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Tang Z, Chen S, Ni Y, Zhao R, Zhu X, Yang X, Zhang X. Role of Na +, K +-ATPase ion pump in osteoinduction. Acta Biomater 2021; 129:293-308. [PMID: 34087440 DOI: 10.1016/j.actbio.2021.05.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 12/14/2022]
Abstract
Porous biphasic calcium phosphate bioceramic (BCP) possesses osteoinductivity to induce the osteoblastic commitment of mesenchymal stem cells (MSCs) and ectopic bone formation. However, the underlying mechanism remains enigmatic. We performed a gene array analysis of MSCs cocultured with BCP to screen for candidate osteoinductive modulators. Na+, K+-ATPase (NKA), an ion transporter, therefore was identified as a crucial ion transporter in regulating the osteogenesis of the cells. NKA activator, a polyclonal antibody, enriched the cytomembrane abundance of NKA and lead to an enhanced osteogenic effect of BCP. As indicated in gene array analysis and suggested by co-immunoprecipitation assay, protein phosphatase 2A (PP2A) was elevated by BCP to dephosphorylate NKA and prevent its endocytosis. The inhibition of NKA by ouabain resulted in an adverse effect on osteoinductivity of BCP. We further altered NKA activity in mice implanted with BCP and found that the intensity and incidence of osteoinduction was increased by the NKA activator. We went one step further by investigating the potential of targeting NKA in osteoporotic bone regeneration. Activating NKA upregulated osteogenic gene expression and calcium deposition ability of osteoporotic osteoblasts. Furthermore, activation of NKA in mice ameliorated estrogen-deficiency induced bone loss, in terms of increased bone mass and improved bending strength. With this osteoinductive bioceramic derived ion transporter target, we demonstrate that the activation of NKA has significant potential to revolutionize the regeneration of bone. STATEMENT OF SIGNIFICANCE: In this study, we identified an important role of Na+, K+-ATPase (NKA) have played in osteoinductivity of biphasic calcium phosphate bioceramic (BCP). Furthermore, we demonstrated the therapeutic potential of targeting NKA in osteoporotic bone regeneration. Numerous gene and protein targets to treat osteoporosis were discovered every year, mainly obtained by genomic and proteomic screenings of a large population. In contrast, our study identified an unrevealed bone regenerating target from the upregulated genes induced by an osteoinductive biomaterial. The approach was cost-saving since it did not require a large sample pool. Furthermore, the target derived from this approach was proven to be anabolic. Identification of an anabolic agent holds significant value since most of the current anti-osteoporotic therapies are antiresorptive.
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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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Mu D, Yu J, Lin J, Li C, Hao B, Gu F, Liu C, Tan L, Zhu D, Zhang X. Intermittent vibrations accelerate fracture healing in sheep. Acta Cir Bras 2019; 34:e201900702. [PMID: 31531537 PMCID: PMC6746562 DOI: 10.1590/s0102-865020190070000002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/15/2019] [Accepted: 06/13/2019] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To investigate the effect of intermittent vibration at different intervals on bone fracture healing and optimize the vibration interval. METHODS Ninety sheep were randomized to receive no treatment (the control group), incision only (the sham control group), internal fixation with or without metatarsal fracture (the internal fixation group), and continuous vibration in addition to internal fixation of metatarsal fracture, or intermittent vibration at 1, 2, 3, 5, 7 and 17-day interval in addition to internal fixation of metatarsal fracture (the vibration group). Vibration was done at frequency F=35 Hz, acceleration a=0.25g, 15 min each time 2 weeks after bone fracture. Bone healing was evaluated by micro-CT scan, bone microstructure and mechanical compression of finite element simulation. RESULTS Intermittent vibration at 7-day interval significantly improved bone fracture healing grade. However, no significant changes on microstructure parameters and mechanical properties were observed among sheep receiving vibration at different intervals. CONCLUSIONS Clinical healing effects should be the top concern. Quantitative analyses of bone microstructure and of finite element mechanics on the process of fracture healing need to be further investigated.
