1
|
Zhang HR, Wang YH, Xiao ZP, Yang G, Xu YR, Huang ZT, Wang WZ, He F. E3 ubiquitin ligases: key regulators of osteogenesis and potential therapeutic targets for bone disorders. Front Cell Dev Biol 2024; 12:1447093. [PMID: 39211390 PMCID: PMC11358089 DOI: 10.3389/fcell.2024.1447093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Accepted: 08/05/2024] [Indexed: 09/04/2024] Open
Abstract
Ubiquitination is a crucial post-translational modification of proteins that mediates the degradation or functional regulation of specific proteins. This process participates in various biological processes such as cell growth, development, and signal transduction. E3 ubiquitin ligases play both positive and negative regulatory roles in osteogenesis and differentiation by ubiquitination-mediated degradation or stabilization of transcription factors, signaling molecules, and cytoskeletal proteins. These activities affect the proliferation, differentiation, survival, and bone formation of osteoblasts (OBs). In recent years, advances in genomics, transcriptomics, and proteomics have led to a deeper understanding of the classification, function, and mechanisms of action of E3 ubiquitin ligases. This understanding provides new insights and approaches for revealing the molecular regulatory mechanisms of bone formation and identifying therapeutic targets for bone metabolic diseases. This review discusses the research progress and significance of the positive and negative regulatory roles and mechanisms of E3 ubiquitin ligases in the process of osteogenic differentiation. Additionally, the review highlights the role of E3 ubiquitin ligases in bone-related diseases. A thorough understanding of the role and mechanisms of E3 ubiquitin ligases in osteogenic differentiation could provide promising therapeutic targets for bone tissue engineering based on stem cells.
Collapse
Affiliation(s)
- Heng-Rui Zhang
- School of Medicine, Kunming University of Science and Technology, Kunming, Yunnan, China
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
| | - Yang-Hao Wang
- Department of Pathology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Zhen-Ping Xiao
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
- Department of Pain and Rehabilitation, The Second Affiliated Hospital of University of South China, Hengyang, Hunan, China
| | - Guang Yang
- Department of Trauma Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yun-Rong Xu
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
| | - Zai-Tian Huang
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
| | - Wei-Zhou Wang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Fei He
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
| |
Collapse
|
2
|
Yu J, Li D, Xie M, Xie J, Wang Z, Gu X, Ma Z, Sun Y. Complex Topology of Ubiquitin Chains Mediates Lysosomal Degradation of MrgC Proteins. Cell Biochem Biophys 2024; 82:641-645. [PMID: 38291169 DOI: 10.1007/s12013-023-01204-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 11/28/2023] [Indexed: 02/01/2024]
Abstract
BACKGROUND Activation of Mas-related G protein-coupled receptor C (MrgC) receptors relieves pain, but also leads to ubiquitination of MrgC receptors. Ubiquitination mediates MrgC receptor endocytosis and degradation. However, MrgC degradation pathways and ubiquitin-linked chain types are not known. METHODS N2a cells were treated with cycloheximide (CHX, protein synthesis inhibitor), Mg132 (proteasome inhibitor), 3-Methyladenine (3MA, autophagy lysosome inhibitor) and Chloroquine (CQ, autophagy lysosome inhibitor) to observe the half-life and degradation pathway of MrgC. The location of internalized MrgC receptors and lysosomes (Lyso-Tracker) was observed by immunofluorescence staining. N2a cells were transfected with Myc-MrgC and a series of HA-tagged ubiquitin mutants to study the ubiquitin-linked chain type of MrgC. RESULTS The amount of MrgC protein decreased with time after CHX treatment of N2a cells. Autophagy lysosome inhibitors can inhibit the degradation of MrgC. The amount of MrgC protein decreased with time after CHX treatment of N2a cells. 3-MA and CQ inhibited the degradation of MrgC protein, whereas Mg-132 did not inhibit it. Partially internalized MrgC receptors were co-labeled with lysosomes. MrgC proteins have multiple topologies of ubiquitin-modified chains. CONCLUSION As a member of the G protein-coupled receptor family, MrgC receptors can be degraded over time. The complex topology of the ubiquitin-linked chain mediates the lysosomal degradation of MrgC proteins.
Collapse
Affiliation(s)
- Jiacheng Yu
- Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210023, China
| | - Dan Li
- Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Mingming Xie
- Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jun Xie
- Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, 210023, China
| | - Zhen Wang
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210023, China
| | - Xiaoping Gu
- Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210023, China
| | - Zhengliang Ma
- Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210023, China
| | - Yu'e Sun
- Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210023, China.
- Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210023, China.
- Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, 210023, China.
