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He D, Zheng S, Cao J, Deng J, Ding R, Xu Y, Cheng X. CircCOX6A1 suppresses osteogenic differentiation and aggravates osteoporosis via miR-512-3p/DYRK2 axis. Mol Biol Rep 2024; 51:636. [PMID: 38727863 DOI: 10.1007/s11033-024-09532-3] [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: 02/04/2024] [Accepted: 04/08/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Osteoporosis (OP), characterized by compromised bone integrity and increased fracture risk, poses a significant health challenge. Circular RNAs (circRNAs) have emerged as crucial regulators in various pathophysiological processes, prompting investigation into their role in osteoporosis. This study aimed to elucidate the involvement of circCOX6A1 in OP progression and understand its underlying molecular mechanisms. The primary objective was to explore the impact of circCOX6A1 on bone marrow-derived mesenchymal stem cells (BMSCs) and its potential interactions with miR-512-3p and DYRK2. METHODS GSE161361 microarray analysis was employed to assess circCOX6A1 expression in OP patients. We utilized in vitro and in vivo models, including BMSC cultures, osteogenic differentiation assays, and an OVX-induced mouse model of OP. Molecular techniques such as quantitative RT-PCR, western blotting, and functional assays like alizarin red staining (ARS) were employed to evaluate circCOX6A1 effects on BMSC proliferation, apoptosis, and osteogenic differentiation. The interaction between circCOX6A1, miR-512-3p, and DYRK2 was investigated through dual luciferase reporter assays, RNA immunoprecipitation, and RNA pull-down assays. RESULTS CircCOX6A1 was found to be upregulated in osteoporosis patients, and its expression inversely correlated with osteogenic differentiation of BMSCs. CircCOX6A1 knockdown enhanced osteogenic differentiation, as evidenced by increased mineralized nodule formation and upregulation of osteogenic markers. In vivo, circCOX6A1 knockdown ameliorated osteoporosis progression in OVX mice. Mechanistically, circCOX6A1 acted as a sponge for miR-512-3p, subsequently regulating DYRK2 expression. CONCLUSION This study provides compelling evidence for the role of circCOX6A1 in osteoporosis pathogenesis. CircCOX6A1 negatively regulates BMSC osteogenic differentiation through the miR-512-3p/DYRK2 axis, suggesting its potential as a therapeutic target for mitigating OP progression.
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Affiliation(s)
- Dingwen He
- Department of Orthopaedics, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, China
| | - Sikuan Zheng
- School of Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Jian Cao
- Department of Orthopaedics, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, China
| | - Jianjian Deng
- Department of Orthopaedics, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, China
| | - Rui Ding
- School of Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Yanjie Xu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, China.
| | - Xigao Cheng
- Department of Orthopaedics, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, China.
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Shimonty A, Pin F, Prideaux M, Peng G, Huot J, Kim H, Rosen CJ, Spiegelman BM, Bonewald LF. Deletion of FNDC5/irisin modifies murine osteocyte function in a sex-specific manner. eLife 2024; 12:RP92263. [PMID: 38661340 PMCID: PMC11045224 DOI: 10.7554/elife.92263] [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: 04/26/2024] Open
Abstract
Irisin, released from exercised muscle, has been shown to have beneficial effects on numerous tissues but its effects on bone are unclear. We found significant sex and genotype differences in bone from wildtype (WT) mice compared to mice lacking Fndc5 (knockout [KO]), with and without calcium deficiency. Despite their bone being indistinguishable from WT females, KO female mice were partially protected from osteocytic osteolysis and osteoclastic bone resorption when allowed to lactate or when placed on a low-calcium diet. Male KO mice have more but weaker bone compared to WT males, and when challenged with a low-calcium diet lost more bone than WT males. To begin to understand responsible molecular mechanisms, osteocyte transcriptomics was performed. Osteocytes from WT females had greater expression of genes associated with osteocytic osteolysis and osteoclastic bone resorption compared to WT males which had greater expression of genes associated with steroid and fatty acid metabolism. Few differences were observed between female KO and WT osteocytes, but with a low-calcium diet, the KO females had lower expression of genes responsible for osteocytic osteolysis and osteoclastic resorption than the WT females. Male KO osteocytes had lower expression of genes associated with steroid and fatty acid metabolism, but higher expression of genes associated with bone resorption compared to male WT. In conclusion, irisin plays a critical role in the development of the male but not the female skeleton and protects male but not female bone from calcium deficiency. We propose irisin ensures the survival of offspring by targeting the osteocyte to provide calcium in lactating females, a novel function for this myokine.