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Affiliation(s)
- Degong Mu
- Bachelor, Operating Theatre 3, the First Hospital of Jilin University, Changchun, China. Conception and design of the study, analysis and interpretation of data, manuscript writing
| | - Jing Yu
- Master, Operating Theatre 1, the First Hospital of Jilin University, Changchun, China. Manuscript writing
| | - Junhao Lin
- Master, College of Mechanical Science and Engineering, Jilin University, Changchun, China. Statistics analysis
| | - Chen Li
- Master, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Technical procedures
| | - Baohui Hao
- Master, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Technical procedures, interpretation of data, critical revision
| | - Feng Gu
- Master, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Technical procedures, interpretation of data
| | - Chao Liu
- Master, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Statistics analysis
| | - Lei Tan
- PhD, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Analysis and interpretation of data, critical revision
| | - Dong Zhu
- PhD, Department of Orthopedic Traumatology, the First Hospital of Jilin University, Changchun, China. Conception and design of the study, analysis and interpretation of data, critical revision
| | - Xizheng Zhang
- PhD, Institute of Medical Equipment, Academy of Military Medical Sciences, Tianjin, China. Critical revision
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Applying vibration in early postmenopausal osteoporosis promotes osteogenic differentiation of bone marrow-derived mesenchymal stem cells and suppresses postmenopausal osteoporosis progression. Biosci Rep 2019; 39:BSR20191011. [PMID: 31406012 PMCID: PMC6722487 DOI: 10.1042/bsr20191011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/29/2019] [Accepted: 08/08/2019] [Indexed: 02/05/2023] Open
Abstract
We aimed to evaluate whether applying low magnitude vibration (LMV) in early postmenopausal osteoporosis (PMO) suppresses its progression, and to investigate underlying mechanisms. Rats were randomly divided into Sham (Sham-operated), Sham+V, OVX (ovariectomized), OVX+E2 (estradiol benzoate), OVX+V (LMV at 12–20 weeks postoperatively), and OVX+Vi (LMV at 1–20 weeks postoperatively) groups. LMV was applied for 20 min once daily for 5 days weekly. V rats were loaded with LMV at 12–20 weeks postoperatively. Vi rats were loaded with LMV at 1–20 weeks postoperatively. Estradiol (E2) rats were intramuscularly injected at 12–20 weeks postoperatively once daily for 3 days. The bone mineral densities (BMDs), biomechanical properties, and histomorphological parameters of tibiae were analyzed. In vitro, rat bone marrow-derived mesenchymal stem cells (rBMSCs) were subjected to LMV for 30 min daily for 5 days, or 17β-E2 with or without 1-day pretreatment of estrogen receptor (ER) inhibitor ICI 182,780 (ICI). The mRNA and protein expresion were performed. Data showed that LMV increased BMD, bone strength, and bone mass of rats, and the effects of Vi were stronger than those of E2. In vitro, LMV up-regulated the mRNA and protein expressions of Runx2, Osx, Col I, and OCN and down-regulated PPARγ, compared with E2. The effects of both LMV and E2 on rBMSCs were inhibited by ICI. Altogether, LMV in early PMO suppresses its progression, which is associated with osteogenic differentiation of rBMSCs via up-regulation of ERα and activation of the canonical Wnt pathway. LMV may therefore be superior to E2 for the suppression of PMO progression.
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Alikhani M, Alikhani M, Alansari S, Almansour A, Hamidaddin MA, Khoo E, Lopez JA, Nervina JM, Nho JY, Oliveira SM, Sangsuwon C, Teixeira CC. Therapeutic effect of localized vibration on alveolar bone of osteoporotic rats. PLoS One 2019; 14:e0211004. [PMID: 30695073 PMCID: PMC6350965 DOI: 10.1371/journal.pone.0211004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 01/04/2019] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Vibration, in the form of high frequency acceleration (HFA), stimulates alveolar bone formation under physiologic conditions and during healing after dental extractions. It is not known if HFA has an anabolic effect on osteoporotic alveolar bone. Our objective is to determine if HFA has a regenerative effect on osteoporotic alveolar bone. METHODS AND MATERIALS Adult female Sprague-Dawley rats were divided into five groups: 1) Ovariectomized Group (OVX), 2) Sham-OVX Group that received surgery without ovariectomy, 3) OVX-HFA Group that was ovariectomized and treated daily with HFA, 4) OVX+Static Force Group that was ovariectomized and received the same force as HFA, but without vibration, and 5) Control Group that did not receive any treatment. All animals were fed a low mineral diet for 3 months. Osteoporosis was confirmed by micro-CT of the fifth lumbar vertebra and femoral head. HFA was applied to the maxillary first molar for 5 minutes/day for 28 and 56 days. Maxillae were collected for micro-CT, histology, fluorescent microscopy, protein and RNA analysis, and three-point bending mechanical testing. RESULTS Micro-CT analysis revealed significant alveolar bone osteoporosis in the OVX group. Vibration restored the quality and quantity of alveolar bone to levels similar to the Sham-OVX group. Animals exposed to HFA demonstrated higher osteoblast activity and lower osteoclast activity. Osteogenic transcription factors (RUNX2, Foxo1, Osterix and Wnt signaling factors) were upregulated following vibration, while RANKL/RANK and Sclerostin were downregulated. HFA did not affect serum TRAcP-5b or CTx-1 levels. The osteogenic effect was highest at the point of HFA application and extended along the hemimaxillae this effect did not cross to the contra-lateral side. CONCLUSIONS Local application of vibration generated gradients of increased anabolic metabolism and decreased catabolic metabolism in alveolar bone of osteoporotic rats. Our findings suggest that HFA could be a predictable treatment for diminished alveolar bone levels in osteoporosis patients.
