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Chen Z, Choi ER, Encarnacion AM, Yao H, Ding M, Park YH, Choi SM, An YJ, Hong E, Choi HJ, Kim SK, Nam YE, Kim GJ, Park SW, Kim JS, Kim E, Lee S, Cho JH, Lee TH. Discovery of TCP-(MP)-caffeic acid analogs as a new class of agents for treatment of osteoclastic bone loss. Bioorg Chem 2024; 150:107603. [PMID: 38968905 DOI: 10.1016/j.bioorg.2024.107603] [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: 02/28/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 07/07/2024]
Abstract
Inhibition of LSD1 was proposed as promising and attractive therapies for treating osteoporosis. Here, we synthesized a series of novel TCP-(MP)-Caffeic acid analogs as potential LSD1 inhibitors to assess their inhibitory effects on osteoclastogenesis by using TRAP-staining assay and try to explore the preliminary SAR. Among them, TCP-MP-CA (11a) demonstrated osteoclastic bone loss both in vitro and in vivo, showing a significant improvement in the in vivo effects compared to the LSD1 inhibitor GSK-LSD1. Additionally, we elucidated a mechanism that 11a and its precursor that 11e directly bind to LSD1/CoREST complex through FAD to inhibit LSD1 demethylation activity and influence its downstream IκB/NF-κB signaling pathway, and thus regulate osteoclastic bone loss. These findings suggested 11a or 11e as potential novel candidates for treating osteoclastic bone loss, and a concept for further development of TCP-(MP)-Caffeic acid analogs for therapeutic use in osteoporosis clinics.
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Affiliation(s)
- Zhihao Chen
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Eun Rang Choi
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan 49315, Republic of Korea
| | - Alessandra Marie Encarnacion
- Department of Interdisciplinary Program of Biomedical Engineering, Graduate School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hongyuan Yao
- Department of Interdisciplinary Program of Biomedical Engineering, Graduate School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Mina Ding
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Young-Hoon Park
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, 41061, Republic of Korea
| | - Se Myeong Choi
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan 49315, Republic of Korea
| | - Yeon Jin An
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan 49315, Republic of Korea
| | - Eunmi Hong
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, 41061, Republic of Korea
| | - Hye-Ji Choi
- Department of Biological Sciences and Research Center of Ecomimetics, College of Natural Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sang Kyoon Kim
- Preclinical Research Center (PRC), Daegu-Gyeongbuk Medical Innovation Foundation (K-MEDI Hub), Daegu 41061, Republic of Korea
| | - Ye Eun Nam
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan 49315, Republic of Korea
| | - Geun-Joong Kim
- Department of Biological Sciences and Research Center of Ecomimetics, College of Natural Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sang-Wook Park
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jeong-Sun Kim
- Department of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - Eunae Kim
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 61452, Republic of Korea
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jong Hyun Cho
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan 49315, Republic of Korea; Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan 49201, Republic of Korea.
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea; Department of Interdisciplinary Program of Biomedical Engineering, Graduate School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea.
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2
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Zhou J, Sui M, Ji F, Shen S, Lin Y, Jin M, Tao J. Hsa_circ_0036872 has an important promotional effect in enhancing osteogenesis of dental pulp stem cells by regulating the miR-143-3p/IGF2 axis. Int Immunopharmacol 2024; 130:111744. [PMID: 38412676 DOI: 10.1016/j.intimp.2024.111744] [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: 01/05/2024] [Revised: 02/12/2024] [Accepted: 02/20/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Circular RNAs (circRNAs), an extremely stable group of RNAs, possess a covalent closed-loop configuration. Numerous studies have highlighted the involvement of circRNAs in physiological processes and the development of various diseases. The present study aimed to investigate how circRNA regulates the osteogenic differentiation of human dental pulp stem cells (hDPSCs). METHODS We isolated hDPSCs from dental pulp and used next-generation sequencing analysis to determine the differentially-expressed circRNAs during osteogenic differentiation. Bioinformatics and dual-luciferase reporter assays identified the downstream targets. The role of circRNAs in osteogenic differentiation was further confirmed through the use of heterotopic bone models. RESULTS We found that hsa_circ_0036872 expression was increased during osteogenic differentiation of hDPSCs, and downregulation of hsa_circ_0036872 inhibited their osteogenic differentiation. Dual-luciferase reporter assays showed that both miR-143-3p and IGF2 were downstream targets of hsa_circ_0036872. Overexpression of IGF2 or inhibition of miR-143-3p restored the osteogenic differentiation ability of hDPSCs after silencing hsa_circ_0036872. Overexpression of IGF2 reversed the inhibitory effect of miR-143-3p on osteogenic differentiation. CONCLUSION Taken together, our results show that hsa_circ_0036872 exerts an important promotional effect in enhancing the osteogenesis of dental pulp stem cells by regulating the miR-143-3p/IGF2 axis. These data suggest a novel therapeutic strategy for osteoporosis treatment and periodontal tissue regeneration.
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Affiliation(s)
- Jiaxin Zhou
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Meizhi Sui
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China; Department of Stomatology, Kashgar Prefecture Second People's Hospital, Kashgar Xinjiang 844000, China
| | - Fang Ji
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, ; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Shihui Shen
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Yueting Lin
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Mingming Jin
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Pudong New Area, Shanghai 201318, China.
| | - Jiang Tao
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200011, China.
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3
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Wang X, Ge Q, Zeng Q, Zou K, Bao Z, Ying J, Wu Z, Jin H, Chen J, Xu T. Dnmt3b ablation affects fracture repair process by regulating apoptosis. BMC Musculoskelet Disord 2024; 25:180. [PMID: 38413962 PMCID: PMC10900613 DOI: 10.1186/s12891-024-07283-7] [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: 11/26/2023] [Accepted: 02/14/2024] [Indexed: 02/29/2024] Open
Abstract
PURPOSE Previous studies have shown that DNA methyltransferase 3b (Dnmt3b) is the only Dnmt responsive to fracture repair and Dnmt3b ablation in Prx1-positive stem cells and chondrocyte cells both delayed fracture repair. Our study aims to explore the influence of Dnmt3b ablation in Gli1-positive stem cells in fracture healing mice and the underlying mechanism. METHODS We generated Gli1-CreERT2; Dnmt3bflox/flox (Dnmt3bGli1ER) mice to operated tibia fracture. Fracture callus tissues of Dnmt3bGli1ER mice and control mice were collected and analyzed by X-ray, micro-CT, biomechanical testing, histopathology and TUNEL assay. RESULTS The cartilaginous callus significantly decrease in ablation of Dnmt3b in Gli1-positive stem cells during fracture repair. The chondrogenic and osteogenic indicators (Sox9 and Runx2) in the fracture healing tissues in Dnmt3bGli1ER mice much less than control mice. Dnmt3bGli1ER mice led to delayed bone callus remodeling and decreased biomechanical properties of the newly formed bone during fracture repair. Both the expressions of Caspase-3 and Caspase-8 were upregulated in Dnmt3bGli1ER mice as well as the expressions of BCL-2. CONCLUSIONS Our study provides an evidence that Dnmt3b ablation Gli1-positive stem cells can affect fracture healing and lead to poor fracture healing by regulating apoptosis to decrease chondrocyte hypertrophic maturation.
