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Yan C, Zhang P, Qin Q, Jiang K, Luo Y, Xiang C, He J, Chen L, Jiang D, Cui W, Li Y. 3D-printed bone regeneration scaffolds modulate bone metabolic homeostasis through vascularization for osteoporotic bone defects. Biomaterials 2024; 311:122699. [PMID: 38981153 DOI: 10.1016/j.biomaterials.2024.122699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/07/2024] [Accepted: 07/03/2024] [Indexed: 07/11/2024]
Abstract
The treatment of osteoporotic bone defects poses a challenge due to the degradation of the skeletal vascular system and the disruption of local bone metabolism within the osteoporotic microenvironment. However, it is feasible to modulate the disrupted local bone metabolism imbalance through enhanced vascularization, a theory termed "vascularization-bone metabolic balance". This study developed a 3D-printed polycaprolactone (PCL) scaffold modified with EPLQLKM and SVVYGLR peptides (PCL-SE). The EPLQLKM peptide attracts bone marrow-derived mesenchymal stem cells (BMSCs), while the SVVYGLR peptide enhances endothelial progenitor cells (EPCs) vascular differentiation, thus regulating bone metabolism and fostering bone regeneration through the paracrine effects of EPCs. Further mechanistic research demonstrated that PCL-SE promoted the vascularization of EPCs, activating the Notch signaling pathway in BMSCs, leading to the upregulation of osteogenesis-related genes and the downregulation of osteoclast-related genes, thereby restoring bone metabolic balance. Furthermore, PCL-SE facilitated the differentiation of EPCs into "H"-type vessels and the recruitment of BMSCs to synergistically enhance osteogenesis, resulting in the regeneration of normal microvessels and bone tissues in cases of femoral condylar bone defects in osteoporotic SD rats. This study suggests that PCL-SE supports in-situ vascularization, remodels bone metabolic translational balance, and offers a promising therapeutic regimen for osteoporotic bone defects.
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Affiliation(s)
- Caiping Yan
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Orthopedic Laboratory of Chongqing Medical University, No.1 Youyi Road, Yuzhong District, Chongqing, 400016, PR China; Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, PR China
| | - Pengrui Zhang
- Department of Orthopedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Qiwei Qin
- Department of Orthopedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Ke Jiang
- Department of Orthopedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Yue Luo
- Department of Orthopedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Chao Xiang
- Department of Orthopedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China; Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, PR China
| | - Jiangtao He
- Department of Orthopedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Lu Chen
- Department of Orthopedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China
| | - Dianming Jiang
- Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, PR China
| | - Wenguo Cui
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China.
| | - Yuling Li
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Orthopedic Laboratory of Chongqing Medical University, No.1 Youyi Road, Yuzhong District, Chongqing, 400016, PR China; Department of Orthopedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, PR China.
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Jin L, Long Y, Zhang Q, Long J. MiRNAs regulate cell communication in osteogenesis-angiogenesis coupling during bone regeneration. Mol Biol Rep 2023; 50:8715-8728. [PMID: 37642761 DOI: 10.1007/s11033-023-08709-6] [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: 03/24/2023] [Accepted: 07/25/2023] [Indexed: 08/31/2023]
Abstract
Bone regeneration is a complex process that requires not only the participation of multiple cell types, but also signal communication between cells. The two basic processes of osteogenesis and angiogenesis are closely related to bone regeneration and bone homeostasis. H-type vessels are a subtype of bone vessels characterized by high expression of CD31 and EMCN. These vessels play a key role in the regulation of bone regeneration and are important mediators of coupling between osteogenesis and angiogenesis. Molecular regulation between different cell types is important for coordination of osteogenesis and angiogenesis that promotes bone regeneration. MiRNAs are small non-coding RNAs that predominantly regulate gene expression at the post-transcriptional level and are closely related to cell communication. Specifically, miRNAs transduce external stimuli through various cell signaling pathways and cause a series of physiological and pathological effects. They are also deeply involved in the bone repair process. This review focuses on three signaling pathways related to osteogenesis-angiogenesis coupling, as well as the miRNAs involved in these pathways. Elucidation of the molecular mechanisms governing osteogenesis and angiogenesis is of great significance for bone regeneration.
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Affiliation(s)
- Liangyu Jin
- The State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, 610041, PR China
- Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, PR China
- National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, 610041, PR China
| | - Yifei Long
- The State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, 610041, PR China
- National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, 610041, PR China
| | - Qiuling Zhang
- The State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, 610041, PR China
- Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, PR China
- National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, 610041, PR China
| | - Jie Long
- The State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, 610041, PR China.
- Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, PR China.
- National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, 610041, PR China.
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Mahapatra C, Kumar P, Paul MK, Kumar A. Angiogenic stimulation strategies in bone tissue regeneration. Tissue Cell 2022; 79:101908. [DOI: 10.1016/j.tice.2022.101908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/24/2022] [Accepted: 08/22/2022] [Indexed: 11/28/2022]
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Deng S, Lei T, Chen H, Zheng H, Xiao Z, Cai S, Hang Z, Xiong W, Yu Y, Zhang X, Yang Y, Bi W, Du H. Metformin pre-treatment of stem cells from human exfoliated deciduous teeth promotes migration and angiogenesis of human umbilical vein endothelial cells for tissue engineering. Cytotherapy 2022; 24:1095-1104. [PMID: 36064533 DOI: 10.1016/j.jcyt.2022.07.003] [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: 10/04/2021] [Revised: 06/16/2022] [Accepted: 07/05/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND AIMS Stem cells from human exfoliated deciduous teeth (SHED) play a significant role in tissue engineering and regenerative medicine. Angiogenesis is crucial in tissue regeneration and a primary target of regenerative medicine. As a first-line anti-diabetic drug, metformin demonstrates numerous valuable impacts on stem cells. This study aimed to explore metformin's impact and mechanism of action on SHED-mediated angiogenesis. METHODS First, cell proliferation; flow cytometry; osteogenic, adipogenic and chondrogenic induction; and proteomics analyses were conducted to explore the role of metformin in SHED. Subsequently, migration and tube formation assays were used to evaluate chemotaxis and angiogenesis enhancement by SHED pre-treated with metformin under co-culture conditions in vitro, and relative messenger RNA expression levels were determined by quantitative reverse transcription polymerase chain reaction. Finally, nude mice were used for in vivo tube formation assay, and sections were analyzed through immunohistochemistry staining with anti-human CD31 antibody. RESULTS Metformin significantly promoted SHED proliferation as well as osteogenic, adipogenic and chondrogenic differentiation. Proteomics showed that metformin significantly upregulated 124 differentially abundant proteins involved in intracellular processes, including various proteins involved in cell migration and angiogenesis, such as MAPK1. The co-culture system demonstrated that SHED pre-treated with metformin significantly improved the migration and angiogenesis of human umbilical vein endothelial cells. In addition, SHED pre-treated with metformin possessed greater ability to promote angiogenesis in vivo. CONCLUSIONS In summary, the authors' findings illustrate metformin's mechanism of action on SHED and confirm that SHED pre-treated with metformin exhibits a strong capacity for promoting angiogenesis. This helps in promoting the application of dental pulp-derived stem cells pre-treated with metformin in regeneration engineering.
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Affiliation(s)
- Shiwen Deng
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China; School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Tong Lei
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China; Daxing Research Institute, University of Science and Technology Beijing, Beijing, China
| | - Hongyu Chen
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Huiting Zheng
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Zhuangzhuang Xiao
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China; Daxing Research Institute, University of Science and Technology Beijing, Beijing, China
| | - Shanglin Cai
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China; Daxing Research Institute, University of Science and Technology Beijing, Beijing, China
| | - Zhongci Hang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China; Daxing Research Institute, University of Science and Technology Beijing, Beijing, China
| | - Weini Xiong
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Yanqing Yu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Xiaoshuang Zhang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China; Daxing Research Institute, University of Science and Technology Beijing, Beijing, China
| | - Yanjie Yang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China; Daxing Research Institute, University of Science and Technology Beijing, Beijing, China
| | - Wangyu Bi
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China; Daxing Research Institute, University of Science and Technology Beijing, Beijing, China
| | - Hongwu Du
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China; Daxing Research Institute, University of Science and Technology Beijing, Beijing, China.
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Shao J, Liu S, Zhang M, Chen S, Gan S, Chen C, Chen W, Li L, Zhu Z. A dual role of HIF1α in regulating osteogenesis–angiogenesis coupling. Stem Cell Res Ther 2022; 13:59. [PMID: 35123567 PMCID: PMC8818171 DOI: 10.1186/s13287-022-02742-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/17/2022] [Indexed: 01/01/2023] Open
Abstract
Objectives The hypoxia-inducible factor 1-α (HIF1α), a key molecule in mediating bone-vessel crosstalk, has been considered a promising target for treating osteoporosis caused by gonadal hormones. However, senile osteoporosis, with accumulated senescent cells in aged bone, has a distinct pathogenesis. The study aimed at revealing the unknown role of HIF1α in aged bone, thus broadening its practical application in senile osteoporosis. Materials and methods Femurs and tibias were collected from untreated mice of various ages (2 months old, 10 months old, 18 months old) and treated mice (2 months old, 18 months old) underwent 4-w gavage of 2-methoxyestradiol (a kind of HIF1α inhibitor). Bone-vessel phenotypes were observed by microfil infusion, micro-CT and HE staining. Markers of senescence, osteogenesis, angiogenesis, oxidative stress and expression of HIF1α were detected by senescence β-galactosidase staining, qRT-PCR, western blot and immunostaining, respectively. Furthermore, bone mesenchymal stem cells from young mice (YBMSCs) and aged mice (ABMSCs) were transfected by knockout siRNA and overexpression plasmid of HIF1α. Senescence β-galactosidase staining, Cell Counting Kit-8, transwell assay, alkaline phosphatase staining, alizarin red-S staining and angiogenesis tests were utilized to assess the biological properties of two cell types. Then, Pifithrin-α and Nutlin-3a were adopted to intervene p53 of the two cells. Finally, H2O2 on YBMSCs and NAC on ABMSCs were exploited to change their status of oxidative stress to do a deeper detection. Results Senescent phenotypes, impaired osteogenesis–angiogenesis coupling and increased HIF1α were observed in aged bone and ABMSCs. However, 2-methoxyestradiol improved bone-vessel metabolism of aged mice while damaged that of young mice. Mechanically, HIF1α showed opposed effects in regulating the cell migration and osteogenesis–angiogenesis coupling of YBMSCs and ABMSCs, but no remarked effect on the proliferation of either cell type. Pifithrin-α upregulated the osteogenic and angiogenic markers of HIF1α-siRNA-transfected YBMSCs, and Nutlin-3a alleviated those of HIF1α-siRNA-transfected ABMSCs. The HIF1α-p53 relationship was negative in YBMSCs and NAC-treated ABMSCs, but positive in ABMSCs and H2O2-treated YBMSCs. Conclusion The dual role of HIF1α in osteogenesis–angiogenesis coupling may depend on the ROS-mediated HIF1α-p53 relationship. New awareness about HIF1α will be conducive to its future application in senile osteoporosis. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-02742-1.
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Petrillo S, Genova T, Chinigò G, Roato I, Scarpellino G, Kopecka J, Altruda F, Tolosano E, Riganti C, Mussano F, Munaron L. Endothelial Cells Promote Osteogenesis by Establishing a Functional and Metabolic Coupling With Human Mesenchymal Stem Cells. Front Physiol 2022; 12:813547. [PMID: 35087424 PMCID: PMC8787057 DOI: 10.3389/fphys.2021.813547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/14/2021] [Indexed: 11/13/2022] Open
Abstract
Bone formation involves a complex crosstalk between endothelial cells (EC) and osteodifferentiating stem cells. This functional interplay is greatly mediated by the paracrine and autocrine action of soluble factors released at the vasculature-bone interface. This study elucidates the molecular and functional responses triggered by this intimate interaction. In this study, we showed that human dermal microvascular endothelial cells (HMEC) induced the expression of pro-angiogenic factors in stem cells from human exfoliated deciduous teeth (SHED) and sustain their osteo-differentiation at the same time. In contrast, osteodifferentiating SHED increased EC recruitment and promoted the formation of complex vascular networks. Moreover, HMEC enhanced anaerobic glycolysis in proliferating SHED without compromising their ability to undergo the oxidative metabolic shift required for adequate osteo-differentiation. Taken together, these findings provide novel insights into the molecular mechanism underlying the synergistic cooperation between EC and stem cells during bone tissue renewal.
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Affiliation(s)
- Sara Petrillo
- Molecular Biotechnology Center (MBC), Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Tullio Genova
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Giorgia Chinigò
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Ilaria Roato
- Department of Surgical Sciences, C.I.R. Dental School, University of Turin, Turin, Italy
| | - Giorgia Scarpellino
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Joanna Kopecka
- Department of Oncology, University of Turin, Turin, Italy
| | - Fiorella Altruda
- Molecular Biotechnology Center (MBC), Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Emanuela Tolosano
- Molecular Biotechnology Center (MBC), Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Chiara Riganti
- Department of Oncology, University of Turin, Turin, Italy
| | - Federico Mussano
- Department of Surgical Sciences, C.I.R. Dental School, University of Turin, Turin, Italy
| | - Luca Munaron
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
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Shahabipour F, Tavafoghi M, Aninwene GE, Bonakdar S, Oskuee RK, Shokrgozar MA, Potyondy T, Alambeigi F, Ahadian S. Coaxial 3D bioprinting of tri-polymer scaffolds to improve the osteogenic and vasculogenic potential of cells in co-culture models. J Biomed Mater Res A 2022; 110:1077-1089. [PMID: 35025130 DOI: 10.1002/jbm.a.37354] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 12/20/2021] [Accepted: 12/27/2021] [Indexed: 12/20/2022]
Abstract
The crosstalk between osteoblasts and endothelial cells is critical for bone vascularization and regeneration. Here, we used a coaxial 3D bioprinting method to directly print an osteon-like structure by depositing angiogenic and osteogenic bioinks from the core and shell regions of the coaxial nozzle, respectively. The bioinks were made up of gelatin, gelatin methacryloyl (GelMA), alginate, and hydroxyapatite (HAp) nanoparticles and were loaded with human umbilical vascular endothelial cells (HUVECs) and osteoblasts (MC3T3) in the core and shell regions, respectively. Conventional monoaxial 3D bioprinting was used as a control method, where the hydrogels, HAp nanoparticles, MC3T3 cells, and HUVECs were all mixed in one bioink and printed from the core nozzle. As a result, the bioprinted scaffolds were composed of cell-laden fibers with either a core-shell or homogenous structure, providing a non-contact (indirect) or contact (direct) co-culture of MC3T3 cells and HUVECs, respectively. Both structures supported the 3D culture of HUVECs and osteoblasts over a long period. The scaffolds also supported the expression of osteogenic and angiogenic factors. However, the gene expression was significantly higher for the core-shell structure than the homogeneous structure due to the well-defined distribution of osteoblasts and endothelial cells and the formation of vessel-like structures in the co-culture system. Our results indicated that the coaxial bioprinting technique, with the ability to create a non-contact co-culture of cells, can provide a more efficient bioprinting strategy for printing highly vascularized and bioactive bone structures.
