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Giacomini F, Rho HS, Eischen-Loges M, Tahmasebi Birgani Z, van Blitterswijk C, van Griensven M, Giselbrecht S, Habibović P, Truckenmüller R. Enthesitis on Chip - A Model for Studying Acute and Chronic Inflammation of the Enthesis and its Pharmacological Treatment. Adv Healthc Mater 2024:e2401815. [PMID: 39188199 DOI: 10.1002/adhm.202401815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 08/14/2024] [Indexed: 08/28/2024]
Abstract
Enthesitis, the inflammation of the enthesis, which is the point of attachment of tendons and ligaments to bones, is a common musculoskeletal disease. The inflammation often originates from the fibrocartilage region of the enthesis as a consequence of mechanical overuse or -load and consequently tissue damage. During enthesitis, waves of inflammatory cytokines propagate in(to) the fibrocartilage, resulting in detrimental, heterotopic bone formation. Understanding of human enthesitis and its treatment options is limited, also because of lacking in vitro model systems that can closely mimic the pathophysiology of the enthesis and can be used to develop therapies. In this study, an enthes(it)is-on-chip model is developed. On opposite sides of a porous culture membrane separating the chip's two microfluidic compartments, human mesenchymal stromal cells are selectively differentiated into tenocytes and fibrochondrocytes. By introducing an inflammatory cytokine cocktail into the fibrochondrocyte compartment, key aspects of acute and chronic enthesitis, measured as increased expression of inflammatory markers, can be recapitulated. Upon inducing chronic inflammatory conditions, hydroxyapatite deposition, enhanced osteogenic marker expression and reduced secretion of tissue-related extracellular matrix components are observed. Adding the anti-inflammatory drug celecoxib to the fibrochondrocyte compartment mitigates the inflammatory state, demonstrating the potential of the enthesitis-on-chip model for drug testing.
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Affiliation(s)
- Francesca Giacomini
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Hoon Suk Rho
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Maria Eischen-Loges
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
- Department of Cell Biology-Inspired Tissue Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Zeinab Tahmasebi Birgani
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Clemens van Blitterswijk
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
- Department of Cell Biology-Inspired Tissue Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Martijn van Griensven
- Department of Cell Biology-Inspired Tissue Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Stefan Giselbrecht
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Pamela Habibović
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Roman Truckenmüller
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
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2
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Sorsby M, Almardini S, Alayyat A, Hughes A, Venkat S, Rahman M, Baker J, Rana R, Rosen V, Liu ES. The role of GDF5 in regulating enthesopathy development in the Hyp mouse model of XLH. J Bone Miner Res 2024; 39:1162-1173. [PMID: 38836497 PMCID: PMC11337578 DOI: 10.1093/jbmr/zjae086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 04/25/2024] [Accepted: 06/04/2024] [Indexed: 06/06/2024]
Abstract
X-linked hypophosphatemia (XLH) is caused by mutations in PHEX, leading to rickets and osteomalacia. Adults affected with XLH develop a mineralization of the bone-tendon attachment site (enthesis), called enthesopathy, which causes significant pain and impaired movement. Entheses in mice with XLH (Hyp) have enhanced bone morphogenetic protein (BMP) and Indian hedgehog (IHH) signaling. Treatment of Hyp mice with the BMP signaling blocker palovarotene attenuated BMP/IHH signaling in Hyp entheses, thus indicating that BMP signaling plays a pathogenic role in enthesopathy development and that IHH signaling is activated by BMP signaling in entheses. It was previously shown that mRNA expression of growth/differentiation factor 5 (Gdf5) is enhanced in Hyp entheses at P14. Thus, to determine a role for GDF5 in enthesopathy development, Gdf5 was deleted globally in Hyp mice and conditionally in Scx + cells of Hyp mice. In both murine models, BMP/IHH signaling was similarly decreased in Hyp entheses, leading to decreased enthesopathy. BMP/IHH signaling remained unaffected in WT entheses with decreased Gdf5 expression. Moreover, deletion of Gdf5 in Hyp entheses starting at P30, after enthesopathy has developed, partially reversed enthesopathy. Taken together, these results demonstrate that while GDF5 is not essential for modulating BMP/IHH signaling in WT entheses, inappropriate GDF5 activity in Scx + cells contributes to XLH enthesopathy development. As such, inhibition of GDF5 signaling may be beneficial for the treatment of XLH enthesopathy.
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Affiliation(s)
- Melissa Sorsby
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, MA 02115, United States
| | - Shaza Almardini
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, MA 02115, United States
| | - Ahmad Alayyat
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, MA 02115, United States
| | - Ashleigh Hughes
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, MA 02115, United States
| | - Shreya Venkat
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, MA 02115, United States
| | - Mansoor Rahman
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, MA 02115, United States
| | - Jiana Baker
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, MA 02115, United States
| | - Rakshya Rana
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, MA 02115, United States
| | - Vicki Rosen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA 02115, United States
| | - Eva S Liu
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, MA 02115, United States
- Harvard Medical School, Boston, MA 02115, United States
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3
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Humphreys PEA, Woods S, Bates N, Rooney KM, Mancini FE, Barclay C, O'Flaherty J, Martial FP, Domingos MAN, Kimber SJ. Optogenetic manipulation of BMP signaling to drive chondrogenic differentiation of hPSCs. Cell Rep 2023; 42:113502. [PMID: 38032796 DOI: 10.1016/j.celrep.2023.113502] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/23/2023] [Accepted: 11/13/2023] [Indexed: 12/02/2023] Open
Abstract
Optogenetics is a rapidly advancing technology combining photochemical, optical, and synthetic biology to control cellular behavior. Together, sensitive light-responsive optogenetic tools and human pluripotent stem cell differentiation models have the potential to fine-tune differentiation and unpick the processes by which cell specification and tissue patterning are controlled by morphogens. We used an optogenetic bone morphogenetic protein (BMP) signaling system (optoBMP) to drive chondrogenic differentiation of human embryonic stem cells (hESCs). We engineered light-sensitive hESCs through CRISPR-Cas9-mediated integration of the optoBMP system into the AAVS1 locus. The activation of optoBMP with blue light, in lieu of BMP growth factors, resulted in the activation of BMP signaling mechanisms and upregulation of a chondrogenic phenotype, with significant transcriptional differences compared to cells in the dark. Furthermore, cells differentiated with light could form chondrogenic pellets consisting of a hyaline-like cartilaginous matrix. Our findings indicate the applicability of optogenetics for understanding human development and tissue engineering.
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Affiliation(s)
- Paul E A Humphreys
- Division of Cell Matrix & Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Steven Woods
- Division of Cell Matrix & Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Nicola Bates
- Division of Cell Matrix & Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Kirsty M Rooney
- Division of Cell Matrix & Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Fabrizio E Mancini
- Division of Cell Matrix & Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK; Department of Mechanical, Aerospace, and Civil Engineering, Faculty of Science and Engineering, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Cerys Barclay
- Division of Cell Matrix & Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Julieta O'Flaherty
- Division of Cell Matrix & Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Franck P Martial
- Division of Neuroscience & Experimental Psychology, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Marco A N Domingos
- Department of Mechanical, Aerospace, and Civil Engineering, Faculty of Science and Engineering, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Susan J Kimber
- Division of Cell Matrix & Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK.
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Bottasso-Arias N, Burra K, Sinner D, Riede T. Disruption of BMP4 signaling is associated with laryngeal birth defects in a mouse model. Dev Biol 2023; 500:10-21. [PMID: 37230380 PMCID: PMC10330877 DOI: 10.1016/j.ydbio.2023.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/18/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023]
Abstract
Laryngeal birth defects are considered rare, but they can be life-threatening conditions. The BMP4 gene plays an important role in organ development and tissue remodeling throughout life. Here we examined its role in laryngeal development complementing similar efforts for the lung, pharynx, and cranial base. Our goal was to determine how different imaging techniques contribute to a better understanding of the embryonic anatomy of the normal and diseased larynx in small specimens. Contrast-enhanced micro CT images of embryonic larynx tissue from a mouse model with Bmp4 deletion informed by histology and whole-mount immunofluorescence were used to reconstruct the laryngeal cartilaginous framework in three dimensions. Laryngeal defects included laryngeal cleft, laryngeal asymmetry, ankylosis and atresia. Results implicate BMP4 in laryngeal development and show that the 3D reconstruction of laryngeal elements provides a powerful approach to visualize laryngeal defects and thereby overcoming shortcomings of 2D histological sectioning and whole mount immunofluorescence.
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Affiliation(s)
- N Bottasso-Arias
- Neonatology and Pulmonary Biology, Perinatal Institute Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - K Burra
- Neonatology and Pulmonary Biology, Perinatal Institute Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - D Sinner
- Neonatology and Pulmonary Biology, Perinatal Institute Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; College of Medicine, University of Cincinnati, Cincinnati, OH, USA.
| | - T Riede
- Department of Physiology, Midwestern University, Glendale, AZ, USA.
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Skeletal Muscle-Derived Exosomal miR-146a-5p Inhibits Adipogenesis by Mediating Muscle-Fat Axis and Targeting GDF5-PPARγ Signaling. Int J Mol Sci 2023; 24:ijms24054561. [PMID: 36901991 PMCID: PMC10003660 DOI: 10.3390/ijms24054561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/13/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Skeletal muscle-fat interaction is essential for maintaining organismal energy homeostasis and managing obesity by secreting cytokines and exosomes, but the role of the latter as a new mediator in inter-tissue communication remains unclear. Recently, we discovered that miR-146a-5p was mainly enriched in skeletal muscle-derived exosomes (SKM-Exos), 50-fold higher than in fat exosomes. Here, we investigated the role of skeletal muscle-derived exosomes regulating lipid metabolism in adipose tissue by delivering miR-146a-5p. The results showed that skeletal muscle cell-derived exosomes significantly inhibited the differentiation of preadipocytes and their adipogenesis. When the skeletal muscle-derived exosomes co-treated adipocytes with miR-146a-5p inhibitor, this inhibition was reversed. Additionally, skeletal muscle-specific knockout miR-146a-5p (mKO) mice significantly increased body weight gain and decreased oxidative metabolism. On the other hand, the internalization of this miRNA into the mKO mice by injecting skeletal muscle-derived exosomes from the Flox mice (Flox-Exos) resulted in significant phenotypic reversion, including down-regulation of genes and proteins involved in adipogenesis. Mechanistically, miR-146a-5p has also been demonstrated to function as a negative regulator of peroxisome proliferator-activated receptor γ (PPARγ) signaling by directly targeting growth and differentiation factor 5 (GDF5) gene to mediate adipogenesis and fatty acid absorption. Taken together, these data provide new insights into the role of miR-146a-5p as a novel myokine involved in the regulation of adipogenesis and obesity via mediating the skeletal muscle-fat signaling axis, which may serve as a target for the development of therapies against metabolic diseases, such as obesity.
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6
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He W, Lin X. LINC00313 promotes the proliferation and inhibits the apoptosis of chondrocytes via regulating miR-525-5p/GDF5 axis. J Orthop Surg Res 2023; 18:137. [PMID: 36823651 PMCID: PMC9951454 DOI: 10.1186/s13018-023-03610-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/13/2023] [Indexed: 02/25/2023] Open
Abstract
BACKGROUND The present study aimed to explore the potentials of lncRNA LINC00313 in osteoarthritis (OA). METHODS qRT-PCR was performed to detect the expression of LINC00313 in OA tissues and cells. CCK-8 and EDU were used to detect cell proliferation. The ELISA test kit was conducted to detect the expression of inflammatory factors. Flow cytometry was used to detect the apoptosis rates. Western blot was applied to measure the protein expression. The luciferase reporter gene test was carried out to verify the relationship between miR-525-5p and LINC00313 or GDF5. RESULTS The data showed that the expression of LINC00313 was significantly down-regulated in OA tissues and cells. Functionally, LINC00313 promoted the proliferation of chondrocytes and suppressed the secretion of inflammatory factors and cell apoptosis. Moreover, LINC00313 functioned as a ceRNA to up-regulate the expression of GDF5 via sponging miR-525-5p. Luciferase and RNA pull-down assays further verified the interaction between miR-525-5p and LINC00313 (or GDF5). Moreover, overexpression of miR-525-5p or down-regulated GDF5 degraded the cellular functions of chondrocyte. Rescue experiments showed that the overexpression of miR-525-5p reversed the increase in cell viability and the decrease in pro-inflammatory factors and apoptosis rate mediated by LINC00313. The knockdown of GDF5 reversed the promotion of miR-525-5p knockdown on cell viability and the inhibition of pro-inflammatory factors and apoptosis rate. CONCLUSIONS LINC00313 inhibited the development of OA through regulating miR-525-5p/GDF5 axis. LncRNA LINC00313 can be used as a potential target for the treatment of OA.
