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Choi MJ, You TM, Jang YJ. Galectin-3 Plays an Important Role in BMP7-Induced Cementoblastic Differentiation of Human Periodontal Ligament Cells by Interacting with Extracellular Components. Stem Cells Int 2023; 2023:5924286. [PMID: 37396953 PMCID: PMC10313471 DOI: 10.1155/2023/5924286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/01/2023] [Accepted: 06/10/2023] [Indexed: 07/04/2023] Open
Abstract
Human periodontal ligament stem cells (hPDLSCs) contain multipotent postnatal stem cells that differentiate into PDL progenitors, osteoblasts, and cementoblasts. Previously, we obtained cementoblast-like cells from hPDLSCs using bone morphogenetic protein 7 (BMP7) treatment. Differentiation into appropriate progenitor cells requires interactions and changes between stem or progenitor cells and their so-called environment niches, and cell surface markers play an important role. However, cementoblast-specific cell surface markers have not yet been fully studied. Through decoy immunization with intact cementoblasts, we developed a series of monoclonal antibodies against cementoblast-specific membrane/extracellular matrix (ECM) molecules. One of these antibodies, the anti-CM3 antibody, recognized an approximate 30 kDa protein in a mouse cementoblast cell line, and the CM3 antigenic molecule accumulated in the cementum region of human tooth roots. Using mass spectrometric analysis, we found that the antigenic molecules recognized by the anti-CM3 antibody were galectin-3. As cementoblastic differentiation progressed, the expression of galectin-3 increased, and it localized at the cell surface. Inhibition of galectin-3 via siRNA and a specific inhibitor showed the complete blockage of cementoblastic differentiation and mineralization. In contrast, ectopic expression of galectin-3 induced cementoblastic differentiation. Galectin-3 interacted with laminin α2 and BMP7, and these interactions were diminished by galectin-3 inhibitors. These results suggested that galectin-3 participates in binding to the ECM component and trapping BMP7 to induce, in a sustained fashion, the upregulation of cementoblastic differentiation. Finally, galectin-3 could be a potential cementoblast-specific cell surface marker, with functional importance in cell-to-ECM interactions.
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Affiliation(s)
- Min-Jeong Choi
- Department of Nanobiomedical Science and BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
| | - Tae Min You
- Department of Advanced General Dentistry, School of Dentistry, Dankook University, Cheonan 31116, Republic of Korea
| | - Young-Joo Jang
- Department of Nanobiomedical Science and BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
- Department of Oral Biochemistry, School of Dentistry, Dankook University, Cheonan 31116, Republic of Korea
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Binaymotlagh R, Chronopoulou L, Palocci C. Peptide-Based Hydrogels: Template Materials for Tissue Engineering. J Funct Biomater 2023; 14:jfb14040233. [PMID: 37103323 PMCID: PMC10145623 DOI: 10.3390/jfb14040233] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 04/28/2023] Open
Abstract
Tissue and organ regeneration are challenging issues, yet they represent the frontier of current research in the biomedical field. Currently, a major problem is the lack of ideal scaffold materials' definition. As well known, peptide hydrogels have attracted increasing attention in recent years thanks to significant properties such as biocompatibility, biodegradability, good mechanical stability, and tissue-like elasticity. Such properties make them excellent candidates for 3D scaffold materials. In this review, the first aim is to describe the main features of a peptide hydrogel in order to be considered as a 3D scaffold, focusing in particular on mechanical properties, as well as on biodegradability and bioactivity. Then, some recent applications of peptide hydrogels in tissue engineering, including soft and hard tissues, will be discussed to analyze the most relevant research trends in this field.
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Affiliation(s)
- Roya Binaymotlagh
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Laura Chronopoulou
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
- Research Center for Applied Sciences to the Safeguard of Environment and Cultural Heritage (CIABC), Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Cleofe Palocci
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
- Research Center for Applied Sciences to the Safeguard of Environment and Cultural Heritage (CIABC), Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
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Kang F, Yi Q, Gu P, Dong Y, Zhang Z, Zhang L, Bai Y. Controlled growth factor delivery system with osteogenic-angiogenic coupling effect for bone regeneration. J Orthop Translat 2022; 31:110-125. [PMID: 34976731 PMCID: PMC8671819 DOI: 10.1016/j.jot.2021.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/01/2021] [Accepted: 11/15/2021] [Indexed: 11/19/2022] Open
Abstract
Objective Bone regeneration involves a coordinated cascade of events that are regulated by several cytokines and growth factors, among which bone morphogenic protein-2 (BMP-2), vascular endothelial growth factor (VEGF) and fibroblast growth factor-2 (FGF-2) play important roles. In this study, we investigated the effects of dual release of the three growth factors on bone regeneration in femur defects. Methods A composite consisting of Gelatin microparticles loaded with VEGF/FGF-2 and poly(lactic-co-glycolic acid)-poly(ethylene glycol)-carboxyl (PLGA-PEG-COOH) microparticles loaded with BMP-2 encapsulated in a nano hydroxyapatite-poly actic-co-glycolic acid (nHA-PLGA) scaffold was prepared for the dual release of the growth factors. Results On the 14th day, decreased release rate of BMP-2 compared with FGF-2 and VEGF was observed. However, after 14 days, compared to FGF-2 and VEGF, BMP-2 showed an increased release rate. Controlled dual release of BMP-2 and VEGF, FGF-2 resulted in a significant osteogenic differentiation of bone mesenchymal stem cells (BMSCs). Moreover, effects of the composite scaffold on functional connection of osteoblast-vascular cells during bone development were evaluated. The synergistic effects of dual delivery of growth factors were shown to promote the expression of VEGF in BMSCs. Increased secretion of VEGF from BMSCs promoted the proliferation and angiogenic differentiation of human umbilical vein endothelial cells (HUVECs) in the co-culture system. At 12 weeks after implantation, blood vessel and bone formation were analyzed by micro-CT and histology. The composite scaffold significantly promoted the formation of blood vessels and new bone in femur defects. Conclusions These findings demonstrate that dual delivery of angiogenic factors and osteogenic factors from Gelatin and PLGA-PEG-COOH microparticles-based composite scaffolds exerted an osteogenic-angiogenic coupling effect on bone regeneration. This approach will inform on the development of appropriate designs of high-performance bioscaffolds for bone tissue engineering.
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Affiliation(s)
- Fei Kang
- Department of Biomedical Materials Science, Third Military Medical University, Chongqing, 400038, China
- School of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Qiying Yi
- School of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Pengcheng Gu
- School of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Yuhan Dong
- School of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Ziyang Zhang
- School of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Lijuan Zhang
- School of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Yan Bai
- School of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
- Corresponding author. School of Pharmacy, Chongqing Medical University, District of Yuzhong, Chongqing, 400016, PR China.
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Current Status on Canine Foetal Fluid and Adnexa Derived Mesenchymal Stem Cells. Animals (Basel) 2021; 11:ani11082254. [PMID: 34438710 PMCID: PMC8388464 DOI: 10.3390/ani11082254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/26/2022] Open
Abstract
Effective standards of care treatment guidelines have been developed for many canine diseases. However, a subpopulation of patients is partially or completely refractory to these protocols, so their owners seek novel therapies such as treatments with MSCs. Although in dogs, as with human medicine, the most studied MSCs sources have been bone marrow and adipose tissue, in recent years, many researchers have drawn attention towards alternative sources, such as foetal adnexa and fluid, since they possess many advantages over bone marrow and adipose tissue. Foetal adnexa and fluid could be considered as discarded material; therefore, sampling is non-invasive, inexpensive and free from ethical considerations. Furthermore, MSCs derived from foetal adnexa and fluid preserve some of the characteristics of the primitive embryonic layers from which they originate and seem to present immune-modulatory properties that make them a good candidate for allo- and xenotransplantation. The aim of the present review is to offer an update on the state of the art on canine MSCs derived from foetal adnexa and fluid focusing on the findings in their clinical setting.
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Commercial Bone Grafts Claimed as an Alternative to Autografts: Current Trends for Clinical Applications in Orthopaedics. MATERIALS 2021; 14:ma14123290. [PMID: 34198691 PMCID: PMC8232314 DOI: 10.3390/ma14123290] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 02/08/2023]
Abstract
In the last twenty years, due to an increasing medical and market demand for orthopaedic implants, several grafting options have been developed. However, when alternative bone augmentation materials mimicking autografts are searched on the market, commercially available products may be grouped into three main categories: cellular bone matrices, growth factor enhanced bone grafts, and peptide enhanced xeno-hybrid bone grafts. Firstly, to obtain data for this review, the search engines Google and Bing were employed to acquire information from reports or website portfolios of important competitors in the global bone graft market. Secondly, bibliographic databases such as Medline/PubMed, Web of Science, and Scopus were also employed to analyse data from preclinical/clinical studies performed to evaluate the safety and efficacy of each product released on the market. Here, we discuss several products in terms of osteogenic/osteoinductive/osteoconductive properties, safety, efficacy, and side effects, as well as regulatory issues and costs. Although both positive and negative results were reported in clinical applications for each class of products, to date, peptide enhanced xeno-hybrid bone grafts may represent the best choice in terms of risk/benefit ratio. Nevertheless, more prospective and controlled studies are needed before approval for routine clinical use.
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Lin R, Vucak-Dzumhur M, Elder GJ. Changes to bone mineral density, the trabecular bone score and hip structural analysis following parathyroidectomy: a case report. BMC Nephrol 2020; 21:513. [PMID: 33243169 PMCID: PMC7690095 DOI: 10.1186/s12882-020-02168-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 11/15/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Reduction in bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA) occurs in secondary hyperparathyroidism associated with chronic kidney disease. BMD generally increases following parathyroidectomy, however longitudinal changes to other DXA-derived parameters, the trabecular bone score (TBS) and hip structural analysis (HSA), have not been described. Postoperative calcium requirements and positive calcium balance raise concerns for an increased risk of vascular calcification. This case illustrates the dramatic increase in BMD that can follow parathyroidectomy in a patient on dialysis, and for the first time demonstrates improvements to HSA parameters and to the TBS. CASE PRESENTATION A 30-year old woman on haemodialysis underwent subtotal parathyroidectomy for secondary hyperparathyroidism. She developed a post-operative 'hungry bone syndrome' requiring substantial calcium and calcitriol supplementation. Six months post-parathyroidectomy, BMD increased by 42% at the lumbar spine, 30% at the femoral neck and 25% at the total proximal femur, with increases sustained over the following 18 months. The TBS increased by 8%. HSA showed a 63% increase in femoral neck cortical thickness and 38% reduction in the buckling ratio, consistent with increased femoral neck stability. The abdominal aortic vascular calcification score (0-24) increased from zero 8-years pre-parathyroidectomy to 2/24 at 18-months post-parathyroidectomy. CONCLUSION BMD losses incurred by secondary hyperparathyroidism recover rapidly after parathyroidectomy, particularly at sites of trabecular bone. Bone architectural parameters, measured as the TBS and by HSA, also improve. Greater BMD gains may be associated with higher post-operative calcium requirements. While bone is the major reservoir for post-parathyroidectomy calcium supplementation, positive calcium balance may contribute to vascular calcification risk.
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Affiliation(s)
- Raymond Lin
- Department of Renal Medicine, Westmead Hospital, Westmead, NSW, 2145, Australia
| | - Mirna Vucak-Dzumhur
- Department of Renal Medicine, Westmead Hospital, Westmead, NSW, 2145, Australia.,University of Notre Dame Medical School, Darlinghurst, NSW, Australia.,Western Sydney University, Campbelltown Campus, Campbelltown, NSW, Australia
| | - Grahame J Elder
- Department of Renal Medicine, Westmead Hospital, Westmead, NSW, 2145, Australia. .,University of Notre Dame Medical School, Darlinghurst, NSW, Australia. .,Garvan Institute of Medical Research, Osteoporosis and Bone Biology Division, Darlinghurst, NSW, Australia.
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Ding X, Zhao H, Li Y, Lee AL, Li Z, Fu M, Li C, Yang YY, Yuan P. Synthetic peptide hydrogels as 3D scaffolds for tissue engineering. Adv Drug Deliv Rev 2020; 160:78-104. [PMID: 33091503 DOI: 10.1016/j.addr.2020.10.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/25/2020] [Accepted: 10/13/2020] [Indexed: 12/13/2022]
Abstract
The regeneration of tissues and organs poses an immense challenge due to the extreme complexity in the research work involved. Despite the tissue engineering approach being considered as a promising strategy for more than two decades, a key issue impeding its progress is the lack of ideal scaffold materials. Nature-inspired synthetic peptide hydrogels are inherently biocompatible, and its high resemblance to extracellular matrix makes peptide hydrogels suitable 3D scaffold materials. This review covers the important aspects of peptide hydrogels as 3D scaffolds, including mechanical properties, biodegradability and bioactivity, and the current approaches in creating matrices with optimized features. Many of these scaffolds contain peptide sequences that are widely reported for tissue repair and regeneration and these peptide sequences will also be discussed. Furthermore, 3D biofabrication strategies of synthetic peptide hydrogels and the recent advances of peptide hydrogels in tissue engineering will also be described to reflect the current trend in the field. In the final section, we will present the future outlook in the design and development of peptide-based hydrogels for translational tissue engineering applications.