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Affiliation(s)
- Mani Alikhani
- Advanced Graduate Education Program in Orthodontics, Department of Developmental Biology, Harvard School of Dental Medicine, Boston, Massachusetts, United States of America
- The Forsyth Institute, Cambridge, Massachusetts, United States of America
- CTOR Academy, Hoboken, New Jersey, United States of America
| | - Mona Alikhani
- CTOR Academy, Hoboken, New Jersey, United States of America
| | - Sarah Alansari
- The Forsyth Institute, Cambridge, Massachusetts, United States of America
- CTOR Academy, Hoboken, New Jersey, United States of America
| | | | | | - Edmund Khoo
- Department of Orthodontics, New York University College of Dentistry, New York, New York, United States of America
| | - Jose A Lopez
- CTOR Academy, Hoboken, New Jersey, United States of America
| | | | - Joo Y Nho
- CTOR Academy, Hoboken, New Jersey, United States of America
| | - Serafim M Oliveira
- CTOR Academy, Hoboken, New Jersey, United States of America
- Department of Mechanical Engineering, Polytechnic Institute of Viseu, Viseu, Portugal
| | - Chinapa Sangsuwon
- CTOR Academy, Hoboken, New Jersey, United States of America
- Department of Orthodontics, New York University College of Dentistry, New York, New York, United States of America
| | - Cristina C Teixeira
- CTOR Academy, Hoboken, New Jersey, United States of America
- Department of Orthodontics, New York University College of Dentistry, New York, New York, United States of America
- Department of Basic Science & Craniofacial Biology, New York University College of Dentistry, New York, New York, United States of America
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Zhao R, Chen S, Yuan B, Chen X, Yang X, Song Y, Tang H, Yang X, Zhu X, Zhang X. Healing of osteoporotic bone defects by micro-/nano-structured calcium phosphate bioceramics. NANOSCALE 2019; 11:2721-2732. [PMID: 30672553 DOI: 10.1039/c8nr09417a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The micro-/nano-structured calcium phosphate bioceramic exhibited a higher new bone substitution rate in an osteoporotic bone defect rat model.