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Affiliation(s)
- Wen He
- Department of Orthopaedics, Fuzhou Second Hospital, No. 47, Shangteng Road, Cangshan District, Fuzhou, 350007, Fujian, China.
| | - Xuchao Lin
- grid.490567.9Department of Orthopaedics, Fuzhou Second Hospital, No. 47, Shangteng Road, Cangshan District, Fuzhou, 350007 Fujian China
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Guo X, Ma Y, Min Y, Sun J, Shi X, Gao G, Sun L, Wang J. Progress and prospect of technical and regulatory challenges on tissue-engineered cartilage as therapeutic combination product. Bioact Mater 2023; 20:501-518. [PMID: 35846847 PMCID: PMC9253051 DOI: 10.1016/j.bioactmat.2022.06.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 06/19/2022] [Accepted: 06/19/2022] [Indexed: 12/18/2022] Open
Abstract
Hyaline cartilage plays a critical role in maintaining joint function and pain. However, the lack of blood supply, nerves, and lymphatic vessels greatly limited the self-repair and regeneration of damaged cartilage, giving rise to various tricky issues in medicine. In the past 30 years, numerous treatment techniques and commercial products have been developed and practiced in the clinic for promoting defected cartilage repair and regeneration. Here, the current therapies and their relevant advantages and disadvantages will be summarized, particularly the tissue engineering strategies. Furthermore, the fabrication of tissue-engineered cartilage under research or in the clinic was discussed based on the traid of tissue engineering, that is the materials, seed cells, and bioactive factors. Finally, the commercialized cartilage repair products were listed and the regulatory issues and challenges of tissue-engineered cartilage repair products and clinical application would be reviewed. Tissue engineered cartilage, a promising strategy for articular cartilage repair. Nearly 20 engineered cartilage repair products in clinic based on clinical techniques. Combination product, the classification of tissue-engineered cartilage. Key regulatory compliance issues for combination products.
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Affiliation(s)
- Xiaolei Guo
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing, PR China
- Corresponding author.
| | - Yuan Ma
- State Key Laboratory of Tribology, Tsinghua University, Beijing, PR China
| | - Yue Min
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing, PR China
| | - Jiayi Sun
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing, PR China
| | - Xinli Shi
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing, PR China
- Corresponding author. Center for Medical Device Evaluation, National Medical Products Administration, Beijing, 100081, PR China
| | - Guobiao Gao
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing, PR China
| | - Lei Sun
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing, PR China
| | - Jiadao Wang
- State Key Laboratory of Tribology, Tsinghua University, Beijing, PR China
- Corresponding author. State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China.
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Witoonpanich B, Jinawath A, Wongtawan T, Tawonsawatruk T. Association of synovial expression of growth and differentiation factor 5 (GDF5) with radiographic severity of knee osteoarthritis. Heliyon 2022; 8:e11798. [DOI: 10.1016/j.heliyon.2022.e11798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 09/21/2021] [Accepted: 11/14/2022] [Indexed: 11/20/2022] Open
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Ramzan F, Ekram S, Frazier T, Salim A, Mohiuddin OA, Khan I. Decellularized Human Umbilical Tissue-Derived Hydrogels Promote Proliferation and Chondrogenic Differentiation of Mesenchymal Stem Cells. Bioengineering (Basel) 2022; 9:bioengineering9060239. [PMID: 35735483 PMCID: PMC9219846 DOI: 10.3390/bioengineering9060239] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/23/2022] [Accepted: 05/27/2022] [Indexed: 11/23/2022] Open
Abstract
Tissue engineering is a promising approach for the repair and regeneration of cartilaginous tissue. Appropriate three-dimensional scaffolding materials that mimic cartilage are ideal for the repair of chondral defects. The emerging decellularized tissue-based scaffolds have the potential to provide essential biochemical signals and structural integrity, which mimics the natural tissue environment and directs cellular fate. Umbilical cord-derived hydrogels function as 3D scaffolding material, which support adherence, proliferation, migration, and differentiation of cells due to their similar biochemical composition to cartilage. Therefore, the present study aimed to establish a protocol for the formulation of a hydrogel from decellularized human umbilical cord (DUC) tissue, and assess its application in the proliferation and differentiation of UC-MSCs along chondrogenic lineage. The results showed that the umbilical cord was efficiently decellularized. Subsequently, DUC hydrogel was prepared, and in vitro chondral differentiation of MSCs seeded on the scaffold was determined. The developed protocol efficiently removed the cellular and nuclear content while retaining the extracellular matrix (ECM). DUC tissue, pre-gel, and hydrogels were evaluated by FTIR spectroscopy, which confirmed the gelation from pre-gel to hydrogel. SEM analysis revealed the fibril morphology and porosity of the DUC hydrogel. Calcein AM and Alamar blue assays confirmed the MSC survival, attachment, and proliferation in the DUC hydrogels. Following seeding of UC-MSCs in the hydrogels, they were cultured in stromal or chondrogenic media for 28 days, and the expression of chondrogenic marker genes including TGF-β1, BMP2, SOX-9, SIX-1, GDF-5, and AGGRECAN was significantly increased (* p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001). Moreover, the hydrogel concentration was found to significantly affect the expression of chondrogenic marker genes. The overall results indicate that the DUC-hydrogel is compatible with MSCs and supports their chondrogenic differentiation in vitro.
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Affiliation(s)
- Faiza Ramzan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (F.R.); (S.E.); (A.S.); (O.A.M.)
| | - Sobia Ekram
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (F.R.); (S.E.); (A.S.); (O.A.M.)
| | | | - Asmat Salim
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (F.R.); (S.E.); (A.S.); (O.A.M.)
| | - Omair Anwar Mohiuddin
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (F.R.); (S.E.); (A.S.); (O.A.M.)
| | - Irfan Khan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (F.R.); (S.E.); (A.S.); (O.A.M.)
- Correspondence: ; Tel.: +92-332-9636970
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10
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Mead TJ, Martin DR, Wang LW, Cain SA, Gulec C, Cahill E, Mauch J, Reinhardt D, Lo C, Baldock C, Apte SS. Proteolysis of fibrillin-2 microfibrils is essential for normal skeletal development. eLife 2022; 11:71142. [PMID: 35503090 PMCID: PMC9064305 DOI: 10.7554/elife.71142] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 04/13/2022] [Indexed: 01/08/2023] Open
Abstract
The embryonic extracellular matrix (ECM) undergoes transition to mature ECM as development progresses, yet few mechanisms ensuring ECM proteostasis during this period are known. Fibrillin microfibrils are macromolecular ECM complexes serving structural and regulatory roles. In mice, Fbn1 and Fbn2, encoding the major microfibrillar components, are strongly expressed during embryogenesis, but fibrillin-1 is the major component observed in adult tissue microfibrils. Here, analysis of Adamts6 and Adamts10 mutant mouse embryos, lacking these homologous secreted metalloproteases individually and in combination, along with in vitro analysis of microfibrils, measurement of ADAMTS6-fibrillin affinities and N-terminomics discovery of ADAMTS6-cleaved sites, identifies a proteostatic mechanism contributing to postnatal fibrillin-2 reduction and fibrillin-1 dominance. The lack of ADAMTS6, alone and in combination with ADAMTS10 led to excess fibrillin-2 in perichondrium, with impaired skeletal development defined by a drastic reduction of aggrecan and cartilage link protein, impaired BMP signaling in cartilage, and increased GDF5 sequestration in fibrillin-2-rich tissue. Although ADAMTS6 cleaves fibrillin-1 and fibrillin-2 as well as fibronectin, which provides the initial scaffold for microfibril assembly, primacy of the protease-substrate relationship between ADAMTS6 and fibrillin-2 was unequivocally established by reversal of the defects in Adamts6-/- embryos by genetic reduction of Fbn2, but not Fbn1.
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Affiliation(s)
- Timothy J Mead
- Department of Biomedical Engineering and Musculoskeletal Research Center, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States
| | - Daniel R Martin
- Department of Biomedical Engineering and Musculoskeletal Research Center, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States
| | - Lauren W Wang
- Department of Biomedical Engineering and Musculoskeletal Research Center, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States
| | - Stuart A Cain
- Division of Cell-Matrix Biology and Regenerative Medicine, Wellcome Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Cagri Gulec
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Elisabeth Cahill
- Department of Biomedical Engineering and Musculoskeletal Research Center, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States
| | - Joseph Mauch
- Department of Biomedical Engineering and Musculoskeletal Research Center, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States
| | - Dieter Reinhardt
- Faculty of Medicine and Health Sciences and Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Canada
| | - Cecilia Lo
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Clair Baldock
- Division of Cell-Matrix Biology and Regenerative Medicine, Wellcome Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Suneel S Apte
- Department of Biomedical Engineering and Musculoskeletal Research Center, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States
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11
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Zhu L, Liu Y, Wang A, Zhu Z, Li Y, Zhu C, Che Z, Liu T, Liu H, Huang L. Application of BMP in Bone Tissue Engineering. Front Bioeng Biotechnol 2022; 10:810880. [PMID: 35433652 PMCID: PMC9008764 DOI: 10.3389/fbioe.2022.810880] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 03/01/2022] [Indexed: 01/15/2023] Open
Abstract
At present, bone nonunion and delayed union are still difficult problems in orthopaedics. Since the discovery of bone morphogenetic protein (BMP), it has been widely used in various studies due to its powerful role in promoting osteogenesis and chondrogenesis. Current results show that BMPs can promote healing of bone defects and reduce the occurrence of complications. However, the mechanism of BMP in vivo still needs to be explored, and application of BMP alone to a bone defect site cannot achieve good therapeutic effects. It is particularly important to modify implants to carry BMP to achieve slow and sustained release effects by taking advantage of the nature of the implant. This review aims to explain the mechanism of BMP action in vivo, its biological function, and how BMP can be applied to orthopaedic implants to effectively stimulate bone healing in the long term. Notably, implantation of a system that allows sustained release of BMP can provide an effective method to treat bone nonunion and delayed bone healing in the clinic.
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Affiliation(s)
- Liwei Zhu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
- Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Yuzhe Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Ao Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Zhengqing Zhu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Youbin Li
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Chenyi Zhu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Zhenjia Che
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Tengyue Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - He Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
- Orthopaedic Research Institute of Jilin Province, Changchun, China
- *Correspondence: He Liu, ; Lanfeng Huang,
| | - Lanfeng Huang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
- *Correspondence: He Liu, ; Lanfeng Huang,
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12
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Bottasso-Arias N, Leesman L, Burra K, Snowball J, Shah R, Mohanakrishnan M, Xu Y, Sinner D. BMP4 and Wnt signaling interact to promote mouse tracheal mesenchyme morphogenesis. Am J Physiol Lung Cell Mol Physiol 2022; 322:L224-L242. [PMID: 34851738 PMCID: PMC8794023 DOI: 10.1152/ajplung.00255.2021] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Tracheobronchomalacia and complete tracheal rings are congenital malformations of the trachea associated with morbidity and mortality for which the etiology remains poorly understood. Epithelial expression of Wls (a cargo receptor mediating Wnt ligand secretion) by tracheal cells is essential for patterning the embryonic mouse trachea's cartilage and muscle. RNA sequencing indicated that Wls differentially modulated the expression of BMP signaling molecules. We tested whether BMP signaling, induced by epithelial Wnt ligands, mediates cartilage formation. Deletion of Bmp4 from respiratory tract mesenchyme impaired tracheal cartilage formation that was replaced by ectopic smooth muscle, recapitulating the phenotype observed after epithelial deletion of Wls in the embryonic trachea. Ectopic muscle was caused in part by anomalous differentiation and proliferation of smooth muscle progenitors rather than tracheal cartilage progenitors. Mesenchymal deletion of Bmp4 impaired expression of Wnt/β-catenin target genes, including targets of WNT signaling: Notum and Axin2. In vitro, recombinant (r)BMP4 rescued the expression of Notum in Bmp4-deficient tracheal mesenchymal cells and induced Notum promoter activity via SMAD1/5. RNA sequencing of Bmp4-deficient tracheas identified genes essential for chondrogenesis and muscle development coregulated by BMP and WNT signaling. During tracheal morphogenesis, WNT signaling induces Bmp4 in mesenchymal progenitors to promote cartilage differentiation and restrict trachealis muscle. In turn, Bmp4 differentially regulates the expression of Wnt/β-catenin targets to attenuate mesenchymal WNT signaling and to further support chondrogenesis.