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Affiliation(s)
- Xin Ding
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
| | - Huimin Zhao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Yuzhen Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Ashlynn Lingzhi Lee
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Zongshao Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Mengjing Fu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Chengnan Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore.
| | - Peiyan Yuan
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
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Bai Y, Moeinzadeh S, Kim S, Park Y, Lui E, Tan H, Zhao W, Zhou X, Yang YP. Development of PLGA-PEG-COOH and gelatin-based microparticles dual delivery system and E-beam sterilization effects for controlled release of BMP-2 and IGF-1. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION : MEASUREMENT AND DESCRIPTION OF PARTICLE PROPERTIES AND BEHAVIOR IN POWDERS AND OTHER DISPERSE SYSTEMS 2020; 37:2000180. [PMID: 33384477 PMCID: PMC7771709 DOI: 10.1002/ppsc.202000180] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The purpose of this study was to develop a PLGA-PEG-COOH- and gelatin-based microparticles (MPs) dual delivery system for release of BMP-2 and IGF-1. We made and characterized the delivery system based on its morphology, loading capacity, Encapsulation efficiency and release kinetics. Second, we examined the effects of electron beam (EB) sterilization on BMP-2 and IGF-1 loaded MPs and their biological effects. Third, we evaluated the synergistic effect of a controlled dual release of BMP-2 and IGF-1 on osteogenesis of MSCs. Encapsulation efficiency of growth factors into gelatin and PLGA-PEG-COOH MPs are in the range of 64.78% to 76.11%. E-beam sterilized growth factor delivery systems were effective in significantly promoting osteogenesis of MSCs, although E-beam sterilization decreased the bioactivity of growth factors in MPs by approximately 22%. BMP-2 release behavior from gelatin MPs/PEG hydrogel shows a faster release (52.7%) than that of IGF-1 from the PLGA-PEG-COOH MPs/PEG hydrogel (27.3%). The results demonstrate that the gelatin and PLGA-PEG-COOH MPs based delivery system could realize temporal release of therapeutic biomolecules by incorporating different growth factors into distinct microparticles. EB sterilization was an accessible method for sterilizing growth factors loaded carriers, which could pave the way for implementing growth factor delivery in clinical applications.
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Affiliation(s)
- Yan Bai
- Department of Orthopaedic Surgery, Stanford University, CA, USA
- School of Pharmacy, Chongqing Medical University, Chongqing, China
| | | | - Sungwoo Kim
- Department of Orthopaedic Surgery, Stanford University, CA, USA
| | - Youngbum Park
- Department of Orthopaedic Surgery, Stanford University, CA, USA
- Dept. Prosthodontics, Yonsei University College of Dentistry, Seoul 120-752, Korea
| | - Elaine Lui
- Department of Orthopaedic Surgery, Stanford University, CA, USA
- Department of Mechanical Engineering, Stanford University, CA, USA
| | - Hua Tan
- School of Biomedical Informatics, the University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Weiling Zhao
- School of Biomedical Informatics, the University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Xiaobo Zhou
- School of Biomedical Informatics, the University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Yunzhi Peter Yang
- Department of Orthopaedic Surgery, Stanford University, CA, USA
- Department of Materials Science and Engineering, Stanford University, CA, USA
- Department of Bioengineering, Stanford University, CA, USA
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Liu FL, Chen CL, Lai CC, Lee CC, Chang DM. Arecoline suppresses RANKL-induced osteoclast differentiation in vitro and attenuates LPS-induced bone loss in vivo. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 69:153195. [PMID: 32200293 DOI: 10.1016/j.phymed.2020.153195] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 01/13/2020] [Accepted: 02/21/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Areca nut has anti-inflammatory, antiparasitic, antihypertensive, and antidepressant properties. The pathological hallmarks of inflammatory joint diseases are an increased number of osteoclasts and impaired differentiation of osteoblasts, which may disrupt the bone remodeling balance and eventually lead to bone loss. PURPOSE The present study assessed the effects of arecoline, the main alkaloid found in areca nut, on osteoclast and osteoblast differentiation and function. METHOD M-CSF/RANKL-stimulated murine bone marrow-derived macrophages (BMMs) were incubated with several concentrations of arecoline, and TRAP staining and pit formation were assessed to monitor osteoclast formation. Quantitative real-time RT-PCR and western blot analyses were used to analyze the expression of osteoclast-associated genes and signaling pathways. The effects of arecoline on bone were investigated in an in vivo mouse model of lipopolysaccharide (LPS)-induced trabecular bone loss after oral administration of arecoline. Alizarin red S staining and assays to measure ALP activity and the transcription level of osteoblast-related genes were used to evaluate the effects of arecoline on osteoblast differentiation and bone mineralization. RESULTS In a dose-dependent manner, arecoline at concentrations of 50-100 μM reduced both the development of TRAP-positive multinucleated osteoclasts and the formation of resorption pits in M-CSF/RANKL-stimulated BMMs. In M-CSF/RANKL-stimulated BMMs, arecoline also suppressed the expression and translocation of c-Fos and NFATcl, and osteoclast differentiated-related genes via interference with the AKT, MAPK, and NF-kB activation pathways. Femur bone loss and microcomputed tomography parameters were recovered by oral administration of arecoline in the mouse LPS-induced bone loss model. Lastly, arecoline increased ALP activity, bone mineralization, and the expression of osteoblast differentiation-related genes, such as ALP and Runx2, in MC3T3-E1 cells. CONCLUSION Our data suggest that arecoline may attenuate or prevent bone loss by suppressing osteoclastogenesis and promoting osteoblastogenesis. These findings provide evidence supporting arecoline's use as a potential therapeutic agent in bone-loss disorders and diseases.
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Affiliation(s)
- Fei-Lan Liu
- Division of Allergy-Immunology-Rheumatology, Taipei Veterans General Hospital, Taipei, Taiwan; Biobank Management Center of the Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; Department of Biomedical Engineering, National Defense Medical Center, Taipei, Taiwan
| | - Chun-Liang Chen
- Graduate Institutes of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Chien-Chih Lai
- Division of Allergy-Immunology-Rheumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chia-Chung Lee
- Graduate Institutes of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Deh-Ming Chang
- Division of Allergy-Immunology-Rheumatology, Taipei Veterans General Hospital, Taipei, Taiwan; Graduate Institutes of Life Sciences, National Defense Medical Center, Taipei, Taiwan; Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan.
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10
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Yue D, Zhang M, Lu J, Zhou J, Bai Y, Pan J. The rate of fluid shear stress is a potent regulator for the differentiation of mesenchymal stem cells. J Cell Physiol 2019; 234:16312-16319. [PMID: 30784070 DOI: 10.1002/jcp.28296] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 12/15/2018] [Accepted: 12/19/2018] [Indexed: 01/24/2023]
Abstract
We have previously demonstrated that the rate of fluid shear stress (ΔSS) can manipulate the fate of mesenchymal stem cells (MSCs) to osteogenic or chondrogenic cells. However, whether ΔSS is comparable to other two means of induction medium and substrate stiffness that have been proven to be potent in differentiation control is unknown. In this study, we subjected MSCs to 1-7 days of osteogenic or chondrogenic chemical induction, or 1-4 days of 37 or 86 kPa of substrate stiffness induction, followed by 20 min of Fast ΔSS (0-0') or Slow ΔSS (0-2'), which is a laminar FSS that linearly increased from 0 to 10 dyn/cm 2 in 0 (Fast) or 2 min (Slow) and maintained at 10 dyn/cm 2 for a total of 20 min. We found that 20 min of ΔSS could compete with 5 days' chemical and 2 days' substrate stiffness inductions. Our study confirmed that ΔSS is a powerful tool to control the differentiation of MSCs, which stressed the possible application in MSCs linage specification.
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Affiliation(s)
- Danyang Yue
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, China
| | - Mengxue Zhang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, China
| | - Juan Lu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, China
| | - Jin Zhou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, China
| | - Yuying Bai
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, China
| | - Jun Pan
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, China
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Novais A, Lesieur J, Sadoine J, Slimani L, Baroukh B, Saubaméa B, Schmitt A, Vital S, Poliard A, Hélary C, Rochefort GY, Chaussain C, Gorin C. Priming Dental Pulp Stem Cells from Human Exfoliated Deciduous Teeth with Fibroblast Growth Factor-2 Enhances Mineralization Within Tissue-Engineered Constructs Implanted in Craniofacial Bone Defects. Stem Cells Transl Med 2019; 8:844-857. [PMID: 31016898 PMCID: PMC6646701 DOI: 10.1002/sctm.18-0182] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 12/03/2018] [Indexed: 12/17/2022] Open
Abstract
The craniofacial area is prone to trauma or pathologies often resulting in large bone damages. One potential treatment option is the grafting of a tissue-engineered construct seeded with adult mesenchymal stem cells (MSCs). The dental pulp appears as a relevant source of MSCs, as dental pulp stem cells display strong osteogenic properties and are efficient at bone formation and repair. Fibroblast growth factor-2 (FGF-2) and/or hypoxia primings were shown to boost the angiogenesis potential of dental pulp stem cells from human exfoliated deciduous teeth (SHED). Based on these findings, we hypothesized here that these primings would also improve bone formation in the context of craniofacial bone repair. We found that both hypoxic and FGF-2 primings enhanced SHED proliferation and osteogenic differentiation into plastically compressed collagen hydrogels, with a much stronger effect observed with the FGF-2 priming. After implantation in immunodeficient mice, the tissue-engineered constructs seeded with FGF-2 primed SHED mediated faster intramembranous bone formation into critical size calvarial defects than the other groups (no priming and hypoxia priming). The results of this study highlight the interest of FGF-2 priming in tissue engineering for craniofacial bone repair. Stem Cells Translational Medicine 2019;8:844&857.
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Affiliation(s)
- Anita Novais
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
- AP‐HP Département d'OdontologieHôpitaux Universitaires PNVS, Charles Foix et Henri MondorIle de FranceFrance
| | - Julie Lesieur
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
| | - Jérémy Sadoine
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
| | - Lotfi Slimani
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
| | - Brigitte Baroukh
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
| | - Bruno Saubaméa
- Cellular and Molecular Imaging FacilityInserm US25, CNRS UMS 3612, Faculté de Pharmacie de Paris, Université Paris Descartes Sorbonne Paris CitéParisFrance
| | - Alain Schmitt
- Cochin Institute, Transmission Electron Microscopy Platform, INSERM U1016, CNRS UMR8104Université Paris Descartes Sorbonne Paris CitéParisFrance
| | - Sibylle Vital
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
- AP‐HP Département d'OdontologieHôpitaux Universitaires PNVS, Charles Foix et Henri MondorIle de FranceFrance
| | - Anne Poliard
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
| | - Christophe Hélary
- Laboratoire de Chimie de la Matière Condensée de ParisSorbonne Universités, CNRS, Collège de FranceParisFrance
| | - Gaël Y. Rochefort
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
| | - Catherine Chaussain
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
- AP‐HP Département d'OdontologieHôpitaux Universitaires PNVS, Charles Foix et Henri MondorIle de FranceFrance
| | - Caroline Gorin
- EA 2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV)Dental School, Université Paris Descartes Sorbonne Paris CitéMontrougeFrance
- AP‐HP Département d'OdontologieHôpitaux Universitaires PNVS, Charles Foix et Henri MondorIle de FranceFrance
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12
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Non-Ionizing Radiation for Cardiac Human Amniotic Mesenchymal Stromal Cell Commitment: A Physical Strategy in Regenerative Medicine. Int J Mol Sci 2018; 19:ijms19082324. [PMID: 30096780 PMCID: PMC6121454 DOI: 10.3390/ijms19082324] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/03/2018] [Accepted: 08/05/2018] [Indexed: 01/08/2023] Open
Abstract
Cell therapy is an innovative strategy for tissue repair, since adult stem cells could have limited regenerative ability as in the case of myocardial damage. This leads to a local contractile dysfunction due to scar formation. For these reasons, refining strategy approaches for “in vitro” stem cell commitment, preparatory to the “in vivo” stem cell differentiation, is imperative. In this work, we isolated and characterized at molecular and cellular level, human Amniotic Mesenchymal Stromal Cells (hAMSCs) and exposed them to a physical Extremely Low Frequency Electromagnetic Field (ELF-EMF) stimulus and to a chemical Nitric Oxide treatment. Physically exposed cells showed a decrease of cell proliferation and no change in metabolic activity, cell vitality and apoptotic rate. An increase in the mRNA expression of cardiac and angiogenic differentiation markers, confirmed at the translational level, was also highlighted in exposed cells. Our data, for the first time, provide evidence that physical ELF-EMF stimulus (7 Hz, 2.5 µT), similarly to the chemical treatment, is able to trigger hAMSC cardiac commitment. More importantly, we also observed that only the physical stimulus is able to induce both types of commitments contemporarily (cardiac and angiogenic), suggesting its potential use to obtain a better regenerative response in cell-therapy protocols.