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Affiliation(s)
- Rui Zhao
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Siyu Chen
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Bo Yuan
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Xuening Chen
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Xi Yang
- Department of Orthopaedics
- West China Hospital of Sichuan University
- Chengdu 610041
- China
| | - Yueming Song
- Department of Orthopaedics
- West China Hospital of Sichuan University
- Chengdu 610041
- China
| | - Hai Tang
- Department of Orthopedics
- Beijing Friendship Hospital
- Capital Medical University
- Beijing 100050
- China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
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Liu H, Zhu R, Wang L, Liu C, Ma R, Qi B, Chen B, Li L, Guo Y, Shi S, Jia Q, Niu J, Zhao D, Mo F, Gao S, Zhang D. Radix Salviae miltiorrhizae
improves bone microstructure and strength through Wnt/β-catenin and osteoprotegerin/receptor activator for nuclear factor-κB ligand/cathepsin K signaling in ovariectomized rats. Phytother Res 2018; 32:2487-2500. [DOI: 10.1002/ptr.6188] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 07/16/2018] [Accepted: 08/13/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Haixia Liu
- Diabetes Research Center; Beijing University of Chinese Medicine; Beijing China
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
| | - Ruyuan Zhu
- Diabetes Research Center; Beijing University of Chinese Medicine; Beijing China
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
| | - Lili Wang
- Diabetes Research Center; Beijing University of Chinese Medicine; Beijing China
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
- Chinese Materia Medica School; Beijing University of Chinese Medicine; Beijing China
| | - Chenyue Liu
- Chinese Materia Medica School; Beijing University of Chinese Medicine; Beijing China
| | - Rufeng Ma
- Diabetes Research Center; Beijing University of Chinese Medicine; Beijing China
- Guang'anmen Hospital; China Academy of Chinese Medical Sciences; Beijing China
| | - Bowen Qi
- Chinese Materia Medica School; Beijing University of Chinese Medicine; Beijing China
| | - Beibei Chen
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
| | - Lin Li
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
| | - Yubo Guo
- Diabetes Research Center; Beijing University of Chinese Medicine; Beijing China
- The Third Affiliated Clinical Hospital; Beijing University of Chinese Medicine; Beijing China
| | - Shepo Shi
- Chinese Materia Medica School; Beijing University of Chinese Medicine; Beijing China
| | - Qiangqiang Jia
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
| | - Jianzhao Niu
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
| | - Dandan Zhao
- Diabetes Research Center; Beijing University of Chinese Medicine; Beijing China
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
| | - Fangfang Mo
- Diabetes Research Center; Beijing University of Chinese Medicine; Beijing China
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
| | - Sihua Gao
- Diabetes Research Center; Beijing University of Chinese Medicine; Beijing China
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
| | - Dongwei Zhang
- Diabetes Research Center; Beijing University of Chinese Medicine; Beijing China
- Traditional Chinese Medicine School; Beijing University of Chinese Medicine; Beijing China
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Zhang K, Zhang J, Chen K, Hu X, Wang Y, Yang X, Zhang X, Fan Y. In vitro and in vivo assessment of nanostructured porous biphasic calcium phosphate ceramics for promoting osteogenesis in an osteoporotic environment. RSC Adv 2018; 8:14646-14653. [PMID: 35540770 PMCID: PMC9079917 DOI: 10.1039/c8ra00768c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 04/02/2018] [Indexed: 11/21/2022] Open
Abstract
Treatment of bone defects in osteoporotic patients with bone substitutes is difficult, due to insufficient osseointegration. The development of appropriate biomaterials to solve the problem requires the assessment of the material performance in an osteoporotic environment, which is rarely investigated. Herein, nanostructured biphasic calcium phosphate (nBCP) ceramics were prepared via the incorporation of hydroxyapatite nanoparticles (HANPs) into porous biphasic CaP (BCP) substrates, leading to an increase of over 500% in the specific surface area. Primary osteoblasts harvested from osteoporotic rats were cultured on the nBCP ceramics, and it was found that the osteoblast functions, including proliferation, alkaline phosphatase activity, osteocalcin secretion and expression of osteogenic genes, were significantly enhanced compared with osteoblasts grown on non-nanostructured BCP ceramics. To further assess the osteoinduction ability, the ceramics were implanted in the femur of osteoporotic rats. Compared to the rats implanted with non-nanostructured BCP ceramics, a higher amount of mechanically matured bone was newly formed in the rats with nBCP ceramics after 6 weeks of implantation. Such enhanced osteoinduction ability of the nBCP ceramics may be due to the incorporated HANPs, as well as the nanostructured topography induced by the HANPs. These results indicate good in vitro and in vivo osteoinductivity of the nBCP ceramics in an osteoporotic environment and offer potential benefits for treating bone defects in osteoporotic patients.