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Affiliation(s)
- Natalia Bottasso-Arias
- 1Neonatology and Pulmonary Biology Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Lauren Leesman
- 1Neonatology and Pulmonary Biology Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Kaulini Burra
- 1Neonatology and Pulmonary Biology Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - John Snowball
- 1Neonatology and Pulmonary Biology Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Ronak Shah
- 1Neonatology and Pulmonary Biology Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio,2University of Cincinnati Honors Program, Cincinnati, Ohio
| | - Megha Mohanakrishnan
- 1Neonatology and Pulmonary Biology Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio,2University of Cincinnati Honors Program, Cincinnati, Ohio
| | - Yan Xu
- 1Neonatology and Pulmonary Biology Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio,3Universtiy of Cincinnati, College of Medicine, Cincinnati, Ohio
| | - Debora Sinner
- 1Neonatology and Pulmonary Biology Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio,3Universtiy of Cincinnati, College of Medicine, Cincinnati, Ohio
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13
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Ramesova A, Vesela B, Svandova E, Lesot H, Matalova E. Caspase-9 inhibition decreases expression of Mmp9 during chondrogenesis. Histochem Cell Biol 2022; 157:403-413. [PMID: 34999953 DOI: 10.1007/s00418-021-02067-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2021] [Indexed: 01/03/2023]
Abstract
Besides cell death, caspase-9 participates in non-apoptotic events, including cell differentiation. To evaluate a possible impact on the expression of chondrogenic/osteogenic factors, a caspase-9 inhibitor was tested in vitro. For this purpose, mouse forelimb-derived micromass cultures, the most common chondrogenic in vitro model, were used. The following analyses were performed based on polymerase chain reaction (PCR) arrays and real-time PCR. The expression of several chondrogenesis-related genes was shown to be altered, some of which may impact chondrogenic differentiation (Bmp4, Bmp7, Sp7, Gli1), mineral deposition (Alp, Itgam) or the remodelling of the extracellular matrix (Col1a2, Mmp9) related to endochondral ossification. From the cluster of genes with altered expression, Mmp9 showed the most significant decrease in expression, of more than 50-fold. Additionally, we determined the possible impact of caspase-9 downregulation on the expression of other Mmp genes. A mild increase in Mmp14 was observed, but there was no change in the expression of other studied Mmp genes (-2, -3, -8, -10, -12, -13). Interestingly, inhibition of Mmp9 in micromasses led to decreased expression of some chondrogenic markers related to caspase-9. These samples also showed a decreased expression of caspase-9 itself, suggesting a bidirectional regulation of these two enzymes. These results indicate a specific impact of caspase-9 inhibition on the expression of Mmp9. The localisation of these two enzymes overlaps in resting, proliferative and pre-hypertrophic chondrocytes during in vivo development, which supports their multiple functions, either apoptotic or non-apoptotic. Notably, a coincidental expression pattern was identified in Pik3cg, a possible candidate for Mmp9 regulation.
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Affiliation(s)
- A Ramesova
- Laboratory of Odontogenesis and Osteogenesis, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.,Department of Physiology, Faculty of Veterinary Medicine, Veterinary University, Brno, Czech Republic
| | - B Vesela
- Laboratory of Odontogenesis and Osteogenesis, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.,Department of Physiology, Faculty of Veterinary Medicine, Veterinary University, Brno, Czech Republic
| | - E Svandova
- Laboratory of Odontogenesis and Osteogenesis, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic. .,Department of Physiology, Faculty of Veterinary Medicine, Veterinary University, Brno, Czech Republic.
| | - H Lesot
- Laboratory of Odontogenesis and Osteogenesis, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic
| | - E Matalova
- Laboratory of Odontogenesis and Osteogenesis, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.,Department of Physiology, Faculty of Veterinary Medicine, Veterinary University, Brno, Czech Republic
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14
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Kiyokawa H, Morimoto M. Molecular crosstalk in tracheal development and its recurrence in adult tissue regeneration. Dev Dyn 2021; 250:1552-1567. [PMID: 33840142 PMCID: PMC8596979 DOI: 10.1002/dvdy.345] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 12/17/2022] Open
Abstract
The trachea is a rigid air duct with some mobility, which comprises the upper region of the respiratory tract and delivers inhaled air to alveoli for gas exchange. During development, the tracheal primordium is first established at the ventral anterior foregut by interactions between the epithelium and mesenchyme through various signaling pathways, such as Wnt, Bmp, retinoic acid, Shh, and Fgf, and then segregates from digestive organs. Abnormalities in this crosstalk result in lethal congenital diseases, such as tracheal agenesis. Interestingly, these molecular mechanisms also play roles in tissue regeneration in adulthood, although it remains less understood compared with their roles in embryonic development. In this review, we discuss cellular and molecular mechanisms of trachea development that regulate the morphogenesis of this simple tubular structure and identities of individual differentiated cells. We also discuss how the facultative regeneration capacity of the epithelium is established during development and maintained in adulthood.
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Affiliation(s)
- Hirofumi Kiyokawa
- Laboratory for Lung Development and RegenerationRIKEN Center for Biosystems Dynamics ResearchKobeJapan
| | - Mitsuru Morimoto
- Laboratory for Lung Development and RegenerationRIKEN Center for Biosystems Dynamics ResearchKobeJapan
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15
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Zhang J, Lin C, Song Y, Chen J. BMP4/ALK3 deficiency leads to Meckel's cartilage truncation mimicking the mandible Tessier 30 cleft. Oral Dis 2021; 28:1215-1227. [PMID: 33759298 DOI: 10.1111/odi.13855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/22/2021] [Accepted: 03/16/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE In chondrogenesis, BMP signaling was inferred to exhibit regional specificity during Meckel's cartilage morphogenesis. This study aimed to explore the differences in BMP signaling activity between different parts of Meckel's cartilage and the impacts of BMP4 or ALK3 deficiency on the development of Meckel's cartilage during embryogenesis. MATERIALS AND METHODS The BRE-gal reporter mouse line was utilized to gain an overall picture of canonical BMP signaling activity, as assessed by X-gal staining. Mouse models lacking either Bmp4 or Alk3 in neural crest cells (Wnt1-Cre;Bmp4fl/fl and Wnt1-Cre;Alk3fl/fl ) were generated to explore the morphogenesis of Meckel's cartilage and the mandibular symphysis, as assessed by skeletal staining, histology, and immunostaining. RESULTS Different parts of Meckel's cartilage exhibited activation of different combinations of BMP signaling pathways. In Wnt1-Cre;Bmp4fl/fl mutants, Sox9+ condensation of the chondrogenic rostral process failed to form, and the V-shaped Runx2+ tissue was split in the median mandibular symphysis. The Wnt1-Cre;Bmp4fl/fl and Wnt1-Cre;Alk3fl/fl mouse models both exhibited truncated Meckel's cartilage, aberrant mandibular intramembranous bone, and tongue muscle abnormalities. CONCLUSIONS The central hard-tissue loss of both mutant mouse models led to a mandibular symphysis cleft, mimicking the typical sign of the median mandible Tessier 30 cleft in humans.
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Affiliation(s)
- Jian Zhang
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Chensheng Lin
- Fujian Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Yingnan Song
- Department of Physiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,Translational Medicine Research Center, Guizhou Medical University, Guiyang, China
| | - Jiang Chen
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
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16
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Reed KSM, Ulici V, Kim C, Chubinskaya S, Loeser RF, Phanstiel DH. Transcriptional response of human articular chondrocytes treated with fibronectin fragments: an in vitro model of the osteoarthritis phenotype. Osteoarthritis Cartilage 2021; 29:235-247. [PMID: 33248223 PMCID: PMC7870543 DOI: 10.1016/j.joca.2020.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/19/2020] [Accepted: 09/14/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Fibronectin is a matrix protein that is fragmented during cartilage degradation in osteoarthritis (OA). Treatment of chondrocytes with fibronectin fragments (FN-f) has been used to model OA in vitro, but the system has not been fully characterized. This study sought to define the transcriptional response of chondrocytes to FN-f, and directly compare it to responses traditionally observed in OA. DESIGN Normal human femoral chondrocytes isolated from tissue donors were treated with either FN-f or PBS (control) for 3, 6, or 18 h. RNA-seq libraries were compared between time-matched FN-f and control samples in order to identify changes in gene expression over time. Differentially expressed genes were compared to a published OA gene set and used for pathway, transcription factor motif, and kinome analysis. RESULTS FN-f treatment resulted in 3,914 differentially expressed genes over the time course. Genes that are up- or downregulated in OA were significantly up- (P < 0.00001) or downregulated (P < 0.0004) in response to FN-f. Early response genes were involved in proinflammatory pathways, whereas many late response genes were involved in ferroptosis. The promoters of upregulated genes were enriched for NF-κB, AP-1, and IRF motifs. Highly upregulated kinases included CAMK1G, IRAK2, and the uncharacterized kinase DYRK3, while growth factor receptors TGFBR2 and FGFR2 were downregulated. CONCLUSIONS FN-f treatment of normal human articular chondrocytes recapitulated many key aspects of the OA chondrocyte phenotype. This in vitro model is promising for future OA studies, especially considering its compatibility with genomics and genome-editing techniques.
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Affiliation(s)
- K S M Reed
- Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA; Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, 27599, USA.
| | - V Ulici
- Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA; Division of Rheumatology, Allergy and Immunology, University of North Carolina, Chapel Hill, NC, USA.
| | - C Kim
- Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA; Division of Rheumatology, Allergy and Immunology, University of North Carolina, Chapel Hill, NC, USA.
| | - S Chubinskaya
- Department of Pediatrics, Rush University Medical Center, Chicago, IL, USA.
| | - R F Loeser
- Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA; Division of Rheumatology, Allergy and Immunology, University of North Carolina, Chapel Hill, NC, USA.
| | - D H Phanstiel
- Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA; Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, 27599, USA; Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, USA.
