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Deng AF, Wang FX, Wang SC, Zhang YZ, Bai L, Su JC. Bone-organ axes: bidirectional crosstalk. Mil Med Res 2024; 11:37. [PMID: 38867330 PMCID: PMC11167910 DOI: 10.1186/s40779-024-00540-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 05/31/2024] [Indexed: 06/14/2024] Open
Abstract
In addition to its recognized role in providing structural support, bone plays a crucial role in maintaining the functionality and balance of various organs by secreting specific cytokines (also known as osteokines). This reciprocal influence extends to these organs modulating bone homeostasis and development, although this aspect has yet to be systematically reviewed. This review aims to elucidate this bidirectional crosstalk, with a particular focus on the role of osteokines. Additionally, it presents a unique compilation of evidence highlighting the critical function of extracellular vesicles (EVs) within bone-organ axes for the first time. Moreover, it explores the implications of this crosstalk for designing and implementing bone-on-chips and assembloids, underscoring the importance of comprehending these interactions for advancing physiologically relevant in vitro models. Consequently, this review establishes a robust theoretical foundation for preventing, diagnosing, and treating diseases related to the bone-organ axis from the perspective of cytokines, EVs, hormones, and metabolites.
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Affiliation(s)
- An-Fu Deng
- Institute of Translational Medicine, Organoid Research Center, Shanghai University, Shanghai, 200444, China
- National Center for Translational Medicine (Shanghai) SHU Branch, Shanghai University, Shanghai, 200444, China
| | - Fu-Xiao Wang
- Institute of Translational Medicine, Organoid Research Center, Shanghai University, Shanghai, 200444, China
- National Center for Translational Medicine (Shanghai) SHU Branch, Shanghai University, Shanghai, 200444, China
| | - Si-Cheng Wang
- Institute of Translational Medicine, Organoid Research Center, Shanghai University, Shanghai, 200444, China
- National Center for Translational Medicine (Shanghai) SHU Branch, Shanghai University, Shanghai, 200444, China
- Department of Orthopedics, Shanghai Zhongye Hospital, Shanghai, 200444, China
| | - Ying-Ze Zhang
- Department of Orthopaedics, the Third Hospital of Hebei Medical University, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang, 050051, China.
| | - Long Bai
- Institute of Translational Medicine, Organoid Research Center, Shanghai University, Shanghai, 200444, China.
- National Center for Translational Medicine (Shanghai) SHU Branch, Shanghai University, Shanghai, 200444, China.
- School of Medicine, Shanghai University, Shanghai, 200444, China.
- Wenzhou Institute of Shanghai University, Wenzhou, 325000, Zhejiang, China.
| | - Jia-Can Su
- Institute of Translational Medicine, Organoid Research Center, Shanghai University, Shanghai, 200444, China.
- National Center for Translational Medicine (Shanghai) SHU Branch, Shanghai University, Shanghai, 200444, China.
- Department of Orthopaedics, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
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Saulacic N, Katagiri H, Fujioka-Kobayashi M, Ferrari SL, Gerbaix MC. Alternated activation with relaxation of periosteum stimulates bone modeling and remodeling. Sci Rep 2024; 14:11136. [PMID: 38750119 PMCID: PMC11096315 DOI: 10.1038/s41598-024-61902-w] [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: 01/22/2024] [Accepted: 05/10/2024] [Indexed: 05/18/2024] Open
Abstract
Gradual elevation of the periosteum from the original bone surface, based on the principle of distraction osteogenesis, induces endogenous hard and soft tissue formation. This study aimed to assess the impact of alternating protocols of activation with relaxation (periosteal pumping) on bone modeling and remodeling. One hundred and sixty-two adult male Wistar rats were used in this study. Four test groups with different pumping protocols were created based on the relaxation applied. Two control groups underwent an activation period without relaxation or only a single activation. One group was sham-operated. Periosteal pumping without period of activation induced gene expression in bone and bone remodeling, and following activation period enhanced bone modeling. Four test groups and control group with activation period equaled the values of bone modeling at the end-consolidation period, showing significant downregulation of Sost in the bone and periosteum compared to that in the sham group (p < 0.001 and p < 0.001, respectively). When all test groups were pooled together, plate elevation from the bony surface increased bone remodeling on day 45 of the observation period (p = 0.003). Furthermore, bone modeling was significantly affected by plate elevation on days 17 and 45 (p = 0.047 and p = 0.005, respectively) and by pumping protocol on day 31 (p = 0.042). Periosteal pumping was beneficial for increasing bone repair when the periosteum remained in contact with the underlaying bony surface during the manipulation period. Following periosteal elevation, periosteal pumping accelerated bone formation from the bony surface by the modeling process.
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Affiliation(s)
- Nikola Saulacic
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, University of Bern, Bern, Switzerland.
| | - Hiroki Katagiri
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, University of Bern, Bern, Switzerland
- Advanced Research Center, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, University of Bern, Bern, Switzerland
- Department of Oral and Maxillofacial Surgery, The Nippon Dental University School of Life Dentistry at Tokyo, Tokyo, Japan
| | - Serge L Ferrari
- Service of Bone Diseases, Department Medicine, Faculty of Medicine, Geneva University Hospital, Geneva, Switzerland
| | - Maude C Gerbaix
- Service of Bone Diseases, Department Medicine, Faculty of Medicine, Geneva University Hospital, Geneva, Switzerland
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3
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Leanza G, Cannata F, Faraj M, Pedone C, Viola V, Tramontana F, Pellegrini N, Vadalà G, Piccoli A, Strollo R, Zalfa F, Beeve AT, Scheller EL, Tang SY, Civitelli R, Maccarrone M, Papalia R, Napoli N. Bone canonical Wnt signaling is downregulated in type 2 diabetes and associates with higher advanced glycation end-products (AGEs) content and reduced bone strength. eLife 2024; 12:RP90437. [PMID: 38598270 PMCID: PMC11006415 DOI: 10.7554/elife.90437] [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] [Indexed: 04/11/2024] Open
Abstract
Type 2 diabetes (T2D) is associated with higher fracture risk, despite normal or high bone mineral density. We reported that bone formation genes (SOST and RUNX2) and advanced glycation end-products (AGEs) were impaired in T2D. We investigated Wnt signaling regulation and its association with AGEs accumulation and bone strength in T2D from bone tissue of 15 T2D and 21 non-diabetic postmenopausal women undergoing hip arthroplasty. Bone histomorphometry revealed a trend of low mineralized volume in T2D (T2D 0.249% [0.156-0.366]) vs non-diabetic subjects 0.352% [0.269-0.454]; p=0.053, as well as reduced bone strength (T2D 21.60 MPa [13.46-30.10] vs non-diabetic subjects 76.24 MPa [26.81-132.9]; p=0.002). We also showed that gene expression of Wnt agonists LEF-1 (p=0.0136) and WNT10B (p=0.0302) were lower in T2D. Conversely, gene expression of WNT5A (p=0.0232), SOST (p<0.0001), and GSK3B (p=0.0456) were higher, while collagen (COL1A1) was lower in T2D (p=0.0482). AGEs content was associated with SOST and WNT5A (r=0.9231, p<0.0001; r=0.6751, p=0.0322), but inversely correlated with LEF-1 and COL1A1 (r=-0.7500, p=0.0255; r=-0.9762, p=0.0004). SOST was associated with glycemic control and disease duration (r=0.4846, p=0.0043; r=0.7107, p=0.00174), whereas WNT5A and GSK3B were only correlated with glycemic control (r=0.5589, p=0.0037; r=0.4901, p=0.0051). Finally, Young's modulus was negatively correlated with SOST (r=-0.5675, p=0.0011), AXIN2 (r=-0.5523, p=0.0042), and SFRP5 (r=-0.4442, p=0.0437), while positively correlated with LEF-1 (r=0.4116, p=0.0295) and WNT10B (r=0.6697, p=0.0001). These findings suggest that Wnt signaling and AGEs could be the main determinants of bone fragility in T2D.
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Affiliation(s)
- Giulia Leanza
- Department of Medicine and Surgery, Research Unit of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del PortilloRomaItaly
- Operative Research Unit of Osteometabolic and Thyroid Diseases, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del PortilloRomaItaly
| | - Francesca Cannata
- Department of Medicine and Surgery, Research Unit of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del PortilloRomaItaly
| | - Malak Faraj
- Department of Medicine and Surgery, Research Unit of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del PortilloRomaItaly
| | - Claudio Pedone
- Operative Research Unit of Geriatrics, Fondazione Policlinico Universitario Campus Bio Medico, Via Alvaro del PortilloRomaItaly
| | - Viola Viola
- Department of Medicine and Surgery, Research Unit of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del PortilloRomaItaly
| | - Flavia Tramontana
- Department of Medicine and Surgery, Research Unit of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del PortilloRomaItaly
- Operative Research Unit of Osteometabolic and Thyroid Diseases, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del PortilloRomaItaly
| | - Niccolò Pellegrini
- Department of Medicine and Surgery, Research Unit of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del PortilloRomaItaly
| | - Gianluca Vadalà
- Operative Research Unit of Orthopedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del PortilloRomaItaly
| | - Alessandra Piccoli
- Department of Medicine and Surgery, Research Unit of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del PortilloRomaItaly
| | - Rocky Strollo
- Department of Human Sciences and Promotion of the Quality of Life San Raffaele Roma Open University Via di Val CannutaRomaItaly
| | - Francesca Zalfa
- Predictive Molecular Diagnostic Unit, Pathology Department, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del PortilloRomaItaly
- Microscopic and Ultrastructural Anatomy Unit, Università Campus Bio-Medico di Roma, Via Alvaro del PortilloRomaItaly
| | - Alec T Beeve
- Department of Medicine, Division of Bone and Mineral Diseases, Musculoskeletal Research Center, Washington University School of MedicineSt. LouisUnited States
| | - Erica L Scheller
- Department of Medicine, Division of Bone and Mineral Diseases, Musculoskeletal Research Center, Washington University School of MedicineSt. LouisUnited States
| | - Simon Y Tang
- Department of Orthopaedic Surgery, Washington University in St. LouisSt LouisUnited States
| | - Roberto Civitelli
- Department of Medicine, Division of Bone and Mineral Diseases, Musculoskeletal Research Center, Washington University School of MedicineSt. LouisUnited States
| | - Mauro Maccarrone
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, Via Vetoio sncAquilaItaly
- European Center for Brain Research, Santa Lucia Foundation IRCCSRomaItaly
| | - Rocco Papalia
- Operative Research Unit of Orthopedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del PortilloRomaItaly
| | - Nicola Napoli
- Department of Medicine and Surgery, Research Unit of Endocrinology and Diabetes, Università Campus Bio-Medico di Roma, Via Alvaro del PortilloRomaItaly
- Operative Research Unit of Osteometabolic and Thyroid Diseases, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del PortilloRomaItaly
- Department of Medicine, Division of Bone and Mineral Diseases, Musculoskeletal Research Center, Washington University School of MedicineSt. LouisUnited States
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Buck HV, Stains JP. Osteocyte-mediated mechanical response controls osteoblast differentiation and function. Front Physiol 2024; 15:1364694. [PMID: 38529481 PMCID: PMC10961341 DOI: 10.3389/fphys.2024.1364694] [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: 01/02/2024] [Accepted: 02/29/2024] [Indexed: 03/27/2024] Open
Abstract
Low bone mass is a pervasive global health concern, with implications for osteoporosis, frailty, disability, and mortality. Lifestyle factors, including sedentary habits, metabolic dysfunction, and an aging population, contribute to the escalating prevalence of osteopenia and osteoporosis. The application of mechanical load to bone through physical activity and exercise prevents bone loss, while sufficient mechanical load stimulates new bone mass acquisition. Osteocytes, cells embedded within the bone, receive mechanical signals and translate these mechanical cues into biological signals, termed mechano-transduction. Mechano-transduction signals regulate other bone resident cells, such as osteoblasts and osteoclasts, to orchestrate changes in bone mass. This review explores the mechanisms through which osteocyte-mediated response to mechanical loading regulates osteoblast differentiation and bone formation. An overview of bone cell biology and the impact of mechanical load will be provided, with emphasis on the mechanical cues, mechano-transduction pathways, and factors that direct progenitor cells toward the osteoblast lineage. While there are a wide range of clinically available treatments for osteoporosis, the majority act through manipulation of the osteoclast and may have significant disadvantages. Despite the central role of osteoblasts to the deposition of new bone, few therapies directly target osteoblasts for the preservation of bone mass. Improved understanding of the mechanisms leading to osteoblastogenesis may reveal novel targets for translational investigation.
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Affiliation(s)
| | - Joseph Paul Stains
- School of Medicine, University of Maryland, Baltimore, MD, United States
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Du X, Zang C, Wang Q. Cyclin A1 (CCNA1) inhibits osteoporosis by suppressing transforming growth factor-beta (TGF-beta) pathway in osteoblasts. BMC Musculoskelet Disord 2024; 25:206. [PMID: 38454404 PMCID: PMC10919014 DOI: 10.1186/s12891-024-07303-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 02/22/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Osteoporosis is a genetic disease caused by the imbalance between osteoblast-led bone formation and osteoclast-induced bone resorption. However, further gene-related pathogenesis remains to be elucidated. METHODS The aberrant expressed genes in osteoporosis was identified by analyzing the microarray profile GSE100609. Serum samples of patients with osteoporosis and normal group were collected, and the mRNA expression of candidate genes was detected by quantitative real-time polymerase chain reaction (qRT-PCR). The mouse cranial osteoblast MC3T3-E1 cells were treated with dexamethasone (DEX) to mimic osteoporosis in vitro. Alizarin Red staining and alkaline phosphatase (ALP) staining methods were combined to measure matrix mineralization deposition of MC3T3-E1 cells. Meanwhile, the expression of osteogenesis related genes including alkaline phosphatase (ALP), osteocalcin (OCN), osteopontin (OPN), Osterix, and bone morphogenetic protein 2 (BMP2) were evaluated by qRT-PCR and western blotting methods. Then the effects of candidate genes on regulating impede bone loss caused by ovariectomy (OVX) in mice were studied. RESULTS Cyclin A1 (CCNA1) was found to be significantly upregulated in serum of osteoporosis patients and the osteoporosis model cells, which was in line with the bioinformatic analysis. The osteogenic differentiation ability of MC3T3-E1 cells was inhibited by DEX treatment, which was manifested by decreased Alizarin Red staining intensity, ALP staining intensity, and expression levels of ALP, OCN, OPN, Osterix, and BMP2. The effects of CCNA1 inhibition on regulating osteogenesis were opposite to that of DEX. Then, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis demonstrated that genes negatively associated with CCNA1 were enriched in the TGF-beta signaling pathway. Inhibitor of TGF-beta signaling pathway partly reversed osteogenesis induced by suppressed CCNA1. Furthermore, suppressed CCNA1 relieved bone mass of OVX mice in vivo. CONCLUSION Downregulation of CCNA1 could activate TGF-beta signaling pathway and promote bone formation, thus playing a role in treatment of osteoporosis.
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Affiliation(s)
- Xiao Du
- Department of Orthopedics, Beijing Geriatric Hospital, No.118 Hot Spring Road, Haidian District 100095, Beijing, China
| | - Chuanyi Zang
- Department of Orthopedics, Beijing Geriatric Hospital, No.118 Hot Spring Road, Haidian District 100095, Beijing, China
| | - Qinglei Wang
- Department of Orthopedics, Beijing Geriatric Hospital, No.118 Hot Spring Road, Haidian District 100095, Beijing, China.
