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Liu L, Hou S, Xu G, Gao J, Mu J, Gao M, He J, Su X, Yang Z, Liu Y, Chen T, Dong Z, Cheng L, Shi Z. Evaluation of osteogenic properties of a novel injectable bone-repair material containing strontium in vitro and in vivo. Front Bioeng Biotechnol 2024; 12:1390337. [PMID: 38707496 PMCID: PMC11069309 DOI: 10.3389/fbioe.2024.1390337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/11/2024] [Indexed: 05/07/2024] Open
Abstract
Objective: This study aims to develop and evaluate the biocompatibility and osteogenic potential of a novel injectable strontium-doped hydroxyapatite bone-repair material. Methods: The properties of strontium-doped hydroxyapatite/chitosan (Sr-HA/CS), hydroxyapatite/chitosan (HA/CS) and calcium phosphate/chitosan (CAP/CS) were assessed following their preparation via physical cross-linking and a one-step simplified method. Petri dishes containing Escherichia coli and Staphylococcus epidermidis were inoculated with the material for in vitro investigations. The material was also co-cultured with stem cells derived from human exfoliated deciduous teeth (SHEDs), to assess the morphology and proliferation capability of the SHEDs, Calcein-AM staining and the Cell Counting Kit-8 assay were employed. Osteogenic differentiation of SHEDs was determined using alkaline phosphatase (ALP) staining and Alizarin Red staining. For in vivo studies, Sr-HA/CS was implanted into the muscle pouch of mice and in a rat model of ovariectomy-induced femoral defects. Hematoxylin-eosin (HE) staining was performed to determine the extent of bone formation and defect healing. The formation of new bone was determined using Masson's trichrome staining. The osteogenic mechanism of the material was investigated using Tartrate-resistant acid phosphatase (TRAP) staining and immunohistochemical studies. Results: X-ray diffraction (XRD) and energy-dispersive spectroscopy (EDS) showed that strontium was successfully doped into HA. The Sr-HA/CS material can be uniformly squeezed using a syringe with a 13% swelling rate. Sr-HA/CS had a significant antibacterial effect against both E. coli and S. epidermidis (p < 0.05), with a stronger effect observed against E. coli. The Sr-HA/CS significantly improved cell proliferation and cell viability in vitro studies (p < 0.05). Compared to CAP/CS and CS, Sr-HA/CS generated a substantially greater new bone area during osteoinduction experiments (p < 0.05, p < 0.001). The Sr-HA/CS material demonstrated a significantly higher rate of bone repair in the bone defeat studies compared to the CAP/CS and CS materials (p < 0.01). The OCN-positive area and TRAP-positive cells in Sr-HA/CS were greater than those in control groups (p < 0.05). Conclusion: A novel injectable strontium-doped HA bone-repair material with good antibacterial properties, biocompatibility, and osteoinductivity was successfully prepared.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Lijia Cheng
- Clinical Medical College, Affiliated Hospital, School of Basic Medical Sciences of Chengdu University, Chengdu, China
| | - Zheng Shi
- Clinical Medical College, Affiliated Hospital, School of Basic Medical Sciences of Chengdu University, Chengdu, China
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Monetite vs. Brushite: Different Influences on Bone Cell Response Modulated by Strontium Functionalization. J Funct Biomater 2022; 13:jfb13020065. [PMID: 35735920 PMCID: PMC9225351 DOI: 10.3390/jfb13020065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/13/2022] [Accepted: 05/20/2022] [Indexed: 02/01/2023] Open
Abstract
Monetite and brushite are regarded with increasing interest for the preparation of biomaterials for applications in the musculoskeletal system. Herein, we investigated the influence of strontium substitution in the structures of these two phosphates on bone cell response. To achieve this aim, co-cultures of human primary osteoclasts and human osteoblast-like MG63 cells were tested on strontium-substituted monetite and strontium-substituted brushite, as well as on monetite and brushite, as controls. In both structures, strontium substitution for calcium amounted to about 6 at% and provoked enlargement of the cell parameters and morphologic variations. Cumulative release in physiological solution increased linearly over time and was greater from brushite (up to about 160 and 560 mg/L at 14 days for Sr and Ca, respectively) than from monetite (up to about 90 and 250 mg/L at 14 days for Sr and Ca, respectively). The increasing viability of osteoblast-like cells over time, with the different expression level of some typical bone markers, indicates a more pronounced trigger toward osteoblast differentiation and osteoclast inhibition by brushite materials. In particular, the inhibition of cathepsin K and tartrate-resistant acid phosphatase at the gene and morphological levels suggests strontium-substituted brushite can be applied in diseases characterized by excessive bone resorption.
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Yu H, Liu Y, Yang X, He J, Zhong Q, Guo X. The anti‑inflammation effect of strontium ranelate on rat chondrocytes with or without IL‑1β in vitro. Exp Ther Med 2022; 23:208. [PMID: 35126711 PMCID: PMC8796647 DOI: 10.3892/etm.2022.11131] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/10/2021] [Indexed: 12/03/2022] Open
Abstract
Temporomandibular joint osteoarthritis (TMJ-OA) is a common disease with a high level of inflammation in the joint micro-environment and cartilage degradation. Anti-inflammation and cartilage regeneration are the key therapies for TMJ-OA, but currently, there are no novel medicines or treatments that can control its pathogenic progression. Strontium ranelate (SrR) is an anti-osteoporosis drug and is now considered a promising anti-OA drug, but the anti-inflammatory effect of SrR remains to be elucidated. In the present study, the anti-inflammatory effect of SrR in a normal or high IL-1β environment was observed. Cell viability under the treatment of SrR was tested using Cell Counting Kit-8. Toluidine blue staining, immunofluorescence staining, hydroxyproline assay, PCR assay and western blotting were used to detect the expression of collagen (Col)II, proteoglycans (PG) and aggrecan as a reflection of extracellular matrix synthesis and MMP-9,13 hydroxyproline was used as an inflammation indicator. IL-1β of 10 ng/ml was added to the culture medium as inflammation environment and the tests of those biomarkers were done again. Then, the changes in β-catenin were also studied by immunofluorescence staining, PCR assay and western blotting to explore the possible involvement of the Wnt/β-catenin pathway. The results showed a significant inhibition of MMP-9, MMP-13, β-catenin and promotion of Col-II, PG and aggrecan in normal chondrocytes. The presence of IL-1β markedly upregulated the expression of MMP-9, MMP-13 and β-catenin while suppressing Col-II and PG and SrR partially reversed this trend. In conclusion, SrR decreased MMPs but promoted Col-II, aggrecan and PG synthesis in rat chondrocytes with or without the presence of IL-1β and SrR attenuated the IL-1β-induced increase in β-catenin, thus reducing the inflammatory reaction.
