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Owen R, Wittkowske C, Lacroix D, Perrault CM, Reilly GC. β-glycerophosphate, not low magnitude fluid shear stress, increases osteocytogenesis in the osteoblast-to-osteocyte cell line IDG-SW3. Connect Tissue Res 2024:1-17. [PMID: 38982804 DOI: 10.1080/03008207.2024.2375065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 06/26/2024] [Indexed: 07/11/2024]
Abstract
AIM As osteoblasts deposit a mineralized collagen network, a subpopulation of these cells differentiates into osteocytes. Biochemical and mechanical stimuli, particularly fluid shear stress (FSS), are thought to regulate this, but their relative influence remains unclear. Here, we assess both biochemical and mechanical stimuli on long-term bone formation and osteocytogenesis using the osteoblast-osteocyte cell line IDG-SW3. METHODS Due to the relative novelty and uncommon culture conditions of IDG-SW3 versus other osteoblast-lineage cell lines, effects of temperature and media formulation on matrix deposition and osteocytogenesis were initially characterized. Subsequently, the relative influence of biochemical (β-glycerophosphate (βGP) and ascorbic acid 2-phosphate (AA2P)) and mechanical stimulation on osteocytogenesis was compared, with intermittent application of low magnitude FSS generated by see-saw rocker. RESULTS βGP and AA2P supplementation were required for mineralization and osteocytogenesis, with 33°C cultures retaining a more osteoblastic phenotype and 37°C cultures undergoing significantly higher osteocytogenesis. βGP concentration positively correlated with calcium deposition, whilst AA2P stimulated alkaline phosphatase (ALP) activity and collagen deposition. We demonstrate that increasing βGP concentration also significantly enhances osteocytogenesis as quantified by the expression of green fluorescent protein linked to Dmp1. Intermittent FSS (~0.06 Pa) rocker had no effect on osteocytogenesis and matrix deposition. CONCLUSIONS This work demonstrates the suitability and ease with which IDG-SW3 can be utilized in osteocytogenesis studies. IDG-SW3 mineralization was only mediated through biochemical stimuli with no detectable effect of low magnitude FSS. Osteocytogenesis of IDG-SW3 primarily occurred in mineralized areas, further demonstrating the role mineralization of the bone extracellular matrix has in osteocyte differentiation.
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Affiliation(s)
- Robert Owen
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
- INSIGNEO Institute for In Silico Medicine, University of Sheffield, Sheffield, UK
- School of Pharmacy, University of Nottingham Biodiscovery Institute, University of Nottingham, Nottingham, UK
| | - Claudia Wittkowske
- INSIGNEO Institute for In Silico Medicine, University of Sheffield, Sheffield, UK
- Department of Mechanical Engineering, University of Sheffield, Sheffield, UK
| | - Damien Lacroix
- INSIGNEO Institute for In Silico Medicine, University of Sheffield, Sheffield, UK
- Department of Mechanical Engineering, University of Sheffield, Sheffield, UK
| | - Cecile M Perrault
- INSIGNEO Institute for In Silico Medicine, University of Sheffield, Sheffield, UK
- Department of Mechanical Engineering, University of Sheffield, Sheffield, UK
| | - Gwendolen C Reilly
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
- INSIGNEO Institute for In Silico Medicine, University of Sheffield, Sheffield, UK
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Kou H, Han Q, Zhang H, Xu C, Liao L, Hou Y, Wang H, Zhang J. Impact of changes in collagen construction and molecular state on integrin - binding properties. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:1523-1536. [PMID: 38574261 DOI: 10.1080/09205063.2024.2338004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/21/2024] [Indexed: 04/06/2024]
Abstract
The interaction between the integrin and collagen is important in cell adhesion and signaling. Collagen, as the main component of extracellular matrix, is a base material for tissue engineering constructs. In tissue engineering, the collagen structure and molecule state may be altered to varying degrees in the process of processing and utilizing, thereby affecting its biological properties. In this work, the impact of changes in collagen structure and molecular state on the binding properties of collagen to integrin α2β1 and integrin specific cell adhesion were explored. The results showed that the molecular structure of collagen is destroyed under the influence of heating, freeze-grinding and irradiation, the triple helix integrity is reduced and molecular breaking degree is increased. The binding ability of collagen to integrin α2β1 is increased with the increase of triple helix integrity and decays exponentially with the increase of molecular breaking degree. The collagen molecular state can also influences the binding ability of collagen to cellular receptor. The collagen fibrils binding to integrin α2β1 and HT1080 cells is stronger than to collagen monomolecule. Meanwhile, the hybrid fibril exhibits a different cellular receptor binding performance from corresponding single species collagen fibril. These findings provide ideas for the design and development of new collagen-based biomaterials and tissue engineering research.
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Affiliation(s)
- Huizhi Kou
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Qingqiu Han
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Huihui Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Chengzhi Xu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Lixia Liao
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Yuanjing Hou
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Haibo Wang
- College of Life Science and Technology, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan, China
| | - Juntao Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
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Robles D, Brizuela A, Fernández-Domínguez M, Gil J. Osteoblastic and Bacterial Response of Hybrid Dental Implants. J Funct Biomater 2023; 14:321. [PMID: 37367285 DOI: 10.3390/jfb14060321] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/10/2023] [Accepted: 06/11/2023] [Indexed: 06/28/2023] Open
Abstract
Bacterial infections in dental implants generate peri-implantitis disease that causes bone loss and the mobility of the dental implant. It is well known that specific ranges of roughness favor the proliferation of bacteria, and it is for this reason that new dental implants called hybrids have appeared. These implants have a smooth area in the coronal part and a rough surface in the apical part. The objective of this research is the physico-chemical characterization of the surface and the osteoblastic and microbiological behavior. One-hundred and eighty discs of titanium grade 3 with three different surfaces (smooth, smooth-rough, and completely rough) were studied. The roughness was determined by white light interferometry, and the wettability and surface energy by the sessile drop technique and the application of Owens and Wendt equations. Human osteoblast SaOS-2 was cultured to determine cell adhesion, proliferation, and differentiation. Microbiological studies were performed with two common bacterial strains in oral infection, E. faecalis and S. gordonii, at different times of culture. The roughness obtained for the smooth surface was Sa = 0.23 and for the rough surface it was 1.98 μm. The contact angles were more hydrophilic for the smooth surface (61.2°) than for the rough surface (76.1°). However, the surface energy was lower for the rough surface (22.70 mJ/m2) in both its dispersive and polar components than the smooth surface (41.77 mJ/m2). Cellular activity in adhesion, proliferation, and differentiation was much higher on rough surfaces than on smooth surfaces. After 6 h of incubation, the osteoblast number in rough surfaces was more than 32% higher in relation to the smooth surface. The cell area in smooth surfaces was higher than rough surfaces. The proliferation increased and the alkaline phosphatase presented a maximum after 14 days, with the mineral content of the cells being higher in rough surfaces. In addition, the rough surfaces showed greater bacterial proliferation at the times studied and in the two strains used. Hybrid implants sacrifice the good osteoblast behavior of the coronal part of the implant in order to obstruct bacterial adhesion. The following fact should be considered by clinicians: there is a possible loss of bone fixation when preventing peri-implantitis.
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Affiliation(s)
- Daniel Robles
- Department of Translational Medicine, CEU San Pablo University, Urbanización Montepríncipe, 28925 Madrid, Spain
- Facultad de Odontología, Universidad Europea Miguel de Cervantes, C/del Padre Julio Chevalier 2, 47012 Valladolid, Spain
| | - Aritza Brizuela
- Facultad de Odontología, Universidad Europea Miguel de Cervantes, C/del Padre Julio Chevalier 2, 47012 Valladolid, Spain
| | - Manuel Fernández-Domínguez
- Department of Oral and Maxillofacial Surgery, University Hospital Monteprincipe, University CEU San Pablo, Av. de Montepríncipe, s/n, 28668 Madrid, Spain
| | - Javier Gil
- Bioengineering Institute of Technology, Facultad de Medicina y Ciencias de la Salud, Universidad Internacional de Catalunya, Josep Trueta s/n. Sant Cugat del Vallés, 08195 Barcelona, Spain
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Franceschi RT, Hallett SA, Ge C. Discoidin domain receptors; an ancient family of collagen receptors has major roles in bone development, regeneration and metabolism. FRONTIERS IN DENTAL MEDICINE 2023; 4:1181817. [PMID: 38222874 PMCID: PMC10785288 DOI: 10.3389/fdmed.2023.1181817] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024] Open
Abstract
The extracellular matrix (ECM) niche plays a critical role in determining cellular behavior during bone development including the differentiation and lineage allocation of skeletal progenitor cells to chondrocytes, osteoblasts, or marrow adipocytes. As the major ECM component in mineralized tissues, collagen has instructive as well as structural roles during bone development and is required for bone cell differentiation. Cells sense their extracellular environment using specific cell surface receptors. For many years, specific β1 integrins were considered the main collagen receptors in bone, but, more recently, the important role of a second, more primordial collagen receptor family, the discoidin domain receptors, has become apparent. This review will specifically focus on the roles of discoidin domain receptors in mineralized tissue development as well as related functions in abnormal bone formation, regeneration and metabolism.
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Affiliation(s)
- Renny T. Franceschi
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Shawn A. Hallett
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Chunxi Ge
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, United States
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Haga CL, Boregowda SV, Booker CN, Krishnappa V, Strivelli J, Cappelli E, Phinney DG. Mesenchymal stem/stromal cells from a transplanted, asymptomatic patient with Fanconi anemia exhibit an aging-like phenotype and dysregulated expression of genes implicated in hematopoiesis and myelodysplasia. Cytotherapy 2023; 25:362-368. [PMID: 36481320 PMCID: PMC10006355 DOI: 10.1016/j.jcyt.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 10/27/2022] [Accepted: 11/13/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND AIMS Fanconi anemia (FA) is an inherited bone marrow failure syndrome caused by defects in the repair of DNA inter-strand crosslinks and manifests as aplastic anemia, myelodysplastic syndrome and acute myeloid leukemia. FA also causes defects in mesenchymal stromal cell (MSC) function, but how different FA gene mutations alter function remains understudied. METHODS We compared the growth, differentiation and transcript profile of a single MSC isolate from an asymptomatic patient with FA with a FANCG nonsense mutation who underwent hematopoietic stem cell transplantation 10 years prior to that from a representative healthy donor (HD). RESULTS We show that FANCG-/- MSCs exhibit rapid onset of growth cessation, skewed bi-lineage differentiation in favor of adipogenesis and increased cellular oxidate stress consistent with an aging-like phenotype. Transcript profiling identified pathways related to cell growth, senescence, cellular stress responses and DNA replication/repair as over-represented in FANCG-/- MSC, and real-time polymerase chain reaction confirmed these MSCs expressed reduced levels of transcripts implicated in cell growth (TWIST1, FGFR2v7-8) and osteogenesis (TWIST1, RUNX2) and increased levels of transcripts regulating adipogenesis (GPR116) and insulin signaling. They also expressed reduced levels of mRNAs implicated in HSC self-maintenance and homing (KITLG, HGF, GDNF, PGF, CFB, IL-1B and CSF1) and elevated levels of those implicated in myelodysplasia (IL-6, GDF15). CONCLUSIONS Together, these findings demonstrate how inactivation of FANCG impacts MSC behavior, which parallels observed defects in osteogenesis, HSC depletion and leukemic blast formation seen in patients with FA.
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Affiliation(s)
- Christopher L Haga
- Department of Molecular Medicine, UF Scripps Biomedical Research, Jupiter, FL, USA
| | | | - Cori N Booker
- Department of Molecular Medicine, UF Scripps Biomedical Research, Jupiter, FL, USA
| | - Veena Krishnappa
- Department of Molecular Medicine, UF Scripps Biomedical Research, Jupiter, FL, USA
| | - Jacqueline Strivelli
- Department of Molecular Medicine, UF Scripps Biomedical Research, Jupiter, FL, USA
| | - Enrico Cappelli
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Donald G Phinney
- Department of Molecular Medicine, UF Scripps Biomedical Research, Jupiter, FL, USA.