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González-Salvatierra S, García-Fontana C, Lacal J, Andújar-Vera F, Martínez-Heredia L, Sanabria-de la Torre R, Ferrer-Millán M, Moratalla-Aranda E, Muñoz-Torres M, García-Fontana B. Cardioprotective function of sclerostin by reducing calcium deposition, proliferation, and apoptosis in human vascular smooth muscle cells. Cardiovasc Diabetol 2023; 22:301. [PMID: 37919715 PMCID: PMC10623848 DOI: 10.1186/s12933-023-02043-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 10/23/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND Sclerostin is an inhibitor of the Wnt/b-catenin pathway, which regulates bone formation, and can be expressed in vascular smooth muscle cells (VSMCs). Type 2 diabetes (T2D) is associated with an increased risk of cardiovascular disease (CVD) and increased serum and tissue expression of sclerostin. However, whether the role of sclerostin is detrimental or protective in the development of CVD is unknown. Therefore, our aims are to determine the level of sclerostin in T2D patients with/without CVD and in controls, both at serum and vascular tissue, and to analyze the role of sclerostin in VSMCs under calcified environments. METHODS Cross-sectional study including 121 controls and 139 T2D patients with/without CVD (48/91). Sclerostin levels in serum were determined by ELISA, and sclerostin expression was analyzed by RT-qPCR and immunohistochemistry in calcified and non-calcified artery of lower limb from T2D patients (n = 7) and controls (n = 3). In vitro experiments were performed in VSMCs (mock and sclerostin overexpression) under calcifying conditions analyzing the sclerostin function by determination of calcium and phosphate concentrations, and quantification of calcium deposits by Alizarin Red. Proliferation and apoptosis were analyzed by MTT assay and flow cytometry, respectively. The regulation of the expression of genes involved in bone metabolism was determined by RT-qPCR. RESULTS A significant increase in serum sclerostin levels in T2D patients with CVD compared to T2D patients without CVD and controls (p < 0.001) was observed. Moreover, higher circulating sclerostin levels were independently associated with CVD in T2D patients. Increased sclerostin expression was observed in calcified arteries of T2D patients compared to non-calcified arteries of controls (p = 0.003). In vitro experiments using VSMCs under calcified conditions, revealed that sclerostin overexpression reduced intracellular calcium (p = 0.001), calcium deposits (p < 0.001), cell proliferation (p < 0.001) and promoted cell survival (p = 0.015). Furthermore, sclerostin overexpression exhibited up-regulation of ALPL (p = 0.009), RUNX2 (p = 0.001) and COX2 (p = 0.003) and down-regulation of inflammatory genes, such as, IL1β (p = 0.005), IL6 (p = 0.001) and IL8 (p = 0.003). CONCLUSIONS Sclerostin could play a protective role in the development of atherosclerosis in T2D patients by reducing calcium deposits, decreasing proliferation and inflammation, and promoting cell survival in VSMCs under calcifying conditions. Therefore, considering the bone-vascular axis, treatment with anti-sclerostin for bone disease should be used with caution.
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Affiliation(s)
- Sheila González-Salvatierra
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, 18012, Spain
- Endocrinology and Nutrition Unit, University Hospital Clínico San Cecilio, Granada, 18016, Spain
- Department of Biochemistry and Molecular Biology II, University of Granada, Granada, 18071, Spain
| | - Cristina García-Fontana
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, 18012, Spain.
- Endocrinology and Nutrition Unit, University Hospital Clínico San Cecilio, Granada, 18016, Spain.
- Institute of Health Carlos III, CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, 28029, Spain.
| | - Jesus Lacal
- Laboratory of Functional Genetics of Rare Diseases, Department of Microbiology and Genetics, University of Salamanca (USAL), 37007, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), 37007, Salamanca, Spain
| | - Francisco Andújar-Vera
- Bioinformatic Research Service, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, 18012, Spain
- Department of Computer Science and Artificial Intelligence, University of Granada, Granada, 18071, Spain
- Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI Institute), Granada, 18014, Spain
| | | | - Raquel Sanabria-de la Torre
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, 18012, Spain
- Department of Biochemistry, Molecular Biology III and Immunology, University of Granada, Granada, 18071, Spain
| | - María Ferrer-Millán
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, 18012, Spain
| | - Enrique Moratalla-Aranda
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, 18012, Spain
- Nuclear Medicine Unit, University Hospital Clínico San Cecilio, Granada, 18016, Spain
| | - Manuel Muñoz-Torres
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, 18012, Spain.
- Endocrinology and Nutrition Unit, University Hospital Clínico San Cecilio, Granada, 18016, Spain.
- Institute of Health Carlos III, CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, 28029, Spain.
- Department of Medicine, University of Granada, Granada, 18016, Spain.
| | - Beatriz García-Fontana
- Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, 18012, Spain
- Institute of Health Carlos III, CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, 28029, Spain
- Department of Cell Biology, University of Granada, Granada, 18016, Spain
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Lv Z, Zhang J, Liang S, Zhou C, Hu D, Brooks DJ, Bouxsein ML, Lanske B, Kostenuik P, Gori F, Baron R. Comparative study in estrogen-depleted mice identifies skeletal and osteocyte transcriptomic responses to abaloparatide and teriparatide. JCI Insight 2023; 8:e161932. [PMID: 37870958 PMCID: PMC10619488 DOI: 10.1172/jci.insight.161932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 09/08/2023] [Indexed: 10/25/2023] Open
Abstract
Osteocytes express parathyroid hormone (PTH)/PTH-related protein (PTHrP) receptors and respond to the PTHrP analog abaloparatide (ABL) and to the PTH 1-34 fragment teriparatide (TPTD), which are used to treat osteoporosis. Several studies indicate overlapping but distinct skeletal responses to ABL or TPTD, but their effects on cortical bone may differ. Little is known about their differential effects on osteocytes. We compared cortical osteocyte and skeletal responses to ABL and TPTD in sham-operated and ovariectomized mice. Administered 7 weeks after ovariectomy for 4 weeks at a dose of 40 μg/kg/d, TPTD and ABL had similar effects on trabecular bone, but ABL showed stronger effects in cortical bone. In cortical osteocytes, both treatments decreased lacunar area, reflecting altered peri-lacunar remodeling favoring matrix accumulation. Osteocyte RNA-Seq revealed that several genes and pathways were altered by ovariectomy and affected similarly by TPTD and ABL. Notwithstanding, several signaling pathways were uniquely regulated by ABL. Thus, in mice, TPTD and ABL induced a positive osteocyte peri-lacunar remodeling balance, but ABL induced stronger cortical responses and affected the osteocyte transcriptome differently. We concluded that ABL affected the cortical osteocyte transcriptome in a manner subtly different from TPTD, resulting in more beneficial remodeling/modeling changes and homeostasis of the cortex.
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Affiliation(s)
- Zhengtao Lv
- Division of Bone and Mineral Research, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Jiaming Zhang
- Division of Bone and Mineral Research, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Shuang Liang
- Division of Bone and Mineral Research, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Chenhe Zhou
- Division of Bone and Mineral Research, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Dorothy Hu
- Division of Bone and Mineral Research, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Daniel J. Brooks
- Center for Advanced Orthopedic Studies, Department of Orthopedic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Mary L. Bouxsein
- Center for Advanced Orthopedic Studies, Department of Orthopedic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
- Harvard Medical School and Massachusetts General Hospital (MGH) Endocrine Unit, Boston, Massachusetts, USA
| | | | | | - Francesca Gori
- Division of Bone and Mineral Research, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Roland Baron
- Division of Bone and Mineral Research, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
- Harvard Medical School and Massachusetts General Hospital (MGH) Endocrine Unit, Boston, Massachusetts, USA
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8
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Laster DJ, Akel NS, Hendrixson JA, James A, Crawford JA, Fu Q, Berryhill SB, Thostenson JD, Nookaew I, O’Brien CA, Onal M. CRISPR interference provides increased cell type-specificity compared to the Cre-loxP system. iScience 2023; 26:107428. [PMID: 37575184 PMCID: PMC10415806 DOI: 10.1016/j.isci.2023.107428] [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: 12/16/2022] [Revised: 06/12/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023] Open
Abstract
Cre-mediated recombination is frequently used for cell type-specific loss of function (LOF) studies. A major limitation of this system is recombination in unwanted cell types. CRISPR interference (CRISPRi) has been used effectively for global LOF in mice. However, cell type-specific CRISPRi, independent of recombination-based systems, has not been reported. To test the feasibility of cell type-specific CRISPRi, we produced two novel knock-in mouse models that achieve gene suppression when used together: one expressing dCas9::KRAB under the control of a cell type-specific promoter and the other expressing a single guide RNA from a safe harbor locus. We then compared the phenotypes of mice in which the same gene was targeted by either CRISPRi or the Cre-loxP system, with cell specificity conferred by Dmp1 regulatory elements in both cases. We demonstrate that CRISPRi is effective for cell type-specific LOF and that it provides improved cell type-specificity compared to the Cre-loxP system.
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Affiliation(s)
- Dominique J. Laster
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Nisreen S. Akel
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - James A. Hendrixson
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Alicen James
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Julie A. Crawford
- Center for Musculoskeletal Disease Research (CMDR), University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Qiang Fu
- Center for Musculoskeletal Disease Research (CMDR), University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Stuart B. Berryhill
- Center for Musculoskeletal Disease Research (CMDR), University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Jeff D. Thostenson
- Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Intawat Nookaew
- Center for Musculoskeletal Disease Research (CMDR), University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Charles A. O’Brien
- Center for Musculoskeletal Disease Research (CMDR), University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Melda Onal
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Center for Musculoskeletal Disease Research (CMDR), University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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9
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Moretti A, Iolascon G. Sclerostin: clinical insights in muscle-bone crosstalk. J Int Med Res 2023; 51:3000605231193293. [PMID: 37632438 PMCID: PMC10467411 DOI: 10.1177/03000605231193293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 07/21/2023] [Indexed: 08/28/2023] Open
Abstract
Sclerostin, a protein encoded by the sclerostin (SOST) gene, is mostly expressed in osteocytes. First described in the pathogenesis of three disorders, sclerosteosis, van Buchem's disease, and craniodiaphyseal dysplasia, sclerostin has been identified as an important regulator of bone homeostasis, controlling bone formation by osteoblasts through inhibition of the canonical Wnt signaling pathway. Recent studies have highlighted a hypothetical role of sclerostin in myogenesis, thus modulating the interaction between bone and muscle. This narrative review provides an overview of the clinical implications of sclerostin modulation on skeletal muscle mass and function, and bone metabolism. Improving knowledge about muscle-bone crosstalk may represent a turning point in the development of therapeutic strategies for musculoskeletal disorders, particularly osteosarcopenia.
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Affiliation(s)
- Antimo Moretti
- Department of Medical and Surgical Specialties and Dentistry, University of Campania ‘Luigi Vanvitelli’, Naples, Italy
| | - Giovanni Iolascon
- Department of Medical and Surgical Specialties and Dentistry, University of Campania ‘Luigi Vanvitelli’, Naples, Italy
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10
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Tirandi A, Arboscello E, Ministrini S, Liberale L, Bonaventura A, Vecchié A, Bertolotto M, Giacobbe DR, Castellani L, Mirabella M, Minetti S, Bassetti M, Montecucco F, Carbone F. Early sclerostin assessment in frail elderly patients with sepsis: insights on short- and long-term mortality prediction. Intern Emerg Med 2023; 18:1509-1519. [PMID: 36943596 PMCID: PMC10412666 DOI: 10.1007/s11739-023-03223-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/08/2023] [Indexed: 03/23/2023]
Abstract
Unmet needs challenge clinical management of sepsis especially concerning patient profiling, enhancing recovery, and long-term sequelae. Here, we preliminarily focused on sclerostin (SOST) as a candidate biomarker to encompass such a broad range of clinical needs related to sepsis. Seventy-three septic patients were enrolled at internal medicine wards between January 2017 and December 2019 in this pilot study. Clinical examination and blood sample analyses were collected at enrollment and after 7 and 14 days. SOST levels were assessed on serum by ELISA. Thirty-day mortality was set as primary outcome. In-hospital and long-term mortality (2.5 years of median follow-up) were assessed as secondary outcomes. Patients were frail, elderly, and heterogeneous in terms of comorbidity burden. SOST levels were associated with age, cardiovascular comorbidities, and time to early death (30 days). When regression models were built, SOST displayed a high predictive value toward 30-day mortality (OR 13.459 with 95% CI 1.226-148.017) with ever better performance than validated scoring scales for critical ill patients. Such a predictive value of SOST was further confirmed for in-hospital (HR 10.089 with 95% CI 1.375-74.013) and long-term mortality (HR 5.061 with 95% CI 1.379-18.570). SOST levels generally decreased over 7 to 14 days after enrollment (p for trend < 0.001). The degree of this variation further predicted long-term mortality (HR for Δ SOST T0-day 14: 1.006 with 95% CI 1.001-1.011). Our results suggest a role for SOST in both short- and long-time prediction of worse outcome in septic elderly admitted to internal medicine wards.
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Affiliation(s)
- Amedeo Tirandi
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy
| | - Eleonora Arboscello
- IRCCS Ospedale Policlinico San Martino, 10 Largo Rosanna Benzi, 16132, Genoa, Italy
| | - Stefano Ministrini
- Center for Molecular Cardiology, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
- Internal Medicine, Angiology and Atherosclerosis, Department of Medicine and Surgery, Università Degli Studi di Perugia, piazzale Gambuli 1, 06129, Perugia, Italy
| | - Luca Liberale
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, 10 Largo Rosanna Benzi, 16132, Genoa, Italy
| | - Aldo Bonaventura
- Medicina Generale 1, Medical Center, Ospedale di Circolo e Fondazione Macchi, ASST Sette Laghi, Varese, Italy
| | | | - Maria Bertolotto
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy
| | - Daniele Roberto Giacobbe
- IRCCS Ospedale Policlinico San Martino, 10 Largo Rosanna Benzi, 16132, Genoa, Italy
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Luca Castellani
- IRCCS Ospedale Policlinico San Martino, 10 Largo Rosanna Benzi, 16132, Genoa, Italy
| | - Michele Mirabella
- IRCCS Ospedale Policlinico San Martino, 10 Largo Rosanna Benzi, 16132, Genoa, Italy
| | - Silvia Minetti
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy
| | - Matteo Bassetti
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Fabrizio Montecucco
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, 10 Largo Rosanna Benzi, 16132, Genoa, Italy
| | - Federico Carbone
- Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy.
- IRCCS Ospedale Policlinico San Martino, 10 Largo Rosanna Benzi, 16132, Genoa, Italy.
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11
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Hu M, Zhang Y, Guo J, Guo C, Yang X, Ma X, Xu H, Xiang S. Meta-analysis of the effects of denosumab and romosozumab on bone mineral density and turnover markers in patients with osteoporosis. Front Endocrinol (Lausanne) 2023; 14:1188969. [PMID: 37529613 PMCID: PMC10390296 DOI: 10.3389/fendo.2023.1188969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 06/14/2023] [Indexed: 08/03/2023] Open
Abstract
Purpose To assess the alterations in bone mineral density and bone turnover marker concentrations following the administration of denosumab and romosozumab therapies in patients with osteoporosis. Methods PubMed was searched for studies published until January 28, 2023, that investigated the clinical efficacy and bone turnover marker changes of denosumab and romosozumab in the treatment of osteoporosis, with a minimum follow-up of 3 months in each study. Studies were screened, and data on changes in bone mineral density (BMD), P1NP, and TRACP-5b levels after treatment were extracted and included in the analysis. Results Six studies were analyzed. At 3 months after treatment, the romosozumab group showed greater changes in lumbar BMD and bone turnover markers. BMD of total hip and femoral neck was relatively delayed. Beginning at 6 to 12 months, romosozumab showed greater changes in bone mineral density and markers of bone turnover. Conclusion Both romosozumab and denosumab have antiosteoporotic effects, with greater effects on BMD and bone turnover markers observed within 12 months of romosozumab treatment. Systematic Review Registration https://www.crd.york.ac.uk/prospero, identifier CRD42023395034.