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Affiliation(s)
- Kun Zhang
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Jieyu Zhang
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Kelei Chen
- Zenmindes Biotech Co. Ltd B2, CAS, No 9 4th Section of South Renmin Road Chengdu China +86-28-85410246 +86-28-85417654
| | - Xuefeng Hu
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
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Jing D, Yan Z, Cai J, Tong S, Li X, Guo Z, Luo E. Low-1 level mechanical vibration improves bone microstructure, tissue mechanical properties and porous titanium implant osseointegration by promoting anabolic response in type 1 diabetic rabbits. Bone 2018; 106:11-21. [PMID: 28982588 DOI: 10.1016/j.bone.2017.10.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 09/14/2017] [Accepted: 10/01/2017] [Indexed: 12/31/2022]
Abstract
Type 1 diabetes mellitus (T1DM) is associated with reduced bone mass, increased fracture risk, and impaired bone defect regeneration potential. These skeletal complications are becoming important clinical challenges due to the rapidly increasing T1DM population, which necessitates developing effective treatment for T1DM-associated osteopenia/osteoporosis and bone trauma. This study aims to investigate the effects of whole-body vibration (WBV), an easy and non-invasive biophysical method, on bone microstructure, tissue-level mechanical properties and porous titanium (pTi) osseointegration in alloxan-diabetic rabbits. Six non-diabetic and twelve alloxan-treated diabetic rabbits were equally assigned to the Control, DM, and DM with WBV stimulation (WBV) groups. A cylindrical drill-hole defect was established on the left femoral lateral condyle of all rabbits and filled with a novel non-toxic Ti2448 pTi. Rabbits in the WBV group were exposed to 1h/day WBV (0.3g, 30Hz) for 8weeks. After sacrifice, the left femoral condyles were harvested for histological, histomorphometric and nanoindentation analyses. The femoral sample with 2-cm height above the defect was used for qRT-PCR analysis. The right distal femora were scanned with μCT. We found that all alloxan-treated rabbits exhibited hyperglycemia throughout the experimental period. WBV inhibited the deterioration of cancellous and cortical bone architecture and tissue-level mechanical properties via μCT, histological and nanoindentation examinations. T1DM-induced reduction of bone formation was inhibited by WBV, as evidenced by elevated serum OCN and increased mineral apposition rate (MAR), whereas no alteration was observed in bone resorption marker TRACP5b. WBV also stimulated more adequate ingrowths of mineralized bone tissue into pTi pore spaces, and improved peri-implant bone tissue-level mechanical properties and MAR in T1DM bone defects. WBV mitigated the reductions in femoral BMP2, OCN, Wnt3a, Lrp6, and β-catenin and inhibited Sost mRNA expression but did not alter RANKL or RANK gene expression in T1DM rabbits. Our findings demonstrated that WBV improved bone architecture, tissue-level mechanical properties, and pTi osseointegration by promoting canonical Wnt signaling-mediated skeletal anabolic response. This study not only advances our understanding of T1DM skeletal sensitivity in response to external mechanical cues but also offers new treatment alternatives for T1DM-associated osteopenia/osteoporosis and osseous defects in an economic and highly efficient manner.
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Affiliation(s)
- Da Jing
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China; Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
| | - Zedong Yan
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Jing Cai
- College of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Shichao Tong
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Xiaokang Li
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zheng Guo
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Erping Luo
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China.
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Zhu Y, Zhang K, Zhao R, Ye X, Chen X, Xiao Z, Yang X, Zhu X, Zhang K, Fan Y, Zhang X. Bone regeneration with micro/nano hybrid-structured biphasic calcium phosphate bioceramics at segmental bone defect and the induced immunoregulation of MSCs. Biomaterials 2017; 147:133-144. [DOI: 10.1016/j.biomaterials.2017.09.018] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 09/07/2017] [Accepted: 09/17/2017] [Indexed: 01/07/2023]
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11
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Zhao R, Xie P, Zhang K, Tang Z, Chen X, Zhu X, Fan Y, Yang X, Zhang X. Selective effect of hydroxyapatite nanoparticles on osteoporotic and healthy bone formation correlates with intracellular calcium homeostasis regulation. Acta Biomater 2017; 59:338-350. [PMID: 28698163 DOI: 10.1016/j.actbio.2017.07.009] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 06/20/2017] [Accepted: 07/05/2017] [Indexed: 01/21/2023]
Abstract