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Affiliation(s)
- Fahimeh Shahabipour
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran.,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Maryam Tavafoghi
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, California, USA.,Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, California, USA
| | - George E Aninwene
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, California, USA.,Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, California, USA.,California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, California, USA
| | - Shahin Bonakdar
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Kazemi Oskuee
- Biomedical Applied Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Tyler Potyondy
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, California, USA.,Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, California, USA
| | - Farshid Alambeigi
- Walker Department of Mechanical Engineering, University of Texas at Austin, Austin, Texas, USA
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation, Los Angeles, California, USA
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Zheng S, Zhou C, Yang H, Li J, Feng Z, Liao L, Li Y. Melatonin Accelerates Osteoporotic Bone Defect Repair by Promoting Osteogenesis-Angiogenesis Coupling. Front Endocrinol (Lausanne) 2022; 13:826660. [PMID: 35273570 PMCID: PMC8902312 DOI: 10.3389/fendo.2022.826660] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/18/2022] [Indexed: 01/10/2023] Open
Abstract
Previous studies have revealed that melatonin could play a role in anti-osteoporosis and promoting osteogenesis. However, the effects of melatonin treatment on osteoporotic bone defect and the mechanism underlying the effects of melatonin on angiogenesis are still unclear. Our study was aimed to investigate the potential effects of melatonin on angiogenesis and osteoporotic bone defect. Bone marrow mesenchymal stem cells (BMSCs) were isolated from the femur and tibia of rats. The BMSC osteogenic ability was assessed using alkaline phosphatase (ALP) staining, alizarin red S staining, qRT-PCR, western blot, and immunofluorescence. BMSC-mediated angiogenic potentials were determined using qRT-PCR, western blot, enzyme-linked immunosorbent assay, immunofluorescence, scratch wound assay, transwell migration assay, and tube formation assay. Ovariectomized (OVX) rats with tibia defect were used to establish an osteoporotic bone defect model and then treated with melatonin. The effects of melatonin treatment on osteoporotic bone defect in OVX rats were analyzed using micro-CT, histology, sequential fluorescent labeling, and biomechanical test. Our study showed that melatonin promoted both osteogenesis and angiogenesis in vitro. BMSCs treated with melatonin indicated higher expression levels of osteogenesis-related markers [ALP, osteocalcin (OCN), runt-related transcription factor 2, and osterix] and angiogenesis-related markers [vascular endothelial growth factor (VEGF), angiopoietin-2, and angiopoietin-4] compared to the untreated group. Significantly, melatonin was not able to facilitate human umbilical vein endothelial cell angiogenesis directly, but it possessed the ability to promote BMSC-mediated angiogenesis by upregulating the VEGF levels. In addition, we further found that melatonin treatment increased bone mineralization and formation around the tibia defect in OVX rats compared with the control group. Immunohistochemical staining indicated higher expression levels of osteogenesis-related marker (OCN) and angiogenesis-related markers (VEGF and CD31) in the melatonin-treated OVX rats. Then, it showed that melatonin treatment also increased the bone strength of tibia defect in OVX rats, with increased ultimate load and stiffness, as performed by three-point bending test. In conclusion, our study demonstrated that melatonin could promote BMSC-mediated angiogenesis and promote osteogenesis-angiogenesis coupling. We further found that melatonin could accelerate osteoporotic bone repair by promoting osteogenesis and angiogenesis in OVX rats. These findings may provide evidence for the potential application of melatonin in osteoporotic bone defect.
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Affiliation(s)
- Sheng Zheng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Chunhao Zhou
- Department of Orthopedics-Spine Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Han Yang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Junhua Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Ziyu Feng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Liqing Liao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yikai Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- *Correspondence: Yikai Li,
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Li L, Li J, Zou Q, Zuo Y, Lin L, Cai B, Li Y. Lotus root and osteons-inspired channel structural scaffold mediate cell biomineralization and vascularized bone tissue regeneration. J Biomed Mater Res B Appl Biomater 2021; 110:1178-1191. [PMID: 34905286 DOI: 10.1002/jbm.b.34991] [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: 08/12/2021] [Revised: 11/19/2021] [Accepted: 12/05/2021] [Indexed: 11/05/2022]
Abstract
The interconnectivity of porous scaffold is vital for cell and tissue infiltration, and vascular networks formation, determining the successful bone regeneration in large bone defects. Here, inspired by the lotus-root and Haversian system of natural bone, a nano-hydroxyapatite/polyurethane (n-HA/PU) lotus root-like scaffold inlaid with micro holes on the wall of the adjacent channel was utilized to mediate cell biomineralization and vascularized bone tissue regeneration. Such a particular lotus-type structure remarkably promoted cells to proliferate and infiltrate into the center of the entire scaffold, serving as a clue to account for regulating cell alignment and differentiation physically. In vitro studies suggested that apatite accumulated dramatically on the channel wall in the lotus-type scaffold, probably promoting specific osteogenic differentiation of cells by the orientated channels, even in the absence of osteogenic factors. In vivo creation of critical bone defects (15-mm segments) was done in the radius of rabbits and implanted with the scaffold of different geometry to assess the structural parameters on the efficacy of new bone regeneration. The more extensive positive staining of BMP-2, more considerable amount of infiltrated capillary, more robust new bone formation, particularly the biomechanical strength of lotus-type scaffold group could reach the level of the control group without surgery, indicating that the lotus-type scaffold was more favorable for new bone tissue formation along tube-like channels. These results highlighted the potential of this biomimetic scaffold for cell and tissue infiltration and thus repair large bony defects.
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Affiliation(s)
- Limei Li
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, China
| | - Jidong Li
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, China
| | - Qin Zou
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, China
| | - Yi Zuo
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, China
| | - Lili Lin
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, China
| | - Bin Cai
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, China
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, China
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New Insights to the Crosstalk between Vascular and Bone Tissue in Chronic Kidney Disease-Mineral and Bone Disorder. Metabolites 2021; 11:metabo11120849. [PMID: 34940607 PMCID: PMC8708186 DOI: 10.3390/metabo11120849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 12/18/2022] Open
Abstract
Vasculature plays a key role in bone development and the maintenance of bone tissue throughout life. The two organ systems are not only linked in normal physiology, but also in pathophysiological conditions. The chronic kidney disease–mineral and bone disorder (CKD-MBD) is still the most serious complication to CKD, resulting in increased morbidity and mortality. Current treatment therapies aimed at the phosphate retention and parathyroid hormone disturbances fail to reduce the high cardiovascular mortality in CKD patients, underlining the importance of other factors in the complex syndrome. This review will focus on vascular disease and its interplay with bone disorders in CKD. It will present the very late data showing a direct effect of vascular calcification on bone metabolism, indicating a vascular-bone tissue crosstalk in CKD. The calcified vasculature not only suffers from the systemic effects of CKD but seems to be an active player in the CKD-MBD syndrome impairing bone metabolism and might be a novel target for treatment and prevention.
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Bone morphogenetic protein 9 enhances osteogenic and angiogenic responses of human amniotic mesenchymal stem cells cocultured with umbilical vein endothelial cells through the PI3K/AKT/m-TOR signaling pathway. Aging (Albany NY) 2021; 13:24829-24849. [PMID: 34837694 PMCID: PMC8660623 DOI: 10.18632/aging.203718] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 10/25/2021] [Indexed: 01/06/2023]
Abstract
Background: Neovascularization plays an essential part in bone fracture and defect healing, constructing tissue engineered bone that targets bone regeneration. Bone morphogenetic protein 9 (BMP9) is a regular indicator that potentiates osteogenic and angiogenic differentiation of MSCs. Objectives: To investigate the effects of BMP9 on osteogenesis and angiogenesis of human amniotic mesenchymal stem cells (hAMSCs) cocultured with human umbilical vein endothelial cells (HUVECs) and determine the possible underlying molecular mechanism. Results: The isolated hAMSCs expressed surface markers of MSCs. hAMSCs cocultured with HUVECs enhance osteogenic differentiation and upregulate the expression of angiogenic factors. BMP9 not only potentiates angiogenic signaling of hAMSCs cocultured with HUVECs also increases ectopic bone formation and subcutaneous vessel invasion. Mechanically, the coupling effect between osteogenesis and angiogenesis induced by BMP9 was activated by the BMP/Smad and PI3K/AKT/m-TOR signaling pathways. Conclusions: BMP9-enhanced osteoblastic and angiogenic differentiation in cocultivation with hAMSCs and HUVECs in vitro and in vivo also provide a chance to harness the BMP9-regulated coordinated effect between osteogenic and angiogenic pathways through BMP/Smad and PI3K/AKT/m-TOR signalings. Materials and Methods: The ALP and Alizarin Red S staining assay to determine the effects of osteoblastic differentiation. RT-qPCR and western blot was measured the expression of angiogenesis-related factors. Ectopic bone formation was established and retrieved bony masses were subjected to histochemical staining. The angiogenesis ability and vessel invasion were subsequently determined by immunofluorescence staining. Molecular mechanisms such as the BMP/Smad and PI3K/AKT/m-TOR signaling pathways were detected by ELISA and western blot analysis.
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12
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The Cellular Choreography of Osteoblast Angiotropism in Bone Development and Homeostasis. Int J Mol Sci 2021; 22:ijms22147253. [PMID: 34298886 PMCID: PMC8305002 DOI: 10.3390/ijms22147253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/23/2021] [Accepted: 06/29/2021] [Indexed: 12/11/2022] Open
Abstract
Interaction between endothelial cells and osteoblasts is essential for bone development and homeostasis. This process is mediated in large part by osteoblast angiotropism, the migration of osteoblasts alongside blood vessels, which is crucial for the homing of osteoblasts to sites of bone formation during embryogenesis and in mature bones during remodeling and repair. Specialized bone endothelial cells that form "type H" capillaries have emerged as key interaction partners of osteoblasts, regulating osteoblast differentiation and maturation and ensuring their migration towards newly forming trabecular bone areas. Recent revolutions in high-resolution imaging methodologies for bone as well as single cell and RNA sequencing technologies have enabled the identification of some of the signaling pathways and molecular interactions that underpin this regulatory relationship. Similarly, the intercellular cross talk between endothelial cells and entombed osteocytes that is essential for bone formation, repair, and maintenance are beginning to be uncovered. This is a relatively new area of research that has, until recently, been hampered by a lack of appropriate analysis tools. Now that these tools are available, greater understanding of the molecular relationships between these key cell types is expected to facilitate identification of new drug targets for diseases of bone formation and remodeling.
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13
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Kulanthaivel S, Agarwal T, Sharan Rathnam VS, Pal K, Banerjee I. Cobalt doped nano-hydroxyapatite incorporated gum tragacanth-alginate beads as angiogenic-osteogenic cell encapsulation system for mesenchymal stem cell based bone tissue engineering. Int J Biol Macromol 2021; 179:101-115. [PMID: 33621571 DOI: 10.1016/j.ijbiomac.2021.02.136] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/10/2021] [Accepted: 02/18/2021] [Indexed: 12/14/2022]
Abstract
Angiogenic-osteogenic cell encapsulation system is a technical need for human mesenchymal stem cell (hMSC)-based bone tissue engineering (BTE). Here, we have developed a highly efficient hMSC encapsulation system by incorporating bivalent cobalt doped nano-hydroxyapatite (HAN) and gum tragacanth (GT) as angiogenic-osteogenic components into the calcium alginate (CA) beads. Physico-chemical characterizations revealed that the swelling and degradation of HAN incorporated CA-GT beads (GT-HAN) were 1.34 folds and 2 folds higher than calcium alginate (CA) beads. Furthermore, the diffusion coefficient of solute molecule was found 2.5-fold higher in GT-HAN with respect to CA bead. It is observed that GT-HAN supports the long-term viability of encapsulated hMSC and causes 50% less production of reactive oxygen species (ROS) in comparison to CA beads. The expression of osteogenic differentiation markers was found 1.5-2.5 folds higher in the case of GT-HAN in comparison to CA. A similar trend was observed for hypoxia inducible factor 1 alpha (HIF-1α) and vascular endothelial growth factor (VEGF). The soluble secretome from hMSC encapsulated in the GT-HAN induced proliferation of endothelial cells and supported tube formation (2.5-fold higher than CA beads). These results corroborated that GT-HAN could be used as an angiogenic-osteogenic cell encapsulation matrix for hMSC encapsulation and BTE application.
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Affiliation(s)
- Senthilguru Kulanthaivel
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Tarun Agarwal
- Department of Biotechnology, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - V S Sharan Rathnam
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Kunal Pal
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Indranil Banerjee
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Rajasthan 342037, India.