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Affiliation(s)
| | | | | | | | | | | | - Hao Xu
- *Correspondence: Hao Xu, ; Shuai Xiang,
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12
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Ewendt F, Lehmann A, Wodak MF, Stangl GI. All- trans Retinoic Acid and Beta-Carotene Increase Sclerostin Production in C2C12 Myotubes. Biomedicines 2023; 11:biomedicines11051432. [PMID: 37239103 DOI: 10.3390/biomedicines11051432] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Sclerostin is a protein secreted by osteocytes whose encoding gene SOST is regulated by mechanical stimuli, cytokines, and all-trans retinoic acid (ATRA) and mediates antianabolic effects on bone formation as an inhibitor of the canonical Wnt/β-catenin pathway. Interestingly, skeletal muscle has recently been identified as another source of sclerostin, suggesting that the musculature may play an important role in maintaining bone mass. However, regulators of muscular SOST expression are virtually unknown. This study investigates the influence of ATRA and the provitamin A derivative beta-carotene (β-C) on sclerostin synthesis in muscle cells. The impact of ATRA, its synthetic analog TTNPB, and β-C on Sost transcription was analyzed by qRT-PCR in C2C12 myotubes and the secreted sclerostin protein by ELISA. ATRA strongly increases the sclerostin synthesis in C2C12 myotubes in a dose-dependent manner. The stimulating effect of ATRA and TTNPB on Sost is largely reduced in the presence of the retinoic acid receptor inhibitor AGN193109. β-C also increases the Sost expression, but this effect vanishes when β-C is coincubated with beta-carotene 15,15'-monooxygenase 1 (BCMO1)-specific siRNA. Thus, ATRA is a potent stimulator of sclerostin release in muscle cells. β-C can also increase Sost mRNA abundance, but this effect depends on the conversion to a retinoid.
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Affiliation(s)
- Franz Ewendt
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany
| | - Anne Lehmann
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany
| | - Maximilian F Wodak
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany
| | - Gabriele I Stangl
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany
- NutriCARD Competence Cluster for Nutrition and Cardiovascular Health, Dornburger Str. 25, 07743 Jena, Germany
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13
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Charoenphandhu N, Chanpaisaeng K, Teerapornpuntakit J, Wongdee K. Editorial: Crosstalk between bone and other cells. Front Physiol 2023; 14:1209053. [PMID: 37228815 PMCID: PMC10203695 DOI: 10.3389/fphys.2023.1209053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/02/2023] [Indexed: 05/27/2023] Open
Affiliation(s)
- Narattaphol Charoenphandhu
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
- The Academy of Science, The Royal Society of Thailand, Bangkok, Thailand
| | - Krittikan Chanpaisaeng
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Jarinthorn Teerapornpuntakit
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Kannikar Wongdee
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand
- Faculty of Allied Health Sciences, Burapha University, Chonburi, Thailand
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14
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Sánchez LM, Lacave HM, Ubios M ÁM, Bozal CB. Exposure of suckling rats to hexavalent chromium (CrVI) alters bone formation at the base of the alveolus causing a delay in tooth eruption. J Oral Biosci 2023; 65:195-201. [PMID: 36822318 DOI: 10.1016/j.job.2023.02.003] [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: 02/24/2022] [Revised: 02/10/2023] [Accepted: 02/17/2023] [Indexed: 02/23/2023]
Abstract
OBJECTIVES Hexavalent chromium (CrVI)-exposure of suckling rats has been shown to delay tooth eruption. However, the effects of CrVI-exposure on bone formation at the base of the alveolus, which provides a motive force for tooth eruption in the early stages of the process, remain unknown. The present work sought to evaluate the effect of CrVI-exposure on bone formation at the base of the alveolus during the intraosseous stage of tooth eruption in suckling rats, using histomorphometric and immunohistochemical studies. METHODS Experimental animals received 12.5 mg/kg-bw/day of potassium dichromate dissolved in saline solution by gavage starting on day 4 of the experiment; controls similarly received an equivalent volume of saline. All the animals were euthanized at the age of 9 days. The base of the developing alveolus at the level of the mesial root of the first lower molar was analyzed histomorphometrically and immunohistochemically. Data were statistically analyzed using student's t-test, with statistical significance set at p <0.05. RESULTS CrVI-exposed animals showed lower bone volume and height at the base of the alveolus, a significant preponderance of bone rest on the surface adjacent to the dental follicle, and a significantly lower percentage of positive Runt-related transcription factor-2 (RUNX2+) osteoblasts and a significantly higher number of mesenchymal-like RUNX2+ cells at the latter site. CONCLUSION CrVI-exposure during lactation affects bone formation at the base of the developing alveolus, delaying tooth eruption. These findings underscore the importance of controlling drinking water levels of toxic substances since their effects can alter the growth and development of individuals exposed during early childhood.
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Affiliation(s)
- Luciana Marina Sánchez
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Histología y Embriología Buenos Aires, Argentina.
| | - Ht Mariela Lacave
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Histología y Embriología Buenos Aires, Argentina
| | - Ángela Matilde Ubios M
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Histología y Embriología Buenos Aires, Argentina
| | - Carola Bettina Bozal
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Histología y Embriología Buenos Aires, Argentina
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15
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Bone Turnover Markers and Osteokines in Adolescent Female Athletes of High- and Low-Impact Sports Compared With Nonathletic Controls. Pediatr Exerc Sci 2023; 35:41-47. [PMID: 35894972 DOI: 10.1123/pes.2022-0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/14/2022] [Accepted: 05/31/2022] [Indexed: 02/01/2023]
Abstract
This study examined differences in resting concentrations of markers of bone formation and resorption, and osteokines between female adolescent (12-16 y) swimmers, soccer players, and nonathletic controls. Resting, morning blood samples were obtained after an overnight fast from 20 swimmers, 20 soccer players, and 20 nonathletic controls, matched for age. carboxyl-terminal cross-linking telopeptide of type I collagen (CTX), amino-terminal propeptide of type I collagen (P1NP), total osteocalcin (OC), sclerostin, osteoprotegerin (OPG), and receptor activator of nuclear factor kappa B ligand (RANKL) were analyzed in serum. After controlling for percent body fat, there were no significant differences between swimmers and nonathletic controls in any of the measured markers. In contrast, soccer players had significantly higher P1NP (89.5 [25.6] ng·mL-1), OC (57.6 [22.9] ng·mL-1), and OPG (1052.5 [612.6] pg·mL-1) compared with both swimmers (P1NP: 66.5 [20.9] ng·mL-1; OC: 24.9 [12.5] ng·mL-1; OPG: 275.2 [83.8] pg·mL-1) and controls (P1NP: 58.5 [16.2] ng·mL-1; OC: 23.2 [11.9] ng·mL-1; OPG: 265.4 [97.6] pg·mL-1), with no differences in CTX, sclerostin, and RANKL. These results suggest that bone formation is higher in adolescent females engaged in high-impact sports like soccer compared with swimmers and controls.
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16
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Dincel AS, Jørgensen NR. New Emerging Biomarkers for Bone Disease: Sclerostin and Dickkopf-1 (DKK1). Calcif Tissue Int 2023; 112:243-257. [PMID: 36165920 DOI: 10.1007/s00223-022-01020-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 08/26/2022] [Indexed: 01/25/2023]
Abstract
A healthy skeleton depends on a continuous renewal and maintenance of the bone tissue. The process of bone remodeling is highly controlled and consists of a fine-tuned balance between bone formation and bone resorption. Biochemical markers of bone turnover are already in use for monitoring diseases and treatment involving the skeletal system, but novel biomarkers reflecting specific biological processes in bone and interacting tissues may prove useful for diagnostic, prognostic, and monitoring purposes. The Wnt-signaling pathway is one of the most important pathways controlling bone metabolism and consequently the action of inhibitors of the pathway such as sclerostin and Dickkopf-related protein 1 (DKK1) have crucial roles in controlling bone formation and resorption. Thus, they might be potential markers for clinical use as they reflect a number of physiological and pathophysiological events in bone and in the cross-talk with other tissues in the human body. This review focuses on the clinical utility of measurements of circulating sclerostin and DKK1 levels based on preanalytical and analytical considerations and on evidence obtained from published clinical studies. While accumulating evidence points to clear associations with a number of disease states for the two markers, and thus, the potential for especially sclerostin as a biochemical marker that may be used clinically, the lack of standardization or harmonization of the assays still hampers the clinical utility of the markers.
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Affiliation(s)
- Aylin Sepinci Dincel
- Department of Medical Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey
- Department of Clinical Biochemistry, Rigshospitalet, Valdemar Hansens Vej 13 Glostrup, 2600, Copenhagen, Denmark
- Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Niklas Rye Jørgensen
- Department of Medical Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey.
- Department of Clinical Biochemistry, Rigshospitalet, Valdemar Hansens Vej 13 Glostrup, 2600, Copenhagen, Denmark.
- Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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17
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Mao YM, Liao T, Ye QL, Wu GC, Zhang Q, Tao SS, Zhao CN, Wu Q, Dan YL, Pan HF, Ye DQ. Increased circulating sclerostin levels in rheumatoid arthritis patients: an updated meta-analysis. Z Rheumatol 2023; 82:51-58. [PMID: 34545431 DOI: 10.1007/s00393-021-01091-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2021] [Indexed: 01/13/2023]
Abstract
BACKGROUND Sclerostin, a regulator of bone metabolism and vascular calcification involved in regulating the Wnt/β-catenin signaling pathway, has been shown to be involved in the pathogenesis of rheumatoid arthritis (RA). However, current results regarding the circulating sclerostin level of RA patients are debatable. This study aimed to evaluate the circulating level of sclerostin in RA patients and briefly summarize its role. METHOD PubMed, EMBASE, and the Cochrane Library databases were systematically searched till May 27, 2021, for eligible articles. Useful data from all qualified papers were systematically extracted and analyzed using Stata 12.0 software (Stata Corp LP, College Station, TX, USA). RESULTS Overall, 13 qualifying studies including 1030 cases and 561 normal controls were analyzed in this updated meta-analysis. Forest plot of this meta-analysis showed that RA patients had higher circulating sclerostin levels (P < 0.001, standardized mean difference [SMD] = 0.916, 95% CI: 0.235-1.597) compared to normal controls. Subgroup analyses implied that age, region, and assay method were associated with sclerostin level in RA patients. CONCLUSION RA patients have higher circulating sclerostin levels, and these was influenced by age, region, and assay method.
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Affiliation(s)
- Yan-Mei Mao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, 230032, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Tao Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, 230032, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Qian-Ling Ye
- Department of Hematology, The Second Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Guo-Cui Wu
- School of Nursing, Anhui Medical University, 15 Feicui Road, Hefei, Anhui, China
| | - Qin Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, 230032, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Sha-Sha Tao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, 230032, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Chan-Na Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, 230032, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Qian Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, 230032, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Yi-Lin Dan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, 230032, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, 230032, Hefei, Anhui, China. .,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China.
| | - Dong-Qing Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, 230032, Hefei, Anhui, China. .,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China.
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18
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Matthews EZ, Lanham S, White K, Kyriazi ME, Alexaki K, El-Sagheer AH, Brown T, Kanaras AG, J West J, MacArthur BD, Stumpf PS, Oreffo ROC. Single-cell RNA-sequence analysis of human bone marrow reveals new targets for isolation of skeletal stem cells using spherical nucleic acids. J Tissue Eng 2023; 14:20417314231169375. [PMID: 37216034 PMCID: PMC10192814 DOI: 10.1177/20417314231169375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/24/2023] [Indexed: 05/24/2023] Open
Abstract
There is a wealth of data indicating human bone marrow contains skeletal stem cells (SSC) with the capacity for osteogenic, chondrogenic and adipogenic differentiation. However, current methods to isolate SSCs are restricted by the lack of a defined marker, limiting understanding of SSC fate, immunophenotype, function and clinical application. The current study applied single-cell RNA-sequencing to profile human adult bone marrow populations from 11 donors and identified novel targets for SSC enrichment. Spherical nucleic acids were used to detect these mRNA targets in SSCs. This methodology was able to rapidly isolate potential SSCs found at a frequency of <1 in 1,000,000 in human bone marrow, with the capacity for tri-lineage differentiation in vitro and ectopic bone formation in vivo. The current studies detail the development of a platform to advance SSC enrichment from human bone marrow, offering an invaluable resource for further SSC characterisation, with significant therapeutic impact therein.
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Affiliation(s)
- Elloise Z Matthews
- Faculty of Medicine, Centre for Human
Development, Stem Cells and Regeneration, Human Development and Health, Institute of
Developmental Sciences, University of Southampton, Southampton, UK
| | - Stuart Lanham
- Faculty of Medicine, Centre for Human
Development, Stem Cells and Regeneration, Human Development and Health, Institute of
Developmental Sciences, University of Southampton, Southampton, UK
- Cancer Sciences, Faculty of Medicine,
University of Southampton, Southampton, UK
| | - Kate White
- Faculty of Medicine, Centre for Human
Development, Stem Cells and Regeneration, Human Development and Health, Institute of
Developmental Sciences, University of Southampton, Southampton, UK
| | - Maria-Eleni Kyriazi
- College of Engineering and Technology,
American University of the Middle East, Kuwait
| | - Konstantina Alexaki
- Physics and Astronomy, Faculty of
Physical Sciences and Engineering, University of Southampton, Southampton, UK
| | - Afaf H El-Sagheer
- Department of Chemistry, Chemistry
Research Laboratory, University of Oxford, Oxford, UK
- Chemistry Branch, Department of Science
and Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, Suez,
Egypt
| | - Tom Brown
- Department of Chemistry, Chemistry
Research Laboratory, University of Oxford, Oxford, UK
| | - Antonios G Kanaras
- Physics and Astronomy, Faculty of
Physical Sciences and Engineering, University of Southampton, Southampton, UK
- Institute for Life Sciences, University
of Southampton, Southampton, UK
| | - Jonathan J West
- Cancer Sciences, Faculty of Medicine,
University of Southampton, Southampton, UK
- Physics and Astronomy, Faculty of
Physical Sciences and Engineering, University of Southampton, Southampton, UK
| | - Ben D MacArthur
- Faculty of Medicine, Centre for Human
Development, Stem Cells and Regeneration, Human Development and Health, Institute of
Developmental Sciences, University of Southampton, Southampton, UK
- Institute for Life Sciences, University
of Southampton, Southampton, UK
- Mathematical Sciences, University of
Southampton, Southampton, UK
| | - Patrick S Stumpf
- Faculty of Medicine, Centre for Human
Development, Stem Cells and Regeneration, Human Development and Health, Institute of
Developmental Sciences, University of Southampton, Southampton, UK
- Joint Research Center for Computational
Biomedicine, RWTH Aachen University, Aachen, Germany
| | - Richard OC Oreffo
- Faculty of Medicine, Centre for Human
Development, Stem Cells and Regeneration, Human Development and Health, Institute of
Developmental Sciences, University of Southampton, Southampton, UK
- Institute for Life Sciences, University
of Southampton, Southampton, UK
- College of Biomedical Engineering,
China Medical University, Taichung, Taiwan
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19
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Lu Q, Xu J, Jiang H, Wei Q, Huang R, Huang G. The bone-protective mechanisms of active components from TCM drugs in rheumatoid arthritis treatment. Front Pharmacol 2022; 13:1000865. [PMID: 36386147 PMCID: PMC9641143 DOI: 10.3389/fphar.2022.1000865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/10/2022] [Indexed: 12/02/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease whose hallmarks are synovial inflammation and irreversible bone destruction. Bone resorption resulting from osteoclasts involves the whole immune and bone systems. Breakdown of bone remodeling is attributed to overactive immune cells that produce large quantities of cytokines, upregulated differentiation of osteoclasts with enhanced resorptive activities, suppressed differentiation of osteoblasts, invading fibroblasts and microbiota dysbiosis. Despite the mitigation of inflammation, the existing treatment in Western medicine fails to prevent bone loss during disease progression. Traditional Chinese medicine (TCM) has been used for thousands of years in RA treatment, showing great efficacy in bone preservation. The complex components from the decoctions and prescriptions exhibit various pharmacological activities. This review summarizes the research progress that has been made in terms of the bone-protective effect of some representative compounds from TCM drugs and proposes the substantial mechanisms involved in bone metabolism to provide some clues for future studies. These active components systemically suppress bone destruction via inhibiting joint inflammation, osteoclast differentiation, and fibroblast proliferation. Neutrophil, gut microenvironment and microRNA has been proposed as future focus.