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Affiliation(s)
- Hao Yu
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Yan Liu
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Xiangwen Yang
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Jiajing He
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Qun Zhong
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Xiaojing Guo
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
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Yu H, Liu Y, Yang X, He J, Zhang F, Zhong Q, Guo X. Strontium ranelate promotes chondrogenesis through inhibition of the Wnt/β-catenin pathway. Stem Cell Res Ther 2021; 12:296. [PMID: 34016181 PMCID: PMC8139050 DOI: 10.1186/s13287-021-02372-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/09/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cartilage regeneration is a key step in functional reconstruction for temporomandibular joint osteoarthritis (TMJ-OA) but is a difficult issue to address. Strontium ranelate (SrR) is an antiosteoporosis drug that has been proven to affect OA in recent years, but its effect on chondrogenesis and the underlying mechanism are still unclear. METHODS Bone mesenchymal stem cells (BMSCs) from Sprague-Dawley (SD) rats were induced in chondrogenic differentiation medium with or without SrR, XAV-939, and LiCl. CCK-8 assays were used to examine cell proliferation, and alcian blue staining, toluidine blue staining, immunofluorescence, and PCR analysis were performed. Western blot (WB) analyses were used to assess chondrogenic differentiation of the cells. For an in vivo study, 30 male SD rats with cartilage defects on both femoral condyles were used. The defect sites were not filled, filled with silica nanosphere plus gelatine-methacryloyl (GelMA), or filled with SrR-loaded silica nanosphere plus GelMA. After 3 months of healing, paraffin sections were made, and toluidine blue staining, safranin O/fast green staining, and immunofluorescent or immunohistochemical staining were performed for histological evaluation. The data were analyzed by SPSS 26.0 software. RESULTS Low concentrations of SrR did not inhibit cell proliferation, and the cells treated with SrR (0.25 mmol/L) showed stronger chondrogenesis than the control. XAV-939, an inhibitor of β-catenin, significantly promoted chondrogenesis, and SrR did not suppress this effect, while LiCl, an agonist of β-catenin, strongly suppressed chondrogenesis, and SrR reversed this inhibitory effect. In vivo study showed a significantly better cartilage regeneration and a lower activation level of β-catenin by SrR-loaded GelMA than the other treatments. CONCLUSION SrR could promote BMSCs chondrogenic differentiation by inhibiting the Wnt/β-catenin signaling pathway and accelerate cartilage regeneration in rat femoral condyle defects.
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Affiliation(s)
- Hao Yu
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Yan Liu
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Xiangwen Yang
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Jiajing He
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Fan Zhang
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China.,Department of Orthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China
| | - Qun Zhong
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Xiaojing Guo
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China. .,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China.
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Baheiraei N, Eyni H, Bakhshi B, Najafloo R, Rabiee N. Effects of strontium ions with potential antibacterial activity on in vivo bone regeneration. Sci Rep 2021; 11:8745. [PMID: 33888790 PMCID: PMC8062523 DOI: 10.1038/s41598-021-88058-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 04/07/2021] [Indexed: 11/15/2022] Open
Abstract
Bioactive glasses (BGs) have attracted added attention in the structure of the scaffolds for bone repair applications. Different metal ions could be doped in BGs to induce specific biological responses. Among these ions, strontium (Sr) is considered as an effective and safe doping element with promising effects on bone formation and regeneration. In this experiment, we evaluated the antibacterial activities of the gelatin-BG (Gel-BG) and Gel-BG/Sr scaffolds in vitro. The osteogenic properties of the prepared scaffolds were also assessed in rabbit calvarial bone defects for 12 weeks. Both scaffolds showed in vivo bone formation during 12 weeks with the newly formed bone area in Gel-BG/Sr scaffold was higher than that in Gel-BG scaffolds after the whole period. Based on the histological results, Gel-BG/Sr exhibited acceleration of early-stage bone formation in vivo. The results of antibacterial investigation for both scaffolds showed complete growth inhibition against Escherichia coli (E. coli). Although Gel-BG revealed no antibacterial effect on Staphylococcus aureus (S. aureus), the Gel-BG/Sr was able to partially inhibit the growth of S. aureus, as detected by threefold reduction in growth index. Our results confirmed that Sr doped BG is a favorable candidate for bone tissue engineering with superior antibacterial activity and bone regeneration capacity compared with similar counterparts having no Sr ion.