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Affiliation(s)
| | | | | | - Gang Peng
- Indiana UniversityIndianapolisUnited States
| | | | - Hyeonwoo Kim
- Korea Advanced Institute of Science and TechnologyDaejonRepublic of Korea
| | | | | | - Lynda F Bonewald
- Indiana UniversityIndianapolisUnited States
- Indiana Center for Musculoskeletal HealthIndianapolisUnited States
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3
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Shimonty A, Pin F, Prideaux M, Peng G, Huot JR, Kim H, Rosen CJ, Spiegelman BM, Bonewald LF. Deletion of FNDC5/Irisin modifies murine osteocyte function in a sex-specific manner. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.06.565774. [PMID: 37986762 PMCID: PMC10659274 DOI: 10.1101/2023.11.06.565774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Irisin, released from exercised muscle, has been shown to have beneficial effects on numerous tissues but its effects on bone are unclear. We found significant sex and genotype differences in bone from wildtype (WT) mice compared to mice lacking Fndc5 (KO), with and without calcium deficiency. Despite their bone being indistinguishable from WT females, KO female mice were partially protected from osteocytic osteolysis and osteoclastic bone resorption when allowed to lactate or when placed on a low-calcium diet. Male KO mice have more but weaker bone compared to WT males, and when challenged with a low-calcium diet lost more bone than WT males. To begin to understand responsible molecular mechanisms, osteocyte transcriptomics was performed. Osteocytes from WT females had greater expression of genes associated with osteocytic osteolysis and osteoclastic bone resorption compared to WT males which had greater expression of genes associated with steroid and fatty acid metabolism. Few differences were observed between female KO and WT osteocytes, but with a low calcium diet, the KO females had lower expression of genes responsible for osteocytic osteolysis and osteoclastic resorption than the WT females. Male KO osteocytes had lower expression of genes associated with steroid and fatty acid metabolism, but higher expression of genes associated with bone resorption compared to male WT. In conclusion, irisin plays a critical role in the development of the male but not the female skeleton and protects male but not female bone from calcium deficiency. We propose irisin ensures the survival of offspring by targeting the osteocyte to provide calcium in lactating females, a novel function for this myokine.
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Affiliation(s)
- Anika Shimonty
- Indiana Center for Musculoskeletal Health, School of Medicine, Indiana University, IN, 46202, Indianapolis
| | - Fabrizio Pin
- Indiana Center for Musculoskeletal Health, Department of Anatomy, School of Medicine, Indiana University, IN, 46202, Indianapolis
| | - Matt Prideaux
- Indiana Center for Musculoskeletal Health, Department of Anatomy, School of Medicine, Indiana University, IN, 46202, Indianapolis
| | - Gang Peng
- Indiana Center for Musculoskeletal Health, Department of Medicine and Molecular Genetics, School of Medicine, Indiana University, IN, 46202, Indianapolis
| | - Joshua R Huot
- Indiana Center for Musculoskeletal Health, Department of Anatomy, School of Medicine, Indiana University, IN, 46202, Indianapolis
| | - Hyeonwoo Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Clifford J Rosen
- Maine Medical Center Research Institute, ME, 04074, Scarborough, USA
| | - Bruce M Spiegelman
- Department of Cancer Biology, Dana Farber Cancer Institute and Department of Cell Biology, Harvard University Medical School, MA, 02115, Boston, USA
| | - Lynda F Bonewald
- Department of Anatomy, Cell Biology and Physiology, Orthopaedic Surgery, School of Medicine, Indiana Center for Musculoskeletal Health, Indiana Center for Musculoskeletal Health, Indiana University, IN, 46202, Indianapolis
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4
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Bolger MW, Tekkey T, Kohn DH. Peripheral canalicular branching is decreased in streptozotocin-induced diabetes and correlates with decreased whole-bone ultimate load and perilacunar elastic work. JBMR Plus 2024; 8:ziad017. [PMID: 38505218 PMCID: PMC10945723 DOI: 10.1093/jbmrpl/ziad017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 03/21/2024] Open