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Affiliation(s)
- Qingyi Lu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Jie Xu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Haixu Jiang
- School of Chinese Materia, Beijing University of Chinese Medicine, Beijing, China
| | - Qiuzhu Wei
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Runyue Huang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
- *Correspondence: Guangrui Huang, ; Runyue Huang,
| | - Guangrui Huang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
- *Correspondence: Guangrui Huang, ; Runyue Huang,
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20
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Amado CA, García-Unzueta M, Agüero J, Martín-Audera P, Fueyo P, Lavín BA, Guerra AR, Muñoz P, Tello S, Berja A, Casanova C. Associations of serum sclerostin levels with body composition, pulmonary function, and exacerbations in COPD patients. Pulmonology 2022:S2531-0437(22)00131-3. [PMID: 35963832 DOI: 10.1016/j.pulmoe.2022.06.003] [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: 01/10/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND In COPD, the bronchial epithelium shows a pathologically activated Wnt pathway. Sclerostin (SOST) is a secreted glycoprotein that is associated with bone metabolism and blocks the Wnt pathway. We hypothesized that low sclerostin levels might be associated with lung function and COPD exacerbations in patients. METHODS We studied 139 outpatients with stable COPD and normal kidney function. We assessed the serum levels of SOST and bone metabolism parameters, body composition, clinical characteristics and lung function at baseline. We followed the patients prospectively for 12 months after enrolment. Moderate exacerbations and hospital admissions were recorded during follow-up. RESULTS The serum SOST levels were 23.98±7.6 pmol/l (men: 25.5±7.7 pmol/l, women: 20.3±5.9 pmol/l (p < 0.001)). SOST showed correlations with age (r = 0.36), FFMI (r = 0.38), FEV1 (r = 0.27), DLCO (r = 0.39), 6MWD (r = 0.19) and CAT (r = -0.24). In multivariate linear regression analysis, only age (beta=0.264) and FFMI (beta=1.241) remained significant. SOST showed a significant negative correlation with serum phosphorus (r = -0.29). Cox proportional risk analysis indicated that patients in the lower tertile of SOST levels were at higher risk of moderate COPD exacerbation (HR 2.015, CI95% 1.136-3.577, p = 0.017) and hospital admission due to COPD (HR 5.142, CI95% 1.380-19.158, p = 0.015) than the rest of the patients. CONCLUSIONS SOST levels are associated with body composition and lung function in patients with COPD. Furthermore, lower SOST levels predict a higher risk of exacerbations and hospitalization.
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Affiliation(s)
- C A Amado
- Department of Pulmonology, Hospital Universitario Marqués de Valdecilla. Santander, Spain; University of Cantabria. Santander, Spain; IDIVAL (Instituto de Investigación Biomédica de Cantabria). Santander, Spain.
| | - M García-Unzueta
- University of Cantabria. Santander, Spain; Department of Biochemistry, Hospital Universitario Marqués de Valdecilla. Santander, Spain
| | - J Agüero
- Department of Pulmonology, Hospital Universitario Marqués de Valdecilla. Santander, Spain
| | - P Martín-Audera
- Department of Biochemistry, Hospital Universitario Marqués de Valdecilla. Santander, Spain
| | - P Fueyo
- University of Cantabria. Santander, Spain
| | - B A Lavín
- Department of Biochemistry, Hospital Universitario Marqués de Valdecilla. Santander, Spain
| | - A R Guerra
- Department of Biochemistry, Hospital Universitario Marqués de Valdecilla. Santander, Spain
| | - P Muñoz
- Servicio Cántabro de Salud. Santander, Spain
| | - S Tello
- Department of Pulmonology, Hospital Universitario Marqués de Valdecilla. Santander, Spain
| | - A Berja
- Department of Biochemistry, Hospital Universitario Marqués de Valdecilla. Santander, Spain
| | - C Casanova
- Servicio de Neumología-Unidad de Investigación, Hospital Universitario La Candelaria, Universidad de La Laguna, Tenerife, Spain
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21
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Zhu M, Fan Z. The role of the Wnt signalling pathway in the energy metabolism of bone remodelling. Cell Prolif 2022; 55:e13309. [PMID: 35811348 DOI: 10.1111/cpr.13309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/07/2022] [Accepted: 06/24/2022] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVES Bone remodelling is necessary to repair old and impaired bone caused by aging and its effects. Injury in the process of bone remodelling generally leads to the development of various bone diseases. Energy metabolism plays crucial roles in bone cell formation and function, the disorder of which will disrupt the balance between bone formation and bone resorption. MATERIALS AND METHODS Here, we review the intrinsic interactions between bone remodelling and energy metabolism and the role of the Wnt signalling pathway. RESULTS We found a close interplay between metabolic pathways and bone homeostasis, demonstrating that bone plays an important role in the regulation of energy balance. We also discovered that Wnt signalling is associated with multiple biological processes regulating energy metabolism in bone cells. CONCLUSIONS Thus, targeted regulation of Wnt signalling and the recovery of the energy metabolism function of bone cells are key means for the treatment of metabolic bone diseases.
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Affiliation(s)
- Mengyuan Zhu
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Research Unit of Tooth Development and Regeneration, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Research Unit of Tooth Development and Regeneration, Chinese Academy of Medical Sciences, Beijing, China
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22
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Tominaga A, Wada K, Okazaki K, Nishi H, Terayama Y, Kato Y. Response to Letter. "Romosozumab and cardiovascular safety- should we learn lessons from Pioglitazone?". Osteoporos Int 2022; 33:1401-1402. [PMID: 35181822 DOI: 10.1007/s00198-022-06300-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 01/03/2022] [Indexed: 10/19/2022]
Affiliation(s)
- Ayako Tominaga
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho Shinjuku-ku, Tokyo, Japan
| | - Keiji Wada
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho Shinjuku-ku, Tokyo, Japan.
| | - Ken Okazaki
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho Shinjuku-ku, Tokyo, Japan
| | - Hideharu Nishi
- Hasuda Hospital, 1662-1 Negane Hasudashi, Saitama, Japan
| | | | - Yoshiharu Kato
- Kita Shinagawa 3rd Hospital, 3-3-7 Kitashinagawa Shinagawa-ku, Tokyo, Japan
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23
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Kroon T, Bhadouria N, Niziolek P, Edwards D, Choi R, Clinkenbeard EL, Robling A, Holguin N. Suppression of Sost/Sclerostin and Dickkopf-1 Augment Intervertebral Disc Structure in Mice. J Bone Miner Res 2022; 37:1156-1169. [PMID: 35278242 PMCID: PMC9320845 DOI: 10.1002/jbmr.4546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 03/02/2022] [Accepted: 03/10/2022] [Indexed: 11/06/2022]
Abstract
Intervertebral disc (IVD) degeneration is a leading cause of low back pain, characterized by accelerated extracellular matrix breakdown and IVD height loss, but there is no approved pharmacological therapeutic. Deletion of Wnt ligand competitor Lrp5 induces IVD degeneration, suggesting that Wnt signaling is essential for IVD homeostasis. Therefore, the IVD may respond to neutralization of Wnt ligand competitors sost(gene)/sclerostin(protein) and/or dickkopf-1 (dkk1). Anti-sclerostin antibody (scl-Ab) is an FDA-approved bone therapeutic that activates Wnt signaling. We aimed to (i) determine if pharmacological neutralization of sclerostin, dkk1, or their combination would stimulate Wnt signaling and augment IVD structure and (ii) determine the prolonged adaptation of the IVD to global, persistent deletion of sost. Nine-week-old C57Bl/6J female mice (n = 6-7/group) were subcutaneously injected 2×/week for 5.5 weeks with scl-Ab (25 mg/kg), dkk1-Ab (25 mg/kg), 3:1 scl-Ab/dkk1-Ab (18.75:6.25 mg/kg), or vehicle (veh). Separately, IVD of sost KO and wild-type (WT) mice (n = 8/group) were harvested at 16 weeks of age. First, compared with vehicle, injection of scl-Ab, dkk1-Ab, and 3:1 scl-Ab/dkk1-Ab similarly increased lumbar IVD height and β-catenin gene expression. Despite these similarities, only injection of scl-Ab alone strengthened IVD mechanical properties and decreased heat shock protein gene expressions. Genetically and compared with WT, sost KO enlarged IVD height, increased proteoglycan staining, and imbibed IVD hydration. Notably, persistent deletion of sost was compensated by upregulation of dkk1, which consequently reduced the cell nuclear fraction for Wnt signaling co-transcription factor β-catenin in the IVD. Lastly, RNA-sequencing pathway analysis confirmed the compensatory suppression of Wnt signaling and revealed a reduction of cellular stress-related pathways. Together, suppression of sost/sclerostin or dkk1 each augmented IVD structure by stimulating Wnt signaling, but scl-Ab outperformed dkk1-Ab in strengthening the IVD. Ultimately, postmenopausal women prescribed scl-Ab injections to prevent vertebral fracture may also benefit from a restoration of IVD height and health. © 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).
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Affiliation(s)
- Tori Kroon
- Department of Biomedical Engineering, IUPUI, Indianapolis, IN, USA
| | - Neharika Bhadouria
- Department of Mechanical Engineering, Purdue University, West Lafayette, IN, USA
| | - Paul Niziolek
- Radiology & Imaging Sciences, IUPUI, Indianapolis, IN, USA
| | - Daniel Edwards
- Indiana Center of Musculoskeletal Health, Indianapolis, IN, USA
| | - Roy Choi
- Department for Anatomy and Cell Biology, IUPUI, Indianapolis, IN, USA
| | | | - Alexander Robling
- Indiana Center of Musculoskeletal Health, Indianapolis, IN, USA.,Department for Anatomy and Cell Biology, IUPUI, Indianapolis, IN, USA
| | - Nilsson Holguin
- Indiana Center of Musculoskeletal Health, Indianapolis, IN, USA.,Department for Anatomy and Cell Biology, IUPUI, Indianapolis, IN, USA.,Department of Mechanical and Energy Engineering, IUPUI, Indianapolis, IN, USA
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24
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Miller A, Jeyapalina S, Agarwal J, Mansel M, Beck JP. A preliminary, observational study using whole-blood RNA sequencing reveals differential expression of inflammatory and bone markers post-implantation of percutaneous osseointegrated prostheses. PLoS One 2022; 17:e0268977. [PMID: 35617338 PMCID: PMC9135298 DOI: 10.1371/journal.pone.0268977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/11/2022] [Indexed: 11/20/2022] Open
Abstract
AIMS While the benefits of direct skeletal attachment of artificial limbs are well recognized, device failure due to infection and insufficient osseointegration remain obstacles to obtaining consistently successful outcomes. Currently, the potential for device failure is assessed by subjective pain, clinical function scores, radiographic evidence of bone atrophy, and the presence of radiolucent lines at the bone-implant interface, and subjective pain and function scores. Our hypothesis is that measurable biological indices might add another objective means to assess trends toward bone and stomal healing. This longitudinal cohort study was undertaken to identify potential serological biomarkers suggestive of bone remodeling and the presence of stomal tissue inflammation. METHODS Ten unilateral transfemoral amputee veterans, who were implanted with a percutaneous osseointegrated (OI) skeletal limb docking system, were recruited to participate in this IRB-approved study. Venous blood samples were obtained from before the Stage 1 Surgery up to 1 year following the Stage 2 Surgery. Whole-blood RNA was extracted, sequenced, mapped, and analyzed. Of the significant differentially expressed (DEGs) genes (p<0.05) identified, four genes of interest (IL12B, IL33, COL2A1, and SOST) were validated using qPCR. Enrichment analysis was performed to identify significant (p<0.01) Gene Ontology (GO) terms. RESULTS Most differentially expressed genes were only detected at PoS1 immediately after the first surgery. Of the significant genes identified, IL12B and IL33 were related to inflammation, and COL2A1 and SOST were associated with bone remodeling. These four genes were identified with greater than 20 log fold-change. CONCLUSION Whole-blood RNA-seq data from 10 patients who previously underwent percutaneous osseointegrated lower limb implantation revealed four genes of interest that are known to be involved in inflammation or bone remodeling. If verified in future studies, these genes may serve as markers for predicting optimal bone remodeling and stomal tissue healing following OI device implantation.
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Affiliation(s)
- Andrew Miller
- Research, George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, Utah, United States of America
- Division of Plastic and Reconstructive Surgery, Department of Surgery, School of Medicine, University of Utah, Salt Lake City, Utah, United States of America
- Department of Biomedical Engineering, University of Utah School of Engineering, Salt Lake City, Utah, United States of America
| | - Sujee Jeyapalina
- Research, George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, Utah, United States of America
- Division of Plastic and Reconstructive Surgery, Department of Surgery, School of Medicine, University of Utah, Salt Lake City, Utah, United States of America
| | - Jay Agarwal
- Research, George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, Utah, United States of America
- Division of Plastic and Reconstructive Surgery, Department of Surgery, School of Medicine, University of Utah, Salt Lake City, Utah, United States of America
| | - Mitchell Mansel
- Undergraduate Research Opportunities Program, University of Utah, Salt Lake City, Utah, United States of America
| | - James Peter Beck
- Research, George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, Utah, United States of America
- Department of Orthopaedics, University of Utah School of Medicine, Salt Lake City, Utah, United States of America
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25
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Aryana IGPS, Rini SS, Soejono CH. The Importance of on Sclerostin as Bone-Muscle Mediator Crosstalk. Ann Geriatr Med Res 2022; 26:72-82. [PMID: 35599457 PMCID: PMC9271392 DOI: 10.4235/agmr.22.0036] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 05/14/2022] [Indexed: 11/12/2022] Open
Abstract
Loss of bone and muscle mass is a frequent aging condition and has become a growing public health problem. The term “osteosarcopenia” denotes close links between bone and muscle. Mechanical exercise was once thought to be the only mechanism of crosstalk between muscle and bone. Sclerostin is an important player in the process of unloading-induced bone loss and plays an important role in mechanotransduction in the bone. Furthermore, bones and muscles are categorized as endocrine organs because they produce hormone-like substances, resulting in “bone-muscle crosstalk.” Sclerostin, an inhibitor of bone development, has recently been shown to play a role in myogenesis. This review discusses the importance of sclerostin in bone-muscle crosstalk.