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Xu F, Zheng Z, Yao M, Zhu F, Shen T, Li J, Zhu C, Yang T, Shao M, Wan Z, Fang C. A regulatory mechanism of a stepwise osteogenesis-mimicking decellularized extracellular matrix on the osteogenic differentiation of bone marrow-derived mesenchymal stem cells. J Mater Chem B 2022; 10:6171-6180. [PMID: 35766339 DOI: 10.1039/d2tb00721e] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cell-derived decellularized extracellular matrix (dECM) plays a vital role in controlling cell functions because of its similarity to the in vivo microenvironment. In the process of stem cell differentiation, the composition of the dECM is not constant but is dynamically remolded. However, there is little information regarding the dynamic regulation by the dECM of the osteogenic differentiation of stem cells. Herein, four types of stepwise dECMs (0, 7, 14, and 21 d-ECM) were prepared from bone marrow-derived mesenchymal stem cells (BMSCs) undergoing osteogenic differentiation for 0, 7, 14, and 21 days after decellularization. In vitro experiments were designed to study the regulation of BMSC osteogenesis by dECMs. The results showed that all the dECMs could support the activity and proliferation of BMSCs but had different effects on their osteogenic differentiation. The 14d-ECM promoted the osteogenesis of BMSCs significantly compared with the other dECMs. Proteomic analysis demonstrated that the composition of dECMs changed over time. The 14d ECM had higher amounts of collagen type IV alpha 2 chain (COL4A2) than the other dECMs. Furthermore, COL4A2 was obviously enriched in the activated focal adhesion kinase (FAK)/phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/protein kinase B (AKT) signaling pathways. Thus, the 14d-ECM could promote the osteogenic differentiation of BMSCs, which might be related to the high content of COL4A2 in the 14d-ECM by activating the FAK/PI3K/AKT signaling pathways.
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Affiliation(s)
- Fei Xu
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China. .,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Ziran Zheng
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China. .,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Mianfeng Yao
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China. .,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Feiya Zhu
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.
| | - Ting Shen
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.
| | - Jiang Li
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China. .,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Chao Zhu
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China. .,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Tianru Yang
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.
| | - Mengying Shao
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.
| | - Zicheng Wan
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Changyun Fang
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China. .,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, Hunan, China
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7
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Qin R, Cui Z, Zhou H, Guo R, Yao X, Wang T, Qin X, He X. Effect of lentivirus-mediated BMP2 from autologous tooth on the proliferative and osteogenic capacity of human periodontal ligament cells. J Periodontal Res 2022; 57:869-879. [PMID: 35730345 DOI: 10.1111/jre.13025] [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: 12/01/2021] [Revised: 04/28/2022] [Accepted: 05/29/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Periodontitis is a chronic progressive inflammation that invades periodontal supporting tissues, in which periodontal tissue regeneration engineering offers new hope for prevention and treatment, including seed cells, scaffolds, and growth factors. In recent years, scholars have shown that autologous teeth can be used as new bone tissue repair materials for periodontal regeneration and bone tissue repair. The aim of this study was to establish a human periodontal ligament cell line that expresses the human bone morphogenetic protein 2 gene (BMP2) in a stable manner using lentiviral mediation in order to explore the effect of BMP2 from autologous tooth on the proliferative and osteogenic capacity of human periodontal ligament cells (hPDLCs). MATERIALS AND METHODS Human periodontal ligament cells were cultured, subcultured, and identified, and then homologous recombinant lentivirus plasmid plv-BMP2 was constructed and transfected into the third passage (P3 ) hPDLCs. After that, the effect of BMP2 on its proliferation was detected by CCK-8, at the same time, the osteogenic induction of hPDLCs was carried out at 7, 14, and 21 days, and then the effect of BMP2 on its osteogenic ability was detected by alizarin red staining, alkaline phosphatase activity determination, and the mRNA expression levels of osteogenic-related genes using real-time fluorescence quantitative PCR, including alkaline phosphatase, runt-related transcription factor 2, bone sialoprotein, osteocalcin, osteopontin, and collagen I. Finally, spss26.0 software was used for statistical processing. RESULTS The results showed that cells transfected with the homologous recombinant lentiviral plasmid pLV-BMP2 had a similar morphology to normal hPDLCs, showing a typical radial arrangement; the cell proliferative capacity of the pLV-BMP2 group as measured by CCK-8 was enhanced compared with the control group and the pLV-puro group (p < .05); alizarin red staining and alkaline phosphatase activity assay showed that the osteogenic ability of pLV-BMP2 was significantly enhanced compared with the control and pLV-puro groups (p < .01), and the findings of real-time fluorescence-based quantitative PCR showed high expression of osteogenic-related genes in pLV-BMP2 group (p < .01). CONCLUSION In conclusion, a stable periodontal ligament cell line overexpressing BMP2 was successfully established by a lentivirus-mediated method, which proved that BMP2 has a strong ability to promote the proliferation and osteogenesis of hPDLCs, thereby providing an opportunity for the study of periodontal tissue regeneration as well as providing an experimental basis for the application of autologous teeth as a new type of bone repair material for periodontal therapy and even for maxillofacial bone tissue repair.
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Affiliation(s)
- Ruoshan Qin
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Ziwei Cui
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Hongli Zhou
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Ru Guo
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Xuanxuan Yao
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Tao Wang
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Xiaodong Qin
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
| | - Xiangyi He
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
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Hayashi K, Fang X, Ueda H, Miwa A, Naka T, Tsuchiya H. Bone Regeneration Using Autologous Adipose-Derived Stem Cell Spheroid Complex. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Bone defects require reconstruction using various biomaterials or non-biological materials. Stem cell spheroids can be used for scaffold-free approaches for osteogenesis. We set up a culture method for creating an optimal osteogenic adipose-derived stem cell (ADSC) spheroid complex
by measuring the expression of protein in a sequential series of culture media. After culturing ADSC spheroids for 24 hours in DMEM, the spheroids were cultured in ascorbic acid-containing medium for five days followed by osteoblast differentiation medium. One day after exchanging to osteoblast
differentiation medium, spheroids were collected and cultured for four days to obtain a spheroid complex. Each culture period was determined by analyzing the expression of collagen type I, alkaline phosphatase and integrin α5 to maximize the activity of ADSC spheroids. The expression
of collagen type I increased significantly in ascorbic acid-containing medium (p < 0.05) compared with control medium on day five, suggesting that culturing spheroids in ascorbic acid increases collagen synthesis. RNA was extracted from ADSC spheroids after 1, 3, 5, and 7 days in
each medium and RT-PCR was performed to measure integrin α5 expression. The expression was transiently high on the first day of osteoblast differentiation culture and then gradually decreased. Osteoblast differentiation medium enhanced cell adhesion in spheroids. An in vivo
study confirmed the osteogenic potential of the ADSC spheroid complex created by the established protocol. The ADSC spheroid complex stimulated bone regeneration and will be applied to the treatment of large bone defects.
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Affiliation(s)
- Katsuhiro Hayashi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, 920-8641, Japan
| | - Xang Fang
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, 920-8641, Japan
| | - Hiroshi Ueda
- Shibuya Corporation, Ko-58 Mameda-Honmachi, Kanazawa, Ishikawa, 920-8681, Japan
| | - Akihiro Miwa
- Shibuya Corporation, Ko-58 Mameda-Honmachi, Kanazawa, Ishikawa, 920-8681, Japan
| | - Toshiaki Naka
- Shibuya Corporation, Ko-58 Mameda-Honmachi, Kanazawa, Ishikawa, 920-8681, Japan
| | - Hiroyuki Tsuchiya
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, 920-8641, Japan
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The Osteogenic Differentiation of Human Dental Pulp Stem Cells through G0/G1 Arrest and the p-ERK/Runx-2 Pathway by Sonic Vibration. Int J Mol Sci 2021; 22:ijms221810167. [PMID: 34576330 PMCID: PMC8471578 DOI: 10.3390/ijms221810167] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/16/2021] [Accepted: 09/16/2021] [Indexed: 02/06/2023] Open
Abstract
Mechanical/physical stimulations modulate tissue metabolism, and this process involves multiple cellular mechanisms, including the secretion of growth factors and the activation of mechano-physically sensitive kinases. Cells and tissue can be modulated through specific vibration-induced changes in cell activity, which depend on the vibration frequency and occur via differential gene expression. However, there are few reports about the effects of medium-magnitude (1.12 g) sonic vibration on the osteogenic differentiation of human dental pulp stem cells (HDPSCs). In this study, we investigated whether medium-magnitude (1.12 g) sonic vibration with a frequency of 30, 45, or 100 Hz could affect the osteogenic differentiation of HDPSCs. Their cell morphology changed to a cuboidal shape at 45 Hz and 100 Hz, but the cells in the other groups were elongated. FACS analysis showed decreased CD 73, CD 90, and CD 105 expression at 45 Hz and 100 Hz. Additionally, the proportions of cells in the G0/G1 phase in the control, 30 Hz, 45 Hz, and 100 Hz groups after vibration were 60.7%, 65.9%, 68.3%, and 66.7%, respectively. The mRNA levels of osteogenic-specific markers, including osteonectin, osteocalcin, BMP-2, ALP, and Runx-2, increased at 45 and 100 Hz, and the ALP and calcium content was elevated in the vibration groups compared with those in the control. Additionally, the western blotting results showed that p-ERK, BSP, osteoprotegerin, and osteonectin proteins were upregulated at 45 Hz compared with the other groups. The vibration groups showed higher ALP and calcium content than the control. Vibration, especially at 100 Hz, increased the number of calcified nodes relative to the control group, as evidenced by von Kossa staining. Immunohistochemical staining demonstrated that type I and III collagen, osteonectin, and osteopontin were upregulated at 45 Hz and 100 Hz. These results suggest that medium magnitude vibration at 45 Hz induces the G0/G1 arrest of HDPSCs through the p-ERK/Runx-2 pathway and can serve as a potent stimulator of differentiation and extracellular matrix production.
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10
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Hu Z, Yang K, Hu Z, Li M, Wei H, Tang Z, Chen B, Su C, Cai D, Xu J. Determining the association between hypertension and bone metabolism markers in osteoporotic patients. Medicine (Baltimore) 2021; 100:e26276. [PMID: 34128860 PMCID: PMC8213284 DOI: 10.1097/md.0000000000026276] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 05/23/2021] [Indexed: 01/04/2023] Open
Abstract
The aim of the case study is to examine the association between hypertension and the level of bone metabolism markers in newly diagnosed osteoporotic patients.A cross-sectional study of 518 subjects was done to see the association between hypertension and the level of osteocalcin (OC), bone-specific alkaline phosphatase (B-ALP), Tartrate-resistant acid phosphatase (TRAP.5B), and 25-hydroxy vitamin D (25-OHD). There were 243 (46.9%) osteoporosis patients with hypertension. Both univariate and multivariate analysis have suggested that lower OC and 25-OHD levels were associated with hypertension. The potential confounders-adjusted OC level was significantly lower in hypertensive female group than that in the female without hypertension group [β = -0.20, 95% confidence interval (95% CI) = -0.37 to -0.03, P = .02 in final adjust model]. The potential confounders-adjusted 25-OHD level was significantly lower in hypertensive male group than that in male without hypertension group (β = -0.34, 95% CI = -0.58 to -0.10, P = .01 in final adjust model). The B-ALP and TRACP.5B levels were positively associated with hypertension in all patients or subgroup analysis. However, all the correlations had no statistical significance for the B-ALP and TRACP.5B.In conclusion, the hypertension was associated with low level of OC and 25-OHD. Hypertension probably led to low bone turnover, which may be one of the mechanisms of hypertension-related osteoporosis.
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Affiliation(s)
- Zhuoqing Hu
- Department of Cardiovascular Internal Medicine, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University
| | - Kevin Yang
- Dept of Cardiology, Sun Yat-sen University, Guangzhou
| | | | | | - Hao Wei
- Guangdong Medical University
| | | | | | - Chengbiao Su
- Department of Cardiovascular Internal Medicine, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang
| | - De Cai
- Department of Pharmacy, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Jinrong Xu
- Department of Cardiovascular Internal Medicine, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang
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11
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Pajares-Chamorro N, Wagley Y, Maduka CV, Youngstrom DW, Yeger A, Badylak SF, Hammer ND, Hankenson K, Chatzistavrou X. Silver-doped bioactive glass particles for in vivo bone tissue regeneration and enhanced methicillin-resistant Staphylococcus aureus (MRSA) inhibition. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 120:111693. [PMID: 33545854 PMCID: PMC8168684 DOI: 10.1016/j.msec.2020.111693] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 10/27/2020] [Accepted: 10/30/2020] [Indexed: 11/18/2022]
Abstract
Infection is a significant risk factor for failed healing of bone and other tissues. We have developed a sol-gel (solution-gelation) derived bioactive glass doped with silver ions (Ag-BG), tailored to provide non-cytotoxic antibacterial activity while significantly enhancing osteoblast-lineage cell growth in vitro and bone regeneration in vivo. Our objective was to engineer a biomaterial that combats bacterial infection while maintaining the capability to promote bone growth. We observed that Ag-BG inhibits bacterial growth and potentiates the efficacy of conventional antibiotic treatment. Ag-BG microparticles enhance cell proliferation and osteogenic differentiation in human bone marrow stromal cells (hBMSC) in vitro. Moreover, in vivo tests using a calvarial defect model in mice demonstrated that Ag-BG microparticles induce bone regeneration. This novel system with dual biological and advanced antibacterial properties is a promising therapeutic for combating resistant bacteria while triggering new bone formation.