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Affiliation(s)
- Nafiseh Baheiraei
- Tissue Engineering and Applied Cell Sciences Division, Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Hossein Eyni
- Department of Anatomical Sciences, Faculty of Medical sceinces, Tarbiat Modares University, Tehran, Iran
| | - Bita Bakhshi
- Department of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Raziyeh Najafloo
- Department of Bio-Informatics, Faculty of Interdisciplinary Science and Technology, Tarbiat Modares University, Tehran, Iran
| | - Navid Rabiee
- Department of Chemistry, Shahid Beheshti University, Tehran, Iran
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Wu X, Tang Z, Wu K, Bai Y, Lin X, Yang H, Yang Q, Wang Z, Ni X, Liu H, Yang L. Strontium-calcium phosphate hybrid cement with enhanced osteogenic and angiogenic properties for vascularised bone regeneration. J Mater Chem B 2021; 9:5982-5997. [PMID: 34139000 DOI: 10.1039/d1tb00439e] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Vascularized bone tissue engineering is regarded as one of the optimal treatment options for large bone defects. The lack of angiogenic properties and unsatisfactory physicochemical performance restricts calcium phosphate cement (CPC) from application in vascularized bone tissue engineering. Our previous studies have developed a starch and BaSO4 incorporated calcium phosphate hybrid cement (CPHC) with improved mechanical strength and handling properties. However, the bioactivity-especially the angiogenic ability-is still absent and requires further improvement. Herein, based on the reported CPHC and the osteogenic and angiogenic properties of strontium (Sr) ions, a strontium-enhanced calcium phosphate hybrid cement (Sr-CPHC) was developed to improve both biological and physicochemical properties of CPC. Compared to CPC, the initial setting time of Sr-CPHC was prolonged from 2.2 min to 20.7 min. The compressive strength of Sr-CPHC improved from 11.21 MPa to 45.52 MPa compared with CPC as well. Sr-CPHC was biocompatible and showed promotion of alkaline phosphatase (ALP) activity, calcium nodule formation and osteogenic relative gene expression, suggesting high osteogenic-inductivity. Sr-CPHC also facilitated the migration and tube formation of human umbilical vein endothelial cells (HUVECs) in vitro and up-regulated the expression of the vascular endothelial growth factor (VEGF) and Angiopoietin-1 (Ang-1). In vivo evaluation showed marked new bone formation in a rat calvarial defect model with Sr-CPHC implanted. Sr-CPHC also exhibited enhancement of neovascularization in subcutaneous connective tissue in a rat subcutaneous implantation model. Thus, the Sr-CPHC with the dual effects of osteogenesis and angiogenesis shows great potential for clinical applications such as the repair of ischemic osteonecrosis and critical-size bone defects.
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Affiliation(s)
- Xiexing Wu
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Ziniu Tang
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Kang Wu
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Yanjie Bai
- School of Public Health, Medical College, Soochow University, Suzhou 215006, P. R. China
| | - Xiao Lin
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Huilin Yang
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China
| | - Qiang Yang
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, P. R. China
| | - Zheng Wang
- Department of Orthopedics, PLA General Hospital, Beijing 100853, P. R. China
| | - Xinye Ni
- Second People's Hospital of Changzhou, Nanjing Medical University, No. 68 Gehu Road, Changzhou 213003, P. R. China.
| | - Huiling Liu
- Institute of Orthopedics, Medical College, Soochow University, Suzhou 215006, P. R. China.
| | - Lei Yang
- Institute of Orthopedics and Department of Orthopedics, The First Affiliated Hospital, Soochow University, No. 708 Renmin Road, Suzhou 215006, P. R. China and Center for Health Science and Engineering (CHSE), School of Materials Science and Engineering, Hebei University of Technology, No. 8 Guangrong Road, Tianjin 300130, P. R. China.
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7
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Wang Z, Wang X, Pei J, Tian Y, Zhang J, Jiang C, Huang J, Pang Z, Cao Y, Wang X, An S, Wang X, Huang H, Yuan G, Yan Z. Degradation and osteogenic induction of a SrHPO 4-coated Mg-Nd-Zn-Zr alloy intramedullary nail in a rat femoral shaft fracture model. Biomaterials 2020; 247:119962. [PMID: 32251929 DOI: 10.1016/j.biomaterials.2020.119962] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 02/29/2020] [Accepted: 03/08/2020] [Indexed: 12/21/2022]
Abstract
Magnesium and Mg-based alloys are promising biomaterials for orthopedic implants because of their degradability, osteogenic effects, and biocompatibility. However, the drawbacks of these materials include high hydrogen gas production, unexpected corrosion resistance, and insufficient mechanical strength duration. Surface modification can protect these biomaterials and induce osteogenesis. In this work, a SrHPO4 coating was developed for our patented biodegradable Mg-Nd-Zn-Zr alloy (abbr. JDBM) through a chemical deposition method. The coating was characterized by in vitro immersion, ion release, and cytotoxicity tests, which showed a slower corrosion behavior and excellent cell viability. RNA sequencing of MC3T3E1 cells treated with SrHPO4-coated JDBM ion release test extract showed increased Tlr4, followed by the activation of the downstream PI3K/Akt signaling pathway, causing proliferation and growth of pre-osteoblasts. An intramedullary nail (IMN) was implanted in a femoral fracture rat model. Mechanical test, radiological and histological analysis suggested that SrHPO4-coated JDBM has superior mechanical properties, induces more bone formation, and decreases the degradation rate compared with uncoated JDBM and the administration of TLR4 inhibitor attenuated the new bone formation for fracture healing. SrHPO4 is a promising coating for JDBM implants, particularly for long-bone fractures.
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Affiliation(s)
- Zhe Wang
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China; Department of Orthopedic Surgery, School of Medicine, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Xinyuan Wang
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Jia Pei
- National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai, 200240, China; Shanghai Innovation Institute for Materials, Shanghai, 200444, China
| | - Yuan Tian
- National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jian Zhang
- Shanghai Innovation Medical Technology Co., Ltd, Shanghai, 201306, China
| | - Chang Jiang
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Junming Huang
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Zhiying Pang
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Yuanwu Cao
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Xiuhui Wang
- Department of Orthopedics Zhoupu Hospital Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, 201318, China
| | - Senbo An
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Xiao Wang
- Department of Orthopedic Surgery, School of Medicine, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Hua Huang
- National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai, 200240, China; Shanghai Innovation Institute for Materials, Shanghai, 200444, China.
| | - Guangyin Yuan
- National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai, 200240, China; Shanghai Innovation Institute for Materials, Shanghai, 200444, China.
| | - Zuoqin Yan
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
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Ge C, Chen F, Mao L, Liang Q, Su Y, Liu C. Strontium ranelate-loaded POFC/β-TCP porous scaffolds for osteoporotic bone repair. RSC Adv 2020; 10:9016-9025. [PMID: 35496515 PMCID: PMC9050029 DOI: 10.1039/c9ra08909h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 02/08/2020] [Indexed: 12/14/2022] Open
Abstract
It is of considerable significance to fabricate scaffolds with satisfactory osteogenic activities and high osteogenesis quality to accelerate osteoporotic repair. In this study, we initially fabricated the POFC/β-TCP porous scaffold in the light of composition and structure bionics, and then loaded the SR to the optimized POFC/β-TCP porous scaffold by 3D printing based on FFS-MDJ. The hydrophilicity, mechanical properties biodegradability and cell response of the composite scaffolds were systematically investigated. The result showed that modified POFC enhanced the hydrophilicity and ameliorated the brittleness of pure β-TCP. β-TCP buffered the acidity and improved the degradability and cell affinity of the scaffold, and the release of strontium ranelate significantly promote the proliferation and differentiation of osteoblasts and guided bone regeneration. The results indicated that POFC/β-TCP scaffolds had uniform macropores of 300-500 μm and a porosity of approximately 48%, adjustable biodegradability and a high compressive modulus of 30-60 MPa. The strontium ranelate-loaded POFC/β-TCP scaffold enhanced the osteogenic differentiation of rBMSCs, which might be a promising candidate for osteoporotic-related bone defect repair.