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14
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Chen M, Li Y, Huang X, Gu Y, Li S, Yin P, Zhang L, Tang P. Skeleton-vasculature chain reaction: a novel insight into the mystery of homeostasis. Bone Res 2021; 9:21. [PMID: 33753717 PMCID: PMC7985324 DOI: 10.1038/s41413-021-00138-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 11/18/2020] [Accepted: 12/16/2020] [Indexed: 02/01/2023] Open
Abstract
Angiogenesis and osteogenesis are coupled. However, the cellular and molecular regulation of these processes remains to be further investigated. Both tissues have recently been recognized as endocrine organs, which has stimulated research interest in the screening and functional identification of novel paracrine factors from both tissues. This review aims to elaborate on the novelty and significance of endocrine regulatory loops between bone and the vasculature. In addition, research progress related to the bone vasculature, vessel-related skeletal diseases, pathological conditions, and angiogenesis-targeted therapeutic strategies are also summarized. With respect to future perspectives, new techniques such as single-cell sequencing, which can be used to show the cellular diversity and plasticity of both tissues, are facilitating progress in this field. Moreover, extracellular vesicle-mediated nuclear acid communication deserves further investigation. In conclusion, a deeper understanding of the cellular and molecular regulation of angiogenesis and osteogenesis coupling may offer an opportunity to identify new therapeutic targets.
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Affiliation(s)
- Ming Chen
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Yi Li
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Xiang Huang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Ya Gu
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Shang Li
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Pengbin Yin
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China.
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China.
| | - Licheng Zhang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China.
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China.
| | - Peifu Tang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China.
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China.
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15
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Chen L, Zhang RY, Xie J, Yang JY, Fang KH, Hong CX, Yang RB, Bsoul N, Yang L. STAT3 activation by catalpol promotes osteogenesis-angiogenesis coupling, thus accelerating osteoporotic bone repair. Stem Cell Res Ther 2021; 12:108. [PMID: 33541442 PMCID: PMC7863540 DOI: 10.1186/s13287-021-02178-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/20/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Bone fracture repair has gained a lot of attention due to the high incidence of delayed union or even nonunion especially in osteoporotic patients, resulting in a dreadful impact on the quality of life. However, current therapies involve the costly expense and hence become unaffordable strategies for fracture recovery. Herein, developing new strategies for better bone repair is essential and urgent. Catalpol treatment has been reported to attenuate bone loss and promote bone formation. However, the mechanisms underlying its effects remain unraveled. METHODS Rat bone marrow mesenchymal stem cells (BMSCs) were isolated from rat femurs. BMSC osteogenic ability was assessed using ALP and ARS staining, immunofluorescence, and western blot analysis. BMSC-mediated angiogenic potentials were determined using the western blot analysis, ELISA testing, scratch wound assay, transwell migration assay, and tube formation assay. To investigate the molecular mechanism, the lentivirus transfection was used. Ovariectomized and sham-operated rats with calvaria defect were analyzed using micro-CT, H&E staining, Masson's trichrome staining, microfil perfusion, sequential fluorescent labeling, and immunohistochemistry assessment after administrated with/without catalpol. RESULTS Our results manifested that catalpol enhanced BMSC osteoblastic differentiation and promoted BMSC-mediated angiogenesis in vitro. More importantly, this was conducted via the JAK2/STAT3 pathway, as knockdown of STAT3 partially abolished beneficial effects in BMSCs. Besides, catalpol administration facilitated bone regeneration as well as vessel formation in an OVX-induced osteoporosis calvarial defect rat model. CONCLUSIONS The data above showed that catalpol could promote osteogenic ability of BMSC and BMSC-dependent angiogenesis through activation of the JAK2/STAT3 axis, suggesting it may be an ideal therapeutic agent for clinical medication of osteoporotic bone fracture.
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Affiliation(s)
- Liang Chen
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, 325000, China
| | - Ri-Yan Zhang
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, 325000, China
| | - Jun Xie
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, 325000, China
| | - Jia-Yi Yang
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Kang-Hao Fang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, 325000, China
| | - Chen-Xuan Hong
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, 325000, China
| | - Rong-Bo Yang
- Medical College, Zhejiang Jiaxing College, Jiaxing, 314000, China
| | - Najeeb Bsoul
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Lei Yang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China. .,Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, 325000, China.
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16
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Wu X, Tang Z, Wu K, Bai Y, Lin X, Yang H, Yang Q, Wang Z, Ni X, Liu H, Yang L. Strontium-calcium phosphate hybrid cement with enhanced osteogenic and angiogenic properties for vascularised bone regeneration. J Mater Chem B 2021; 9:5982-5997. [PMID: 34139000 DOI: 10.1039/d1tb00439e] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Vascularized bone tissue engineering is regarded as one of the optimal treatment options for large bone defects. The lack of angiogenic properties and unsatisfactory physicochemical performance restricts calcium phosphate cement (CPC) from application in vascularized bone tissue engineering. Our previous studies have developed a starch and BaSO4 incorporated calcium phosphate hybrid cement (CPHC) with improved mechanical strength and handling properties. However, the bioactivity-especially the angiogenic ability-is still absent and requires further improvement. Herein, based on the reported CPHC and the osteogenic and angiogenic properties of strontium (Sr) ions, a strontium-enhanced calcium phosphate hybrid cement (Sr-CPHC) was developed to improve both biological and physicochemical properties of CPC. Compared to CPC, the initial setting time of Sr-CPHC was prolonged from 2.2 min to 20.7 min. The compressive strength of Sr-CPHC improved from 11.21 MPa to 45.52 MPa compared with CPC as well. Sr-CPHC was biocompatible and showed promotion of alkaline phosphatase (ALP) activity, calcium nodule formation and osteogenic relative gene expression, suggesting high osteogenic-inductivity. Sr-CPHC also facilitated the migration and tube formation of human umbilical vein endothelial cells (HUVECs) in vitro and up-regulated the expression of the vascular endothelial growth factor (VEGF) and Angiopoietin-1 (Ang-1). In vivo evaluation showed marked new bone formation in a rat calvarial defect model with Sr-CPHC implanted. Sr-CPHC also exhibited enhancement of neovascularization in subcutaneous connective tissue in a rat subcutaneous implantation model. Thus, the Sr-CPHC with the dual effects of osteogenesis and angiogenesis shows great potential for clinical applications such as the repair of ischemic osteonecrosis and critical-size bone defects.
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Affiliation(s)
- Xiexing Wu
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Ziniu Tang
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Kang Wu
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Yanjie Bai
- School of Public Health, Medical College, Soochow University, Suzhou 215006, P. R. China
| | - Xiao Lin
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Huilin Yang
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Qiang Yang
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, P. R. China
| | - Zheng Wang
- Department of Orthopedics, PLA General Hospital, Beijing 100853, P. R. China
| | - Xinye Ni
- Second People's Hospital of Changzhou, Nanjing Medical University, No. 68 Gehu Road, Changzhou 213003, P. R. China.
| | - Huiling Liu
- Institute of Orthopedics, Medical College, Soochow University, Suzhou 215006, P. R. China.
| | - Lei Yang
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China and Center for Health Science and Engineering (CHSE), School of Materials Science and Engineering, Hebei University of Technology, No. 8 Guangrong Road, Tianjin 300130, P. R. China.
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17
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Xu C, Liu H, He Y, Li Y, He X. Endothelial progenitor cells promote osteogenic differentiation in co-cultured with mesenchymal stem cells via the MAPK-dependent pathway. Stem Cell Res Ther 2020; 11:537. [PMID: 33308309 PMCID: PMC7731475 DOI: 10.1186/s13287-020-02056-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/27/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The role of bone tissue engineering is to regenerate tissue using biomaterials and stem cell-based approaches. Combination of two or more cell types is one of the strategies to promote bone formation. Endothelial progenitor cells (EPCs) may enhance the osteogenic properties of mesenchymal stem cells (MSCs) and promote bone healing; this study aimed to investigate the possible mechanisms of EPCs on promoting osteogenic differentiation of MSCs. METHODS MSCs and EPCs were isolated and co-cultured in Transwell chambers, the effects of EPCs on the regulation of MSC biological properties were investigated. Real-time PCR array, and western blotting were performed to explore possible signaling pathways involved in osteogenesis. The expression of osteogenesis markers and calcium nodule formation was quantified by qRT-PCR, western blotting, and Alizarin Red staining. RESULTS Results showed that MSCs exhibited greater alkaline phosphatase (ALP) activity and increased calcium mineral deposition significantly when co-cultured with EPCs. The mitogen-activated protein kinase (MAPK) signaling pathway was involved in this process. p38 gene expression and p38 protein phosphorylation levels showed significant upregulation in co-cultured MSCs. Silencing expression of p38 in co-cultured MSCs reduced osteogenic gene expression, protein synthesis, ALP activity, and calcium nodule formation. CONCLUSIONS These data suggest paracrine signaling from EPCs influences the biological function and promotes MSCs osteogenic differentiation. Activation of the p38MAPK pathway may be the key to enhancing MSCs osteogenic differentiation via indirect interactions with EPCs.
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Affiliation(s)
- Chu Xu
- Department of Stomatology, The 4th Affiliated Hospital of China Medical University, No.4 Chongshan Dong Road, Shenyang, 110032, Liaoning, China.,Department of General Dentistry, School of Stomatology, China Medical University, Shenyang, 110001, Liaoning, China
| | - Haijie Liu
- Department of Stomatology, The 4th Affiliated Hospital of China Medical University, No.4 Chongshan Dong Road, Shenyang, 110032, Liaoning, China
| | - Yuanjia He
- Department of Stomatology, The 4th Affiliated Hospital of China Medical University, No.4 Chongshan Dong Road, Shenyang, 110032, Liaoning, China
| | - Yuanqing Li
- Department of Stomatology, The 4th Affiliated Hospital of China Medical University, No.4 Chongshan Dong Road, Shenyang, 110032, Liaoning, China
| | - Xiaoning He
- Department of Stomatology, The 4th Affiliated Hospital of China Medical University, No.4 Chongshan Dong Road, Shenyang, 110032, Liaoning, China.
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18
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Son JW, Choi SH, Jang JH, Koh JT, Oh WM, Hwang YC, Lee BN. Irisin promotes odontogenic differentiation and angiogenic potential in human dental pulp cells. Int Endod J 2020; 54:399-412. [PMID: 33089893 DOI: 10.1111/iej.13435] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 12/31/2022]
Abstract
AIM To determine whether irisin, a newly discovered myokine that links exercise-induced and metabolic homeostasis, is able to promote odontogenic differentiation and angiogenesis in human dental pulp cells (HDPCs). METHODOLOGY Cell viability in the presence of irisin was measured. Real-time PCR and Western blot analysis were performed to evaluate the expression levels of irisin, odontogenic and angiogenic markers. The involvement of mitogen-activated protein kinase (MAPK) and the protein kinase B (Akt) signalling pathway was evaluated by Western blot. To evaluate mineralization nodule formation, alkaline phosphatase (ALP) staining and alizarin red S staining were performed. Scratch wound assays were performed to evaluate the effects of irisin on cell migration. The data were analysed using one-way analysis of variance (anova) followed by Tukey post hoc test and Student's t-test. Statistical significance was considered at P < 0.05. RESULTS Irisin significantly promoted odontogenic differentiation as evidenced by formation of mineralized nodules, induction of ALP activity and upregulation of odontogenic and angiogenic markers (P < 0.05). Scratch wound assays revealed that irisin significantly increased migration of HDPCs (P < 0.05). Phosphorylation of both MAPK and Akt was increased by irisin. MAPK and Akt inhibitors inhibited mineralization, cell migration and the increased expression of odontogenic and angiogenic markers. CONCLUSIONS Irisin promoted odontogenic differentiation and mineralization and has the potential for angiogenesis through activation of the MAPK and Akt signalling pathways in HDPCs.
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Affiliation(s)
- J W Son
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - S H Choi
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - J H Jang
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea
| | - J T Koh
- Department of Pharmacology and Dental Therapeutics, Hard-tissue Biointerface Research Center, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - W M Oh
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - Y C Hwang
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - B N Lee
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
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19
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Assessment of the Release of Vascular Endothelial Growth Factor from 3D-Printed Poly-ε-Caprolactone/Hydroxyapatite/Calcium Sulfate Scaffold with Enhanced Osteogenic Capacity. Polymers (Basel) 2020; 12:polym12071455. [PMID: 32610580 PMCID: PMC7408109 DOI: 10.3390/polym12071455] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/20/2020] [Accepted: 06/23/2020] [Indexed: 12/11/2022] Open
Abstract
Vascular endothelial growth factor (VEGF) is one of the most crucial growth factors and an assistant for the adjustment of bone regeneration. In this study, a 3D scaffold is fabricated using the method of fused deposition modeling. Such a fabricated method allows us to fabricate scaffolds with consistent pore sizes, which could promote cellular ingrowth into scaffolds. Therefore, we drafted a plan to accelerate bone regeneration via VEGF released from the hydroxyapatite/calcium sulfate (HACS) scaffold. Herein, HACS will gradually degrade and provide a suitable environment for cell growth and differentiation. In addition, HACS scaffolds have higher mechanical properties and drug release compared with HA scaffolds. The drug release profile of the VEGF-loaded scaffolds showed that VEGF could be loaded and released in a stable manner. Furthermore, initial results showed that VEGF-loaded scaffolds could significantly enhance the proliferation of human mesenchymal stem cells (hMSCs) and human umbilical vein endothelial cells (HUVEC). In addition, angiogenic- and osteogenic-related proteins were substantially increased in the HACS/VEGF group. Moreover, in vivo results revealed that HACS/VEGF improved the regeneration of the rabbit’s femur bone defect, and VEGF loading improved bone tissue regeneration and remineralization after implantation for 8 weeks. All these results strongly imply that the strategy of VEGF loading onto scaffolds could be a potential candidate for future bone tissue engineering.