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Affiliation(s)
- I Gusti Putu Suka Aryana
- Division of Geriatric Medicine, Department of Internal Medicine, Sanglah Hospital–Faculty of Medicine Udayana University, Bali, Indonesia
- Corresponding Author: I Gusti Putu Suka Aryana, MD, PhD Division of Geriatrics, Department of Internal Medicine, Sanglah Hospital–Faculty of Medicine Udayana University, Jl. Pulau Tarakan No.1, Denpasar 80114, Bali, Indonesia E-mail:
| | - Sandra Surya Rini
- Department of Internal Medicine, North Lombok Regional Hospital, West Nusa Tenggara, Indonesia
| | - Czeresna Heriawan Soejono
- Division of Geriatric Medicine, Department of Internal Medicine, Cipto Mangunkusumo Hospital–Faculty of Medicine University of Indonesia, Jakarta, Indonesia
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26
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Wei T, Shan Z, Wen X, Zhao N, Shen G. Dynamic alternations of RANKL/OPG ratio expressed by cementocytes in response to orthodontic‑induced external apical root resorption in a rat model. Mol Med Rep 2022; 26:228. [PMID: 35593309 PMCID: PMC9178691 DOI: 10.3892/mmr.2022.12744] [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: 02/12/2022] [Accepted: 05/05/2022] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to investigate the alterations in the formation of cementocytes in response to orthodontic forces and to evaluate the contribution of these cells in the biological changes of tooth movement and associated root resorption. A total of 90 Sprague Dawley rats were randomly assigned to the control, high force, and low force groups. Intrusion forces of 10 and 50 g were applied on the rat molar to induce tooth intrusion. The tooth movement was observed from 0 to 14 days by micro-computed tomography, bone histometric analysis, tartrate-resistant acid phosphatase staining, as well as reverse transcription-quantitative PCR and immunofluorescence staining assays. The results suggested that under low force conditions, osteoclasts were distributed at a higher frequency on the bone side than on the root side. Under high force conditions, both sides suffered osteoclast infiltration. In the low force group, the cementocytes exhibited downregulated sclerostin (SOST) and osteoprotegerin (OPG) mRNA levels and a lower receptor activator of nuclear factor-κB ligand (RANKL)/OPG ratio over a certain period of time. The expression levels of these genes were lower compared with those of the osteocytes at each time-point. In the high force group, both cementocytes and osteocytes upregulated the SOST and RANKL/OPG ratio on days 7 and 14, while the cementocytes expressed higher levels of SOST mRNA than those noted in the osteocytes. These data suggested that cementocytes responded to the orthodontic force via modulation of the RANKL/OPG ratio and SOST expression. The biological response of cementocytes contributed to the mechanotransduction and homoeostasis of the roots under compression. Excessive forces may act as a negative factor of this regulatory role. These results expand our knowledge on the function of cementocytes.
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Affiliation(s)
- Tingting Wei
- Department of Preventive Dentistry, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Zhiyi Shan
- Department of Orthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, P.R. China
| | - Xin Wen
- Department of Orthodontics, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Ning Zhao
- Department of Orthodontics, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Gang Shen
- Department of Orthodontics, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
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27
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Shui X, Dong R, Wu Z, Chen Z, Wen Z, Tang L, Xie X, Chen L. Association of serum sclerostin and osteoprotegerin levels with the presence, severity and prognosis in patients with acute myocardial infarction. BMC Cardiovasc Disord 2022; 22:213. [PMID: 35546224 PMCID: PMC9092859 DOI: 10.1186/s12872-022-02654-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 05/03/2022] [Indexed: 11/18/2022] Open
Abstract
Background Bone-related proteins (such as sclerostin and osteoprotegerin [OPG]) are involved in the development of atherosclerosis. However, the relationship between bone-related proteins and acute myocardial infarction (AMI) has not been extensively evaluated. The purpose of this study was to assess the association of serum sclerostin and OPG with the presence, severity and prognosis in patients with AMI. Methods This study prospectively enrolled 152 patients attacked by acute chest pain. Serum sclerostin and OPG were detected within the first 24 h after AMI diagnosis by ELISA kits. The AMI predictive efficacy of sclerostin and OPG were analyzed by receiver operating characteristics (ROC) curve. Univariable and multivariable linear regression analyses were performed to determine the association between bone-related proteins and scores indicating the severity of coronary artery occlusion. Moreover, prognostic values were assessed by Kaplan–Meier curves and Cox regression analysis. Results There were 92 patients in AMI group, 60 in non-AMI group. Serum levels of sclerostin and OPG were significantly higher in AMI group than in non-AMI group (all p < 0.001), which showed predictive value for the presence of AMI (all p < 0.001). The area under the ROC curve values of sclerostin and OPG were 0.744 and 0.897, respectively. A multivariable linear regression analysis demonstrated that Ln-transformed sclerostin (β = 0.288, p = 0.009) and Ln-transformed OPG (Ln-OPG: β = 0.295, p = 0.019) levels were associated with GENISINI score, independently of conventional clinical parameters. In addition, Ln-OPG levels were still positively associated with GRACE score after adjustments (β = 0.320, p = 0.001). During a 1-year follow-up, patients above the median of sclerostin levels had higher incidence of major adverse cardiac events (MACE) than those below the median (p = 0.028). It was also observed that the MACE rates were higher in patients above the median of OPG levels, though no statistic importance (p = 0.060). After adjusting conventional risk factors by multivariate Cox regression, Ln-OPG was associated with incident MACE (hazard ratio = 2.188 [95% confidence intervals 1.102–4.344], p = 0.025). Conclusions Bone-related proteins could exert a potential role in early risk stratification and prognosis assessment in patients with AMI.
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Affiliation(s)
- Xing Shui
- Department of Cardiovascular Medicine, The Third Affiliated Hospital, SunYat-Sen University, No. 600, Tianhe Road, Guangzhou, 510630, China
| | - Ruimin Dong
- Department of Cardiovascular Medicine, The Third Affiliated Hospital, SunYat-Sen University, No. 600, Tianhe Road, Guangzhou, 510630, China
| | - Zhen Wu
- Department of Cardiac Care Unit, The Third Affiliated Hospital, SunYat-Sen University, Guangzhou, China
| | - Zefeng Chen
- Department of Cardiovascular Medicine, The Third Affiliated Hospital, SunYat-Sen University, No. 600, Tianhe Road, Guangzhou, 510630, China
| | - Zheqi Wen
- Department of Cardiac Care Unit, The Third Affiliated Hospital, SunYat-Sen University, Guangzhou, China
| | - Leile Tang
- Department of Cardiovascular Medicine, The Third Affiliated Hospital, SunYat-Sen University, No. 600, Tianhe Road, Guangzhou, 510630, China
| | - Xujing Xie
- Department of Cardiovascular Medicine, The Third Affiliated Hospital, SunYat-Sen University, No. 600, Tianhe Road, Guangzhou, 510630, China.
| | - Lin Chen
- Department of Cardiovascular Medicine, The Third Affiliated Hospital, SunYat-Sen University, No. 600, Tianhe Road, Guangzhou, 510630, China.
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Aw Yong KM, Horst E, Neale D, Royzenblat S, Lahann J, Greineder C, Weivoda M, Mehta G, Keller ET. A Bioreactor for 3D In Vitro Modeling of the Mechanical Stimulation of Osteocytes. Front Bioeng Biotechnol 2022; 10:797542. [PMID: 35402411 PMCID: PMC8990130 DOI: 10.3389/fbioe.2022.797542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 03/04/2022] [Indexed: 11/13/2022] Open
Abstract
The bone is a mechanosensitive organ that is also a common metastatic site for prostate cancer. However, the mechanism by which the tumor interacts with the bone microenvironment to further promote disease progression remains to be fully understood. This is largely due to a lack of physiological yet user-friendly models that limit our ability to perform in-depth mechanistic studies. Here, we report a tunable bioreactor which facilitates the 3D culture of the osteocyte cell line, MLO-Y4, in a hydroxyapatite/tricalcium phosphate (HA/TCP) scaffold under constant fluidic shear stress and tunable hydrostatic pressure within physiological parameters. Increasing hydrostatic pressure was sufficient to induce a change in the expression of several bone remodeling genes such as Dmp1, Rankl, and Runx2. Furthermore, increased hydrostatic pressure induced the osteocytes to promote the differentiation of the murine macrophage cell line RAW264.7 toward osteoclast-like cells. These results demonstrate that the bioreactor recapitulates the mechanotransduction response of osteocytes to pressure including the measurement of their functional ability in a 3D environment. In conclusion, the bioreactor would be useful for exploring the mechanisms of osteocytes in bone health and disease.
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Affiliation(s)
- Koh Meng Aw Yong
- Department of Urology, Michigan Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Eric Horst
- Department of Material Science and Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Dylan Neale
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Sonya Royzenblat
- Biosciences Institute, University of Michigan, Ann Arbor, MI, United States
| | - Joerg Lahann
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, United States
- Biosciences Institute, University of Michigan, Ann Arbor, MI, United States
| | - Colin Greineder
- Department of Emergency Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Megan Weivoda
- Biosciences Institute, University of Michigan, Ann Arbor, MI, United States
- Department of Periodontics and Oral Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Geeta Mehta
- Department of Material Science and Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Evan T. Keller
- Department of Urology, Michigan Medicine, University of Michigan, Ann Arbor, MI, United States
- Biosciences Institute, University of Michigan, Ann Arbor, MI, United States
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29
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Wang ZX, Luo ZW, Li FXZ, Cao J, Rao SS, Liu YW, Wang YY, Zhu GQ, Gong JS, Zou JT, Wang Q, Tan YJ, Zhang Y, Hu Y, Li YY, Yin H, Wang XK, He ZH, Ren L, Liu ZZ, Hu XK, Yuan LQ, Xu R, Chen CY, Xie H. Aged bone matrix-derived extracellular vesicles as a messenger for calcification paradox. Nat Commun 2022; 13:1453. [PMID: 35304471 PMCID: PMC8933454 DOI: 10.1038/s41467-022-29191-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/25/2022] [Indexed: 02/06/2023] Open
Abstract
Adipocyte differentiation of bone marrow mesenchymal stem/stromal cells (BMSCs) instead of osteoblast formation contributes to age- and menopause-related marrow adiposity and osteoporosis. Vascular calcification often occurs with osteoporosis, a contradictory association called “calcification paradox”. Here we show that extracellular vesicles derived from aged bone matrix (AB-EVs) during bone resorption favor BMSC adipogenesis rather than osteogenesis and augment calcification of vascular smooth muscle cells. Intravenous or intramedullary injection of AB-EVs promotes bone-fat imbalance and exacerbates Vitamin D3 (VD3)-induced vascular calcification in young or old mice. Alendronate (ALE), a bone resorption inhibitor, down-regulates AB-EVs release and attenuates aging- and ovariectomy-induced bone-fat imbalance. In the VD3-treated aged mice, ALE suppresses the ovariectomy-induced aggravation of vascular calcification. MiR-483-5p and miR-2861 are enriched in AB-EVs and essential for the AB-EVs-induced bone-fat imbalance and exacerbation of vascular calcification. Our study uncovers the role of AB-EVs as a messenger for calcification paradox by transferring miR-483-5p and miR-2861. This study uncovers the role of extracellular vesicles from bone matrix as a messenger in the development of osteoporosis and vascular calcification (calcification paradox) during skeletal aging and menopause by transferring miR-483-5p and miR-2861.
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Affiliation(s)
- Zhen-Xing Wang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhong-Wei Luo
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fu-Xing-Zi Li
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jia Cao
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shan-Shan Rao
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Yi-Wei Liu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yi-Yi Wang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guo-Qiang Zhu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiang-Shan Gong
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jing-Tao Zou
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qiang Wang
- Department of Laboratory Medicine, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yi-Juan Tan
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yan Zhang
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yin Hu
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - You-You Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hao Yin
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiao-Kai Wang
- Department of Emergency Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ze-Hui He
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lu Ren
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zheng-Zhao Liu
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Organ Injury, Aging and Regenerative Medicine, Changsha, Hunan, China.,Hunan Key Laboratory of Bone Joint Degeneration and Injury, Changsha, Hunan, China
| | - Xiong-Ke Hu
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ling-Qing Yuan
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ran Xu
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chun-Yuan Chen
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China. .,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Hui Xie
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China. .,Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China. .,Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China. .,Hunan Key Laboratory of Organ Injury, Aging and Regenerative Medicine, Changsha, Hunan, China. .,Hunan Key Laboratory of Bone Joint Degeneration and Injury, Changsha, Hunan, China.
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Liu Y, Ruan X, Li J, Wang B, Chen J, Wang X, Wang P, Tu X. The Osteocyte Stimulated by Wnt Agonist SKL2001 Is a Safe Osteogenic Niche Improving Bioactivities in a Polycaprolactone and Cell Integrated 3D Module. Cells 2022; 11:cells11050831. [PMID: 35269452 PMCID: PMC8909416 DOI: 10.3390/cells11050831] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/19/2022] [Accepted: 01/25/2022] [Indexed: 02/05/2023] Open
Abstract
Finding and constructing an osteogenic microenvironment similar to natural bone tissue has always been a frontier topic in orthopedics. We found that osteocytes are targeting cells controlling bone anabolism produced by PTH (JBMR 2017, PMID: 27704638), and osteocytes with activated Wnt signaling orchestrate bone formation and resorption (PNAS 2015, PMID: 25605937). However, methods for taking advantage of the leading role of osteocytes in bone regeneration remain unexplored. Herein, we found that the osteocytes with SKL2001-activated Wnt signaling could be an osteogenic microenvironment (SOOME) which upregulates the expression of bone transcription factor Runx2 and Bglap and promotes the differentiation of bone marrow stromal cell ST2 into osteoblasts. Interestingly, 60 μM SKL2001 treatment of osteocytic MLO-Y4 for 24 h maintained Wnt signaling activation for three days after removal, which was sufficient to induce osteoblast differentiation. Triptonide, a Wnt inhibitor, could eliminate this differentiation. Moreover, on day 5, the Wnt signaling naturally decreased to the level of the control group, indicating that this method of Wnt-signaling induction is safe to use. We quickly verified in vivo function of SOOME to a good proximation in 3D bioprinted modules composed of reciprocally printed polycaprolactone bundles (for support) and cell bundles (for bioactivity). In the cell bundles, SOOME stably supported the growth and development of ST2 cells, the 7-day survival rate was as high as 91.6%, and proliferation ability increased linearly. Similarly, SOOME greatly promoted ST2 differentiation and mineralization for 28 days. In addition, SOOME upregulated the expression of angiopoietin 1, promoted endothelial cell migration and angiogenesis, and increased node number and total length of tubes and branches. Finally, we found that the function of SOOME could be realized through the paracrine pathway. This study reveals that osteocytes with Wnt signaling activated by SKL2001 are a safe osteogenic microenvironment. Both SOOME itself and its cell-free culture supernatant can improve bioactivity for osteoblast differentiation, with composite scaffolds especially bearing application value.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiaolin Tu
- Correspondence: ; Tel.: +86-185-2382-0685
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Nagata Y, Imanishi Y, Tateishi T, Miyaoka D, Kurajoh M, Arnold A, Emoto M. Parathyroid Hormone Regulates Circulating Levels of Sclerostin and FGF23 in a Primary Hyperparathyroidism Model. J Endocr Soc 2022; 6:bvac027. [PMID: 35284773 PMCID: PMC8907412 DOI: 10.1210/jendso/bvac027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Indexed: 11/21/2022] Open
Abstract
Parathyroid hormone (PTH) increases fibroblast growth factor 23 (FGF23), mediated both by protein kinase A (PKA) and Wnt signaling, and decreases expression of sclerostin, a Wnt antagonist derived from osteocytes. Patients with primary hyperparathyroidism (PHPT) have lower serum sclerostin levels than healthy controls, consistent with the idea of SOST downregulation by PTH. Nevertheless, the relationship between FGF23 and sclerostin in PHPT is still unclear. We examined this issue in a mouse model of PHPT. PHPT mice had increased FGF23 and decreased sclerostin expression in calvaria and in their serum concentrations compared with wild-type (WT) mice. In UMR106 osteoblasts, PTH increased Fgf23 expression and decreased Sost expression, as well as forskolin, a PKA agonist, whereas inhibition of PKA reversed the changes in Fgf23 and Sost expression, stimulated by PTH. Sclerostin treatment had no effect on Fgf23 expression, but when it was added together with PTH, it statistically significantly abrogated the increase in Fgf23 expression. By contrast, there was no statistically significant correlation between serum FGF23 and sclerostin, whereas PTH was positively and negatively correlated with serum FGF23 and sclerostin, respectively. These results indicate that the high level of PTH in PHPT mice leads to increased FGF23 and decreased sclerostin expression in serum and calvaria. A decrease of sclerostin may further augment FGF23 in vitro; however, there was no statistically significant association between circulating FGF23 and sclerostin. It is suggested that the pathogenesis of increased FGF23 expression in PHPT mice may be modified by not only sclerostin, but also other regulatory factors modulated by PTH.