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Affiliation(s)
- Natalia Pajares-Chamorro
- Department of Chemical Engineering and Materials Science, College of Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Yadav Wagley
- Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, MI 48103, USA
| | - Chima V Maduka
- Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, MI 48103, USA; Institute for Quantitative Health Sciences and Technology, Michigan State University, East Lansing, MI 48824, USA; Comparative Medicine and Integrative Biology, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
| | - Daniel W Youngstrom
- Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, MI 48103, USA
| | - Alyssa Yeger
- Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, MI 48103, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Neal D Hammer
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
| | - Kurt Hankenson
- Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, MI 48103, USA
| | - Xanthippi Chatzistavrou
- Department of Chemical Engineering and Materials Science, College of Engineering, Michigan State University, East Lansing, MI 48824, USA.
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12
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Laurent A, Hirt-Burri N, Scaletta C, Michetti M, de Buys Roessingh AS, Raffoul W, Applegate LA. Holistic Approach of Swiss Fetal Progenitor Cell Banking: Optimizing Safe and Sustainable Substrates for Regenerative Medicine and Biotechnology. Front Bioeng Biotechnol 2020; 8:557758. [PMID: 33195124 PMCID: PMC7644790 DOI: 10.3389/fbioe.2020.557758] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 08/21/2020] [Indexed: 12/17/2022] Open
Abstract
Safety, quality, and regulatory-driven iterative optimization of therapeutic cell source selection has constituted the core developmental bedrock for primary fetal progenitor cell (FPC) therapy in Switzerland throughout three decades. Customized Fetal Transplantation Programs were pragmatically devised as straightforward workflows for tissue procurement, traceability maximization, safety, consistency, and robustness of cultured progeny cellular materials. Whole-cell bioprocessing standardization has provided plethoric insights into the adequate conjugation of modern biotechnological advances with current restraining legislative, ethical, and regulatory frameworks. Pioneer translational advances in cutaneous and musculoskeletal regenerative medicine continuously demonstrate the therapeutic potential of FPCs. Extensive technical and clinical hindsight was gathered by managing pediatric burns and geriatric ulcers in Switzerland. Concomitant industrial transposition of dermal FPC banking, following good manufacturing practices, demonstrated the extensive potential of their therapeutic value. Furthermore, in extenso, exponential revalorization of Swiss FPC technology may be achieved via the renewal of integrative model frameworks. Consideration of both longitudinal and transversal aspects of simultaneous fetal tissue differential processing allows for a better understanding of the quasi-infinite expansion potential within multi-tiered primary FPC banking. Multiple fetal tissues (e.g., skin, cartilage, tendon, muscle, bone, lung) may be simultaneously harvested and processed for adherent cell cultures, establishing a unique model for sustainable therapeutic cellular material supply chains. Here, we integrated fundamental, preclinical, clinical, and industrial developments embodying the scientific advances supported by Swiss FPC banking and we focused on advances made to date for FPCs that may be derived from a single organ donation. A renewed model of single organ donation bioprocessing is proposed, achieving sustained standards and potential production of billions of affordable and efficient therapeutic doses. Thereby, the aim is to validate the core therapeutic value proposition, to increase awareness and use of standardized protocols for translational regenerative medicine, potentially impacting millions of patients suffering from cutaneous and musculoskeletal diseases. Alternative applications of FPC banking include biopharmaceutical therapeutic product manufacturing, thereby indirectly and synergistically enhancing the power of modern therapeutic armamentariums. It is hypothesized that a single qualifying fetal organ donation is sufficient to sustain decades of scientific, medical, and industrial developments, as technological optimization and standardization enable high efficiency.
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Affiliation(s)
- Alexis Laurent
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
- Tec-Pharma SA, Bercher, Switzerland
- LAM Biotechnologies SA, Épalinges, Switzerland
| | - Nathalie Hirt-Burri
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
| | - Corinne Scaletta
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
| | - Murielle Michetti
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
| | - Anthony S. de Buys Roessingh
- Children and Adolescent Surgery Service, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Wassim Raffoul
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Lee Ann Applegate
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
- Oxford Suzhou Center for Advanced Research, Science and Technology Co., Ltd., Oxford University, Suzhou, China
- Competence Center for Applied Biotechnology and Molecular Medicine, University of Zurich, Zurich, Switzerland
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13
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Xie H, Liu M, Jin Y, Lin H, Zhang Y, Zheng S. miR-1323 suppresses bone mesenchymal stromal cell osteogenesis and fracture healing via inhibiting BMP4/SMAD4 signaling. J Orthop Surg Res 2020; 15:237. [PMID: 32600409 PMCID: PMC7322887 DOI: 10.1186/s13018-020-01685-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/29/2020] [Indexed: 12/14/2022] Open
Abstract
Background Atrophic non-union fractures show no radiological evidence of callus formation within 3 months of fracture. microRNA dysregulation may underlie the dysfunctional osteogenesis in atrophic non-union fractures. Here, we aimed to analyze miR-1323 expression in human atrophic non-union fractures and examine miR-1323’s underlying mechanism of action in human mesenchymal stromal cells. Methods Human atrophic non-union and standard healing fracture specimens were examined using H&E and Alcian Blue staining, immunohistochemistry, qRT-PCR, immunoblotting, and ALP activity assays. The effects of miR-1323 mimics or inhibition on BMP4, SMAD4, osteogenesis-related proteins, ALP activity, and bone mineralization were analyzed in human mesenchymal stromal cells. Luciferase reporter assays were utilized to assay miR-1323’s binding to the 3'UTRs of BMP4 and SMAD4. The effects of miR-1323, BMP4, and SMAD4 were analyzed by siRNA and overexpression vectors. A rat femur fracture model was established to analyze the in vivo effects of antagomiR-1323 treatment. Results miR-1323 was upregulated in human atrophic non-union fractures. Atrophic non-union was associated with downregulation of BMP4 and SMAD4 as well as the osteogenic markers ALP, collagen I, and RUNX2. In vitro, miR-1323 suppressed BMP4 and SMAD4 expression by binding to the 3'UTRs of BMP4 and SMAD4. Moreover, miR-1323’s inhibition of BMP4 and SMAD4 inhibited mesenchymal stromal cell osteogenic differentiation via modulating the nuclear translocation of the transcriptional co-activator TAZ. In vivo, antagomiR-1323 therapy facilitated the healing of fractures in a rat model of femoral fracture. Conclusions This evidence supports the miR-1323/BMP4 and miR-1323/SMAD4 axes as novel therapeutic targets for atrophic non-union fractures.
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Affiliation(s)
- Hui Xie
- Department of Orthopedics, The Second Affiliated Hospital of Jiaxing University, No. 1518 Huanchengbei Road, Jiaxing, Zhejiang, 314299, China
| | - Ming Liu
- Department of Orthopedics, The Second Affiliated Hospital of Jiaxing University, No. 1518 Huanchengbei Road, Jiaxing, Zhejiang, 314299, China
| | - Yaofeng Jin
- Department of Orthopedics, The Second Affiliated Hospital of Jiaxing University, No. 1518 Huanchengbei Road, Jiaxing, Zhejiang, 314299, China
| | - Haiqing Lin
- Department of Orthopedics, The Second Affiliated Hospital of Jiaxing University, No. 1518 Huanchengbei Road, Jiaxing, Zhejiang, 314299, China
| | - Yushan Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Jiaxing University, No. 1518 Huanchengbei Road, Jiaxing, Zhejiang, 314299, China
| | - Song Zheng
- Department of Orthopedics, The Second Affiliated Hospital of Jiaxing University, No. 1518 Huanchengbei Road, Jiaxing, Zhejiang, 314299, China.
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14
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Wu J, Chen T, Wang Z, Chen X, Qu S, Weng J, Zhi W, Wang J. Joint construction of micro-vibration stimulation and BCP scaffolds for enhanced bioactivity and self-adaptability tissue engineered bone grafts. J Mater Chem B 2020; 8:4278-4288. [PMID: 32309841 DOI: 10.1039/d0tb00223b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The bone defects caused by trauma and disease have become a major difficulty in the treatment of clinical bone defects, and bone tissue engineering has become a promising treatment strategy. It was found that mechanical stimulation regulated the development of bone constructs by affecting the distribution and differentiation of cells on them. In this study, tissue-engineered bone grafts with enhanced bioactivity and self-adaptability were constructed by BMSCs and biphasic calcium phosphate (BCP) scaffolds under periodic micro-vibration stimulation (MVS) with a frequency of 40 Hz and a magnitude of 0.3 g. The results of the material characterization indicated that the BCP scaffolds created a more favourable osteogenic micro-environment with promoted calcium ion release, protein adsorption and mineralization deposition under the micro-vibration stimulation. The in vitro results showed that the apoptosis of BMSCs increased significantly on day 1, but from day 3 on, the proliferation increased and apoptosis decreased. Cells were evenly distributed on the scaffolds, exhibiting tight adhesion in a flat-shape and distinct matrix mineralization. F-actin and ALP expression significantly increased and meanwhile osteogenesis-related genes including Runx2, Col-I, ALP, and OCN were significantly up-regulated. Western blotting results suggested that the ERK1/2 and Wnt/β-catenin signalling pathways were involved in the osteogenic behaviour of BMSCs induced by MVS. In vivo experiments showed that grafts had stronger osteoinduction and mechanical adaptability. Taken together, this study suggested that micro-vibration stimulation combined with BCP scaffolds with good osteoinduction could be a promising approach for constructing tissue engineered bone grafts with enhanced bioactivity, mechanical adaptability, and bone regeneration repair capability.
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Affiliation(s)
- Jinjie Wu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China.
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15
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Zhou Y, Wang C, Si J, Wang B, Zhang D, Ding D, Zhang J, Wang H. Melatonin up-regulates bone marrow mesenchymal stem cells osteogenic action but suppresses their mediated osteoclastogenesis via MT 2 -inactivated NF-κB pathway. Br J Pharmacol 2020; 177:2106-2122. [PMID: 31900938 DOI: 10.1111/bph.14972] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 11/20/2019] [Accepted: 12/20/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND AND PURPOSE Melatonin is a neurohormone involved in bone homeostasis. Melatonin directs bone remodelling and the role of bone marrow mesenchymal stem cells (BMMSCs) in the regulating melatonin-mediated bone formation-resorption balance remains undefined. EXPERIMENTAL APPROACH Osteoporosis models were established and bone tissue and serum were collected to test the effects of melatonin on bone homeostasis. Melatonin receptors were knocked down, the NF-κB signalling pathway and receptor activator of NF-κB ligand (RANKL) expression were investigated. Communication between bone marrow mesenchymal stem cells and osteoclasts was detected with direct-contact or indirect-contact system. KEY RESULTS Bone loss and microstructure disorder in mice were reversed after melatonin treatment, as a result of anabolic and anti-resorptive effects. In vitro, a physiological (low) concentration of melatonin promoted the bone marrow mesenchymal stem cells, osteogenic lineage commitment and extracellular mineralization but had no impact on extracellular matrix synthesis. After MT knockdown, especially MT2 , the positive effects of melatonin on osteogenesis were attenuated. The canonical NF-κB signalling pathway was the first discovered downstream signalling pathway after MT receptor activation and was found to be down-regulated by melatonin during osteogenesis. Melatonin suppressed BMMSC-mediated osteoclastogenesis by inhibiting RANKL production in BMMSCs and this effect only occurred when BMMSCs and osteoclast precursors were co-cultured in an indirect-contact manner. CONCLUSION AND IMPLICATIONS Our work suggests that melatonin plays a crucial role in bone balance, significantly accelerates the osteogenic differentiation of bone marrow mesenchymal stem cells by suppressing the MT2 -dependent NF-κB signalling pathway, and down-regulates osteoclastogenesis via RANKL paracrine secretion.