Abstract
Osteocytes, the most abundant cell type in bone, play a crucial role in mechanosensation and signaling for bone formation and resorption. These cells reside within a complex lacuno-canalicular network (OLCN). Osteocyte signaling is reduced under diabetic conditions, and both type 1 and type 2 diabetes lead to reduced bone turnover, perturbed bone composition, and increased fracture risk. We hypothesized that this reduced bone turnover, and altered bone composition with diabetes is associated with reduced OLCN architecture and connectivity. This study aimed to elucidate: (1) the sequence of OLCN changes with diabetes related to bone turnover and (2) whether changes to the OLCN are associated with tissue composition and mechanical properties. Twelve- to fourteen-week-old male C57BL/6 mice were administered streptozotocin at 50 mg/kg for 5 consecutive days to induce hyperglycemia, sacrificed at baseline (BL), or after being diabetic for 3 (D3) and 7 (D7) wk with age-matched (C3, C7) controls (n = 10-12 per group). Mineralized femoral sections were infiltrated with rhodamine, imaged with confocal microscopy, then the OLCN morphology and topology were characterized and correlated against bone histomorphometry, as well as local and whole-bone mechanics and composition. D7 mice exhibited a lower number of peripheral branches relative to C7. The total number of canalicular intersections (nodes) was lower in D3 and D7 relative to BL (P < 0.05 for all), and a reduced bone formation rate (BFR) was observed at D7 vs C7. The number of nodes explained only 15% of BFR, but 45% of Ct.BV/TV, and 31% of ultimate load. The number of branches explained 30% and 22% of the elastic work at the perilacunar and intracortical region, respectively. Collectively, the reduction in OLCN architecture and association of OLCN measures with bone turnover, mechanics, and composition highlights the relevance of the osteocyte and the OLCN and a potential therapeutic target for treating diabetic skeletal fragility.
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Affiliation(s)
- Morgan W Bolger
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI 48109, United States
| | - Tara Tekkey
- Department of Chemistry, College of Literature, Science and the Arts, University of Michigan, Ann Arbor, MI 48109, United States
| | - David H Kohn
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI 48109, United States
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, United States
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5
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Briggs EN, Lynch ME. The Role of Osteocytes in Pre-metastatic Niche Formation. Curr Osteoporos Rep 2024; 22:105-114. [PMID: 38198034 DOI: 10.1007/s11914-023-00857-9] [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] [Accepted: 12/22/2023] [Indexed: 01/11/2024]
Abstract
PURPOSE OF REVIEW The formation of a pre-metastatic niche (PMN), in which primary cancer cells prime the distant site to be favorable to their engraftment and survival, may help explain the strong osteotropism observed in multiple cancers, such as breast and prostate. PMN formation, which includes extracellular matrix remodeling, increased angiogenesis and vascular permeability, enhanced bone marrow-derived cell recruitment and immune suppression, has mostly been described in soft tissues. In this review, we summarize current literature of PMN formation in bone. We also present evidence of a potential role for osteocytes to be the primary mediators of PMN development. RECENT FINDINGS Osteocytes regulate the bone microenvironment in myriad ways beyond canonical bone tissue remodeling, including changes that contribute to PMN formation. Perilacunar tissue remodeling, which has been observed in both bone and non-bone metastatic cancers, is a potential mechanism by which osteocyte-cancer cell signaling stimulates changes to the bone microenvironment. Osteocytes also protect against endothelial permeability, including that induced by cancer cells, in a loading-mediated process. Finally, osteocytes are potent regulators of cells within the bone marrow, including progenitors and immune cells, and might be involved in this aspect of PMN formation. Osteocytes should be examined for their role in PMN formation.