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13
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Grafe I, Alexander S, Peterson JR, Snider TN, Levi B, Lee B, Mishina Y. TGF-β Family Signaling in Mesenchymal Differentiation. Cold Spring Harb Perspect Biol 2018; 10:a022202. [PMID: 28507020 PMCID: PMC5932590 DOI: 10.1101/cshperspect.a022202] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem cells (MSCs) can differentiate into several lineages during development and also contribute to tissue homeostasis and regeneration, although the requirements for both may be distinct. MSC lineage commitment and progression in differentiation are regulated by members of the transforming growth factor-β (TGF-β) family. This review focuses on the roles of TGF-β family signaling in mesenchymal lineage commitment and differentiation into osteoblasts, chondrocytes, myoblasts, adipocytes, and tenocytes. We summarize the reported findings of cell culture studies, animal models, and interactions with other signaling pathways and highlight how aberrations in TGF-β family signaling can drive human disease by affecting mesenchymal differentiation.
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Affiliation(s)
- Ingo Grafe
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030
| | - Stefanie Alexander
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030
| | - Jonathan R Peterson
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan 48109
| | - Taylor Nicholas Snider
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109
| | - Benjamin Levi
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan 48109
| | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109
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14
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Kim RY, Seong Y, Cho TH, Lee B, Kim IS, Hwang SJ. Local administration of nuclear factor of activated T cells (NFAT) c1 inhibitor to suppress early resorption and inflammation induced by bone morphogenetic protein-2. J Biomed Mater Res A 2018; 106:1299-1310. [PMID: 29316218 DOI: 10.1002/jbm.a.36332] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/15/2017] [Accepted: 01/05/2018] [Indexed: 11/05/2022]
Abstract
Nuclear factor of activated T cells (NFAT)-c1 is known as a key regulator in osteoclast differentiation and immune response. This study is a follow-up to our previous study showing the antiresorptive activity of VIVIT, a peptide type NFATc1 inhibitor, using absorbable collagen sponge (ACS). This study aimed to investigate the effective concentration range of local VIVIT that suppresses early excessive osteoclast activation and inflammation induced by high-dose recombinant human bone morphogenetic protein (rhBMP)-2 and concomitantly enhances bone healing in a rat critical-sized calvaria defect model. High-dose rhBMP-2 (40 μg/defect) alone significantly increased in vivo osteoclast activation and expression of the inflammatory cytokines interleukin-1β and transforming necrosis factor-α on the scaffold at 7 days after surgery. However, rhBMP-2 had no direct effect on osteoclast activation in vitro. Osteoclast activation by rhBMP-2 was significantly suppressed by combined treatment with VIVIT at concentrations of 75 and 150 μM, but not at 15 μM, whereas suppression of inflammation occurred at all doses of VIVIT. Microcomputed tomography at 4 and 8 weeks after implantation revealed that the combination of rhBMP-2 and VIVIT at 75 μM VIVIT led to a greater bone fraction at the initial defect area, compared with rhBMP-2 alone. These findings revealed that local administration of VIVIT at certain concentrations has multiple positive effects that weaken early excessive osteoimmunological responses and enhance bone healing after rhBMP-2 administration. VIVIT has the potential to expand the therapeutic area of high-dose rhBMP-2 therapy to inflammatory bone loss. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1299-1310, 2018.
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Affiliation(s)
- Ri Youn Kim
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Yeju Seong
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Tae Hyung Cho
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Beomseok Lee
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - In Sook Kim
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Soon Jung Hwang
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea.,Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
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15
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Effects of Immobilizations of rhBMP-2 and/or rhPDGF-BB on Titanium Implant Surfaces on Osseointegration and Bone Regeneration. COATINGS 2017. [DOI: 10.3390/coatings8010017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Wang S, Noda K, Yang Y, Shen Z, Chen Z, Ogata Y. Calcium hydroxide regulates transcription of the bone sialoprotein gene via a calcium-sensing receptor in osteoblast-like ROS 17/2.8 cells. Eur J Oral Sci 2017; 126:13-23. [DOI: 10.1111/eos.12392] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Shuang Wang
- Stomatology College of Tianjn Medical University; Tianjn China
| | - Keisuke Noda
- Department of Periodontology; Nihon University School of Dentistry at Matsudo; Chiba Japan
| | - Yuanyuan Yang
- Stomatology College of Tianjn Medical University; Tianjn China
| | - Zhengyan Shen
- Stomatology College of Tianjn Medical University; Tianjn China
| | - Zhen Chen
- Stomatology College of Tianjn Medical University; Tianjn China
| | - Yorimasa Ogata
- Department of Periodontology; Nihon University School of Dentistry at Matsudo; Chiba Japan
- Research Institute of Oral Science; Nihon University School of Dentistry at Matsudo; Chiba Japan
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17
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Maximiano WMA, da Silva EZM, Santana AC, de Oliveira PT, Jamur MC, Oliver C. Mast Cell Mediators Inhibit Osteoblastic Differentiation and Extracellular Matrix Mineralization. J Histochem Cytochem 2017; 65:723-741. [PMID: 28980852 DOI: 10.1369/0022155417734174] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mast cells are multifunctional immune cells that participate in many important processes such as defense against pathogens, allergic reactions, and tissue repair. These cells perform their functions through the release of a wide variety of mediators. This release occurs mainly through cross-linking IgE (immunoglobulin E) bound to high affinity IgE receptors by multivalent antigens. The abundance of mast cells in connective tissue, surrounding blood vessels, and their involvement in the early stages of bone repair support the possibility of physiological and pathological interactions between mast cells and osteoblasts. However, the participation of mast cell mediators in osteogenesis is not fully understood. Therefore, the objective of this work was to investigate the role of mast cell mediators in the acquisition of the osteogenic phenotype in vitro. The results show that pooled mast cell mediators can affect proliferation, morphology, and cytoskeleton of osteoblastic cells, and impair the activity and expression of alkaline phosphatase as well as the expression of bone sialoprotein. Also, mast cell mediators inhibit the expression of mRNA for those proteins and inhibit the formation and maturation of calcium nodules and consequently inhibit mineralization. Therefore, mast cell mediators can modulate osteogenesis and are potential therapeutic targets for treatments of bone disorders.
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Affiliation(s)
- William Marcatti Amarú Maximiano
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Elaine Zayas Marcelino da Silva
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Ana Carolina Santana
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Paulo Tambasco de Oliveira
- Department of Morphology, Stomatology, and Basic Pathology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Maria Célia Jamur
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Constance Oliver
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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18
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Smith CA, Board TN, Rooney P, Eagle MJ, Richardson SM, Hoyland JA. Human decellularized bone scaffolds from aged donors show improved osteoinductive capacity compared to young donor bone. PLoS One 2017; 12:e0177416. [PMID: 28505164 PMCID: PMC5432108 DOI: 10.1371/journal.pone.0177416] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 04/26/2017] [Indexed: 01/15/2023] Open
Abstract
To improve the safe use of allograft bone, decellularization techniques may be utilized to produce acellular scaffolds. Such scaffolds should retain their innate biological and biomechanical capacity and support mesenchymal stem cell (MSC) osteogenic differentiation. However, as allograft bone is derived from a wide age-range, this study aimed to determine whether donor age impacts on the ability an osteoinductive, acellular scaffold produced from human bone to promote the osteogenic differentiation of bone marrow MSCs (BM-MSC). BM-MSCs from young and old donors were seeded on acellular bone cubes from young and old donors undergoing osteoarthritis related hip surgery. All combinations resulted in increased osteogenic gene expression, and alkaline phosphatase (ALP) enzyme activity, however BM-MSCs cultured on old donor bone displayed the largest increases. BM-MSCs cultured in old donor bone conditioned media also displayed higher osteogenic gene expression and ALP activity than those exposed to young donor bone conditioned media. ELISA and Luminex analysis of conditioned media demonstrated similar levels of bioactive factors between age groups; however, IGF binding protein 1 (IGFBP1) concentration was significantly higher in young donor samples. Additionally, structural analysis of old donor bone indicated an increased porosity compared to young donor bone. These results demonstrate the ability of a decellularized scaffold produced from young and old donors to support osteogenic differentiation of cells from young and old donors. Significantly, the older donor bone produced greater osteogenic differentiation which may be related to reduced IGFBP1 bioavailability and increased porosity, potentially explaining the excellent clinical results seen with the use of allograft from aged donors.
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Affiliation(s)
- Christopher A. Smith
- Divsion of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | | | - Paul Rooney
- National Health Service (NHS) Blood and Tissue Transplant Services, Speke, Liverpool, United Kingdom
| | - Mark J. Eagle
- National Health Service (NHS) Blood and Tissue Transplant Services, Speke, Liverpool, United Kingdom
| | - Stephen M. Richardson
- Divsion of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Judith A. Hoyland
- Divsion of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
- NIHR Manchester Musculoskeletal Biomedical Research Unit, Central Manchester Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
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19
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Gentile P, Ferreira AM, Callaghan JT, Miller CA, Atkinson J, Freeman C, Hatton PV. Multilayer Nanoscale Encapsulation of Biofunctional Peptides to Enhance Bone Tissue Regeneration In Vivo. Adv Healthc Mater 2017; 6. [PMID: 28169513 DOI: 10.1002/adhm.201601182] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/08/2017] [Indexed: 11/09/2022]
Abstract
Bone tissue healing is a dynamic process that is initiated by the recruitment of osteoprogenitor cells followed by their migration, proliferation, differentiation, and development of a mineralizing extracellular matrix. The work aims to manufacture a functionalized porous membrane that stimulates early events in bone healing for initiating a regenerative cascade. Layer-by-layer (LbL) assembly is proposed to modify the surface of osteoconductive electrospun meshes, based on poly(lactic-co-glycolic acid) and nanohydroxyapatite, by using poly(allylamine hydrochloride) and poly(sodium 4-styrenesulfonate) as polyelectrolytes. Molecular cues are incorporated by grafting peptide fragments into the discrete nanolayers. KRSR (lysine-arginine-serine-arginine) sequence is grafted to enhance cell adhesion and proliferation, NSPVNSKIPKACCVPTELSAI to guide bone marrow mesenchymal stem cells differentiation in osteoblasts, and FHRRIKA (phenylalanine-histidine-arginine-arginine-isoleucine-lysine-alanine) to improve mineralization matrix formation. Scanning electron microscopy, infrared spectroscopy, and X-ray photoelectron spectroscopy demonstrate the successful surface functionalization. Furthermore, the peptide incorporation enhances cellular processes, with good viability and significant increase of alkaline phosphatase activity, osteopontin, and osteocalcin. The functionalized membrane induces a favorable in vivo response after implantation for four weeks in nonhealing rat calvarial defect model. It is concluded that the multilayer nanoencapsulation of biofunctional peptides using LbL approach has significant potential as innovative manufacturing technique to improve bone regeneration in orthopedic and craniofacial medical devices.
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Affiliation(s)
- Piergiorgio Gentile
- School of Mechanical and Systems Engineering; Newcastle University; Claremont Road Newcastle upon Tyne NE1 7RU UK
| | - Ana Marina Ferreira
- School of Mechanical and Systems Engineering; Newcastle University; Claremont Road Newcastle upon Tyne NE1 7RU UK
| | - Jill T. Callaghan
- School of Clinical Dentistry; University of Sheffield; 19 Claremont Crescent Sheffield S10 2TA UK
| | - Cheryl A. Miller
- School of Clinical Dentistry; University of Sheffield; 19 Claremont Crescent Sheffield S10 2TA UK
| | - Joss Atkinson
- School of Clinical Dentistry; University of Sheffield; 19 Claremont Crescent Sheffield S10 2TA UK
| | - Christine Freeman
- School of Clinical Dentistry; University of Sheffield; 19 Claremont Crescent Sheffield S10 2TA UK
| | - Paul V. Hatton
- School of Clinical Dentistry; University of Sheffield; 19 Claremont Crescent Sheffield S10 2TA UK
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20
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Liu FL, Chen CL, Lee CC, Wu CC, Hsu TH, Tsai CY, Huang HS, Chang DM. The Simultaneous Inhibitory Effect of Niclosamide on RANKL-Induced Osteoclast Formation and Osteoblast Differentiation. Int J Med Sci 2017; 14:840-852. [PMID: 28824321 PMCID: PMC5562191 DOI: 10.7150/ijms.19268] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/23/2017] [Indexed: 12/21/2022] Open
Abstract
The bone destruction disease including osteoporosis and rheumatoid arthritis are caused by the imbalance between osteoblastogenesis and osteoclastogenesis. Inhibition of the NF-κB pathway was responsible for decreased osteoclastogenesis. Recently many studies indicated that niclosamide, the FDA approved an antihelminth drug, inhibits prostate and breast cancer cells growth by targeting NF-κB signaling pathways. This study evaluated the effects of niclosamide on osteoclast and osteoblast differentiation and function in vitro. In RANKL-induced murine osteoclast precursor cell RAW264.7 and M-CSF/RANKL-stimulated primary murine bone marrow-derived macrophages (BMM), niclosamide dose-dependently inhibited the formation of TRAP-positive multinucleated osteoclasts and resorption pits formation between 0.5uM and 1uM. In addition, niclosamide suppressed the expression of nuclear factor of activated T cells c1 (NFATc1) and osteoclast differentiated-related genes in M-CSF/ RANKL-stimulated BMM by interference with TRAF-6, Erk1/2, JNK and NF-κB activation pathways. However, the cytotoxic effects of niclosamide obviously appeared at the effective concentrations for inhibiting osteoclastogenesis (0.5-1uM) with increase of apoptosis through caspase-3 activation in osteoblast precursor cell line, MC3T3-E1. Niclosamide also inhibited ALP activity, bone mineralization and osteoblast differentiation-related genes expression in MC3T3-E1. Therefore, our findings suggest the new standpoint that niclosamide's effects on bones must be considered before applying it in any therapeutic treatment.
