs) in the immunomodulation potential, differentiation, migration, and survival of mesenchymal stem cells (MSCs) is absolutely vital to fully exploiting their MSC-based therapeutic potential. Furthermore, through recognition of exogenous or endogenous ligands produced upon injury, TLRs have been linked to allograft rejection and maintenance of chronic inflammatory diseases, including Crohn's disease, rheumatoid arthritis. Characterizing the effect of TLRs in biological control of MSCs fate and function could improve our knowledge about the MSC-based cell therapy and immunotherapy. In this paper, we outline the impacts of TLR activation and mechanisms on MSCs immunomodulatory functions, differentiation, migration, and survivability. Moreover, we indicate that the expression patterns of TLRs in MSCs from different sources.
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Affiliation(s)
- Solmaz Shirjang
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Mansoori
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Solali
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Karim Shamsasenjan
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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A Subset of Malignant Mesothelioma Tumors Retain Osteogenic Potential. Sci Rep 2016; 6:36349. [PMID: 27886205 PMCID: PMC5122867 DOI: 10.1038/srep36349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 10/13/2016] [Indexed: 01/16/2023] Open
Abstract
Malignant mesothelioma (MM) is an aggressive serosal tumor associated with asbestos exposure. We previously demonstrated that mesothelial cells differentiate into cells of different mesenchymal lineages and hypothesize that osseous tissue observed in a subset of MM patients is due to local differentiation of MM cells. In this study, the capacity of human and mouse MM cells to differentiate into osteoblast-like cells was determined in vitro using a functional model of bone nodule formation and in vivo using an established model of MM. Human and murine MM cell lines cultured in osteogenic medium expressed alkaline phosphatase and formed mineralized bone-like nodules. Several human and mouse MM cell lines also expressed a number of osteoblast phenotype markers, including runt-related transcription factor 2 (RUNX2), osteopontin, osteonectin and bone sialoprotein mRNA and protein. Histological analysis of murine MM tumors identified areas of ossification within the tumor, similar to those observed in human MM biopsies. These data demonstrate the ability of MM to differentiate into another mesenchymal cell type and suggest that MM cells may contribute to the formation of the heterologous elements observed in MM tumors.
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Purpura V, Bondioli E, Melandri D, Parodi PC, Valenti L, Riccio M. The Collection of Adipose Derived Stem Cells using Water-Jet Assisted Lipoplasty for their Use in Plastic and Reconstructive Surgery: A Preliminary Study. Front Cell Dev Biol 2016; 4:136. [PMID: 27921032 PMCID: PMC5118416 DOI: 10.3389/fcell.2016.00136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 11/07/2016] [Indexed: 11/13/2022] Open
Abstract
The graft of autologous fat for the augmentation of soft tissue is a common practice frequently used in the field of plastic and reconstructive surgery. In addition, the presence of adipose derived stem cells (ASCs) in adipose tissue stimulates the regeneration of tissue in which it is applied after the autologous fat grafting improving the final clinical results. Due to these characteristics, there is an increasing interest in the use of ASCs for the treatment of several clinical conditions. As a consequence, the use of clean room environment is required for the production of cell-based therapies. The present study is aimed to describe the biological properties of adipose tissue and cells derived from it cultured in vitro in clean room environment according to current regulation. The collection of adipose tissue was performed using the water-jet assisted liposuction in order to preserve an high cell viability increasing their chances of future use for different clinical application in the field of plastic and reconstructive surgery.
