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Nasir NJN, Arifin N, Noordin KBA, Yusop N. Bone repair and key signalling pathways for cell-based bone regenerative therapy: A review. J Taibah Univ Med Sci 2023; 18:1350-1363. [PMID: 37305024 PMCID: PMC10248876 DOI: 10.1016/j.jtumed.2023.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/11/2023] [Accepted: 05/15/2023] [Indexed: 06/13/2023] Open
Abstract
Advances in cell-based regenerative therapy create new opportunities for the treatment of bone-related disorders and injuries, by improving the reparative phase of bone healing. Apart from the classical approach of bone grafting, the application of cell-based therapies, particularly stem cells (SCs), has gained a lot of attention in recent years. SCs play an important role in regenerative therapy due to their excellent ability to differentiate into bone-forming cells. Regeneration of new bone is regulated by a wide variety of signalling molecules and intracellular networks, which are responsible for coordinating cellular processes. The activated signalling cascade is significantly involved in cell survival, proliferation, apoptosis, and interaction with the microenvironment and other types of cells within the healing site. Despite the increasing evidence from studies conducted on signalling pathways associated with bone formation, the exact mechanism involved in controlling the differentiation stage of transplanted cells is not well understood. Identifying the key activated pathways involved in bone regeneration may allow for precise manipulation of the relevant signalling molecules within the progenitor cell population to accelerate the healing process. The in-depth knowledge of molecular mechanisms would be advantageous in improving the efficiency of personalised medicine and targeted therapy in regenerative medicine. In this review, we briefly introduce the theory of bone repair mechanism and bone tissue engineering followed by an overview of relevant signalling pathways that have been identified to play an important role in cell-based bone regenerative therapy.
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Affiliation(s)
- Nur Julia N. Nasir
- Basic and Medical Sciences Department, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Norsyahida Arifin
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang, Malaysia
| | - Khairul Bariah A.A. Noordin
- Basic and Medical Sciences Department, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Norhayati Yusop
- Basic and Medical Sciences Department, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
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O'Neil LJ, Oliveira CB, Wang X, Navarrete M, Barrera-Vargas A, Merayo-Chalico J, Aljahdali R, Aguirre-Aguilar E, Carlucci P, Kaplan MJ, Carmona-Rivera C. Neutrophil extracellular trap-associated carbamylation and histones trigger osteoclast formation in rheumatoid arthritis. Ann Rheum Dis 2023; 82:630-638. [PMID: 36737106 PMCID: PMC11302494 DOI: 10.1136/ard-2022-223568] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/23/2023] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Neutrophil infiltration into the synovial joint is a hallmark of rheumatoid arthritis (RA), a disease characterised by progressive bone erosion. However, the mechanisms by which neutrophils participate in bone destruction remain unclear. Carbamylation is a posttranslational modification linked to increased bone erosion in RA and we previously showed that carbamylation is present in RA neutrophil extracellular traps (NETs). However, it remains unclear whether NETs and their carbamylated protein cargo directly promote bone destruction and alter osteoclast biology. METHODS NETs and carbamylated NETs (cNETs) were assessed for their capacity to induce osteoclast formation in CD14+ monocytes. Chemical inhibitors and neutralising antibodies were used to elucidate the pathway by which NETs induce osteoclastogenesis. HLA-DRB1*04:01 mice received intra-articular injection of cNETs for 4 weeks. Joints were isolated and assessed for osteoclast formation. Plasma and synovial fluid samples from patients with RA (n=32) were assessed for the presence of carbamylated histone, and correlations to disease specific outcomes were performed. RESULTS We found that NETs, when cNETs, instruct monocytes to undergo rapid osteoclast formation. NET-mediated osteoclastogenesis appears to depend on Toll-like receptor 4 signalling and NET-associated proteins including histones and neutrophil elastase. In vivo, we identified that the number of osteoclasts increased following immunisation with cNETs in HLA-DRB1*04:01 transgenic mice. Furthermore, carbamylated histones are increased in plasma and synovial fluid from patients with RA and correlate with active bone resorption and inflammatory markers. CONCLUSIONS Our results suggest that NETs have a direct role in RA-associated bone erosion by promoting osteoclast formation.
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Affiliation(s)
- Liam J O'Neil
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
- Manitoba Centre for Proteomics and Systems Biology, Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Christopher B Oliveira
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Xinghao Wang
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Mario Navarrete
- Manitoba Centre for Proteomics and Systems Biology, Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Ana Barrera-Vargas
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Medicas y de la Nutricion, Salvador Zubiran, Mexico City, Mexico
| | - Javier Merayo-Chalico
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Medicas y de la Nutricion, Salvador Zubiran, Mexico City, Mexico
| | - Rwan Aljahdali
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Eduardo Aguirre-Aguilar
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Medicas y de la Nutricion, Salvador Zubiran, Mexico City, Mexico
| | - Philip Carlucci
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Mariana J Kaplan
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Carmelo Carmona-Rivera
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
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Zheng Z, He Y, Long L, Gan S, Chen S, Zhang M, Xu J, Fu R, Liao Y, Zhu Z, Wang H, Chen W. Involvement of PI3K/Akt signaling pathway in promoting osteogenesis on titanium implant surfaces modified with novel non-thermal atmospheric plasma. Front Bioeng Biotechnol 2022; 10:975840. [PMID: 36185461 PMCID: PMC9523010 DOI: 10.3389/fbioe.2022.975840] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/25/2022] [Indexed: 11/13/2022] Open
Abstract
Non-thermal atmospheric plasma (NTAP) modification to induce a hydrophilic titanium (Ti) surface with less carbon contamination, has been demonstrated to boost the osteogenic responses. In this study, we investigated the underlying bone formation mechanism of NTAP-Ti, and the involvement of PI3K/Akt signaling pathway in regulating osteogenic activities on NTAP-Ti surfaces. NTAP was employed for Ti activation, and PI3K inhibitor, LY294002, was applied to the suppression of PI3K/Akt pathway. We systematically and quantitatively detected the cell morphology, attachment, proliferation, osteogenic differentiation and mineralization of MC3T3-E1 mouse preosteoblasts, and molecular expressions involved in osteogenesis and PI3K/Akt signaling pathway in vivo and in vitro. A descent in osteoblast proliferation on Ti surfaces in relation to LY294002. Alkaline phosphatase (ALP) activity, as well as matrix mineralization, was mitigated by PI3K inhibitor in NTAP-Ti. Likewise, the expression levels of osteogenesis-related genes [ALP, osteocalcin (Ocn), osteopontin (Opn) and runt-related transcription factor 2 (Runx2)] on NTAP-Ti were notably attenuated by LY294002, as confirmed by the results of osteogenesis-related proteins (ALP, and Runx2) expression analysis. In addition, the expression of PI3K/Akt signal pathway proteins further verified the inhibition of LY294002 on Ti surfaces modified by NTAP. Collectively, the PI3K/Akt signal pathway was involved in the amelioration of osteogenesis induced by NTAP modification. NTAP treatment for Ti activation is promising in augmented osteogenic potential through the activation of PI3K/Akt signal pathway.