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Affiliation(s)
- Fei-Lan Liu
- Rheumatology/Immunology/Allergy, Taipei Veterans General Hospital, Taiwan, Republic of China.,Graduate Institute of Medical Sciences, National Defense Medical Center, Taiwan, Republic of China
| | - Chun-Liang Chen
- Graduate Institutes of Life Sciences, National Defense Medical Center, Taiwan, Republic of China
| | - Chia-Chung Lee
- Graduate Institutes of Life Sciences, National Defense Medical Center, Taiwan, Republic of China
| | - Cheng-Chi Wu
- Rheumatology/Immunology/Allergy, Taipei Veterans General Hospital, Taiwan, Republic of China.,Graduate Institutes of Life Sciences, National Defense Medical Center, Taiwan, Republic of China
| | - Teng-Hsu Hsu
- Rheumatology/Immunology/Allergy, Taipei Veterans General Hospital, Taiwan, Republic of China
| | - Chang-Youh Tsai
- Rheumatology/Immunology/Allergy, Taipei Veterans General Hospital, Taiwan, Republic of China
| | - Hsu-Shan Huang
- Graduate Institutes of Life Sciences, National Defense Medical Center, Taiwan, Republic of China
| | - Deh-Ming Chang
- Rheumatology/Immunology/Allergy, Taipei Veterans General Hospital, Taiwan, Republic of China.,Graduate Institute of Medical Sciences, National Defense Medical Center, Taiwan, Republic of China.,Graduate Institutes of Life Sciences, National Defense Medical Center, Taiwan, Republic of China
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21
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Ibrahim A, Bulstrode NW, Whitaker IS, Eastwood DM, Dunaway D, Ferretti P. Nanotechnology for Stimulating Osteoprogenitor Differentiation. Open Orthop J 2016; 10:849-861. [PMID: 28217210 PMCID: PMC5299582 DOI: 10.2174/1874325001610010849] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 04/25/2016] [Accepted: 05/31/2016] [Indexed: 12/25/2022] Open
Abstract
Background: Bone is the second most transplanted tissue and due to its complex structure, metabolic demands and various functions, current reconstructive options such as foreign body implants and autologous tissue transfer are limited in their ability to restore defects. Most tissue engineering approaches target osteoinduction of osteoprogenitor cells by modifying the extracellular environment, using scaffolds or targeting intracellular signaling mechanisms or commonly a combination of all of these. Whilst there is no consensus as to what is the optimal cell type or approach, nanotechnology has been proposed as a powerful tool to manipulate the biomolecular and physical environment to direct osteoprogenitor cells to induce bone formation. Methods: Review of the published literature was undertaken to provide an overview of the use of nanotechnology to control osteoprogenitor differentiation and discuss the most recent developments, limitations and future directions. Results: Nanotechnology can be used to stimulate osteoprogenitor differentiation in a variety of way. We have principally classified research into nanotechnology for bone tissue engineering as generating biomimetic scaffolds, a vector to deliver genes or growth factors to cells or to alter the biophysical environment. A number of studies have shown promising results with regards to directing ostroprogenitor cell differentiation although limitations include a lack of in vivo data and incomplete characterization of engineered bone. Conclusion: There is increasing evidence that nanotechnology can be used to direct the fate of osteoprogenitor and promote bone formation. Further analysis of the functional properties and long term survival in animal models is required to assess the maturity and clinical potential of this.
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Affiliation(s)
- A Ibrahim
- Department of Plastic Surgery, Great Ormond Street Hospital For Children NHS Trust, London, UK; Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Hospital Institute of Child Health, University College London, UK; Reconstructive Surgery and Regenerative Medicine Research Group, The Welsh Centre for Burns & Plastic Surgery, Swansea, UK; European Centre of Nano Health, Swansea University Medical School, Swansea, UK
| | - N W Bulstrode
- Department of Plastic Surgery, Great Ormond Street Hospital For Children NHS Trust, London, UK; Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Hospital Institute of Child Health, University College London, UK
| | - I S Whitaker
- Reconstructive Surgery and Regenerative Medicine Research Group, The Welsh Centre for Burns & Plastic Surgery, Swansea, UK; European Centre of Nano Health, Swansea University Medical School, Swansea, UK
| | - D M Eastwood
- Department of Plastic Surgery, Great Ormond Street Hospital For Children NHS Trust, London, UK
| | - D Dunaway
- Department of Plastic Surgery, Great Ormond Street Hospital For Children NHS Trust, London, UK; Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Hospital Institute of Child Health, University College London, UK
| | - P Ferretti
- Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Hospital Institute of Child Health, University College London, UK
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22
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Greenhough J, Papadakis ES, Cutress RI, Townsend PA, Oreffo ROC, Tare RS. Regulation of osteoblast development by Bcl-2-associated athanogene-1 (BAG-1). Sci Rep 2016; 6:33504. [PMID: 27633857 PMCID: PMC5025845 DOI: 10.1038/srep33504] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 08/25/2016] [Indexed: 12/25/2022] Open
Abstract
BCL-2-associated athanogene-1 (BAG-1) is expressed by osteoblast-lineage cells; early embryonic lethality in Bag-1 null mice, however, has limited the investigation of BAG-1 function in osteoblast development. In the present study, bone morphogenetic protein-2/BMP-2-directed osteogenic differentiation of bone marrow stromal cells (BMSCs) of Bag-1+/− (heterozygous) female mice was decreased significantly. Genes crucial for osteogenic differentiation, bone matrix formation and mineralisation were expressed at significantly lower levels in cultures of Bag-1+/− BMSCs supplemented with BMP-2, while genes with roles in inhibition of BMP-2-directed osteoblastogenesis were significantly upregulated. 17-β-estradiol (E2) enhanced responsiveness of BMSCs of wild-type and Bag-1+/− mice to BMP-2, and promoted robust BMP-2-stimulated osteogenic differentiation of BMSCs. BAG-1 can modulate cellular responses to E2 by regulating the establishment of functional estrogen receptors (ERs), crucially, via its interaction with heat shock proteins (HSC70/HSP70). Inhibition of BAG-1 binding to HSC70 by the small-molecule chemical inhibitor, Thioflavin-S, and a short peptide derived from the C-terminal BAG domain, which mediates binding with the ATPase domain of HSC70, resulted in significant downregulation of E2/ER-facilitated BMP-2-directed osteogenic differentiation of BMSCs. These studies demonstrate for the first time the significance of BAG-1-mediated protein-protein interactions, specifically, BAG-1-regulated activation of ER by HSC70, in modulation of E2-facilitated BMP-2-directed osteoblast development.
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Affiliation(s)
- Joanna Greenhough
- Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, United Kingdom
| | - Emmanouil S Papadakis
- Cancer Research UK Centre Cancer Sciences Unit, Somers Building, University of Southampton, Southampton SO16 6YD, United Kingdom
| | - Ramsey I Cutress
- Cancer Research UK Centre Cancer Sciences Unit, Somers Building, University of Southampton, Southampton SO16 6YD, United Kingdom
| | - Paul A Townsend
- Institute of Cancer Sciences, Manchester Cancer Research Centre, University of Manchester, Manchester M13 9WL, United Kingdom
| | - Richard O C Oreffo
- Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, United Kingdom
| | - Rahul S Tare
- Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, United Kingdom
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23
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Cavani F, Ferretti M, Smargiassi A, Palumbo C. PTH(1-34) effects on repairing experimentally drilled holes in rat femur: novel aspects - qualitative vs. quantitative improvement of osteogenesis. J Anat 2016; 230:75-84. [PMID: 27523886 DOI: 10.1111/joa.12533] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2016] [Indexed: 12/26/2022] Open
Abstract
The timetable of effects on bone repair of the active fraction-parathyroid hormone, PTH(1-34), was analytically investigated from the morphometric viewpoint in 3-month-old male Sprague-Dawley rats, whose femurs were drilled at mid-diaphyseal level (transcortical holes). The animals were divided into groups with/without PTH(1-34) administration, and sacrificed at different times (10, 28, 45 days after surgery). The observations reported here need to be framed in the context of our previous investigations regarding bone histogenesis (Ferretti et al. Anat Embryol. 2002; 206: 21-29) in which we demonstrated the occurrence of two successive bone-forming processes during both skeletal organogenesis and bone repair, i.e. static and dynamic osteogenesis: the former (due to stationary osteoblasts, haphazardly grouped in cords) producing preliminary bad quality trabecular bone, the latter (due to typical polarized osteoblasts organized in ordered movable laminae) producing mechanically valid bone tissue. The primary function of static osteogenesis is to provide a rigid scaffold containing osteocytes (i.e. mechano-sensors) for osteoblast laminae acting in dynamic osteogenesis. In the present work, histomorphometric analysis revealed that, already 10 days after drilling, despite the holes being temporarily filled by the same amount of newly formed trabecular bone by static osteogenesis independently of the treatment, the extent of the surface of movable osteoblast-laminae (covering the trabecular surface) was statistically higher in animals submitted to PTH(1-34) administration than in control ones; this datum strongly suggests the effect of PTH(1-34) alone in anticipating the occurrence of dynamic osteogenesis involved in the production of good quality bone (with more ordered collagen texture) more suitable for loading. This study could be crucial in further translational clinical research in humans for defining the best therapeutic strategies to be applied in recovering severe skeletal lesions, particularly as regards the time of PTH(1-34) administration.
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Affiliation(s)
- Francesco Cavani
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze - Sez. Morfologia umana, Università di Modena e Reggio Emilia, Modena, Italy
| | - Marzia Ferretti
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze - Sez. Morfologia umana, Università di Modena e Reggio Emilia, Modena, Italy
| | - Alberto Smargiassi
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze - Sez. Morfologia umana, Università di Modena e Reggio Emilia, Modena, Italy
| | - Carla Palumbo
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze - Sez. Morfologia umana, Università di Modena e Reggio Emilia, Modena, Italy
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Guided bone regeneration is promoted by the molecular events in the membrane compartment. Biomaterials 2016; 84:167-183. [DOI: 10.1016/j.biomaterials.2016.01.034] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 01/18/2016] [Indexed: 11/18/2022]
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Elkhenany H, Amelse L, Caldwell M, Abdelwahed R, Dhar M. Impact of the source and serial passaging of goat mesenchymal stem cells on osteogenic differentiation potential: implications for bone tissue engineering. J Anim Sci Biotechnol 2016; 7:16. [PMID: 26949532 PMCID: PMC4779249 DOI: 10.1186/s40104-016-0074-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 02/19/2016] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Adult mesenchymal stem cells (MSCs) can be conveniently sampled from bone marrow, peripheral blood, muscle, adipose and connective tissue, harvested from various species, including, rodents, dogs, cats, horses, sheep, goats and human beings. The MSCs isolated from adult tissues vary in their morphological and functional properties. These variations are further complicated when cells are expanded by passaging in culture. These differences and changes in MSCs must be considered prior to their application in the clinic or in a basic research study. Goats are commonly used as animal models for bone tissue engineering to test the potential of stem cells for bone regeneration. As a result, goat MSCs isolated from bone marrow or adipose tissue should be evaluated using in vitro assays, prior to their application in a tissue engineering project. RESULTS In this study, we compared the stem cell properties of MSCs isolated from goat bone marrow and adipose tissue. We used quantitative and qualitative assays with a focus on osteogenesis, including, colony forming unit, rate of cell proliferation, tri-lineage differentiation and expression profiling of key signal transduction proteins to compare MSCs from low and high passages. Primary cultures generated from each source displayed the stem cell characteristics, with variations in their osteogenic potentials. Most importantly, low passaged bone marrow MSCs displayed a significantly higher and superior osteogenic potential, and hence, will be the preferred choice for bone tissue engineering in future in vivo experiments. In the bone marrow MSCs, this process is potentially mediated by the p38 MAPK pathway. On the other hand, osteogenic differentiation in the adipose tissue MSCs may involve the p44/42 MAPK pathway. CONCLUSIONS Based on these data, we can conclude that bone marrow and fat-derived MSCs undergo osteogenesis via two distinct signaling pathways. Even though the bone marrow MSCs are the preferred source for bone tissue engineering, the adipose tissue MSCs are an attractive alternative source and undergo osteo-differentiation differently from the bone marrow MSCs and hence, might require a cell-based enhancer/inducer to improve their osteogenic regenerative capacity.