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Affiliation(s)
- Yi Zhou
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Chaowei Wang
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Jinyan Si
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Baixiang Wang
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Denghui Zhang
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Ding Ding
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Jian Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Huiming Wang
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
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16
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Jarolimova P, Voltrova B, Blahnova V, Sovkova V, Pruchova E, Hybasek V, Fojt J, Filova E. Mesenchymal stem cell interaction with Ti6Al4V alloy pre-exposed to simulated body fluid. RSC Adv 2020; 10:6858-6872. [PMID: 35493900 PMCID: PMC9049760 DOI: 10.1039/c9ra08912h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/13/2020] [Indexed: 11/21/2022] Open
Abstract
Titanium and its alloys are widely used for substitution of hard tissues, especially in orthopaedic and dental surgery. Despite the benefit of the use of titanium for such applications, there are still questions which must be sorted out. Surface properties are crucial for cell adhesion, proliferation and differentiation. Mainly, micro/nanostructured surfaces positively influence osteogenic differentiation of human mesenchymal stem cells. Ti6Al4V is a biocompatible α + β alloy which is widely used in orthopaedics. The aim of this study was to investigate the interaction of the nanostructured and ground Ti6Al4V titanium alloys with simulated body fluid complemented by the defined precipitation of hydroxyapatite-like coating and to study the cytotoxicity and differentiation capacity of cells with such a modified titanium alloy. Nanostructures were fabricated using electrochemical oxidation. Human mesenchymal stem cells (hMSC) were used to evaluate cell adhesion, metabolic activity and proliferation on the specimens. The differentiation potential of the samples was investigated using PCR and specific staining of osteogenic markers collagen type I and osteocalcin. Our results demonstrate that both pure Ti6Al4V, nanostructured samples, and hydroxyapatite-like coating supported hMSC growth and metabolic activity. Nanostructured samples improved collagen type I synthesis after 14 days, while both nanostructured and hydroxyapatite-like coated samples enhanced collagen synthesis on day 21. Osteocalcin synthesis was the most enhanced by hydroxyapatite-like coating on the nanostructured surfaces. Our results indicate that hydroxyapatite-like coating is a useful tool guiding hMSC osteogenic differentiation. Titanium and its alloys are widely used for substitution of hard tissues, especially in orthopaedic and dental surgery.![]()
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Affiliation(s)
- Petra Jarolimova
- Department of Metals and Corrosion Engineering
- Faculty of Chemical Technology
- University of Chemistry and Technology
- 166 28 Prague
- Czech Republic
| | - Barbora Voltrova
- Department of Tissue Engineering
- Institute of Experimental Medicine of the Czech Academy of Sciences
- Prague 4
- Czech Republic
- Faculty of Science
| | - Veronika Blahnova
- Department of Tissue Engineering
- Institute of Experimental Medicine of the Czech Academy of Sciences
- Prague 4
- Czech Republic
- Second Faculty of Medicine
| | - Vera Sovkova
- Department of Tissue Engineering
- Institute of Experimental Medicine of the Czech Academy of Sciences
- Prague 4
- Czech Republic
- University Centre for Energy Efficient Buildings
| | - Eva Pruchova
- Department of Metals and Corrosion Engineering
- Faculty of Chemical Technology
- University of Chemistry and Technology
- 166 28 Prague
- Czech Republic
| | - Vojtech Hybasek
- Department of Metals and Corrosion Engineering
- Faculty of Chemical Technology
- University of Chemistry and Technology
- 166 28 Prague
- Czech Republic
| | - Jaroslav Fojt
- Department of Metals and Corrosion Engineering
- Faculty of Chemical Technology
- University of Chemistry and Technology
- 166 28 Prague
- Czech Republic
| | - Eva Filova
- Department of Tissue Engineering
- Institute of Experimental Medicine of the Czech Academy of Sciences
- Prague 4
- Czech Republic
- Second Faculty of Medicine
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17
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Guillem-Marti J, Cinca N, Punset M, Cano IG, Gil FJ, Guilemany JM, Dosta S. Porous titanium-hydroxyapatite composite coating obtained on titanium by cold gas spray with high bond strength for biomedical applications. Colloids Surf B Biointerfaces 2019; 180:245-253. [DOI: 10.1016/j.colsurfb.2019.04.048] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/22/2019] [Accepted: 04/23/2019] [Indexed: 01/13/2023]
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18
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Tian X, Cong F, Guo H, Fan J, Chao G, Song T. Downregulation of Bach1 protects osteoblasts against hydrogen peroxide-induced oxidative damage in vitro by enhancing the activation of Nrf2/ARE signaling. Chem Biol Interact 2019; 309:108706. [DOI: 10.1016/j.cbi.2019.06.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 05/24/2019] [Accepted: 06/10/2019] [Indexed: 02/07/2023]
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19
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Long H, Zhu Y, Lin Z, Wan J, Cheng L, Zeng M, Tang Y, Zhao R. miR-381 modulates human bone mesenchymal stromal cells (BMSCs) osteogenesis via suppressing Wnt signaling pathway during atrophic nonunion development. Cell Death Dis 2019; 10:470. [PMID: 31209205 PMCID: PMC6572824 DOI: 10.1038/s41419-019-1693-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 05/19/2019] [Accepted: 05/23/2019] [Indexed: 12/19/2022]
Abstract
The osteogenic differentiation of human bone mesenchymal stromal cells (BMSCs) has been considered as a central issue in fracture healing. Wnt signaling could promote BMSC osteogenic differentiation through inhibiting PPARγ. During atrophic nonunion, Wnt signaling-related factors, WNT5A and FZD3 proteins, were significantly reduced, along with downregulation of Runx2, ALP, and Collagen I and upregulation of PPARγ. Here, we performed a microarray analysis to identify differentially expressed miRNAs in atrophic nonunion tissues that were associated with Wnt signaling through targeting related factors. Of upregulated miRNAs, miR-381 overexpression could significantly inhibit the osteogenic differentiation in primary human BMSCs while increase in PPARγ protein level. Through binding to the 3'UTR of WNT5A and FZD3, miR-381 modulated the osteogenic differentiation via regulating β-catenin nucleus translocation. Moreover, PPARγ, an essential transcription factor inhibiting osteogenic differentiation, could bind to the promoter region of miR-381 to activate its expression. Taken together, PPARγ-induced miR-381 upregulation inhibits the osteogenic differentiation in human BMSCs through miR-381 downstream targets, WNT5A and FZD3, and β-catenin nucleus translocation in Wnt signaling. The in vivo study also proved that inhibition of miR-381 promoted the fracture healing. Our finding may provide a novel direction for atrophic nonunion treatment.
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Affiliation(s)
- Haitao Long
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yong Zhu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zhangyuan Lin
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Jun Wan
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Liang Cheng
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Min Zeng
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yifu Tang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Ruibo Zhao
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China.
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20
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Formenti AM, Doga M, Frara S, Ritelli M, Colombi M, Banfi G, Giustina A. Skeletal fragility: an emerging complication of Ehlers-Danlos syndrome. Endocrine 2019; 63:225-230. [PMID: 30554346 DOI: 10.1007/s12020-018-1822-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 11/21/2018] [Indexed: 12/31/2022]
Abstract
Ehlers-Danlos syndrome (EDS) is an emerging cause of skeletal fragility. Mechanism of bone damage are probably multifactorial in line with the different skeletal phenotypes that can be found in clinical practice. A structured approach to clinical management of bone metabolic complication in EDS is proposed.
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Affiliation(s)
| | - Mauro Doga
- Vita-Salute San Raffaele University, Milano, Italy
| | | | - Marco Ritelli
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Marina Colombi
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Giuseppe Banfi
- IRCCS, Istituto Ortopedico Galeazzi, Milano, Italy
- Vita-Salute San Raffaele University, Milano, Italy
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21
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Shao PL, Wu SC, Lin ZY, Ho ML, Chen CH, Wang CZ. Alpha-5 Integrin Mediates Simvastatin-Induced Osteogenesis of Bone Marrow Mesenchymal Stem Cells. Int J Mol Sci 2019; 20:ijms20030506. [PMID: 30682874 PMCID: PMC6387019 DOI: 10.3390/ijms20030506] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 01/17/2019] [Accepted: 01/20/2019] [Indexed: 11/16/2022] Open
Abstract
Simvastatin (SVS) promotes the osteogenic differentiation of mesenchymal stem cells (MSCs) and has been studied for MSC-based bone regeneration. However, the mechanism underlying SVS-induced osteogenesis is not well understood. We hypothesize that α5 integrin mediates SVS-induced osteogenic differentiation. Bone marrow MSCs (BMSCs) derived from BALB/C mice, referred to as D1 cells, were used. Alizarin red S (calcium deposition) and alkaline phosphatase (ALP) staining were used to evaluate SVS-induced osteogenesis of D1 cells. The mRNA expression levels of α5 integrin and osteogenic marker genes (bone morphogenetic protein-2 (BMP-2), runt-related transcription factor 2 (Runx2), collagen type I, ALP and osteocalcin (OC)) were detected using quantitative real-time PCR. Surface-expressed α5 integrin was detected using flow cytometry analysis. Protein expression levels of α5 integrin and phosphorylated focal adhesion kinase (p-FAK), which is downstream of α5 integrin, were detected using Western blotting. siRNA was used to deplete the expression of α5 integrin in D1 cells. The results showed that SVS dose-dependently enhanced the gene expression levels of osteogenic marker genes as well as subsequent ALP activity and calcium deposition in D1 cells. Upregulated p-FAK was accompanied by an increased protein expression level of α5 integrin after SVS treatment. Surface-expressed α5 integrin was also upregulated after SVS treatment. Depletion of α5 integrin expression significantly suppressed SVS-induced osteogenic gene expression levels, ALP activity, and calcium deposition in D1 cells. These results identify a critical role of α5 integrin in SVS-induced osteogenic differentiation of BMSCs, which may suggest a therapeutic strategy to modulate α5 integrin/FAK signaling to promote MSC-based bone regeneration.
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Affiliation(s)
- Pei-Lin Shao
- Department of Nursing, Asia University, Taichung 413, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University,Taichung 404, Taiwan.
| | - Shun-Cheng Wu
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Zih-Yin Lin
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Mei-Ling Ho
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
| | - Chung-Hwan Chen
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung 801, Taiwan.
- Division of Adult Reconstruction Surgery, Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Chau-Zen Wang
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
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Irawan V, Sung TC, Higuchi A, Ikoma T. Collagen Scaffolds in Cartilage Tissue Engineering and Relevant Approaches for Future Development. Tissue Eng Regen Med 2018; 15:673-697. [PMID: 30603588 PMCID: PMC6250655 DOI: 10.1007/s13770-018-0135-9] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/30/2018] [Accepted: 06/15/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Cartilage tissue engineering (CTE) aims to obtain a structure mimicking native cartilage tissue through the combination of relevant cells, three-dimensional scaffolds, and extraneous signals. Implantation of 'matured' constructs is thus expected to provide solution for treating large injury of articular cartilage. Type I collagen is widely used as scaffolds for CTE products undergoing clinical trial, owing to its ubiquitous biocompatibility and vast clinical approval. However, the long-term performance of pure type I collagen scaffolds would suffer from its limited chondrogenic capacity and inferior mechanical properties. This paper aims to provide insights necessary for advancing type I collagen scaffolds in the CTE applications. METHODS Initially, the interactions of type I/II collagen with CTE-relevant cells [i.e., articular chondrocytes (ACs) and mesenchymal stem cells (MSCs)] are discussed. Next, the physical features and chemical composition of the scaffolds crucial to support chondrogenic activities of AC and MSC are highlighted. Attempts to optimize the collagen scaffolds by blending with natural/synthetic polymers are described. Hybrid strategy in which collagen and structural polymers are combined in non-blending manner is detailed. RESULTS Type I collagen is sufficient to support cellular activities of ACs and MSCs; however it shows limited chondrogenic performance than type II collagen. Nonetheless, type I collagen is the clinically feasible option since type II collagen shows arthritogenic potency. Physical features of scaffolds such as internal structure, pore size, stiffness, etc. are shown to be crucial in influencing the differentiation fate and secreting extracellular matrixes from ACs and MSCs. Collagen can be blended with native or synthetic polymer to improve the mechanical and bioactivities of final composites. However, the versatility of blending strategy is limited due to denaturation of type I collagen at harsh processing condition. Hybrid strategy is successful in maximizing bioactivity of collagen scaffolds and mechanical robustness of structural polymer. CONCLUSION Considering the previous improvements of physical and compositional properties of collagen scaffolds and recent manufacturing developments of structural polymer, it is concluded that hybrid strategy is a promising approach to advance further collagen-based scaffolds in CTE.