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Affiliation(s)
- Emma N Briggs
- Department of Mechanical Engineering, University of Colorado, 427 UCB, Boulder, CO, 80309, USA
| | - Maureen E Lynch
- Department of Mechanical Engineering, University of Colorado, 427 UCB, Boulder, CO, 80309, USA.
- BioFrontiers Institute, University of Colorado, Boulder, CO, 80309, USA.
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Hua Z, Dai S, Li S, Wang J, Peng H, Rong Y, Yu H, Liu M. Deciphering the protective effect of Buzhong Yiqi Decoction on osteoporotic fracture through network pharmacology and experimental validation. J Orthop Surg Res 2023; 18:86. [PMID: 36737821 PMCID: PMC9898002 DOI: 10.1186/s13018-023-03545-7] [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: 11/28/2022] [Accepted: 01/15/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Osteoporotic fracture (OPF) is one of the most common skeletal diseases in an aging society. The Chinese medicine formula Buzhong Yiqi Decoction (BZYQD) is commonly used for treating OPF. However, the essential bioactive compounds and the underlying molecular mechanisms that promote fracture repair remain unclear. METHODS We used network pharmacology and experimental animal validation to address this issue. First, 147 bioactive BZYQD compounds and 32 target genes for treating OPF were screened and assessed. A BZYQD-bioactive compound-target gene-disease network was constructed using the Cytoscape software. Functional enrichment showed that the candidate target genes were enriched in oxidative stress- and inflammation-related biological processes and multiple pathways, including nuclear factor kappa B (NF-κB), and mitogen-activated protein kinase (MAPK) signaling pathways. Furthermore, an OPF rat model was established and treated with BZYQD. RESULTS The results revealed that BZYQD ameliorated OPF characteristics, including femoral microarchitecture, biomechanical properties, and histopathological changes, in a dose-dependent manner. Results of enzyme-linked immunosorbent assay showed that BZYQD reduced the serum's pro-inflammatory cytokines [Tumor necrosis factor-alpha (TNF-α), Interleukin (IL)-1β, and IL-6] and improved oxidative stress-related factors [glutathione (GSH) and superoxide dismutase (SOD)]. BZYQD significantly decreased the protein expression of NF-κB in OPF rat femurs, suppressed NF-κB activation, and activated the nuclear factor-erythroid factor 2-related factor (Nrf2)/heme oxygenase 1 (HO-1) and p38 MAPK as well ERK pathways. CONCLUSIONS Our results suggest that BZYQD could improve inflammation and oxidative stress during fracture repair by suppressing NF-κB and activating Nrf2/MAPK signaling pathways.
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Affiliation(s)
- Zhen Hua
- Department of Orthopedics, Wuxi Hospital of Traditional Chinese Medicine, Wuxi, China
| | - Shijie Dai
- grid.268505.c0000 0000 8744 8924College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang China
| | - Shaoshuo Li
- Department of Orthopedics, Wuxi Hospital of Traditional Chinese Medicine, Wuxi, China
| | - Jianwei Wang
- Department of Orthopedics, Wuxi Hospital of Traditional Chinese Medicine, Wuxi, China
| | - Hongcheng Peng
- Department of Orthopedics, Wuxi Hospital of Traditional Chinese Medicine, Wuxi, China
| | - Yi Rong
- Department of Orthopedics, Wuxi Hospital of Traditional Chinese Medicine, Wuxi, China
| | - Hao Yu
- Department of Orthopedics, Wuxi Hospital of Traditional Chinese Medicine, Wuxi, China
| | - Mingming Liu
- Department of Orthopedics, The Second People's Hospital of Lianyungang, 41 Hailian East Road, Haizhou District, Lianyungang, 222006, Jiangsu Province, China.