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Affiliation(s)
- Zheng Zheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yanjin He
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Li Long
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Shuaiqi Gan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Shujiang Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Min Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jia Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Ruijie Fu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yihan Liao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Zhimin Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Hang Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
- *Correspondence: Hang Wang, ; Wenchuan Chen,
| | - Wenchuan Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
- *Correspondence: Hang Wang, ; Wenchuan Chen,
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A Review of Signaling Transduction Mechanisms in Osteoclastogenesis Regulation by Autophagy, Inflammation, and Immunity. Int J Mol Sci 2022; 23:ijms23179846. [PMID: 36077242 PMCID: PMC9456406 DOI: 10.3390/ijms23179846] [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: 07/09/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
Osteoclastogenesis is an ongoing rigorous course that includes osteoclast precursors fusion and bone resorption executed by degradative enzymes. Osteoclastogenesis is controlled by endogenous signaling and/or regulators or affected by exogenous conditions and can also be controlled both internally and externally. More evidence indicates that autophagy, inflammation, and immunity are closely related to osteoclastogenesis and involve multiple intracellular organelles (e.g., lysosomes and autophagosomes) and certain inflammatory or immunological factors. Based on the literature on osteoclastogenesis induced by different regulatory aspects, emerging basic cross-studies have reported the emerging disquisitive orientation for osteoclast differentiation and function. In this review, we summarize the partial potential therapeutic targets for osteoclast differentiation and function, including the signaling pathways and various cellular processes.
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Use of Network Pharmacology and Molecular Docking Technology to Analyze the Mechanism of Action of Velvet Antler in the Treatment of Postmenopausal Osteoporosis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:7144529. [PMID: 34671409 PMCID: PMC8523247 DOI: 10.1155/2021/7144529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 11/17/2022]
Abstract
Deer velvet antlers are the young horns of male deer that are not ossified and densely overgrown. Velvet antler and its preparations have been widely used in the treatment of postmenopausal osteoporosis (PMOP) in recent years, although its mechanism of action in the human body remains unclear. To screen the effective ingredients and targets of velvet antler in the treatment of PMOP using network pharmacology and to explore the potential mechanisms of velvet antler action in such treatments, we screened the active ingredients and targets of velvet antler in the BATMAN-TCM database. We also screened the relevant targets of PMOP in the GeneCards and OMIM databases and then compared the targets at the intersection of both velvet antler and PMOP. We used Cytoscape 3.7.2 software to construct a network diagram of "disease-drug-components-targets" and a protein-protein interaction (PPI) network through the STRING database and screened out the core targets; the R language was then used to analyze the shared targets between antler and PMOP for GO-enrichment analysis and KEGG pathway-annotation analysis. Furthermore, we used the professional software Maestro 11.1 to verify the predictive analysis based on network pharmacology. Hematoxylin-eosin (H&E) staining and micro-CT were used to observe the changes in trabecular bone tissue, further confirming the results of network pharmacological analysis. The potentially effective components of velvet antler principally include 17β-E2, adenosine triphosphate, and oestrone. These components act on key target genes such as AKT1, IL6, MAPK3, TP53, EGFR, SRC, and TNF and regulate the PI3K/Akt-signaling and MAPK-signaling pathways. These molecules participate in a series of processes such as cellular differentiation, apoptosis, metabolism, and inflammation and can ultimately be used to treat PMOP; they reflect the overall regulation, network regulation, and protein interactions.
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Chen W, Xian G, Gu M, Pan B, Wu X, Ye Y, Zheng L, Zhang Z, Sheng P. Autophagy inhibitors 3-MA and LY294002 repress osteoclastogenesis and titanium particle-stimulated osteolysis. Biomater Sci 2021; 9:4922-4935. [PMID: 34052845 DOI: 10.1039/d1bm00691f] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Aseptic loosening caused by peri-implant osteolysis (PIO) is a common complication after joint replacement, and there is still no better treatment than revision surgery. The wear particle-induced inflammation response, especially subsequent osteoclastic bone resorption, is responsible for PIO. As the importance of wear particles in inducing autophagy in cells around the prosthesis in PIO has been discovered, this might be a central process underlying aseptic loosening. However, the role of autophagy induced by wear particles in osteoclastogenesis during PIO remains unclear. In this study, we investigated the role of autophagy in osteoclastogenesis and verified it in a mouse calvarial osteolysis model. We found that osteoclasts were increased in the interface membranes of patients with aseptic loosening. In vitro, knocking down the Atg5 gene or using autophagy inhibitors (3-MA, LY294002) to inhibit autophagy was found to repress osteoclastogenesis and decrease expression of the osteoclast-related genes TRAP, cathepsin K, and matrix metalloprotein 9 (MMP-9) with or without titanium (Ti) particles. In vivo, 3-MA and LY294002 repressed Ti particle-stimulated osteolysis and osteoclastogenesis and reduced expression of the pro-inflammatory factors TNF-α, IL-1β, and IL-6. Our results suggest that 3-MA and LY294002 might be the potential medicines to prevent and treat PIO and aseptic loosening.
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Affiliation(s)
- Weishen Chen
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China. and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Guoyan Xian
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China. and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Minghui Gu
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China. and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Baiqi Pan
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China. and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Xiaoyu Wu
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China. and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Yongyu Ye
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China. and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Linli Zheng
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China. and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Ziji Zhang
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China. and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Puyi Sheng
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China. and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
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Shu H, Zhao H, Shi Y, Lu C, Li L, Zhao N, Lu A, He X. Transcriptomics-based analysis of the mechanism by which Wang-Bi capsule alleviates joint destruction in rats with collagen-induced arthritis. Chin Med 2021; 16:31. [PMID: 33845855 PMCID: PMC8042720 DOI: 10.1186/s13020-021-00439-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/14/2021] [Accepted: 03/25/2021] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic autoimmune disease accompanied with joint destruction that often leads to disability. Wang-Bi capsule (WB), a traditional Chinese medicine-based herbs formula, has exhibited inhibition effect on joint destruction of collagen-induced arthritis (CIA) animal model in our previous study. But its molecular mechanisms are still obscure. METHODS CIA rats were treated intragastrical with WB for eight weeks, and the effect of joints protection were evaluated by hematoxylin and eosin (H&E) staining, safranin O fast green staining, tartrate-resistant acid phosphatase (TRAP) staining and micro‑CT scanning analysis. The transcriptomic of tarsal joints were used to investigate how WB alleviated joint destruction. RESULTS The histological examination of ankle joints showed WB alleviated both cartilage damage and bone destruction of CIA rats. This protective effect on joints were further evidenced by micro-CT analysis. The transcriptomic analysis showed that WB prominently changed 12 KEGG signaling pathways ("calcium signaling pathway", "cAMP signaling pathway", "cell adhesion molecules", "chemokine signaling pathway", "complement and coagulation cascades", "MAPK signaling pathway", "NF-kappa B signaling pathway", "osteoclast differentiation", "PI3K-Akt signaling pathway", "focal adhesion", "Gap junction" and "Rap1 signaling pathway") associated with bone or cartilage. Several genes (including Il6, Tnfsf11, Ffar2, Plg, Tnfrsf11b, Fgf4, Fpr1, Siglec1, Vegfd, Cldn1, Cxcl13, Chad, Arrb2, Fgf9, Egfr) regulating bone resorption, bone formation and cartilage development were identified by further analysis. Meanwhile, these differentially expressed genes were validated by real-time quantitative PCR. CONCLUSIONS Overall, the protective effect of WB treatment on joint were confirmed in CIA rats, and its basic molecular mechanisms may be associated with regulating some genes (including Il6, Tnfsf11, Ffar2 and Plg etc.) involved in bone resorption, bone formation and cartilage development.