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Affiliation(s)
- Valeria Purpura
- Burn Center and Emilia Romagna Regional Skin Bank, "M.Bufalini" Hospital, AUSL della Romagna Cesena, Italy
| | - Elena Bondioli
- Burn Center and Emilia Romagna Regional Skin Bank, "M.Bufalini" Hospital, AUSL della Romagna Cesena, Italy
| | - Davide Melandri
- Burn Center and Emilia Romagna Regional Skin Bank, "M.Bufalini" Hospital, AUSL della Romagna Cesena, Italy
| | - Pier C Parodi
- Clinic of Plastic and Reconstructive Surgery, University of Udine, "AOU Santa Maria della Misericordia" Udine, Italy
| | - Luca Valenti
- Clinic of Plastic and Reconstructive Surgery, University of Milano, "IRCSS San Donato" Milano, Italy
| | - Michele Riccio
- S.O.D.C. Plastic and Reconstructive Hand Surgery, "Ospedali Riuniti" Hospital Ancona, Italy
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Fusion transcriptome profiling provides insights into alveolar rhabdomyosarcoma. Proc Natl Acad Sci U S A 2016; 113:13126-13131. [PMID: 27799565 DOI: 10.1073/pnas.1612734113] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Gene fusions and fusion products were thought to be unique features of neoplasia. However, more and more studies have identified fusion RNAs in normal physiology. Through RNA sequencing of 27 human noncancer tissues, a large number of fusion RNAs were found. By analyzing fusion transcriptome, we observed close clusterings between samples of same or similar tissues, supporting the feasibility of using fusion RNA profiling to reveal connections between biological samples. To put the concept into use, we selected alveolar rhabdomyosarcoma (ARMS), a myogenic pediatric cancer whose exact cell of origin is not clear. PAX3-FOXO1 (paired box gene 3 fused with forkhead box O1) fusion RNA, which is considered a hallmark of ARMS, was recently found during normal muscle cell differentiation. We performed and analyzed RNA sequencing from various time points during myogenesis and uncovered many chimeric fusion RNAs. Interestingly, we found that the fusion RNA profile of RH30, an ARMS cell line, is most similar to the myogenesis time point when PAX3-FOXO1 is expressed. In contrast, full transcriptome clustering analysis failed to uncover this connection. Strikingly, all of the 18 chimeric RNAs in RH30 cells could be detected at the same myogenic time point(s). In addition, the seven chimeric RNAs that follow the exact transient expression pattern as PAX3-FOXO1 are specific to rhabdomyosarcoma cells. Further testing with clinical samples also confirmed their specificity to rhabdomyosarcoma. These results provide further support for the link between at least some ARMSs and the PAX3-FOXO1-expressing myogenic cells and demonstrate that fusion RNA profiling can be used to investigate the etiology of fusion-gene-associated cancers.
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44
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Shipp SL, Cline MA, Gilbert ER. Recent advances in the understanding of how neuropeptide Y and α-melanocyte stimulating hormone function in adipose physiology. Adipocyte 2016; 5:333-350. [PMID: 27994947 DOI: 10.1080/21623945.2016.1208867] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 06/28/2016] [Accepted: 06/28/2016] [Indexed: 12/20/2022] Open
Abstract
Communication between the brain and the adipose tissue has been the focus of many studies in recent years, with the "brain-fat axis" identified as a system that orchestrates the assimilation and usage of energy to maintain body mass and adequate fat stores. It is now well-known that appetite-regulating peptides that were studied as neurotransmitters in the central nervous system can act both on the hypothalamus to regulate feeding behavior and also on the adipose tissue to modulate the storage of energy. Energy balance is thus partly controlled by factors that can alter both energy intake and storage/expenditure. Two such factors involved in these processes are neuropeptide Y (NPY) and α-melanocyte stimulating hormone (α-MSH). NPY, an orexigenic factor, is associated with promoting adipogenesis in both mammals and chickens, while α-MSH, an anorexigenic factor, stimulates lipolysis in rodents. There is also evidence of interaction between the 2 peptides. This review aims to summarize recent advances in the study of NPY and α-MSH regarding their role in adipose tissue physiology, with an emphasis on the cellular and molecular mechanisms. A greater understanding of the brain-fat axis and regulation of adiposity by bioactive peptides may provide insights on strategies to prevent or treat obesity and also enhance nutrient utilization efficiency in agriculturally-important species.