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7
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Pan B, Cai J, Zhao P, Liu J, Fu S, Jing G, Niu Q, Li Q. Relationship between prevalence and risk of osteoporosis or osteoporotic fracture with non-alcoholic fatty liver disease: A systematic review and meta-analysis. Osteoporos Int 2022; 33:2275-2286. [PMID: 35764892 DOI: 10.1007/s00198-022-06459-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 05/31/2022] [Indexed: 10/17/2022]
Abstract
UNLABELLED The aim of this study was to investigate the relationship between prevalence and risks of osteoporosis or osteoporotic fracture and NAFLD. Patients with NAFLD should be monitored regularly for bone mineral density and bone metabolism indicators to prevent osteoporosis or osteoporotic fractures. OBJECTIVES The aim of this meta-analysis was to investigate the relationship between prevalence and risks of osteoporosis or osteoporotic fracture and non-alcoholic fatty liver disease (NAFLD). METHODS Five databases, including PubMed, Web of Science, Embase, Scopus and Cochrane Library, were searched since the conception of these databases until December 2021. The cohort studies, cross-sectional analyses or case-control studies evaluating the relationship between osteoporosis or osteoporotic fracture and NAFLD were retrieved from these databases. Relevant data were extracted from the included studies, and a meta-analysis was performed. RESULTS A total of seven studies were included. The prevalence of osteoporosis or osteoporotic fractures was higher in the NAFLD group than in the non-NAFLD group [OR = 1.17, 95%CI(1.04,1.31)], while the prevalence of osteoporosis was higher in the NAFLD group than in the non-NAFLD group [OR = 1.46, 95%CI (1.21,1.77) and OR = 1.48, 95%CI (1.31,1.68), respectively] in men and women. The risk of osteoporosis or osteoporotic fractures was higher in the NAFLD group than in the non-NAFLD group [OR = 1.33,95%CI (1.24,1.44) and OR = 1.57,95%CI (1.08,2.29), respectively]. The risk of osteoporosis or osteoporotic fractures was higher in male and female NAFLD groups than that in the non-NAFLD group [OR = 1.29, 95%CI(1.14,1.47) and OR = 1.36, 95%CI (1.25,1.48), respectively]. After parameter adjustment, the risk of osteoporosis or osteoporotic fracture was higher in the male NAFLD group than in the non-NAFLD group [OR = 2.10, 95%CI(1.36,3.25)], while no significant difference was found among women [OR = 1.13, 95%CI (0.86,1.48)]. CONCLUSIONS The prevalence and risk of osteoporosis or osteoporotic fractures were significantly associated with NAFLD in men and women. TRIAL REGISTRATION PROSPERO 2022 CRD42022304708.
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Affiliation(s)
- Binjing Pan
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Jing Cai
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Pingping Zhao
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Jingfang Liu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China.
- Department of Endocrinology, The First Hospital of Lan zhou University, Lanzhou, Gansu, China.
| | - Songbo Fu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Department of Endocrinology, The First Hospital of Lan zhou University, Lanzhou, Gansu, China
| | - Gaojing Jing
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Department of Endocrinology, The First Hospital of Lan zhou University, Lanzhou, Gansu, China
| | - Qianglong Niu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Department of Endocrinology, The First Hospital of Lan zhou University, Lanzhou, Gansu, China
| | - Qiong Li
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Department of Endocrinology, The First Hospital of Lan zhou University, Lanzhou, Gansu, China
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Yang Z, Feng L, Wang M, Li Y, Bai S, Lu X, Wang H, Zhang X, Wang Y, Lin S, Tortorella MD, Li G. Sesamin Promotes Osteoporotic Fracture Healing by Activating Chondrogenesis and Angiogenesis Pathways. Nutrients 2022; 14:nu14102106. [PMID: 35631249 PMCID: PMC9147588 DOI: 10.3390/nu14102106] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 12/31/2022] Open
Abstract
Osteoporotic fracture has been regarded as one of the most common bone disorders in the aging society. The natural herb-derived small molecules were revealed as potential treatment approaches for osteoporotic fracture healing. Sesamin is a member of lignan family, which possesses estrogenic activity and plays a significant role in modulating bone homeostasis. Our previous study reported the promoting effect of sesamin on postmenopausal osteoporosis treatment. However, the role of sesamin in osteoporotic fracture healing has not been well studied yet. In this study, we further investigated the putative treatment effect of sesamin on osteoporotic fracture healing. Our study indicated that sesamin could activate bone morphogenetic protein 2 (BMP2) signaling pathway and further promotes in vitro chondrogenesis and angiogenesis activities. This promoting effect was abolished by the treatment of ERα inhibitor. In the osteoporotic bone fracture model, we demonstrated that sesamin markedly improves the callus formation and increases the cartilaginous area at the early-stage, as well as narrowing the fracture gap, and expands callus volume at the late-stage fracture healing site of the OVX mice femur. Furthermore, the angiogenesis at the osteoporotic fracture site was also significantly improved by sesamin treatment. In conclusion, our research illustrated the therapeutic potential and underlying regulation mechanisms of sesamin on osteoporotic fracture healing. Our studies shed light on developing herb-derived bioactive compounds as novel drugs for the treatment of osteoporotic fracture healing, especially for postmenopausal women with low estrogen level.