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20
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Sharma A, Goring A, Staines KA, Emery RJ, Pitsillides AA, Oreffo RO, Mahajan S, Clarkin CE. Raman spectroscopy links differentiating osteoblast matrix signatures to pro-angiogenic potential. Matrix Biol Plus 2020; 5:100018. [PMID: 33543015 PMCID: PMC7852201 DOI: 10.1016/j.mbplus.2019.100018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 08/21/2019] [Accepted: 10/09/2019] [Indexed: 01/25/2023] Open
Abstract
Mineralization of bone is achieved by the sequential maturation of the immature amorphous calcium phase to mature hydroxyapatite (HA) and is central in the process of bone development and repair. To study normal and dysregulated mineralization in vitro, substrates are often coated with poly-l-lysine (PLL) which facilitates cell attachment. This study has used Raman spectroscopy to investigate the effect of PLL coating on osteoblast (OB) matrix composition during differentiation, with a focus on collagen specific proline and hydroxyproline and precursors of HA. Deconvolution analysis of murine derived long bone OB Raman spectra revealed collagen species were 4.01-fold higher in OBs grown on PLL. Further, an increase of 1.91-fold in immature mineral species (amorphous calcium phosphate) was coupled with a 9.32-fold reduction in mature mineral species (carbonated apatite) on PLL versus controls. These unique low mineral signatures identified in OBs were linked with reduced alkaline phosphatase enzymatic activity, reduced Alizarin Red staining and altered osteogenic gene expression. The promotion of immature mineral species and restriction of mature mineral species of OB grown on PLL were linked to increased cell viability and pro-angiogenic vascular endothelial growth factor (VEGF) production. These results demonstrate the utility of Raman spectroscopy to link distinct matrix signatures with OB maturation and VEGF release. Importantly, Raman spectroscopy could provide a label-free approach to clinically assess the angiogenic potential of bone during fracture repair or degenerative bone loss.
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Key Words
- ACP, amorphous calcium phosphate
- ALP, tissue non-specific alkaline phosphatase
- CAP, carbonated apatite
- CCEC, collagenase-collagenase-EDTA-collagenase
- ECM, extracellular matrix
- HA, hydroxyapatite
- HBSS, Hank's balanced salt solution
- MV, matrix vesicles
- OB, osteoblast
- OCP, octacalcium phosphate
- Osteoblast mineralization
- PCA, principle component analysis
- PLL, poly-l-lysine
- Poly-l-lysine
- RT-qPCR, reverse transcription-quantiative PCR
- Raman spectroscopy
- VEGF
- VEGF, vascular endothelial growth factor
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Affiliation(s)
- Aikta Sharma
- School of Biological Sciences, Highfield Campus, University of Southampton, Southampton, SO17 1BJ, United Kingdom of Great Britain and Northern Ireland
| | - Alice Goring
- School of Biological Sciences, Highfield Campus, University of Southampton, Southampton, SO17 1BJ, United Kingdom of Great Britain and Northern Ireland
| | - Katherine A. Staines
- School of Applied Sciences, Sighthill Campus, Edinburgh Napier University, Edinburgh, EH11 4BN, United Kingdom of Great Britain and Northern Ireland
| | - Roger J.H. Emery
- Department of Surgery and Cancer, Faculty of Medicine, St Mary's Campus, Imperial College London, London, W2 1PG, United Kingdom of Great Britain and Northern Ireland
| | - Andrew A. Pitsillides
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, NW1 0TU, United Kingdom of Great Britain and Northern Ireland
| | - Richard O.C. Oreffo
- Centre for Human Development, Stem Cell and Regeneration, Institute of Developmental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, SO16 6YD, United Kingdom of Great Britain and Northern Ireland
| | - Sumeet Mahajan
- School of Chemistry and Institute for Life Sciences, Highfield Campus, University of Southampton, Southampton, SO17 1BJ, United Kingdom of Great Britain and Northern Ireland
| | - Claire E. Clarkin
- School of Biological Sciences, Highfield Campus, University of Southampton, Southampton, SO17 1BJ, United Kingdom of Great Britain and Northern Ireland
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21
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Naudot M, Barre A, Caula A, Sevestre H, Dakpé S, Mueller AA, Devauchelle B, Testelin S, Marolleau JP, Le Ricousse S. Co-transplantation of Wharton's jelly mesenchymal stem cell-derived osteoblasts with differentiated endothelial cells does not stimulate blood vessel and osteoid formation in nude mice models. J Tissue Eng Regen Med 2020; 14:257-271. [PMID: 31713308 DOI: 10.1002/term.2989] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 09/23/2019] [Accepted: 10/11/2019] [Indexed: 12/30/2022]
Abstract
A major challenge in bone tissue engineering is the lack of post-implantation vascular growth into biomaterials. In the skeletal system, blood vessel growth appears to be coupled to osteogenesis-suggesting the existence of molecular crosstalk between endothelial cells (ECs) and osteoblastic cells. The present study (performed in two murine ectopic models) was designed to determine whether co-transplantation of human Wharton's jelly mesenchymal stem cell-derived osteoblasts (WJMSC-OBs) and human differentiated ECs enhances bone regeneration and stimulates angiogenesis, relative to the seeding of WJMSC-OBs alone. Human WJMSC-OBs and human ECs were loaded into a silicate-substituted calcium phosphate (SiCaP) scaffold and then ectopically implanted at subcutaneous or intramuscular sites in nude mice. At both subcutaneous and intramuscular implantation sites, we observed ectopic bone formation and osteoids composed of host cells when WJMSC-OBs were seeded into the scaffold. However, the addition of ECs was associated with a lower level of osteogenesis, and we did not observe stimulation of blood vessel ingrowth. in vitro studies demonstrated that WJMSC-OBs lost their ability to secrete vascular endothelial growth factor and stromal cell-derived factor 1-including when ECs were present. In these two murine ectopic models, our cell-matrix environment combination did not seem to be optimal for inducing vascularized bone reconstruction.
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Affiliation(s)
- Marie Naudot
- EA 7516, CHIMERE, University of Picardie Jules Verne, Amiens, France
| | - Anaïs Barre
- EA 7516, CHIMERE, University of Picardie Jules Verne, Amiens, France
| | - Alexandre Caula
- Service de chirurgie maxillo-faciale, Centre Hospitalier Universitaire Amiens Picardie, Amiens, France
| | - Henri Sevestre
- Service d'anatomie et de cytology pathologique, Centre Hospitalier Universitaire Amiens Picardie, Amiens, France
| | - Stéphanie Dakpé
- EA 7516, CHIMERE, University of Picardie Jules Verne, Amiens, France.,Service de chirurgie maxillo-faciale, Centre Hospitalier Universitaire Amiens Picardie, Amiens, France.,Institut Faire Faces, Amiens, France
| | - Andreas Albert Mueller
- Department of Cranio-Maxillofacial Surgery, University and University Hospital Basel, Basel, Switzerland.,Department of Biomedical Engineering, Regenerative Medicine and Oral Health Technologies, University of Basel, Allschwil, Switzerland
| | - Bernard Devauchelle
- EA 7516, CHIMERE, University of Picardie Jules Verne, Amiens, France.,Service de chirurgie maxillo-faciale, Centre Hospitalier Universitaire Amiens Picardie, Amiens, France.,Institut Faire Faces, Amiens, France
| | - Sylvie Testelin
- EA 7516, CHIMERE, University of Picardie Jules Verne, Amiens, France.,Service de chirurgie maxillo-faciale, Centre Hospitalier Universitaire Amiens Picardie, Amiens, France.,Institut Faire Faces, Amiens, France
| | - Jean Pierre Marolleau
- Service d'Hématologie Clinique, Centre Hospitalier Universitaire Amiens Picardie, Amiens, France.,EA 4666, HEMATIM, University of Picardie Jules Verne, Amiens, France
| | - Sophie Le Ricousse
- EA 7516, CHIMERE, University of Picardie Jules Verne, Amiens, France.,Institut Faire Faces, Amiens, France
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22
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Zhou Y, Liu C, He J, Dong L, Zhu H, Zhang B, Feng X, Weng W, Cheng K, Yu M, Wang H. KLF2 + stemness maintains human mesenchymal stem cells in bone regeneration. Stem Cells 2019; 38:395-409. [PMID: 31721356 DOI: 10.1002/stem.3120] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 09/01/2019] [Indexed: 01/04/2023]
Abstract
Mesenchymal stem cells (MSCs), which are undifferentiated stem cells with the property of stemness and the potential to differentiate into multiple lineages, including osteoblasts, have attracted a great deal of attention in bone tissue engineering. Consistent with the heterogeneity of MSCs, various surface markers have been used. However, it is still unclear which markers of MSCs are best for cell amplification in vitro and later bone regeneration in vivo. Krüppel-like Factor 2 (KLF2) is an important indicator of the stemness of human MSCs (hMSCs) and as early vascularization is also critical for bone regeneration, we used KLF2 as a novel in vitro marker for MSCs and investigated the angiogenesis and osteogenesis between KLF2+ MSCs and endothelial cells (ECs). We found a synergistic interaction between hMSCs and human umbilical vein ECs (HUVECs) in that KLF2+ stemness-maintained hMSCs initially promoted the angiogenesis of HUVECs, which in turn more efficiently stimulated the osteogenesis of hMSCs. In fact, KLF2+ hMSCs secreted angiogenic factors initially, with some of the cells then differentiating into pericytes through the PDGF-BB/PDGFR-β signaling pathway, which improved blood vessel formation. The matured HUVECs in turn synergistically enhanced the osteogenesis of KLF2+ hMSCs through upregulated vascular endothelial growth factor. A three-dimensional coculture model using cell-laden gelatin methacrylate (GelMA) hydrogel further confirmed these results. This study provides insight into the stemness-directed synergistic interaction between hMSCs and HUVECs, and our results will have a profound impact on further strategies involving the application of KLF2+ hMSC/HUVEC-laden GelMA hydrogel in vascular network bioengineering and bone regeneration.
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Affiliation(s)
- Ying Zhou
- The Affiliated Stomatologic Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Chao Liu
- The Affiliated Stomatologic Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Jianxiang He
- The Affiliated Stomatologic Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Lingqing Dong
- The Affiliated Stomatologic Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering, Zhejiang University, Hangzhou, People's Republic of China
| | - Huiyong Zhu
- The First Affiliated Hospital of Medical College, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Bin Zhang
- The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou, People's Republic of China
| | - Xiaoxia Feng
- The Affiliated Stomatologic Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Wenjian Weng
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering, Zhejiang University, Hangzhou, People's Republic of China
| | - Kui Cheng
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering, Zhejiang University, Hangzhou, People's Republic of China
| | - Mengfei Yu
- The Affiliated Stomatologic Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
- The First Affiliated Hospital of Medical College, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Huiming Wang
- The Affiliated Stomatologic Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
- The First Affiliated Hospital of Medical College, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
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23
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Goring A, Sharma A, Javaheri B, Smith RC, Kanczler JM, Boyde A, Hesse E, Mahajan S, Olsen BR, Pitsillides AA, Schneider P, Oreffo RO, Clarkin CE. Regulation of the Bone Vascular Network is Sexually Dimorphic. J Bone Miner Res 2019; 34:2117-2132. [PMID: 31269275 PMCID: PMC6899569 DOI: 10.1002/jbmr.3825] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/11/2019] [Accepted: 06/24/2019] [Indexed: 12/24/2022]
Abstract
Osteoblast (OB) lineage cells are an important source of vascular endothelial growth factor (VEGF), which is critical for bone growth and repair. During bone development, pubertal differences in males and females exist, but little is known about whether VEGF signaling contributes to skeletal sexual dimorphism. We have found that in mice, conditional disruption of VEGF in osteocalcin-expressing cells (OcnVEGFKO) exerts a divergent influence on morphological, cellular, and whole bone properties between sexes. Furthermore, we describe an underlying sexual divergence in VEGF signaling in OB cultures in vitro independent of circulating sex hormones. High-resolution synchrotron computed tomography and backscattered scanning electron microscopy revealed, in males, extensive unmineralized osteoid encasing enlarged blood vessel canals and osteocyte lacunae in cortical bone after VEGF deletion, which contributed to increased porosity. VEGF was deleted in male and female long bone-derived OBs (OBVEGKO) in vitro and Raman spectroscopic analyses of mineral and matrix repertoires highlighted differences between male and female OBVEGFKO cells, with increased immature phosphate species prevalent in male OBVEGFKO cultures versus wild type (WT). Further sexual dimorphism was observed in bone marrow endothelial cell gene expression in vitro after VEGF deletion and in sclerostin protein expression, which was increased in male OcnVEGFKO bones versus WT. The impact of altered OB matrix composition after VEGF deletion on whole bone geometry was assessed between sexes, although significant differences between OcnVEGFKO and WT were identified only in females. Our results suggest that bone-derived VEGF regulates matrix mineralization and vascularization distinctly in males and females, which results in divergent physical bone traits.