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Affiliation(s)
- Vincent Irawan
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2 Chome-12-1, Meguro-ku, Tokyo, 152-8550 Japan
| | - Tzu-Cheng Sung
- Department of Chemical and Materials Engineering, National Central University, No. 300 Jung Da Rd., Chung-Li, Taoyuan, 320 Taiwan
| | - Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University, No. 300 Jung Da Rd., Chung-Li, Taoyuan, 320 Taiwan
| | - Toshiyuki Ikoma
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2 Chome-12-1, Meguro-ku, Tokyo, 152-8550 Japan
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Narayanan K, Kumar S, Padmanabhan P, Gulyas B, Wan ACA, Rajendran VM. Lineage-specific exosomes could override extracellular matrix mediated human mesenchymal stem cell differentiation. Biomaterials 2018; 182:312-322. [PMID: 30153612 PMCID: PMC6371403 DOI: 10.1016/j.biomaterials.2018.08.027] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 08/07/2018] [Accepted: 08/10/2018] [Indexed: 12/13/2022]
Abstract
Lineage specification is an essential process in stem cell fate, tissue homeostasis and development. Microenvironmental cues provide direct and selective extrinsic signals to regulate lineage specification of stem cells. Microenvironmental milieu consists of two essential components, one being extracellular matrix (ECM) as the substratum, while the other being cell secreted exosomes and growth factors. ECM of differentiated cells modulates phenotypic expression of stem cells, while their exosomes contain phenotype specific instructive factors (miRNA, RNA and proteins) that control stem cell differentiation. This study demonstrates that osteoblasts-derived (Os-Exo) and adipocytes-derived (Ad-Exo) exosomes contain instructive factors that regulate the lineage specification of human mesenchymal stem cells (hMSCs). Analyses of exosomes revealed the presence of transcription factors in the form of RNA and protein for osteoblasts (RUNX2 and OSX) and adipocytes (C/EBPα and PPARγ). In addition, several miRNAs reported to have osteogenic and adipogenic differentiation potentials are also identified in these exosomes. Kinetic and differentiation analyses indicate that both osteoblast and adipocyte exosomes augment ECM-mediated differentiation of hMSCs into the respective lineage. The combination of osteoblast/adipocyte ECM and exosomes turned-on the lineage specific gene expressions at earlier time points of differentiation compared to the respective ECM or exosomes administered individually. Interestingly, the hMSCs differentiated on osteoblast ECM with adipogenic exosomes showed expression of adipogenic lineage genes, while hMSCs differentiated on adipocyte ECM with osteoblast exosomes showed osteogenic lineage genes. Based on these observations, we conclude that exosomes might override the ECM mediated instructive signals during lineage specification of hMSC.
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Affiliation(s)
- Karthikeyan Narayanan
- Department of Biochemistry and Molecular Biology, West Virginia University School of Medicine, Morgantown, WV 26506, USA; Institute of Bioengineering and Nanotechnology, 138669, Singapore.
| | - Sundramurthy Kumar
- Centre for Neuroimaging Research at NTU (CeNReN), Lee Kong Chian School of Medicine, Nanyang Technological University, 636921, Singapore
| | - Parasuraman Padmanabhan
- Centre for Neuroimaging Research at NTU (CeNReN), Lee Kong Chian School of Medicine, Nanyang Technological University, 636921, Singapore.
| | - Balazs Gulyas
- Centre for Neuroimaging Research at NTU (CeNReN), Lee Kong Chian School of Medicine, Nanyang Technological University, 636921, Singapore
| | - Andrew C A Wan
- Institute of Bioengineering and Nanotechnology, 138669, Singapore
| | - Vazhaikkurichi M Rajendran
- Department of Biochemistry and Molecular Biology, West Virginia University School of Medicine, Morgantown, WV 26506, USA
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24
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Wang W, Chen J, Hui Y, Huang M, Yuan P. Down-regulation of miR-193a-3p promotes osteoblast differentiation through up-regulation of LGR4/ATF4 signaling. Biochem Biophys Res Commun 2018; 503:2186-2193. [DOI: 10.1016/j.bbrc.2018.08.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 08/01/2018] [Indexed: 12/14/2022]
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25
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Gandhimathi C, Venugopal JR, Ramakrishna S, Srinivasan DK. Electrospun-electrosprayed hydroxyapatite nanostructured composites for bone tissue regeneration. J Appl Polym Sci 2018. [DOI: 10.1002/app.46756] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Jayarama Reddy Venugopal
- Center for Nanofibers and Nanotechnology, Nanoscience and Nanotechnology Initiative; National University of Singapore; Singapore
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Nanoscience and Nanotechnology Initiative; National University of Singapore; Singapore
| | - Dinesh Kumar Srinivasan
- Lee Kong Chian School of Medicine; Nanyang Technological University; Singapore
- Department of Anatomy, Yong Loo Lin School of Medicine; National University of Singapore; Singapore
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26
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Varela HA, Souza JCM, Nascimento RM, Araújo RF, Vasconcelos RC, Cavalcante RS, Guedes PM, Araújo AA. Injectable platelet rich fibrin: cell content, morphological, and protein characterization. Clin Oral Investig 2018; 23:1309-1318. [PMID: 30003342 DOI: 10.1007/s00784-018-2555-2] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 07/02/2018] [Indexed: 02/07/2023]
Abstract
OBJECTIVES The aim of the present study was to evaluate the blood cell content, morphological aspects, gene expression of type I collagen, and release of growth factors on an injectable platelet rich fibrin (i-PRF). MATERIALS AND METHODS Blood samples were collected from 15 volunteers to prepare i-PRF samples. Peripheral blood was used as a control group. Blood clot and i-PRF samples were cultured for 10 days. The supernatant of the samples was collected for ELISA immunoassay quantification of PDGF and VEGF growth factors over periods of 1, 8, 24, 72, and 240 h. I-PRF and blood clot samples were biologically characterized using histological and immunohistochemistry analysis for IL-10, osteocalcin, and TGF-β. Scanning electron microscopy (SEM) was used to inspect the fibrin network and distribution of blood platelets and leukocytes. Reverse transcriptase polymerase chain reaction (RT-PCR) method was used to evaluate gene expression for type I collagen. RESULTS A higher concentration of platelets and lymphocytes was recorded in i-PRF than in peripheral blood (p < 0.05). The release of VEGF was higher in blood clot samples (1933 ± 704) than that for i-PRF (852 ± 376; p < 0.001). Immunohistochemistry showed upregulation of TGF-B, IL-10, and osteocalcin in the i-PRF group. RT-PCR showed increased type I collagen gene expression in i-PRF (p < 0.05). SEM images revealed agglomeration of platelets in some regions, while a fibrin networking was noticeable in the entire i-PRF sample. CONCLUSIONS Injectable platelet rich fibrin becomes a good approach for soft and mineralized tissue healing considering the formation of a three-dimensional fibrin network embedding platelets, leukocytes, type I collagen, osteocalcin, and growth factors. Indeed, the injectable platelet rich fibrin can be indicated in several medical applications regarding bioactivity, simplied technique, and flowable mixing with other biomaterials. CLINICAL RELEVANCE Morphological, cell, and protein characterization of platelet rich fibrin provides a better understanding of the clinical effects and improvement of clinical guidelines for several medical applications. Once well physicochemical and biologically characterized, the use of an injectable platelet rich fibrin can be extended to other applications in the field of orthopedics, periodontics, and implant dentistry on the repairing process of both soft and mineralized tissues.
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Affiliation(s)
- Hugo Almeida Varela
- Post-graduate program in Public Health, Department of Biophysics and Pharmacology, Federal University of Rio Grande Norte (UFRN), Natal, RN, 59072-970, Brazil.
| | - Júlio C M Souza
- Center for MicroElectroMechanical Systems (CMEMS-UMINHO), University of Minho, Guimarães, 4800-058, Portugal
| | - Rubens M Nascimento
- Post-graduate Program in Materials Science and Engineering, Department of Materials Science and Engineering, Federal University of Rio Grande Norte (UFRN), Natal, 59078-970, RN, Brazil
| | - Raimundo F Araújo
- Post-graduate program in Functional and Structural Biology and Health Science, Department of Morphology, Federal University of Rio Grande Norte (UFRN), Natal, 59072-970, RN, Brazil
| | - Roseane C Vasconcelos
- Post-graduate program in Public Health, Department of Dentistry, Federal University of Rio Grande Norte (UFRN), Natal, 59056-000, RN, Brazil
| | - Rômulo S Cavalcante
- Post-graduate Program in Health Science, Department of Morphology, Federal University of Rio Grande Norte (UFRN), Natal, 59072-970, RN, Brazil
| | - Paulo M Guedes
- Post-graduate program in Parasite Biology, Department of Microbiology and Parasitology, Federal University of Rio Grande Norte (UFRN), Natal, 59084-100, RN, Brazil
| | - Aurigena A Araújo
- Post-graduate program in Public Health, Department of Biophysics and Pharmacology, Federal University of Rio Grande Norte (UFRN), Natal, RN, 59072-970, Brazil
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Papadopoulou A, Iliadi A, Eliades T, Kletsas D. Early responses of human periodontal ligament fibroblasts to cyclic and static mechanical stretching. Eur J Orthod 2018; 39:258-263. [PMID: 27932408 DOI: 10.1093/ejo/cjw075] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Objective To compare the mechanotransduction caused by cyclic and static mechanical strains in human periodontal ligament fibroblasts (hPDLFs) cultured under identical conditions. Materials and methods hPDLFs, originating from the same donors, were exposed either to cyclic or to static tensile strain using specially designed devices and under identical culture conditions. Activation of all members of mitogen-activated protein kinases (MAPKs) was monitored by western immunoblot analysis. Expression levels of immediate/early genes c-fos and c-jun were assessed with quantitative real-time polymerase chain reaction. Results Time course experiments revealed that both types of stresses activate the three members of MAPK, that is ERK, p38, and JNK, with cyclic stress exhibiting a slightly more extended activation. Further downstream, both stresses upregulate the immediate/early genes c-fos and c-jun, encoding components of the activator protein-1 (AP-1), a key transcription factor in osteoblastic differentiation; again cyclic strain provokes a more intense upregulation. Six hours after the application of both strains, MAPK activation and gene expression return to basal levels. Finally, cells exposed to cyclic stress for longer periods are distributed approximately perpendicular to the axis of the applied strain, whereas cells exposed to static loading remain in a random orientation in culture. Conclusion The findings of the present study indicate similar, although not identical, immediate/early responses of hPDLs to cyclic and static stretching, with cyclic strain provoking a more intense adaptive response of these cells to mechanical deformation.
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Affiliation(s)
- Adamantia Papadopoulou
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research 'Demokritos', Athens
| | - Anna Iliadi
- Department of Orthodontics, School of Dentistry, University of Athens, Greece
| | - Theodore Eliades
- Clinic of Orthodontics and Paediatric Dentistry, University of Zurich, Switzerland
| | - Dimitris Kletsas
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research 'Demokritos', Athens
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28
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Zhu X, Gao Q, Zhao G, Wang H, Liu L, Chen Z, Chen Y, Wu L, Xu Z, Li W. Comparison Study of Bone Defect Healing Effect of Raw and Processed Pyritum in Rats. Biol Trace Elem Res 2018; 184:136-147. [PMID: 28980123 DOI: 10.1007/s12011-017-1166-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 09/25/2017] [Indexed: 01/06/2023]
Abstract
To evaluate and compare the effect of raw and processed pyritum on tibial defect healing, 32 male Sprague Dawley rats were randomly divided into four groups. After tibial defect, animals were produced and grouped: sham and control group were orally administrated with distilled water (1 mL/100 g), while treatment groups were given aqueous extracts of raw and processed pyritum (1.5 g/kg) for successive 42 days. Radiographic examination showed that bone defect healing effect of the treatment groups was obviously superior compared to that of the control group. Bone mineral density of whole tibia was increased significantly after treating with pyritum. Inductively coupled plasma-optical emission spectrometry showed that the contents of Ca, P, and Mg in callus significantly increased in the treatment groups comparing with the control. Moreover, serological analysis showed that the concentration of serum phosphorus of the treatment groups significantly increased compared with that of the control group. By in vitro study, we have evaluated the effects of drug-containing serum of raw and processed pyritum on osteoblasts. It was manifested that both the drug-containing sera of raw and processed pyritum significantly increased the mRNA levels of alkaline phosphatase and collagen type I. Protein levels of phosphorylated Smad2/3 also increased. The mRNA levels of osteocalcin and transforming growth factor β (TGF-β) type I and II receptors, as well as the protein levels of TGF-β1 in the processed groups, were higher than those in the control. In summary, both raw and processed pyritum-containing sera exhibited positive effects on osteoblasts, which maybe via the TGF-β1/Smad signaling pathway. Notably, the tibia defect healing effect of pyritum was significantly enhanced after processing.