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Affiliation(s)
- Yuki Nagata
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
- Department of Vascular Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
- Vascular Science Center for Translational Research, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Yasuo Imanishi
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Tomomi Tateishi
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Daichi Miyaoka
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Masafumi Kurajoh
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Andrew Arnold
- Division of Endocrinology and Metabolism, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Masanori Emoto
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
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Vasiliadis ES, Evangelopoulos DS, Kaspiris A, Benetos IS, Vlachos C, Pneumaticos SG. The Role of Sclerostin in Bone Diseases. J Clin Med 2022; 11:jcm11030806. [PMID: 35160258 PMCID: PMC8836457 DOI: 10.3390/jcm11030806] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/27/2022] [Accepted: 01/31/2022] [Indexed: 12/26/2022] Open
Abstract
Sclerostin has been identified as an important regulator of bone homeostasis through inhibition of the canonical Wnt-signaling pathway, and it is involved in the pathogenesis of many different skeletal diseases. Many studies have been published in the last few years regarding sclerostin’s origin, regulation, and mechanism of action. The ongoing research emphasizes the potential therapeutic implications of sclerostin in many pathological conditions with or without skeletal involvement. Antisclerostin antibodies have recently been approved for the treatment of osteoporosis, and several animal studies and clinical trials are currently under way to evaluate the effectiveness of antisclerostin antibodies in the treatment of other than osteoporosis skeletal disorders and cancer with promising results. Understanding the exact role of sclerostin may lead to new therapeutic approaches for the treatment of skeletal disorders.
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Affiliation(s)
- Elias S. Vasiliadis
- 3rd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, KAT Hospital, 16541 Athens, Greece; (D.-S.E.); (I.S.B.); (C.V.); (S.G.P.)
- Correspondence: ; Tel.: +30-21-3208-6000
| | - Dimitrios-Stergios Evangelopoulos
- 3rd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, KAT Hospital, 16541 Athens, Greece; (D.-S.E.); (I.S.B.); (C.V.); (S.G.P.)
| | - Angelos Kaspiris
- Laboratory of Molecular Pharmacology, Division for Orthopaedic Research, School of Health Sciences, University of Patras, 26504 Rion, Greece;
| | - Ioannis S. Benetos
- 3rd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, KAT Hospital, 16541 Athens, Greece; (D.-S.E.); (I.S.B.); (C.V.); (S.G.P.)
| | - Christos Vlachos
- 3rd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, KAT Hospital, 16541 Athens, Greece; (D.-S.E.); (I.S.B.); (C.V.); (S.G.P.)
| | - Spyros G. Pneumaticos
- 3rd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, KAT Hospital, 16541 Athens, Greece; (D.-S.E.); (I.S.B.); (C.V.); (S.G.P.)
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Zhao X, Ma L, Guo H, Wang J, Zhang S, Yang X, Yang L, Jin Q. Osteoclasts secrete leukemia inhibitory factor to promote abnormal bone remodeling of subchondral bone in osteoarthritis. BMC Musculoskelet Disord 2022; 23:87. [PMID: 35078447 PMCID: PMC8790929 DOI: 10.1186/s12891-021-04886-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 11/17/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a common chronic degenerative joint disease. At present, there is no effective treatment to check the progression of osteoarthritis. Osteochondral units are considered to be one of the most important structures affecting the occurrence and development of osteoarthritis. Osteoclasts mediate an increase in abnormal bone remodeling in subchondral bone in the early stage of osteoarthritis. Here, alendronate (ALN) that inhibit osteoclasts was used to study the regulatory effect of osteoclast-derived leukemia inhibitory factor (LIF) on early abnormal bone remodeling. METHODS This study involved 10-week-old wild-type female C57BL/6 mice and female SOST knockout (KO) mice that were divided into the sham, vehicle, ALN, and SOST KO groups. RESULTS The expression of LIF was found to decrease by inhibiting osteoclasts, and the histological OA score suggested that the degeneration of articular cartilage was attenuated. Additionally, micro-CT showed that osteoclasts inhibited in the early stage of OA could maintain the microstructure of the subchondral bone. The parameters of bone volume fraction (BV/TV), subchondral bone plate thickness (SBP.Th), and trabecular separation (Tb.Sp) of the treated group were better than those of the vehicle group. CONCLUSIONS These results suggested that downregulating the expression of sclerostin in osteocytes by secreting LIF from osteoclasts, activate the Wnt/β-catenin signaling pathway, and promote abnormal bone remodeling in OA. Therefore, clastokine LIF might be a potential molecular target to promote abnormal bone remodeling in early OA.
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Affiliation(s)
- Xin Zhao
- Department of Orthopedics, General Hospital of Ningxia Medical University, 804 Shengli Street, Yinchuan, Ningxia, China.,School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Long Ma
- Department of Orthopedics, General Hospital of Ningxia Medical University, 804 Shengli Street, Yinchuan, Ningxia, China
| | - Haohui Guo
- Department of Orthopedics, General Hospital of Ningxia Medical University, 804 Shengli Street, Yinchuan, Ningxia, China
| | - Jian Wang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Shuai Zhang
- Department of Orthopedics, General Hospital of Ningxia Medical University, 804 Shengli Street, Yinchuan, Ningxia, China
| | - Xiaochun Yang
- Department of Orthopedics, General Hospital of Ningxia Medical University, 804 Shengli Street, Yinchuan, Ningxia, China
| | - Lvlin Yang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Qunhua Jin
- Department of Orthopedics, General Hospital of Ningxia Medical University, 804 Shengli Street, Yinchuan, Ningxia, China.
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Martínez-Gil N, Ugartondo N, Grinberg D, Balcells S. Wnt Pathway Extracellular Components and Their Essential Roles in Bone Homeostasis. Genes (Basel) 2022; 13:genes13010138. [PMID: 35052478 PMCID: PMC8775112 DOI: 10.3390/genes13010138] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 12/11/2022] Open
Abstract
The Wnt pathway is involved in several processes essential for bone development and homeostasis. For proper functioning, the Wnt pathway is tightly regulated by numerous extracellular elements that act by both activating and inhibiting the pathway at different moments. This review aims to describe, summarize and update the findings regarding the extracellular modulators of the Wnt pathway, including co-receptors, ligands and inhibitors, in relation to bone homeostasis, with an emphasis on the animal models generated, the diseases associated with each gene and the bone processes in which each member is involved. The precise knowledge of all these elements will help us to identify possible targets that can be used as a therapeutic target for the treatment of bone diseases such as osteoporosis.
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Oniszczuk A, Kaczmarek A, Kaczmarek M, Ciałowicz M, Arslan E, Silva AF, Clemente FM, Murawska-Ciałowicz E. Sclerostin as a biomarker of physical exercise in osteoporosis: A narrative review. Front Endocrinol (Lausanne) 2022; 13:954895. [PMID: 36545331 PMCID: PMC9760825 DOI: 10.3389/fendo.2022.954895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/14/2022] [Indexed: 12/07/2022] Open
Abstract
Osteoporosis, a disease of low bone mass, is characterized by reduced bone mineral density (BMD) through abnormalities in the microarchitecture of bone tissue. It affects both the social and economic areas, therefore it has been considered a lifestyle disease for many years. Bone tissue is a dynamic structure exhibiting sensitivity to various stimuli, including mechanical ones, which are a regulator of tissue sclerostin levels. Sclerostin is a protein involved in bone remodeling, showing an anti-anabolic effect on bone density. Moderate to vigorous physical activity inhibits secretion of this protein and promotes increased bone mineral density. Appropriate exercise has been shown to have an osteogenic effect. The effectiveness of osteogenic training depends on the type, intensity, regularity and frequency of exercise and the number of body parts involved. The greatest osteogenic activity is demonstrated by exercises affecting bone with high ground reaction forces (GRF) and high forces exerted by contracting muscles (JFR). The purpose of this study was to review the literature for the effects of various forms of exercise on sclerostin secretion.
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Affiliation(s)
- Anna Oniszczuk
- Department of Physiology and Biochemistry, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
| | - Agnieszka Kaczmarek
- Department of Physiology and Biochemistry, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
- *Correspondence: Agnieszka Kaczmarek, ; Eugenia Murawska-Ciałowicz,
| | - Mateusz Kaczmarek
- Gynecology and Obstetrics Department, St. Hedwig’s of Silesia Hospital, Trzebnica, Poland
| | - Maria Ciałowicz
- Physiotherapy Faculty, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
| | - Ersan Arslan
- Faculty of Sport Science, Gaziosmanpaşa University, Tokat, Turkey
| | - Ana Filipa Silva
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, Viana do Castelo, Portugal
- Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), Melgaço, Portugal
- The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), Vila Real, Portugal
| | - Filipe Manuel Clemente
- Faculty of Sport Science, Gaziosmanpaşa University, Tokat, Turkey
- Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), Melgaço, Portugal
| | - Eugenia Murawska-Ciałowicz
- Department of Physiology and Biochemistry, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
- *Correspondence: Agnieszka Kaczmarek, ; Eugenia Murawska-Ciałowicz,
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Kuroda T, Shiraki M, Nakamura T, Suzuki H, Hiraishi K, Sugimoto T, Tanaka S. Relationship Between Changes in Serum Levels of Intact Parathyroid Hormone and Sclerostin After a Single Dose of Zoledronic Acid: Results of a Phase 1 Pharmacokinetic Study. Calcif Tissue Int 2022; 110:87-92. [PMID: 34427705 PMCID: PMC8732852 DOI: 10.1007/s00223-021-00900-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/30/2021] [Indexed: 11/04/2022]
Abstract
Although changes in serum sclerostin levels at 12 months after infusion of zoledronic acid have been reported, the changes in sclerostin levels at earlier time points are poorly understood. We reanalyzed the study data of a previous phase 1 pharmacokinetic study and investigated the correlation between changes in sclerostin levels and relevant factors in calcium metabolism. A total of 24 Japanese female subjects with primary postmenopausal osteoporosis were administered a single 4- or 5-mg dose of zoledronic acid. Serum and urine samples were collected on days 15, 29, 90, 180, and 365 after administration. Serum levels of calcium, phosphate, intact parathyroid hormone (iPTH), and sclerostin were measured. Levels of serum sclerostin were unchanged from baseline on days 15 and 29, but increased significantly on day 90, subsequently decreased significantly on day 180, and returned to baseline levels on day 365. A significant negative correlation was observed between changes in iPTH levels at early time points and sclerostin levels at later time points. This suggests that sclerostin was negatively regulated by iPTH, and the decrease in sclerostin may indicate the start of bone formation during later time points after zoledronic acid injection.
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Affiliation(s)
- Tatsuhiko Kuroda
- Healthcare R&D Center, Asahi Kasei Corporation, 1-1-2 Yurakucho, Chiyoda-ku, Tokyo, 100-0006, Japan
| | - Masataka Shiraki
- Research Institute and Practice for Involutional Diseases, 1610-1 Meisei, Misato, Azumino, Nagano, 399-8101, Japan
| | - Toshitaka Nakamura
- Touto Sangenjaya Rehabilitation Hospital, 1-24-3 Sangenjaya, Setagaya-ku, Tokyo, 154-0024, Japan
| | - Hiroaki Suzuki
- Medical Affairs Department, Asahi Kasei Pharma Corporation, 1-1-2 Yurakucho, Chiyoda-ku, Tokyo, 100-0006, Japan
| | - Kazuki Hiraishi
- Medical Affairs Department, Asahi Kasei Pharma Corporation, 1-1-2 Yurakucho, Chiyoda-ku, Tokyo, 100-0006, Japan
| | - Toshitsugu Sugimoto
- Internal Medicine 1, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo, Shimane, 693-8501, Japan
| | - Satoshi Tanaka
- Development Planning, Clinical Development Center, Asahi Kasei Pharma Corporation, 1-1-2 Yurakucho, Chiyoda-ku, Tokyo, 100-0006, Japan.
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Hyperbaric Oxygen Therapy Does Not Have a Negative Impact on Bone Signaling Pathways in Humans. Healthcare (Basel) 2021; 9:healthcare9121714. [PMID: 34946440 PMCID: PMC8701274 DOI: 10.3390/healthcare9121714] [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: 10/19/2021] [Revised: 12/06/2021] [Accepted: 12/09/2021] [Indexed: 12/22/2022] Open
Abstract
Introduction: Oxygen is emerging as an important factor in the local regulation of bone remodeling. Some preclinical data suggest that hyperoxia may have deleterious effects on bone cells. However, its clinical relevance is unclear. Hence, we studied the effect of hyperbaric oxygen therapy (HBOT) on serum biomarkers reflecting the status of the Wnt and receptor activator of NF-κB ligand (RANKL) pathways, two core pathways for bone homeostasis. Materials and methods: This was a prospective study of 20 patients undergoing HBOT (mean age 58 yrs., range 35–82 yrs.) because of complications of radiotherapy or chronic anal fissure. Patients were subjected to HBOT (100% oxygen; 2.4 atmospheres absolute for 90 min). The average number of HBOT sessions was 20 ± 5 (range 8–31). Serum hypoxia-inducible factor 1-α (HIF1-α), osteoprotegerin (OPG), RANKL, and the Wnt inhibitors sclerostin and dickkopf-1 (DKK1) were measured at baseline and after HBOT by using specific immunoassays. Results: HIF-1α in eight patients with measurable serum levels increased from 0.084 (0.098) ng/mL at baseline to 0.146 (0.130) ng/mL after HBOT (p = 0.028). However, HBOT did not induce any significant changes in the serum levels of OPG, RANKL, sclerostin or DKK1. This was independent of the patients’ diagnosis, either neoplasia or benign. Conclusion: Despite the potential concerns about hyperoxia, we found no evidence that HBOT has any detrimental effect on bone homeostasis.