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Affiliation(s)
- Xu Wang
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Qinwen Ge
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Qinghe Zeng
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Kaiao Zou
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Zhengsheng Bao
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Jun Ying
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Zhen Wu
- Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Hongting Jin
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China.
| | - Jiali Chen
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China.
| | - Taotao Xu
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China.
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China.
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Chelly A, Bouzid A, Neifar F, Kammoun I, Tekari A, Masmoudi S, Chtourou H, Rebai A. Effect of Aerobic/Strength Training on RANKL Gene DNA Methylation Levels. J Phys Act Health 2023; 20:900-908. [PMID: 37295782 DOI: 10.1123/jpah.2022-0245] [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: 05/10/2022] [Revised: 04/11/2023] [Accepted: 04/19/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND The osteoclastogenesis RANKL gene plays a key role in bone remodeling. The hypomethylation of its promoter region may cause osteoporosis. The present study aimed to elucidate the influence of physical activity on DNA methylation changes of RANKL promoter cytosine-phosphate-guanine (CpG)-rich region in active and sedentary adults and to assess the effect of aerobic and strength training on RANKL DNA methylation changes among Tunisian-North African adults. METHODS A total of 104 participants including 52 adults (58% males and 42% females) and 52 adults (31% males and 69% females) were recruited for the observational and interventional part of the study, respectively. The intervention consisted of 12 weeks of aerobic training (30 min/session) followed by 10 minutes of strengthening exercises. All participants completed the International Physical Activity Questionnaire and provided blood samples for quantitative methylation-specific polymerase chain reaction (PCR) analysis. RESULTS The study revealed a significant difference (P = 6 × 10-10) in the methylation level of the RANKL promoter region between active and sedentary adults, with a 6.68-fold increase observed in the active group. After the intervention, both the trained (P = 41 × 10-5) and untrained (P = .002) groups displayed high methylation levels in the RANKL promoter region. In addition, the trained group exhibited significant improvements in heart rate (P = 2.2 × 10-16), blood pressure (P = 39 × 10-3), maximal oxygen uptake (P = 1.5 × 10-7), and fat mass (P = 7 × 10-4). CONCLUSION Exploring epigenetic modifications in the RANKL promoter region may contribute to a more comprehensive understanding of the complexity of osteoporosis. This suggests that aerobic/strength training could potentially improve the bone system, reducing its vulnerability to osteoporosis by increasing RANKL DNA methylation.
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Affiliation(s)
- Ameni Chelly
- Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax,Tunisia
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax,Tunisia
| | - Amal Bouzid
- Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax,Tunisia
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah,United Arab Emirates
| | - Fadoua Neifar
- Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax,Tunisia
| | - Ines Kammoun
- Service d'explorations fonctionnelles, CHU Habib-Bourguiba, Université de Sfax, Sfax,Tunisia
| | - Adel Tekari
- Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax,Tunisia
| | - Saber Masmoudi
- Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax,Tunisia
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax,Tunisia
- Physical Activity, Sport and Health, National Observatory of Sport, Tunis,Tunisia
| | - Ahmed Rebai
- Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax,Tunisia
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Zhang W, Yu L, Wang F, Chen M, Li H. Rosavin regulates bone homeostasis through HDAC1-induced epigenetic regulation of EEF2. Chem Biol Interact 2023; 384:110696. [PMID: 37689331 DOI: 10.1016/j.cbi.2023.110696] [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: 05/05/2023] [Revised: 08/15/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023]
Abstract
Bioactive constituents from Rhodiola rosea L. show a myriad of pharmacological effects on diverse diseases. Rosavin has been linked to reduced osteoclastogenesis, while its role in regulating osteogenesis remains unclear. The present study investigated whether and how Rosavin alleviates ovariectomy (OVX)-induced osteoporosis (OP) in mice. Rosavin had a therapeutic effect on OP in ovariectomized mice and inhibited osteoclast viability and promoted osteoblast viability. Integrated transcriptome sequencing, GO enrichment analysis, and PPI network construction revealed that the HDAC1/EEF2 axis was an important axis of gene action for Rosavin treatment. Mechanistically, HDAC1 suppressed EEF2 expression through histone deacetylation. Rescue experiments exhibited that HDAC1 promoted osteoclast viability, while EEF2 reversed the action of HDAC1 to restore bone homeostasis. In mice with OP, HDAC1 mitigated the effects of Rosavin, resulting in enhanced bone resorption and diminished bone formation, while EEF2 contributed to reduced bone resorption and elevated bone formation in mice. NF-κB and MAPK pathways were inhibited by Rosavin, enhanced by HDAC1, and blocked again by EEF2. To summarize, our results proved that Rosavin maintained bone homeostasis in OP via regulation of histone acetylation of EEF2, thus playing a key role as a therapeutic candidate for OP treatment.
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Affiliation(s)
- Wenhao Zhang
- Department of Oral and Craniofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Leilei Yu
- Department of Oral and Craniofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Fang Wang
- Department of Oral and Craniofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Minjie Chen
- Department of Oral and Craniofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China.
| | - Hui Li
- Department of Oral and Craniofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China.