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Affiliation(s)
- Haiyang Shu
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Hanxiao Zhao
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yingjie Shi
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Cheng Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Li Li
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ning Zhao
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Aiping Lu
- Law Sau Fai Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
| | - Xiaojuan He
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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Ma J, Zhu L, Zhou Z, Song T, Yang L, Yan X, Chen A, Ye TW. The calcium channel TRPV6 is a novel regulator of RANKL-induced osteoclastic differentiation and bone absorption activity through the IGF-PI3K-AKT pathway. Cell Prolif 2020; 54:e12955. [PMID: 33159483 PMCID: PMC7791174 DOI: 10.1111/cpr.12955] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/01/2020] [Accepted: 10/20/2020] [Indexed: 12/18/2022] Open
Abstract
Objectives Calcium ion signals are important for osteoclast differentiation. Transient receptor potential vanilloid 6 (TRPV6) is a regulator of bone homeostasis. However, it was unclear whether TRPV6 was involved in osteoclast formation. Therefore, the aim of this study was to evaluate the role of TPRV6 in bone metabolism and to clarify its regulatory role in osteoclasts at the cellular level. Materials and methods Bone structure and histological changes in Trpv6 knockout mice were examined using micro‐computed tomography and histological analyses. To investigate the effects of Trpv6 on osteoclast function, we silenced or overexpressed Trpv6 in osteoclasts via lentivirus transfection, respectively. Osteoclast differentiation and bone resorption viability were measured by tartrate‐resistant acid phosphatase (TRAP) staining and pit formation assays. The expression of osteoclast marker genes, including cathepsin k, DC‐STAMP, Atp6v0d2 and TRAP, was measured by qRT‐PCR. Cell immunofluorescence and Western blotting were applied to explore the mechanisms by which the IGF‐PI3K‐AKT pathway was involved in the regulation of osteoclast formation and bone resorption by Trpv6. Results We found that knockout of Trpv6 induced osteoporosis and enhanced bone resorption in mice, but did not affect bone formation. Further studies showed that Trpv6, which was distributed on the cell membrane of osteoclasts, acted as a negative regulator for osteoclast differentiation and function. Mechanistically, Trpv6 suppressed osteoclastogenesis by decreasing the ratios of phosphoprotein/total protein in the IGF–PI3K–AKT signalling pathway. Blocking of the IGF–PI3K–AKT pathway significantly alleviated the inhibitory effect of Trpv6 on osteoclasts formation. Conclusions Our study confirmed the important role of Trpv6 in bone metabolism and clarified its regulatory role in osteoclasts at the cellular level. Taken together, this study may inspire a new strategy for the treatment of osteoporosis.
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Affiliation(s)
- Jun Ma
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China.,Department of Health Statistics, The Second Military Medical University, Shanghai, China
| | - Lei Zhu
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Zhibin Zhou
- Department of Orthopedic Surgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Tengfei Song
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Lei Yang
- Department of Orthopedic Surgery, The 2nd affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xu Yan
- Department of Orthopedic Surgery, Naval Characteristic Medical Center, The Second Military Medical University, Shanghai, China
| | - Aimin Chen
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Tian Wen Ye
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
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Dong X, Li H, E L, Cao J, Guo B. Bioceramic akermanite enhanced vascularization and osteogenic differentiation of human induced pluripotent stem cells in 3D scaffolds in vitro and vivo. RSC Adv 2019; 9:25462-25470. [PMID: 35530104 PMCID: PMC9070079 DOI: 10.1039/c9ra02026h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 06/19/2019] [Indexed: 01/10/2023] Open
Abstract
A growing number of studies suggest that the modulation of cell differentiation by biomaterials is critical for tissue engineering. In previous work, we demonstrated that human induced pluripotent stem cells (iPSCs) are remarkably promising seed cells for bone tissue engineering. In addition, we found that the ionic products of akermanite (Aker) are potential inducers of osteogenic differentiation of iPSCs. Furthermore, composite scaffolds containing polymer and bioceramics have more interesting properties compared to pure bioceramic scaffolds for bone tissue engineering. The characteristic of model biomaterials in bone tissue engineering is their ability to control the osteogenic differentiation of stem cells and simultaneously induce the angiogenesis of endothelia cells. Thus, this study aimed at investigating the effects of poly(lactic-co-glycolic acid)/Aker (PLGA-Aker) composite scaffolds on angiogenic and osteogenic differentiation of human iPSCs in order to optimize the scaffold compositions. The results from Alizarin Red S staining, qRT-PCR analysis of osteogenic genes (BMP2, RUNX2, ALP, COL1 and OCN) and angiogenic genes (VEGF and CD31) demonstrated that PLGA/Aker composite scaffolds containing 10% Aker exhibited the highest stimulatory effects on the osteogenic and angiogenic differentiation of human iPSCs among all scaffolds. After the scaffolds were implanted in nu/nu mice subcutaneous pockets and calvarial defects, H&E staining, BSP immunostaining, qRT-PCR analysis and micro-CT analysis (BMD, BV/TV) indicated that PLGA + 10% Aker scaffolds enhanced the vascularization and osteogenic differentiation of human iPSCs and stimulated the repair of bone defects. Taken together, our work indicated that combining scaffolds containing silicate bioceramic Aker and human iPSCs is a promising approach for the enhancement of bone regeneration. Bioceramics akermanite enhanced vascularization and osteogenic differentiation of human iPSCs in 3D scaffolds in vitro and vivo.![]()
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Affiliation(s)
- Xixi Dong
- Stomatology Department
- General Hospital of Chinese PLA
- Beijing 100853
- China
| | - Haiyan Li
- Med-X Research Institute
- School of Biomedical Engineering
- Shanghai Jiao Tong University
- Shanghai 200030
- China
| | - Lingling E
- Stomatology Department
- General Hospital of Chinese PLA
- Beijing 100853
- China
| | - Junkai Cao
- Stomatology Department
- General Hospital of Chinese PLA
- Beijing 100853
- China
| | - Bin Guo
- Stomatology Department
- General Hospital of Chinese PLA
- Beijing 100853
- China