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Affiliation(s)
- Alice Goring
- School of Biological Sciences, University of Southampton, Southampton, UK
| | - Aikta Sharma
- School of Biological Sciences, University of Southampton, Southampton, UK
| | - Behzad Javaheri
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, London, UK
| | - Rosanna Cg Smith
- Bone and Joint Research Group, Centre for Human Development, Stem Cell and Regeneration, Human Development and Health, Institute of Developmental Sciences, University of Southampton, Southampton, UK
| | - Janos M Kanczler
- Bone and Joint Research Group, Centre for Human Development, Stem Cell and Regeneration, Human Development and Health, Institute of Developmental Sciences, University of Southampton, Southampton, UK
| | - Alan Boyde
- Dental Physical Sciences, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Eric Hesse
- Institute of Molecular Musculoskeletal Research, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
| | - Sumeet Mahajan
- Institute for Life Sciences and Department of Chemistry, University of Southampton, Southampton, UK
| | - Bjorn R Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - Andrew A Pitsillides
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, London, UK
| | - Philipp Schneider
- Bioengineering Research Group, University of Southampton, Southampton, UK
| | - Richard Oc Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cell and Regeneration, Human Development and Health, Institute of Developmental Sciences, University of Southampton, Southampton, UK
| | - Claire E Clarkin
- School of Biological Sciences, University of Southampton, Southampton, UK
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24
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Wang Z, Sun J, Li Y, Chen C, Xu Y, Zang X, Li L, Meng K. Experimental study of the synergistic effect and network regulation mechanisms of an applied combination of BMP-2, VEGF, and TGF-β1 on osteogenic differentiation. J Cell Biochem 2019; 121:2394-2405. [PMID: 31646676 DOI: 10.1002/jcb.29462] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 10/10/2019] [Indexed: 02/03/2023]
Abstract
The study aimed to explore the osteogenic effect induced by the combined use of bone morphogenetic protein-2 (BMP-2), vascular endothelial growth factor (VEGF), and transforming growth factor-β1 (TGF-β1), attain the best combination for osteogenic quality and efficiency, and explore the network regulation mechanisms of induced osteogenesis. MC3T3-E1 cells were cultured in vitro, and BMP-2, VEGF, and TGF β1 were added to osteogenic induction mediums in different combinations to conduct experiments. At 7 and 14 days, the alkaline phosphatase (ALP) and Alizarin Red S (ARS) staining of the applied BMP-2 and VEGF combination were deeper and the quantitative analysis were higher than those of the other groups. After optimizing the time-effect relationship of the combined application, with BMP-2, VEGF, and TGF-β1 adding in the early stage and BMP-2 and VEGF adding in the late, the ALP and ARS staining of these groups were deeper and the quantitative analyses were meaningfully higher than the BMP-2 and VEGF combination group at 7 and 14 days. The expression of the RUNX2 gene and the Smad1 signaling pathway in the optimized combination group was also significantly higher. The results demonstrate that the combination of BMP-2, VEGF, and TGF-β1 applied according to the time-effect relationship can significantly promote osteogenic differentiation mainly through the classical BMP-receptor-Smad signal pathway.
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Affiliation(s)
- Zhihao Wang
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Jian Sun
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China.,Dental Digital Medicine & 3D Printing Engineering Laboratory of Qingdao, Qingdao, Shandong, China.,Shandong Provincial Key Laboratory of Digital Medicine and Computer-assisted Surgery, Qingdao, Shandong, China
| | - Yali Li
- Department of Operating Room, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Chen Chen
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yaoxiang Xu
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Xiaolong Zang
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Li Li
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Kun Meng
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China
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25
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Inhibiting expression of Cxcl9 promotes angiogenesis in MSCs-HUVECs co-culture. Arch Biochem Biophys 2019; 675:108108. [PMID: 31550444 DOI: 10.1016/j.abb.2019.108108] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/18/2019] [Accepted: 09/15/2019] [Indexed: 12/17/2022]
Abstract
The insufficient vascularization is a major challenge in bone tissue engineering, leading to partial necrosis of the implant. Pre-vascularization is a promising way via in vitro cells co-culture strategies using osteogenic cells and vasculogenic cells, and the cross-talk of cells is essential. In the present study, the effect of rat bone-marrow derived mesenchymal stem cells (BMSCs) on angiogenic capability of human umbilical vein endothelial cells (HUVECs) in growth medium (GM) and osteogenic induction medium (OIM) was investigated. It was demonstrated that cells co-cultured in OIM showed high efficiency in osteogenesis but failed to form capillary-like structure while the results of co-culture in GM were the opposite. By comparing the angiogenic capacity of co-cultures under GM and OIM, chemokine (C-X-C motif) ligand 9 (Cxcl9), secreted by BMSCs in OIM, was identified to be an angiostatic factor to counter-regulate vascular endothelial growth factor (VEGF) and prevent its binding to HUVECs, which abrogated angiogenesis of MSCs-ECs co-culture. Moreover, Cxcl9 was proved to suppress the osteogenic differentiation of BMSCs monoculture. The molecular mechanism of Cxcl9 activation in BMSCs involved mTOR/STAT1 signaling pathway. Therefore, blocking this signaling pathway via rapamycin addition resulted in the inhibition of Cxcl9 and improvement of osteogenic differentiation and angiogenic capacity of co-culture in OIM. These results reveal that Cxcl9 is a negative modulator of angiogenesis and osteogenesis, and its inhibition could promote pre-vascularization of bone tissue engineering.
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26
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Xu J, Deng Y, Yu CY, Gao ZM, Yang XR, Zhang Q, Zhang L. Efficacy of wIRA in the treatment of sacroiliitis in male patients with ankylosing spondylitis and its effect on serum VEGF levels. J Orthop Surg Res 2019; 14:313. [PMID: 31533751 PMCID: PMC6749671 DOI: 10.1186/s13018-019-1322-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 08/16/2019] [Indexed: 12/04/2022] Open
Abstract
Background This study aimed to assess the efficacy of water-filtered infrared A (wIRA) in sacroiliitis in male patients with ankylosing spondylitis (AS) and the effect of wIRA therapy on serum vascular endothelial growth factor (VEGF). Methods One hundred twenty male AS patients with active sacroiliitis were randomly divided into wIRA group and control group. wIRA treatment was performed twice daily for 5 consecutive days with 24-h interval before switching the treatment (crossover design). Bath ankylosing spondylitis disease activity index (BASDAI) scores, pain visual analogue scale (VAS), and morning stiffness VAS were recorded prior to and after each treatment period. Additionally, C-reactive protein (CRP), serum VEGF, and resistance index (RI) of sacroiliac joints detected by ultrasonography were recorded at baseline and after the first and second treatment period, respectively. The efficacy was examined by using repeated measures analysis of variance (ANOVA). Results BASDAI, pain VAS, and morning stiffness VAS scores decreased significantly (P < 0.001) after wIRA treatment and no-wIRA treatment (control group), and the difference between the two groups was significant (P < 0.001). CRP declined and RI increased during the wIRA treatment as compared with the no-wIRA treatment (P < 0.001). The increase in RI was associated with improvement of pain VAS scores (P = 0.018), while serum VEGF was unaffected by the treatment. Conclusions wIRA treatment achieved symptom and pain relief for AS patients with active sacroiliitis. wIRA treatment also improved RI revealed by ultrasonography, and this effect was associated with improved pain VAS scores.
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Affiliation(s)
- Jian Xu
- Department of Rheumatology and Immunology, Shengli Oilfield Central Hospital, No. 31 of Jinan Road, Dongying, 257034, Shandong, China
| | - Yao Deng
- Department of Rheumatology and Immunology, Shengli Oilfield Central Hospital, No. 31 of Jinan Road, Dongying, 257034, Shandong, China
| | - Chun-Yan Yu
- Department of Rheumatology and Immunology, Shengli Oilfield Central Hospital, No. 31 of Jinan Road, Dongying, 257034, Shandong, China
| | - Zhao-Meng Gao
- Department of Rheumatology and Immunology, Shengli Oilfield Central Hospital, No. 31 of Jinan Road, Dongying, 257034, Shandong, China
| | - Xi-Rui Yang
- Department of Rheumatology and Immunology, Shengli Oilfield Central Hospital, No. 31 of Jinan Road, Dongying, 257034, Shandong, China
| | - Qi Zhang
- Department of Rheumatology and Immunology, Shengli Oilfield Central Hospital, No. 31 of Jinan Road, Dongying, 257034, Shandong, China
| | - Lei Zhang
- Department of Rheumatology and Immunology, Shengli Oilfield Central Hospital, No. 31 of Jinan Road, Dongying, 257034, Shandong, China.
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27
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Inomata K, Honda M. Co-Culture of Osteoblasts and Endothelial Cells on a Microfiber Scaffold to Construct Bone-Like Tissue with Vascular Networks. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2869. [PMID: 31491993 PMCID: PMC6765976 DOI: 10.3390/ma12182869] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/04/2019] [Accepted: 09/04/2019] [Indexed: 01/01/2023]
Abstract
Bone is based on an elaborate system of mineralization and vascularization. In hard tissue engineering, diverse biomaterials compatible with osteogenesis and angiogenesis have been developed. In the present study, to examine the processes of osteogenesis and angiogenesis, osteoblast-like MG-63 cells were co-cultured with human umbilical vein endothelial cells (HUVECs) on a microfiber scaffold. The percentage of adherent cells on the scaffold was more than 60% compared to the culture plate, regardless of the cell type and culture conditions. Cell viability under both monoculture and co-culture conditions was constantly sustained. During the culture periods, the cells were spread along the fibers and extended pseudopodium-like structures on the microfibers three-dimensionally. Compared to the monoculture results, the alkaline phosphatase activity of the co-culture increased 3-6 fold, whereas the vascular endothelial cell growth factor secretion significantly decreased. Immunofluorescent staining of CD31 showed that HUVECs were well spread along the fibers and formed microcapillary-structures. These results suggest that the activation of HUVECs by co-culture with MG-63 could enhance osteoblastic differentiation in the microfiber scaffold, which mimics the microenvironment of the extracellular matrix. This approach can be effective for the construction of tissue-engineered bone with vascular networks.
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Affiliation(s)
- Kouki Inomata
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan.
| | - Michiyo Honda
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan.
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28
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Li L, Li J, Zou Q, Zuo Y, Cai B, Li Y. Enhanced bone tissue regeneration of a biomimetic cellular scaffold with co-cultured MSCs-derived osteogenic and angiogenic cells. Cell Prolif 2019; 52:e12658. [PMID: 31297910 PMCID: PMC6797511 DOI: 10.1111/cpr.12658] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/09/2019] [Accepted: 05/15/2019] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES The bone tissue engineering primarily focuses on three-dimensional co-culture systems, which physical and biological properties resemble the cell matrix of actual tissues. The complex dialogue between bone-forming and endothelial cells (ECs) in a tissue-engineered construct will directly regulate angiogenesis and bone regeneration. The purpose of this study was to investigate whether co-culture between osteogenic and angiogenic cells derived by bone mesenchymal stem cells (MSCs) could affect cell activities and new bone formation. MATERIALS AND METHODS Mesenchymal stem cells were dually induced to differentiate into osteogenic cells (OMSCs) and ECs; both cell types were co-cultured at different ratios to investigate their effects and underlying mechanisms through ELISA, RT-qPCR and MTT assays. The selected cell mixture was transplanted onto a nano-hydroxyapatite/polyurethane (n-HA/PU) scaffold to form a cell-scaffold construct that was implanted in the rat femoral condyles. Histology and micro-CT were examined for further verification. RESULTS ELISA and gene expression studies revealed that co-cultured OMSCs/ECs (0.5/1.5) significantly elevated the transcription levels of osteogenic genes such as ALP, Col-I and OCN, as well as transcription factors Msx2, Runx2 and Osterix; it also upregulated angiogenic factors of vascular endothelial growth factor (VEGF) and CD31 when compared with cells cultured alone or in other ratios. The optimized OMSCs/ECs group had more abundant calcium phosphate crystal deposition, further facilitated their bone formation in vivo. CONCLUSIONS The OMSCs/ECs-scaffold constructs at an optimal cell ratio (0.5/1.5) achieved enhanced osteogenic and angiogenic factor expression and biomineralization, which resulted in more effective bone formation.
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Affiliation(s)
- Limei Li
- Research Center for Nano‐Biomaterials, Analytical & Testing CenterSichuan UniversityChengduChina
- Technology Transfer CenterKunming Medical UniversityKunmingChina
| | - Jidong Li
- Research Center for Nano‐Biomaterials, Analytical & Testing CenterSichuan UniversityChengduChina
| | - Qin Zou
- Research Center for Nano‐Biomaterials, Analytical & Testing CenterSichuan UniversityChengduChina
| | - Yi Zuo
- Research Center for Nano‐Biomaterials, Analytical & Testing CenterSichuan UniversityChengduChina
| | - Bin Cai
- Research Center for Nano‐Biomaterials, Analytical & Testing CenterSichuan UniversityChengduChina
| | - Yubao Li
- Research Center for Nano‐Biomaterials, Analytical & Testing CenterSichuan UniversityChengduChina
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29
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Núñez-Toldrà R, Montori S, Bosch B, Hupa L, Atari M, Miettinen S. S53P4 Bioactive Glass Inorganic Ions for Vascularized Bone Tissue Engineering by Dental Pulp Pluripotent-Like Stem Cell Cocultures. Tissue Eng Part A 2019; 25:1213-1224. [DOI: 10.1089/ten.tea.2018.0256] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Raquel Núñez-Toldrà
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Barcelona, Spain
| | - Sheyla Montori
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Begoña Bosch
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Leena Hupa
- Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
| | - Maher Atari
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain
- Surgery and Oral Implantology Department, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Susanna Miettinen
- Adult Stem Cell Research Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Research, Development and Innovation Centre, Tampere University Hospital, Tampere, Finland
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30
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Chen X, Song Z, Chen R, Tan S, Huang C, Liu Y, Cheng B, Fu Q. Lysophosphatidic acid enhanced the osteogenic and angiogenic capability of osteoblasts via LPA1/3 receptor. Connect Tissue Res 2019; 60:85-94. [PMID: 29447019 DOI: 10.1080/03008207.2018.1439485] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Lysophosphatidic acid is a serum-derived growth factor that is involved in wound healing. Although in its infancy, a growing body of evidence has demonstrated that lysophosphatidic acid exerts a potentially significant role in regulating bone cell biology. However, previous studies mainly focused on the osteoinductive potential of lysophosphatidic acid, its effects on bone tissue vascularization, another essential element during bone regeneration, remains ill-defined so far. Here in this study, we examined the effects of lysophosphatidic acid on osteogenic differentiation as well as the angiogenesis-inducing capacity of pre-osteoblasts, a cell population that coordinates osteogenic and angiogenic processes in bone regenerating niche. Our results showed that treatment of MC3T3-E1 pre-osteoblastic cells with lysophosphatidic acid enhanced alkaline phosphatase activity and matrix mineralization, demonstrating in vitro osteoblastic differentiation. Of particular importance was the finding that vascular endothelial growth factor secretion also increased after lysophosphatidic acid treatment. Lysophosphatidic acid conditioned media of MC3T3-E1 cells was capable of promoting angiogenic behavior of endothelial cells, as evidenced by stimulating proliferation, migration, and tube formation. Besides, inhibition of LPA1/3 receptor abolished lysophosphatidic acid-induced elevation of the osteogenic and angiogenic capability of pre-osteoblasts. Our research demonstrated the important role of lysophosphatidic acid in coupling osteogenesis and angiogenesis during bone remodeling through orchestrating pre-osteoblast behavior, and implications therein for novel and effective treatment strategies for bone regeneration success.