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210023, China.
| |
Collapse
|
3
|
Dai J, Dong X, Chen Y, Xue W, Wang Q, Shang F, Zhao Y, Li S, Gao Y, Wang Y. SPOP regulates the expression profiles and alternative splicing events in human hepatocytes. Open Life Sci 2023; 18:20220755. [PMID: 37941785 PMCID: PMC10628592 DOI: 10.1515/biol-2022-0755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 09/08/2023] [Accepted: 09/19/2023] [Indexed: 11/10/2023] Open
Abstract
Speckle type BTB/POZ protein (SPOP) may have cancer promoting or inhibiting effects. At present, the role of SPOP in hepatocellular carcinoma (HCC) has rarely been studied. In this study, to investigate the effects of SPOP in HCC and elucidate the underlying molecular mechanisms of its relationship with genes, differentially expressed genes (DEGs) were classified through RNA sequencing. The gene ontology analysis and Kyoto Encyclopedia of Genes and Genomes functional pathway analysis were used to further predict the function of DEGs after the overexpression of SPOP. The biological function of SPOP-regulated alternative splicing events in cells is comprehensively assessed. The Cancer Genome Atlas database and Gene Expression Omnibus dataset were performed to evaluate the correlation between SPOP and HCC progression. Due to SPOP overexpression, 56 DEGs in the HCC related pathway were further identified. The results showed that SPOP overexpression facilitated the cell proliferation and changed the gene expression profiles of human normal hepatocytes. SPOP-regulated alternative splicing events were involved in pathways associated with cellular processes, metabolism, environmental information procession, organismal systems, and so on. In conclusion, SPOP may potentially exhibit tumor-promoting effects, necessitating further investigations to unveil its molecular mechanisms comprehensively.
Collapse
Affiliation(s)
- Jing Dai
- School of Life Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, China
| | - Xiang Dong
- School of Life Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, China
- Research Center of Clinical Laboratory Science, School of Laboratory Medicine, Bengbu Medical College, Bengbu, China
| | - Yuxin Chen
- School of Life Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, China
| | - Wanying Xue
- School of Life Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, China
| | - Qingqing Wang
- School of Life Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, China
| | - Feifei Shang
- School of Life Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, China
| | - Yunxia Zhao
- Department of Basic Medical College, Bengbu Medical College, Bengbu, Anhui, China
| | - Shujing Li
- School of Life Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, China
| | - Yu Gao
- School of Life Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, China
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, Anhui, China
| | - Yuanyuan Wang
- School of Life Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, China
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, Anhui, China
| |
Collapse
|
4
|
Amaral SS, Lima BSDS, Avelino SOM, Spirandeli BR, Campos TMB, Thim GP, Trichês EDS, Prado RFD, Vasconcellos LMRD. β-TCP/S53P4 Scaffolds Obtained by Gel Casting: Synthesis, Properties, and Biomedical Applications. Bioengineering (Basel) 2023; 10:bioengineering10050597. [PMID: 37237667 DOI: 10.3390/bioengineering10050597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
The objective of this study was to investigate the osteogenic and antimicrobial effect of bioactive glass S53P4 incorporated into β-tricalcium phosphate (β-TCP) scaffolds in vitro and the bone neoformation in vivo. β-TCP and β-TCP/S53P4 scaffolds were prepared by the gel casting method. Samples were morphologically and physically characterized through X-ray diffraction (XRD) and scanning electron microscope (SEM). In vitro tests were performed using MG63 cells. American Type Culture Collection reference strains were used to determine the scaffold's antimicrobial potential. Defects were created in the tibia of New Zealand rabbits and filled with experimental scaffolds. The incorporation of S53P4 bioglass promotes significant changes in the crystalline phases formed and in the morphology of the surface of the scaffolds. The β-TCP/S53P4 scaffolds did not demonstrate an in vitro cytotoxic effect, presented similar alkaline phosphatase activity, and induced a significantly higher protein amount when compared to β-TCP. The expression of Itg β1 in the β-TCP scaffold was higher than in the β-TCP/S53P4, and there was higher expression of Col-1 in the β-TCP/S53P4 group. Higher bone formation and antimicrobial activity were observed in the β-TCP/S53P4 group. The results confirm the osteogenic capacity of β-TCP ceramics and suggest that, after bioactive glass S53P4 incorporation, it can prevent microbial infections, demonstrating to be an excellent biomaterial for application in bone tissue engineering.