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Liu J, Zhang Z, Guo Q, Dong Y, Zhao Q, Ma X. Syringin prevents bone loss in ovariectomized mice via TRAF6 mediated inhibition of NF-κB and stimulation of PI3K/AKT. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 42:43-50. [PMID: 29655696 DOI: 10.1016/j.phymed.2018.03.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/04/2018] [Accepted: 03/11/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Syringin, also called eleutheroside B, is a main bioactive phenolic glycoside in Acanthopanax senticosus (Rupr. et Maxim.) Harms. Based on the "kidney dominates bone" theory of TCM, A. senticosus can strengthen bone and Syringin may be one of the responsibilities. PURPOSE The objectives of this study were to estimate the osteoporotic activity of Syringin and reveal the possible molecular mechanisms in vivo. METHODS Sixty female ICR mice were randomly assigned into sham operated group (SHAM, treated with vehicle) and five ovariectomized subgroups (n = 10 each), treated with vehicle as OVX group, estradiol valerate (EV, 1 mg/kg/day) as positive group, and Syringin (10, 20 and 40 mg/kg/day) as low, moderate and high dosage groups. The therapeutic effect of Syringin against osteoporosis was systematically analyzed by determining the bone mineral density (BMD), bone biomechanical properties, bone microarchitecture and serum biochemical parameters, and the molecular mechanism was also evaluated. RESULTS After three months of orally administrated intervention, Syringin (10, 20 and 40 mg/kg/day) significantly improved the BMD, bone maximum load and trabecular bone microarchitecture in ovariectomized mice, evidenced by the increased bone mineral content, tissue mineral content, tissue mineral density, trabecular thickness and trabecular number, as well as the decreased trabecular separation in OVX mice. Meanwhile, the activities of tartrate-resistant acid phosphatase, deoxypyridinoline and cathepsin K in OVX mice were also inhibited by Syringin, while the increased body weight and decreased uterus weight seemed not influenced by Syringin administration. Concerning the underlying molecular mechanisms, Syringin significantly downregulated the expression of tumor-necrosis factor receptor-associated factor 6 (TRAF6), nuclear factor kappa B (NF-κB) and receptor activator of nuclear factor kappa B ligand (RANKL) proteins levels, upregulated the expression of osteoprotegerin (OPG), phosphoinositide 3-kinase (PI3K) and protein kinase B (AKT) levels, suggesting that Syringin prevented bone lost by TRAF6-mediated inhibition of NF-κB and stimulation of PI3K/AKT, and subsequently increasing the OPG/RANKL ratio and inhibiting the osteoclastogenesis, finally promoting bone formation. CONCLUSIONS All of the data implied Syringin possessed the potent anti-osteoporosis activity on ovariectomized mice, and the underlying molecular mechanism may be related to the NF-κB and PI3K/AKT signaling pathways.
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Affiliation(s)
- Jingjing Liu
- Department of Pharmaceutical analysis, School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan 750004, China
| | - Zhuanzhuan Zhang
- Department of Pharmaceutical analysis, School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan 750004, China
| | - Qi Guo
- Department of Pharmaceutical analysis, School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan 750004, China
| | - Yanhong Dong
- Department of Pharmaceutical analysis, School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan 750004, China
| | - Qipeng Zhao
- Department of Pharmaceutical analysis, School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan 750004, China; Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 692 Shenli Street, Yinchuan 750004, China
| | - Xueqin Ma
- Department of Pharmaceutical analysis, School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan 750004, China; Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 692 Shenli Street, Yinchuan 750004, China.
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Sun M, Chi G, Xu J, Tan Y, Xu J, Lv S, Xu Z, Xia Y, Li L, Li Y. Extracellular matrix stiffness controls osteogenic differentiation of mesenchymal stem cells mediated by integrin α5. Stem Cell Res Ther 2018; 9:52. [PMID: 29490668 PMCID: PMC5831741 DOI: 10.1186/s13287-018-0798-0] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 01/18/2018] [Accepted: 02/05/2018] [Indexed: 01/12/2023] Open
Abstract
Background Human mesenchymal stem cell (hMSC) differentiation into osteoblasts has important clinical significance in treating bone injury, and the stiffness of the extracellular matrix (ECM) has been shown to be an important regulatory factor for hMSC differentiation. The aim of this study was to further delineate how matrix stiffness affects intracellular signaling through integrin α5/β1, FAK, and Wnt signaling, subsequently regulating the osteogenic phenotype of hMSCs. Methods hMSCs were cultured on tunable polyacrylamide hydrogels coated with fibronectin with stiffness corresponding to a Young’s modulus of 13–16 kPa and 62–68 kPa. After hMSCs were cultured on gels for 1 week, gene expression of alpha-1typeIcollagen, BGLAP, and RUNX2 were evaluated by real-time PCR. After hMSCs were cultured on gels for 24 h, signaling molecules relating to integrin α5 (FAK, ERK, p-ERK, Akt, p-Akt, GSK-3β, p-GSK-3β, and β-catenin) were evaluated by western blot analysis. Results Osteogenic differentiation was increased on 62–68 kPa ECM, as evidenced by alpha-1 type I collagen, BGLAP, and RUNX2 gene expression, calcium deposition, and ALP staining. In the process of differentiation, gene and protein expression of integrin α5/β1 increased, together with protein expression of the downstream signaling molecules FAK, p-ERK, p-Akt, GSK-3β, p-GSK-3β, and β-catenin, indicating that these molecules can affect the osteogenic differentiation of hMSCs. An antibody blocking integrin α5 suppressed the stiffness-induced expression of all osteoblast markers examined. In particular, alpha-1 type I collagen, RUNX2, and BGLAP were significantly downregulated, indicating that integrin α5 regulates hMSC osteogenic differentiation. Downstream expression of FAK, ERK, p-ERK, and β-catenin protein was unchanged, whereas Akt, p-Akt, GSK-3β, and p-GSK-3β were upregulated. Moreover, expression of Akt and p-Akt was upregulated with anti-integrin α5 antibody, but no difference was observed for FAK, ERK, and p-ERK between the with or without anti-integrin α5 antibody groups. At the same time, expression of GSK-3β and p-GSK-3β was upregulated and β-catenin levels showed no difference between the groups with or without anti-integrin α5 antibody. Since Akt, p-Akt, GSK-3β, and p-GSK-3β displayed the same changes between the groups with or without anti-integrin α5 antibody, we then detected the links among them. Expression of p-Akt and p-GSK-3β was reduced effectively in the presence of the Akt inhibitor Triciribine. However, Akt, GSK-3β, and β-catenin were unchanged. These results suggested that expression of p-GSK-3β was regulated by p-Akt on 62–68 kPa ECM. Conclusions Taken together, our results provide evidence that matrix stiffness (62–68 kPa) affects the osteogenic outcome of hMSCs through mechanotransduction events that are mediated by integrin α5. Electronic supplementary material The online version of this article (10.1186/s13287-018-0798-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Meiyu Sun
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China
| | - Guangfan Chi
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China
| | - Juanjuan Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China
| | - Ye Tan
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China
| | - Jiayi Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China
| | - Shuang Lv
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China
| | - Ziran Xu
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China
| | - Yuhan Xia
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China
| | - Lisha Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China.
| | - Yulin Li
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, 130021, People's Republic of China.