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17
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Galea GL, Zein MR, Allen S, Francis-West P. Making and shaping endochondral and intramembranous bones. Dev Dyn 2020; 250:414-449. [PMID: 33314394 PMCID: PMC7986209 DOI: 10.1002/dvdy.278] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/13/2020] [Accepted: 11/20/2020] [Indexed: 12/13/2022] Open
Abstract
Skeletal elements have a diverse range of shapes and sizes specialized to their various roles including protecting internal organs, locomotion, feeding, hearing, and vocalization. The precise positioning, size, and shape of skeletal elements is therefore critical for their function. During embryonic development, bone forms by endochondral or intramembranous ossification and can arise from the paraxial and lateral plate mesoderm or neural crest. This review describes inductive mechanisms to position and pattern bones within the developing embryo, compares and contrasts the intrinsic vs extrinsic mechanisms of endochondral and intramembranous skeletal development, and details known cellular processes that precisely determine skeletal shape and size. Key cellular mechanisms are employed at distinct stages of ossification, many of which occur in response to mechanical cues (eg, joint formation) or preempting future load‐bearing requirements. Rapid shape changes occur during cellular condensation and template establishment. Specialized cellular behaviors, such as chondrocyte hypertrophy in endochondral bone and secondary cartilage on intramembranous bones, also dramatically change template shape. Once ossification is complete, bone shape undergoes functional adaptation through (re)modeling. We also highlight how alterations in these cellular processes contribute to evolutionary change and how differences in the embryonic origin of bones can influence postnatal bone repair. Compares and contrasts Endochondral and intramembranous bone development Reviews embryonic origins of different bones Describes the cellular and molecular mechanisms of positioning skeletal elements. Describes mechanisms of skeletal growth with a focus on the generation of skeletal shape
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Affiliation(s)
- Gabriel L Galea
- Developmental Biology and Cancer, UCL GOS Institute of Child Health, London, UK.,Comparative Bioveterinary Sciences, Royal Veterinary College, London, UK
| | - Mohamed R Zein
- Centre for Craniofacial and Regenerative Biology, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK
| | - Steven Allen
- Comparative Bioveterinary Sciences, Royal Veterinary College, London, UK
| | - Philippa Francis-West
- Centre for Craniofacial and Regenerative Biology, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK
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18
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Saito K, Chiba Y, Yamada A, Fukumoto S. Identification and function analysis of ameloblast differentiation-related molecules using mouse incisors. PEDIATRIC DENTAL JOURNAL 2020. [DOI: 10.1016/j.pdj.2020.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Nakayama N, Pothiawala A, Lee JY, Matthias N, Umeda K, Ang BK, Huard J, Huang Y, Sun D. Human pluripotent stem cell-derived chondroprogenitors for cartilage tissue engineering. Cell Mol Life Sci 2020; 77:2543-2563. [PMID: 31915836 PMCID: PMC11104892 DOI: 10.1007/s00018-019-03445-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 02/06/2023]
Abstract
The cartilage of joints, such as meniscus and articular cartilage, is normally long lasting (i.e., permanent). However, once damaged, especially in large animals and humans, joint cartilage is not spontaneously repaired. Compensating the lack of repair activity by supplying cartilage-(re)forming cells, such as chondrocytes or mesenchymal stromal cells, or by transplanting a piece of normal cartilage, has been the basis of therapy for biological restoration of damaged joint cartilage. Unfortunately, current biological therapies face problems on a number of fronts. The joint cartilage is generated de novo from a specialized cell type, termed a 'joint progenitor' or 'interzone cell' during embryogenesis. Therefore, embryonic chondroprogenitors that mimic the property of joint progenitors might be the best type of cell for regenerating joint cartilage in the adult. Pluripotent stem cells (PSCs) are expected to differentiate in culture into any somatic cell type through processes that mimic embryogenesis, making human (h)PSCs a promising source of embryonic chondroprogenitors. The major research goals toward the clinical application of PSCs in joint cartilage regeneration are to (1) efficiently generate lineage-specific chondroprogenitors from hPSCs, (2) expand the chondroprogenitors to the number needed for therapy without loss of their chondrogenic activity, and (3) direct the in vivo or in vitro differentiation of the chondroprogenitors to articular or meniscal (i.e., permanent) chondrocytes rather than growth plate (i.e., transient) chondrocytes. This review is aimed at providing the current state of research toward meeting these goals. We also include our recent achievement of successful generation of "permanent-like" cartilage from long-term expandable, hPSC-derived ectomesenchymal chondroprogenitors.
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Affiliation(s)
- Naoki Nakayama
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston Medical School, 1825 Pressler St., Houston, TX, 77030, USA.
- Department of Orthopaedic Surgery, The University of Texas Health Science Center at Houston Medical School, Houston, TX, USA.
| | - Azim Pothiawala
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston Medical School, 1825 Pressler St., Houston, TX, 77030, USA
| | - John Y Lee
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston Medical School, 1825 Pressler St., Houston, TX, 77030, USA
- Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Nadine Matthias
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston Medical School, 1825 Pressler St., Houston, TX, 77030, USA
| | - Katsutsugu Umeda
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston Medical School, 1825 Pressler St., Houston, TX, 77030, USA
- Department of Pediatrics, Kyoto University School of Medicine, Kyoto, Japan
| | - Bryan K Ang
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston Medical School, 1825 Pressler St., Houston, TX, 77030, USA
- Weil Cornell Medicine, New York, NY, USA
| | - Johnny Huard
- Department of Orthopaedic Surgery, The University of Texas Health Science Center at Houston Medical School, Houston, TX, USA
- Steadman Philippon Research Institute, Vail, CO, USA
| | - Yun Huang
- Institute of Bioscience and Technology, Texas A&M University, Houston, TX, USA
| | - Deqiang Sun
- Institute of Bioscience and Technology, Texas A&M University, Houston, TX, USA
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20
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Campos Y, Almirall A, Fuentes G, Bloem HL, Kaijzel EL, Cruz LJ. Tissue Engineering: An Alternative to Repair Cartilage. TISSUE ENGINEERING PART B-REVIEWS 2020; 25:357-373. [PMID: 30913997 DOI: 10.1089/ten.teb.2018.0330] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Herein we review the state-of-the-art in tissue engineering for repair of articular cartilage. First, we describe the molecular, cellular, and histologic structure and function of endogenous cartilage, focusing on chondrocytes, collagens, extracellular matrix, and proteoglycans. We then explore in vitro cell culture on scaffolds, discussing the difficulties involved in maintaining or obtaining a chondrocytic phenotype. Next, we discuss the diverse compounds and designs used for these scaffolds, including natural and synthetic biomaterials and porous, fibrous, and multilayer architectures. We then report on the mechanical properties of different cell-loaded scaffolds, and the success of these scaffolds following in vivo implantation in small animals, in terms of generating tissue that structurally and functionally resembles native tissue. Last, we highlight future trends in this field. We conclude that despite major technical advances made over the past 15 years, and continually improving results in cartilage repair experiments in animals, the development of clinically useful implants for regeneration of articular cartilage remains a challenge
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Affiliation(s)
- Yaima Campos
- 1Biomaterials Center, Havana University, LA Habana, Cuba.,2Translational Nanobiomaterials and Imaging, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Gastón Fuentes
- 1Biomaterials Center, Havana University, LA Habana, Cuba.,2Translational Nanobiomaterials and Imaging, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Hans L Bloem
- 2Translational Nanobiomaterials and Imaging, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Eric L Kaijzel
- 2Translational Nanobiomaterials and Imaging, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Luis J Cruz
- 2Translational Nanobiomaterials and Imaging, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
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21
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Bone Morphogenetic Proteins for Nucleus Pulposus Regeneration. Int J Mol Sci 2020; 21:ijms21082720. [PMID: 32295299 PMCID: PMC7215319 DOI: 10.3390/ijms21082720] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/09/2020] [Accepted: 04/11/2020] [Indexed: 12/15/2022] Open
Abstract
Matrix production by nucleus pulposus (NP) cells, the cells residing in the center of the intervertebral disc, can be stimulated by growth factors. Bone morphogenetic proteins (BMPs) hold great promise. Although BMP2 and BMP7 have been used most frequently, other BMPs have also shown potential for NP regeneration. Heterodimers may be more potent than single homodimers, but it is not known whether combinations of homodimers would perform equally well. In this study, we compared BMP2, BMP4, BMP6, and BMP7, their combinations and heterodimers, for regeneration by human NP cells. The BMPs investigated induced variable matrix deposition by NP cells. BMP4 was the most potent, both in the final neotissue glysosaminoglycan content and incorporation efficiency. Heterodimers BMP2/6H and BMP2/7H were more potent than their respective homodimer combinations, but not the BMP4/7H heterodimer. The current results indicate that BMP4 might have a high potential for regeneration of the intervertebral disc. Moreover, the added value of BMP heterodimers over their respective homodimer BMP combinations depends on the BMP combination applied.
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22
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Riedl M, Witzmann C, Koch M, Lang S, Kerschbaum M, Baumann F, Krutsch W, Docheva D, Alt V, Pfeifer C. Attenuation of Hypertrophy in Human MSCs via Treatment with a Retinoic Acid Receptor Inverse Agonist. Int J Mol Sci 2020; 21:ijms21041444. [PMID: 32093330 PMCID: PMC7073129 DOI: 10.3390/ijms21041444] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 02/07/2023] Open
Abstract
In vitro chondrogenically differentiated mesenchymal stem cells (MSCs) have a tendency to undergo hypertrophy, mirroring the fate of transient “chondrocytes” in the growth plate. As hypertrophy would result in ossification, this fact limits their use in cartilage tissue engineering applications. During limb development, retinoic acid receptor (RAR) signaling exerts an important influence on cell fate of mesenchymal progenitors. While retinoids foster hypertrophy, suppression of RAR signaling seems to be required for chondrogenic differentiation. Therefore, we hypothesized that treatment of chondrogenically differentiating hMSCs with the RAR inverse agonist, BMS204,493 (further named BMS), would attenuate hypertrophy. We induced hypertrophy in chondrogenic precultured MSC pellets by the addition of bone morphogenetic protein 4. Direct activation of the RAR pathway by application of the physiological RAR agonist retinoic acid (RA) further enhanced the hypertrophic phenotype. However, BMS treatment reduced hypertrophic conversion in hMSCs, shown by decreased cell size, number of hypertrophic cells, and collagen type X deposition in histological analyses. BMS effects were dependent on the time point of application and strongest after early treatment during chondrogenic precultivation. The possibility of modifing hypertrophic cartilage via attenuation of RAR signaling by BMS could be helpful in producing stable engineered tissue for cartilage regeneration.
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Affiliation(s)
- Moritz Riedl
- Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (M.R.); (M.K.); (S.L.); (M.K.); (F.B.); (W.K.); (V.A.)
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (C.W.); (D.D.)
| | - Christina Witzmann
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (C.W.); (D.D.)
| | - Matthias Koch
- Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (M.R.); (M.K.); (S.L.); (M.K.); (F.B.); (W.K.); (V.A.)
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (C.W.); (D.D.)
| | - Siegmund Lang
- Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (M.R.); (M.K.); (S.L.); (M.K.); (F.B.); (W.K.); (V.A.)
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (C.W.); (D.D.)
| | - Maximilian Kerschbaum
- Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (M.R.); (M.K.); (S.L.); (M.K.); (F.B.); (W.K.); (V.A.)
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (C.W.); (D.D.)
| | - Florian Baumann
- Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (M.R.); (M.K.); (S.L.); (M.K.); (F.B.); (W.K.); (V.A.)
| | - Werner Krutsch
- Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (M.R.); (M.K.); (S.L.); (M.K.); (F.B.); (W.K.); (V.A.)
| | - Denitsa Docheva
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (C.W.); (D.D.)
| | - Volker Alt
- Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (M.R.); (M.K.); (S.L.); (M.K.); (F.B.); (W.K.); (V.A.)
| | - Christian Pfeifer
- Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (M.R.); (M.K.); (S.L.); (M.K.); (F.B.); (W.K.); (V.A.)
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, Regensburg University Medical Center, 93053 Regensburg, Germany; (C.W.); (D.D.)
- Correspondence:
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Liu Z, Ramachandran J, Vokes SA, Gray RS. Regulation of terminal hypertrophic chondrocyte differentiation in Prmt5 mutant mice modeling infantile idiopathic scoliosis. Dis Model Mech 2019; 12:dmm.041251. [PMID: 31848143 PMCID: PMC6955203 DOI: 10.1242/dmm.041251] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 11/18/2019] [Indexed: 12/20/2022] Open
Abstract
Idiopathic scoliosis (IS) is the most common type of musculoskeletal defect affecting children worldwide, and is classified by age of onset, location and degree of spine curvature. Although rare, IS with onset during infancy is the more severe and rapidly progressive form of the disease, associated with increased mortality due to significant respiratory compromise. The pathophysiology of IS, in particular for infantile IS, remains elusive. Here, we demonstrate the role of PRMT5 in the infantile IS phenotype in mouse. Conditional genetic ablation of PRMT5 in osteochondral progenitors results in impaired terminal hypertrophic chondrocyte differentiation and asymmetric defects of endochondral bone formation in the perinatal spine. Analysis of these several markers of endochondral ossification revealed increased type X collagen (COLX) and Ihh expression, coupled with a dramatic reduction in Mmp13 and RUNX2 expression, in the vertebral growth plate and in regions of the intervertebral disc in the Prmt5 conditional mutant mice. We also demonstrate that PRMT5 has a continuous role in the intervertebral disc and vertebral growth plate in adult mice. Altogether, our results establish PRMT5 as a critical promoter of terminal hypertrophic chondrocyte differentiation and endochondral bone formation during spine development and homeostasis. This article has an associated First Person interview with the first author of the paper. Summary: Loss of Prmt5 in osteochondral progenitors impairs terminal hypertrophic chondrocyte differentiation, leading to defects in endochondral bone formation and models infantile idiopathic scoliosis in mouse.