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Affiliation(s)
- Caicai Ge
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology Shanghai 200237 P. R. China
| | - Fangping Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology Shanghai 200237 P. R. China +86-21-64251358 +86-21-64251308
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology Shanghai 200237 P. R. China
| | - Lijie Mao
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology Shanghai 200237 P. R. China
| | - Qing Liang
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology Shanghai 200237 P. R. China
| | - Yan Su
- Department of Orthopedics, Affiliated Sixth People's Hospital, Shanghai Jiaotong University Shanghai 200032 China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology Shanghai 200237 P. R. China +86-21-64251358 +86-21-64251308
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology Shanghai 200237 P. R. China
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9
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Cao P, Li Y, Tang Y, Ding C, Hunter DJ. Pharmacotherapy for knee osteoarthritis: current and emerging therapies. Expert Opin Pharmacother 2020; 21:797-809. [PMID: 32100600 DOI: 10.1080/14656566.2020.1732924] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Peihua Cao
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yamin Li
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yujin Tang
- Department of Orthopedic Surgery, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, China
| | - Changhai Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - David J. Hunter
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Department of Rheumatology, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney, Australia
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10
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Hu P, Du J, Zhang S, Wang T, Li J, Chen G, Zhou G. Oral Administration of Strontium Gluconate Effectively Reduces Articular Cartilage Degeneration Through Enhanced Anabolic Activity of Chondrocytes and Chondrogenetic Differentiation of Mesenchymal Stromal Cells. Biol Trace Elem Res 2020; 193:422-433. [PMID: 31054068 DOI: 10.1007/s12011-019-01711-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/27/2019] [Indexed: 12/28/2022]
Abstract
Osteoarthritis (OA), a common degenerative disease affecting articular cartilage, is caused by multiple factors, and currently, there are few approaches to effectively delay its progression. This study aimed to evaluate whether a strontium compound (in the form of strontium gluconate, Glu-Sr) could reduce OA pathology severity in osteoarthritic rat models by directly targeting chondrocytes, including catabolic/anabolic activities and/or chondrogenic differentiation. Glu-Sr was administered to OA rats by oral gavage beginning during OA induction and continuing for 8 weeks. Glu-Sr treatment was found to significantly reduce cartilage degeneration and delay OA progression. Further examination showed that collagen II, Sox9, and aggrecan (ACAN) genes were up-regulated whereas IL-1β was down-regulated in chondrocytes isolated from Glu-Sr-treated rats. Glu-Sr also antagonized the catabolic effects of IL-1β on chondrocytes. Furthermore, Glu-Sr was shown to promote the chondrogenic differentiation of bone marrow mesenchymal stem cells (BMMSCs), possibly through promoting chondrogenic gene expression, including CTGF and FGF1, as revealed by RNA-sequencing (RNA-seq). These results suggest that systemic administration of Glu-Sr may be useful in prophylactic and therapeutic treatment of chronic cartilage degradation through affecting multiple steps from chondrogenic differentiation of progenitors to matrix formation in mature chondrocytes.
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Affiliation(s)
- Peilin Hu
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China
| | - Jie Du
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China
| | - Shuai Zhang
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China
| | - Ting Wang
- Shenzhen Alps Cell Technologies Ltd, Longhua District, Shenzhen, Guangdong Province, China
| | - Jun Li
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China
| | - Gang Chen
- Department of Orthopaedic Surgery, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi Province, China.
| | - Guangqian Zhou
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China.
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Zhao R, Chen S, Zhao W, Yang L, Yuan B, Ioan VS, Iulian AV, Yang X, Zhu X, Zhang X. A bioceramic scaffold composed of strontium-doped three-dimensional hydroxyapatite whiskers for enhanced bone regeneration in osteoporotic defects. Theranostics 2020; 10:1572-1589. [PMID: 32042323 PMCID: PMC6993240 DOI: 10.7150/thno.40103] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 10/25/2019] [Indexed: 12/23/2022] Open
Abstract
Reconstruction of osteoporotic bone defects is a clinical problem that continues to inspire the design of new materials. Methods: In this work, bioceramics composed of strontium (Sr)-doped hydroxyapatite (HA) whiskers or pure HA whiskers were successfully fabricated by hydrothermal treatment and respectively named SrWCP and WCP. Both bioceramics had similar three-dimensional (3D) porous structures and mechanical strengths, but the SrWCP bioceramic was capable of releasing Sr under physiological conditions. In an osteoporotic rat metaphyseal femoral bone defect model, both bioceramic scaffolds were implanted, and another group that received WCP plus strontium ranelate drug administration (Sr-Ran+WCP) was studied for comparison. Results: At week 1 post-implantation, osteogenesis coupled blood vessels were found to be more common in the SrWCP and Sr-Ran+WCP groups, with substantial vascular-like structures. After 12 weeks of implantation, comparable to the Sr-Ran+WCP group, the SrWCP group showed induction of more new bone formation within the defect as well as at the implant-bone gap region than that of the WCP group. Both the SrWCP and Sr-Ran+WCP groups yielded a beneficial effect on the surrounding trabecular bone microstructure to resist osteoporosis-induced progressive bone loss. While an abnormally high blood Sr ion concentration was found in the Sr-Ran+WCP group, SrWCP showed little adverse effect. Conclusion: Our results collectively suggest that the SrWCP bioceramic can be a safe bone substitute for the treatment of osteoporotic bone defects, as it promotes local bone regeneration and implant osseointegration to a level that strontium ranelate can achieve.