Collapse
Affiliation(s)
- Suelen Simões Amaral
- Institute of Science and Technology, São Paulo State University (UNESP), 777 Eng. Francisco José Longo Avenue, São José dos Campos 12245-000, SP, Brazil
| | - Beatriz Samara de Sousa Lima
- Institute of Science and Technology, São Paulo State University (UNESP), 777 Eng. Francisco José Longo Avenue, São José dos Campos 12245-000, SP, Brazil
| | - Sarah Oliveira Marco Avelino
- Institute of Science and Technology, São Paulo State University (UNESP), 777 Eng. Francisco José Longo Avenue, São José dos Campos 12245-000, SP, Brazil
| | - Bruno Roberto Spirandeli
- Bioceramics Laboratory, Federal University of São Paulo (UNIFESP), 330 Talim St, São José dos Campos 12231-280, SP, Brazil
| | - Tiago Moreira Bastos Campos
- Division of Fundamental Sciences, Technological Institute of Aeronautics (ITA), 50 Mal. Eduardo Gomes Plaza, São José dos Campos 12228-900, SP, Brazil
| | - Gilmar Patrocínio Thim
- Division of Fundamental Sciences, Technological Institute of Aeronautics (ITA), 50 Mal. Eduardo Gomes Plaza, São José dos Campos 12228-900, SP, Brazil
| | - Eliandra de Sousa Trichês
- Bioceramics Laboratory, Federal University of São Paulo (UNIFESP), 330 Talim St, São José dos Campos 12231-280, SP, Brazil
| | - Renata Falchete do Prado
- Institute of Science and Technology, São Paulo State University (UNESP), 777 Eng. Francisco José Longo Avenue, São José dos Campos 12245-000, SP, Brazil
| | - Luana Marotta Reis de Vasconcellos
- Institute of Science and Technology, São Paulo State University (UNESP), 777 Eng. Francisco José Longo Avenue, São José dos Campos 12245-000, SP, Brazil
| |
Collapse
|
5
|
Bott KN, Feldman E, de Souza RJ, Comelli EM, Klentrou P, Peters SJ, Ward WE. Lipopolysaccharide-Induced Bone Loss in Rodent Models: A Systematic Review and Meta-Analysis. J Bone Miner Res 2023; 38:198-213. [PMID: 36401814 PMCID: PMC10107812 DOI: 10.1002/jbmr.4740] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/27/2022] [Accepted: 11/03/2022] [Indexed: 11/21/2022]
Abstract
Osteoporosis has traditionally been characterized by underlying endocrine mechanisms, though evidence indicates a role of inflammation in its pathophysiology. Lipopolysaccharide (LPS), a component of gram-negative bacteria that reside in the intestines, can be released into circulation and stimulate the immune system, upregulating bone resorption. Exogenous LPS is used in rodent models to study the effect of systemic inflammation on bone, and to date a variety of different doses, routes, and durations of LPS administration have been used. The study objective was to determine whether systemic administration of LPS induced inflammatory bone loss in rodent models. A systematic search of Medline and four other databases resulted in a total of 110 studies that met the inclusion criteria. Pooled standardized mean differences (SMDs) and corresponding 95% confidence intervals (CI) with a random-effects meta-analyses were used for bone volume fraction (BV/TV) and volumetric bone mineral density (vBMD). Heterogeneity was quantified using the I2 statistic. Shorter-term (<2 weeks) and longer-term (>2 weeks) LPS interventions were analyzed separately because of intractable study design differences. BV/TV was significantly reduced in both shorter-term (SMD = -3.79%, 95% CI [-4.20, -3.38], I2 62%; p < 0.01) and longer-term (SMD = -1.50%, 95% CI [-2.00, -1.00], I2 78%; p < 0.01) studies. vBMD was also reduced in both shorter-term (SMD = -3.11%, 95% CI [-3.78, -2.44]; I2 72%; p < 0.01) and longer-term (SMD = -3.49%, 95% CI [-4.94, -2.04], I2 82%; p < 0.01) studies. In both groups, regardless of duration, LPS negatively impacted trabecular bone structure but not cortical bone structure, and an upregulation in bone resorption demonstrated by bone cell staining and serum biomarkers was reported. This suggests systemically delivered exogenous LPS in rodents is a viable model for studying inflammatory bone loss, particularly in trabecular bone. © 2022 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
Collapse
Affiliation(s)
- Kirsten N Bott
- Department of Kinesiology, Brock University, St. Catharines, ON, Canada.,Centre for Bone and Muscle Health, Brock University, St. Catharines, ON, Canada
| | - Evelyn Feldman
- Lakehead University Library, Lakehead University, Thunder Bay, ON, Canada
| | - Russell J de Souza
- Department of Health Research Methods, Evidence, and Impact, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada.,Population Health Research Institute, Hamilton Health Sciences Corporation, Hamilton, ON, Canada
| | - Elena M Comelli
- Department of Kinesiology, Brock University, St. Catharines, ON, Canada.,Department of Nutritional Sciences, University of Toronto, Toronto, ON, Canada.,Joannah and Brian Lawson Centre for Child Nutrition, University of Toronto, Toronto, ON, Canada
| | - Panagiota Klentrou
- Department of Kinesiology, Brock University, St. Catharines, ON, Canada.,Centre for Bone and Muscle Health, Brock University, St. Catharines, ON, Canada
| | - Sandra J Peters
- Department of Kinesiology, Brock University, St. Catharines, ON, Canada.,Centre for Bone and Muscle Health, Brock University, St. Catharines, ON, Canada
| | - Wendy E Ward
- Department of Kinesiology, Brock University, St. Catharines, ON, Canada.,Centre for Bone and Muscle Health, Brock University, St. Catharines, ON, Canada.,Department of Nutritional Sciences, University of Toronto, Toronto, ON, Canada.,Department of Health Sciences, Brock University, St. Catharines, ON, Canada
| |
Collapse
|
6
|
Zhao J, Lei H, Wang T, Xiong X. Liver-bone crosstalk in non-alcoholic fatty liver disease: Clinical implications and underlying pathophysiology. Front Endocrinol (Lausanne) 2023; 14:1161402. [PMID: 36967758 PMCID: PMC10036806 DOI: 10.3389/fendo.2023.1161402] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 02/24/2023] [Indexed: 03/12/2023] Open
Abstract
Osteoporosis is a common complication of many types of chronic liver diseases (CLDs), such as cholestatic liver disease, viral hepatitis, and alcoholic liver disease. Non-alcoholic fatty liver disease (NAFLD) is a highly prevalent metabolic liver disease, affecting almost one third of adults around the world, and is emerging as the dominant cause of CLDs. Liver serves as a hub for nutrient and energy metabolism in the body, and its crosstalk with other tissues, such as adipose tissue, heart, and brain, has been well recognized. However, much less is known about the crosstalk that occurs between the liver and bone. Moreover, the mechanisms by which CLDs increase the risk for osteoporosis remain unclear. This review summarizes the latest research on the liver-bone axis and discusses the relationship between NAFLD and osteoporosis. We cover key signaling molecules secreted by liver, such as insulin-like growth factor-1 (IGF-1), fibroblast growth factor 21 (FGF21), insulin-like growth factor binding protein 1 (IGFBP1), fetuin-A, tumor necrosis factor-alpha (TNF-α), and osteopontin (OPN), and their relevance to the homeostasis of bone metabolism. Finally, we consider the disordered liver metabolism that occurs in patients with NAFLD and how this disrupts signaling to the bone, thereby perturbing the balance between osteoclasts and osteoblasts and leading to osteoporosis or hepatic osteodystrophy (HOD).