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Affiliation(s)
- Zhaoyang Liu
- Department of Pediatrics, Dell Pediatric Research Institute, 1400 Barbara Jordan Blvd, The University of Texas at Austin, Dell Medical School, Austin, TX 78723, USA
| | - Janani Ramachandran
- Department of Molecular Biosciences, 2500 Speedway, The University of Texas at Austin, Austin, TX 78712, USA
| | - Steven A Vokes
- Department of Molecular Biosciences, 2500 Speedway, The University of Texas at Austin, Austin, TX 78712, USA
| | - Ryan S Gray
- Department of Pediatrics, Dell Pediatric Research Institute, 1400 Barbara Jordan Blvd, The University of Texas at Austin, Dell Medical School, Austin, TX 78723, USA .,Department of Nutritional Sciences, 200 W 24th Street, The University of Texas at Austin, Austin, TX 78712, USA
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Gene expression profiles of early chondrogenic markers in dedifferentiated fat cells stimulated by bone morphogenetic protein 4 under monolayer and spheroid culture conditions in vitro. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.odw.2016.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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25
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Sinner DI, Carey B, Zgherea D, Kaufman KM, Leesman L, Wood RE, Rutter MJ, de Alarcon A, Elluru RG, Harley JB, Whitsett JA, Trapnell BC. Complete Tracheal Ring Deformity. A Translational Genomics Approach to Pathogenesis. Am J Respir Crit Care Med 2019; 200:1267-1281. [PMID: 31215789 PMCID: PMC6857493 DOI: 10.1164/rccm.201809-1626oc] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 06/17/2019] [Indexed: 12/12/2022] Open
Abstract
Rationale: Complete tracheal ring deformity (CTRD) is a rare congenital abnormality of unknown etiology characterized by circumferentially continuous or nearly continuous cartilaginous tracheal rings, variable degrees of tracheal stenosis and/or shortening, and/or pulmonary arterial sling anomaly.Objectives: To test the hypothesis that CTRD is caused by inherited or de novo mutations in genes required for normal tracheal development.Methods: CTRD and normal tracheal tissues were examined microscopically to define the tracheal abnormalities present in CTRD. Whole-exome sequencing was performed in children with CTRD and their biological parents ("trio analysis") to identify gene variants in patients with CTRD. Mutations were confirmed by Sanger sequencing, and their potential impact on structure and/or function of encoded proteins was examined using human gene mutation databases. Relevance was further examined by comparison with the effects of targeted deletion of murine homologs important to tracheal development in mice.Measurements and Main Results: The trachealis muscle was absent in all of five patients with CTRD. Exome analysis identified six de novo, three recessive, and multiple compound-heterozygous or rare hemizygous variants in children with CTRD. De novo variants were identified in SHH (Sonic Hedgehog), and inherited variants were identified in HSPG2 (perlecan), ROR2 (receptor tyrosine kinase-like orphan receptor 2), and WLS (Wntless), genes involved in morphogenetic pathways known to mediate tracheoesophageal development in mice.Conclusions: The results of the present study demonstrate that absence of the trachealis muscle is associated with CTRD. Variants predicted to cause disease were identified in genes encoding Hedgehog and Wnt signaling pathway molecules, which are critical to cartilage formation and normal upper airway development in mice.
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Affiliation(s)
- Debora I. Sinner
- Division of Neonatology
- Division of Pulmonary Biology
- Department of Pediatrics and
| | | | | | - K. M. Kaufman
- Center for Autoimmune Genomics and Etiology, and
- Department of Pediatrics and
- U.S. Department of Veterans Affairs Medical Center, Cincinnati, Ohio
| | - Lauren Leesman
- Division of Neonatology
- Division of Pulmonary Biology
- Department of Pediatrics and
| | | | - Michael J. Rutter
- Division of Ear Nose and Throat Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Alessandro de Alarcon
- Division of Ear Nose and Throat Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Ravindhra G. Elluru
- Division of Ear Nose and Throat Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - John B. Harley
- Center for Autoimmune Genomics and Etiology, and
- Department of Pediatrics and
- U.S. Department of Veterans Affairs Medical Center, Cincinnati, Ohio
| | - Jeffrey A. Whitsett
- Division of Neonatology
- Division of Pulmonary Biology
- Department of Pediatrics and
| | - Bruce C. Trapnell
- Division of Neonatology
- Division of Pulmonary Biology
- Translational Pulmonary Science Center
- Department of Pediatrics and
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio; and
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26
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Sharma AC, Srivastava RN, Srivastava SR, Agrahari A, Singh A, Parmar D. Evaluation of the association between a single-nucleotide polymorphism of bone morphogenetic proteins 5 gene and risk of knee osteoarthritis. J Postgrad Med 2019; 63:151-156. [PMID: 28695869 PMCID: PMC5525478 DOI: 10.4103/jpgm.jpgm_450_16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Background: Osteoarthritis (OA) is a chronic degenerative disorder probably affected by both genetic and environmental causes. Bone morphogenetic proteins (BMPs) are bone-derived factors that can induce new bone formation. Single-nucleotide polymorphisms (SNPs) of BMP5 gene alters the transcriptional activity of the BMP5 promoter that has been involved in OA susceptibility. This case–control study investigated the association of rs1470527 and rs9382564 SNP of BMP5 gene with susceptibility to knee OA (KOA). Materials and Methods: A total of 499 cases with radiographic KOA and 458 age- and sex-matched healthy controls were enrolled. Venous blood samples were obtained from all the cases as well as controls for polymerase chain reaction-restriction fragment length polymorphism. Results: The genotype distribution for rs1470527 and rs9382564 SNP was significantly different in cases and controls (P < 0.0001). Within both the SNPs of BMP5 gene, genotype CT and TT were significantly (P < 0.0001) associated with KOA as compared to the CC genotype. T allele of both the studied SNP was significantly associated with KOA (P < 0.0001). The allele frequencies of rs1470527 were 0.56(T) and 0.44(C) in cases and 0.33(T) and 0.67(C) in controls and in rs9382564 were 0.57(C) and 0.43(T) in cases and 0.71(C) and 0.29(T) in controls. Further in relation with clinical severity of OA, we observed signification association of TT genotype with both visual analog scale (P < 0.0001) and Western Ontario and McMaster Universities score (P < 0.05). Conclusion: Our results indicate significant association of rs1470527 and rs9382564 polymorphism of BMP5 gene with KOA.
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Affiliation(s)
- A C Sharma
- Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - R N Srivastava
- Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - S R Srivastava
- Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - A Agrahari
- Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - A Singh
- Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - D Parmar
- Developmental Toxicology Division, IITR, Lucknow, Uttar Pradesh, India
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Wang T, Nimkingratana P, Smith CA, Cheng A, Hardingham TE, Kimber SJ. Enhanced chondrogenesis from human embryonic stem cells. Stem Cell Res 2019; 39:101497. [PMID: 31326745 PMCID: PMC6745516 DOI: 10.1016/j.scr.2019.101497] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/17/2019] [Accepted: 07/08/2019] [Indexed: 02/06/2023] Open
Abstract
Human embryonic stem cells (hESCs) have great potential for the repair of damaged articular cartilage. We developed a serum-free 14-day protocol for hESC differentiation into chondrocyte progenitors, which surprisingly lacked strong cartilage matrix production in in vitro tests. In order to direct these progenitors to a more mature phenotype, we investigated substituting different members of the TGFβ family in the protocol. Initially, we supplemented, or substituted GDF5 (day 11-14), with combinations of BMP7 and TGFβ-1, or -3, but these modifications yielded no improvement in matrix gene expression. However, replacing BMP4 with BMP2 (days 3-10 of the protocol) resulted in a more rapid increase in SOX9 gene expression and increased expression of chondrogenic genes SOX5, ACAN and COL2A1. The replacement of BMP4 with BMP2 also enhanced the formation of chondrogenic cell aggregates, with greater deposition of type II collagen. This change was not accompanied by hypertrophic chondrocyte marker COL10A1 expression. The results demonstrate that BMP2 has greater specificity for the generation of chondrogenic cells from hESCs than BMP4 and this was consistent in two hESC lines (HUES1 and MAN7). hESC-chondrogenic cells derived with either BMP2 or BMP4 were tested in vivo by implanting them in fibrin into osteochondral defects in the femur of RNU rats. Repaired cartilage tissue, positive for Safranin O and type II collagen was detected at 6 and 12 weeks with both cell sources, but the BMP2 cells scored higher for tissue quality (Pineda score). Therefore, BMP2 is more effective at driving chondrogenic differentiation from human pluripotent stem cells than BMP4 and the effect on the resulting chondroprogenitors is sustained in an in vivo setting.
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Affiliation(s)
- Tao Wang
- Faculty of Biology, Medicine and Health, University of Manchester, UK
| | | | | | - Aixin Cheng
- Faculty of Biology, Medicine and Health, University of Manchester, UK
| | - Timothy E Hardingham
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Susan J Kimber
- Faculty of Biology, Medicine and Health, University of Manchester, UK.
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28
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Fan L, Chen J, Tao Y, Heng BC, Yu J, Yang Z, Ge Z. Enhancement of the chondrogenic differentiation of mesenchymal stem cells and cartilage repair by ghrelin. J Orthop Res 2019; 37:1387-1397. [PMID: 30644571 DOI: 10.1002/jor.24224] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 01/08/2019] [Indexed: 02/04/2023]
Abstract
Transforming growth factor beta (TGF-β) is commonly utilized in chondrogenic differentiation protocols, but this often results in incomplete maturation of the derived chondrocytes. Gene expression analysis, quantitation of sulfated glycosaminoglycan and collagen, and histological staining were performed to assess the effects of ghrelin. The signaling pathways involved were investigated with inhibitors or targeted by shRNAs. Joint cavity delivery of TGF-β with or without ghrelin, within a rat cartilage defect model was performed to evaluate the in vivo effects of ghrelin. Ghrelin dramatically enhanced gene expression levels of SOX9, ACAN, and COL II and resulted in increased synthesis of sulfated glycosaminoglycan (sGAG) and collagen in vitro. Combined treatment with TGF-β and ghrelin synergistically enhanced the phosphorylation of ERK1/2 and DMNT3A, which accounted for increased expression of chondrogenic genes. Delivery of ghrelin in combination with TGF-β after MSC implantation within a rat osteochondral defect model significantly enhanced de novo cartilage regeneration, as compared to delivery with TGF-β alone. In conclusion, ghrelin could significantly enhance MSC chondrogenic differentiation in vitro and can also enhance cartilage regeneration in vivo when used in combination with TGF-β. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:1387-1397, 2019.
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Affiliation(s)
- Litong Fan
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Jiaqing Chen
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Yanmeng Tao
- Institute of Molecular Medicine, Peking University, Beijing, China
| | - Boon Chin Heng
- Faculty of Dentistry, the University of Hong Kong, Hong Kong SAR, China
| | - Jiakuo Yu
- Institute of Sports Medicine of Peking University 3rd Hospital, Beijing, China
| | - Zheng Yang
- Tissue Engineering Program, Life Sciences Institute, National University of Singapore, 27 Medical Drive, Singapore, 117510, Singapore
| | - Zigang Ge
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
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Antagonism of BMP signaling is insufficient to induce fibrous differentiation in primary sclerotome. Exp Cell Res 2019; 378:11-20. [PMID: 30817928 PMCID: PMC6501840 DOI: 10.1016/j.yexcr.2019.01.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 01/04/2019] [Accepted: 01/18/2019] [Indexed: 01/29/2023]
Abstract
Sclerotome is the embryonic progenitor of the axial skeleton. It was previously shown that Tgfbr2 is required in sclerotome for differentiation of fibrous skeletal tissues including the annulus fibrosus of the intervertebral disc. Alternatively, BMP signaling is required to form the vertebral body through chondrogenesis. In addition, TGFβ added to sclerotome cultures induces expression of markers for fibrous tissue differentiation but not cartilage or bone. The mechanism of how TGFβ signaling regulates this lineage decision in sclerotome is not known and could be due to the production of instructive or inhibitory signals or a combination of the two. Here we show that TGFβ antagonizes BMP/ Smad1/5 signaling in primary sclerotome likely through regulation of Noggin, an extracellular BMP antagonist, to prevent chondrogenesis. We then tested whether inhibition of BMP signaling, and inhibition of chondrogenesis, is sufficient to push cells toward the fibrous cell fate. While Noggin inhibited BMP/ Smad1/5 signaling and the formation of chondrogenic nodules in sclerotome cultures; Noggin and inhibition of BMP signaling through Gremlin or DMH2 were insufficient to induce fibrous tissue differentiation. The results suggest inhibition of BMP signaling is not sufficient to stimulate fibrous tissue differentiation and additional signals are likely required. We propose that TGFβ has a dual role in regulating sclerotome fate. First, it inhibits BMP signaling potentially through Noggin to prevent chondrogenesis and, second, it provides an unknown instructive signal to promote fibrous tissue differentiation in sclerotome. The results have implications for the design of stem cell-based therapies for skeletal diseases.