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Affiliation(s)
- Rui Zhao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Siyu Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Wanlu Zhao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Long Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Bo Yuan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Voicu Stefan Ioan
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, Bucharest 011061, Romania
| | - Antoniac Vasile Iulian
- Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, Bucharest 060042, Romania
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
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12
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Pei Y, Zheng K, Shang G, Wang Y, Wang W, Qiu E, Li S, Zhang X. Therapeutic Effect of Strontium Ranelate on Bone in Chemotherapy-Induced Osteopenic Rats via Increased Bone Volume and Reduced Bone Loss. Biol Trace Elem Res 2019; 187:472-481. [PMID: 29882118 DOI: 10.1007/s12011-018-1401-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/29/2018] [Indexed: 11/25/2022]
Abstract
The purpose of this study was to determine whether treatment with strontium ranelate (SrR) can restore bone mass and strength at a skeletal site with established osteopenia in chemotherapy-induced rats. Forty-five Sprague-Dawley male rats were randomly assigned to three study groups (n = 15 rats per group): normal rats (control group), osteopenic rats (chemo group), and osteopenic rats with SrR (chemo-SrR group). We chose a male rat model that mimicked a clinical setting by weekly intravenous injection of cyclophosphamide at 20 mg/kg. The control and chemo groups were maintained without treatment, and the chemo-SrR group was intragastrically administered strontium ranelate at a dosage of 900 mg/kg/day. All animals were fed a standard laboratory diet, and blood samples were collected for biochemical analysis. After 12 weeks of treatment, micro-CT, biomechanical testing, and histomorphometry were examined. In addition, bone samples were obtained to evaluate the content of mineral substances in bones. SrR treatment of chemo rats significantly increased tibial trabecular bone volume, trabecular thickness, and BV/TV. Serum levels of the bone formation marker alkaline phosphatase (ALP) in the SrR group were significantly higher than those in the chemo animals, which was accompanied by an increase in the bone mineral content, bone calcium and phosphate, as well as reduced serum Ca and P concentrations. The serum level of tartrate-resistant acid phosphatase (TRAP) in the SrR treatment group showed no obvious changes. Histomorphological analyses revealed that chemotherapy resulted in decreased osteoclast number, which may be due to the inhibition of bone turnover. However, SrR treatment enhanced the number of osteoblasts while restoring bone mass and improving bone strength in chemo rats. Therefore, the results of this study indicate that SrR treatment has a positive effect on bone in chemotherapy-induced osteoporosis.
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Affiliation(s)
- Yi Pei
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - Ke Zheng
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - GuanNing Shang
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - YuMing Wang
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - Wei Wang
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - EnDuo Qiu
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - ShenLong Li
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - XiaoJing Zhang
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China.
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Zhu Z, Li J, Ruan G, Wang G, Huang C, Ding C. Investigational drugs for the treatment of osteoarthritis, an update on recent developments. Expert Opin Investig Drugs 2018; 27:881-900. [PMID: 30345826 DOI: 10.1080/13543784.2018.1539075] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Osteoarthritis (OA) is the leading cause of pain, loss of function, and disability among elderly, with the knee the most affected joint. It is a heterogeneous condition characterized by complex and multifactorial etiologies which contribute to the broad variation in symptoms presentation and treatment responses that OA patients present. This poses a challenge for the development of effective treatment on OA. AREAS COVERED This review will discuss recent development of agents for the treatment of OA, updating our previous narrative review published in 2015. They include drugs for controlling local and systemic inflammation, regulating articular cartilage, targeting subchondral bone, and relieving pain. EXPERT OPINION Although new OA drugs such as monoclonal antibodies have shown marked effects and favorable tolerance, current treatment options for OA remain limited. The authors believe there is no miracle drug that can be used for all OA patients'; treatment and disease stage is crucial for the effectiveness of drugs. Therefore, early diagnosis, phenotyping OA patients and precise therapy would expedite the development of investigational drugs targeting at symptoms and disease progression of OA.
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Affiliation(s)
- Zhaohua Zhu
- a Clinical Research Centre, Zhujiang Hospital, Southern Medical University , Guangzhou , China
| | - Jia Li
- a Clinical Research Centre, Zhujiang Hospital, Southern Medical University , Guangzhou , China
| | - Guangfeng Ruan
- a Clinical Research Centre, Zhujiang Hospital, Southern Medical University , Guangzhou , China.,b Department of Rheumatology and Immunology , Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University , Hefei , China
| | - Guoliang Wang
- c Menzies Institute for Medical Research, University of Tasmania , Hobart , Australia
| | - Cibo Huang
- d Department of Rheumatology & Immunology , Beijing Hospital , Beijing , China
| | - Changhai Ding
- a Clinical Research Centre, Zhujiang Hospital, Southern Medical University , Guangzhou , China.,b Department of Rheumatology and Immunology , Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University , Hefei , China.,c Menzies Institute for Medical Research, University of Tasmania , Hobart , Australia
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14
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Rodrigues TA, de Oliveira Freire A, Carvalho HCO, Silva GEB, Vasconcelos JW, Guerra RNM, de Sousa Cartágenes MDS, Garcia JBS. Prophylactic and Therapeutic Use of Strontium Ranelate Reduces the Progression of Experimental Osteoarthritis. Front Pharmacol 2018; 9:975. [PMID: 30283333 PMCID: PMC6157419 DOI: 10.3389/fphar.2018.00975] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 08/08/2018] [Indexed: 02/04/2023] Open
Abstract
Introduction: Strontium ranelate (SrRan) has the potential to interfere in the progression of osteoarthritis (OA), multifactorial disease associated with mechanical problems and articular inflammatory changes. Objectives: This study aimed to test the effects of prophylactic and therapeutic use of SrRan on clinical parameters of pain, the inflammatory process, and degradation of the articular cartilage. Methods: This was an experimental study, using a model of knee OA induced by intra-articular injection of monoiodoacetate. Thirty Wistar rats were divided into five groups and treated as indicated: control, without intervention; prophylactic, received SrRan at a daily oral dose of 250 mg/kg for 28 days before OA induction; SrRan treatments, administered 250 or 500 mg/kg/day for 28 days after the induction; and model control, received saline solution after the induction. Behavioral tests (joint incapacity, mechanical hyperalgesia, tactile sensitivity, and forced ambulation), histological evaluation of articular cartilage, and determination of inflammatory cytokines in the synovial fluid (interleukin [IL]-6, IL-10, tumor necrosis factor [TNF]-α, and interferon [INF]-γ) were performed. Results: Both prophylactic and therapeutic treatments improved the articular discomfort. A prophylactic dose of 500 mg/kg/day also improved mechanical hyperalgesia and the same dose was beneficial on tactile sensitivity. SrRan did not improve ambulation. Levels of IL-6, IL-10, TNF-α, and IFN-γ in SrRan-treated groups with OA were not significantly different compared with those in the normal control animals. The histopathological evaluation showed less articular damage in the SrRan-treated and control groups compared to the saline-treated group. Conclusion: The prophylactic and therapeutic administration of SrRan was associated with improved behavioral patterns of pain, especially joint discomfort. SrRan administration mitigated histological changes in the articular cartilage and reduced the inflammatory process, which beneficially reduced the progression of OA in the experimental model studied.