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Affiliation(s)
- Hoda Elkhenany
- Department of Large Animal Clinical Sciences, University of Tennessee, Knoxville, TN 37996 USA ; Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, Edfina, Behera, 22785 Egypt
| | - Lisa Amelse
- Department of Large Animal Clinical Sciences, University of Tennessee, Knoxville, TN 37996 USA
| | - Marc Caldwell
- Department of Large Animal Clinical Sciences, University of Tennessee, Knoxville, TN 37996 USA
| | - Ramadan Abdelwahed
- Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, Edfina, Behera, 22785 Egypt
| | - Madhu Dhar
- Department of Large Animal Clinical Sciences, University of Tennessee, Knoxville, TN 37996 USA
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Moghaddam A, Breier L, Haubruck P, Bender D, Biglari B, Wentzensen A, Zimmermann G. Non-unions treated with bone morphogenic protein 7: introducing the quantitative measurement of human serum cytokine levels as promising tool in evaluation of adjunct non-union therapy. JOURNAL OF INFLAMMATION-LONDON 2016; 13:3. [PMID: 26807043 PMCID: PMC4724145 DOI: 10.1186/s12950-016-0111-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 01/19/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND In this study we sought to determine if application of bone morphogenic protein 7 (BMP-7) promotes physiological bone healing of non-unions and to investigate if serum cytokine analysis may serve as a promising tool in the analysis of adjunct non-union therapy. Therefore we analyzed the influence of BMP-7 application on the serum cytokine expression patterns on patients with impaired bone healing compared to patients that showed proper bone healing. METHODS Our study involved analyzing blood samples from 208 patients with long bone fractures together with patients that subsequently developed non-unions. From this large pool, 15 patients with atrophic non-union were matched to 15 patients with atrophic non-union treated with local application of BMP-7 as well as normal bone healing. Changes in the cytokine expression patterns were monitored during the 1st, 2nd, 4th, 8th, 12th and 52nd week. The patients were followed both clinically and radiologically for the entire duration of the study. Serum cytokine expression levels of transforming growth factor beta (TGF-β), platelet-derived growth factor (PDGF) and basic fibroblast growth factor (bFGF) were analyzed and compared. RESULTS Serum expression of TGF-β were nearly parallel in all three groups, however serum concentrations were significantly higher in patients with proper bone healing and those treated with BMP-7 than in patients with non-unions (p < 0.05). bFGF serum concentrations increased initially in patients with proper bone healing and in those treated with BMP-7. Afterwards, values decreased; bFGF serum concentrations in the BMP-7 group were significantly higher than in the other groups (p < 0.05). PDGF serum concentration levels were nearly parallel in all groups, serum concentrations were significantly higher in patients with proper bone healing and those treated with BMP-7 than in patients with non-unions (p < 0.05). CONCLUSION Treatment with BMP-7 in patients with former non-unions led to similar cytokine expression patterns after treatment as those found in patients with proper bone healing. Our results suggest that treatment with BMP-7 promote healing of non-unions. Furthermore, quantitative measurement of serum cytokine expression is a promising tool for evaluating the effectiveness of additional non-union therapies such as adjunct application of growth factors.
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Affiliation(s)
- Arash Moghaddam
- HTRG - Heidelberg Trauma Research Group, Trauma and Reconstructive Surgery, Center of Orthopaedics, Traumatology and Paraplegiology, Heidelberg University Hospital, Schlierbacher Landstraße 200a, D-69118 Heidelberg, Germany
| | - Lisa Breier
- Department of Orthopaedics and Traumatology, St. Marienkrankenhaus, Salzburger Str. 15, 67067 Ludwigshafen, Germany
| | - Patrick Haubruck
- HTRG - Heidelberg Trauma Research Group, Trauma and Reconstructive Surgery, Center of Orthopaedics, Traumatology and Paraplegiology, Heidelberg University Hospital, Schlierbacher Landstraße 200a, D-69118 Heidelberg, Germany
| | - Daniel Bender
- Department for anesthesiology, Stadtklinik Frankenthal, Elsa-Brändenström Str. 1, D-67227 Frankenthal, Germany
| | - Bahram Biglari
- Berufsgenossenschaftliche Unfallklinik Ludwigshafen, Department of Paraplegiology, Ludwig-Guttmann-Straße-13, D-67071 Ludwigshafen, Germany
| | - Andreas Wentzensen
- Berufsgenossenschaftliche Unfallklinik Ludwigshafen, Trauma Center, Ludwig-Guttmann-Straße-13, D-67071 Ludwigshafen, Germany
| | - Gerald Zimmermann
- Department for Trauma Surgery, Theresienkrankenhaus und St. Hedwigs-Klinik GmbH, Bassermannstr. 1, D-68165 Mannheim, Germany
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Schmidt Y, Simunovic F, Strassburg S, Pfeifer D, Stark GB, Finkenzeller G. miR-126 regulates platelet-derived growth factor receptor-α expression and migration of primary human osteoblasts. Biol Chem 2015; 396:61-70. [PMID: 25205714 DOI: 10.1515/hsz-2014-0168] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 06/26/2014] [Indexed: 12/11/2022]
Abstract
Adequate vascularization is an essential requirement for bone development, fracture healing and bone tissue engineering. We have previously described the coculture of primary human osteoblasts (hOBs) and human endothelial cells (HUVECs), designed to investigate the interactions between these cells. In this system, we showed that cocultivation of these two cell types leads to a downregulation of platelet-derived growth factor receptor-α (PDGFR-α) in hOBs, which was a consequence of reduced mRNA stability. In the current study we investigated the possible involvement of microRNAs in this process. Firstly, we performed a microarray analysis of osteoblastic miRNAs following cocultivation with HUVECs, revealing an upregulation of miR-126. This result was confirmed by RT-qPCR, and we observed that the increase is dependent on direct cell-to-cell contacts. Gain-of-function and loss-of-function experiments showed that miR-126 is a negative regulator of PDGFR-α mRNA. Additionally, migration of hOBs was inhibited by miR-126 overexpression and stimulated by miR-126 inhibition. Addition of PDGFR-α blocking antibody to hOB culture also inhibited hOB migration. There was no effect of miR-126 modulation on osteoblast proliferation, apoptosis rate or differentiation. In conclusion, we report that the miR-126/PDGFR-α system regulates the migratory behavior of human osteoblasts, without exerting effects on cell survival and differentiation.
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28
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Xie Q, Wang Z, Huang Y, Bi X, Zhou H, Lin M, Yu Z, Wang Y, Ni N, Sun J, Wu S, You Z, Guo C, Sun H, Wang Y, Gu P, Fan X. Characterization of human ethmoid sinus mucosa derived mesenchymal stem cells (hESMSCs) and the application of hESMSCs cell sheets in bone regeneration. Biomaterials 2015. [PMID: 26196534 DOI: 10.1016/j.biomaterials.2015.07.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Mesenchymal stem cells (MSCs) have been extensively applied in the field of tissue regeneration. MSCs derived from various tissues exhibit different characteristics. In this study, a cluster of cells were isolated from human ethmoid sinus mucosa membrane and termed as hESMSCs. hESMSCs was demonstrated to have MSC-specific characteristics of self-renewal and tri-lineage differentiation. In particular, hESMSCs displayed strong osteogenic differentiation potential, and also remarkably promoted the proliferation and osteogenesis of rat bone marrow mesenchymal stem cells (rBMSCs) in vitro. Next, hESMSCs were prepared into a cell sheet and combined with a PSeD scaffold seeded with rBMSCs to repair critical-sized calvarial defects in rats, which showed excellent reparative effects. Additionally, ELISA assays revealed that secreted cytokines, such as BMP-2, BMP-4 and bFGF, were higher in the hESMSCs conditioned medium, and immunohistochemistry validated that hESMSCs cell sheet promoted the expression of BMP signaling downstream genes in newly formed bone. In conclusion, hESMSCs were demonstrated to be a class of mesenchymal stem cells that possessed high self-renewal capacity along with strong osteogenic potential, and the cell sheet of hESMSCs could remarkably promote new bone regeneration, indicating that hESMSCs cell sheet could serve as a novel and promising alternative strategy in the management of bone regeneration.
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Affiliation(s)
- Qing Xie
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Zi Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Yazhuo Huang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Xiaoping Bi
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Huifang Zhou
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Ming Lin
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Zhang Yu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Yefei Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Ni Ni
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Jing Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Si Wu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, PR China
| | - Chunyu Guo
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Hao Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Yadong Wang
- Departments of Bioengineering, Chemical Engineering, Surgery, and the McGowan Institute, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, 15261, USA
| | - Ping Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China.
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China.
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Souza TFB, Sakamoto SS, Ferreira GTNM, Gameiro R, Marinho M, de Andrade AL, Cardoso TC. Osteogenic potential of mesenchymal cells derived from canine umbilical cord matrix co-cultured with platelet-rich plasma and demineralized bone matrix. J Vet Sci 2015; 16:381-4. [PMID: 26040617 PMCID: PMC4588025 DOI: 10.4142/jvs.2015.16.3.381] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 04/04/2015] [Indexed: 01/01/2023] Open
Abstract
Canine mesenchymal cells (MSCs) derived from Wharton's jelly were co-cultured, then supplemented or not supplemented with platelet rich plasma (PRP) and demineralized bone matrix (DBM) to verify osteogenic differentiation. Osteoblastic differentiation followed by mineralized bone matrix production was found to be significantly higher (p < 0.05) when MSCs were associated with PRP/DBM in culture after 14-21-days of induction. Osteopontin and osteocalcin gene expression were significantly superior (p < 0.05) under the same culture conditions after 21 days of observation. In conclusion, addition of PRP to DBM co-cultured with MSCs successfully induced osteogenesis in vitro.
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Affiliation(s)
- Talita F B Souza
- Laboratory of Animal Virology and Cell Culture, College of Veterinary Medicine, UNESP-Universidade Estadual Paulista, Aracatuba, SP 16050-680, Brazil
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Matsumura H, Nakayama Y, Takai H, Ogata Y. Effects of interleukin-11 on the expression of human bone sialoprotein gene. J Bone Miner Metab 2015; 33:142-53. [PMID: 24633490 DOI: 10.1007/s00774-014-0576-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Accepted: 02/04/2014] [Indexed: 10/25/2022]
Abstract
Interleukin-11 (IL-11) is a bone marrow stromal fibroblast-derived cytokine with a wide spectrum of activities in different biological systems. IL-11 and IL-6 are two cytokines known to rely on osteoblast-osteoclast communication for their effects on osteoclast differentiation. Bone sialoprotein (BSP) is a mineralized connective tissue-specific protein expressed in differentiated osteoblasts, odontoblasts, and cementoblasts. To determine the molecular basis of the transcriptional regulation of the human BSP gene by IL-11, we conducted real-time polymerase chain reactions (PCR), transient transfection analyses with chimeric constructs of the human BSP gene promoter linked to a luciferase reporter gene, gel mobility shift assays, and a chromatin immunoprecipitation assay using human osteoblast-like Saos2 cells. IL-11 (20 ng/ml) increased BSP, Runx2, and Osterix mRNA levels at 6 h and the alkaline phosphatase (ALP) mRNA level at 12 h in osteoblast-like Saos2 cells. In a transient transfection assay, IL-11 (20 ng/ml, 12 h) increased luciferase activities of constructs between -60LUC and -868LUC including the human BSP gene promoter. Transcriptional stimulations by IL-11 were partially inhibited in the constructs that included 2-bp mutations in the cAMP response element 1 (CRE1, -72 to -79) and CRE2 (-667 to -674). When mutations were made in pairs of CRE1 and CRE2 in -868LUC, the effect of IL-11 on luciferase activity was almost totally abrogated. Transcriptional activities induced by IL-11 were inhibited by protein kinase A, tyrosine kinase, ERK1/2, and PI3-kinase inhibitors. Gel mobility shift analyses showed that IL-11 increased nuclear proteins binding to CRE1 and CRE2. CREB1, phospho-CREB1, c-Fos, and c-Jun antibodies disrupted the formation of CRE1 and CRE2 protein complexes. These data demonstrate that IL-11 stimulates BSP gene transcription via CRE1 and CRE2 elements in the human BSP gene promoter.