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Open-cellular metal implant design and fabrication for biomechanical compatibility with bone using electron beam melting. J Mech Behav Biomed Mater 2017; 76:164-177. [DOI: 10.1016/j.jmbbm.2017.02.019] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 02/15/2017] [Accepted: 02/17/2017] [Indexed: 12/18/2022]
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Tan JY, Lei LH, Chen XT, Ding PH, Wu YM, Chen LL. AKT2 is involved in the IL‑17A‑mediated promotion of differentiation and calcification of murine preosteoblastic MC3T3‑E1 cells. Mol Med Rep 2017; 16:5833-5840. [PMID: 28849233 PMCID: PMC5865781 DOI: 10.3892/mmr.2017.7315] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 06/27/2017] [Indexed: 11/06/2022] Open
Abstract
Interleukin (IL)‑17A exhibits pleiotropic biological activities and serves a role in the progression of periodontitis. However, data describing the association between IL‑17 and osteogenesis are not conclusive. It was previously demonstrated that RAC‑β serine/threonine protein kinase (AKT2)‑specific knockdown in MC3T3‑E1 cells weakened osteogenic effects. The role of AKT2 in the regulation of IL‑17A for osteoblast differentiation and calcification remains unclear. The MTT method was adopted in the present study to assess cell proliferation; cell cycle distribution was analyzed by flow cytometry. Following osteogenic induction treatment, the involvement of phosphatidylinositol 3‑kinase (PI3K) and phosphorylated‑PI3K was evaluated by western blotting. The effects of IL‑17A on osteogenesis‑associated markers, including Runt‑related transcription factor 2 (Runx‑2), alkaline phosphatase (ALP) and osteocalcin (OCN) were evaluated by reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) analysis. An ALP activity assay and Alizarin Red S staining were used to assess the differentiation and calcification functions. AKT2 knockdown inhibited MC3T3‑E1 cell proliferation, inducing significantly increased G0/G1 cell counts, and reduced S and G2/M cell numbers. IL‑17A exerted no significant effects. The protein levels of p‑PI3K, gene expression levels of IL‑17A, Runx‑2, ALP and OCN, and relative ALP activity and calcification areas were increased in the induction group, and these effects were markedly promoted by treatment with IL‑17A. AKT2 knockdown in MC3T3‑E1 cells resulted in reduced IL‑17A‑induced differentiation and calcification, although it was not completely inhibited. The results of the present study suggested that AKT2 signaling was required for MC3T3‑E1 cell proliferation. IL‑17A promoted osteoblast differentiation and calcification in a partly AKT2‑dependent manner in MC3T3‑E1 cells in vitro, possibly reflecting compensation by other signaling pathways. The results of the present study may offer novel perspectives to guide the clinical strategy for the prevention and treatment of periodontitis.
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Affiliation(s)
- Jing-Yi Tan
- Department of Oral Medicine, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Li-Hong Lei
- Department of Oral Medicine, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Xiao-Tao Chen
- Department of Oral Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang 830001, P.R. China
| | - Pei-Hui Ding
- Department of Oral Medicine, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Yan-Min Wu
- Department of Oral Medicine, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Li-Li Chen
- Department of Oral Medicine, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
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He D, Wang RX, Mao JP, Xiao B, Chen DF, Tian W. Three-dimensional spheroid culture promotes the stemness maintenance of cranial stem cells by activating PI3K/AKT and suppressing NF-κB pathways. Biochem Biophys Res Commun 2017; 488:528-533. [PMID: 28522297 DOI: 10.1016/j.bbrc.2017.05.080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 05/14/2017] [Indexed: 12/11/2022]
Abstract
Multipotent stem cells are one of the most powerful tools available for the bone regeneration. However, owing to various limitations, including a lack of tissue-specific stem cell identification, reconstruction of large cranial bone defects remains challenging. In the current study, we isolated a population of Sca-1+CD105+CD140a+ stem cells from adult mouse calvarium and cultured them as three-dimensional spheroids. Although these cells shared similar surface antigens when grown in either monolayers or spheroids, the cranial stem cells grown in spheroids possessed enhanced multipotency and proliferation capacity. In addition, the cranial stem cells in spheroids were found to express high levels of the self-renewal transcription factors Nanog, Oct-4, and Sox-2. Mechanistically, we found that three-dimensional spheroid culture suppressed NF-κB pathways, but activated the PI3K/AKT pathway in cranial stem cells. More importantly, activation of NF-κB pathways or specific inhibition of the PI3K/AKT pathway partially impaired spheroid formation and suppressed expression of self-renewal transcription factors. In summary, these findings reveal a novel effect of spheroid culture in promoting the maintenance of cranial stem cell stemness and indicate that NF-κB and PI3K/AKT pathways might be involved in the stemness maintenance.
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Affiliation(s)
- Da He
- Department of Spine Surgery, Bei Jing JiShuiTan Hospital, Beijing, China
| | - Ren-Xian Wang
- Department of Bone Tissue Engineering, Bei Jing Research Institute of Traumatology and Orthopaedics, Beijing, China
| | - Jian-Ping Mao
- Department of Spine Surgery, Bei Jing JiShuiTan Hospital, Beijing, China
| | - Bin Xiao
- Department of Spine Surgery, Bei Jing JiShuiTan Hospital, Beijing, China
| | - Da-Fu Chen
- Department of Bone Tissue Engineering, Bei Jing Research Institute of Traumatology and Orthopaedics, Beijing, China.
| | - Wei Tian
- Department of Spine Surgery, Bei Jing JiShuiTan Hospital, Beijing, China.
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Preparative Purification of Bioactive Compounds from Flos Chrysanthemi Indici and Evaluation of Its Antiosteoporosis Effect. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:2587201. [PMID: 27885328 PMCID: PMC5112322 DOI: 10.1155/2016/2587201] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 10/13/2016] [Indexed: 12/15/2022]
Abstract
To understand the material basis and underlying molecular machinery of antiosteoporosis activity of the Flos Chrysanthemi Indici (FCI), the consequences of ethanol extract on the bone loss in mice induced due to ovariectomy (OVX) was evaluated. Also, the antiosteoporosis fraction obtained from the FCI ethanol extract was isolated and purified using a preparative high-speed countercurrent chromatography (HSCCC). The in vitro impact of the compounds was investigated on osteoblast proliferation and differentiation. The results revealed that ethyl acetate fraction with robust in vivo antiosteoporosis activity was obtained. The important compounds purified by HSCCC using gradient elution system included acacetin, apigenin, luteolin, and linarin. The four compounds enhanced the differentiation and proliferation of osteoblasts in MC3T3-E1 cells. They also augmented the mRNA levels of runt-related transcription factor 2 (Runx2), osteocalcin (OCN), osteopontin (OPN), and type I collagen (COL I). The AKT signaling pathway was also activated in MC3T3-E1 cells by the four compounds. The present study demonstrated that the antiosteoporosis effects of FCI did not depend on a single component, and HSCCC efficiently isolated and purified the antiosteoporosis bioactive compounds from FCI.