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Affiliation(s)
- Zhengmeng Yang
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; (Z.Y.); (M.W.); (Y.L.); (S.B.); (X.L.); (H.W.); (X.Z.); (S.L.)
| | - Lu Feng
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China; (L.F.); (Y.W.)
| | - Ming Wang
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; (Z.Y.); (M.W.); (Y.L.); (S.B.); (X.L.); (H.W.); (X.Z.); (S.L.)
| | - Yucong Li
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; (Z.Y.); (M.W.); (Y.L.); (S.B.); (X.L.); (H.W.); (X.Z.); (S.L.)
| | - Shanshan Bai
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; (Z.Y.); (M.W.); (Y.L.); (S.B.); (X.L.); (H.W.); (X.Z.); (S.L.)
| | - Xuan Lu
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; (Z.Y.); (M.W.); (Y.L.); (S.B.); (X.L.); (H.W.); (X.Z.); (S.L.)
| | - Haixing Wang
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; (Z.Y.); (M.W.); (Y.L.); (S.B.); (X.L.); (H.W.); (X.Z.); (S.L.)
| | - Xiaoting Zhang
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; (Z.Y.); (M.W.); (Y.L.); (S.B.); (X.L.); (H.W.); (X.Z.); (S.L.)
| | - Yaofeng Wang
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China; (L.F.); (Y.W.)
| | - Sien Lin
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; (Z.Y.); (M.W.); (Y.L.); (S.B.); (X.L.); (H.W.); (X.Z.); (S.L.)
| | - Micky D. Tortorella
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China; (L.F.); (Y.W.)
- Correspondence: (M.D.T.); (G.L.)
| | - Gang Li
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; (Z.Y.); (M.W.); (Y.L.); (S.B.); (X.L.); (H.W.); (X.Z.); (S.L.)
- Correspondence: (M.D.T.); (G.L.)
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9
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Chen W, Zhang B, Chang X. Emerging roles of circular RNAs in osteoporosis. J Cell Mol Med 2021; 25:9089-9101. [PMID: 34490735 PMCID: PMC8500962 DOI: 10.1111/jcmm.16906] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 02/06/2023] Open
Abstract
Osteoporosis is one bone disease characterized with skeletal impairment, bone strength reduced and fracture risk enhanced. The regulation processes of bone metabolism are associated with several factors such as mechanical stimulation, epigenetic regulation and hormones. However, the mechanism of osteoporosis remains unsatisfactory. Increasing high‐throughput RNA sequencing and circular RNAs (circRNAs) microarray studies indicated that circRNAs are differentially expressed in osteoporosis. Growing functional studies further pinpointed specific deregulated expressed circRNAs (e.g., circ_28313, circ_0016624, circ_0006393, circ_0076906 and circ_0048211) for their functions involved in bone metabolism, including bone marrow stromal cells (BMSCs) differentiation, proliferation and apoptosis. Moreover, CircRNAs (circ_0002060, Circ_0001275 and Circ_0001445) may be acted as diagnostic biomarkers for osteoporosis. This review discussed recent progresses in the circRNAs expression profiling analyses and their potential functions in regulating BMSCs differentiation, proliferation and apoptosis.
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Affiliation(s)
- Weichun Chen
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Baozhong Zhang
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiao Chang
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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