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Shao C, Liu Y, Zhao Y, Jing Y, Li J, Lv Z, Fu T, Wang Z, Li G. DNA methyltransferases inhibitor azacitidine improves the skeletal phenotype of mild osteogenesis imperfecta by reversing the impaired osteogenesis and excessive osteoclastogenesis. Bone 2023; 170:116706. [PMID: 36822490 DOI: 10.1016/j.bone.2023.116706] [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: 08/22/2022] [Revised: 02/06/2023] [Accepted: 02/12/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND Osteogenesis imperfecta (OI), as a disease of congenital bone dysplasia, is often accompanied by the abnormal alteration of bone absorption and bone formation. DNA methyltransferases (Dnmts) can regulate the gene expression involved in osteogenesis and osteoclastogenesis. Dnmts changes and their effects on bone cells under OI is poorly understood. METHODS The Dnmts expression in adipose derived mesenchymal stem cells (ADSCs), bone marrow derived pre-osteoclasts (pre-Ocs) and femurs of Col1a2oim/+ and Col1a1+/-365 mice, both modeling mild OI types, were determined. The effects of azacitidine (Aza) administration and Dnmt3a knockdown by ShRNA on the osteogenic differentiation of ADSCs together with osteoclasts (Ocs) production of pre-Ocs were studied in vitro. The synthesis and secretion of collagen fibers of OI derived ADSCs were examined. The therapeutic outcomes of intraperitoneal (i.p.) infused Aza (1 mg/kg/2d) for 30 days were evaluated in OI mice. RESULTS Obviously elevated expression of Dnmts, especially Dnmt3a, existed in ADSCs, pre-Ocs, and femurs isolated from OI modeled mice. Much more collagen molecules of mutant ADSCs were secreted into the extracellular medium post Aza addition. Both Aza administration and Dnmt3a knockdown effectively enhanced the bone-forming capacity of affected ADSCs and reduced Ocs formation of OI mice in vitro. Aza treatment apparently improved the femora microstructure and biomechanical properties, increased bone formation and decreased the number of Ocs in mice with OI. CONCLUSION Highly expressed Dnmt3a contributed to the impaired osteogenesis and enhanced osteoclastogenesis of collagen defect-related OI. Aza medication effectively improved the femora phenotype of the two types of OI modeled mice partly by Dnmts inhibition and modulating cell stress response. These findings facilitated understanding the role of Dnmts alteration in skeletal pathological development of mild OI and preliminary confirmed the therapeutic potential of Dnmts depressants in mild OI treatment. Still, further researches are needed to explore the specific function of Dnmts in OI bones and clarify the benefits of Aza administration in OI treatment.
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Affiliation(s)
- Chenyi Shao
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, People's Republic of China
| | - Yi Liu
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, People's Republic of China
| | - Yuxia Zhao
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, People's Republic of China
| | - Yaqing Jing
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, People's Republic of China
| | - Jiaci Li
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, People's Republic of China
| | - Zhe Lv
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, People's Republic of China
| | - Ting Fu
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, People's Republic of China
| | - Zihan Wang
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, People's Republic of China
| | - Guang Li
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, People's Republic of China.
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Mo J, Wan MT, Au DWT, Shi J, Tam N, Qin X, Cheung NKM, Lai KP, Winkler C, Kong RYC, Seemann F. Transgenerational bone toxicity in F3 medaka (Oryzias latipes) induced by ancestral benzo[a]pyrene exposure: Cellular and transcriptomic insights. J Environ Sci (China) 2023; 127:336-348. [PMID: 36522066 DOI: 10.1016/j.jes.2022.04.051] [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: 02/21/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 06/17/2023]
Abstract
Benzo[a]pyrene (BaP), a ubiquitous pollutant, raises environmental health concerns due to induction of bone toxicity in the unexposed offspring. Exposure of F0 ancestor medaka (Oryzias latipes) to 1 µg/L BaP for 21 days causes reduced vertebral bone thickness in the unexposed F3 male offspring. To reveal the inherited modifications, osteoblast (OB) abundance and molecular signaling pathways of transgenerational BaP-induced bone thinning were assessed. Histomorphometric analysis showed a reduction in OB abundance. Analyses of the miRNA and mRNA transcriptomes revealed the dysregulation of Wnt signaling (frzb/ola-miR-1-3p, sfrp5/ola-miR-96-5p/miR-455-5p) and bone morphogenetic protein (Bmp) signaling (bmp3/ola-miR-96-5p/miR-181b-5p/miR-199a-5p/miR-205-5p/miR-455-5p). Both pathways are major indicators of impaired bone formation, while the altered Rank signaling in osteoclasts (c-fos/miR-205-5p) suggests a potentially augmented bone resorption. Interestingly, a typical BaP-responsive pathway, the Nrf2-mediated oxidative stress response (gst/ola-miR-181b-5p/miR-199a-5p/miR-205), was also affected. Moreover, mRNA levels of epigenetic modification enzymes (e.g., hdac6, hdac7, kdm5b) were found dysregulated. The findings indicated that epigenetic factors (e.g., miRNAs, histone modifications) may directly regulate the expression of genes associated with transgenerational BaP bone toxicity and warrants further studies. The identified candidate genes and miRNAs may serve as potential biomarkers for BaP-induced bone disease and as indicators of historic exposures in wild fish for conservation purposes.
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Affiliation(s)
- Jiezhang Mo
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510000, China; Shenzhen Key Laboratory for the Sustainable Use of Marine Biodiversity, Research Centre for the Oceans and Human Health, Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China; State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Miles Teng Wan
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Doris Wai-Ting Au
- Shenzhen Key Laboratory for the Sustainable Use of Marine Biodiversity, Research Centre for the Oceans and Human Health, Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China; State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Jingchun Shi
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Nathan Tam
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Xian Qin
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Napo K M Cheung
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Keng Po Lai
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China; Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Huan Cheng North 2nd Road 109, Guilin 541004, China
| | - Christoph Winkler
- Department of Biological Sciences, National University of Singapore, 119077, Singapore
| | - Richard Yuen-Chong Kong
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510000, China; Shenzhen Key Laboratory for the Sustainable Use of Marine Biodiversity, Research Centre for the Oceans and Human Health, Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China; State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
| | - Frauke Seemann
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510000, China; Center for Coastal Studies and Department of Life Sciences, Texas A&M University-Corpus Christi, Corpus Christi, Texas 78412, USA.
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8
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Yu W, Wang HL, Zhang J, Yin C. The effects of epigenetic modifications on bone remodeling in age-related osteoporosis. Connect Tissue Res 2023; 64:105-116. [PMID: 36271658 DOI: 10.1080/03008207.2022.2120392] [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] [Indexed: 02/03/2023]
Abstract
PURPOSE As the population ages, there is an increased risk of fracture and morbidity diseases associated with aging, such as age-related osteoporosis and other bone diseases linked to aging skeletons. RESULTS Several bone-related cells, including multipotent bone mesenchymal stem cells, osteoblasts that form bone tissue, and osteoclasts that break it down, are in symbiotic relationships throughout life. Growing evidence indicates that epigenetic modifications of cells caused by aging contribute to compromised bone remodeling and lead to osteoporosis. A number of epigenetic mechanisms are at play, including DNA/RNA modifications, histone modifications, microRNAs (miRNAs), and long noncoding RNAs (lncRNAs), as well as chromatin remodeling. CONCLUSION In this review, we summarized the epigenetic modifications of different bone-related cells during the development and progression of osteoporosis associated with aging. Additionally, we described a compensatory recovery mechanism under epigenetic regulation that may lead to new strategies for regulating bone remodeling in age-related osteoporosis.