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Affiliation(s)
- Xingyu Zhu
- College of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Qianqian Gao
- College of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Genhua Zhao
- College of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Heng Wang
- College of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Ling Liu
- College of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Zhipeng Chen
- College of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, Jiangsu, People's Republic of China
- Engineering Center of State Ministry of Education for Standardization of Chinese Medicine Processing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yijun Chen
- Modern Analysis Center of Nanjing University, Nanjing, China
| | - Li Wu
- College of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, Jiangsu, People's Republic of China
| | - Zisheng Xu
- Wuhu Pure Sunshine Natural Medicine Company Limited, Wuhu, Anhui, People's Republic of China.
| | - Weidong Li
- College of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, Jiangsu, People's Republic of China.
- Engineering Center of State Ministry of Education for Standardization of Chinese Medicine Processing, Nanjing University of Chinese Medicine, Nanjing, China.
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29
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Mao Z, Li Y, Yang Y, Fang Z, Chen X, Wang Y, Kang J, Qu X, Yuan W, Dai K, Yue B. Osteoinductivity and Antibacterial Properties of Strontium Ranelate-Loaded Poly(Lactic-co-Glycolic Acid) Microspheres With Assembled Silver and Hydroxyapatite Nanoparticles. Front Pharmacol 2018; 9:368. [PMID: 29720940 PMCID: PMC5915458 DOI: 10.3389/fphar.2018.00368] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 03/29/2018] [Indexed: 12/25/2022] Open
Abstract
Bone-related infection rates are 4–64% in long open bone fractures and nearly 1% in joint-related surgeries. Treating bone infections and infection-related bone loss is very important. The present study prepared strontium ranelate (SR)-loaded poly(lactic-co-glycolic acid) (PLGA) microspheres (PM) with assembled silver nanoparticles (AgNPs) and hydroxyapatite nanoparticles (HANPs) (SR-PM-Ag-HA) through a novel solid-in-oil nanosuspension (S/O/N) method to achieve osteoinductivity and antibacterial properties. We evaluated the microstructure, drug release, biocompatibility, osteoinductivity, and antibacterial activity in vitro. The microspheres showed a stable shape and size. The cumulative drug release reached a maximum of ∼90% after 22 days. All groups loaded with SR enhanced MC3T3-E1 cell proliferation to a greater degree than pure PM. The osteoinductivity behavior was investigated by ALP staining and real-time PCR of osteogenic differentiation marker genes. The antibacterial activity was evaluated using antibacterial ability and biofilm formation assays. SR-PM-Ag-HA greatly enhanced osteogenic differentiation and showed excellent antibacterial properties. These results indicated that SR-PM-Ag-HA could be biocompatible and suitable for drug delivery, osteoinduction, and antibiosis, and therefore, have potential applications in the treatment of bone-related infections and promotion of bone formation at infected sites.
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Affiliation(s)
- Zhenyang Mao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Orthopaedic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Li
- Department of Orthopaedic Surgery, Shanghai Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yunqi Yang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiwei Fang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Xuan Chen
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yugang Wang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Kang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Xinhua Qu
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weien Yuan
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Kerong Dai
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bing Yue
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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30
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Zhang C, Li L, Jiang Y, Wang C, Geng B, Wang Y, Chen J, Liu F, Qiu P, Zhai G, Chen P, Quan R, Wang J. Space microgravity drives transdifferentiation of human bone marrow-derived mesenchymal stem cells from osteogenesis to adipogenesis. FASEB J 2018. [PMID: 29533735 DOI: 10.1096/fj.201700208rr] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Bone formation is linked with osteogenic differentiation of mesenchymal stem cells (MSCs) in the bone marrow. Microgravity in spaceflight is known to reduce bone formation. In this study, we used a real microgravity environment of the SJ-10 Recoverable Scientific Satellite to examine the effects of space microgravity on the osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hMSCs). hMSCs were induced toward osteogenic differentiation for 2 and 7 d in a cell culture device mounted on the SJ-10 satellite. The satellite returned to Earth after going through space experiments in orbit for 12 d, and cell samples were harvested and analyzed for differentiation potentials. The results showed that space microgravity inhibited osteogenic differentiation and resulted in adipogenic differentiation, even under osteogenic induction conditions. Under space microgravity, the expression of 10 genes specific for osteogenesis decreased, including collagen family members, alkaline phosphatase ( ALP), and runt-related transcription factor 2 ( RUNX2), whereas the expression of 4 genes specific for adipogenesis increased, including adipsin ( CFD), leptin ( LEP), CCAAT/enhancer binding protein β ( CEBPB), and peroxisome proliferator-activated receptor-γ ( PPARG). In the analysis of signaling pathways specific for osteogenesis, we found that the expression and activity of RUNX2 was inhibited, expression of bone morphogenetic protein-2 ( BMP2) and activity of SMAD1/5/9 were decreased, and activity of focal adhesion kinase (FAK) and ERK-1/2 declined significantly under space microgravity. These data indicate that space microgravity plays a dual role by decreasing RUNX2 expression and activity through the BMP2/SMAD and integrin/FAK/ERK pathways. In addition, we found that space microgravity increased p38 MAPK and protein kinase B (AKT) activities, which are important for the promotion of adipogenic differentiation of hMSCs. Space microgravity significantly decreased the expression of Tribbles homolog 3 ( TRIB3), a repressor of adipogenic differentiation. Y15, a specific inhibitor of FAK activity, was used to inhibit the activity of FAK under normal gravity; Y15 decreased protein expression of TRIB3. Therefore, it appears that space microgravity decreased FAK activity and thereby reduced TRIB3 expression and derepressed AKT activity. Under space microgravity, the increase in p38 MAPK activity and the derepression of AKT activity seem to synchronously lead to the activation of the signaling pathway specifically promoting adipogenesis.-Zhang, C., Li, L., Jiang, Y., Wang, C., Geng, B., Wang, Y., Chen, J., Liu, F., Qiu, P., Zhai, G., Chen, P., Quan, R., Wang, J. Space microgravity drives transdifferentiation of human bone marrow-derived mesenchymal stem cells from osteogenesis to adipogenesis.
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Affiliation(s)
- Cui Zhang
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Liang Li
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Yuanda Jiang
- National Center of Space Science, Chinese Academy of Sciences, Beijing, China
| | - Cuicui Wang
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Baoming Geng
- National Center of Space Science, Chinese Academy of Sciences, Beijing, China
| | - Yanqiu Wang
- National Center of Space Science, Chinese Academy of Sciences, Beijing, China
| | - Jianling Chen
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Fei Liu
- Institute of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, China
| | - Peng Qiu
- National Center of Space Science, Chinese Academy of Sciences, Beijing, China
| | - Guangjie Zhai
- National Center of Space Science, Chinese Academy of Sciences, Beijing, China
| | - Ping Chen
- Department of Cell Biology, Emory University School of Medicine, Atlanta, Georgia, USA.,Department of Otolaryngology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Renfu Quan
- Institute of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, China
| | - Jinfu Wang
- Institute of Cell and Development Biology, College of Life Sciences, Zijingang Campus, Zhejiang University, Hangzhou, China
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Ito T, Ohtsu N, Tomozawa M, Hirano M, Takita H, Iizuka T, Yokoyama A. Promotion of bone regeneration on titanium implants through a chemical treatment process using calcium phosphate slurry: Microscopic analysis, cellular response, and animal experiment. J Biomed Mater Res B Appl Biomater 2018; 106:2716-2724. [PMID: 29451708 DOI: 10.1002/jbm.b.34089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 12/28/2017] [Accepted: 01/19/2018] [Indexed: 12/19/2022]
Abstract
The present study provides scientific evidence that a new chemical treatment process using calcium phosphate slurry promotes bone regeneration on titanium (Ti) implants. The material's surface modified by the treatment was analyzed using microscopic observation and the bone regeneration efficacy was evaluated both in vitro and in vivo. Formation of a thin hydroxyapatite layer with a thickness of about 50 nm and an increase of surface roughness were confirmed by microscopic observations. Histological evaluation of rat femora implanted with the specimens showed that the areas of the specimens directly attached to bone tissue were significantly more extensive than those implanted with control Ti at 2 and 8 weeks. Likewise, on the treated Ti, ALP activity, osteopontin, osteocalcin, and calcium contents of rat bone marrow stromal cells were significantly higher than on the control Ti. Furthermore, reverse transcription polymerase chain reaction showed greater expression of messenger ribonucleic acid encoding Cbfa1 and collagen type1 on the treated Ti at 2 weeks. Based on these results, we concluded that the new process was effective to enhance the osteoconductivity of Ti. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2716-2724, 2018.
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Affiliation(s)
- Tatsuro Ito
- Department of Oral Functional Prosthodontics, Division of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Naofumi Ohtsu
- School of Earth, Energy and Environmental Engineering, Kitami Institute of Technology, Kitami, Japan
| | - Masanari Tomozawa
- Morphological Research Laboratory, Toray Research Center, Inc., Tokyo, Japan
| | - Mitsuhiro Hirano
- School of Earth, Energy and Environmental Engineering, Kitami Institute of Technology, Kitami, Japan
| | - Hiroko Takita
- Support Section for Education and Research, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Tadashi Iizuka
- Support Section for Education and Research, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Atsuro Yokoyama
- Department of Oral Functional Prosthodontics, Division of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
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Impact of a Porous Si-Ca-P Monophasic Ceramic on Variation of Osteogenesis-Related Gene Expression of Adult Human Mesenchymal Stem Cells. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8010046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Oh SH, Kim JW, Kim Y, Lee MN, Kook MS, Choi EY, Im SY, Koh JT. The extracellular matrix protein Edil3 stimulates osteoblast differentiation through the integrin α5β1/ERK/Runx2 pathway. PLoS One 2017; 12:e0188749. [PMID: 29182679 PMCID: PMC5705136 DOI: 10.1371/journal.pone.0188749] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 11/12/2017] [Indexed: 02/07/2023] Open
Abstract
Epidermal growth factor-like repeats and discoidin I-like domain 3 (Edil3) is an extracellular matrix protein containing an Arg-Gly-Asp (RGD) motif that binds integrin. Recently, Edil3 has been implicated in various biological processes, including angiogenesis and cellular differentiation. It can inhibit inflammatory bone destruction. The objective of this study was to explore the role of Edil3 in osteoblast differentiation and its underlying molecular mechanisms. In wild-type mice, high expression levels of Edil3 mRNA were observed in isolated calvaria and tibia/femur bones. Immunohistochemical analysis showed that Edil3 protein was localized along periosteum and calcified regions surrounding bone tissues. When murine calvaria-derived MC3T3-E1 cells were cultured in osteogenic medium containing 50 μg/ml ascorbic acid and 5 mM β-glycerophosphate, Edil3 mRNA and protein expression levels were increased. Treatment with Edil3 protein in growth media increased expression levels of alkaline phosphatase and osteocalcin gene and phosphorylation level of extracellular signal-regulated kinase (ERK). Edil3 treatment with osteogenic medium induced mineralization. Treatment with a neutralizing antibody against α5β1 and MEK inhibitor U0126 inhibited Edil3-enhanced osteogenic marker gene expression and mineral deposition. Edil3 increased protein expression levels of transcription factor runt-related transcription factor2 (Runx2). Edil3-induced Runx2 protein expression was suppressed by pretreatment with U0126. Taken together, these results suggest that Edil3 may stimulate osteoblast differentiation and matrix mineralization by increasing expression of Runx2 through α5β1 integrin /ERK pathway.