Adequate bone substitutes osseointegration has been difficult to achieve in osteoporosis. Hydroxyapatite of the osteoporotic bone, secreted by pathologic osteoblasts, had a smaller crystal size and lower crystallinity than that of the normal. To date, little is known regarding the interaction of synthetic hydroxyapatite nanoparticles (HANPs) with osteoblasts born in bone rarefaction. The present study investigated the biological effects of HANPs on osteoblastic cells derived from osteoporotic rat bone (OVX-OB), in comparison with the healthy ones (SHM-OB). A selective effect of different concentrations of HANPs on the two cell lines was observed that the osteoporotic osteoblasts had a higher tolerance. Reductions in cell proliferation, ALP activity, collagen secretion and osteoblastic gene expressions were found in the SHM-OB when administered with HANPs concentration higher than 25µg/ml. In contrast, those of the OVX-OB suffered no depression but benefited from 25 to 250µg/ml HANPs in a dose-dependent manner. We demonstrated that the different effects of HANPs on osteoblasts were associated with the intracellular calcium influx into the endoplasmic reticulum. The in vivo bone defect model further confirmed that, with a critical HANPs concentration administration, the osteoporotic rats had more and mechanically matured new bone formation than the non-treated ones, whilst the sham rats healed no better than the natural healing control. Collectively, the observed epigenetic regulation of osteoblastic cell function by HANPs has significant implication on defining design parameters for a potential therapeutic use of nanomaterials. STATEMENT OF SIGNIFICANCE In this study, we investigated the biological effects of hydroxyapatite nanoparticles (HANPs) on osteoporotic rat bone and the derived osteoblast. Our findings revealed a previously unrecognized phenomenon that the osteoporotic individuals could benefit from higher concentrations of HANPs, as compared with the healthy individuals. The in vivo bone defect model confirmed that, with a critical HANPs concentration administration, the osteoporotic rats had more mechanically matured new bone formation than the non-treated ones, whilst the sham rats healed no better than the natural healing control. The selective effect of HANPs might be associated with the intracellular calcium influx into the endoplasmic reticulum. Collectively, the observed epigenetic regulation by HANPs has significant implication on defining design parameters for a potential therapeutic use of nanomaterials in a pathological condition.
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Affiliation(s)
- Rui Zhao
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Pengfei Xie
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Kun Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Zhurong Tang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Xuening Chen
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
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Zhang W, Liu C, Hai B, Du G, Wang H, Leng H, Xu Y, Song C. A Convenient In Vivo Model Using Small Interfering RNA Silencing to Rapidly Assess Skeletal Gene Function. PLoS One 2016; 11:e0167222. [PMID: 27893850 PMCID: PMC5125699 DOI: 10.1371/journal.pone.0167222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 11/10/2016] [Indexed: 12/15/2022] Open
Abstract
It is difficult to study bone in vitro because it contains various cell types that engage in cross-talk. Bone biologically links various organs, and it has thus become increasingly evident that skeletal physiology must be studied in an integrative manner in an intact animal. We developed a model using local intraosseous small interfering RNA (siRNA) injection to rapidly assess the effects of a target gene on the local skeletal environment. In this model, 160-g male Sprague-Dawley rats were treated for 1-2 weeks. The left tibia received intraosseous injection of a parathyroid hormone 1 receptor (Pth1r) or insulin-like growth factor 1 receptor (Igf-1r) siRNA transfection complex loaded in poloxamer 407 hydrogel, and the right tibia received the same volume of control siRNA. All the tibias received an intraosseous injection of recombinant human parathyroid hormone (1-34) (rhPTH (1-34)) or insulin-like growth factor-1 (IGF-1). Calcein green and alizarin red were injected 6 and 2 days before euthanasia, respectively. IGF-1R and PTH1R expression levels were detected via RT-PCR assays and immunohistochemistry. Bone mineral density (BMD), microstructure, mineral apposition rates (MARs), and strength were determined by dual-energy X-ray absorptiometry, micro-CT, histology and biomechanical tests. The RT-PCR and immunohistochemistry results revealed that IGF-1R and PTH1R expression levels were dramatically diminished in the siRNA-treated left tibias compared to the right tibias (both p<0.05). Using poloxamer 407 hydrogel as a controlled-release system prolonged the silencing effect of a single dose of siRNA; the mRNA expression levels of IGF-1R were lower at two weeks than at one week (p<0.01). The BMD, bone microstructure parameters, MAR and bone strength were significantly decreased in the left tibias compared to the right tibias (all p<0.05). This simple and convenient local intraosseous siRNA injection model achieved gene silencing with very small quantities of siRNA over a short treatment period (≤7 days).
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Affiliation(s)
- Wen Zhang
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Can Liu
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Bao Hai
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Guohong Du
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
| | - Hong Wang
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Huijie Leng
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Yingsheng Xu
- Department of Neurology, Peking University Third Hospital, Beijing, China
| | - Chunli Song
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
- * E-mail:
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