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Affiliation(s)
- Wenyue Yu
- School and Hospital of Stomatology, Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang, China
| | - He-Ling Wang
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog, Norway
| | - Jianying Zhang
- Xiangya School of Stomatology, Central South University, Changsha, China
| | - Chengcheng Yin
- School and Hospital of Stomatology, Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang, China
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Kinkopf KM, Agarwal SC, Giuffra V, Minozzi S, Campana S, Caramella D, Riccomi G. Contextualizing bilateral asymmetry and gender: A multivariate approach to femoral cross-sectional geometry at rural Medieval Pieve di Pava, Italy. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2023; 180:173-195. [PMID: 36790747 DOI: 10.1002/ajpa.24625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 07/26/2022] [Accepted: 09/03/2022] [Indexed: 11/10/2022]
Abstract
OBJECTIVES Our objective was to identify the relationship between biocultural factors of sex-gender and age and patterns of femoral cross-sectional geometry with historical evidence about labor and activity from an archeological skeletal sample excavated from the rural Medieval site Pieve di Pava. MATERIALS AND METHODS The study site, Pieve di Pava, was a rural parish cemetery in Tuscany with osteoarcheological remains from the 7th to 12th centuries. Cross-sectional geometric analysis of femora from 110 individuals dated to the 10th-12th centuries were used to examine trends in bone quantity, shape, and bending strength between age and sex groups, as well as in clusters identified through Hierarchical Cluster Analysis (HCA). RESULTS Overall, our study sample showed remarkable heterogeneity and our cluster analysis revealed a complex underlying structure, indicating that divisions of labor did not follow a strict gender binary in our sample. We found high levels of bilateral asymmetry in our sample in multiple cross-sectional areas for a significant proportion of the population. We found minimal differences between age groups or sex. DISCUSSION Our results suggest that males and females had varied experiences of labor and work during their lives that did not reflect the strict binary gender roles sometimes documented for medieval Europe. One important axis of difference is the direction and magnitude of bilateral asymmetry observed in our femur sample, which is associated with divergent trends in section moduli and bone area measures.
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Affiliation(s)
- Katherine M Kinkopf
- Department of Geography and Anthropology, California State Polytechnic University, Pomona, California, USA
| | - Sabrina C Agarwal
- Department of Anthropology, University of California Berkeley, Berkeley, California, USA
| | | | - Simona Minozzi
- Paleopathology Division, University of Pisa, Pisa, Italy
| | - Stefano Campana
- Department of History and Cultural Heritage, University of Siena, Siena, Italy
| | | | - Giulia Riccomi
- Paleopathology Division, University of Pisa, Pisa, Italy
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10
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Ma H, Li M, Jia Z, Chen X, Bu N. MicroRNA-455-3p promotes osteoblast differentiation via targeting HDAC2. Injury 2022; 53:3636-3641. [PMID: 36070969 DOI: 10.1016/j.injury.2022.08.047] [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: 04/23/2022] [Revised: 08/17/2022] [Accepted: 08/20/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Fragility fracture commonly occurs in the elderly, the basis of fracture healing is osteoblast regeneration. The study measured the expression changes of microRNA-455-3p during fracture healing in patients with fragility fractures, and explored its influence on osteoblast differentiation. METHODS 108 postmenopausal women with osteoporosis were recruited, in which 58 cases with fragility fracture. qRT-PCR was used for the measurement of miR-455-3p levels. MC3T3-E1 cells were induced differentiation by BMP-2. ELISA was performed for the measurement of alkaline phosphates (ALP), runt-related transcription factor-2 (RUNX2), osteocalcin (OCN), and Collagen I. Luciferase reporter gene assay was done for the target gene analysis. RESULTS Serum miR-455-3p was significantly decreased in both osteoporosis and fragility fracture patients compared with the control group, which was most deficient in patients with fragility fracture. With the extension of treatment time, the level of miR-455-3p in serum increased gradually and reached the highest level at 4 weeks of treatment. Levels of miR-455-3p continued to increase on the 7th and 14th days after induction of cell differentiation. MiR-455-3p overexpression promoted cell proliferation, and increased the levels of osteoblast differentiation markers, including ALP, OCN, Collagen I, and RUNX2. MiR-455-3p in MC3T3-E1 cells was directly bound to HDAC2 and negatively regulated. Both MC3T3-E1 differentiation and the fracture healing of patients were accompanied by progressively reduced HDAC2. CONCLUSIONS MiR-455-3p promotes osteogenic differentiation which may be associated with fracture healing, HDAC2 acts as a target of miR-455-3p in the underlying mechanism.
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Affiliation(s)
- Huili Ma
- Department of Emergency Surgical Trauma Center, BinZhou Medical University Hospital, 661 Huanghe 2nd Road, Binzhou, Shandong, 256603, China
| | - Mintao Li
- Department of Emergency Surgical Trauma Center, BinZhou Medical University Hospital, 661 Huanghe 2nd Road, Binzhou, Shandong, 256603, China
| | - Zhuting Jia
- Department of Emergency Surgical Trauma Center, BinZhou Medical University Hospital, 661 Huanghe 2nd Road, Binzhou, Shandong, 256603, China.