Collapse
|
7
|
The Non-Erythropoietic EPO Analogue Cibinetide Inhibits Osteoclastogenesis In Vitro and Increases Bone Mineral Density in Mice. Int J Mol Sci 2021; 23:ijms23010055. [PMID: 35008482 PMCID: PMC8744753 DOI: 10.3390/ijms23010055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/17/2021] [Accepted: 12/18/2021] [Indexed: 01/21/2023] Open
Abstract
The two erythropoietin (EPO) receptor forms mediate different cellular responses to erythropoietin. While hematopoiesis is mediated via the homodimeric EPO receptor (EPOR), tissue protection is conferred via a heteromer composed of EPOR and CD131. In the skeletal system, EPO stimulates osteoclast precursors and induces bone loss. However, the underlying molecular mechanisms are still elusive. Here, we evaluated the role of the heteromeric complex in bone metabolism in vivo and in vitro by using Cibinetide (CIB), a non-erythropoietic EPO analogue that exclusively binds the heteromeric receptor. CIB is administered either alone or in combination with EPO. One month of CIB treatment significantly increased the cortical (~5.8%) and trabecular (~5.2%) bone mineral density in C57BL/6J WT female mice. Similarly, administration of CIB for five consecutive days to female mice that concurrently received EPO on days one and four, reduced the number of osteoclast progenitors, defined by flow cytometry as Lin−CD11b−Ly6Chi CD115+, by 42.8% compared to treatment with EPO alone. In addition, CIB alone or in combination with EPO inhibited osteoclastogenesis in vitro. Our findings introduce CIB either as a stand-alone treatment, or in combination with EPO, as an appealing candidate for the treatment of the bone loss that accompanies EPO treatment.
Collapse
|
8
|
Augmenting MNK1/2 activation by c-FMS proteolysis promotes osteoclastogenesis and arthritic bone erosion. Bone Res 2021; 9:45. [PMID: 34671034 PMCID: PMC8528869 DOI: 10.1038/s41413-021-00162-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 04/16/2021] [Accepted: 05/25/2021] [Indexed: 01/07/2023] Open
Abstract
Osteoclasts are bone-resorbing cells that play an essential role in homeostatic bone remodeling and pathological bone erosion. Macrophage colony stimulating factor (M-CSF) is abundant in rheumatoid arthritis (RA). However, the role of M-CSF in arthritic bone erosion is not completely understood. Here, we show that M-CSF can promote osteoclastogenesis by triggering the proteolysis of c-FMS, a receptor for M-CSF, leading to the generation of FMS intracellular domain (FICD) fragments. Increased levels of FICD fragments positively regulated osteoclastogenesis but had no effect on inflammatory responses. Moreover, myeloid cell-specific FICD expression in mice resulted in significantly increased osteoclast-mediated bone resorption in an inflammatory arthritis model. The FICD formed a complex with DAP5, and the FICD/DAP5 axis promoted osteoclast differentiation by activating the MNK1/2/EIF4E pathway and enhancing NFATc1 protein expression. Moreover, targeting the MNK1/2 pathway diminished arthritic bone erosion. These results identified a novel role of c-FMS proteolysis in osteoclastogenesis and the pathogenesis of arthritic bone erosion.