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Lack of SIRPα phosphorylation and concomitantly reduced SHP-2-PI3K-Akt2 signaling decrease osteoblast differentiation. Biochem Biophys Res Commun 2016; 478:268-273. [PMID: 27422603 DOI: 10.1016/j.bbrc.2016.07.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 07/08/2016] [Indexed: 12/27/2022]
Abstract
Normal differentiation of bone forming osteoblasts is a prerequisite for maintenance of skeletal health and is dependent on intricate cellular signaling pathways, including the essential transcription factor Runx2. The cell surface glycoprotein CD47 and its receptor signal regulatory protein alpha (SIRPα) have both been suggested to regulate bone cell differentiation. Here we investigated osteoblastic differentiation of bone marrow stromal cells from SIRPα mutant mice lacking the cytoplasmic signaling domain of SIRPα. An impaired osteoblastogenesis in SIRPα-mutant cell cultures was demonstrated by lower alkaline phosphatase activity and less mineral formation compared to wild-type cultures. This reduced osteoblastic differentiation potential in SIRPα-mutant stromal cells was associated with a significantly reduced expression of Runx2, osterix, osteocalcin, and alkaline phosphatase mRNA, as well as a reduced phosphorylation of SHP-2 and Akt2, as compared with that in wild-type stromal cells. Addition of a PI3K-inhibitor to wild-type stromal cells could mimic the impaired osteoblastogenesis seen in SIRPα-mutant cells. In conclusion, our data suggest that SIRPα signaling through SHP-2-PI3K-Akt2 strongly influences osteoblast differentiation from bone marrow stromal cells.
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Xia L, Yin Z, Mao L, Wang X, Liu J, Jiang X, Zhang Z, Lin K, Chang J, Fang B. Akermanite bioceramics promote osteogenesis, angiogenesis and suppress osteoclastogenesis for osteoporotic bone regeneration. Sci Rep 2016; 6:22005. [PMID: 26911441 PMCID: PMC4766478 DOI: 10.1038/srep22005] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 02/05/2016] [Indexed: 11/09/2022] Open
Abstract
It is a big challenge for bone healing under osteoporotic pathological condition with impaired angiogenesis, osteogenesis and remodeling. In the present study, the effect of Ca, Mg, Si containing akermanite bioceramics (Ca2MgSi2O7) extract on cell proliferation, osteogenic differentiation and angiogenic factor expression of BMSCs derived from ovariectomized rats (BMSCs-OVX) as well as the expression of osteoclastogenic factors was evaluated. The results showed that akermanite could enhance cell proliferation, ALP activity, expression of Runx2, BMP-2, BSP, OPN, OCN, OPG and angiogenic factors including VEGF and ANG-1. Meanwhile, akermanite could repress expression of osteoclastogenic factors including RANKL and TNF-α. Moreover, akermanite could activate ERK, P38, AKT and STAT3 signaling pathways, while crosstalk among these signaling pathways was evident. More importantly, the effect of akermanite extract on RANKL-induced osteoclastogenesis was evaluated by TRAP staining and real-time PCR assay. The results showed that akermanite could suppress osteoclast formation and expression of TRAP, cathepsin K and NFATc1. The in vivo experiments revealed that akermanite bioceramics dramatically stimulated osteogenesis and angiogenesis in an OVX rat critical-sized calvarial defect model. All these results suggest that akermanite bioceramics with the effects of Mg and Si ions on osteogenesis, angiogenesis and osteoclastogenesis are promising biomaterials for osteoporotic bone regeneration.
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Affiliation(s)
- Lunguo Xia
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Zhilan Yin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Lixia Mao
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Xiuhui Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Jiaqiang Liu
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Xinquan Jiang
- Oral Bioengineering and regenerative medicine Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Zhiyuan Zhang
- Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Kaili Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.,School &Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Bing Fang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
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Liu Y, Huang N, Yu Y, Zheng C, Deng N, Liu J. Bioactive SiO2@Ru nanoparticles for osteogenic differentiation of mesenchymal stem cells via activation of Akt signaling pathways. J Mater Chem B 2016; 4:4389-4401. [DOI: 10.1039/c5tb01898f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The surface chemistry of materials has an interactive influence on cell behavior.
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Affiliation(s)
- Ying Liu
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- China
| | - Na Huang
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- China
| | - Yunfei Yu
- Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering
- Biomedicine Translational Institute
- Jinan University
- Guangzhou 510632
- China
| | - Chuping Zheng
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- China
| | - Ning Deng
- Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering
- Biomedicine Translational Institute
- Jinan University
- Guangzhou 510632
- China
| | - Jie Liu
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- China
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Ge P, Cui Y, Liu F, Luan J, Zhou X, Han J. L-carnitine affects osteoblast differentiation in NIH3T3 fibroblasts by the IGF-1/PI3K/Akt signalling pathway. Biosci Trends 2015; 9:42-8. [PMID: 25787908 DOI: 10.5582/bst.2015.01000] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fibroblasts in soft tissues are one of the progenitors of ectopic calcification. Our previous experiment found that the serum concentrations of small metabolite L-carnitine (LC) decreased in an ectopic calcification animal model, indicating LC is a potential calcification or mineralization inhibitor. In this study, we investigated the effect of LC on NIH3T3 fibroblast osteoblast differentiation, and explored its possible molecular mechanisms. Two concentrations of LC (10 μM and 100 μM) were added in Pi-induced NIH3T3 fibroblasts, cell proliferation was compared by MTT assays, osteoblast differentiation was evaluated by ALP activity, mineralized nodules formation, calcium deposition, and expressions of the osteogenic marker genes. Our results indicated that 10 μM LC increased the proliferation of NIH3T3 cells, but 100 μM LC slightly inhibited cell proliferation. 100 μM LC inhibits NIH3T3 differentiation as evidenced by decreases in ALP activity, mineralized nodule formation, calcium deposition, and down-regulation of the osteogenic marker genes ALP, Runx2 and OCN, meanwhile 10 μM of LC exerts an opposite effect that promotes NIH3T3 osteogenesis. Mechanistically, 100 μM LC significantly inhibits IGF-1/PI3K/Akt signalling, while 10 μM LC slightly activates this pathway. Our study suggests that a decease in LC level might contribute to the development of ectopic calcification in fibroblasts by affecting IGF-1/PI3K/Akt, and addition of LC may benefit patients with ectopic calcification.