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45
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Gregory JS, Barr RJ, Varela V, Ahearn TS, Gardiner JL, Gilbert FJ, Redpath TW, Hutchison JD, Aspden RM. MRI and the distribution of bone marrow fat in hip osteoarthritis. J Magn Reson Imaging 2016; 45:42-50. [DOI: 10.1002/jmri.25318] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 05/05/2016] [Indexed: 12/29/2022] Open
Affiliation(s)
- Jennifer. S. Gregory
- Arthritis and Musculoskeletal Medicine; Institute of Medical Sciences; School of Medicine, Medical Sciences and Nutrition; University of Aberdeen; Foresterhill Aberdeen UK
| | - Rebecca J. Barr
- Arthritis and Musculoskeletal Medicine; Institute of Medical Sciences; School of Medicine, Medical Sciences and Nutrition; University of Aberdeen; Foresterhill Aberdeen UK
| | - Victor Varela
- Aberdeen Biomedical Imaging Centre; Lillian Sutton Building; School of Medicine, Medical Sciences and Nutrition; University of Aberdeen; Foresterhill Aberdeen UK
| | - Trevor S. Ahearn
- Aberdeen Biomedical Imaging Centre; Lillian Sutton Building; School of Medicine, Medical Sciences and Nutrition; University of Aberdeen; Foresterhill Aberdeen UK
| | | | - Fiona J. Gilbert
- Aberdeen Biomedical Imaging Centre; Lillian Sutton Building; School of Medicine, Medical Sciences and Nutrition; University of Aberdeen; Foresterhill Aberdeen UK
| | - Thomas W. Redpath
- Aberdeen Biomedical Imaging Centre; Lillian Sutton Building; School of Medicine, Medical Sciences and Nutrition; University of Aberdeen; Foresterhill Aberdeen UK
| | - James D. Hutchison
- Arthritis and Musculoskeletal Medicine; Institute of Medical Sciences; School of Medicine, Medical Sciences and Nutrition; University of Aberdeen; Foresterhill Aberdeen UK
| | - Richard M. Aspden
- Arthritis and Musculoskeletal Medicine; Institute of Medical Sciences; School of Medicine, Medical Sciences and Nutrition; University of Aberdeen; Foresterhill Aberdeen UK
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Human Mesenchymal Stem Cells of Diverse Origins Support Persistent Infection with Kaposi's Sarcoma-Associated Herpesvirus and Manifest Distinct Angiogenic, Invasive, and Transforming Phenotypes. mBio 2016; 7:e02109-15. [PMID: 26814175 PMCID: PMC4742711 DOI: 10.1128/mbio.02109-15] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
UNLABELLED Kaposi's sarcoma (KS), a highly angiogenic and invasive tumor often involving different organ sites, including the oral cavity, is caused by infection with Kaposi's sarcoma-associated herpesvirus (KSHV). Diverse cell markers have been identified on KS tumor cells, but their origin remains an enigma. We previously showed that KSHV could efficiently infect, transform, and reprogram rat primary mesenchymal stem cells (MSCs) into KS-like tumor cells. In this study, we showed that human primary MSCs derived from diverse organs, including bone marrow (MSCbm), adipose tissue (MSCa), dental pulp, gingiva tissue (GMSC), and exfoliated deciduous teeth, were permissive to KSHV infection. We successfully established long-term cultures of KSHV-infected MSCa, MSCbm, and GMSC (LTC-KMSCs). While LTC-KMSCs had lower proliferation rates than the uninfected cells, they expressed mixtures of KS markers and displayed differential angiogenic, invasive, and transforming phenotypes. Genetic analysis identified KSHV-derived microRNAs that mediated KSHV-induced angiogenic activity by activating the AKT pathway. These results indicated that human MSCs could be the KSHV target cells in vivo and established valid models for delineating the mechanism of KSHV infection, replication, and malignant transformation in biologically relevant cell types. IMPORTANCE Kaposi's sarcoma is the most common cancer in AIDS patients. While KSHV infection is required for the development of Kaposi's sarcoma, the origin of KSHV target cells remains unclear. We show that KSHV can efficiently infect human primary mesenchymal stem cells of diverse origins and reprogram them to acquire various degrees of Kaposi's sarcoma-like cell makers and angiogenic, invasive, and transforming phenotypes. These results indicate that human mesenchymal stem cells might be the KSHV target cells and establish models for delineating the mechanism of KSHV-induced malignant transformation.