| | - Xi Chen
- Department of Emergency Surgical Trauma Center, BinZhou Medical University Hospital, 661 Huanghe 2nd Road, Binzhou, Shandong, 256603, China
| | - Naitong Bu
- Department of Emergency Surgical Trauma Center, BinZhou Medical University Hospital, 661 Huanghe 2nd Road, Binzhou, Shandong, 256603, China
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11
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Zhang M, Gao Y, Li Q, Cao H, Yang J, Cai X, Xiao J. Downregulation of DNA methyltransferase-3a ameliorates the osteogenic differentiation ability of adipose-derived stem cells in diabetic osteoporosis via Wnt/β-catenin signaling pathway. Stem Cell Res Ther 2022; 13:397. [PMID: 35927735 PMCID: PMC9351106 DOI: 10.1186/s13287-022-03088-4] [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] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 07/23/2022] [Indexed: 02/06/2023] Open
Abstract
Background Diabetes-related osteoporosis (DOP) is a chronic disease caused by the high glucose environment that induces a metabolic disorder of osteocytes and osteoblast-associated mesenchymal stem cells. The processes of bone defect repair and regeneration become extremely difficult with DOP. Adipose-derived stem cells (ASCs), as seed cells in bone tissue engineering technology, provide a promising therapeutic approach for bone regeneration in DOP patients. The osteogenic ability of ASCs is lower in a DOP model than that of control ASCs. DNA methylation, as a mechanism of epigenetic regulation, may be involved in DNA methylation of various genes, thereby participating in biological behaviors of various cells. Emerging evidence suggests that increased DNA methylation levels are associated with activation of Wnt/β-catenin signaling pathway. The purpose of this study was to investigate the influence of the diabetic environment on the osteogenic potential of ASCs, to explore the role of DNA methylation on osteogenic differentiation of DOP-ASCs via Wnt/β-catenin signaling pathway, and to improve the osteogenic differentiation ability of ASCs with DOP. Methods DOP-ASCs and control ASCs were isolated from DOP C57BL/6 and control mice, respectively. The multipotency of DOP-ASCs was confirmed by Alizarin Red-S, Oil Red-O, and Alcian blue staining. Real-time polymerase chain reaction (RT-PCR), immunofluorescence, and western blotting were used to analyze changes in markers of osteogenic differentiation, DNA methylation, and Wnt/β-catenin signaling. Alizarin Red-S staining was also used to confirm changes in the osteogenic ability. DNMT small interfering RNA (siRNA), shRNA-Dnmt3a, and LVRNA-Dnmt3a were used to assess the role of Dnmt3a in osteogenic differentiation of control ASCs and DOP-ASCs. Micro-computed tomography, hematoxylin and eosin staining, and Masson staining were used to analyze changes in the osteogenic capability while downregulating Dnmt3a with lentivirus in DOP mice in vivo. Results The proliferative ability of DOP-ASCs was lower than that of control ASCs. DOP-ASCs showed a decrease in osteogenic differentiation capacity, lower Wnt/β-catenin signaling pathway activity, and a higher level of Dnmt3a than control ASCs. When Dnmt3a was downregulated by siRNA and shRNA, osteogenic-related factors Runt-related transcription factor 2 and osteopontin, and activity of Wnt/β-catenin signaling pathway were increased, which rescued the poor osteogenic potential of DOP-ASCs. When Dnmt3a was upregulated by LVRNA-Dnmt3a, the osteogenic ability was inhibited. The same results were obtained in vivo. Conclusions Dnmt3a silencing rescues the negative effects of DOP on ASCs and provides a possible approach for bone tissue regeneration in patients with diabetic osteoporosis.
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Affiliation(s)
- Maorui Zhang
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yujin Gao
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China.,Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Qing Li
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Huayue Cao
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Jianghua Yang
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Jingang Xiao
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China. .,Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China. .,Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China.
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12
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Oton-Gonzalez L, Mazziotta C, Iaquinta MR, Mazzoni E, Nocini R, Trevisiol L, D’Agostino A, Tognon M, Rotondo JC, Martini F. Genetics and Epigenetics of Bone Remodeling and Metabolic Bone Diseases. Int J Mol Sci 2022; 23:ijms23031500. [PMID: 35163424 PMCID: PMC8836080 DOI: 10.3390/ijms23031500] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 02/06/2023] Open
Abstract
Bone metabolism consists of a balance between bone formation and bone resorption, which is mediated by osteoblast and osteoclast activity, respectively. In order to ensure bone plasticity, the bone remodeling process needs to function properly. Mesenchymal stem cells differentiate into the osteoblast lineage by activating different signaling pathways, including transforming growth factor β (TGF-β)/bone morphogenic protein (BMP) and the Wingless/Int-1 (Wnt)/β-catenin pathways. Recent data indicate that bone remodeling processes are also epigenetically regulated by DNA methylation, histone post-translational modifications, and non-coding RNA expressions, such as micro-RNAs, long non-coding RNAs, and circular RNAs. Mutations and dysfunctions in pathways regulating the osteoblast differentiation might influence the bone remodeling process, ultimately leading to a large variety of metabolic bone diseases. In this review, we aim to summarize and describe the genetics and epigenetics of the bone remodeling process. Moreover, the current findings behind the genetics of metabolic bone diseases are also reported.
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Affiliation(s)
- Lucia Oton-Gonzalez
- Department of Medical Sciences, University of Ferrara, 64/b, Fossato di Mortara Street, 44121 Ferrara, Italy; (L.O.-G.); (C.M.); (M.R.I.); (M.T.)
| | - Chiara Mazziotta
- Department of Medical Sciences, University of Ferrara, 64/b, Fossato di Mortara Street, 44121 Ferrara, Italy; (L.O.-G.); (C.M.); (M.R.I.); (M.T.)
- Center for Studies on Gender Medicine, Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy
| | - Maria Rosa Iaquinta
- Department of Medical Sciences, University of Ferrara, 64/b, Fossato di Mortara Street, 44121 Ferrara, Italy; (L.O.-G.); (C.M.); (M.R.I.); (M.T.)
- Center for Studies on Gender Medicine, Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy
| | - Elisa Mazzoni
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | - Riccardo Nocini
- Unit of Otolaryngology, University of Verona, 37134 Verona, Italy;
| | - Lorenzo Trevisiol
- Unit of Maxillo-Facial Surgery and Dentistry, University of Verona, 37134 Verona, Italy; (L.T.); (A.D.)
| | - Antonio D’Agostino
- Unit of Maxillo-Facial Surgery and Dentistry, University of Verona, 37134 Verona, Italy; (L.T.); (A.D.)
| | - Mauro Tognon
- Department of Medical Sciences, University of Ferrara, 64/b, Fossato di Mortara Street, 44121 Ferrara, Italy; (L.O.-G.); (C.M.); (M.R.I.); (M.T.)
| | - John Charles Rotondo
- Department of Medical Sciences, University of Ferrara, 64/b, Fossato di Mortara Street, 44121 Ferrara, Italy; (L.O.-G.); (C.M.); (M.R.I.); (M.T.)
- Center for Studies on Gender Medicine, Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy
- Correspondence: (J.C.R.); (F.M.); Tel.: +39-0532-455536 (J.C.R.); +39-0532-455540 (F.M.)
| | - Fernanda Martini
- Department of Medical Sciences, University of Ferrara, 64/b, Fossato di Mortara Street, 44121 Ferrara, Italy; (L.O.-G.); (C.M.); (M.R.I.); (M.T.)
- Center for Studies on Gender Medicine, Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy
- Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy
- Correspondence: (J.C.R.); (F.M.); Tel.: +39-0532-455536 (J.C.R.); +39-0532-455540 (F.M.)
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13
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Sun P, Huang T, Huang C, Wang Y, Tang D. Role of histone modification in the occurrence and development of osteoporosis. Front Endocrinol (Lausanne) 2022; 13:964103. [PMID: 36093077 PMCID: PMC9458911 DOI: 10.3389/fendo.2022.964103] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
Osteoporosis is a systemic degenerative bone disease characterized by low bone mass and damage to bone microarchitecture, which increases bone fragility and susceptibility to fracture. The risk of osteoporosis increases with age; with the aging of the global population, osteoporosis is becoming more prevalent, adding to the societal healthcare burden. Histone modifications such as methylation, acetylation, ubiquitination, and ADP-ribosylation are closely related to the occurrence and development of osteoporosis. This article reviews recent studies on the role of histone modifications in osteoporosis. The existing evidence indicates that therapeutic targeting of these modifications to promote osteogenic differentiation and bone formation may be an effective treatment for this disease.