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Affiliation(s)
- Sin-Hye Oh
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
- Department of Biological Sciences, College of Natural Sciences, Chonnam National University, Gwangju, Republic of Korea
| | - Jung-Woo Kim
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Yuri Kim
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Mi Nam Lee
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Min-Suk Kook
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Eun Young Choi
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Suhn-Young Im
- Department of Biological Sciences, College of Natural Sciences, Chonnam National University, Gwangju, Republic of Korea
| | - Jeong-Tae Koh
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
- * E-mail:
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Duruel T, Çakmak AS, Akman A, Nohutcu RM, Gümüşderelioğlu M. Sequential IGF-1 and BMP-6 releasing chitosan/alginate/PLGA hybrid scaffolds for periodontal regeneration. Int J Biol Macromol 2017; 104:232-241. [DOI: 10.1016/j.ijbiomac.2017.06.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Revised: 05/20/2017] [Accepted: 06/06/2017] [Indexed: 10/19/2022]
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Yan K, Shen Y. Aliskiren has chondroprotective efficacy in a rat model of osteoarthritis through suppression of the local renin-angiotensin system. Mol Med Rep 2017; 16:3965-3973. [PMID: 28765966 PMCID: PMC5646976 DOI: 10.3892/mmr.2017.7110] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 04/25/2017] [Indexed: 01/10/2023] Open
Abstract
The local renin-angiotensin system (RAS) has been reported to have an important role in the pathogenesis and progression of metabolic bone diseases, including osteoarthritis (OA). Aliskiren is the first in a new class of orally effective direct renin inhibitors and is approved for the treatment of hypertension in humans. However, its efficacy in patients with OA is unknown. A rat model of OA was induced to investigate the potential efficacy of aliskiren. Effects of aliskiren on the cartilage structure were detected by safranin O staining and its effects on the widths of the proliferation zone and hypertrophic zone (HZ) of chondrocytes were analyzed by Masson's staining. Tartate-resistant acid phosphatase staining was used to evaluate the effects of aliskiren on osteoclasts in the chondrocytes. Relative histological analyses were performed. Additionally, the expression levels of factors associated with osteoclast differentiation (receptor activator of nuclear factor κB ligand and osteoprotegerin), articular cartilage destruction [tumor necrosis factor-α (TNF-α) and matrix metalloproteinase 9] and osteoblast differentiation [runt related transcription factor 2 (Runx2)], along with RAS components (renin, renin-receptor, angiotensin type 1 receptor (AT1R), AT2R, angiotensin converting enzyme (ACE) and angiotensin II (Ang II)] were detected in samples from the proximal tibias. Aliskiren did not fully suppress the inflammatory reaction in OA model animals and had marginal regulatory effects on biochemical bone markers induced by OA. However, aliskiren attenuated cartilage destruction, abnormal cartilage cellularity and the expansion of the HZ of chondrocytes, and significantly attenuated the expression of interleukin-1, TNF-α, Runx2 and procollagen type I N-terminal propeptide. These chondroprotective properties were accompanied by reductions in the levels of RAS components (renin, Ang II, ACE and AT1R), indicating that aliskiren exerts multiple effects of on bone formation, osteoblast differentiation and articular cartilage protection via the RAS. OA activates the local bone RAS, inhibits bone formation and stimulates bone resorption. Aliskiren, a renin inhibitor, demonstrated chondroprotective efficacy in a rat model of OA through suppression of the local RAS.
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Affiliation(s)
- Kaizhong Yan
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, P.R. China
| | - Yixin Shen
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, P.R. China
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36
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Reed SA, Govoni KE. How mom's diet affects offspring growth and health through modified stem cell function. Anim Front 2017. [DOI: 10.2527/af.2017-0125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Sarah A. Reed
- Department of Animal Science, University of Connecticut, Storrs, CT 06269-4040
| | - Kristen E. Govoni
- Department of Animal Science, University of Connecticut, Storrs, CT 06269-4040
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Deng Y, Zhang M, Chen X, Pu X, Liao X, Huang Z, Yin G. A novel akermanite/poly (lactic-co-glycolic acid) porous composite scaffold fabricated via a solvent casting-particulate leaching method improved by solvent self-proliferating process. Regen Biomater 2017; 4:233-242. [PMID: 28798869 PMCID: PMC5544913 DOI: 10.1093/rb/rbx014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 04/25/2017] [Accepted: 04/28/2017] [Indexed: 01/08/2023] Open
Abstract
Desirable scaffolds for tissue engineering should be biodegradable carriers to supply suitable microenvironments mimicked the extracellular matrices for desired cellular interactions and to provide supports for the formation of new tissues. In this work, a kind of slightly soluble bioactive ceramic akermanite (AKT) powders were aboratively selected and introduced in the PLGA matrix, a novel l-lactide modified AKT/poly (lactic-co-glycolic acid) (m-AKT/PLGA) composite scaffold was fabricated via a solvent casting-particulate leaching method improved by solvent self-proliferating process. The effects of m-AKT contents on properties of composite scaffolds and on MC3T3-E1 cellular behaviors in vitro have been primarily investigated. The fabricated scaffolds exhibited three-dimensional porous networks, in which homogenously distributed cavities in size of 300–400 μm were interconnected by some smaller holes in a size of 100–200 μm. Meanwhile, the mechanical structure of scaffolds was reinforced by the introduction of m-AKT. Moreover, alkaline ionic products released by m-AKT could neutralize the acidic degradation products of PLGA, and the apatite-mineralization ability of scaffolds could be largely improved. More valuably, significant promotions on adhesion, proliferation, and differentiation of MC3T3-E1 have been observed, which implied the calcium, magnesium and especially silidous ions released sustainably from composite scaffolds could regulate the behaviors of osteogenesis-related cells.
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Affiliation(s)
- Yao Deng
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, PR China
| | - Mengjiao Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, PR China
| | - Xianchun Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, PR China
| | - Ximing Pu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, PR China
| | - Xiaoming Liao
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, PR China
| | - Zhongbing Huang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, PR China
| | - Guangfu Yin
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, PR China
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38
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Ugawa Y, Yamamoto T, Kawamura M, Yamashiro K, Shimoe M, Tomikawa K, Hongo S, Maeda H, Takashiba S. Rho-kinase regulates extracellular matrix-mediated osteogenic differentiation of periodontal ligament cells. Cell Biol Int 2017; 41:651-658. [DOI: 10.1002/cbin.10769] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 03/26/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Yuki Ugawa
- Department of Pathophysiology-Periodontal Science; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8525 Japan
| | - Tadashi Yamamoto
- Department of Pathophysiology-Periodontal Science; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8525 Japan
| | - Mari Kawamura
- Department of Pathophysiology-Periodontal Science; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8525 Japan
| | - Keisuke Yamashiro
- Department of Pathophysiology-Periodontal Science; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8525 Japan
| | - Masayuki Shimoe
- Department of Pathophysiology-Periodontal Science; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8525 Japan
| | - Kazuya Tomikawa
- Department of Pathophysiology-Periodontal Science; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8525 Japan
| | - Shoichi Hongo
- Department of Pathophysiology-Periodontal Science; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8525 Japan
| | - Hiroshi Maeda
- Department of Pathophysiology-Periodontal Science; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8525 Japan
| | - Shogo Takashiba
- Department of Pathophysiology-Periodontal Science; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8525 Japan
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39
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Yang J, Wang S, Wang F, Mu X, Qu Y, Zhao Z, Yu X. Downregulation of miR-10b promotes osteoblast differentiation through targeting Bcl6. Int J Mol Med 2017; 39:1605-1612. [DOI: 10.3892/ijmm.2017.2955] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 04/05/2017] [Indexed: 11/06/2022] Open
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40
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Mao Z, Fang Z, Yang Y, Chen X, Wang Y, Kang J, Qu X, Yuan W, Dai K. Strontium ranelate-loaded PLGA porous microspheres enhancing the osteogenesis of MC3T3-E1 cells. RSC Adv 2017; 7:24607-24615. [DOI: 10.1039/c7ra01445g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023] Open
Abstract
Biodegradable poly lactic-co-glycolic acid (PLGA) has been used as a tissue engineering scaffold as well as a carrier for the delivery of proteins, drugs, and other macromolecules.
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Affiliation(s)
- Zhenyang Mao
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - Zhiwei Fang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Yunqi Yang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Xuan Chen
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Yugang Wang
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - Jian Kang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Xinhua Qu
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - Weien Yuan
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Kerong Dai
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
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41
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Folkert J, Meresta A, Gaber T, Miksch K, Buttgereit F, Detert J, Pischon N, Gurzawska K. Nanocoating with plant-derived pectins activates osteoblast response in vitro. Int J Nanomedicine 2016; 12:239-249. [PMID: 28096669 PMCID: PMC5207473 DOI: 10.2147/ijn.s99020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
A new strategy to improve osseointegration of implants is to stimulate adhesion of bone cells, bone matrix formation, and mineralization at the implant surface by modifying surface coating on the nanoscale level. Plant-derived pectins have been proposed as potential candidates for surface nanocoating of orthopedic and dental titanium implants due to 1) their osteogenic stimulation of osteoblasts to mineralize and 2) their ability to control pectin structural changes. The aim of this study was to evaluate in vitro the impact of the nanoscale plant-derived pectin Rhamnogalacturonan-I (RG-I) from potato on the osteogenic response of murine osteoblasts. RG-I from potato pulps was isolated, structurally modified, or left unmodified. Tissue culture plates were either coated with modified RG-I or unmodified RG-I or - as a control - left uncoated. The effect of nanocoating on mice osteoblast-like cells MC3T3-E1 and primary murine osteoblast with regard to proliferation, osteogenic response in terms of mineralization, and gene expression of Runt-related transcription factor 2 (Runx2), alkaline phosphate (Alpl), osteocalcin (Bglap), α-1 type I collagen (Col1a1), and receptor activator of NF-κB ligand (Rankl) were analyzed after 3, 7, 14, and 21 days, respectively. Nanocoating with pectin RG-Is increased proliferation and mineralization of MC3T3-E1 and primary osteoblast as compared to osteoblasts cultured without nanocoating. Moreover, osteogenic transcriptional response of osteoblasts was induced by nanocoating in terms of gene induction of Runx2, Alpl, Bglap, and Col1a1 in a time-dependent manner - of note - to the highest extent under the PA-coating condition. In contrast, Rankl expression was initially reduced by nanocoating in MC3T3-E1 or remained unaltered in primary osteoblast as compared to the uncoated controls. Our results showed that nanocoating of implants with modified RG-I beneficially 1) supports osteogenesis, 2) has the capacity to improve osseointegration of implants, and is therefore 3) a potential candidate for nanocoating of bone implants.
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Affiliation(s)
- J Folkert
- Environmental Biotechnology Department, Faculty of Power and Environmental, Silesian University of Technology, Gliwice, Poland
| | - A Meresta
- Environmental Biotechnology Department, Faculty of Power and Environmental, Silesian University of Technology, Gliwice, Poland
| | - T Gaber
- Department of Rheumatology and Clinical Immunology
| | - K Miksch
- Environmental Biotechnology Department, Faculty of Power and Environmental, Silesian University of Technology, Gliwice, Poland
| | - F Buttgereit
- Department of Rheumatology and Clinical Immunology
| | - J Detert
- Department of Rheumatology and Clinical Immunology
| | - N Pischon
- Department of Periodontology, Charité-Universitätsmedizin, Berlin, Germany
| | - K Gurzawska
- Department of Periodontology, Charité-Universitätsmedizin, Berlin, Germany; Department of Oral Surgery, The School of Dentistry, University of Birmingham, Birmingham, UK
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42
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Qin C, D’Souza R, Feng J. Dentin Matrix Protein 1 (DMP1): New and Important Roles for Biomineralization and Phosphate Homeostasis. J Dent Res 2016; 86:1134-41. [DOI: 10.1177/154405910708601202] [Citation(s) in RCA: 170] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Previously, non-collagenous matrix proteins, such as DMP1, were viewed with little biological interest. The last decade of research has increased our understanding of DMP1, as it is now widely recognized that this protein is expressed in non-mineralized tissues, as well as in cancerous lesions. Protein chemistry studies have shown that the full length of DMP1, as a precursor, is cleaved into two distinct forms: the C-terminal and N-terminal fragments. Functional studies have demonstrated that DMP1 is essential in the maturation of odontoblasts and osteoblasts, as well as in mineralization via local and systemic mechanisms. The identification of DMP1 mutations in humans has led to the discovery of a novel disease: autosomal-recessive hypophosphatemic rickets. Furthermore, the regulation of phosphate homeostasis by DMP1 through FGF23, a newly identified hormone that is released from bone and targeted in the kidneys, sets a new direction for research that associates biomineralization with phosphate regulation.