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47
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Yang Z, Liu Q, Mannix RJ, Xu X, Li H, Ma Z, Ingber DE, Allen PD, Wang Y. Mononuclear cells from dedifferentiation of mouse myotubes display remarkable regenerative capability. Stem Cells 2015; 32:2492-501. [PMID: 24916688 DOI: 10.1002/stem.1742] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 03/26/2014] [Accepted: 04/04/2014] [Indexed: 02/06/2023]
Abstract
Certain lower organisms achieve organ regeneration by reverting differentiated cells into tissue-specific progenitors that re-enter embryonic programs. During muscle regeneration in the urodele amphibian, postmitotic multinucleated skeletal myofibers transform into mononucleated proliferating cells upon injury, and a transcription factor-msx1 plays a role in their reprograming. Whether this powerful regeneration strategy can be leveraged in mammals remains unknown, as it has not been demonstrated that the dedifferentiated progenitor cells arising from muscle cells overexpressing Msx1 are lineage-specific and possess the same potent regenerative capability as their amphibian counterparts. Here, we show that ectopic expression of Msx1 reprograms postmitotic, multinucleated, primary mouse myotubes to become proliferating mononuclear cells. These dedifferentiated cells reactivate genes expressed by embryonic muscle progenitor cells and generate only muscle tissue in vivo both in an ectopic location and inside existing muscle. More importantly, distinct from adult muscle satellite cells, these cells appear both to fuse with existing fibers and to regenerate myofibers in a robust and time-dependent manner. Upon transplantation into a degenerating muscle, these dedifferentiated cells generated a large number of myofibers that increased over time and replenished almost half of the cross-sectional area of the muscle in only 12 weeks. Our study demonstrates that mammals can harness a muscle regeneration strategy used by lower organisms when the same molecular pathway is activated.
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Affiliation(s)
- Zhong Yang
- College of Laboratory Medicine, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China; Department of Anesthesia Perioperative and Pain Medicine, Boston, Massachusetts, USA
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Itaba N, Matsumi Y, Okinaka K, Ashla AA, Kono Y, Osaki M, Morimoto M, Sugiyama N, Ohashi K, Okano T, Shiota G. Human mesenchymal stem cell-engineered hepatic cell sheets accelerate liver regeneration in mice. Sci Rep 2015; 5:16169. [PMID: 26553591 PMCID: PMC4639852 DOI: 10.1038/srep16169] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 10/08/2015] [Indexed: 12/22/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are an attractive cell source for cell therapy. Based on our hypothesis that suppression of Wnt/β-catenin signal enhances hepatic differentiation of human MSCs, we developed human mesenchymal stem cell-engineered hepatic cell sheets by a small molecule compound. Screening of 10 small molecule compounds was performed by WST assay, TCF reporter assay, and albumin mRNA expression. Consequently, hexachlorophene suppressed TCF reporter activity in time- and concentration-dependent manner. Hexachlorophene rapidly induced hepatic differentiation of human MSCs judging from expression of liver-specific genes and proteins, PAS staining, and urea production. The effect of orthotopic transplantation of human mesenchymal stem cell-engineered hepatic cell sheets against acute liver injury was examined in one-layered to three-layered cell sheets system. Transplantation of human mesenchymal stem cell-engineered hepatic cell sheets enhanced liver regeneration and suppressed liver injury. The survival rates of the mice were significantly improved. High expression of complement C3 and its downstream signals including C5a, NF-κB, and IL-6/STAT-3 pathway was observed in hepatic cell sheets-grafted tissues. Expression of phosphorylated EGFR and thioredoxin is enhanced, resulting in reduction of oxidative stress. These findings suggest that orthotopic transplantation of hepatic cell sheets manufactured from MSCs accelerates liver regeneration through complement C3, EGFR and thioredoxin.
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Affiliation(s)
- Noriko Itaba
- Division of Molecular and Genetic Medicine, Graduate School of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - Yoshiaki Matsumi
- Division of Molecular and Genetic Medicine, Graduate School of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - Kaori Okinaka
- Division of Molecular and Genetic Medicine, Graduate School of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - An Afida Ashla
- Division of Molecular and Genetic Medicine, Graduate School of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - Yohei Kono
- Division of Molecular and Genetic Medicine, Graduate School of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - Mitsuhiko Osaki
- Division of Pathological Biochemistry, Department of Biomedical Sciences, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - Minoru Morimoto
- Research Center for Bioscience and Technology, Tottori University, 4-101, Koyama-cho Minami, Tottori 680-8550, Japan
| | - Naoyuki Sugiyama
- Department of Molecular and Cellular BioAnalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 6-29 Yoshida-Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kazuo Ohashi
- Laboratory of Drug Development and Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-Oka, Suita, Osaka 565-0871, Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University. 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan
| | - Goshi Shiota
- Division of Molecular and Genetic Medicine, Graduate School of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
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Abstract
Muscle and bone are two intimately connected tissues. A coordinated interplay between these tissues at mechanical levels is required for their development, function and ageing. Evidence is emerging that several genes and molecular pathways exert a pleiotropic effect on both muscle and bone. Bone morphogenetic proteins (BMPs) are secreted signal factors belonging to the transforming growth factor β (TGFβ) superfamily. BMPs have an essential role during bone and cartilage formation and maintenance. Recently, we and others have demonstrated that the BMP pathway also has a role in controlling adult skeletal muscle mass. Thus, BMPs become crucial regulators of both bone and muscle formation and homeostasis. In this review we will discuss the signalling downstream BMP and its role in muscle-bone interaction. This article is part of a Special Issue entitled "Muscle Bone Interactions".