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30
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Yue S, Whalen P, Jee YH. Genetic regulation of linear growth. Ann Pediatr Endocrinol Metab 2019; 24:2-14. [PMID: 30943674 PMCID: PMC6449614 DOI: 10.6065/apem.2019.24.1.2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/07/2019] [Indexed: 12/20/2022] Open
Abstract
Linear growth occurs at the growth plate. Therefore, genetic defects that interfere with the normal function of the growth plate can cause linear growth disorders. Many genetic causes of growth disorders have already been identified in humans. However, recent genome-wide approaches have broadened our knowledge of the mechanisms of linear growth, not only providing novel monogenic causes of growth disorders but also revealing single nucleotide polymorphisms in genes that affect height in the general population. The genes identified as causative of linear growth disorders are heterogeneous, playing a role in various growth-regulating mechanisms including those involving the extracellular matrix, intracellular signaling, paracrine signaling, endocrine signaling, and epigenetic regulation. Understanding the underlying genetic defects in linear growth is important for clinicians and researchers in order to provide proper diagnoses, management, and genetic counseling, as well as to develop better treatment approaches for children with growth disorders.
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Affiliation(s)
- Shanna Yue
- Pediatric Endocrine, Metabolism and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Philip Whalen
- Pediatric Endocrine, Metabolism and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Youn Hee Jee
- Pediatric Endocrine, Metabolism and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA,Address for correspondence: Youn Hee Jee, MD Pediatric Endocrine, Metabolism and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, CRC, Room 1-3330, 10 Center Drive MSC 1103, Bethesda, MD 20892-1103, USA Tel: +1-301-435-5834 Fax: +1-301-402-0574 E-mail:
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31
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Hodgkinson T, Shen B, Diwan A, Hoyland JA, Richardson SM. Therapeutic potential of growth differentiation factors in the treatment of degenerative disc diseases. JOR Spine 2019; 2:e1045. [PMID: 31463459 PMCID: PMC6686806 DOI: 10.1002/jsp2.1045] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/16/2019] [Accepted: 02/04/2019] [Indexed: 02/06/2023] Open
Abstract
Intervertebral disc (IVD) degeneration is a major contributing factor to chronic low back pain and disability, leading to imbalance between anabolic and catabolic processes, altered extracellular matrix composition, loss of tissue hydration, inflammation, and impaired mechanical functionality. Current treatments aim to manage symptoms rather than treat underlying pathology. Therefore, IVD degeneration is a target for regenerative medicine strategies. Research has focused on understanding the molecular process of degeneration and the identification of various factors that may have the ability to halt and even reverse the degenerative process. One such family of growth factors, the growth differentiation factor (GDF) family, have shown particular promise for disc regeneration in in vitro and in vivo models of IVD degeneration. This review outlines our current understanding of IVD degeneration, and in this context, aims to discuss recent advancements in the use of GDF family members as anabolic factors for disc regeneration. An increasing body of evidence indicates that GDF family members are central to IVD homeostatic processes and are able to upregulate healthy nucleus pulposus cell marker genes in degenerative cells, induce mesenchymal stem cells to differentiate into nucleus pulposus cells and even act as chemotactic signals mobilizing resident cell populations during disc injury repair. The understanding of GDF signaling and its interplay with inflammatory and catabolic processes may be critical for the future development of effective IVD regeneration therapies.
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Affiliation(s)
- Tom Hodgkinson
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of ManchesterManchester Academic Health Sciences CentreManchesterUK
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Bojiang Shen
- St. George Clinical SchoolUniversity of New South WalesSydneyNew South WalesAustralia
| | - Ashish Diwan
- St. George Clinical SchoolUniversity of New South WalesSydneyNew South WalesAustralia
| | - Judith A. Hoyland
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of ManchesterManchester Academic Health Sciences CentreManchesterUK
- NIHR Manchester Biomedical Research Centre, Manchester University Foundation TrustManchester Academic Health Sciences CentreManchesterUK
| | - Stephen M. Richardson
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of ManchesterManchester Academic Health Sciences CentreManchesterUK
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32
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Hafsi K, McKay J, Li J, Lana JF, Macedo A, Santos GS, Murrell WD. Nutritional, metabolic and genetic considerations to optimise regenerative medicine outcome for knee osteoarthritis. J Clin Orthop Trauma 2019; 10:2-8. [PMID: 30705524 PMCID: PMC6349648 DOI: 10.1016/j.jcot.2018.10.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 10/08/2018] [Indexed: 12/20/2022] Open
Abstract
Knee osteoarthritis (KOA) is a multifactorial degenerative disorder of joints, affecting the world's population over the age of 65 and with a higher prevalence in females. KOA is responsible for many age associated joint problems such as stiffness and pain. Conventional methods for managing KOA such as nonsteroidal anti-inflammatory drugs (NSAID) may not improve pain or alter the disease progression and may have adverse side effects. Non-pharmacological management of OA is fundamental to management of functional limitations and provides effective symptom relief but has not shown that disease progression can be altered. Regenerative medicine is a relatively new approach which aims to induce cellular regeneration and promote self-healing through minimally invasive methods. The use of regenerative medicine slowed the progression of KOA and revealed significant improvements, yet further investigations are required to optimize the outcomes. Nutritional and metabolic aspects such as supplementations, vitamins and minerals were proven to have an impact on the progression of KOA. Genetic variations are rapidly inspected to identify any potential influence of these variations in the predisposition and diagnosis of KOA. Further supporting evidence suggests the potential influence of metabolic, nutritional and genetic aspects in optimizing the outcomes of regenerative medicine in the management of KOA.
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Affiliation(s)
- Kholoud Hafsi
- Emirates Integra Medical and Surgery Centre, Dubai, United Arab Emirates
| | - Janine McKay
- Emirates Integra Medical and Surgery Centre, Dubai, United Arab Emirates
| | - Jinjie Li
- Emirates Integra Medical and Surgery Centre, Dubai, United Arab Emirates
| | - José Fábio Lana
- Instituto do Osso e da Cartilagem, Indaiatuba, State of São Paulo, Brazil
| | - Alex Macedo
- Instituto do Osso e da Cartilagem, Indaiatuba, State of São Paulo, Brazil
| | | | - William D. Murrell
- Emirates Integra Medical and Surgery Centre, Dubai, United Arab Emirates
- Emirates Healthcare, Dubai, United Arab Emirates
- Landstuhl Regional Medical Center, Landstuhl, Germany
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33
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Lee JY, Matthias N, Pothiawala A, Ang BK, Lee M, Li J, Sun D, Pigeot S, Martin I, Huard J, Huang Y, Nakayama N. Pre-transplantational Control of the Post-transplantational Fate of Human Pluripotent Stem Cell-Derived Cartilage. Stem Cell Reports 2018; 11:440-453. [PMID: 30057264 PMCID: PMC6092881 DOI: 10.1016/j.stemcr.2018.06.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 06/28/2018] [Accepted: 06/29/2018] [Indexed: 01/24/2023] Open
Abstract
Cartilage pellets generated from ectomesenchymal progeny of human pluripotent stem cells (hPSCs) in vitro eventually show signs of commitment of chondrocytes to hypertrophic differentiation. When transplanted subcutaneously, most of the surviving pellets were fully mineralized by 8 weeks. In contrast, treatment with the adenylyl cyclase activator, forskolin, in vitro resulted in slightly enlarged cartilage pellets containing an increased proportion of proliferating immature chondrocytes that expressed very low levels of hypertrophic/terminally matured chondrocyte-specific genes. Forskolin treatment also enhanced hyaline cartilage formation by reducing type I collagen gene expression and increasing sulfated glycosaminoglycan accumulation in the developed cartilage. Chondrogenic mesoderm from hPSCs and dedifferentiated nasal chondrocytes responded similarly to forskolin. Furthermore, forskolin treatment in vitro increased the frequency at which the cartilage pellets maintained unmineralized chondrocytes after subcutaneous transplantation. Thus, the post-transplantational fate of chondrocytes originating from hPSC-derived chondroprogenitors can be controlled during their genesis in vitro. Forskolin/cAMP suppresses/delays BMP-induced chondrocyte maturation in vitro Forskolin supports chondrocyte proliferation and hyaline chondrogenesis in vitro Forskolin suppresses osteogenesis and BMP signaling gene expression in cartilage In vitro forskolin treatment improves in vivo maintenance of uncalcified cartilage
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Affiliation(s)
- John Y Lee
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston (UTHealth) Medical School, 1825 Pressler St., Houston, TX 77030, USA
| | - Nadine Matthias
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston (UTHealth) Medical School, 1825 Pressler St., Houston, TX 77030, USA
| | - Azim Pothiawala
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston (UTHealth) Medical School, 1825 Pressler St., Houston, TX 77030, USA
| | - Bryan K Ang
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston (UTHealth) Medical School, 1825 Pressler St., Houston, TX 77030, USA
| | - Minjung Lee
- Institute of Biosciences and Technology, College of Medicine, Texas A&M University, Houston, TX 77030, USA
| | - Jia Li
- Institute of Biosciences and Technology, College of Medicine, Texas A&M University, Houston, TX 77030, USA
| | - Deqiang Sun
- Institute of Biosciences and Technology, College of Medicine, Texas A&M University, Houston, TX 77030, USA
| | - Sebastien Pigeot
- Department of Biomedicine, University Hospital Basel, Basel CH-4031, Switzerland
| | - Ivan Martin
- Department of Biomedicine, University Hospital Basel, Basel CH-4031, Switzerland
| | - Johnny Huard
- Department of Orthopaedic Surgery, UTHealth Medical School, Houston, TX 77030, USA
| | - Yun Huang
- Institute of Biosciences and Technology, College of Medicine, Texas A&M University, Houston, TX 77030, USA
| | - Naoki Nakayama
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston (UTHealth) Medical School, 1825 Pressler St., Houston, TX 77030, USA; Department of Orthopaedic Surgery, UTHealth Medical School, Houston, TX 77030, USA.
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Notum balances Wnt signaling during tracheal cartilage development. Dev Biol 2018; 437:61-62. [DOI: 10.1016/j.ydbio.2018.02.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 11/21/2022]
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Shabbir RMK, Nalbant G, Ahmad N, Malik S, Tolun A. Homozygous CHST11 mutation in chondrodysplasia, brachydactyly, overriding digits, clino-symphalangism and synpolydactyly. J Med Genet 2018. [PMID: 29514872 DOI: 10.1136/jmedgenet-2017-105003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Carbohydrate sulfotransferase 11 (CHST11) is a membrane protein of Golgi that catalyses the transfer of sulfate to position 4 of the N-acetylgalactosamine residues of chondroitin. Chondroitin sulfate is the predominant proteoglycan in cartilage, and its sulfation is important in the developing growth plate of cartilage. A homozygous deletion encompassing part of the gene and the embedded miRNA MIR3922 had been detected in a woman with hand/foot malformation and malignant lymphoproliferative disease. Chst11-deficient mouse has severe chondrodysplasia, congenital arthritis and neonatal lethality. We searched for the causative variant for the unusual combination of limb malformations with variable expressivity accompanied by skeletal defects in a consanguineous Pakistani kindred. METHODS We performed detailed clinical investigations in family members. Homozygosity mapping using SNP genotype data was performed to map the disease locus and exome sequencing to identify the underlying molecular defect. RESULTS The limb malformations include brachydactyly, overriding digits and clino-symphalangism in hands and feet and syndactyly and hexadactyly in feet. Skeletal defects include scoliosis, dislocated patellae and fibulae and pectus excavatum. The disease locus is mapped to a 1.6 Mb region at 12q23, harbouring a homozygous in-frame deletion of 15 nucleotides in CHST11. Novel variant c.467_481del (p.L156_N160del) is deduced to lead to the deletion of five evolutionarily highly conserved amino acids and predicted as damaging to protein by in silico analysis. Our findings confirm the crucial role of CHST11 in skeletal morphogenesis and show that CHST11 defects have variable manifestations that include a variety of limb malformations and skeletal defects.