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Affiliation(s)
- Pinglan Ge
- Key Laboratory for Rare Disease Research of Shandong Province, Key Laboratory for Biotech Drugs of the Ministry of Health, 2 School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Science, Ji'nan, Shandong, China
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Over-expression of neurotrophin 3 in human aortic valves affected by calcific disease induces the osteogenic responses via the Trk-Akt pathway. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1940-9. [PMID: 26122822 DOI: 10.1016/j.bbadis.2015.06.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 06/23/2015] [Accepted: 06/25/2015] [Indexed: 01/04/2023]
Abstract
UNLABELLED Calcific aortic valve disease (CAVD) is a leading cardiovascular disorder in the elderly. While aortic valve interstitial cells (AVICs) are the main cells that express osteogenic mediators, the molecular mechanism that mediates AVIC osteogenic responses is incompletely understood. This study aims to identify pro-osteogenic factors in human AVICs affected by CAVD. METHODS AND RESULTS Microarray analysis identified 11 up-regulated genes in AVICs of diseased valves. Among these genes, mRNA levels of neurotrophin 3 (NT3) increased by 2 fold. Higher levels of NT3 protein in diseased aortic valves and diseased AVICs were confirmed by immunofluorescent staining and immunoblotting, respectively. An exposure of AVICs of normal valves to recombinant human NT3 (0.025-0.10μg/mL) up-regulated the production of Runx2, TGF-β1 and BMP-2 in a dose-dependent fashion. NT3 also promotes calcium deposit formation. The pro-osteogenic effect of NT3 was not affected by neutralization of Toll-like receptor 2 or 4. Interestingly, mRNA encoding neural growth factor receptors (TrkA, TrkB, TrkC and p75 NTR) was detectable in human AVICs. Inhibition of Trk receptors markedly reduced the effects of NT3 on Runx2, TGF-β1 and BMP-2 production, calcium deposit formation and Akt phosphorylation. Further, inhibition of Akt also reduced the pro-osteogenic effects of NT3. CONCLUSIONS AVICs of diseased human aortic valves express higher levels of NT3. NT3 up-regulates the production of Runx2, TGF-β1 and BMP-2, and promotes calcium deposit formation in human AVICs via the Trk-Akt pathway. Thus, NT3 is a novel pro-osteogenic factor in aortic valves and may play a role in valvular calcification.
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Wu Y, Xia L, Zhou Y, Ma W, Zhang N, Chang J, Lin K, Xu Y, Jiang X. Evaluation of osteogenesis and angiogenesis of icariin loaded on micro/nano hybrid structured hydroxyapatite granules as a local drug delivery system for femoral defect repair. J Mater Chem B 2015; 3:4871-4883. [PMID: 32262676 DOI: 10.1039/c5tb00621j] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Icariin has been identified to promote osteogenic differentiation of bone mesenchymal stem cells (BMSCs). However, whether icariin could enhance angiogenic factor expression of BMSCs, which may be vital for bone repair, needs to be explored. Moreover, how to construct a delivery system of icariin and its repair capability in bone defects are still unknown. In the present study, the effects of icariin on the osteogenic differentiation and angiogenic factor expression of BMSCs were firstly evaluated. Moreover, new micro/nano hybrid structured HAp (micro/nano HAp) granules were fabricated to construct the delivery system of icariin, and the osteogenesis and angiogenesis of icariin loaded on micro/nano HAp granules in a rat femoral plug defect model were evaluated by micro-CT measurements, sequential fluorescent labeling and the histological assay. The in vitro results showed that icariin significantly improved osteogenic differentiation of rat BMSCs demonstrated by the enhanced alkaline phosphatase (ALP) activity and gene expression of runt-related transcription factor-2 (Runx2), ALP, collagen type I (Col I), osteocalcin (OCN) and OCN protein secretion. Moreover, icariin induced the angiogenic genes expression of BMSCs, such as vascular endothelial growth factor (VEGF) and angiotensin 1 (ANG1). Furthermore, the activation of the AKT signaling pathway was observed in BMSCs upon treatment with icariin, and these enhancement effects could be blocked by LY294002, which suggested that the AKT signaling pathway was involved in the osteogenic differentiation and angiogenic factor expression of BMSCs induced by icariin. More importantly, micro/nano HAp granules with rod-like shapes were successfully fabricated and acted as delivery carriers for icariin. Consequently, icariin loaded on micro/nano HAp granules could promote new bone formation and blood vessel formation. These results demonstrated that icariin could enhance osteogenic differentiation and angiogenic factor expression of BMSCs via the AKT signaling pathway, moreover, the novel micro/nano HAp granules could act as carriers for icariin to repair bone defects via enhancing osteogenesis and angiogenesis.
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Affiliation(s)
- Yuqiong Wu
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China.
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22
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Wang Z, Ma F, Wang J, Zhou Z, Liu B, He X, Fu L, He W, Cooper PR. Extracellular Signal-regulated Kinase Mitogen-activated Protein Kinase and Phosphatidylinositol 3-Kinase/Akt Signaling Are Required for Lipopolysaccharide-mediated Mineralization in Murine Odontoblast-like Cells. J Endod 2015; 41:871-6. [PMID: 25720983 DOI: 10.1016/j.joen.2015.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 01/06/2015] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Odontoblasts play an important role in post-developmental control of mineralization in response to external stimuli in the tooth. The present study investigated whether lipopolysaccharide (LPS), a major bacterial cell wall component, influenced mineralization in a murine odontoblast-like cell (OLC) line and the related intracellular signaling pathways involved. METHODS Alizarin red S staining was used to assess mineralized nodule formation in OLCs in response to LPS. The effects of LPS on gene expression of odontoblastic markers were investigated by using quantitative real-time reverse-transcriptase polymerase chain reaction. The potential involvement of toll-like receptor 4 (TLR4), nuclear factor kappa B (NF-κB), mitogen-activated protein kinase (MAPK), or phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathways in the mineralized nodule formation, and mRNA expression of several odontoblastic markers of OLCs induced by LPS was assessed by using alizarin red S staining and quantitative real-time reverse-transcriptase polymerase chain reaction. Moreover, LPS stimulation resulted in phosphorylation of protein that was determined by Western blot analysis. RESULTS OLCs showed reduced mineralized nodule formation and several odontoblastic markers expression in response to LPS exposure. Furthermore, inhibition of TLR4, extracellular signal-regulated kinase (ERK), and PI3K/Akt signaling noticeably antagonized LPS-mediated mineralization in OLCs. However, p38 MAPK, c-Jun N-terminal kinase, and NF-κB signaling inhibitors did not affect LPS-mediated mineralization in OLCs. Notably, LPS treatment resulted in a time-dependent phosphorylation of ERK and PI3K/Akt in OLCs, which was abrogated by their specific inhibitors. CONCLUSIONS LPS decreased mineralization in OLCs via TLR4, ERK MAPK, and PI3K/Akt signaling pathways, but not p38, c-Jun N-terminal kinase, or NF-κB signaling.