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Affiliation(s)
- Pan Sun
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tingrui Huang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chen Huang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yongjun Wang
- Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Yongjun Wang, ; Dezhi Tang,
| | - Dezhi Tang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Yongjun Wang, ; Dezhi Tang,
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14
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Forsyth RG, Krenács T, Athanasou N, Hogendoorn PCW. Cell Biology of Giant Cell Tumour of Bone: Crosstalk between m/wt Nucleosome H3.3, Telomeres and Osteoclastogenesis. Cancers (Basel) 2021; 13:5119. [PMID: 34680268 PMCID: PMC8534144 DOI: 10.3390/cancers13205119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 12/14/2022] Open
Abstract
Giant cell tumour of bone (GCTB) is a rare and intriguing primary bone neoplasm. Worrisome clinical features are its local destructive behaviour, its high tendency to recur after surgical therapy and its ability to create so-called benign lung metastases (lung 'plugs'). GCTB displays a complex and difficult-to-understand cell biological behaviour because of its heterogenous morphology. Recently, a driver mutation in histone H3.3 was found. This mutation is highly conserved in GCTB but can also be detected in glioblastoma. Denosumab was recently introduced as an extra option of medical treatment next to traditional surgical and in rare cases, radiotherapy. Despite these new insights, many 'old' questions about the key features of GCTB remain unanswered, such as the presence of telomeric associations (TAs), the reactivation of hTERT, and its slight genomic instability. This review summarises the recent relevant literature of histone H3.3 in relation to the GCTB-specific G34W mutation and pays specific attention to the G34W mutation in relation to the development of TAs, genomic instability, and the characteristic morphology of GCTB. As pieces of an etiogenetic puzzle, this review tries fitting all these molecular features and the unique H3.3 G34W mutation together in GCTB.
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Affiliation(s)
- Ramses G. Forsyth
- Department of Pathology, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090 Brussels, Belgium;
- Labaratorium for Experimental Pathology (EXPA), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Tibor Krenács
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllöi ut 26, 1085 Budapest, Hungary;
| | - Nicholas Athanasou
- Department of Histopathology, Nuffield Orthopaedic Centre, University of Oxford, NDORMS, Oxford OX3 7HE, UK;
| | - Pancras C. W. Hogendoorn
- Department of Pathology, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090 Brussels, Belgium;
- Labaratorium for Experimental Pathology (EXPA), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllöi ut 26, 1085 Budapest, Hungary;
- Department of Histopathology, Nuffield Orthopaedic Centre, University of Oxford, NDORMS, Oxford OX3 7HE, UK;
- Department of Pathology, Leiden University Medical Center (LUMC), Albinusdreef 2, 2300 RC Leiden, The Netherlands
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15
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Klemmer VA, Khera N, Siegenthaler BM, Bhattacharya I, Weber FE, Ghayor C. Effect of N-Vinyl-2-Pyrrolidone (NVP), a Bromodomain-Binding Small Chemical, on Osteoblast and Osteoclast Differentiation and Its Potential Application for Bone Regeneration. Int J Mol Sci 2021; 22:ijms222011052. [PMID: 34681710 PMCID: PMC8541071 DOI: 10.3390/ijms222011052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/05/2021] [Accepted: 10/09/2021] [Indexed: 12/15/2022] Open
Abstract
The human skeleton is a dynamic and remarkably organized organ system that provides mechanical support and performs a variety of additional functions. Bone tissue undergoes constant remodeling; an essential process to adapt architecture/resistance to growth and mechanical needs, but also to repair fractures and micro-damages. Despite bone's ability to heal spontaneously, certain situations require an additional stimulation of bone regeneration, such as non-union fractures or after tumor resection. Among the growth factors used to increase bone regeneration, bone morphogenetic protein-2 (BMP2) is certainly the best described and studied. If clinically used in high quantities, BMP2 is associated with various adverse events, including fibrosis, overshooting bone formation, induction of inflammation and swelling. In previous studies, we have shown that it was possible to reduce BMP2 doses significantly, by increasing the response and sensitivity to it with small molecules called "BMP2 enhancers". In the present study, we investigated the effect of N-Vinyl-2-pyrrolidone (NVP) on osteoblast and osteoclast differentiation in vitro and guided bone regeneration in vivo. We showed that NVP increases BMP2-induced osteoblast differentiation and decreases RANKL-induced osteoclast differentiation in a dose-dependent manner. Moreover, in a rabbit calvarial defect model, the histomorphometric analysis revealed that bony bridging and bony regenerated area achieved with NVP-loaded poly (lactic-co-glycolic acid (PLGA) membranes were significantly higher compared to unloaded membranes. Taken together, our results suggest that NVP sensitizes BMP2-dependent pathways, enhances BMP2 effect, and inhibits osteoclast differentiation. Thus, NVP could prove useful as "osteopromotive substance" in situations where a high rate of bone regeneration is required, and in the management of bone diseases associated with excessive bone resorption, like osteoporosis.
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Affiliation(s)
- Viviane A. Klemmer
- Oral Biotechnology and Bioengineering, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (V.A.K.); (N.K.); (B.M.S.); (I.B.)
| | - Nupur Khera
- Oral Biotechnology and Bioengineering, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (V.A.K.); (N.K.); (B.M.S.); (I.B.)
| | - Barbara M. Siegenthaler
- Oral Biotechnology and Bioengineering, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (V.A.K.); (N.K.); (B.M.S.); (I.B.)
| | - Indranil Bhattacharya
- Oral Biotechnology and Bioengineering, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (V.A.K.); (N.K.); (B.M.S.); (I.B.)
| | - Franz E. Weber
- Oral Biotechnology and Bioengineering, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (V.A.K.); (N.K.); (B.M.S.); (I.B.)
- Center for Applied Biotechnology and Molecular Medicine, University of Zurich, 8057 Zurich, Switzerland
- Correspondence: (F.E.W.); (C.G.)
| | - Chafik Ghayor
- Oral Biotechnology and Bioengineering, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (V.A.K.); (N.K.); (B.M.S.); (I.B.)
- Correspondence: (F.E.W.); (C.G.)