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Affiliation(s)
- Hiroyoshi Matsumura
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
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31
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Cirano FR, Togashi AY, Marques MM, Pustiglioni FE, Lima LAPA. Role of rhBMP-2 and rhBMP-7 in the metabolism and differentiation of osteoblast-like cells cultured on chemically modified titanium surfaces. J ORAL IMPLANTOL 2015; 40:655-9. [PMID: 25506660 DOI: 10.1563/aaid-joi-d-12-00071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study analyzed the role of recombinant human bone morphogenetic protein 2 (rhBMP-2) and recombinant human bone morphogenetic protein 7 (rhBMP-7) in the adhesion and differentiation of rat osteoblast-like (osteo-1) cells cultured on chemically modified titanium surfaces. Osteo-1 cells were cultured on chemically modified (modified sandblasted and acid-etched) titanium surfaces in 3 different types of medium: control, medium supplemented with 20 ng/mL rhBMP-2, and medium supplemented with 20 ng/mL rhBMP-7. The following parameters were evaluated: cell adhesion after 24 hours; total protein content; collagen content and alkaline phosphatase (AP) activity after 7, 14, and 21 days; and calcified nodule formation after 21 days. The addition of rhBMP-2 or rhBMP-7 did not influence cell adhesion (P = .1175). Cell differentiation was influenced by rhBMP-2, as demonstrated by a significant increase in collagen content after 7 days of culture (P < .0001) and a significant decrease in AP activity after 21 days (P < .0001). The addition of rhBMP-7 only influenced AP activity, and a significant increase was observed after 21 days (P < .0001). Within the limitations of the study, we conclude that the presence of rhBMP-2 or rhBMP-7 did not influence cell adhesion to chemically modified titanium surfaces but provided an additional stimulus during the differentiation of rat osteo-1 cells cultured on this type of surface.
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32
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Martin SK, Gan ZY, Fitter S, To LB, Zannettino ACW. The effect of the PI3K inhibitor BKM120 on tumour growth and osteolytic bone disease in multiple myeloma. Leuk Res 2015; 39:380-7. [PMID: 25624048 DOI: 10.1016/j.leukres.2014.12.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 12/26/2014] [Accepted: 12/28/2014] [Indexed: 10/24/2022]
Abstract
The plasma cell malignancy multiple myeloma (MM) is unique amongst haematological malignancies in its capacity to cause osteoclast-mediated skeletal destruction. The PI3K/Akt pathway mediates proliferation, survival and drug resistance in MM plasma cells and is also involved in regulating the formation and activity of bone-forming osteoblasts and bone-resorbing osteoclasts. NVP-BKM120 (Buparlisib, Novartis) is a PI3K inhibitor that is currently undergoing clinical evaluation in several tumour settings. In this study, we have examined the anti-tumorigenic effects of BKM120 in an immunocompetent mouse model of MM and its effects on osteoblast and osteoclast formation and function. BKM120 treatment (40 mg/kg) resulted in a significant decrease in serum paraprotein and tumour burden, and μCT analysis of the proximal tibia revealed a significant reduction in the number of osteolytic bone lesions in BKM120-treated animals. BKM120 also mediated a significant increase in serum levels of the osteoblast marker P1NP, and a significant decrease in serum levels of the osteoclast marker TRAcP5. In vitro, BKM120 decreased MM plasma cell proliferation, osteoclast formation and function, and promoted osteoblast formation and function. These findings suggest that, in addition to its anti-tumour properties, BKM120 could be used to treat osteolytic bone disease in MM patients.
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Affiliation(s)
- Sally K Martin
- Myeloma Research Laboratory, School of Medical Sciences, Faculty of Health Science, University of Adelaide, Australia; Centre for Cancer Biology and Hanson Centre for Cancer Research, SA Pathology, Australia; Centre for Stem Cell Research and Centre for Personalised Cancer Medicine, University of Adelaide, Australia; The South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia.
| | - Zhen Ying Gan
- Myeloma Research Laboratory, School of Medical Sciences, Faculty of Health Science, University of Adelaide, Australia; Centre for Stem Cell Research and Centre for Personalised Cancer Medicine, University of Adelaide, Australia; The South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia; School of Pharmacy and Medical Sciences, University of South Australia, Australia
| | - Stephen Fitter
- Myeloma Research Laboratory, School of Medical Sciences, Faculty of Health Science, University of Adelaide, Australia; Centre for Cancer Biology and Hanson Centre for Cancer Research, SA Pathology, Australia; Centre for Stem Cell Research and Centre for Personalised Cancer Medicine, University of Adelaide, Australia; The South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia
| | - Luen B To
- Division of Haematology, Royal Adelaide Hospital, Flinders Medical Centre, Women and Children's Hospital, Queen Elizabeth Hospital and The Lyell McEwin Hospital, Australia
| | - Andrew C W Zannettino
- Myeloma Research Laboratory, School of Medical Sciences, Faculty of Health Science, University of Adelaide, Australia; Centre for Cancer Biology and Hanson Centre for Cancer Research, SA Pathology, Australia; Centre for Stem Cell Research and Centre for Personalised Cancer Medicine, University of Adelaide, Australia; The South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia
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Zhao D, Lei L, Wang S, Nie H. Understanding cell homing-based tissue regeneration from the perspective of materials. J Mater Chem B 2015; 3:7319-7333. [DOI: 10.1039/c5tb01188d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The triad of cell homing-based tissue engineering.
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Affiliation(s)
- Dapeng Zhao
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
| | - Lei Lei
- Department of Orthodontics
- Xiangya Stomatological Hospital
- Central South University
- Changsha 410008
- China
| | - Shuo Wang
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
| | - Hemin Nie
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
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Li A, Xia X, Yeh J, Kua H, Liu H, Mishina Y, Hao A, Li B. PDGF-AA promotes osteogenic differentiation and migration of mesenchymal stem cell by down-regulating PDGFRα and derepressing BMP-Smad1/5/8 signaling. PLoS One 2014; 9:e113785. [PMID: 25470749 PMCID: PMC4254917 DOI: 10.1371/journal.pone.0113785] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 10/29/2014] [Indexed: 12/21/2022] Open
Abstract
Platelet-derived growth factors (PDGFs) play important roles in skeletal development and bone fracture healing, yet how PDGFs execute their functions remains incompletely understood. Here we show that PDGF-AA, but not -AB or -BB, could activate the BMP-Smad1/5/8 pathway in mesenchymal stem cells (MSCs), which requires BMPRIA as well as PDGFRα. PDGF-AA promotes MSC osteogenic differentiation through the BMP-Smad1/5/8-Runx2/Osx axis and MSC migration via the BMP-Smad1/5/8-Twist1/Atf4 axis. Mechanistic studies show that PDGF-AA activates BMP-Smad1/5/8 signaling by feedback down-regulating PDGFRα, which frees BMPRI and allows for BMPRI-BMPRII complex formation to activate smad1/5/8, using BMP molecules in the microenvironment. This study unravels a physical and functional interaction between PDGFRα and BMPRI, which plays an important role in MSC differentiation and migration, and establishes a link between PDGF-AA and BMPs pathways, two essential regulators of embryonic development and tissue homeostasis.
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Affiliation(s)
- Anna Li
- Department of Histology and Embryology, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China
- The Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Xuechun Xia
- The Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China
| | - James Yeh
- The Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Huiyi Kua
- The Institute of Molecular and Cell Biology, Agency for Science, Technology, and Research, Singapore 138632, Singapore
| | - Huijuan Liu
- The Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Aijun Hao
- Department of Histology and Embryology, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China
- * E-mail: (BL); (AH)
| | - Baojie Li
- The Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China
- * E-mail: (BL); (AH)
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Li P, Bai Y, Yin G, Pu X, Huang Z, Liao X, Chen X, Yao Y. Synergistic and sequential effects of BMP-2, bFGF and VEGF on osteogenic differentiation of rat osteoblasts. J Bone Miner Metab 2014; 32:627-35. [PMID: 24306516 DOI: 10.1007/s00774-013-0538-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 10/31/2013] [Indexed: 01/21/2023]
Abstract
In the present study, the effects of bone morphogenetic protein-2 (BMP-2), vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) on regulation of rat osteoblast (ROB) maturation in vitro were investigated. It was found that the proliferation, differentiation and mineralization of ROBs were all dose-dependently increased at particular times in the case of treatment with only one growth factor. To investigate the effects of combined treatment, ROBs were treated with either a single application of a relatively high dose of each growth factor, or binary/triple combined applications of relatively low doses of the growth factors. Osteogenic differentiation was significantly promoted in the triple combination treatment of BMP-2, VEGF and bFGF compared with the single or binary combination treatments. The optimal timing of the triple combination to enhance osteogenesis was also tested. When bFGF and VEGF were added in the early stage, and BMP-2 and VEGF were added in the late stage, osteogenic differentiation of ROBs could be enhanced more effectively. These results could be used to construct bone tissue engineering scaffolds that release growth factors sequentially.
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Affiliation(s)
- Peipei Li
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, People's Republic of China
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36
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Gan ZY, Fitter S, Vandyke K, To LB, Zannettino ACW, Martin SK. The effect of the dual PI3K and mTOR inhibitor BEZ235 on tumour growth and osteolytic bone disease in multiple myeloma. Eur J Haematol 2014; 94:343-54. [PMID: 25179233 DOI: 10.1111/ejh.12436] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2014] [Indexed: 12/17/2022]
Abstract
The plasma cell malignancy multiple myeloma (MM) is unique among haematological malignancies in its capacity to cause osteoclast-mediated skeletal destruction. The PI3K/Akt/mTOR pathway mediates proliferation, survival and drug resistance in MM plasma cells and is also involved in regulating the formation and activity of bone-forming osteoblasts and bone-resorbing osteoclasts. NVP-BEZ235 is a dual pan class I PI3K and mTOR inhibitor that is currently undergoing clinical evaluation in several tumour settings. In this study, we examined the anti-tumorigenic effects of BEZ235 in an immunocompetent mouse model of MM and assessed the effects of BEZ235 on osteoblast and osteoclast formation and function. BEZ235 treatment (50 mg/kg) resulted in a significant decrease in serum paraprotein and tumour burden, and μCT analysis of the proximal tibia revealed a significant reduction in the number of osteolytic bone lesions in BEZ235-treated animals. Levels of the serum osteoblast marker P1NP were significantly higher in BEZ235-treated animals, while levels of the osteoclast marker TRAcP5 were reduced. In vitro, BEZ235 decreased MM plasma cell proliferation, osteoclast formation and function and promoted osteoblast formation and function. These findings suggest that, in addition to its anti-tumour properties, BEZ235 could be useful in treating osteolytic bone disease in MM patients.
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Affiliation(s)
- Zhen Ying Gan
- Myeloma Research Laboratory, School of Medical Sciences, University of Adelaide, Adelaide, SA; Centre for Stem Cell Research, Robinson Institute and Centre for Personalised Cancer Medicine, University of Adelaide, Adelaide, SA; School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA
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37
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Tas AC. The use of physiological solutions or media in calcium phosphate synthesis and processing. Acta Biomater 2014; 10:1771-92. [PMID: 24389317 DOI: 10.1016/j.actbio.2013.12.047] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 12/02/2013] [Accepted: 12/17/2013] [Indexed: 11/29/2022]
Abstract
This review examined the literature to spot uses, if any, of physiological solutions/media for the in situ synthesis of calcium phosphates (CaP) under processing conditions (i.e. temperature, pH, concentration of inorganic ions present in media) mimicking those prevalent in the human hard tissue environments. There happens to be a variety of aqueous solutions or media developed for different purposes; sometimes they have been named as physiological saline, isotonic solution, cell culture solution, metastable CaP solution, supersaturated calcification solution, simulated body fluid or even dialysate solution (for dialysis patients). Most of the time such solutions were not used as the aqueous medium to perform the biomimetic synthesis of calcium phosphates, and their use was usually limited to the in vitro testing of synthetic biomaterials. This review illustrates that only a limited number of research studies used physiological solutions or media such as Earle's balanced salt solution, Bachra et al. solutions or Tris-buffered simulated body fluid solution containing 27mM HCO3(-) for synthesizing CaP, and these studies have consistently reported the formation of X-ray-amorphous CaP nanopowders instead of Ap-CaP or stoichiometric hydroxyapatite (HA, Ca10(PO4)6(OH)2) at 37°C and pH 7.4. By relying on the published articles, this review highlights the significance of the use of aqueous solutions containing 0.8-1.5 mMMg(2+), 22-27mM HCO3(-), 142-145mM Na(+), 5-5.8mM K(+), 103-133mM Cl(-), 1.8-3.75mM Ca(2+), and 0.8-1.67mM HPO4(2-), which essentially mimic the composition and the overall ionic strength of the human extracellular fluid (ECF), in forming the nanospheres of X-ray-amorphous CaP.