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Affiliation(s)
- Zhihua Wang
- State Key Laboratory of Military Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Fengle Ma
- State Key Laboratory of Military Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Juan Wang
- State Key Laboratory of Military Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Zeyuan Zhou
- State Key Laboratory of Military Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Baogang Liu
- Department of Stomatology, Lishilu Outpatient Department, Chinese PLA Second Artillery Corps, Beijing, PR China
| | - Xinyao He
- State Key Laboratory of Military Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Lei Fu
- State Key Laboratory of Military Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China; Department of Stomatology, NingXia People's Hospital, NingXia, Yinchuan, PR China
| | - Wenxi He
- State Key Laboratory of Military Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China.
| | - Paul R Cooper
- Oral Biology, School of Dentistry, University of Birmingham, Birmingham, West Midlands, United Kingdom
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Suzuki E, Ochiai-Shino H, Aoki H, Onodera S, Saito A, Saito A, Azuma T. Akt activation is required for TGF-β1-induced osteoblast differentiation of MC3T3-E1 pre-osteoblasts. PLoS One 2014; 9:e112566. [PMID: 25470129 PMCID: PMC4254279 DOI: 10.1371/journal.pone.0112566] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 10/08/2014] [Indexed: 12/30/2022] Open
Abstract
Background We have previously reported that repeated treatment of human periodontal ligament cells and murine pre-osteoblast MC3T3-E1 cells with transforming growth factor-beta 1 (TGF-β1) inhibited their osteoblastic differentiation because of decreased insulin-like growth factor-1 (IGF-1) secretion. We also found that IGF-1/PI3K signaling plays an important role in osteoblast differentiation induced by TGF-β1 treatment; however, the downstream signaling controlling this remains unknown. The aim of this current study is to investigate whether Akt activation is required for osteoblast differentiation. Methodology/Principal Findings MC3T3-E1 cells were cultured in osteoblast differentiation medium (OBM) with or without 0.1 ng/mL TGF-β1. OBM containing TGF-β1 was changed every 12 h to provide repeated TGF-β1 administration. MC3T3-E1 cells were infected with retroviral vectors expressing constitutively active (CA) or dominant-negative (DN)-Akt. Alkaline phosphatase (ALP) activity and osteoblastic marker mRNA levels were substantially decreased by repeated TGF-β1 treatment compared with a single TGF-β1 treatment. However, expression of CA-Akt restored ALP activity following TGF-β1 treatment. Surprisingly, ALP activity increased following multiple TGF-β1 treatments as the number of administrations of TGF-β1 increased. Activation of Akt significantly enhanced expression of osteocalcin, but TGF-β1 treatment inhibited this. Mineralization of MC3T3-E1 cells was markedly enhanced by CA-Akt expression under all medium conditions. Exogenous IGF-1 restored the down-regulation of osteoblast-related gene expression by repeated TGF-β1 administration. However, in cells expressing DN-Akt, these levels remained inhibited regardless of IGF-1 treatment. These findings indicate that Akt activation is required for the early phase of osteoblast differentiation of MC3T3-E1 cells induced by TGF-β1. However, Akt activation is insufficient to reverse the inhibitory effects of TGF-β1 in the late stages of osteoblast differentiation. Conclusions TGF-β1 could be an inducer or an inhibitor of osteoblastic differentiation of MC3T3-E1 cells depending on the state of Akt phosphorylation. Our results indicate that Akt is the molecular switch for TGF-β1-induced osteoblastic differentiation of MC3T3-E1 cells.
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Affiliation(s)
- Eiichi Suzuki
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| | | | - Hideto Aoki
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - Shoko Onodera
- Department of Biochemistry, Tokyo Dental College, Tokyo, Japan
| | - Akiko Saito
- Department of Biochemistry, Tokyo Dental College, Tokyo, Japan
| | - Atsushi Saito
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| | - Toshifumi Azuma
- Department of Biochemistry, Tokyo Dental College, Tokyo, Japan
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
- * E-mail:
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Xia L, Lin K, Jiang X, Fang B, Xu Y, Liu J, Zeng D, Zhang M, Zhang X, Chang J, Zhang Z. Effect of nano-structured bioceramic surface on osteogenic differentiation of adipose derived stem cells. Biomaterials 2014; 35:8514-27. [DOI: 10.1016/j.biomaterials.2014.06.028] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Accepted: 06/13/2014] [Indexed: 12/12/2022]
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25
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Xu FF, Zhu H, Li XM, Yang F, Chen JD, Tang B, Sun HG, Chu YN, Zheng RX, Liu YL, Wang LS, Zhang Y. Intercellular adhesion molecule-1 inhibits osteogenic differentiation of mesenchymal stem cells and impairs bio-scaffold-mediated bone regeneration in vivo. Tissue Eng Part A 2014; 20:2768-82. [PMID: 24702024 DOI: 10.1089/ten.tea.2014.0007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cell (MSC) loaded bio-scaffold transplantation is a promising therapeutic approach for bone regeneration and repair. However, growing evidence shows that pro-inflammatory mediators from injured tissues suppress osteogenic differentiation and impair bone formation. To improve MSC-based bone regeneration, it is important to understand the mechanism of inflammation mediated osteogenic suppression. In the present study, we found that synovial fluid from rheumatoid arthritis patients and pro-inflammatory cytokines including interleukin-1α, interleukin-1β, and tumor necrosis factor α, stimulated intercellular adhesion molecule-1(ICAM-1) expression and impaired osteogenic differentiation of MSCs. Interestingly, overexpression of ICAM-1 in MSCs using a genetic approach also inhibited osteogenesis. In contrast, ICAM-1 knockdown significantly reversed the osteogenic suppression. In addition, after transplanting a traceable MSC-poly(lactic-co-glycolic acid) construct in rat calvarial defects, we found that ICAM-1 suppressed MSC osteogenic differentiation and matrix mineralization in vivo. Mechanistically, we found that ICAM-1 enhances MSC proliferation but causes stem cell marker loss. Furthermore, overexpression of ICAM-1 stably activated the MAPK and NF-κB pathways but suppressed the PI3K/AKT pathway in MSCs. More importantly, specific inhibition of the ERK/MAPK and NF-κB pathways or activation of the PI3K/AKT pathway partially rescued osteogenic differentiation, while inhibition of the p38/MAPK and PI3K/AKT pathway caused more serious osteogenic suppression. In summary, our findings reveal a novel function of ICAM-1 in osteogenesis and suggest a new molecular target to improve bone regeneration and repair in inflammatory microenvironments.
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Affiliation(s)
- Fen-Fen Xu
- 1 Department of Cell Biology, Institute of Basic Medical Sciences , Beijing, People's Republic of China
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Zhang YY, Yue J, Che H, Sun HY, Tse HF, Li GR. BKCaand hEag1 Channels Regulate Cell Proliferation and Differentiation in Human Bone Marrow-Derived Mesenchymal Stem Cells. J Cell Physiol 2013; 229:202-12. [DOI: 10.1002/jcp.24435] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 07/15/2013] [Indexed: 12/29/2022]
Affiliation(s)
- Ying-Ying Zhang
- Department of Medicine; Li Ka Shing Faculty of Medicine; University of Hong Kong; Hong Kong China
| | - Jianbo Yue
- Department of Physiology; Li Ka Shing Faculty of Medicine; University of Hong Kong; Hong Kong China
| | - Hui Che
- Department of Medicine; Li Ka Shing Faculty of Medicine; University of Hong Kong; Hong Kong China
| | - Hai-Ying Sun
- Department of Medicine; Li Ka Shing Faculty of Medicine; University of Hong Kong; Hong Kong China
- Department of Physiology; Li Ka Shing Faculty of Medicine; University of Hong Kong; Hong Kong China
| | - Hung-Fat Tse
- Department of Medicine; Li Ka Shing Faculty of Medicine; University of Hong Kong; Hong Kong China
| | - Gui-Rong Li
- Department of Medicine; Li Ka Shing Faculty of Medicine; University of Hong Kong; Hong Kong China
- Department of Physiology; Li Ka Shing Faculty of Medicine; University of Hong Kong; Hong Kong China
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