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Jiang Y, Ma H, Zhang Q, Shi J, Gao Y, Sun C, Zhang W. Integrative analyses reveal RNA regulatory network in Ti particles induced inflammation. EUR J INFLAMM 2021. [DOI: 10.1177/20587392211044863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction Wear particles induced inflammatory osteolysis is the most important initiating factors in the mechanism of aseptic loosening. However, the molecular network changes in this process remain largely elusive. Methods Here, we performed whole transcriptome analysis using Ti particles induced RAW264.7 cell model to identify specific genes and pathways. Results Sequencing results totally identified 159 mRNAs, 96 lncRNAs, 31 circRNAs, and 12 miRNAs were significantly differently expressed. Of these, we selected two of each RNA for qRT-PCR validation and the results were highly consistent with the RNA-seq data. GSEA analysis shows that upregulated gene sets were related to the three classical inflammation pathway, cytokine–cytokine receptor interaction, TNF, and NF-kappa B signaling pathway. The enriched genes included not only IL-1β and TNF- α, which were independently verified before sequencing, but also other inflammatory osteolysis-related genes such as Mmp9, Fas, and Ccl2. Co-differentially expressed RNAs were employed to construct the ceRNA co-regulatory network. Conclusion: The results revealed that 4 lncRNAs and 2 circRNAs formed a regulatory network to simultaneously regulate miR-3065-3p targeting Myo18a. The present study helps to comprehensively understand the molecular mechanisms and regulatory interaction networks during early inflammatory response.
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Affiliation(s)
- Yonghui Jiang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Huanzhi Ma
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Qin Zhang
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jun Shi
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yutong Gao
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Chengliang Sun
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Wei Zhang
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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17
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Roberto VP, Surget G, Le Lann K, Mira S, Tarasco M, Guérard F, Poupart N, Laizé V, Stiger-Pouvreau V, Cancela ML. Antioxidant, Mineralogenic and Osteogenic Activities of Spartina alterniflora and Salicornia fragilis Extracts Rich in Polyphenols. Front Nutr 2021; 8:719438. [PMID: 34485367 PMCID: PMC8416452 DOI: 10.3389/fnut.2021.719438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/26/2021] [Indexed: 12/21/2022] Open
Abstract
Osteoporosis is an aging-related disease and a worldwide health issue. Current therapeutics have failed to reduce the prevalence of osteoporosis in the human population, thus the discovery of compounds with bone anabolic properties that could be the basis of next generation drugs is a priority. Marine plants contain a wide range of bioactive compounds and the presence of osteoactive phytochemicals was investigated in two halophytes collected in Brittany (France): the invasive Spartina alterniflora and the native Salicornia fragilis. Two semi-purified fractions, prepared through liquid-liquid extraction, were assessed for phenolic and flavonoid contents, and for the presence of antioxidant, mineralogenic and osteogenic bioactivities. Ethyl acetate fraction (EAF) was rich in phenolic compounds and exhibited the highest antioxidant activity. While S. fragilis EAF only triggered a weak proliferative effect in vitro, S. alterniflora EAF potently induced extracellular matrix mineralization (7-fold at 250 μg/mL). A strong osteogenic effect was also observed in vivo using zebrafish operculum assay (2.5-fold at 10 μg/mL in 9-dpf larvae). Results indicate that polyphenol rich EAF of S. alterniflora has both antioxidant and bone anabolic activities. As an invasive species, this marine plant may represent a sustainable source of molecules for therapeutic applications in bone disorders.
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Affiliation(s)
- Vânia P Roberto
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Gwladys Surget
- University of Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané, France
| | - Klervi Le Lann
- University of Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané, France
| | - Sara Mira
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Marco Tarasco
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Fabienne Guérard
- University of Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané, France
| | - Nathalie Poupart
- University of Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané, France
| | - Vincent Laizé
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal.,S2-AQUA - Sustainable and Smart Aquaculture Collaborative Laboratory, Olhão, Portugal
| | | | - M Leonor Cancela
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal.,Faculty of Medicine and Biomedical Sciences, University of Algarve, Faro, Portugal.,Algarve Biomedical Center, Faro, Portugal
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Histone Acetylation in the Epigenetic Regulation of Bone Metabolism and Related Diseases. Stem Cells Int 2021; 2021:8043346. [PMID: 34326880 PMCID: PMC8310436 DOI: 10.1155/2021/8043346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/01/2021] [Indexed: 02/05/2023] Open
Abstract
As the earliest studied epigenetic modification, acetylation has been explored a lot through the years. While bone tissue acts as an indispensable part of body, researches aimed at the relationship between the bone and acetylation became necessary. Some environmental factors like diet may affect the metabolism status that some metabolites especially nicotinamide adenine dinucleotide (NAD) were found able to regulate intracellular histone acetylation in bone metabolism. This review focuses on representing the interaction among acetylation, metabolism, and the bone. The results showed that acetylation connects a lot with bone metabolism, while the explorations about related metabolites like acetyl-CoA or different environmental exposures are still limited. Some acetylation-related therapy methods of bone diseases based on metabolic regulation or epigenetic enzymes were also reviewed.
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Hu Y, Zhao X. Role of m6A in osteoporosis, arthritis and osteosarcoma (Review). Exp Ther Med 2021; 22:926. [PMID: 34306195 PMCID: PMC8281110 DOI: 10.3892/etm.2021.10358] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 03/11/2021] [Indexed: 12/18/2022] Open
Abstract
RNA modification is a type of post-transcriptional modification that regulates important cellular pathways, such as the processing and metabolism of RNA. The most abundant form of methylation modification is RNA N6-methyladenine (m6A), which plays various post-transcriptional regulatory roles in cellular biological functions, including cell differentiation, embryonic development and disease occurrence. Bones play a pivotal role in the skeletal system as they support and protect muscles and other organs, facilitate movement and ensure haematopoiesis. The development and remodelling of bones require a delicate and accurate regulation of gene expression by epigenetic mechanisms that involve modifications of histone, DNA and RNA. The present review discusses the enzymes and proteins involved in mRNA m6A methylation modification and summarises current research progress and the mechanisms of mRNA m6A methylation in common orthopaedic diseases, including osteoporosis, arthritis and osteosarcoma.