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Affiliation(s)
- Roberta Sartori
- Dulbecco Telethon Institute, Venetian Institute of Molecular Medicine, 35129 Padova, Italy; Department of Biomedical Sciences, University of Padova, 35121 Padova, Italy.
| | - Marco Sandri
- Dulbecco Telethon Institute, Venetian Institute of Molecular Medicine, 35129 Padova, Italy; Department of Biomedical Sciences, University of Padova, 35121 Padova, Italy; Telethon Institute of Genetics and Medicine (TIGEM), 80131 Napoli, Italy.
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Li H, Li T, Fan J, Li T, Fan L, Wang S, Weng X, Han Q, Zhao RC. miR-216a rescues dexamethasone suppression of osteogenesis, promotes osteoblast differentiation and enhances bone formation, by regulating c-Cbl-mediated PI3K/AKT pathway. Cell Death Differ 2015. [PMID: 26206089 DOI: 10.1038/cdd.2015.99] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Osteoporosis is a disease marked by reduced bone mass, leading to an increased risk of fractures or broken bones. Bone formation is mediated by recruiting mesenchymal stem cells (MSCs). Elucidation of the molecular mechanisms that regulate MSC differentiation into osteoblasts is of great importance for the development of anabolic therapies for osteoporosis and other bone metabolism-related diseases. microRNAs (miRNAs) have been reported to have crucial roles in bone development, osteogenic differentiation and osteoporosis pathophysiology. However, to date, only a few miRNAs have been reported to enhance osteogenesis and regulate the suppressive effect of glucocorticoids on osteogenic differentiation. In this study, we discovered that miR-216a, a pancreatic-specific miRNA, was significantly upregulated during osteogenic differentiation in human adipose-derived MSCs (hAMSCs). The expression of miR-216a was positively correlated with the expression of bone formation marker genes in clinical osteoporosis samples. Functional analysis demonstrated that miR-216a can markedly promote osteogenic differentiation of hAMSCs, rescue the suppressive effect of dexamethasone (DEX) on osteogenic differentiation in vitro and enhance bone formation in vivo. c-Cbl, a gene that encodes a RING finger E3 ubiquitin ligase, was identified as a direct target of miR-216a. Downregulation of c-Cbl by short hairpin RNAs can mimic the promotion effects of miR-216a and significantly rescue the suppressive effects of DEX on osteogenesis. Pathway analysis indicated that miR-216a regulation of osteogenic differentiation occurs via the c-Cbl-mediated phosphatidylinositol 3 kinase (PI3K)/AKT pathway. The recovery effects of miR-216a on the inhibition of osteogenesis by DEX were attenuated after blocking the PI3K pathway. Thus, our findings suggest that miR-216a may serve as a novel therapeutic agent for the prevention and treatment of osteoporosis and other bone metabolism-related diseases.
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Affiliation(s)
- H Li
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Peking Union Medical College Hospital, Center of Excellence in Tissue Engineering Chinese Academy of Medical Sciences, Beijing, China
| | - T Li
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Peking Union Medical College Hospital, Center of Excellence in Tissue Engineering Chinese Academy of Medical Sciences, Beijing, China
| | - J Fan
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Peking Union Medical College Hospital, Center of Excellence in Tissue Engineering Chinese Academy of Medical Sciences, Beijing, China
| | - T Li
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, 100730, China
| | - L Fan
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Peking Union Medical College Hospital, Center of Excellence in Tissue Engineering Chinese Academy of Medical Sciences, Beijing, China
| | - S Wang
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Peking Union Medical College Hospital, Center of Excellence in Tissue Engineering Chinese Academy of Medical Sciences, Beijing, China
| | - X Weng
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, 100730, China
| | - Q Han
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Peking Union Medical College Hospital, Center of Excellence in Tissue Engineering Chinese Academy of Medical Sciences, Beijing, China
| | - R C Zhao
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Peking Union Medical College Hospital, Center of Excellence in Tissue Engineering Chinese Academy of Medical Sciences, Beijing, China
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