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Affiliation(s)
- Xiaodan Chen
- a Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou , Guangdong , P.R. China
| | - Zijun Song
- a Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou , Guangdong , P.R. China
| | - Rui Chen
- b Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute , Guangdong Second Provincial General Hospital , Guangzhou , Guangdong , P.R. China
| | - Shuyi Tan
- a Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou , Guangdong , P.R. China.,c The Affiliated Stomatological Hospital of Southern Medical University & Guangdong Provincial Stomatological Hospital , Guangzhou , Guangdong , P.R. China
| | - Chunhuang Huang
- a Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou , Guangdong , P.R. China
| | - Yanhui Liu
- d The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine , Guangzhou , Guangdong , P.R. China
| | - Bin Cheng
- a Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou , Guangdong , P.R. China
| | - Qiang Fu
- a Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou , Guangdong , P.R. China
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Zhao S, Yin J, Yu Q, Zhang G, Min S. [Vascular endothelial growth factor/polylactide-polyethyleneglycol-polylactic acid copolymer/basic fibroblast growth factor mixed microcapsules in promoting angiogenic differentiation of rat bone marrow mesenchymal stem cells in vitro]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2019; 33:243-251. [PMID: 30739424 PMCID: PMC8337609 DOI: 10.7507/1002-1892.201808099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/14/2018] [Indexed: 11/03/2022]
Abstract
Objective To observe the effect of vascular endothelial growth factor/polylactide-polyethyleneglycol-polylactic acid copolymer/basic fibroblast growth factor (VEGF/PELA/bFGF) mixed microcapsules in promoting the angiogenic differentiation of rat bone marrow mesenchymal stem cells (BMSCs) in vitro. Methods The BMSCs were isolated by the method of whole bone marrow adherent, and sub-cultured. The passage 3 BMSCs were identified by Wright-Giemsa staining and flow cytometry, and used for subsequent experiments. VEGF/PELA/bFGF (group A), PELA/bFGF (group B), VEGF/PELA (group C), and PELA (group D) microcapsules were prepared. The biodegradable ability and cytotoxicity of PELA microcapsule were determined,and the slow-released ability of VEGF/PELA/bFGF mixed microcapsules was measured. The passage 3 BMSCs were co-cultured with the extracts of groups A, B, C, and D, separately. At 1, 3, 7, 14, and 20 days after being cultured, the morphological changes of induced BMSCs were recorded. At 21 days, the induced BMSCs were tested for DiI-labeled acetylated low density lipoprotein (Dil-ac-LDL) and FITC-labeled ulex europaeus agglutinin I (FITC-UEA-I) uptake ability. The tube-forming ability of the induced cells on Matrigel was also verified. The differences of the vascularize indexes in nodes, master junctions, master segments, and tot.master segments length in 4 groups were summarized and analyzed. Results The isolated and cultured cells were identified as BMSCs. The degradation time of PELA was more than 20 days. There was no significant effect on cell viability under co-culture conditions. At 20 days, the cumulative release of VEGF in the mixed microcapsules exceeded 95%, and the quantity of bFGF exceeded 80%. The morphology of cells in groups A, B, and C were changed. The cells in groups A and B showed the typical change of cobble-stone morphology. The numbers of double fluorescent labeled cells observed by fluorescence microscope were the most in group A, and decreases from group B and group C, with the lowest in group D. The cells in groups A and B formed a grid-like structure on Matrigel. Quantitative analysis showed that the differences in the number of nodes, master junctions, master segments, and tot.master segments length between groups A, B and groups C, D were significant ( P<0.05). The number of nodes and the tot.master segments length of group A were more than those of group B ( P<0.05). There was no significant differences in the number of master junctions and master segments between group A and group B ( P>0.05). Conclusion VEGF/PELA/bFGF mixed microcapsules have significantly ability to promote the angiogenic differentiation of rat BMSCs in vitro.
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Affiliation(s)
- Shengli Zhao
- Department of Spinal Surgery, Zhujiang Hospital of Southern Medical University, Guangzhou Guangdong, 510282, P.R.China
| | - Jie Yin
- Department of Hand Surgery, Ningbo No.6 Hospital, Ningbo Zhejiang, 315040, P.R.China
| | - Qinghe Yu
- Department of Spinal Surgery, Zhujiang Hospital of Southern Medical University, Guangzhou Guangdong, 510282, P.R.China
| | - Guowei Zhang
- Department of Spinal Surgery, Zhujiang Hospital of Southern Medical University, Guangzhou Guangdong, 510282, P.R.China
| | - Shaoxiong Min
- Department of Spinal Surgery, Zhujiang Hospital of Southern Medical University, Guangzhou Guangdong, 510282,
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Raines AL, Berger MB, Patel N, Hyzy SL, Boyan BD, Schwartz Z. VEGF-A regulates angiogenesis during osseointegration of Ti implants via paracrine/autocrine regulation of osteoblast response to hierarchical microstructure of the surface. J Biomed Mater Res A 2018; 107:423-433. [PMID: 30461195 DOI: 10.1002/jbm.a.36559] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/24/2018] [Accepted: 10/08/2018] [Indexed: 12/22/2022]
Abstract
Establishment of a patent vasculature at the bone-implant interface plays a significant role in determining overall success of orthopedic and dental implants. Osteoblasts produce vascular endothelial growth factor-A (VEGF-A), an important regulator of angiogenesis during bone formation and healing, and the amount secreted is sensitive to titanium (Ti) surface microtopography and surface energy. The purpose of this study was to determine if surface properties modulate cellular response to VEGF-A. MG63 osteoblast-like cells were transfected with shRNA targeting VEGF-A at >80% knockdown. Cells stably silenced for VEGF-A secreted reduced levels of osteocalcin, osteoprotegerin, FGF-2, and angiopoietin-1 when cultured on grit-blasted/acid-etched (SLA) and hydrophilic SLA (modSLA) Ti surfaces and conditioned media from these cultures caused reduced angiogenesis in an endothelial tubule formation assay. Treatment of MG63 cells with 20 ng/mL rhVEGF-A165 rescued production in silenced cells and increased production of osteocalcin, osteoprotegerin, FGF-2, and angiopoietin-1, with greatest effects on control cells cultured on modSLA. Addition of a neutralization antibody against VEGF receptor 2 (VEGFR2; Flk-1) resulted in a significant increase in VEGF-A production. Overall, this study indicates that VEGF-A has two roles in osseointegration: enhanced angiogenesis and an autocrine/paracrine role in maturation of osteoblast-like cells in response to Ti surface properties. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 423-433, 2019.
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Affiliation(s)
- Andrew L Raines
- Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Michael B Berger
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Nehal Patel
- Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Sharon L Hyzy
- Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University, Georgia Institute of Technology, Atlanta, Georgia, USA.,Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Barbara D Boyan
- Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University, Georgia Institute of Technology, Atlanta, Georgia, USA.,Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Zvi Schwartz
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, USA.,Department of Periodontology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
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Yang H, Hong N, Liu H, Wang J, Li Y, Wu S. Differentiated adipose-derived stem cell cocultures for bone regeneration in RADA16-I in vitro. J Cell Physiol 2018; 233:9458-9472. [PMID: 29995982 DOI: 10.1002/jcp.26838] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 05/10/2018] [Indexed: 02/06/2023]
Abstract
Craniofacial defects can cause morbidness. Adipose-derived stem cells (ADSCs) have shown great promise for osteogeneration and vascularization; therefore cocultures of differentiated ADSCs are explored to increase bone and vessel formation. In this study, ADSCs were induced into osteogenic ADSCs (os-ADSCs) and endothelial ADSCs (endo-ADSCs) cells, which were then cocultured in variable proportions (os-ADSCs/endo-ADSCs = 2:1, 1:1, 1:2). The os-ADSCs in a ratio of 1:1 expressed more ALP, RUNX2 and COL-I, whereas VEGF, vWF and CD31 were upregulated in the endo-ADSCs of this group. Next generation RNA sequencing (RNA-seq) was performed to evaluate the molecular mechanisms of cocultured ADSCs. The os-ADSCs and endo-ADSCs interacted with each other during osteogenic and angiogenic differentiation, especially at the ratio of 1:1, and were regulated by vascular-related genes, cell-mediated genes, bone-related genes and the transforming growth factor β signaling pathway (TGF-β), mitogen-activated protein kinase signaling pathway (MAPK) and wnt signaling pathway (Wnt). Angptl4, apoe, mmp3, bmp6, mmp13 and fgf18 were detected to be up-regulated, and cxcl12 and wnt5a were down-regulated. The results showed that the gene expression levels were consistent with that in RNA-seq. The cells were then seeded into self-assembling peptide RADA16-I scaffolds as cocultures (1:1) and monocultures (ADSCs, os-ADSCs, endo-ADSCs). The results showed that the cells of all groups grew and proliferated well on the scaffolds, and the cocultured group exhibited better osteogeneration and vascularization. In conclusion, cocultured os-ADSCs and endo-ADSCs at the ratio of 1:1 showed strong osteogenic and angiogenic differentiation. There is a great potential for osteogenesis and vascularization by 3D culturing cells in a 1:1 ratio in self-assembling peptide RADA16-I scaffolds, which requires evaluation for bone regeneration in vivo.
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Affiliation(s)
- Huifang Yang
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Nanrui Hong
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Hsiaowei Liu
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Jieda Wang
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Yan Li
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Shuyi Wu
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
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Jiang YN, Zhao J, Chu FT, Jiang YY, Tang GH. Tension-loaded bone marrow stromal cells potentiate the paracrine osteogenic signaling of co-cultured vascular endothelial cells. Biol Open 2018; 7:bio.032482. [PMID: 29716948 PMCID: PMC6031349 DOI: 10.1242/bio.032482] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Co-culture of bone marrow stromal cells (BMSCs) and vascular endothelial cells (VECs) is a promising strategy for better osteogenesis and pre-vascularization in bone tissue engineering. Recent reports have shown that mechanical stretching further promotes osteogenesis in BMSC/VEC co-culture systems, but the underlying mechanism of this process remains unclear. In this study, noncontact co-cultures of rat primary BMSCs and VECs were employed to interrogate paracrine cell-to-cell communications in response to tension. Exposure of VECs to 6% tension for 48 h elicited neither ALP activity nor mRNA expression of OCN and OPN in BMSCs incubated in a shared culture medium. Instead, BMSCs subjected to tension induced robust VEGF release, and its conditioned medium enhanced the proliferation and tubular formation of VECs with a concurrent increase in BMP-2 and IGF-1 production. Conditioned medium from activated VECs in turn promoted expression of osteogenic genes in BMSCs, followed by an increase in matrix mineralization. The addition of VEGF-R inhibitor Tivozanib to these systems abrogated the tension-induced paracrine effects on VECs and subsequently impaired BMSC osteogenesis. These results clearly demonstrate that the response of BMSCs to tension potentiates paracrine osteogenic signaling from VECs; this positive feedback loop is initiated by VEGF release.
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Affiliation(s)
- Yu Nan Jiang
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Oral Bioengineering Lab, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology, Shanghai 200011, People's Republic of China
| | - Jun Zhao
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Oral Bioengineering Lab, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology, Shanghai 200011, People's Republic of China
| | - Feng Ting Chu
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Oral Bioengineering Lab, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology, Shanghai 200011, People's Republic of China
| | - Yang Yang Jiang
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China.,Oral Bioengineering Lab, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology, Shanghai 200011, People's Republic of China
| | - Guo Hua Tang
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, People's Republic of China .,Oral Bioengineering Lab, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology, Shanghai 200011, People's Republic of China
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35
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Jing X, Yin W, Tian H, Chen M, Yao X, Zhu W, Guo F, Ye Y. Icariin doped bioactive glasses seeded with rat adipose-derived stem cells to promote bone repair via enhanced osteogenic and angiogenic activities. Life Sci 2018; 202:52-60. [PMID: 29471105 DOI: 10.1016/j.lfs.2018.02.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 02/01/2018] [Accepted: 02/17/2018] [Indexed: 12/29/2022]
Abstract
AIMS Cell communication between mesenchymal stem cells and blood vessel cells are crucial for bone repair. We have previously shown that the phyto-molecule icariin significantly promoted osteogenic differentiation of rat adipose-derived stem cells (ASCs). In the present study, we aimed to investigate the relationship between icariin induced osteogenic differentiation of ASCs and angiogenesis of rat endothelial progenitor cells (EPCs). Besides, we used icariin doped 45S5 Bioglass seeded with ASCs to promote bone healing in rat calvarial bone defect models. MAIN METHODS The conditioned medium from undifferentiated ASCs (ASCs-CM) and icariin induced ASCs (Icariin-ASCs-CM) was obtained and the vascular endothelial growth factor (VEGF) protein secretion level was measured. The angiogenic capacity and molecular mechanism of ASC-CM and Icariin-ASCs-CM on rat EPCs was analyzed. Rat calvarial bone defect models were established and treated with scaffolds implantation. Micro-CT imaging, histological and immunohistological staining were performed on the isolated specimens at 12 weeks post-surgery. KEY FINDINGS VEGF protein expression was significantly increased after icariin treatment with the highest expression in the 10-7 M icariin group. Icariin-ASCs-CM obviously increased the angiogenesis of rat EPCs and this capacity was inhibited by a VEGF/VEGF receptor-specific binding inhibitor bevacizumab. Results of the in vivo investigations showed that all scaffolds promoted bone healing compared to the Control group. Icariin significantly improved the healing capacity of 45S5 Bioglass seeded with ASCs. SIGNIFICANCE Implantation of Icariin/45S5 Bioglass seeded with rat ASCs could obviously promote both osteogenesis and angiogenesis and therefore represents an ideal candidate bone substitutes for bone repair and regeneration.