Collapse
|
9
|
miR-143-3p Inhibits the Differentiation of Osteoclast Induced by Synovial Fibroblast and Monocyte Coculture in Adjuvant-Induced Arthritic Rats. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5565973. [PMID: 34485516 PMCID: PMC8416385 DOI: 10.1155/2021/5565973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 08/03/2021] [Accepted: 08/14/2021] [Indexed: 12/03/2022]
Abstract
Osteoclast, which mediates overactive bone resorption, is one of the key factors for bone destruction in rheumatoid arthritis (RA). Existing studies have shown that abnormal miR-143-3p expression was observed in both RA patients and arthritis animals, which can participate in osteoclast differentiation, and mitogen-activated protein kinase (MAPK) signaling pathway was closely related to osteoclast differentiation. The primary objective of the current study was to determine the role of miR-143-3p in the progression of osteoclast differentiation and its relationship with MAPK signaling pathways. The results showed that miR-143-3p inhibited osteoclast differentiation and decreased the levels of M-CSF and RANKL during osteoclast differentiation. miR-143-3p inhibited the expression of MAPK signaling proteins, which is ERK1/2 in the early stage and JNK in the later stage of osteoclast differentiation. It was also observed that MAPK inhibitors upregulated miR-143-3p expression in osteoclast differentiation. Taken together, our results suggested that miR-143-3p could inhibit the differentiation of osteoclast, which was related to inhibiting MAPK signaling pathways. This may provide a novel strategy for curing RA.
Collapse
|
10
|
Liu YQ, Liu Y, Zhang Q, Xiao T, Deng HW. Identification of Novel Pleiotropic SNPs Associated with Osteoporosis and Rheumatoid Arthritis. Calcif Tissue Int 2021; 109:17-31. [PMID: 33740106 PMCID: PMC8238865 DOI: 10.1007/s00223-021-00817-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/28/2021] [Indexed: 01/21/2023]
Abstract
Genome-wide association studies (GWASs) have identified hundreds of genetic loci for osteoporosis (OP) and rheumatoid arthritis (RA), individually, however, a large proportion of the total trait heritability remains unexplained. Previous studies demonstrated that these two diseases may share some common genetic determination and risk factors, but they were generally focused on individual trait and failed to identify the common variants that play key functional roles in the etiology of these two diseases. Here, we performed a conditional false discovery rate (cFDR) analysis to identify novel pleiotropic variants shared between them by integrating two independent GWASs with summary statistics for total body bone mineral density (TB-BMD, a major risk factor for osteoporosis) (n = 66,628) and RA (n = 58,284). A fine-mapping approach was also applied to identify the most probable causal variants with biological effects on both TB-BMD and RA. As a result, we found 47 independent pleiotropic SNPs shared between TB-BMD and RA, and 40 of them were validated in heel ultrasound estimated BMD (eBMD), femoral neck BMD (FN-BMD) or lumbar spine (LS-BMD). We detected one SNP (rs13299616) was novel and not identified by previous BMD or RA-related studies. Combined with fine-mapping and GWAS-eQTL colocalization analyses, our results suggested that locus 1p13.2 (including PTPN22, MAGI3, PHTF1, and RSBN1) was an important region to regulate TB-BMD and RA simultaneously. These findings provide new insights into the shared biological mechanisms and functional genetic determinants between OP and RA, and novel potential targets for treatment development.
Collapse
Affiliation(s)
- Ying-Qi Liu
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Yong Liu
- College of Life Sciences and Bioengineering, Beijing Jiaotong University, Beijing, 100044, China
| | - Qiang Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Tao Xiao
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Hong-Wen Deng
- Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, School of Medicine, Tulane University, 1440 Canal St., Suite 2001, New Orleans, 70112, USA.
| |
Collapse
|
11
|
Liu X, Du Z, Yi X, Sheng T, Yuan J, Jia J. Circular RNA circANAPC2 mediates the impairment of endochondral ossification by miR-874-3p/SMAD3 signalling pathway in idiopathic short stature. J Cell Mol Med 2021; 25:3408-3426. [PMID: 33713570 PMCID: PMC8034469 DOI: 10.1111/jcmm.16419] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 02/06/2021] [Accepted: 02/10/2021] [Indexed: 02/06/2023] Open
Abstract
Idiopathic short stature (ISS) is a main reason for low height among children. Its exact aetiology remains unclear. Recent findings have suggested that the aberrant expression of circRNAs in peripheral blood samples is associated with many diseases. However, to date, the role of aberrant circRNA expression in mediating ISS pathogenesis remains largely unknown. The up-regulated circANAPC2 was identified by circRNA microarray analysis and RT-qPCR. Overexpression of circANAPC2 inhibited the proliferation of human chondrocytes, and cell cycle was arrested in G1 phase. The expressions of collagen type X, RUNX2, OCN and OPN were significantly down-regulated following circANAPC2 overexpression. Moreover, Von Kossa staining intensity and alkaline phosphatase activity were also decreased. Luciferase reporter assay results showed that circANAPC2 could be targeted by miR-874-3p. CircANAPC2 overexpression in human chondrocytes inhibits the expression of miR-874-3p. The co-localization of circANAPC2 and miR-874-3p was confirmed in both human chondrocytes and murine femoral growth plates via in situ hybridization. The rescue experiment demonstrated that the high expression of miR-874-3p overexpression antagonized the suppression of endochondral ossification, hypertrophy and chondrocyte growth caused by circANAPC2 overexpression. A high-throughput screening of mRNA expression and RT-qPCR verified SMAD3 demonstrated the highest different expressions following overcircANAPC2. Luciferase reporter assay results indicated that miR-874-3p could be targeted by Smad3, thus down-regulating the expression of Smad3. Subsequent rescue experiments of SMAD3 further confirmed that circANAPC2 suppresses endochondral ossification, hypertrophy and chondrocyte growth through miR-874-3p/Smad3 axis. The present study provides evidence that circANAPC2 can serve as a promising target for ISS treatment.