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Affiliation(s)
- Rana Muhammad Kamran Shabbir
- Human Genetics Program, Department of Animal Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Gökhan Nalbant
- Department of Molecular Biology and Genetics, Boğaziçi University, Istanbul, Turkey
| | - Nafees Ahmad
- Institute of Biomedical and Genetic Engineering, Islamabad, Pakistan
| | - Sajid Malik
- Human Genetics Program, Department of Animal Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Aslıhan Tolun
- Department of Molecular Biology and Genetics, Boğaziçi University, Istanbul, Turkey
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Su S, Dong Z. Comparative expression analyses of bone morphogenetic protein 4 ( BMP4 ) expressions in muscles of tilapia and common carp indicate that BMP4 plays a role in the intermuscular bone distribution in a dose-dependent manner. Gene Expr Patterns 2018; 27:106-113. [DOI: 10.1016/j.gep.2017.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 10/19/2017] [Accepted: 11/23/2017] [Indexed: 01/08/2023]
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Tabe S, Hikiji H, Ariyoshi W, Hashidate-Yoshida T, Shindou H, Shimizu T, Okinaga T, Seta Y, Tominaga K, Nishihara T. Lysophosphatidylcholine acyltransferase 4 is involved in chondrogenic differentiation of ATDC5 cells. Sci Rep 2017; 7:16701. [PMID: 29196633 PMCID: PMC5711957 DOI: 10.1038/s41598-017-16902-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 11/20/2017] [Indexed: 12/14/2022] Open
Abstract
Glycerophospholipids have important structural and functional roles in cells and are the main components of cellular membranes. Glycerophospholipids are formed via the de novo pathway (Kennedy pathway) and are subsequently matured in the remodeling pathway (Lands’ cycle). Lands’ cycle consists of two steps: deacylation of phospholipids by phospholipases A2 and reacylation of lysophospholipids by lysophospholipid acyltransferases (LPLATs). LPLATs play key roles in the maturation and maintenance of the fatty acid composition of biomembranes, and cell differentiation. We examined whether LPLATs are involved in chondrogenic differentiation of ATDC5 cells, which can differentiate into chondrocytes. Lysophosphatidylcholine acyltransferase 4 (LPCAT4) mRNA expression and LPCAT enzymatic activity towards 18:1-, 18:2-, 20:4-, and 22:6-CoA increased in the late stage of chondrogenic differentiation, when mineralization occurred. LPCAT4 knockdown decreased mRNA and protein levels of chondrogenic markers as well as Alcian blue staining intensity and alkaline phosphatase activity in ATDC5 cells. These results suggest that LPCAT4 plays important roles during the transition of chondrocytes into hypertrophic chondrocytes and/or a mineralized phenotype.
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Affiliation(s)
- Shirou Tabe
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu, Fukuoka, 803-8580, Japan.,Division of Oral and Maxillofacial Surgery, Department of Science of Physical Functions, Kyushu Dental University, Kitakyushu, Fukuoka, 803-8580, Japan
| | - Hisako Hikiji
- School of Oral Health Sciences, Kyushu Dental University, Kitakyushu, Fukuoka, 803-8580, Japan.
| | - Wataru Ariyoshi
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu, Fukuoka, 803-8580, Japan
| | - Tomomi Hashidate-Yoshida
- Department of Lipid Signaling, Research Institute, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Hideo Shindou
- Department of Lipid Signaling, Research Institute, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, 162-8655, Japan.,Agency for Medical Research and Development-Core Research for Evolutional Medical Science and Technology (AMED-CREST), AMED, Chiyoda-ku, Tokyo, 100-0004, Japan
| | - Takao Shimizu
- Department of Lipid Signaling, Research Institute, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, 162-8655, Japan.,Department of Lipidomics, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Toshinori Okinaga
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu, Fukuoka, 803-8580, Japan
| | - Yuji Seta
- Division of Anatomy, Department of Health Improvement, Kyushu Dental University, Kitakyushu, Fukuoka, 803-8580, Japan
| | - Kazuhiro Tominaga
- Division of Oral and Maxillofacial Surgery, Department of Science of Physical Functions, Kyushu Dental University, Kitakyushu, Fukuoka, 803-8580, Japan
| | - Tatsuji Nishihara
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu, Fukuoka, 803-8580, Japan
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MicroRNA-132 upregulation promotes matrix degradation in intervertebral disc degeneration. Exp Cell Res 2017; 359:39-49. [DOI: 10.1016/j.yexcr.2017.08.011] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 08/05/2017] [Indexed: 11/24/2022]
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39
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Yin Y, Wang Y. Association of BMP-14 rs143383 ploymorphism with its susceptibility to osteoarthritis: A meta-analysis and systematic review according to PRISMA guideline. Medicine (Baltimore) 2017; 96:e7447. [PMID: 29049177 PMCID: PMC5662343 DOI: 10.1097/md.0000000000007447] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/26/2017] [Accepted: 06/15/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a complex disease which can be caused by both environmental and genetic factors. A functional locus rs143383 of bone morphogenetic protein-14 (BMP-14) has been pointed out to be associated with OA etiology, but conflicting conclusions have been reached. To provide a more comprehensive conclusion about this issue, we performed this meta-analysis. METHODS Relevant studies were searched from electronic databases including PubMed, Chinese National Knowledge Infrastructure, Embase, and Wanfang. The strength of correlations was examined with pooled odds ratios (ORs) and 95% confidence intervals (95% CIs). Subgroup analyses stratified by ethnicity and source of control were carried out. All statistical analyses were performed with STATA software (version 12.0). RESULTS Overall, BMP-14 rs143383 polymorphism was negatively correlated with the susceptibility to knee OA and hand OA under genetic contrasts of CC versus TT, CC + TC versus TT, CC versus TT + TC, C versus T, TC versus TT (OR = 0.71, 95% CI = 0.65-0.79; OR = 0.81, 95% CI = 0.73-0.89; OR = 0.79, 95% CI = 0.71-0.86; OR = 0.85, 95% CI = 0.81-0.90; OR = 0.84, 95% CI = 0.75-0.93), and TC versus TT, CC versus TT + TC, C versus T (OR = 0.76, 95% CI = 0.65-0.89; OR = 0.79, 95% CI = 0.68-0.92; OR = 0.90, 95% CI = 0.85-0.95), respectively; similar results were observed in subgroups after stratification analyses. Additionally, the polymorphism also reduced hip OA risk in Asian group after stratified analysis by ethnicity. CONCLUSION BMP-14 rs143383 polymorphism may be a protective factor against OA occurrence.
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Matsuda Y, Hatakeyama Y, Nakashima K, Kamogashira N, Hatakeyama J, Tamaoki S, Sawa Y, Ishikawa H. Effects of a Chemically Synthesized Leucine-Rich Amelogenin Peptide (csLRAP) on Chondrogenic and Osteogenic Cells. J HARD TISSUE BIOL 2017. [DOI: 10.2485/jhtb.26.51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | | | | | | | - Junko Hatakeyama
- Section of Operative Dentistry and Endodontology, Fukuoka Dental College
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Human Pluripotent Stem Cells: Advances in Chondrogenic Differentiation and Articular Cartilage Regeneration. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s40610-016-0041-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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He P, Fu J, Wang DA. Murine pluripotent stem cells derived scaffold-free cartilage grafts from a micro-cavitary hydrogel platform. Acta Biomater 2016; 35:87-97. [PMID: 26911880 DOI: 10.1016/j.actbio.2016.02.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 01/18/2016] [Accepted: 02/18/2016] [Indexed: 12/31/2022]
Abstract
By means of appropriate cell type and scaffold, tissue-engineering approaches aim to construct grafts for cartilage repair. Pluripotent stem cells especially induced pluripotent stem cells (iPSCs) are of promising cell candidates due to the pluripotent plasticity and abundant cell source. We explored three dimensional (3D) culture and chondrogenesis of murine iPSCs (miPSCs) on an alginate-based micro-cavity hydrogel (MCG) platform in pursuit of fabricating synthetic-scaffold-free cartilage grafts. Murine embryonic stem cells (mESCs) were employed in parallel as the control. Chondrogenesis was fulfilled using a consecutive protocol via mesoderm differentiation followed by chondrogenic differentiation; subsequently, miPSC and mESC-seeded constructs were further respectively cultured in chondrocyte culture (CC) medium. Alginate phase in the constructs was then removed to generate a graft only comprised of induced chondrocytic cells and cartilaginous extracellular matrix (ECMs). We found that from the mESC-seeded constructs, formation of intact grafts could be achieved in greater sizes with relatively fewer chondrocytic cells and abundant ECMs; from miPSC-seeded constructs, relatively smaller sized cartilaginous grafts could be formed by cells with chondrocytic phenotype wrapped by abundant and better assembled collagen type II. This study demonstrated successful creation of pluripotent stem cells-derived cartilage/chondroid graft from a 3D MCG interim platform. By the support of materials and methodologies established from this study, particularly given the autologous availability of iPSCs, engineered autologous cartilage engraftment may be potentially fulfilled without relying on the limited and invasive autologous chondrocytes acquisition. STATEMENT OF SIGNIFICANCE In this study, we explored chondrogenic differentiation of pluripotent stem cells on a 3D micro-cavitary hydrogel interim platform and creation of pluripotent stem cells-derived cartilage/chondroid graft via a consecutive procedure. Our results demonstrated chondrogenic differentiation could be realized on the platform via mesoderm differentiation. The mESCs/miPSCs derived chondrocytic cells were further cultured to finally generate a pluripotent stem cells-derived scaffold-free construct based on the micro-cavitary hydrogel platform, in which alginate hydrogel could be removed finally. Our results showed that miPSC-derived graft could be formed by cells with chondrocytic phenotype wrapped by abundant and assembled collagen type II. To our knowledge, this study is the first study that initials from pluripotent stem cell seeding on 3D scaffold environment and ends with a scaffold-free chondrogenic micro-tissue. By the support of materials and methodologies established from this study, engineered autologous iPSC-derived cartilage engraftment may be potentially developed instead of autologous chondrocytes grafts that have limited source.
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Mutant GDF5 enhances ameloblast differentiation via accelerated BMP2-induced Smad1/5/8 phosphorylation. Sci Rep 2016; 6:23670. [PMID: 27030100 PMCID: PMC4814822 DOI: 10.1038/srep23670] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 03/11/2016] [Indexed: 02/04/2023] Open
Abstract
Bone morphogenetic proteins (BMPs) regulate hard tissue formation, including bone and tooth. Growth differentiation factor 5 (GDF5), a known BMP, is expressed in cartilage and regulates chondrogenesis, and mutations have been shown to cause osteoarthritis. Notably, GDF5 is also expressed in periodontal ligament tissue; however, its role during tooth development is unclear. Here, we used cell culture and in vivo analyses to determine the role of GDF5 during tooth development. GDF5 and its associated BMP receptors are expressed at the protein and mRNA levels during postnatal tooth development, particularly at a stage associated with enamel formation. Furthermore, whereas BMP2 was observed to induce evidently the differentiation of enamel-forming ameloblasts, excess GDF5 induce mildly this differentiation. A mouse model harbouring a mutation in GDF5 (W408R) showed enhanced enamel formation in both the incisors and molars, but not in the tooth roots. Overexpression of the W408R GDF5 mutant protein was shown to induce BMP2-mediated mRNA expression of enamel matrix proteins and downstream phosphorylation of Smad1/5/8. These results suggest that mutant GDF5 enhances ameloblast differentiation via accelerated BMP2-signalling.