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Affiliation(s)
- Xingzhi Jing
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Weifeng Yin
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Hongtao Tian
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Mengcun Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Xudong Yao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Wentao Zhu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Fengjing Guo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
| | - Yaping Ye
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
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36
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Enezei HH, Ahmad A, Takeuchi K, Suzuki J, Khamis MF, Razak NHA, Rahman RA, Qabbani AA, Abdulhameed EA, Sugita Y, Maeda H, Alam MK. Osteoinductive Activity of Bone Scaffold Bioceramic Companied with Control Release of VEGF Protein Treated Dental stem cells as A New Concept for Bone Regeneration: Part II. J HARD TISSUE BIOL 2018. [DOI: 10.2485/jhtb.27.69] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Hamid Hammad Enezei
- Department of Oral & Maxillofacial Surgery, College of Dentistry, University of Anbar
- Department of Oral & Maxillofacial Surgery, School of Dental Sciences, Universiti Sains Malaysia Health Campus
| | - Azlina Ahmad
- Department of Biochemistry, School of Dental Sciences, Universiti Sains Malaysia Health Campus
| | - Kazuo Takeuchi
- Department of Gerodontology, School of Dentistry, Aichi Gakuin University
| | - Junji Suzuki
- Department of Oral Pathology, School of Dentistry, Aichi Gakuin University
| | - Mohd Fadhli Khamis
- Department of Oral Biology and Forensic Dentistry Unit, School of Dental Sciences, Universiti Sains Malaysia
| | - Noor Hayati Abdul Razak
- Department of Oral & Maxillofacial Surgery, School of Dental Sciences, Universiti Sains Malaysia Health Campus
| | - Roselinda Abd Rahman
- Department of Oral & Maxillofacial Surgery, School of Dental Sciences, Universiti Sains Malaysia Health Campus
| | - Ali Al Qabbani
- Department of Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah
| | | | - Yoshihiko Sugita
- Department of Oral Pathology, School of Dentistry, Aichi Gakuin University
| | - Hatsuhiko Maeda
- Department of Oral Pathology, School of Dentistry, Aichi Gakuin University
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Simultaneous visualisation of calcified bone microstructure and intracortical vasculature using synchrotron X-ray phase contrast-enhanced tomography. Sci Rep 2017; 7:13289. [PMID: 29038597 PMCID: PMC5643345 DOI: 10.1038/s41598-017-13632-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 09/27/2017] [Indexed: 01/12/2023] Open
Abstract
3D imaging of the bone vasculature is of key importance in the understanding of skeletal disease. As blood vessels in bone are deeply encased in the calcified matrix, imaging techniques that are applicable to soft tissues are generally difficult or impossible to apply to the skeleton. While canals in cortical bone can readily be identified and characterised in X-ray computed tomographic data in 3D, the soft tissue comprising blood vessels that are putatively contained within the canal structures does not provide sufficient image contrast necessary for image segmentation. Here, we report an approach that allows for rapid, simultaneous visualisation of calcified bone tissue and the vasculature within the calcified bone matrix. Using synchrotron X-ray phase contrast-enhanced tomography we show exemplar data with intracortical capillaries uncovered at sub-micrometre level without the need for any staining or contrast agent. Using the tibiofibular junction of 15 week-old C57BL/6 mice post mortem, we show the bone cortical porosity simultaneously along with the soft tissue comprising the vasculature. Validation with histology confirms that we can resolve individual capillaries. This imaging approach could be easily applied to other skeletal sites and transgenic models, and could improve our understanding of the role the vasculature plays in bone disease.
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38
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Kim B, Yang S, You H, Shin H, Lee J. Fucoidan‐induced osteogenic differentiation promotes angiogenesis by inducing vascular endothelial growth factor secretion and accelerates bone repair. J Tissue Eng Regen Med 2017; 12:e1311-e1324. [DOI: 10.1002/term.2509] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 02/12/2017] [Accepted: 06/20/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Beom‐Su Kim
- Wonkwang Bone Regeneration Research InstituteWonkwang University Iksan Jeonbuk Republic of Korea
- Bonecell Biotech Inc. Daejeon Republic of Korea
- Carbon Nano Convergence Technology Center for Next Generation Engineers (CNN)Chonbuk National University 567 Baekje‐daero, Deokjin‐gu Jeonju‐si Jeollabuk‐do 54896 Republic of Korea
| | - Sun‐Sik Yang
- Wonkwang Bone Regeneration Research InstituteWonkwang University Iksan Jeonbuk Republic of Korea
| | - Hyung‐Keun You
- Department of Periodontology, School of DentistryWonkwang University Iksan Jeonbuk Republic of Korea
| | - Hong‐In Shin
- IHBR, Department of Oral Pathology, School of DentistryKyungpook National University Daegu Republic of Korea
| | - Jun Lee
- Wonkwang Bone Regeneration Research InstituteWonkwang University Iksan Jeonbuk Republic of Korea
- Departments of Oral and Maxillofacial SurgeryWonkwang University Iksan Jeonbuk South Korea
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Manipulation of Human Primary Endothelial Cell and Osteoblast Coculture Ratios to Augment Vasculogenesis and Mineralization. Ann Plast Surg 2017; 77:122-8. [PMID: 25144419 DOI: 10.1097/sap.0000000000000318] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Tissue-engineering scaffolds are often seeded with a single type of cell, but there has been more focus on cocultures to improve angiogenesis and bone formation for craniofacial applications. Investigation of bone-derived osteoblasts (OBs) is important because of the use of bone grafts and migration of OBs from native bone into constructs in vivo and therefore, their contribution to bone formation in vivo. The limitation of primary OBs has been their inability to mineralize without osteogenic factors in vitro. Through coculture of OBs and endothelial cells (ECs) and manipulation of the coculture ratio, mineralization can be achieved without osteogenic media or additional growth factors, thus enhancing their utility for tissue-engineering applications. An optimal ratio of EC/OB for vasculogenesis and mineralization has not been determined for human primary cells. Human umbilical vein ECs were cultured with normal human primary OBs in different EC/OB ratios, namely, 10:1, 5:1, 1:1, 1:5, and 1:10 with EC and OB monocultures as controls. The number of vasculogenic networks in a collagen matrix was highest in ratios of 5:1 and 1:1. ECs lined up and formed capillary-like networks by day 10, which was not seen in the other groups. On polystyrene, cells were cocultured with ECs and OBs in direct contact (direct coculture) or separated by a transwell membrane (indirect coculture). At day 21, Alizarin Red staining showed mineralization on the 1:5 and 1:10 direct coculture ratios, with 1:5 having more mineralization nodules present than 1:10. No mineralization was seen in other direct coculture ratios or in any of the indirect coculture ratios. Alkaline phosphatase secretion was highest in the 1:5 direct coculture group. Vascular endothelial growth factor secretion from OBs was present in the 1:5 and 1:10 direct coculture ratios at all time points and inhibited after day 1 in other coculture groups. To improve vasculogenesis, cocultures of primary human ECs and OBs in ratios of 5:1 should be used, but to improve bone formation, the 1:5 direct coculture ratio results in most mineralization.
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Bone response to porous alumina implants coated with bioactive materials, observed using different characterization techniques. J Appl Biomater Funct Mater 2017; 15:e223-e235. [PMID: 28574101 PMCID: PMC6379886 DOI: 10.5301/jabfm.5000347] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2017] [Indexed: 01/16/2023] Open
Abstract
Background Implants or implantable devices should integrate into the host tissue faster
than fibrous capsule formation, in which the design of the interface is one
of the biggest challenges. Generally, bioactive materials are not viable for
load-bearing applications, so inert biomaterials are proposed. However, the
surface must be modified through techniques such as coating with bioactive
materials, roughness and sized pores. The aim of this research was to
validate an approach for the evaluation of the tissue growth on implants of
porous alumina coated with bioactive materials. Methods Porous alumina implants were coated with 45S5 Bioglass® (BG) and
hydroxyapatite (HA) and implanted in rat tibiae for a period of 28 days. Ex
vivo resections were performed to analyze osseointegration, along with
histological analysis, Scanning Electron Microscopy with Energy Dispersive
X-Ray spectroscopy (SEM-EDX) line scanning, radiography and biomechanical
testing. Results Given that the process of implant integration needs with the bone tissue to
be accelerated, it was then seen that BG acted to start the rapid
integration, and HA acted to sustaining the process. Conclusions Inert materials coated with bioglass and HA present a potential for
application as bone substitutes, preferably with pores of diameters between
100 μm and 400 μm and, restrict for smaller than 100 μm, because it prevents
pores without organized tissue formation or vacant. Designed as functional
gradient material, stand out for applications in bone tissue under load,
where, being the porous surface responsible for the osseointegration and the
inner material to bear and to transmit the loads.
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41
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Offner D, Wagner Q, Idoux-Gillet Y, Gegout H, Ferrandon A, Schwinté P, Musset AM, Benkirane-Jessel N, Keller L. Hybrid collagen sponge and stem cells as a new combined scaffold able to induce the re-organization of endothelial cells into clustered networks. Biomed Mater Eng 2017; 28:S185-S192. [PMID: 28372294 DOI: 10.3233/bme-171640] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The time needed to obtain functional regenerated bone tissue depends on the existence of a reliable vascular support. Current techniques used in clinic, for example after tooth extraction, do not allow regaining or preserving the same bone volume. Our aim is to develop a cellularized active implant of the third generation, equipped with human mesenchymal stem cells to improve the quality of implant vascularization. We seeded a commercialized collagen implant with human mesenchymal stem cells (hMSCs) and then with human umbilical vein endothelial cells (HUVECs). We analyzed the biocompatibility and the behavior of endothelial cells with this implant. We observed a biocompatibility of the active implant, and a re-organization of endothelial cells into clustered networks. This work shows the possibility to develop an implant of the third generation supporting vascularization, improving the medical care of patients.
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Affiliation(s)
- Damien Offner
- INSERM (French National Institute of Health and Medical Research), 'Osteoarticular and Dental Regenerative Nanomedicine' Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg cedex, FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, F-67000 Strasbourg, France.,Hôpitaux Universitaires de Strasbourg (HUS), 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Quentin Wagner
- INSERM (French National Institute of Health and Medical Research), 'Osteoarticular and Dental Regenerative Nanomedicine' Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg cedex, FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, F-67000 Strasbourg, France
| | - Ysia Idoux-Gillet
- INSERM (French National Institute of Health and Medical Research), 'Osteoarticular and Dental Regenerative Nanomedicine' Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg cedex, FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, F-67000 Strasbourg, France
| | - Hervé Gegout
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, F-67000 Strasbourg, France
| | - Arielle Ferrandon
- INSERM (French National Institute of Health and Medical Research), 'Osteoarticular and Dental Regenerative Nanomedicine' Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg cedex, FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, F-67000 Strasbourg, France
| | - Pascale Schwinté
- INSERM (French National Institute of Health and Medical Research), 'Osteoarticular and Dental Regenerative Nanomedicine' Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg cedex, FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, F-67000 Strasbourg, France
| | - Anne-Marie Musset
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, F-67000 Strasbourg, France.,Hôpitaux Universitaires de Strasbourg (HUS), 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Nadia Benkirane-Jessel
- INSERM (French National Institute of Health and Medical Research), 'Osteoarticular and Dental Regenerative Nanomedicine' Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg cedex, FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, F-67000 Strasbourg, France
| | - Laetitia Keller
- INSERM (French National Institute of Health and Medical Research), 'Osteoarticular and Dental Regenerative Nanomedicine' Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg cedex, FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, F-67000 Strasbourg, France
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Moussa M, Banakh O, Wehrle-Haller B, Fontana P, Scherrer S, Cattani M, Wiskott A, Durual S. TiN x O y coatings facilitate the initial adhesion of osteoblasts to create a suitable environment for their proliferation and the recruitment of endothelial cells. ACTA ACUST UNITED AC 2017; 12:025001. [PMID: 28244429 DOI: 10.1088/1748-605x/aa57a7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Titanium-nitride-oxide coatings (TiN x O y ) improve osseointegration of endosseous implants. The exact mechanisms by which these effects are mediated are poorly understood except for an increase of osteoblast proliferation while a high degree of differentiation is maintained. One hypothesis holds that TiN x O y facilitates the initial spreading and adhesion of the osteoblasts. The aim of this work was to investigate the molecular mechanisms of osteoblast adhesion on TiN x O y as compared to microrough titanium SLA. A global view of the osseointegrative process, that is, taking into account other cell groups, especially endothelial cells, is also presented. To this aim, gene expression and focal adhesion analysis, cocultures and wound assays were performed early after seeding, from 6 h to 3 days. We demonstrated that TiN x O y coatings enhance osteoblast adhesion and spreading when compared to the standard microrough titanium. The integrin β1, either in association with α1 or with α2 plays a central role in these mechanisms. TiN x O y coatings optimize the process of osseointegration by acting at several levels, especially by upregulating osteoblast adhesion and proliferation, but also by supporting neovascularization and the development of a suitable inflammatory environment.