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Affiliation(s)
- Thiago A. Rodrigues
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, Brazil
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Rodrigues TA, Freire AO, Bonfim BF, Cartágenes MSS, Garcia JBS. Strontium ranelate as a possible disease-modifying osteoarthritis drug: a systematic review. Braz J Med Biol Res 2018; 51:e7440. [PMID: 29924137 PMCID: PMC6040865 DOI: 10.1590/1414-431x20187440] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 05/02/2018] [Indexed: 12/20/2022] Open
Abstract
Considering that osteoarthritis (OA) is the most prevalent joint disease worldwide, multiple pharmacological treatments have been proposed to alter the articular structure with potential benefit in the progression of the disease. The so-called disease-modifying OA drugs have been frequently investigated but conclusive findings are rare. Strontium ranelate (SrRan) is a drug usually prescribed to treat osteoporosis, with proven effects in decreasing the risk of fractures and possible effect in reducing the progression of OA. The objective of this review was to demonstrate the current panorama of knowledge on the use of SrRan in clinical and experimental models, clarifying its mechanisms of action and describing possible anti-nociceptive and anti-inflammatory effects. The systematic review was based on the PRISMA statement and included articles that are indexed in scientific databases. Fifteen studies were included: seven pre-clinical and eight clinical studies. Despite the limited number of studies, the results suggest a positive effect of SrRan in patients with OA, through changes in functional capacity and reduction of progression of morphological parameters and joint degradation, with moderate quality of evidence for those clinical outcomes. Novel studies are necessary to elucidate the molecular targets of SrRan, focusing on anti-inflammatory effects and histological changes promoted by SrRan, which seemed to reduce the progression of OA in the experimental and clinical studies.
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Affiliation(s)
- T A Rodrigues
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - A O Freire
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - B F Bonfim
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - M S S Cartágenes
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - J B S Garcia
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
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16
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Strontium ranelate promotes odonto-/osteogenic differentiation/mineralization of dental papillae cells in vitro and mineralized tissue formation of the dental pulp in vivo. Sci Rep 2018; 8:9224. [PMID: 29907831 PMCID: PMC6003917 DOI: 10.1038/s41598-018-27461-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 06/04/2018] [Indexed: 12/28/2022] Open
Abstract
This study examined the effects and mechanisms of strontium ranelate (SrRn)-a drug used to treat osteoporosis-on the proliferation and differentiation/mineralization of cloned dental pulp-like cells (mouse dental papillae cells; MDPs). It also determined whether topical application of SrRn to exposed dental pulp tissue promotes the formation of mineralized tissue in vivo. The MDPs were cultured with or without SrRn, and cell proliferation, odonto-/osteoblastic gene expression, mineralized nodule formation, and Akt phosphorylation were evaluated. The formation of mineralized tissue in SrRn-treated pulp tissue in rat upper first molars was evaluated histologically. The SrRn up-regulated cell proliferation and expression of Alp (alkaline phosphatase), Bsp (bone sialoprotein), Dmp (dentin matrix acidic phosphoprotein)-1, Dspp (dentin sialophosphoprotein), and Oc (osteocalcin) in a dose-dependent manner. Mineralized nodule formation was also enhanced by SrRn. NPS-2143, a calcium-sensing receptor (CaSR) antagonist, and siRNA against the CaSR gene blocked SrRn-induced proliferation, odonto-/osteoblastic gene expression, and mineralized nodule formation. SrRn induced Akt phosphorylation, and this was blocked by NPS-2143. Topical application of SrRn to exposed rat molar pulps induced the formation of osteodentin-like mineralized tissue. Our study revealed for the first time that SrRn promotes proliferation and odonto-/osteogenic differentiation/mineralization of MDPs via PI3K/Akt signaling activated by CaSR in vitro; mineralized tissue forms from the dental pulp in vivo.
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17
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Zhao F, Lei B, Li X, Mo Y, Wang R, Chen D, Chen X. Promoting in vivo early angiogenesis with sub-micrometer strontium-contained bioactive microspheres through modulating macrophage phenotypes. Biomaterials 2018; 178:36-47. [PMID: 29908343 DOI: 10.1016/j.biomaterials.2018.06.004] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/28/2018] [Accepted: 06/05/2018] [Indexed: 01/07/2023]
Abstract
Early vascularization capacity of biomaterials plays an essential role in efficient wound healing and tissue regeneration, especially in large tissue tension implanting position such as bone augmentation. Strontium-contained silica-based bioactive materials have shown the role of promoting angiogenesis by stimulating osteoblasts to secrete angiogenesis related cytokines. However, osteoblasts have little effect on early angiogenesis due to the inflammatory reaction of implantation site. Here, for the first time, we found that the monodispersed strontium-contained bioactive glasses microspheres (SrBGM) could significantly promote the early angiogenesis through regulating macrophage phenotypes. After being stimulated with SrBGM in vitro, RAW cells (macrophages) presented a trend towards to M2 phenotype and expressed high level of platelet-derived growth factor-BB (PDGF-BB). Moreover, the RAW conditioned medium of SrBGM significantly enhanced the angiogenic capacity of HUVECs. The in vivo early vascularization studies showed that significant new vessels were observed at the center of SrBGM-based scaffolds after implantation for 1 week in a bone defect model of rats, suggesting their enhanced early vascularization. Due to the efficient vascularization, the in vivo new bone formation was promoted significantly. Our study may provide a novel strategy to promote the early vascularization of biomaterials through modulating the microphage phenotypes, which has wide applications in various tissue regeneration and wound healing.