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Affiliation(s)
- A Cuneyt Tas
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL 61801, USA.
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38
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Lei L, Wang S, Wu H, Ju W, Peng J, Qahtan ASA, Chen C, Lu Y, Peng J, Zhang X, Nie H. Optimization of release pattern of FGF-2 and BMP-2 for osteogenic differentiation of low-population density hMSCs. J Biomed Mater Res A 2014; 103:252-61. [PMID: 24639043 DOI: 10.1002/jbm.a.35168] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 03/09/2014] [Accepted: 03/13/2014] [Indexed: 01/05/2023]
Abstract
In the modern design, most delivery systems for bone regeneration focus on a single growth factor (GF) or a simple mixture of multiple GFs, overlooking the coordination of proliferation and osteogenesis induced by various factors. In this study, core-shell microspheres with poly-l-lactide core-poly(lactic-co-glycolic acid) shell were fabricated, and two GFs, basic fibroblast growth factor 2 (FGF-2) and bone morphogenetic protein 2 (BMP-2) were encapsulated into the core or/and shell. The effects of different release patterns (parallel or sequential manners) of FGF-2 and BMP-2 from these core-shell microspheres on the osteogenic differentiation of low-population density human mesenchymal stem cells (hMSCs) were investigated and the temporal organization of GF release was optimized. In vitro experiments suggested that induction of osteogenic differentiation of low-population density hMSCs by the sequential delivery of FGF-2 followed by BMP-2 from the core-shell microspheres (group S2) was much more efficient than that by the parallel release of the two factors from uniform microspheres (group U). The osteogenic induction by the sequential delivery of BMP-2 followed by FGF-2 from core-shell microspheres (group S1) was even worse than that from microspheres loaded with BMP-2 in both core and shell (group B), although comparable to the cases of parallel delivery of dual GFs (group P). This study showed the advantages of group S2 microspheres in inducing osteogenic differentiation of low-population density hMSCs and the necessity of time sequence studies in tissue engineering while multiple GFs are involved.
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Affiliation(s)
- Lei Lei
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
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Patntirapong S, Singhatanadgit W, Arphavasin S. Alendronate-induced atypical bone fracture: evidence that the drug inhibits osteogenesis. J Clin Pharm Ther 2014; 39:349-53. [PMID: 24661151 DOI: 10.1111/jcpt.12149] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 02/11/2014] [Indexed: 11/27/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Alendronate (ALN) is used for the treatment of post-menopausal osteoporosis. By reducing bone turnover, it increases bone mineral density. However, recent reports suggest an increased risk of atypical bone fractures after long-term ALN administration. Despite its well-known anti-osteoclastic activity, it is unclear whether ALN also suppresses human mesenchymal stem cell (hMSC)-mediated osteogenesis, thus possibly resulting in atypical bone fragility. We hypothesized that ALN does this and we look at its in vitro effects on osteogenesis. METHODS Morphological analysis, reverse transcriptase polymerase chain reaction, cell viability, alkaline phosphatase (ALP) activity and mineralization assays were investigated in hMSCs treated with a wide range of ALN. RESULTS AND DISCUSSION After treatment with high concentrations of ALN for 3 and 7 days, cell viability was significantly reduced and cell morphology was altered. Osteogenic differentiation of hMSCs was also substantially suppressed as demonstrated by decreased ALP activity although ALN did not affect osteogenic-related genes tested. Furthermore, ALN at all concentrations tested drastically inhibited alizarin red S-positive mineralized matrix. WHAT IS NEW AND CONCLUSION ALN has a strong inhibitory effect on hMSC-mediated osteogenesis by suppressing cell proliferation, osteoblast differentiation and function. The insight gained may help in the development of safer alternatives.
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Kang KS, Hong JM, Jeong YH, Seol YJ, Yong WJ, Rhie JW, Cho DW. Combined effect of three types of biophysical stimuli for bone regeneration. Tissue Eng Part A 2014; 20:1767-77. [PMID: 24446961 DOI: 10.1089/ten.tea.2013.0157] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Pretreatment using various types of biophysical stimuli could provide appropriate potential to cells during construction of the engineered tissue in vitro. We hypothesized that multiple combinations of these biophysical stimuli could enhance osteogenic differentiation in vitro and bone formation in vivo. Cyclic strain, an electromagnetic field, and ultrasound were selected and combined as effective stimuli for osteogenic differentiation using a developed bioreactor. Here we report the experimental evaluation of the osteogenic effects of various combinations of three different biophysical stimuli in vitro and in vivo using human adipose-derived stem cells (ASCs). Osteogenic differentiation of ASCs was accelerated by multiple-combination biophysical stimulation in vitro. However, both single stimulation and double-combination stimulation were sufficient to accelerate bone regeneration in vivo, while the osteogenic marker expression of those groups was not as high as that of triple-combination stimulation in vitro. We inferred from these data that ASCs appropriately differentiated into the osteogenic lineage by biophysical stimulation could be a better option for accelerating bone formation in vivo than relatively undifferentiated or completely differentiated ASCs. Although many questions remain about the mechanisms of combined effects of various biophysical stimuli, this approach could be a more powerful tool for bone tissue regeneration.
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Affiliation(s)
- Kyung Shin Kang
- 1 Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, Republic of Korea
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41
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Biver E, Thouverey C, Magne D, Caverzasio J. Crosstalk between tyrosine kinase receptors, GSK3 and BMP2 signaling during osteoblastic differentiation of human mesenchymal stem cells. Mol Cell Endocrinol 2014; 382:120-130. [PMID: 24060635 DOI: 10.1016/j.mce.2013.09.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 08/16/2013] [Accepted: 09/16/2013] [Indexed: 10/26/2022]
Abstract
Bone morphogenic proteins (BMPs) promote mesenchymal stem cell (MSC) osteogenic differentiation, whereas platelet derived growth factor (PDGF) and fibroblast growth factor (FGF) activate their proliferation through receptors tyrosine kinase (RTK). The effects of PDGF or FGF receptor signaling pathway on BMP2-induced osteoblastic differentiation was investigated in human MSC (HMSC). Inhibition of PDGF or/and FGF receptors enhanced BMP2-induced alkaline phosphatase (ALP) activity, expression of Osterix, ALP and Bone sialoprotein, and matrix calcification. These effects were associated with increased Smad-1 activity, indicating that mitogenic factors interfere with Smad signaling in HMSC differentiation. RTK activate MAPK and inhibit GSK3 through the PI3K/Akt pathway. Biochemical analysis indicated that MAPK JNK and GSK3 especially are potential signaling molecules regulating BMP-induced osteoblastic HMSC differentiation. These observations highlight that the osteogenic effects of BMP2 are modulated by mitogenic factors acting through RTK.
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Affiliation(s)
- Emmanuel Biver
- Service of Bone Diseases, Department of Internal Medicine Specialties, University Hospital of Geneva, CH-1211 Geneva 14, Switzerland; Pathophysiology of Inflammatory Bone Diseases, PMOI EA4490, Boulogne/Mer, France
| | - Cyril Thouverey
- Service of Bone Diseases, Department of Internal Medicine Specialties, University Hospital of Geneva, CH-1211 Geneva 14, Switzerland
| | - David Magne
- Institut of Molecular and Supramolecular Biochemistry, UMR, CNRS 5246, University of Lyon 1, 69622 Villeurbanne Cedex, France
| | - Joseph Caverzasio
- Service of Bone Diseases, Department of Internal Medicine Specialties, University Hospital of Geneva, CH-1211 Geneva 14, Switzerland.
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Friis TE, Stephenson S, Xiao Y, Whitehead J, Hutmacher DW. A polymerase chain reaction-based method for isolating clones from a complimentary DNA library in sheep. Tissue Eng Part C Methods 2014; 20:780-9. [PMID: 24447069 DOI: 10.1089/ten.tec.2013.0099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The sheep (Ovis aries) is favored by many musculoskeletal tissue engineering groups as a large animal model because of its docile temperament and ease of husbandry. The size and weight of sheep are comparable to humans, which allows for the use of implants and fixation devices used in human clinical practice. The construction of a complimentary DNA (cDNA) library can capture the expression of genes in both a tissue- and time-specific manner. cDNA libraries have been a consistent source of gene discovery ever since the technology became commonplace more than three decades ago. Here, we describe the construction of a cDNA library using cells derived from sheep bones based on the pBluescript cDNA kit. Thirty clones were picked at random and sequenced. This led to the identification of a novel gene, C12orf29, which our initial experiments indicate is involved in skeletal biology. We also describe a polymerase chain reaction-based cDNA clone isolation method that allows the isolation of genes of interest from a cDNA library pool. The techniques outlined here can be applied in-house by smaller tissue engineering groups to generate tools for biomolecular research for large preclinical animal studies and highlights the power of standard cDNA library protocols to uncover novel genes.
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Affiliation(s)
- Thor Einar Friis
- 1 Regenerative Medicine Group, Institute of Health and Biomedical Innovation, Queensland University of Technology , Brisbane, Queensland, Australia
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43
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Uematsu K, Nagata M, Kawase T, Suzuki K, Takagi R. Application of stem-cell media to explant culture of human periosteum: An optimal approach for preparing osteogenic cell material. J Tissue Eng 2013; 4:2041731413509646. [PMID: 24555010 PMCID: PMC3927863 DOI: 10.1177/2041731413509646] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 09/25/2013] [Indexed: 11/17/2022] Open
Abstract
As part of our clinical tests on bone regeneration using cultured periosteal sheets, here, we prepared cultured periosteal sheets in two types of stem-cell culture media, STK1 and STK3. Human periosteum was expanded either in 1% human serum–supplemented STK1 for 28 days, in 1% human serum–supplemented STK1 for 14 days followed by 1% human serum–supplemented STK3 for 14 days (1% human serum–supplemented STK1+3), or in 10% fetal bovine serum–supplemented Medium 199 for 28 days (control). Cultured periosteal sheet diameter and DNA content were significantly higher, and the multilayer structure was prominent in 1% human serum–supplemented STK1 and 1% human serum–supplemented STK1+3. The messenger RNA of osteoblastic markers was significantly upregulated in 1% human serum–supplemented STK1+3. Osteopontin-immunopositive staining and mineralization were evident across a wide area of the cultured periosteal sheet in 1% human serum–supplemented STK1+3. Subcutaneous implantation in nude mice following expansion in 1% human serum–supplemented STK1+3 produced the highest cultured periosteal sheet osteogenic activity. Expansion in 1% human serum–supplemented STK1+3 successfully induced cultured periosteal sheet growth while retaining osteogenic potential, and subsequent osteoblastic induction promoted the production of homogeneous cell material.
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Affiliation(s)
- Kohya Uematsu
- Division of Oral and Maxillofacial Surgery, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan ; Division of Oral Bioengineering, Department of Tissue Regeneration and Reconstitution, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Masaki Nagata
- Division of Oral and Maxillofacial Surgery, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Department of Tissue Regeneration and Reconstitution, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kenji Suzuki
- Department of Gastroenterology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ritsuo Takagi
- Division of Oral and Maxillofacial Surgery, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Hu B, El Haj AJ, Dobson J. Receptor-targeted, magneto-mechanical stimulation of osteogenic differentiation of human bone marrow-derived mesenchymal stem cells. Int J Mol Sci 2013; 14:19276-93. [PMID: 24065106 PMCID: PMC3794833 DOI: 10.3390/ijms140919276] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/02/2013] [Accepted: 09/05/2013] [Indexed: 11/16/2022] Open
Abstract
Mechanical cues are employed to promote stem cell differentiation and functional tissue formation in tissue engineering and regenerative medicine. We have developed a Magnetic Force Bioreactor (MFB) that delivers highly targeted local forces to cells at a pico-newton level, utilizing magnetic micro- and nano-particles to target cell surface receptors. In this study, we investigated the effects of magnetically targeting and actuating specific two mechanical-sensitive cell membrane receptors-platelet-derived growth factor receptor α (PDGFRα) and integrin ανβ3. It was found that a higher mineral-to-matrix ratio was obtained after three weeks of magneto-mechanical stimulation coupled with osteogenic medium culture by initially targeting PDGFRα compared with targeting integrin ανβ3 and non-treated controls. Moreover, different initiation sites caused a differentiated response profile when using a 2-day-lagged magneto-mechanical stimulation over culture periods of 7 and 12 days). However, both resulted in statistically higher osteogenic marker genes expression compared with immediate magneto-mechanical stimulation. These results provide insights into important parameters for designing appropriate protocols for ex vivo induced bone formation via magneto-mechanical actuation.