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Klumpers DD, Mooney DJ, Smit TH. From Skeletal Development to Tissue Engineering: Lessons from the Micromass Assay. TISSUE ENGINEERING PART B-REVIEWS 2015; 21:427-37. [PMID: 25946390 DOI: 10.1089/ten.teb.2014.0704] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Damage and degeneration of the skeletal elements due to disease, trauma, and aging lead to a significant health and economical burden. To reduce this burden, skeletal tissue engineering strategies aim to regenerate functional bone and cartilage in the adult body. However, challenges still exist. Such challenges involve the identification of the external cues that determine differentiation, how to control chondrocyte hypertrophy, and how to achieve specific tissue patterns and boundaries. To address these issues, it could be insightful to look at skeletal development, a robust morphogenetic process that takes place during embryonic development and is commonly modeled in vitro by the micromass assay. In this review, we investigate what the tissue engineering field can learn from this assay. By comparing embryonic skeletal precursor cells from different anatomic locations and developmental stages in micromass, the external cues that guide lineage commitment can be identified. The signaling pathways regulating chondrocyte hypertrophy, and the cues required for tissue patterning, can be elucidated by combining the micromass assay with genetic, molecular, and engineering tools. The lessons from the micromass assay are limited by two major differences between developmental and regenerative skeletogenesis: cell type and scale. We highlight an important difference between embryonic and adult skeletal progenitor cells, in that adult progenitors are not able to form mesenchymal condensations spontaneously. Also, the mechanisms of tissue patterning need to be adjusted to the larger tissue engineering constructs. In conclusion, mechanistic insights of skeletal tissue generation gained from the micromass model could lead to improved tissue engineering strategies and constructs.
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Affiliation(s)
- Darinka D Klumpers
- 1 School of Engineering and Applied Sciences, Harvard University , Cambridge, Massachusetts.,2 Wyss Institute for Biologically Inspired Engineering, Harvard University , Boston, Massachusetts.,3 Department of Orthopedic Surgery, VU University Medical Centre MOVE Research Institute , Amsterdam, The Netherlands
| | - David J Mooney
- 1 School of Engineering and Applied Sciences, Harvard University , Cambridge, Massachusetts.,2 Wyss Institute for Biologically Inspired Engineering, Harvard University , Boston, Massachusetts
| | - Theo H Smit
- 3 Department of Orthopedic Surgery, VU University Medical Centre MOVE Research Institute , Amsterdam, The Netherlands
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Brown JP, Galassi TV, Stoppato M, Schiele NR, Kuo CK. Comparative analysis of mesenchymal stem cell and embryonic tendon progenitor cell response to embryonic tendon biochemical and mechanical factors. Stem Cell Res Ther 2015; 6:89. [PMID: 25956970 PMCID: PMC4425922 DOI: 10.1186/s13287-015-0043-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 11/07/2014] [Accepted: 03/05/2015] [Indexed: 01/14/2023] Open
Abstract
Introduction Advances in tendon engineering with mesenchymal stem cells (MSCs) are hindered by a need for cues to direct tenogenesis, and markers to assess tenogenic state. We examined the effects of factors involved in embryonic tendon development on adult MSCs, and compared MSC responses to that of embryonic tendon progenitor cells (TPCs), a model system of tenogenically differentiating cells. Methods Murine MSCs and TPCs subjected to cyclic tensile loading, transforming growth factor-β2 (TGFβ2), and fibroblast growth factor-4 (FGF4) in vitro were assessed for proliferation and mRNA levels of scleraxis, TGFβ2, tenomodulin, collagen type I and elastin. Results Before treatment, scleraxis and elastin levels in MSCs were lower than in TPCs, while other tendon markers expressed at similar levels in MSCs as TPCs. TGFβ2 alone and combined with loading were tenogenic based on increased scleraxis levels in both MSCs and TPCs. Loading alone had minimal effect. FGF4 downregulated tendon marker levels in MSCs but not in TPCs. Select tendon markers were not consistently upregulated with scleraxis, demonstrating the importance of characterizing a profile of markers. Conclusions Similar responses as TPCs to specific treatments suggest MSCs have tenogenic potential. Potentially shared mechanisms of cell function between MSCs and TPCs should be investigated in longer term studies.
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Affiliation(s)
- Jeffrey P Brown
- Department of Biomedical Engineering Tufts University, Science and Technology Center, 4 Colby Street , Medford, MA, 02155, USA.
| | - Thomas V Galassi
- Department of Biomedical Engineering Tufts University, Science and Technology Center, 4 Colby Street , Medford, MA, 02155, USA.
| | - Matteo Stoppato
- Department of Biomedical Engineering Tufts University, Science and Technology Center, 4 Colby Street , Medford, MA, 02155, USA.
| | - Nathan R Schiele
- Department of Biomedical Engineering Tufts University, Science and Technology Center, 4 Colby Street , Medford, MA, 02155, USA.
| | - Catherine K Kuo
- Department of Biomedical Engineering Tufts University, Science and Technology Center, 4 Colby Street , Medford, MA, 02155, USA. .,Cell, Molecular & Developmental Biology Program Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, 145 Harrison Avenue, Boston, MA, 02111, USA.
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Yucesoy B, Charles LE, Baker B, Burchfiel CM. Occupational and genetic risk factors for osteoarthritis: a review. Work 2015; 50:261-73. [PMID: 24004806 PMCID: PMC4562436 DOI: 10.3233/wor-131739] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a multifactorial disease with strong genetic and occupational components. Although published studies have described several risk factors for OA, very few studies have investigated the occupational and genetic factors that contribute to this debilitating condition. OBJECTIVE To describe occupational and genetic factors that may contribute to the risk of developing (OA). METHODS A literature search was conducted in PubMed using the search terms osteoarthritis, occupation, work, and genetics. RESULTS Heavy physical work load was the most common occupational risk factor for OA in several anatomical locations. Other factors include kneeling and regular stair climbing, crawling, bending and whole body vibration, and repetitive movements. Numerous studies have also shown the influence of genetic variability in the pathogenesis of OA. Genetic variants of several groups of genes e.g., cartilage extracellular matrix structural genes and the genes related to bone density have been implicated in disease pathogenesis. CONCLUSION This review shows that occupational factors were extensively studied in knee OA unlike OA of other anatomical regions. Although genetic association studies performed to date identified a number of risk variants, some of these associations have not been consistently replicated across different studies and populations. Therefore, more research is needed.
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Affiliation(s)
- Berran Yucesoy
- Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
| | - Luenda E. Charles
- Biostatistics and Epidemiology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
| | - Brent Baker
- Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
| | - Cecil M. Burchfiel
- Biostatistics and Epidemiology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
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Kim J, Shim M. Prostaglandin F2α receptor (FP) signaling regulates Bmp signaling and promotes chondrocyte differentiation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1853:500-12. [PMID: 25499765 DOI: 10.1016/j.bbamcr.2014.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 11/30/2014] [Accepted: 12/03/2014] [Indexed: 10/24/2022]
Abstract
Prostaglandins are a group of lipid signaling molecules involved in various physiological processes. In addition, prostaglandins have been implicated in the development and progression of diseases including cancer, cardiovascular disease, and arthritis. Prostaglandins exert their effects through the activation of specific G protein-coupled receptors (GPCRs). In this report, we examined the role of prostaglandin F2α receptor (FP) signaling as a regulator of chondrocyte differentiation. We found that FP expression was dramatically induced during the differentiation of chondrocytes and was up-regulated in cartilages. Forced expression of FP in ATDC5 chondrogenic cell line resulted in the increased expression of differentiation-related genes and increased synthesis of the extracellular matrix (ECM) regardless of the presence of insulin. Similarly, PGF2α treatment induced the expression of chondrogenic marker genes. In contrast, knockdown of endogenous FP expression suppressed the expression of chondrocyte marker genes and ECM synthesis. Organ culture of cartilage rudiments revealed that PGF2α induces chondrocyte hypertrophy. Additionally, FP overexpression increased the levels of Bmp-6, phospho-Smad1/5, and Bmpr1a, while knockdown of FP reduced expression of those genes. These results demonstrate that up-regulation of FP expression plays an important role in chondrocyte differentiation and modulates Bmp signaling.
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Affiliation(s)
- Joohwee Kim
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA
| | - Minsub Shim
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA.
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Pei Z, Yang Y, Kiess W, Sun C, Luo F. Dynamic profile and adipogenic role of growth differentiation factor 5 (GDF5) in the differentiation of 3T3-L1 preadipocytes. Arch Biochem Biophys 2014; 560:27-35. [PMID: 25078108 DOI: 10.1016/j.abb.2014.07.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 06/29/2014] [Accepted: 07/21/2014] [Indexed: 12/16/2022]
Abstract
Adipocyte differentiation is key to determining the number of adipocytes during the development of obesity. Recent studies have shown that growth differentiation factor-5 (GDF5) promotes brown adipogenesis, however its role in white adipogenesis is still uncertain. The aim of the present study was to investigate the effect of GDF5 on white adipogenesis using 3T3-L1 preadipocyte model. In the present study, GDF5 was found to be differentially regulated during adipocyte differentiation. GDF5 protein increased the differentiation of 3T3-L1 preadipocytes, especially when these cells were exposed to hormone cocktails without insulin. During adipogenesis, GDF5 enhanced the expression of genes related to adipocyte differentiation and caused cells to enter the S phase. Short-hairpin-RNA knockdown of GDF5 in 3T3-L1 cells was found to prevent adipogenesis induced by a standard hormone cocktail and to downregulate the expression of adipocyte genes and proteins, this impairment could be partly rescued by GDF5 protein. Collectively, these results suggest that GDF5 can promote progression of the cell-cycle and increase numbers of cells in S phase, GDF5 might play a critical role in 3T3-L1 preadipocyte differentiation.
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Affiliation(s)
- Zhou Pei
- Department of Pediatric Endocrinology and Inherited Metabolic Disease, Children's Hospital of Fudan University, Shanghai, China
| | - Yi Yang
- Institute of Pediatrics, Children's Hospital of Fudan University, Shanghai, China
| | - Wieland Kiess
- Department of Women and Child Health, Hospital for Children and Adolescents, Center for Pediatric Research, University of Leipzig, Leipzig, Germany
| | - Chengjun Sun
- Department of Pediatric Endocrinology and Inherited Metabolic Disease, Children's Hospital of Fudan University, Shanghai, China; Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Feihong Luo
- Department of Pediatric Endocrinology and Inherited Metabolic Disease, Children's Hospital of Fudan University, Shanghai, China.
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Klumpers DD, Mao AS, Smit TH, Mooney DJ. Linear patterning of mesenchymal condensations is modulated by geometric constraints. J R Soc Interface 2014; 11:20140215. [PMID: 24718453 DOI: 10.1098/rsif.2014.0215] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The development of the vertebral column starts with the formation of a linear array of mesenchymal condensations, forming the blueprint for the eventual alternating pattern of bone and cartilage. Despite growing insight into the molecular mechanisms of morphogenesis, the impact of the physical aspects of the environment is not well understood. We hypothesized that geometric boundary conditions may play a pivotal role in the linear patterning of condensations, as neighbouring tissues provide physical constraints to the cell population. To study the process of condensation and the patterning thereof under tightly controlled geometric constraints, we developed a novel in vitro model that combines micropatterning with the established micromass assay. The spacing and alignment of condensations changed with the width of the cell adhesive patterns, a phenomenon that could not be explained by cell availability alone. Moreover, the extent of chondrogenic commitment was increased on substrates with tighter geometric constraints. When the in vivo pattern of condensations was investigated in the developing vertebral column of chicken embryos, the measurements closely fit into the quantitative relation between geometric constraints and inter-condensation distance found in vitro. Together, these findings suggest a potential role of geometric constraints in skeletal patterning in a cellular process of self-organization.
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Affiliation(s)
- Darinka D Klumpers
- School of Engineering and Applied Sciences, Harvard University, , 29 Oxford St., Cambridge, MA 02138, USA
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