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Affiliation(s)
- Fujian Zhao
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, 510006, China; Key Laboratory of Biomedical Materials and Engineering, Ministry of Education, South China University of Technology, Guangzhou, 510006, China
| | - Bo Lei
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710000, China; Instrument Analysis Center, Xi'an Jiaotong University, Xi'an, 710054, China; State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, 710054, China.
| | - Xian Li
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, 510006, China; Key Laboratory of Biomedical Materials and Engineering, Ministry of Education, South China University of Technology, Guangzhou, 510006, China
| | - Yunfei Mo
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, 510006, China; Key Laboratory of Biomedical Materials and Engineering, Ministry of Education, South China University of Technology, Guangzhou, 510006, China
| | - Renxian Wang
- Laboratory of Bone Tissue Engineering, Beijing Laboratory of Biomedical Materials, Beijing Research Institute of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Beijing, 100035, China
| | - Dafu Chen
- Laboratory of Bone Tissue Engineering, Beijing Laboratory of Biomedical Materials, Beijing Research Institute of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Beijing, 100035, China.
| | - Xiaofeng Chen
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, 510006, China; Key Laboratory of Biomedical Materials and Engineering, Ministry of Education, South China University of Technology, Guangzhou, 510006, China.
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18
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Pilmane M, Salma-Ancane K, Loca D, Locs J, Berzina-Cimdina L. Strontium and strontium ranelate: Historical review of some of their functions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:1222-1230. [PMID: 28575961 DOI: 10.1016/j.msec.2017.05.042] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 04/29/2017] [Accepted: 05/09/2017] [Indexed: 12/19/2022]
Abstract
The review covers historical and last decade's scientific literature on the biological and clinical role of strontium (Sr) and strontium ranelate (Sr RAN). It enrols the description of the main effects of Sr on supportive tissue, its proven and possible morphopathogenetical mechanisms and the interaction with the bone, and especially focuses on the Sr ability to inhibit osteoclasts and affect the programmed cell death. The main experimental and clinical experience regarding the Sr RAN influence in the treatment of osteoporosis and the search for correct doses is also highlighted. The review gives insight into the role of Sr/Sr RAN on stem cells, apoptosis, animal and clinical research.
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Affiliation(s)
- M Pilmane
- Institute of Anatomy and Anthropology, Riga Stradins University, 16 Dzirciema Str., Riga LV 1007, Latvia
| | - K Salma-Ancane
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia.
| | - D Loca
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia
| | - J Locs
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia
| | - L Berzina-Cimdina
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia
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19
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Han W, Fan S, Bai X, Ding C. Strontium ranelate, a promising disease modifying osteoarthritis drug. Expert Opin Investig Drugs 2017; 26:375-380. [PMID: 28092725 DOI: 10.1080/13543784.2017.1283403] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION The articular cartilage and subchondral bone may have potential crosstalk in the development and progression of osteoarthritis (OA). Strontium ranelate (SrR) has the ability to dissociate the bone remodeling process and to change the balance between bone resorption and bone formation. Its effect on subchondral bone makes it a potential disease- modifying osteoarthritis drug (DMOAD) in the treatment of OA. The aim of the current review is to summarize up-to-date pharmacological and clinical data of SrR for OA treatment. Areas covered: A literature search was performed on PubMed and European Medicines Agency (EMA) website for all publications and documents related to SrR and OA. References of related studies were searched by hand. Treatment with SrR, especially at the dosage of 2 g/day, was associated with reduced radiographic knee OA progression, and with meaningful clinical improvement. It was also significantly associated with decreased MRI-assessed cartilage volume loss (CVL) and bone marrow lesions (BMLs). Expert opinion: SrR could be a promising DMOAD particularly for OA patients with bone phenotypes. The clinical efficacy and side effects of SrR for OA treatment need to be further investigated in future clinical trials before clinical application.
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Affiliation(s)
- Weiyu Han
- a Department of Orthopaedics , 3rd Affiliated Hospital of Southern Medical University , Guangzhou , China.,b Academy of Orthopaedics, Guangdong Province , Southern Medical University , Guangzhou , China.,c Menzies Institute for Medical Research , University of Tasmania , Hobart , Tasmania , Australia
| | - Shicai Fan
- a Department of Orthopaedics , 3rd Affiliated Hospital of Southern Medical University , Guangzhou , China.,b Academy of Orthopaedics, Guangdong Province , Southern Medical University , Guangzhou , China
| | - Xiaochun Bai
- a Department of Orthopaedics , 3rd Affiliated Hospital of Southern Medical University , Guangzhou , China.,b Academy of Orthopaedics, Guangdong Province , Southern Medical University , Guangzhou , China
| | - Changhai Ding
- b Academy of Orthopaedics, Guangdong Province , Southern Medical University , Guangzhou , China.,c Menzies Institute for Medical Research , University of Tasmania , Hobart , Tasmania , Australia.,d Department of Epidemiology and Preventive Medicine , Monash University , Melbourne , Victoria , Australia
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O'Connell K, Pierlot C, O'Shea H, Beaudry D, Chagnon M, Assad M, Boyd D. Host responses to a strontium releasing high boron glass using a rabbit bilateral femoral defect model. J Biomed Mater Res B Appl Biomater 2016; 105:1818-1827. [PMID: 27219680 DOI: 10.1002/jbm.b.33694] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/30/2016] [Accepted: 04/06/2016] [Indexed: 11/09/2022]
Abstract
Borate glasses have shown promising potential as bioactive materials. With recent research demonstrating that glass properties may be modulated by appropriate compositional design. This may provide for indication specific material characteristics and controlled release of therapeutic inorganic ions (i.e., strontium); controlling such release is critical in order to harness the therapeutic potential. Within this sub-chronic pilot study, a rabbit long-bone model was utilized to explore the safety and efficacy of a high borate glass (LB102: 70B2 O3 -20SrO-6Na2 O-4La2 O3 ) particulate (90 - 710 μm) for bone regeneration. Six bilateral full-thickness defects (Ø = 3.5 mm; L = 8 mm) were created in three white New Zealand rabbits. Longitudinal non-decalcified sections of each defect site were produced and stained with Goldner's Trichrome. Histopathological examination revealed that LB102 demonstrated osteoconductive and osseointegrative properties with greater new bone being formed within and surrounding LB102 particles, when compared to the sham control. The inflammatory cell infiltration was observed to be slightly higher in the control when compared to LB102 defect sites, while no significant difference in fibrosis and neovascularization was determined, indicating that healing was occurring in a normal fashion. These data further suggest the possible utility of high borate glasses with appropriate compositional design for medical applications, such as bone augmentation. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1818-1827, 2017.