Collapse
Affiliation(s)
- Xijuan Liu
- Department of PediatricsThe Second Affiliated Hospital of Nanchang UniversityNanchang CityChina
| | - Zhi Du
- Department of OrthopaedicsThe Second Affiliated Hospital of Nanchang UniversityNanchang CityChina
| | - Xuan Yi
- Department of OrthopaedicsThe Second Affiliated Hospital of Nanchang UniversityNanchang CityChina
| | - Tianle Sheng
- Department of Molecular laboratoryThe Second Affiliated Hospital of Nanchang UniversityNanchang CityChina
| | - Jinghong Yuan
- Department of OrthopaedicsThe Second Affiliated Hospital of Nanchang UniversityNanchang CityChina
| | - Jingyu Jia
- Department of OrthopaedicsThe Second Affiliated Hospital of Nanchang UniversityNanchang CityChina
| |
Collapse
|
12
|
Lu X, Zhang Y, Zheng Y, Chen B. The miRNA-15b/USP7/KDM6B axis engages in the initiation of osteoporosis by modulating osteoblast differentiation and autophagy. J Cell Mol Med 2021; 25:2069-2081. [PMID: 33434305 PMCID: PMC7882933 DOI: 10.1111/jcmm.16139] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 10/27/2020] [Accepted: 11/17/2020] [Indexed: 02/05/2023] Open
Abstract
Osteoporosis is a metabolic disease that results from oxidative stress or inflammation in renal disorders. microRNAs (miRNAs) are recently implicated to participate in osteoporosis, but the mechanism remains largely unexplored. Herein, we aimed to explore the potential role of miR-15b in osteoblast differentiation and autophagy in osteoporosis. We established osteoporosis models through ovariectomy and determined that miR-15b was highly expressed whereas USP7 and KDM6B were poorly expressed in tissue of osteoporosis mice. Treatment of silenced miR-15b resulted in the elevation of decreased bone mineral density (BMD), the maximum elastic stress and the maximum load of osteoporosis mice. In osteoblasts, miR-15 overexpression decreased proliferation but suppressed the cell differentiation and autophagy, accompanied with decreased expression of USP7. Mechanistically, miR-15 bound and inhibited USP7 expression, while overexpression of USP7 promoted autophagy of osteoblasts. USP7, importantly, strengthened the stability of KDM6B and promoted KDM6B expression. MG132 protease inhibitor increased KDM6B and USP7 expression in osteoblasts. Silencing of KDM6B reversed the promoting effect on autophagy and proliferation induced by overexpression of USP7. Taken altogether, miR-15b inhibits osteoblast differentiation and autophagy to aggravate osteoporosis by targeting USP7 to regulate KDM6B expression.
Collapse
Affiliation(s)
- Xiaohui Lu
- Department of OrthopedicsThe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Yuantao Zhang
- Department of OrthopedicsThe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Yin Zheng
- Department of Teaching and ResearchThe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Bin Chen
- Department of OrthopedicsThe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
| |
Collapse
|
13
|
The muscle to bone axis (and viceversa): An encrypted language affecting tissues and organs and yet to be codified? Pharmacol Res 2021; 165:105427. [PMID: 33453372 DOI: 10.1016/j.phrs.2021.105427] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/20/2020] [Accepted: 01/10/2021] [Indexed: 12/15/2022]
Abstract
Skeletal muscles and bone tissue form the musculoskeletal apparatus, a complex system essential for the voluntary movement. The loss of muscle mass and muscle strength is often associated with a loss of bone mass, in a "hazardous duet" which implies the co-existence of sarcopenia-osteoporosis and exposes patients to a deterioration in quality of life and increased mortality. From the mechanostat theory to the recent definition of the osteosarcopenia syndrome, many aspects of muscle-bone interaction have been investigated in recent decades. The mechanical interaction is now accepted, considering the close anatomical relationship between the two tissues, however, much remains to be discovered regarding the biochemical muscle-bone interaction. Skeletal muscle has been defined as an endocrine organ capable of exerting an action on other tissues. Myokines, bioactive polypeptides released by the muscle, could represent the encrypted message in the communication between muscle and bone. These two tissues have a reciprocal influence on their metabolisms and respond in a similar way to the multiple external factors. The aim of this review is to stimulate the understanding of the encrypted language between muscle and bone, highlighting the role of catabolic pathways and oxidative stress in the musculoskeletal apparatus to elucidate the shared mechanisms and the similarity of response to the same stimuli by different tissues. Our understanding of muscle-bone interactions it could be useful to identify and develop new strategies to treat musculoskeletal diseases, together with pharmacological, nutritional and exercise-based approaches, which are already in use for the treatment of these pathologies.