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Vasiliadis ES, Evangelopoulos DS, Kaspiris A, Vlachos C, Pneumaticos SG. Sclerostin and Its Involvement in the Pathogenesis of Idiopathic Scoliosis. J Clin Med 2021; 10:jcm10225286. [PMID: 34830568 PMCID: PMC8618875 DOI: 10.3390/jcm10225286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/07/2021] [Accepted: 11/12/2021] [Indexed: 12/28/2022] Open
Abstract
Idiopathic scoliosis is a disorder of unknown etiology. Bone biopsies from idiopathic scoliosis patients revealed changes at cellular and molecular level. Osteocytic sclerostin is downregulated, and serum level of sclerostin is decreased. Osteocytes in idiopathic scoliosis appear to be less active with abnormal canaliculi network. Differentiation of osteoblasts to osteocytes is decelerated, while Wnt/β-catenin signaling pathway is overactivated and affects normal bone mineralization that leads to inferior mechanical properties of the bone, which becomes susceptible to asymmetrical forces and causes deformity of the spinal column. Targeting bone metabolism during growth by stimulating sclerostin secretion from osteocytes and restoring normal function of Wnt/β-catenin signaling pathway could, in theory, increase bone strength and prevent deterioration of the scoliotic deformity.
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Affiliation(s)
- Elias S. Vasiliadis
- 3rd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, KAT Hospital, 16541 Athens, Greece; (D.S.E.); (C.V.); (S.G.P.)
- Correspondence: ; Tel.: +30-2132-086-000
| | - Dimitrios Stergios Evangelopoulos
- 3rd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, KAT Hospital, 16541 Athens, Greece; (D.S.E.); (C.V.); (S.G.P.)
| | - Angelos Kaspiris
- Laboratory of Molecular Pharmacology, Division for Orthopaedic Research, School of Health Sciences, University of Patras, 26504 Rion, Greece;
| | - Christos Vlachos
- 3rd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, KAT Hospital, 16541 Athens, Greece; (D.S.E.); (C.V.); (S.G.P.)
| | - Spyros G. Pneumaticos
- 3rd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, KAT Hospital, 16541 Athens, Greece; (D.S.E.); (C.V.); (S.G.P.)
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Zhao Y, Suo Y, Yang Z, Hao Y, Li W, Su Y, Shi Y, Gao Y, Song L, Yin X, Shi H. Inspiration for the prevention and treatment of neuropsychiatric disorders: New insight from the bone-brain-axis. Brain Res Bull 2021; 177:263-272. [PMID: 34678443 DOI: 10.1016/j.brainresbull.2021.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 10/09/2021] [Accepted: 10/15/2021] [Indexed: 11/30/2022]
Abstract
Bone is the main supporting structure of the body and the main organ involved in body movement and calcium and phosphorus metabolism. Recent studies have shown that bone is also a potential new endocrine organ that participates in the physiological and pathophysiological processes of the cardiovascular, digestive, and endocrine systems through various bioactive cytokines secreted by bone cells and bone marrow. Bone-derived active cytokines can also directly act on the central nervous system and regulate brain function and individual behavior. The bidirectional regulation of the bone-brain axis has gradually attracted attention in the field of neuroscience. This paper reviews the regulatory effects of bone-derived active cytokines and bone-derived cells on individual brain function and brain diseases, as well as the occurrence and development of related neuropsychiatric diseases. The central regulatory mechanism function is briefly introduced, which will broaden the scope for mechanistic research and help establish prevention and treatment strategies for neuropsychiatric diseases based on the bone-brain axis.
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Affiliation(s)
- Ye Zhao
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Yining Suo
- Child Health Department, Hebei Children's Hospital, Shijiazhuang 050031, China
| | - Zhenbang Yang
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Ying Hao
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Wenshuya Li
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Yujiao Su
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Yun Shi
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Yuan Gao
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Li Song
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Xi Yin
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Department of Functional Region of Diagnosis, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China.
| | - Haishui Shi
- Neuroscience Research Center, Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang 050017, China.
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Kim SP, Da H, Wang L, Taketo MM, Wan M, Riddle RC. Bone-derived sclerostin and Wnt/β-catenin signaling regulate PDGFRα + adipoprogenitor cell differentiation. FASEB J 2021; 35:e21957. [PMID: 34606641 PMCID: PMC8496915 DOI: 10.1096/fj.202100691r] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 12/13/2022]
Abstract
The Wnt signaling antagonist, sclerostin, is a potent suppressor of bone acquisition that also mediates endocrine communication between bone and adipose. As a result, Sost-/- mice exhibit dramatic increases in bone formation but marked decreases in visceral and subcutaneous adipose that are secondary to alterations in lipid synthesis and utilization. While interrogating the mechanism by which sclerostin influences adipocyte metabolism, we observed paradoxical increases in the adipogenic potential and numbers of CD45- :Sca1+ :PDGFRα+ adipoprogenitors in the stromal vascular compartment of fat pads isolated from male Sost-/- mice. Lineage tracing studies indicated that sclerostin deficiency blocks the differentiation of PDGFRα+ adipoprogenitors to mature adipocytes in association with increased Wnt/β-catenin signaling. Importantly, osteoblast/osteocyte-specific Sost gene deletion mirrors the accumulation of PDGFRα+ adipoprogenitors, reduction in fat mass, and improved glucose metabolism evident in Sost-/- mice. These data indicate that bone-derived sclerostin regulates multiple facets of adipocyte physiology ranging from progenitor cell commitment to anabolic metabolism.
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Affiliation(s)
- Soohyun P Kim
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Hao Da
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Lei Wang
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Makoto M Taketo
- Division of Experimental Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mei Wan
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ryan C Riddle
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Research and Development Service, Baltimore Veterans Administration Medical Center, Baltimore, Maryland, USA
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Yamazaki M, Kawai M, Kinoshita S, Tachikawa K, Nakanishi T, Ozono K, Michigami T. Clonal osteoblastic cell lines with CRISPR/Cas9-mediated ablation of Pit1 or Pit2 show enhanced mineralization despite reduced osteogenic gene expression. Bone 2021; 151:116036. [PMID: 34118444 DOI: 10.1016/j.bone.2021.116036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 12/12/2022]
Abstract
Multiple actions of extracellular Pi on the skeletal cells are likely to be partly mediated by type III sodium/phosphate (Na+/Pi) cotransporters Pit1 and Pit2, although the details are not fully understood. In the current study, to determine the roles of Pit1 and Pit2 in osteoblasts, we generated Pit1-knockout (KO) and Pit2-KO osteoblastic cells by applying CRISPR/Cas9 genome editing to an osteoblastic cell line MC3T3-E1 subclone 4. The extracellular Pi level was increased in the Pit1-KO and Pit2-KO clones due to the reduced Pi uptake. Interestingly, in vitro mineralization was accelerated in the Pit1-KO and Pit2-KO clones, although the induction of the expression of osteogenic marker genes was suppressed. In the cells before mineralization, extracellular levels of pyrophosphate (PPi) and adenosine triphosphate (ATP) were increased in the Pit1-KO and Pit2-KO clones, which might be attributable to the reduced expression and activity of tissue-nonspecific alkaline phosphatase (TNSALP). A 24-h treatment with high Pi reduced the expression and activity of TNSALP, suggesting that the suppression of TNSALP in the Pit1-KO and Pit2-KO clones was caused by the increased availability of extracellular Pi. Lentiviral gene transfer of Pit1 and Pit2 restored the changes observed in Pit1-KO and Pit2-KO clones, respectively. The expressions of P2Y2 and P2X7 which encode receptors for extracellular ATP were altered in the Pit1-KO and Pit2-KO clones, suggesting an influence on purinergic signaling. In mineralized cells after long-term culture, intracellular levels of PPi and ATP were higher in the Pit1-KO and Pit2-KO clones. Taken together, ablation of Pit1 or Pit2 in this osteoblastic cell model led to accelerated mineralization, suppressed TNSALP and altered the levels of extracellular and intracellular PPi and ATP, which might be partly mediated by changes in the availability of extracellular Pi.
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Affiliation(s)
- Miwa Yamazaki
- Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization, Izumi, Osaka 594-1101, Japan
| | - Masanobu Kawai
- Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization, Izumi, Osaka 594-1101, Japan
| | - Saori Kinoshita
- Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization, Izumi, Osaka 594-1101, Japan
| | - Kanako Tachikawa
- Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization, Izumi, Osaka 594-1101, Japan
| | - Tatsuro Nakanishi
- Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization, Izumi, Osaka 594-1101, Japan; Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Toshimi Michigami
- Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization, Izumi, Osaka 594-1101, Japan.
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Silva PPB, Pereira RMR, Takayama L, Borba CG, Duarte FH, Trarbach EB, Martin RM, Bronstein MD, Tritos NA, Jallad RS. Impaired Bone Microarchitecture in Premenopausal Women With Acromegaly: The Possible Role of Wnt Signaling. J Clin Endocrinol Metab 2021; 106:2690-2706. [PMID: 33871626 DOI: 10.1210/clinem/dgab260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Indexed: 12/17/2022]
Abstract
CONTEXT Acromegaly can impair bone integrity, increasing the risk of vertebral fractures (VFs). OBJECTIVE To evaluate the impact of isolated GH/IGF-I hypersecretion on bone turnover markers, Wnt inhibitors, bone mineral density (BMD), microarchitecture, bone strength and vertebral fractures in female patients with acromegaly (Acro), compared with healthy control group (HC). DESIGN, SETTING, AND PATIENTS Cross-sectional study including 83 premenopausal women without any pituitary deficiency:18 acromegaly in remission (AcroR), 12 in group with active acromegaly (AcroA), and 53 HC. Serum procollagen type 1 N-terminal propeptide, β-carboxy-terminal crosslinked telopeptide of type 1 collagen, osteocalcin, sclerostin, and DKK1 were measured in blood samples. dual-energy X-ray absorptiometry, high-resolution peripheral quantitative computed tomography (HR-pQCT) and vertebral fractures evaluation were also assessed simultaneously. MAIN OUTCOME AND RESULTS AcroA showed significantly lower sclerostin and higher DKK1 compared with HC. On HR-pQCT of tibia and radius, Acro showed impairment of trabecular (area and trabecular number), increased cortical porosity, and increased cortical area and cortical thickness compared with HC. The only significant correlation found with HR-pQCT parameters was a positive correlation between cortical porosity and serum DKK1 (R = 0.45, P = 0.044). Mild VFs were present in approximately 30% of patients. CONCLUSIONS Eugonadal women with acromegaly without any pituitary deficiency showed increased cortical BMD, impairment of trabecular bone microstructure, and increased VF. Sclerostin was not correlated with any HR-pQCT parameters; however, DKK1 was correlated with cortical porosity in tibia (P = 0.027). Additional studies are needed to clarify the role of Wnt inhibitors on bone microarchitecture impairment in acromegaly.
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Affiliation(s)
- Paula P B Silva
- Neuroendocrine Unit, Division of Endocrinology and Metabolism, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP 05403-010, Brazil
| | - Rosa M R Pereira
- Bone Metabolism Laboratory, Rheumatology Division, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP 01246903, Brazil
- Rheumatology Division Hospital das Clinicas HCFMUSP, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, SP 05403-010, Brazil
| | - Liliam Takayama
- Rheumatology Division Hospital das Clinicas HCFMUSP, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, SP 05403-010, Brazil
| | - Clarissa G Borba
- Neuroendocrine Unit, Division of Endocrinology and Metabolism, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP 05403-010, Brazil
| | - Felipe H Duarte
- Neuroendocrine Unit, Division of Endocrinology and Metabolism, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP 05403-010, Brazil
| | - Ericka B Trarbach
- Laboratorio de Endocrinologia Celular e Molecular/LIM25, Disciplina de Endocrinologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 01246903, Brasil
| | - Regina Matsunaga Martin
- Diseases Unit Osteometabolic, Endocrinology Service, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HC-FMUSP), São Paulo, SP 05403-010, Brazil
| | - Marcello D Bronstein
- Neuroendocrine Unit, Division of Endocrinology and Metabolism, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP 05403-010, Brazil
- Laboratorio de Endocrinologia Celular e Molecular/LIM25, Disciplina de Endocrinologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 01246903, Brasil
| | - Nicholas A Tritos
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Raquel S Jallad
- Neuroendocrine Unit, Division of Endocrinology and Metabolism, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP 05403-010, Brazil
- Laboratorio de Endocrinologia Celular e Molecular/LIM25, Disciplina de Endocrinologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 01246903, Brasil
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Zhou F, Wang Y, Li Y, Tang M, Wan S, Tian H, Chen X. Decreased Sclerostin Secretion in Humans and Mice With Nonalcoholic Fatty Liver Disease. Front Endocrinol (Lausanne) 2021; 12:707505. [PMID: 34421825 PMCID: PMC8374147 DOI: 10.3389/fendo.2021.707505] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/23/2021] [Indexed: 02/05/2023] Open
Abstract
Objectives Growing evidence argues for a relationship between liver and bone metabolisms. Sclerostin is a secreted glycoprotein and could antagonize osteoblast-mediated bone formation. Previous studies indicated that circulating sclerostin levels may be associated with metabolic parameters with inconsistent results. This study was designed to evaluate serum sclerostin in patients with or without nonalcoholic fatty liver disease (NAFLD) and to analyze its relationship with metabolic parameters in different populations. Methods A cross-sectional study was designed and 168 NAFLD subjects and 85 control subjects were included in this study. Serum sclerostin and metabolic parameters were measured. Mouse models of NAFLD were also induced by high-fat diet. Bone structural parameters were determined using microCT and mRNA expression levels of sclerostin in bone and liver tissues were measured. Results Our study suggested that circulating sclerostin levels were significantly lower in NAFLD subjects compared with normal controls. In NAFLD subjects, sclerostin was negatively correlated with multiple metabolic parameters, including waist circumference, urea, hepatic enzyme, gamma-glutamyl transpeptidase, and triglyceride, while such correlation was not significant in control subjects. Circulating sclerostin was also negatively correlated with fatty liver index in NAFLD subjects but not in control subjects. Mice fed on a high-fat diet had reduced bone mass and lower sclerostin expression levels in both the bone and liver tissues. Conclusions Our study suggested that the liver-lipid-bone interactions may play a key role in the abnormal bone metabolism in NAFLD, and circulating sclerostin may be a surrogate marker to reflect bone metabolism status in NAFLD subjects.
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Affiliation(s)
- Fangli Zhou
- Department of Endocrinology, Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
- Department of Endocrinology, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Wang
- Department of Endocrinology, Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Yujue Li
- Department of Endocrinology, Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Mengjia Tang
- Department of Endocrinology, Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Shan Wan
- Department of Endocrinology, Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Haoming Tian
- Department of Endocrinology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiang Chen
- Department of Endocrinology, Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
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The Development of Molecular Biology of Osteoporosis. Int J Mol Sci 2021; 22:ijms22158182. [PMID: 34360948 PMCID: PMC8347149 DOI: 10.3390/ijms22158182] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis is one of the major bone disorders that affects both women and men, and causes bone deterioration and bone strength. Bone remodeling maintains bone mass and mineral homeostasis through the balanced action of osteoblasts and osteoclasts, which are responsible for bone formation and bone resorption, respectively. The imbalance in bone remodeling is known to be the main cause of osteoporosis. The imbalance can be the result of the action of various molecules produced by one bone cell that acts on other bone cells and influence cell activity. The understanding of the effect of these molecules on bone can help identify new targets and therapeutics to prevent and treat bone disorders. In this article, we have focused on molecules that are produced by osteoblasts, osteocytes, and osteoclasts and their mechanism of action on these cells. We have also summarized the different pharmacological osteoporosis treatments that target different molecular aspects of these bone cells to minimize osteoporosis.