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Affiliation(s)
- Kathleen O'Connell
- Department of Biological Sciences, Cork Institute of Technology, Cork, Ireland
| | - Caitlin Pierlot
- Department of Applied Oral Sciences, Dalhousie University, Halifax, NS, Canada
| | - Helen O'Shea
- Department of Biological Sciences, Cork Institute of Technology, Cork, Ireland
| | - Diane Beaudry
- Orthopedics and Biomaterials Lab, AccelLAB Inc., Boisbriand, QC, Canada
| | - Madeleine Chagnon
- Orthopedics and Biomaterials Lab, AccelLAB Inc., Boisbriand, QC, Canada
| | - Michel Assad
- Orthopedics and Biomaterials Lab, AccelLAB Inc., Boisbriand, QC, Canada
| | - Daniel Boyd
- Department of Applied Oral Sciences, Dalhousie University, Halifax, NS, Canada.,School of Biomedical Engineering, Dalhousie University, Halifax, NS, Canada
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Querido W, Rossi AL, Farina M. The effects of strontium on bone mineral: A review on current knowledge and microanalytical approaches. Micron 2015; 80:122-34. [PMID: 26546967 DOI: 10.1016/j.micron.2015.10.006] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 10/14/2015] [Accepted: 10/14/2015] [Indexed: 10/22/2022]
Abstract
The interest in effects of strontium (Sr) on bone has greatly increased in the last decade due to the development of the promising drug strontium ranelate. This drug is used for treating osteoporosis, a major bone disease affecting hundreds of millions of people worldwide, especially postmenopausal women. The novelty of strontium ranelate compared to other treatments for osteoporosis is its unique effect on bone: it simultaneously promotes bone formation by osteoblasts and inhibits bone resorption by osteoclasts. Besides affecting bone cells, treatment with strontium ranelate also has a direct effect on the mineralized bone matrix. Due to the chemical similarities between Sr and Ca, a topic that has long been of particular interest is the incorporation of Sr into bones replacing Ca from the mineral phase, which is composed by carbonated hydroxyapatite nanocrystals. Several groups have analyzed the mineral produced during treatment; however, most analysis were done with relatively large samples containing numerous nanocrystals, resulting thus on data that represents an average of many crystalline domains. The nanoscale analysis of the bone apatite crystals containing Sr has only been described in a few studies. In this study, we review the current knowledge on the effects of Sr on bone mineral and discuss the methodological approaches that have been used in the field. In particular, we focus on the great potential that advanced microscopy and microanalytical techniques may have on the detailed analysis of the nanostructure and composition of bone apatite nanocrystals produced during treatment with strontium ranelate.
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Affiliation(s)
- William Querido
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Andre L Rossi
- Centro Brasileiro de Pesquisas Físicas, 22290-180 Rio de Janeiro, RJ, Brazil
| | - Marcos Farina
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, 21941-902 Rio de Janeiro, RJ, Brazil.
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Abstract
Osteoarthritis (OA) is a painful and life-altering disease that severely limits the daily activity of millions of Americans, and is one of the most common causes of disability in the world. With obesity on the rise and the world's population living longer, the prevalence of OA is expected to increase dramatically in the coming decades, generating burdensome socioeconomic costs. This review summarizes current pharmaceutical, non-pharmaceutical, and prospective new treatments for OA, with primary focus on the dietary supplement Avocado/Soybean Unsaponifiables (ASU). ASU modulates OA pathogenesis by inhibiting a number of molecules and pathways implicated in OA. Anticatabolic properties prevent cartilage degradation by inhibiting the release and activity of matrix metalloproteinases (MMP-2,3,13) and increasing tissue inhibitors of these catabolic enzymes (TIMP-1). ASU also inhibits fibrinolysis by stimulating the expression of plasminogen activator inhibitor (PAI-1). Anabolic properties promote cartilage repair by stimulating collagen and aggrecan synthesis via inhibition of inflammatory cytokines such as IL1, IL6, IL8, TNF, ERK, and PGE2. Chondroprotective effects are mediated by correcting growth factor abnormalities, increasing TGFβ while decreasing vascular endothelial growth factor (VEGF) in synovial fluid. ASU also inhibits cholesterol absorption and endogenous cholesterol biosynthesis, which mediate reactive oxygen species pathology in chondrocytes. At the clinical level, ASU reduces pain and stiffness while improving joint function, resulting in decreased dependence on analgesics.
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Affiliation(s)
- Blaine A. Christiansen
- Department of Orthopaedic Surgery, Lawrence J. Ellison Musculoskeletal Research Center, University of California-Davis Health System, Sacramento, CA, USA
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Stratified medicine approaches for the treatment of musculoskeletal disorders. Curr Opin Pharmacol 2014; 16:127-32. [DOI: 10.1016/j.coph.2014.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 05/04/2014] [Indexed: 11/23/2022]
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