Collapse
|
14
|
The M-CSF receptor in osteoclasts and beyond. Exp Mol Med 2020; 52:1239-1254. [PMID: 32801364 PMCID: PMC8080670 DOI: 10.1038/s12276-020-0484-z] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 12/18/2022] Open
Abstract
Colony-stimulating factor 1 receptor (CSF1R, also known as c-FMS) is a receptor tyrosine kinase. Macrophage colony-stimulating factor (M-CSF) and IL-34 are ligands of CSF1R. CSF1R-mediated signaling is crucial for the survival, function, proliferation, and differentiation of myeloid lineage cells, including osteoclasts, monocytes/macrophages, microglia, Langerhans cells in the skin, and Paneth cells in the intestine. CSF1R also plays an important role in oocytes and trophoblastic cells in the female reproductive tract and in the maintenance and maturation of neural progenitor cells. Given that CSF1R is expressed in a wide range of myeloid cells, altered CSF1R signaling is implicated in inflammatory, neoplastic, and neurodegenerative diseases. Inhibiting CSF1R signaling through an inhibitory anti-CSF1R antibody or small molecule inhibitors that target the kinase activity of CSF1R has thus been a promising therapeutic strategy for those diseases. In this review, we cover the recent progress in our understanding of the various roles of CSF1R in osteoclasts and other myeloid cells, highlighting the therapeutic applications of CSF1R inhibitors in disease conditions. Drugs directed at a key signaling receptor involved in breaking down bone tissue could help treat diseases marked by pathological bone loss and destruction. In a review article, Kyung-Hyun Park-Min and colleagues from the Hospital for Special Surgery in New York, USA, discuss the essential roles played by the colony-stimulating factor 1 receptor (CSF1R) protein in the survival, function, proliferation and differentiation of myeloid lineage stem cells in the bone marrow, including bone-resorbing osteoclasts. They explore the links between the CSF1R-mediated signaling pathway and diseases such as cancer and neurodegeneration. The authors largely focus on bone conditions, highlighting mouse studies in which CSF1R-blocking drugs were shown to ameliorate bone loss and inflammatory symptoms in models of arthritis, osteoporosis and metastatic cancer. Clinical trials are ongoing to test therapeutic applications.
Collapse
|
15
|
Feng Q, Wang D, Feng J, Guo P, Geng C. Denosumab inhibits MCF-7 cell line-induced spontaneous osteoclastogenesis via the RANKL/MALAT1/miR-124 axis. Transl Cancer Res 2020; 9:2482-2491. [PMID: 35117607 PMCID: PMC8798509 DOI: 10.21037/tcr.2020.03.17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 12/12/2019] [Indexed: 12/12/2022]
Abstract
Background Denosumab is an inhibitor of receptor activator of NF-κB ligand (RANKL), which inhibits bone metastasis (BM) in breast cancer (BC), but does not completely control cancer cell BM in some BC patients. This study was designed to study whether denosumab inhibits human BC cells (MCF-7) cell line-induced spontaneous osteoclastogenesis via RANKL/metastasis-associated lung adenocarcinoma transcript 1 (MALAT1)/miR-124 axis. Methods We established a co-culture system of MCF-7-induced spontaneous osteoclastogenesis in RAW 264.7 cells, and denosumab is added into the co-culture system to inhibit RAW 264.7 cell differentiation into osteoclasts. Real-time PCR (RT-PCR), immunofluorescence and western blotting analysis were used to detect gene expression, while tartrate-resistant acid phosphatase (TRAP) staining was used to assess osteoclast formation. Results Denosumab inhibits MCF-7 cell line-induced spontaneous osteoclastogenesis, and the inhibition of denosumab was found to be more pronounced after MALAT1 downregulation and miR-124 overexpression. However, MALAT1 knockdown or miR-124 overexpression did not alter RANKL protein expression. Moreover, the dual luciferase gene reporter system showed that miR-124 targeted the inhibition of MALAT1, while si-MALAT1 upregulated miR-124 expression. miR-124-mimics were able to decrease the expression of Rab27a, IL-11, activated T-cell nuclear factor 1 (NFATc1) and TARP protein. Conclusions Denosumab inhibits MALAT1 expression by inhibiting RANKL, thereby upregulating miR-124 expression, which ultimately inhibits MCF-7 cell line-induced pseudo osteoclastogenesis.