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Affiliation(s)
- C. Qin
- Department of Biomedical Sciences, Texas A&M Health Science Center, Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
| | - R. D’Souza
- Department of Biomedical Sciences, Texas A&M Health Science Center, Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
| | - J.Q. Feng
- Department of Biomedical Sciences, Texas A&M Health Science Center, Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
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43
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Yin C, Zhang Y, Cai Q, Li B, Yang H, Wang H, Qi H, Zhou Y, Meng W. Effects of the micro-nano surface topography of titanium alloy on the biological responses of osteoblast. J Biomed Mater Res A 2016; 105:757-769. [PMID: 27756111 DOI: 10.1002/jbm.a.35941] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/13/2016] [Accepted: 10/17/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Chengcheng Yin
- Department of Dental Implantology, School and Hospital of Stomatology; Jilin University, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling; Changchun 130021 People's Republic of China
| | - Yanjing Zhang
- Department of Dental Implantology, School and Hospital of Stomatology; Jilin University, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling; Changchun 130021 People's Republic of China
| | - Qing Cai
- Department of Dental Implantology, School and Hospital of Stomatology; Jilin University, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling; Changchun 130021 People's Republic of China
| | - Baosheng Li
- Department of Dental Implantology, School and Hospital of Stomatology; Jilin University, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling; Changchun 130021 People's Republic of China
| | - Hua Yang
- Department of Dental Implantology, School and Hospital of Stomatology; Jilin University, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling; Changchun 130021 People's Republic of China
| | - Heling Wang
- Department of Dental Implantology, School and Hospital of Stomatology; Jilin University, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling; Changchun 130021 People's Republic of China
| | - Hua Qi
- Department of Dental Implantology, School and Hospital of Stomatology; Jilin University, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling; Changchun 130021 People's Republic of China
| | - Yanmin Zhou
- Department of Dental Implantology, School and Hospital of Stomatology; Jilin University, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling; Changchun 130021 People's Republic of China
| | - Weiyan Meng
- Department of Dental Implantology, School and Hospital of Stomatology; Jilin University, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling; Changchun 130021 People's Republic of China
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Jain S, Krishna Meka SR, Chatterjee K. Curcumin eluting nanofibers augment osteogenesis toward phytochemical based bone tissue engineering. ACTA ACUST UNITED AC 2016; 11:055007. [PMID: 27710925 DOI: 10.1088/1748-6041/11/5/055007] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Curcumin is a phenolic compound isolated from Curcuma longa that is known to exhibit wide ranging biological activity including potential benefits for bone growth. The aim of this work was to engineer curcumin eluting tissue scaffolds and investigate their potential use in bone tissue regeneration. We prepared curcumin loaded poly(ε-caprolactone) (PCL) nanofibers by electrospinning. Morphological characterization of the nanofibers revealed that the average diameter of neat fibers and that of fibers with 1 wt% and 5 wt% curcumin is 840 ± 130 nm, 827 ± 129 nm and 680 ± 110 nm, respectively. Fourier transformation infrared spectroscopy and 1H nuclear magnetic resonance confirmed the successful loading of the drug in fibers. In aqueous medium, the fibers released ≈18% of the encapsulated drug in 3 d and ≈60% in 9 d. The cell response to the curcumin loaded nanofibers was assessed using MC3T3-E1 pre-osteoblasts. Cell proliferation was moderated with increased loading of curcumin and was 50% lower on the fibers containing 5% curcumin at day 10 than the control fibers. Osteogenesis was confirmed by assaying the expression of alkaline phosphatase and staining of mineral deposits by Alizarin red stain, which were both markedly higher for 1% curcumin compared to neat polymer but lower for 5% curcumin. Mineral deposition was also confirmed chemically by Fourier transform infrared spectroscopy. These results were corroborated by increased gene and protein expression of known osteogenic markers in 1% curcumin. Thus, controlled release of curcumin from polymer scaffolds is a promising strategy for bone tissue regeneration.
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Affiliation(s)
- Shubham Jain
- Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
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45
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Jing D, Zhai M, Tong S, Xu F, Cai J, Shen G, Wu Y, Li X, Xie K, Liu J, Xu Q, Luo E. Pulsed electromagnetic fields promote osteogenesis and osseointegration of porous titanium implants in bone defect repair through a Wnt/β-catenin signaling-associated mechanism. Sci Rep 2016; 6:32045. [PMID: 27555216 PMCID: PMC4995433 DOI: 10.1038/srep32045] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 08/02/2016] [Indexed: 11/09/2022] Open
Abstract
Treatment of osseous defects remains a formidable clinical challenge. Porous titanium alloys (pTi) have been emerging as ideal endosseous implants due to the excellent biocompatibility and structural properties, whereas inadequate osseointegration poses risks for unreliable long-term implant stability. Substantial evidence indicates that pulsed electromagnetic fields (PEMF), as a safe noninvasive method, inhibit osteopenia/osteoporosis experimentally and clinically. We herein investigated the efficiency and potential mechanisms of PEMF on osteogenesis and osseointegration of pTi in vitro and in vivo. We demonstrate that PEMF enhanced cellular attachment and proliferation, and induced well-organized cytoskeleton for in vitro osteoblasts seeded in pTi. PEMF promoted gene expressions in Runx2, OSX, COL-1 and Wnt/β-catenin signaling. PEMF-stimulated group exhibited higher Runx2, Wnt1, Lrp6 and β-catenin protein expressions. In vivo results via μCT and histomorphometry show that 6-week and 12-week PEMF promoted osteogenesis, bone ingrowth and bone formation rate of pTi in rabbit femoral bone defect. PEMF promoted femoral gene expressions of Runx2, BMP2, OCN and Wnt/β-catenin signaling. Together, we demonstrate that PEMF improve osteogenesis and osseointegration of pTi by promoting skeletal anabolic activities through a Wnt/β-catenin signaling-associated mechanism. PEMF might become a promising biophysical modality for enhancing the repair efficiency and quality of pTi in bone defect.
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Affiliation(s)
- Da Jing
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Mingming Zhai
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Shichao Tong
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Fei Xu
- Department of Radiation Oncology, PLA 302 Hospital, Beijing, China
| | - Jing Cai
- Department of Endocrinology, Xijing hospital, Fourth Military Medical University, Xi'an, China
| | - Guanghao Shen
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Yan Wu
- Institute of Orthopaedics, Xijing hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaokang Li
- Institute of Orthopaedics, Xijing hospital, Fourth Military Medical University, Xi'an, China
| | - Kangning Xie
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Juan Liu
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Qiaoling Xu
- Department of Nursing, Fourth Military Medical University, Xi'an, China
| | - Erping Luo
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
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46
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Ball H, Moussa F, Mbimba T, Orman R, Safadi F, Cooper L. Methods and insights from the characterization of osteoprogenitor cells of bats (Mammalia: Chiroptera). Stem Cell Res 2016; 17:54-61. [DOI: 10.1016/j.scr.2016.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 05/19/2016] [Accepted: 05/20/2016] [Indexed: 01/14/2023] Open
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47
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Fang J, Yamaza H, Uchiumi T, Hoshino Y, Masuda K, Hirofuji Y, Wagener FADTG, Kang D, Nonaka K. Dihydroorotate dehydrogenase depletion hampers mitochondrial function and osteogenic differentiation in osteoblasts. Eur J Oral Sci 2016; 124:241-5. [PMID: 27086500 DOI: 10.1111/eos.12270] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/26/2016] [Indexed: 01/19/2023]
Abstract
Mutation of the dihydroorotate dehydrogenase (DHODH) gene is responsible for Miller syndrome, which is characterized by craniofacial malformations with limb abnormalities. We previously demonstrated that DHODH was involved in forming a mitochondrial supercomplex and that mutated DHODH led to protein instability, loss of enzyme activity, and increased levels of reactive oxygen species in HeLa cells. To explore the etiology of Miller syndrome in more detail, we investigated the effects of DHODH inhibition in the cells involved in skeletal structure. Dihydroorotate dehydrogenase in MC3T3-E1 cells derived from mouse calvaria osteoblast precursor cells was knocked down by specific small interfering RNAs (siRNAs), and cell proliferation, ATP production, and expression of bone-related genes were investigated in these cells. After depletion of DHODH using specific siRNAs, inhibition of cell proliferation and cell cycle arrest occurred in MC3T3-E1 cells. In addition, ATP production was reduced in whole cells, especially in mitochondria. Furthermore, the levels of runt-related transcription factor 2 (Runx2) and osteocalcin (Ocn) mRNAs were lower in DHODH siRNA-treated cells compared with controls. These data suggest that depletion of DHODH affects the differentiation and maturation of osteoblasts. This study shows that mitochondrial dysfunction by DHODH depletion in osteoblasts can be directly linked to the abnormal bone formation in Miller syndrome.
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Affiliation(s)
- JingXian Fang
- Department of Pediatric Dentistry, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan.,Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Orthodontics and Craniofacial Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, the Netherlands.,Department of Pediatric Dentistry, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Haruyoshi Yamaza
- Department of Pediatric Dentistry, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takeshi Uchiumi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiro Hoshino
- Department of Pediatric Dentistry, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Keiji Masuda
- Department of Pediatric Dentistry, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yuta Hirofuji
- Department of Pediatric Dentistry, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Frank A D T G Wagener
- Department of Orthodontics and Craniofacial Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuaki Nonaka
- Department of Pediatric Dentistry, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
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48
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Mohammadian F, Abhari A, Nejati-Koshki K, Akbarzadeh A. New state of nanofibers in regenerative medicine. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:204-210. [DOI: 10.3109/21691401.2016.1170696] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Farideh Mohammadian
- Department of Medical Biotechnology, Faculty of Advance Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Abhari
- Department of Clinical Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kazem Nejati-Koshki
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Abolfazl Akbarzadeh
- Department of Medical Nanotechnology, Faculty of Advance Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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49
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Chen B, Lin T, Yang X, Li Y, Xie D, Cui H. Intermittent parathyroid hormone (1-34) application regulates cAMP-response element binding protein activity to promote the proliferation and osteogenic differentiation of bone mesenchymal stromal cells, via the cAMP/PKA signaling pathway. Exp Ther Med 2016; 11:2399-2406. [PMID: 27284327 DOI: 10.3892/etm.2016.3177] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 03/01/2016] [Indexed: 12/14/2022] Open
Abstract
The potential effects of intermittent parathyroid hormone (1-34) [PTH (1-34)] administration on bone formation have previously been investigated. A number of studies have suggested that the cyclic adenosine monophosphate/protein kinase A (cAMP/PKA) pathway is associated with PTH-induced osteogenic differentiation. However, the precise signaling pathways and molecular mechanism by which PTH (1-34) induces the osteogenic differentiation of bone mesenchymal stromal cells (BMSCs) remain elusive. The purpose of the present study was to investigate the mechanism underlying the effect of intermittent PTH (1-34) application on the proliferation and osteogenic differentiation of BMSCs. BMSCs were randomly divided into four groups, as follows: Osteogenic medium (control group); osteogenic medium and intermittent PTH (1-34); osteogenic medium and intermittent PTH (1-34) plus the adenylyl cyclase activator forskolin; and osteogenic medium and intermittent PTH (1-34) plus the PKA inhibitor H-89. A cell proliferation assay revealed that PTH (1-34) stimulates BMSC proliferation via the cAMP/PKA pathway. Furthermore, reverse transcription-quantitative polymerase chain reaction, alkaline phosphatase activity testing and cell examination using Alizarin Red S staining demonstrated that PTH (1-34) administration promotes osteogenic differentiation and mineralization, mediated by the cAMP/PKA pathway. Crucially, the results of western blot analyses suggested that PTH (1-34) treatment and, to a greater degree, PTH (1-34) plus forskolin treatment caused an increase in phosphorylated cAMP response element binding protein (p-CREB) expression, but the effect of PTH on p-CREB expression was blocked by H-89. In conclusion, the current study demonstrated that intermittent PTH (1-34) administration regulates downstream proteins, particularly p-CREB, in the cAMP/PKA signaling pathway, to enhance the proliferation, osteogenic differentiation and mineralization of BMSCs.
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Affiliation(s)
- Bailing Chen
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Tao Lin
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xiaoxi Yang
- Department of Spine Surgery, Chinese PLA General Hospital (301 Hospital), Beijing 100853, P.R. China
| | - Yiqiang Li
- Department of Orthopedics, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510623, P.R. China
| | - Denghui Xie
- Department of Spine Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Haowen Cui
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
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50
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Kim SE, Lee DW, Yun YP, Shim KS, Jeon DI, Rhee JK, Kim HJ, Park K. Heparin-immobilized hydroxyapatite nanoparticles as a lactoferrin delivery system for improving osteogenic differentiation of adipose-derived stem cells. Biomed Mater 2016; 11:025004. [DOI: 10.1088/1748-6041/11/2/025004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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