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Jürimäe J, Karvelyte V, Remmel L, Tamm AL, Purge P, Gruodyte-Raciene R, Kamandulis S, Maasalu K, Gracia-Marco L, Tillmann V. Serum sclerostin concentration is associated with specific adipose, muscle and bone tissue markers in lean adolescent females with increased physical activity. J Pediatr Endocrinol Metab 2021; 34:755-761. [PMID: 33851796 DOI: 10.1515/jpem-2020-0662] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 02/12/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Sclerostin is an important regulator of bone mass involving the Wnt/β-catenin signalling pathway. Relatively few studies have investigated the relationships of circulating sclerostin levels with adiposity-related and muscle-related biochemical factors in individuals with increased energy metabolism. The aim of this study was to investigate the associations of circulating sclerostin with adipokines, myokines, osteokines and body composition values in lean adolescent females with increased physical activity. METHODS A total of 73 adolescent females who were physically active and aged 14-18 years old participated in the study. Sclerostin, leptin, resistin, tumour necrosis factor (TNF)-α, interleukin (IL)-6, irisin, osteocalcin, C-terminal telopeptide of type I collagen (CTx), insulin-like growth factor (IGF)-1 and insulin were obtained from fasting blood samples. Body composition was measured by dual-energy X-ray absorptiometry (DXA) and analyzed for body fat mass, lean body mass, bone mineral content and muscle mass. RESULTS Serum sclerostin (117.9 ± 60.3 pg/mL) was correlated with age, age at menarche, body fat, muscle mass, training activity, leptin, TNF-α, irisin, osteocalcin, CTx and IGF-1. Multivariate linear regression analysis demonstrated that fat mass (β = 0.434; p = 0.001), leptin (β = -0.308; p = 0.015), irisin (β = 0.227; p = 0.024) and CTx (β = 0.290; p = 0.031) were the most important predictors of serum sclerostin concentration. CONCLUSIONS Bone-derived sclerostin is associated with specific adipokine, myokine and osteokine values in lean adolescent females with increased physical activity. These results suggest that the interactions between bone, adipose and muscle tissues could also be associated with circulating sclerostin concentrations.
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Affiliation(s)
- Jaak Jürimäe
- Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | | | - Liina Remmel
- Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | | | - Priit Purge
- Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | | | | | - Katre Maasalu
- Institute of Clinical Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Luis Gracia-Marco
- PROFITH (PROmoting FITness and Health through physical activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Vallo Tillmann
- Institute of Clinical Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
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Cariati I, Bonanni R, Onorato F, Mastrogregori A, Rossi D, Iundusi R, Gasbarra E, Tancredi V, Tarantino U. Role of Physical Activity in Bone-Muscle Crosstalk: Biological Aspects and Clinical Implications. J Funct Morphol Kinesiol 2021; 6:55. [PMID: 34205747 PMCID: PMC8293201 DOI: 10.3390/jfmk6020055] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 02/06/2023] Open
Abstract
Bone and muscle tissues influence each other through the integration of mechanical and biochemical signals, giving rise to bone-muscle crosstalk. They are also known to secrete osteokines, myokines, and cytokines into the circulation, influencing the biological and pathological activities in local and distant organs and cells. In this regard, even osteoporosis and sarcopenia, which were initially thought to be two independent diseases, have recently been defined under the term "osteosarcopenia", to indicate a synergistic condition of low bone mass with muscle atrophy and hypofunction. Undoubtedly, osteosarcopenia is a major public health concern, being associated with high rates of morbidity and mortality. The best current defence against osteosarcopenia is prevention based on a healthy lifestyle and regular exercise. The most appropriate type, intensity, duration, and frequency of exercise to positively influence osteosarcopenia are not yet known. However, combined programmes of progressive resistance exercises, weight-bearing impact exercises, and challenging balance/mobility activities currently appear to be the most effective in optimising musculoskeletal health and function. Based on this evidence, the aim of our review was to summarize the current knowledge about the role of exercise in bone-muscle crosstalk, highlighting how it may represent an effective alternative strategy to prevent and/or counteract the onset of osteosarcopenia.
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Affiliation(s)
- Ida Cariati
- PhD in Medical-Surgical Biotechnologies and Translational Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy;
- Department of Clinical Sciences and Translational Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy
| | - Roberto Bonanni
- Department of Systems Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy; (R.B.); (V.T.)
| | - Federica Onorato
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, Viale Oxford 81, 00133 Rome, Italy; (F.O.); (A.M.); (D.R.); (R.I.); (E.G.)
| | - Ambra Mastrogregori
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, Viale Oxford 81, 00133 Rome, Italy; (F.O.); (A.M.); (D.R.); (R.I.); (E.G.)
| | - Danilo Rossi
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, Viale Oxford 81, 00133 Rome, Italy; (F.O.); (A.M.); (D.R.); (R.I.); (E.G.)
| | - Riccardo Iundusi
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, Viale Oxford 81, 00133 Rome, Italy; (F.O.); (A.M.); (D.R.); (R.I.); (E.G.)
| | - Elena Gasbarra
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, Viale Oxford 81, 00133 Rome, Italy; (F.O.); (A.M.); (D.R.); (R.I.); (E.G.)
| | - Virginia Tancredi
- Department of Systems Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy; (R.B.); (V.T.)
- Centre of Space Bio-Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy
| | - Umberto Tarantino
- Department of Clinical Sciences and Translational Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, Viale Oxford 81, 00133 Rome, Italy; (F.O.); (A.M.); (D.R.); (R.I.); (E.G.)
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Baroi S, Czernik PJ, Chougule A, Griffin PR, Lecka-Czernik B. PPARG in osteocytes controls sclerostin expression, bone mass, marrow adiposity and mediates TZD-induced bone loss. Bone 2021; 147:115913. [PMID: 33722775 PMCID: PMC8076091 DOI: 10.1016/j.bone.2021.115913] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/05/2021] [Accepted: 03/06/2021] [Indexed: 01/07/2023]
Abstract
The peroxisome proliferator activated receptor gamma (PPARG) nuclear receptor regulates energy metabolism and insulin sensitivity. In this study, we present novel evidence for an essential role of PPARG in the regulation of osteocyte function, and support for the emerging concept of the conjunction between regulation of energy metabolism and bone mass. We report that PPARG is essential for sclerostin production, a recently approved target to treat osteoporosis. Our mouse model of osteocyte-specific PPARG deletion (Dmp1CrePparγflfl or γOTKO) is characterized with increased bone mass and reduced bone marrow adiposity, which is consistent with upregulation of WNT signaling and increased bone forming activity of endosteal osteoblasts. An analysis of osteocytes derived from γOTKO and control mice showed an excellent correlation between PPARG and SOST/sclerostin at the transcript and protein levels. The 8 kb sequence upstream of Sost gene transcription start site possesses multiple PPARG binding elements (PPREs) with at least two of them binding PPARG with dynamics reflecting its activation with full agonist rosiglitazone and correlating with increased levels of Sost transcript and sclerostin protein expression (Pearson's r = 0.991, p = 0.001). Older γOTKO female mice are largely protected from TZD-induced bone loss providing proof of concept that PPARG in osteocytes can be pharmacologically targeted. These findings demonstrate that transcriptional activities of PPARG are essential for sclerostin expression in osteocytes and support consideration of targeting PPARG activities with selective modulators to treat osteoporosis.
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Affiliation(s)
- Sudipta Baroi
- Department of Orthopaedic Surgery, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America; Center for Diabetes and Endocrine Research, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - Piotr J Czernik
- Department of Physiology and Pharmacology, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - Amit Chougule
- Department of Orthopaedic Surgery, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America; Center for Diabetes and Endocrine Research, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - Patrick R Griffin
- The Scripps Research Institute, Jupiter, FL, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - Beata Lecka-Czernik
- Department of Orthopaedic Surgery, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America; Department of Physiology and Pharmacology, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America; Center for Diabetes and Endocrine Research, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America.
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48
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Furukawa S, Chatani M, Higashitani A, Higashibata A, Kawano F, Nikawa T, Numaga-Tomita T, Ogura T, Sato F, Sehara-Fujisawa A, Shinohara M, Shimazu T, Takahashi S, Watanabe-Takano H. Findings from recent studies by the Japan Aerospace Exploration Agency examining musculoskeletal atrophy in space and on Earth. NPJ Microgravity 2021; 7:18. [PMID: 34039989 PMCID: PMC8155041 DOI: 10.1038/s41526-021-00145-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 04/25/2021] [Indexed: 11/09/2022] Open
Abstract
The musculoskeletal system provides the body with correct posture, support, stability, and mobility. It is composed of the bones, muscles, cartilage, tendons, ligaments, joints, and other connective tissues. Without effective countermeasures, prolonged spaceflight under microgravity results in marked muscle and bone atrophy. The molecular and physiological mechanisms of this atrophy under unloaded conditions are gradually being revealed through spaceflight experiments conducted by the Japan Aerospace Exploration Agency using a variety of model organisms, including both aquatic and terrestrial animals, and terrestrial experiments conducted under the Living in Space project of the Japan Ministry of Education, Culture, Sports, Science, and Technology. Increasing our knowledge in this field will lead not only to an understanding of how to prevent muscle and bone atrophy in humans undergoing long-term space voyages but also to an understanding of countermeasures against age-related locomotive syndrome in the elderly.
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Affiliation(s)
- Satoshi Furukawa
- Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, Tsukuba, Ibaraki, Japan.
| | - Masahiro Chatani
- Department of Pharmacology, Showa University School of Dentistry, Tokyo, Japan. .,Pharmacological Research Center, Showa University, Tokyo, Japan.
| | | | - Akira Higashibata
- Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, Tsukuba, Ibaraki, Japan
| | - Fuminori Kawano
- Graduate School of Health Sciences, Matsumoto University, Matsumoto, Nagano, Japan
| | - Takeshi Nikawa
- Department of Nutritional Physiology, Institute of Medical Nutrition, Tokushima University Graduate School, Tokushima, Japan
| | - Takuro Numaga-Tomita
- Department of Molecular Pharmacology, School of Medicine, Shinshu University, Matsumoto, Nagano, Japan
| | - Toshihiko Ogura
- Department of Developmental Neurobiology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Fuminori Sato
- Department of Growth Regulation, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Atsuko Sehara-Fujisawa
- Department of Growth Regulation, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Masahiro Shinohara
- Department of Rehabilitation for the Movement Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, Japan
| | | | - Satoru Takahashi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Haruko Watanabe-Takano
- Department of Cell Biology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
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49
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Peng J, Dong Z, Hui Z, Aifei W, Lianfu D, Youjia X. Bone Sclerostin and Dickkopf-related protein-1 are positively correlated with bone mineral density, bone microarchitecture, and bone strength in postmenopausal osteoporosis. BMC Musculoskelet Disord 2021; 22:480. [PMID: 34034718 PMCID: PMC8152077 DOI: 10.1186/s12891-021-04365-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 05/13/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Wnt-catenin signaling antagonists sclerostin and dickkopf-related protein-1 (Dkk-1) inhibit bone formation and are involved in the pathogenesis of postmenopausal osteoporosis (PO). However, the association between sclerostin and Dkk-1 and bone mineral density (BMD) in women with PO remains unclear. OBJECTIVE This study aimed to determine the association between sclerostin and Dkk-1 and BMD, bone microarchitecture, and bone strength in PO. METHODS Trabecular bone specimens were obtained from the femoral heads of 76 Chinese women with PO who underwent hip arthroplasty for femoral neck fractures. Micro-computed tomography (Micro-CT) was used to assess the BMD and bone microarchitecture of the trabecular bone. Subsequently, a mechanical test was performed. Finally, sclerostin and Dkk-1 in the bone were measured by enzyme-linked immunosorbent (Elisa) assay. Serum ionized serum ionised calcium, propeptide of type 1 collagen, C-terminal β-telopeptide of type-1 collagen, sclerostin, and Dkk-1 were also detected. RESULTS Bone sclerostin was positively correlated with serum ionised calcium, serum sclerostin, BMD, bone volume/tissue volume (BV/TV), trabecular number (Tb.N), maximum compressive force, and yield strength (r = 0.32, 0.906, 0.355, 0.401, 0.329, 0.355, and 0.293, respectively, P < 0.05) and negatively correlated with age and trabecular separation (Tb.Sp) (r = - 0.755 and - 0.503, respectively, P < 0.05). Bone Dkk-1 was positively correlated with serum ionised calcium, serum Dkk-1, BMD, BV/TV, trabecular thickness, Tb.N, maximum compressive force, yield strength, and Young's modulus (r = 0.38, 0.809, 0.293, 0.293, 0.228, 0.318, 0.352, 0.315, and 0.266, respectively, P < 0.05) and negatively correlated with age and Tb.Sp (r = - 0.56 and - 0.38, respectively, P < 0.05). Serum levels of sclerostin and Dkk-1 reflected the levels of sclerostin and Dkk-1 in the bone. CONCLUSION Bone sclerostin and Dkk-1 were positively correlated with BMD in women with PO, and higher levels of bone sclerostin and Dkk-1 might predict better BMD, bone microarchitecture, and bone strength. The potential molecular mechanisms still require further study.
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Affiliation(s)
- Jia Peng
- Orthopedic Department, Second Affiliated Hospital of Soochow University, Suzhou, China.,Second Affiliated Hospital of Soochow University, Osteoporosis Research Institute of Soochow University, Suzhou, China
| | - Zhang Dong
- Second Affiliated Hospital of Soochow University, Osteoporosis Research Institute of Soochow University, Suzhou, China
| | - Zhang Hui
- Orthopedic Department, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Wang Aifei
- Orthopedic Department, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Deng Lianfu
- Shanghai Institute of Traumatology and Orthopedics, Shanghai, China. .,Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases with Integrated Chinese-Western Medicine, Shanghai, China. .,Ruijin Hospital, Jiao Tong University School of Medicine, Shanghai, China.
| | - Xu Youjia
- Orthopedic Department, Second Affiliated Hospital of Soochow University, Suzhou, China. .,Second Affiliated Hospital of Soochow University, Osteoporosis Research Institute of Soochow University, Suzhou, China.
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50
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Bertoldo E, Adami G, Rossini M, Giollo A, Orsolini G, Viapiana O, Gatti D, Fassio A. The Emerging Roles of Endocrine Hormones in Different Arthritic Disorders. Front Endocrinol (Lausanne) 2021; 12:620920. [PMID: 34093428 PMCID: PMC8177688 DOI: 10.3389/fendo.2021.620920] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 04/20/2021] [Indexed: 12/17/2022] Open
Abstract
The relationship between endocrine hormones and the spectrum of rheumatic conditions has long been discussed in the literature, focusing primarily on sexual hormones, such as estrogens, androgens, prolactin (PRL). Estrogens are indeed involved in the pathogenesis of the main inflammatory arthritis thanks to their effects on the immune system, both stimulatory and inhibitory. The PRL system has been discovered in synovial tissue of rheumatoid arthritis (RA) and psoriatic arthritis (PsA), patients and has been propose as a new potential therapeutic target. Besides sexual hormones, in the last years scientific interest about the crosstalk of immune system with other class of hormones has grown. Hormones acting on the bone tissue (i.e. parathyroid hormone, vitamin D) and modulators of the Wnt pathway (i.e. Dickkopf-1) have been demonstrated to play active role in inflammatory arthritis course, defining a new field of research named osteoimmunology. PTH, which is one of the main determinants of Dkkopf-1, plays a crucial role in bone erosions in RA and a correlation between PTH, Trabecular Bone Score (TBS) and disease activity has been found in ankylosing spondylitis (AS). In PSA is under studying the interaction among IL-17 and bone metabolism. The purpose of this review is to discuss and summarize the recent data about the interaction between endocrine hormone and immune system in the main rheumatic disorders, covering in particular the role of bone-related hormones and cytokines. We will describe this relationship from a biochemical, diagnostic and therapeutic perspective, with a particular focus on RA, PsA and AS.
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Affiliation(s)
- Eugenia Bertoldo
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
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