Collapse
Affiliation(s)
- Qi Feng
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Donglai Wang
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Jiangang Feng
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Peng Guo
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Cuizhi Geng
- Breast Disease Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| |
Collapse
|
16
|
Proteasome inhibition suppress microgravity elevated RANK signaling during osteoclast differentiation. Cytokine 2020; 125:154821. [DOI: 10.1016/j.cyto.2019.154821] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 08/05/2019] [Accepted: 08/21/2019] [Indexed: 01/03/2023]
|
17
|
Kim MY, Lee K, Shin HI, Jeong D. Specific targeting of PKCδ suppresses osteoclast differentiation by accelerating proteolysis of membrane-bound macrophage colony-stimulating factor receptor. Sci Rep 2019; 9:7044. [PMID: 31065073 PMCID: PMC6504882 DOI: 10.1038/s41598-019-43501-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/25/2019] [Indexed: 01/12/2023] Open
Abstract
c-Fms is the macrophage colony-stimulating factor (M-CSF) receptor, and intracellular signalling via the M-CSF/c-Fms axis mediates both innate immunity and bone remodelling. M-CSF-induced transient proteolytic degradation of c-Fms modulates various biological functions, and protein kinase C (PKC) signalling is activated during this proteolytic process via an unknown mechanism. Notably, the role of specific PKC isoforms involved in c-Fms degradation during osteoclast differentiation is not known. Here, we observed that inactivation of PKCδ by the biochemical inhibitor rottlerin, a cell permeable peptide inhibitor, and short hairpin (sh) RNA suppresses osteoclast differentiation triggered by treatment with M-CSF and receptor activator of NF-κB ligand. Interestingly, inhibition of PKCδ by either inhibitor or gene silencing of PKCδ accelerated M-CSF-induced proteolytic degradation of membrane-bound c-Fms via both the lysosomal pathway and regulated intramembrane proteolysis (RIPping), but did not affect c-fms expression at the mRNA level. Degradation of c-Fms induced by PKCδ inactivation subsequently inhibited M-CSF-induced osteoclastogenic signals, such as extracellular signal-regulated kinase (ERK), c-JUN N-terminal kinase (JNK), p38, and Akt. Furthermore, mice administered PKCδ inhibitors into the calvaria periosteum exhibited a decrease in both osteoclast formation on the calvarial bone surface and the calvarial bone marrow cavity, which reflects osteoclastic bone resorption activity. These data suggest that M-CSF-induced PKCδ activation maintains membrane-anchored c-Fms and allows the sequential cellular events of osteoclastogenic signalling, osteoclast formation, and osteoclastic bone resorption.
Collapse
Affiliation(s)
- Mi Yeong Kim
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu, 42415, Korea
| | - Kyunghee Lee
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu, 42415, Korea
| | - Hong-In Shin
- IHBR, Department of Oral Pathology, School of Dentistry, Kyungpook National University, Daegu, 41940, Korea
| | - Daewon Jeong
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu, 42415, Korea.
| |
Collapse
|
18
|
Narahara S, Sakai E, Kadowaki T, Yamaguchi Y, Narahara H, Okamoto K, Asahina I, Tsukuba T. KBTBD11, a novel BTB-Kelch protein, is a negative regulator of osteoclastogenesis through controlling Cullin3-mediated ubiquitination of NFATc1. Sci Rep 2019; 9:3523. [PMID: 30837587 PMCID: PMC6401029 DOI: 10.1038/s41598-019-40240-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 02/12/2019] [Indexed: 01/10/2023] Open
Abstract
Kelch repeat and BTB domain-containing protein 11 (KBTBD11) is a member of the KBTBD subfamily of proteins that possess a BTB domain and Kelch repeats. Despite the presence of the Kbtbd11 gene in mammalian genomes, there are few reports about KBTBD11 at present. In this study, we identified the novel protein KBTBD11 as a negative regulator of osteoclast differentiation. We found that expression of KBTBD11 increased during osteoclastogenesis. Small-interfering-RNA-mediated knockdown of KBTBD11 enhanced osteoclast formation, and markedly increased the expression of several osteoclast marker genes compared with control cells. Conversely, KBTBD11 overexpression impaired osteoclast differentiation, and decreased the expression of osteoclast marker genes. Among six major signaling pathways regulating osteoclast differentiation, KBTBD11 predominantly influenced the nuclear factor of activated T cell cytoplasmic-1 (NFATc1) pathway. Mechanistically, KBTBD11 was found to interact with an E3 ubiquitin ligase, Cullin3. Further experiments involving immunoprecipitation and treatment with MG132, a proteasome inhibitor, showed that the KBTBD11–Cullin3 promotes ubiquitination and degradation of NFATc1 by the proteasome. Considering that NFATc1 is an essential factor for osteoclast differentiation, the KBTBD11 and Cullin3 probably regulate the levels of NFATc1 through the ubiquitin-proteasome degradation system. Thus, KBTBD11 negatively modulates osteoclast differentiation by controlling Cullin3-mediated ubiquitination of NFATc1.
Collapse
Affiliation(s)
- Shun Narahara
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8588, Japan.,Department of Regenerative Oral Surgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8588, Japan
| | - Eiko Sakai
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8588, Japan
| | - Tomoko Kadowaki
- Department of Frontier Life Science, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8588, Japan
| | - Yu Yamaguchi
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8588, Japan
| | - Haruna Narahara
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8588, Japan
| | - Kuniaki Okamoto
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8588, Japan.,Department of Dental Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8525, Japan
| | - Izumi Asahina
- Department of Regenerative Oral Surgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8588, Japan
| | - Takayuki Tsukuba
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8588, Japan.
| |
Collapse
|