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Affiliation(s)
- M Moussa
- Division of fixed prosthodontics and biomaterials, University clinics of dental medicine, University of Geneva, Switzerland
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43
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Ajdžanović VZ, Filipović BR, Šošić Jurjević BT, Milošević VL. Testosterone supplementation, glucocorticoid milieu and bone homeostasis in the ageing male. Fundam Clin Pharmacol 2017; 31:372-382. [PMID: 28186359 DOI: 10.1111/fcp.12277] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 01/04/2017] [Accepted: 02/07/2017] [Indexed: 12/27/2022]
Abstract
Male ageing is entwined with a continuous fall in free testosterone levels, which contributes to the pathogenesis of bone loss. Glucocorticoid excess, either dependent on the ageing process or iatrogenically induced, was found to additionally impair the bone structure and metabolism. Cautious testosterone supplementation in this respect may positively affect the glucocorticoid milieu and bone homeostasis, while testosterone-induced changes in the glucocorticoid output could serve as a determinant of bone-related therapeutic outcome. Namely, bone mineral content/density, the parameters of trabecular bone structure as well as bone strength are enhanced, serum calcitonin levels tend to increase, while serum osteocalcin, serum parathyroid hormone and urinary calcium decrease, all upon testosterone administration to the ageing male. In parallel, testosterone application decreases glucocorticoid secretion in the animal models of male ageing, while clinical data in this field are still inconsistent. Importantly, a physiological link exists between testosterone-induced changes in glucocorticoid levels and the tendency of bone status improvement in the ageing male. We believe that the assessment of circulating adrenocorticotropic hormone concentrations together with glucocorticoid levels, reflecting the hypothalamic-pituitary-adrenal axis feedback loop operativeness during testosterone supplementation, represents a well-balanced bone-related therapeutic update.
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Affiliation(s)
- Vladimir Z Ajdžanović
- Department of Cytology, Institute for Biological Research 'Siniša Stanković', University of Belgrade, Despot Stefan Blvd. 142, 11060, Belgrade, Serbia
| | - Branko R Filipović
- Department of Cytology, Institute for Biological Research 'Siniša Stanković', University of Belgrade, Despot Stefan Blvd. 142, 11060, Belgrade, Serbia
| | - Branka T Šošić Jurjević
- Department of Cytology, Institute for Biological Research 'Siniša Stanković', University of Belgrade, Despot Stefan Blvd. 142, 11060, Belgrade, Serbia
| | - Verica Lj Milošević
- Department of Cytology, Institute for Biological Research 'Siniša Stanković', University of Belgrade, Despot Stefan Blvd. 142, 11060, Belgrade, Serbia
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44
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Guo X, Wei S, Lu M, Shao Z, Lu J, Xia L, Lin K, Zou D. Dose-dependent Effects of Strontium Ranelate on Ovariectomy Rat Bone Marrow Mesenchymal Stem Cells and Human Umbilical Vein Endothelial Cells. Int J Biol Sci 2016; 12:1511-1522. [PMID: 27994515 PMCID: PMC5166492 DOI: 10.7150/ijbs.16499] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/26/2016] [Indexed: 12/13/2022] Open
Abstract
In clinic, strontium ranelate (SrR) is a useful drug to treat osteoporosis by orally taken method, but some side effect appeared in recent years. The aim of this study is to evaluate the effectiveness and safety of SrR on cells by direct application, to study the possibility of local application of this drug. Qualitative ALP staining, quantitative ALP activity assay, alizarin red staining, realtime PCR and westernblot assay were used to evaluate the osteogenesis ability of SrR under normal or osteogenic induction environment of ovariectomy bone marrow mesenchymal stem cells (OVX-BMSCs). The angiogenesis ability of SrR was studied by immunofluorescence staining of CD31 and vWF of OVX-BMSCs under angiogenesis induction environment, transwell, tubeformation and realtime PCR assay of HUVECs. Signaling pathway of PI3K/AKT/mTOR was also studied. The result demonstrated that SrR could enhance proliferation and osteogenic differentiation of OVX-BMSCs. The osteogenesis effect of SrR has been proved by the better performed of ALP activity, alizarin red staining and the remarkable up-regulation of ALP, Col-I, Runx2, OCN, BMP-2, BSP, OPG of the OVX-BMSCs, and reduction of RANKL. In addition, SrR promotes angiogenesis differentiation of both OVX-BMSCs and HUVECs. Higher intensity of immunostaining of CD31 and vWF, better result of transwell and tubeformation assay could be observed in SrR treated group, and increasing mRNA levels of VEGF and Ang-1 in the OVX-BMSCs, VEGF in HUVECs were learnt. Signaling pathway assay showed that PI3K/AKT/mTOR signaling pathway was involved in this SrR triggered angiogenesis procedure. The thrombosis marker ET-1, PAI-1 and t-PA were up-regulated, but no significant differences for low concentration (<0.5mM). The concentration between 0.25-0.5mM may be more appropriate for local application, and locally application of SrR could be considered as a promising way for bone regeneration.
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Affiliation(s)
- Xiaojing Guo
- Department of Stomatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Silong Wei
- Department of Oral and Craniomaxillofacial Sciences, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Mengmeng Lu
- Department of Stomatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Zhengwei Shao
- Department of Stomatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Jiayu Lu
- Department of Stomatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Lunguo Xia
- Department of Oral and Craniomaxillofacial Sciences, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Kaili Lin
- School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Derong Zou
- Department of Stomatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
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Quan L, Wang Y, Liang J, Qiu T, Wang H, Zhang Y, Zhang Y, Hui Q, Tao K. Screening for genes, transcription factors and miRNAs associated with the myogenic and osteogenic differentiation of human adipose tissue-derived stem cells. Int J Mol Med 2016; 38:1839-1849. [PMID: 27779643 DOI: 10.3892/ijmm.2016.2788] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 09/09/2016] [Indexed: 11/05/2022] Open
Abstract
In the present study, we aimed to reveal the molecular mechanisms responsible for the differentiation of human adipose tissue-derived stem cells (hASCs) into myocytes and osteoblasts. Microarray data GSE37329 were obtained from the Gene Expression Omnibus database, including three hASC cell lines from healthy donors, two osteogenic lineages and two myogenic lineages from the in vitro‑induction of hASCs. Differentially expressed genes (DEGs) in the two lineages were firstly screened. Subsequently, the underlying functions of the two sets of DEGs were investigated by Gene Ontology function and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis, followed by protein-protein interaction (PPI) network construction. Regulatory relationships between transcription factors (TFs) and microRNAs (miRNAs or miRs) with target genes were finally explored using different algorithms. A total of 665 and 485 DEGs were identified from the hASC‑derived myogenic and osteogenic lineages, respectively. The shared upregulated genes (n=205) in the two sets of DEGs were mainly involved in metabolism-related pathways, whereas the shared downregulated genes (n=128) were significantly enriched in the transforming growth factor-β (TGF-β) signaling pathway. Four genes, vascular endothelial growth factor A (VEGFA), fibroblast growth factor 2 (FGF2), nerve growth factor (NGF) and interleukin 1B (IL1B), presented with relatively higher degrees in both PPI networks. The transcription factor RAD21 was predicted to target shared upregulated and downregulated genes as well as specific downregulated genes in the myogenic and the osteogenic lineages. In addition, miRNA-DEG interaction analysis revealed that hsa-miR-1 regulated the most shared DEGs in the two lineages. There may be a correlation between the four genes, VEGFA, FGF2, IL1B and NGF, and the differentiation of hASCs into myocytes and osteoblasts. The TF RAD21 and hsa-miR-1 may play important roles in regulating the expression of differentiation-associated genes.
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Affiliation(s)
- Liangliang Quan
- Department of Plastic Surgery, General Hospital of Shenyang Military Area Command, PLA, Shenyang, Liaoning 110016, P.R. China
| | - Yang Wang
- Department of Plastic Surgery, General Hospital of Shenyang Military Area Command, PLA, Shenyang, Liaoning 110016, P.R. China
| | - Jiulong Liang
- Department of Plastic Surgery, General Hospital of Shenyang Military Area Command, PLA, Shenyang, Liaoning 110016, P.R. China
| | - Tao Qiu
- Department of Plastic Surgery, General Hospital of Shenyang Military Area Command, PLA, Shenyang, Liaoning 110016, P.R. China
| | - Hongyi Wang
- Department of Plastic Surgery, General Hospital of Shenyang Military Area Command, PLA, Shenyang, Liaoning 110016, P.R. China
| | - Ye Zhang
- Department of Plastic Surgery, General Hospital of Shenyang Military Area Command, PLA, Shenyang, Liaoning 110016, P.R. China
| | - Yu Zhang
- Department of Plastic Surgery, General Hospital of Shenyang Military Area Command, PLA, Shenyang, Liaoning 110016, P.R. China
| | - Qiang Hui
- Department of Plastic Surgery, General Hospital of Shenyang Military Area Command, PLA, Shenyang, Liaoning 110016, P.R. China
| | - Kai Tao
- Department of Plastic Surgery, General Hospital of Shenyang Military Area Command, PLA, Shenyang, Liaoning 110016, P.R. China
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46
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Jiang Y, Wang Y, Tang G. Cyclic tensile strain promotes the osteogenic differentiation of a bone marrow stromal cell and vascular endothelial cell co-culture system. Arch Biochem Biophys 2016; 607:37-43. [DOI: 10.1016/j.abb.2016.08.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/11/2016] [Accepted: 08/19/2016] [Indexed: 01/09/2023]
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Wagner Q, Offner D, Idoux-Gillet Y, Saleem I, Somavarapu S, Schwinté P, Benkirane-Jessel N, Keller L. Advanced nanostructured medical device combining mesenchymal cells and VEGF nanoparticles for enhanced engineered tissue vascularization. Nanomedicine (Lond) 2016; 11:2419-30. [PMID: 27529130 DOI: 10.2217/nnm-2016-0189] [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] [Indexed: 12/22/2022] Open
Abstract
AIM Success of functional vascularized tissue repair depends on vascular support system supply and still remains challenging. Our objective was to develop a nanoactive implant enhancing endothelial cell activity, particularly for bone tissue engineering in the regenerative medicine field. MATERIALS & METHODS We developed a new strategy of tridimensional implant based on cell-dependent sustained release of VEGF nanoparticles. These nanoparticles were homogeneously distributed within nanoreservoirs onto the porous scaffold, with quicker reorganization of endothelial cells. Moreover, the activity of this active smart implant on cells was also modulated by addition of osteoblastic cells. RESULTS & CONCLUSION This sophisticated active strategy should potentiate efficiency of current therapeutic implants for bone repair, avoiding the need for bone substitutes.
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Affiliation(s)
- Quentin Wagner
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Damien Offner
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Ysia Idoux-Gillet
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Imran Saleem
- School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, UK
| | - Satyanarayana Somavarapu
- Department of Pharmaceutics, School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Pascale Schwinté
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Nadia Benkirane-Jessel
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Laetitia Keller
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
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48
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Guryanov I, Fiorucci S, Tennikova T. Receptor-ligand interactions: Advanced biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:890-903. [PMID: 27524092 DOI: 10.1016/j.msec.2016.07.072] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 07/11/2016] [Accepted: 07/26/2016] [Indexed: 12/24/2022]
Abstract
Receptor-ligand interactions (RLIs) are at the base of all biological events occurring in living cells. The understanding of interactions between complementary macromolecules in biological systems represents a high-priority research area in bionanotechnology to design the artificial systems mimicking natural processes. This review summarizes and analyzes RLIs in some cutting-edge biomedical fields, in particular, for the preparation of novel stationary phases to separate complex biological mixtures in medical diagnostics, for the design of ultrasensitive biosensors for identification of biomarkers of various diseases at early stages, as well as in the development of innovative biomaterials and approaches for regenerative medicine. All these biotechnological fields are closely related, because their success depends on a proper choice, combination and spatial disposition of the single components of ligand-receptor pairs on the surface of appropriately designed support.
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Affiliation(s)
- Ivan Guryanov
- Institute of Chemistry, St. Petersburg State University, 198504 St. Petersburg, Russia.
| | - Stefano Fiorucci
- Department of Clinical and Experimental Medicine, University of Perugia, 06122 Perugia, Italy.
| | - Tatiana Tennikova
- Institute of Chemistry, St. Petersburg State University, 198504 St. Petersburg, Russia.
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Arantes RVN, Cestari TM, Viscelli BA, Dionísio TJ, Garlet GP, Santos CF, de Assis GF, Taga R. Meloxicam temporally inhibits the expression of vascular endothelial growth factor receptor (VEGFR)-1 and VEGFR-2 during alveolar bone repair in rats. J Periodontol 2016; 86:162-72. [PMID: 25327303 DOI: 10.1902/jop.2014.140259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF) plays an important role during angiogenesis and bone repair. This study investigated whether the use of meloxicam alters bone repair via downregulation of VEGF and receptor expression. METHODS One hundred twenty male Wistar rats had their maxillary right incisor extracted. Animals were divided into a control group (CG; n = 60) and a meloxicam-treated group (TG; n = 60) that received either a single daily intraperitoneal injection of 0.9% NaCl or meloxicam 3 mg/kg, respectively, for 7 consecutive days. Alveolar bone repair was evaluated histomorphometrically, whereas VEGF and its receptors were analyzed by immunohistochemistry and quantitative polymerase chain reaction (qPCR). Data were submitted to two-way analysis of variance and Tukey post hoc test with P < 0.05. RESULTS Bone volume density increased significantly (P = 0.001) in both groups with a strong correlation between treatment and periods (P = 0.003). In the TG, a small amount of bone formation occurred compared with the CG between 3 and 21 days. No significant differences in the number of VEGF-positive cells per square millimeter (P = 0.07) and VEGF messenger RNA (mRNA) expression (P = 0.49) were found between groups. Immunostained cells per square millimeter and mRNA expression for VEGF receptor (VEGFR)-1 (P = 0.04 and P < 0.001) and VEGFR-2 (P < 0.001 for both analysis) showed a strong interaction between treatment groups and periods. In the TG, immunostained cells per square millimeter and mRNA expression for VEGFR-1 were, respectively, 89% and 37% lower from 3 to 10 days compared with the CG, whereas for VEGFR-2, these values were 252% and 60%, respectively, from 3 to 7 days. CONCLUSION In rat alveolar bone repair, meloxicam did not affect VEGF expression but downregulated VEGFR expression, which may cause a delay in the bone repair/remodeling process.
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50
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Liu C, Zhang X, Wu M, You L. Mechanical loading up-regulates early remodeling signals from osteocytes subjected to physical damage. J Biomech 2015; 48:4221-8. [DOI: 10.1016/j.jbiomech.2015.10.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 09/15/2015] [Accepted: 10/18/2015] [Indexed: 11/17/2022]
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