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Affiliation(s)
- Bin Hu
- Institute of Science and Technology in Medicine, Guy Hilton Research Center, Keele University, Thornburrow Drive, Hartshill, Stoke on Trent, ST4 7QB, UK; E-Mails: (B.H.); (A.J.E.H.)
| | - Alicia J El Haj
- Institute of Science and Technology in Medicine, Guy Hilton Research Center, Keele University, Thornburrow Drive, Hartshill, Stoke on Trent, ST4 7QB, UK; E-Mails: (B.H.); (A.J.E.H.)
| | - Jon Dobson
- J. Crayton Puritt Family Department of Biomedical Engineering, Department of Materials Science and Engineering, Institute of Cell Engineering and Regenerative Medicine (ICERM), University of Florida, Gainesville, FL 32611, USA
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-352-273-9222; Fax: +1-352-273-9221
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Hutton DL, Moore EM, Gimble JM, Grayson WL. Platelet-derived growth factor and spatiotemporal cues induce development of vascularized bone tissue by adipose-derived stem cells. Tissue Eng Part A 2013; 19:2076-86. [PMID: 23582144 DOI: 10.1089/ten.tea.2012.0752] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Vasculature is essential to the functional integration of a tissue-engineered bone graft to enable sufficient nutrient delivery and viability after implantation. Native bone and vasculature develop through intimately coupled, tightly regulated spatiotemporal cell-cell signaling. The complexity of these developmental processes has been a challenge for tissue engineers to recapitulate, resulting in poor codevelopment of both bone and vasculature within a unified graft. To address this, we cultured adipose-derived stromal/stem cells (ASCs), a clinically relevant, single cell source that has been previously investigated for its ability to give rise to vascularized bone grafts, and studied the effects of initial spatial organization of cells, the temporal addition of growth factors, and the presence of exogenous platelet-derived growth factor-BB (PDGF-BB) on the codevelopment of bone and vascular tissue structures. Human ASCs were aggregated into multicellular spheroids via the hanging drop method before encapsulation and subsequent outgrowth in fibrin gels. Cellular aggregation substantially increased vascular network density, interconnectivity, and pericyte coverage compared to monodispersed cultures. To form robust vessel networks, it was essential to culture ASCs in a purely vasculogenic medium for at least 8 days before the addition of osteogenic cues. Physiologically relevant concentrations of exogenous PDGF-BB (20 ng/mL) substantially enhanced both vascular network stability and osteogenic differentiation. Comparisons with the bone morphogenetic protein-2, another pro-osteogenic and proangiogenic growth factor, indicated that this potential to couple the formation of both lineages might be unique to PDGF-BB. Furthermore, the resulting tissue structure demonstrated the close association of mineral deposits with pre-existing vascular structures that have been described for developing tissues. This combination of a single cell source with a potent induction factor used at physiological concentrations can provide a clinically relevant approach to engineering highly vascularized bone grafts.
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Affiliation(s)
- Daphne L Hutton
- Department of Biomedical Engineering, Translational Tissue Engineering Center, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21287, USA
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Yang X, Lu Y, Li Z, Wang Y, Zhao F, Han J. Low concentrations of zoledronic acid are better at regulating bone formation and repair. Intractable Rare Dis Res 2013; 2:18-23. [PMID: 25343096 PMCID: PMC4204573 DOI: 10.5582/irdr.2013.v2.1.18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Revised: 01/20/2013] [Accepted: 01/25/2013] [Indexed: 12/13/2022] Open
Abstract
The purpose of this study was to investigate optimal concentrations of zoledronic acid (ZA) in terms of their effect on the proliferation, differentiation, and mineralization of primary osteoblasts (OBs) and fibroblasts (FBs). Primary OBs and FBs isolated from patients with clinical osteogenesis imperfecta (OI) and developmental dysplasia of the hip (DDH) were treated in vitro with serial concentrations of ZA ranging from 10(-3) M to 10(-13) M. An MTT ((3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide)) colorimetric assay, flow cytometry, alkaline phosphatase (ALP) determination activity, and alizarin red staining were used to measure the proliferation, differentiation, and mineralization of cells. The MTT assay indicated that high concentrations of ZA may be toxic to cultured cells. No obvious inhibition was observed with a ZA concentration of 10(-7) M to 10(-10) M. Proliferation was evident with a ZA concentration below 10(-11) M (p < 0.05). Flow cytometry analysis revealed that cell cycle was arrested at G1/G0 stage with a ZA concentration ranging from 10(-10) M to 10(-8) M. ZA did not enhance ALP activity at a concentration of 10(-8) M or 10(-10) M. Alizarin red staining indicated the mineralization of primary OBs with a low concentration of ZA (10(-12) M). In conclusion, this in vitro study indicated that ZA-mediated cell proliferation was dose-dependent and that ZA did not inhibit cell proliferation at concentrations below 10(-8) M. These findings suggest low concentrations of ZA have more of an effect on cell differentiation and mineralization, so low concentrations are better at regulating bone formation and repair.
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Affiliation(s)
- Xiaomeng Yang
- Shandong Medicinal Biotechnology Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Key Laboratory for Rare Diseases of Shandong Province, Shandong Academy of Medical Sciences, Ji'nan, Shandong, China
- Ji'nan University Shandong Academy of Medical Sciences College of Life Science and Medicine, Ji'nan, Shandong, China
| | - Yanqin Lu
- Shandong Medicinal Biotechnology Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Key Laboratory for Rare Diseases of Shandong Province, Shandong Academy of Medical Sciences, Ji'nan, Shandong, China
| | | | - Yanzhou Wang
- Pediatric Orthopedics, Shandong Provincial Hospital, Ji'nan, Shandong, China
| | - Fei Zhao
- Shandong Medicinal Biotechnology Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Key Laboratory for Rare Diseases of Shandong Province, Shandong Academy of Medical Sciences, Ji'nan, Shandong, China
- Ji'nan University Shandong Academy of Medical Sciences College of Life Science and Medicine, Ji'nan, Shandong, China
| | - Jinxiang Han
- Shandong Medicinal Biotechnology Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Key Laboratory for Rare Diseases of Shandong Province, Shandong Academy of Medical Sciences, Ji'nan, Shandong, China
- Address correspondence to: Dr. Jinxiang Han, Shandong Academy of Medical Sciences, No.18877 Jing-shi Road, Ji'nan, 250062, Shandong, China. E-mail:
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Najy AJ, Jung YS, Won JJ, Conley-LaComb MK, Saliganan A, Kim CJ, Heath E, Cher ML, Bonfil RD, Kim HRC. Cediranib inhibits both the intraosseous growth of PDGF D-positive prostate cancer cells and the associated bone reaction. Prostate 2012; 72:1328-38. [PMID: 22213159 PMCID: PMC3369116 DOI: 10.1002/pros.22481] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 12/04/2011] [Indexed: 12/31/2022]
Abstract
BACKGROUND The major cause of death in prostate cancer (PCa) cases is due to distant metastatic lesions, with the bone being the most prevalent site for secondary colonization. Utilization of small molecule inhibitors to treat bone metastatic PCa have had limited success either as monotherapies or in combination with other chemotherapeutics due to intolerable toxicities. In the current study, we developed a clinically relevant in vivo intraosseous tumor model overexpressing the platelet-derived growth factor D (PDGF D) to test the efficacy of a newly characterized vascular endothelial growth factor receptor (VEGFR)/PDGFR inhibitor, cediranib (also called AZD2171). METHODS An intratibial-injection model was established utilizing DU145 cells with or without increased PDGF D expression. Tumor-bearing mice were treated by daily gavage administration of cediranib and/or weekly i.p. injection of docetaxel for 7 weeks. Tibiae were monitored by in vivo/ex vivo X-rays and histomorphometry analysis was performed to estimate tumor volume and tumor-associated trabecular bone growth. RESULTS Cediranib reduced intraosseous growth of prostate tumors as well as tumor-associated bone responses. When compared to the standard chemotherapeutic agent docetaxel, cediranib exhibited a stronger inhibition of tumor-associated bone response. The efficacy of cediranib was further enhanced when the drug was co-administered with docetaxel. Importantly, the therapeutic benefits of cediranib and docetaxel are more prominent in intraosseous prostate tumors overexpressing PDGF D. CONCLUSION These novel findings support the utilization of cediranib, either alone or in combination with docetaxel, to treat bone metastatic PCa exhibiting PDGF D expression.
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Affiliation(s)
- Abdo J. Najy
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - Young Suk Jung
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - Joshua J. Won
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - M. Katie Conley-LaComb
- Department of Urology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - Allen Saliganan
- Department of Urology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - Chong Jai Kim
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - Elisabeth Heath
- Department of Oncology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - Michael L. Cher
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
- Department of Urology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - R. Daniel Bonfil
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
- Department of Urology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - Hyeong-Reh Choi Kim
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
- To whom correspondence should be addressed: Department of Pathology, Wayne State University School of Medicine, 540 E. Canfield, Detroit, MI 48201, USA, Tel: 313-577-2407, Fax: 313-577-0057,
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Muthukuru M. Bone morphogenic protein-2 induces apoptosis and cytotoxicity in periodontal ligament cells. J Periodontol 2012; 84:829-38. [PMID: 22839695 DOI: 10.1902/jop.2012.120339] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Periodontal ligament (PDL) expresses endogenous growth factors, such as bone morphogenic proteins (BMPs), which facilitate maintenance of tissue homeostasis. Inflammatory conditions, such as chronic periodontitis, could disrupt this homeostasis, and physiologic levels of growth factors may be insufficient to maintain tissue homeostasis. BMPs facilitate periodontal bone regeneration but also are implicated in causing tooth ankylosis and root resorption. The underlying mechanism of tooth ankylosis is unclear. However, there is evidence that BMPs induce apoptosis in progenitor cells. Little is known about BMP-induced cytotoxicity in PDL cells, which contain a population of progenitor cells. The aim of this study is to determine BMP2-induced osteogenic mediators and cytotoxic effects in PDL cells and compare these cells to osteoblasts. METHODS Human PDL cells and primary osteoblasts were stimulated with doses of 1 to 200 ng/mL BMP2. Expression of alkaline phosphatase (ALP), in vitro mineralization along with osteonectin expression, induction of apoptosis, and cytotoxicity assays were performed. RESULTS PDL cells and osteoblasts upregulated ALP and in vitro mineralization in a dose-dependent manner with BMP2 stimulation. However, at BMP2 concentrations >10 ng/mL, ALP, in vitro mineralization, and osteonectin were downregulated in PDL cells. Relative to osteoblasts, PDL cells were susceptible to apoptosis and cytotoxicity with 10 times lower concentration of BMP2. CONCLUSIONS Relative to osteoblasts, PDL cells are susceptible to BMP2-induced cytotoxicity. BMP-induced tooth ankylosis is controversial and is poorly understood. Disruption of PDL homeostasis by BMP-induced apoptosis could play a role in tooth ankylosis.
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Affiliation(s)
- Manoj Muthukuru
- Department of Periodontics, University of Washington, Seattle, WA 98195-7444, USA.
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Muthukuru M, Sun J. Doxycycline counteracts bone morphogenic protein 2-induced osteogenic mediators. J Periodontol 2012; 84:656-65. [PMID: 22799755 DOI: 10.1902/jop.2012.120338] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Microbial colonization during wound healing may exaggerate the inflammatory response and could adversely affect the outcome of periodontal regeneration. Bone morphogenic proteins (BMPs) directly augment bone regeneration. Interestingly, inhibitors of tissue collagenases, such as sub-antimicrobial-dose doxycycline, also indirectly promote hard-tissue regeneration. In this study, it is hypothesized that BMP2-mediated bone regeneration would be positively affected by simultaneous treatment of sub-antimicrobial-dose doxycycline. METHODS Human periodontal ligament (PDL) cells were stimulated with: 1) 10 ng/mL BMP2; 2) 1 μg/mL doxycycline; or 3) a combination of the two. The expressions of alkaline phosphatase, osteocalcin, osteonectin, and osteopontin were analyzed along with in vitro mineralized nodule formation and calcium accumulation. RESULTS BMP2 was a potent inducer of osteocalcin/osteopontin (statistically significant at P <0.01) and osteonectin in PDL cells relative to stimulation with doxycycline. However, doxycycline relative to BMP2 (statistically significant at P <0.001) upregulated the expression of alkaline phosphatase and in vitro mineralized nodule formation. Contrary to expected results, combined BMP2 and doxycycline induced a statistically significant (P <0.001) downregulation of alkaline phosphatase, osteocalcin, osteonectin/osteopontin, and in vitro mineralized nodule formation compared to stimulation with either BMP2 or doxycycline alone. CONCLUSIONS Combined treatment of BMP2 and doxycycline in PDL cells counteracts the osteogenic mediators. Molecular interaction of growth factors should be explored before using a combination of these biologic molecules. It is important and clinically relevant to determine whether tetracycline and its other derivatives also counteract BMP functions. Animal models should be used to confirm these in vitro results.
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Affiliation(s)
- Manoj Muthukuru
- Department of Periodontics, University of Washington, Seattle, WA, USA.
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