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Affiliation(s)
- Yibo Hu
- Department of Orthopaedic Trauma, The Affiliated Hospital of Qinghai University, Xining, Qinghai 810000, P.R. China
| | - Xiaohui Zhao
- Department of Orthopaedic Trauma, The Affiliated Hospital of Qinghai University, Xining, Qinghai 810000, P.R. China
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20
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Biological Mechanisms of Paeonoside in the Differentiation of Pre-Osteoblasts and the Formation of Mineralized Nodules. Int J Mol Sci 2021; 22:ijms22136899. [PMID: 34199016 PMCID: PMC8268717 DOI: 10.3390/ijms22136899] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 06/23/2021] [Accepted: 06/23/2021] [Indexed: 12/23/2022] Open
Abstract
Paeonia suffruticosa is a magnificent and long-lived woody plant that has traditionally been used to treat various diseases including inflammatory, neurological, cancer, and cardiovascular diseases. In the present study, we demonstrated the biological mechanisms of paeonoside (PASI) isolated from the dried roots of P. suffruticosa in pre-osteoblasts. Herein, we found that PASI has no cytotoxic effects on pre-osteoblasts. Migration assay showed that PASI promoted wound healing and transmigration in osteoblast differentiation. PASI increased early osteoblast differentiation and mineralized nodule formation. In addition, PASI enhanced the expression of Wnt3a and bone morphogenetic protein 2 (BMP2) and activated their downstream molecules, Smad1/5/8 and β-catenin, leading to increases in runt-related transcription factor 2 (RUNX2) expression during osteoblast differentiation. Furthermore, PASI-mediated osteoblast differentiation was attenuated by inhibiting the BMP2 and Wnt3a pathways, which was accompanied by reduction in the expression of RUNX2 in the nucleus. Taken together, our findings provide evidence that PASI enhances osteoblast differentiation and mineralized nodules by regulating RUNX2 expression through the BMP2 and Wnt3a pathways, suggesting a potential role for PASI targeting osteoblasts to treat bone diseases including osteoporosis and periodontitis.
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Lee H, Kim MH, Choi LY, Yang WM. Ameliorative effects of Osteo-F, a newly developed herbal formula, on osteoporosis via activation of bone formation. JOURNAL OF ETHNOPHARMACOLOGY 2021; 268:113590. [PMID: 33212177 DOI: 10.1016/j.jep.2020.113590] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The fruit of Schizandra chinensis and Lycium chinense, and the root of Eucommia ulmoides, components of Osteo-F, has traditionally been used for treating bone diseases in Korean Medicine. AIM OF THE STUDY The exact role and underlying mechanism of Osteo-F herbal formula on bone formation in osteoporosis was investigated in the present study. MATERIALS AND METHODS OVX mice were treated with 0.9, 9 and 90 mg/kg of Osteo-F for 4 weeks. Bone tissues including fourth to sixth lumbar vertebrae (LV) and femur were collected to analyze the bone mineral density (BMD). In addition, serum biomarkers were estimated by enzyme-linked immunosorbent assay. The expressions of collagen, BMP-2 and osteopontin were determined in tibia to clarify the bone anabolic effects of Osteo-F in osteoporosis. RESULTS The levels of BMD in both of fourth to sixth LV and femur were significantly increased by Osteo-F treatment in OVX mice. Bone mineral content (BMC) was also elevated in Osteo-F-treated LV and femoral bone tissues. In addition, serum osteocalcin was markedly increased by Osteo-F in osteoporotic mice. Serum ALP and bALP levels were neutralized in Osteo-F 90 mg/kg-administered mice. Furthermore, Osteo-F treatment dramatically increased the mRNA expressions of collagen type I, BMP-2 and OPN in tibial bone specimens. CONCLUSIONS Osteo-F ameliorated bone loss by increasing bone forming molecules including BMP-2 and OPN in osteoporosis. Osteo-F, a newly developed herbal formula, may be an alternative material for the management of osteoporosis with bone anabolic effects.
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Affiliation(s)
- Haesu Lee
- BOINBIO Convergence Co., Ltd, Seoulbioherb, 117-3 Hoegi-ro, Dongdaemun-gu, Seoul, 02455, Republic of Korea; Department of Convergence Korean Medical Science, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Mi Hye Kim
- Department of Convergence Korean Medical Science, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - La Yoon Choi
- Department of Convergence Korean Medical Science, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Woong Mo Yang
- Department of Convergence Korean Medical Science, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea.
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22
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Cho YD, Kim WJ, Kim S, Ku Y, Ryoo HM. Surface Topography of Titanium Affects Their Osteogenic Potential through DNA Methylation. Int J Mol Sci 2021; 22:2406. [PMID: 33673700 PMCID: PMC7957554 DOI: 10.3390/ijms22052406] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 01/14/2023] Open
Abstract
It is widely accepted that sandblasted/large-grit/acid-etched (SLA) surfaces of titanium (Ti) have a higher osteogenic potential than machined ones. However, most studies focused on differential gene expression without elucidating the underlying mechanism for this difference. The aim of this study was to evaluate how the surface roughness of dental Ti implants affects their osteogenic potential. Mouse preosteoblast MC3T3-E1 cells were seeded on machined and SLA Ti discs. The cellular activities of the discs were analyzed using confocal laser scanning microscopy, proliferation assays, and real-time polymerase chain reaction (PCR). DNA methylation was evaluated using a methylation-specific PCR. The cell morphology was slightly different between the two types of surfaces. While cellular proliferation was slightly greater on the machined surfaces, the osteogenic response of the SLA surfaces was superior, and they showed increased alkaline phosphatase (Alp) activity and higher bone marker gene expression levels (Type I collagen, Alp, and osteocalcin). The degree of DNA methylation on the Alp gene was lower on the SLA surfaces than on the machined surfaces. DNA methyltransferase inhibitor stimulated the Alp gene expression on the machined surfaces, similar to the SLA surfaces. The superior osteogenic potential of the SLA surfaces can be attributed to a different epigenetic landscape, specifically, the DNA methylation of Alp genes. This finding offers novel insights into epigenetics to supplement genetics and raises the possibility of using epidrugs as potential therapeutic targets to enhance osteogenesis on implant surfaces.
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Affiliation(s)
- Young-Dan Cho
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, and Seoul National University Dental Hospital, Seoul 03080, Korea; (Y.-D.C.); (S.K.); (Y.K.)
| | - Woo-Jin Kim
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 08826, Korea;
| | - Sungtae Kim
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, and Seoul National University Dental Hospital, Seoul 03080, Korea; (Y.-D.C.); (S.K.); (Y.K.)
| | - Young Ku
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, and Seoul National University Dental Hospital, Seoul 03080, Korea; (Y.-D.C.); (S.K.); (Y.K.)
| | - Hyun-Mo Ryoo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 08826, Korea;
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23
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Peng S, Shi S, Tao G, Li Y, Xiao D, Wang L, He Q, Cai X, Xiao J. JKAMP inhibits the osteogenic capacity of adipose-derived stem cells in diabetic osteoporosis by modulating the Wnt signaling pathway through intragenic DNA methylation. Stem Cell Res Ther 2021; 12:120. [PMID: 33579371 PMCID: PMC7881648 DOI: 10.1186/s13287-021-02163-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/12/2021] [Indexed: 02/08/2023] Open
Abstract
Background Diabetic osteoporosis (DOP) is a systemic metabolic bone disease caused by diabetes mellitus (DM). Adipose-derived stem cells (ASCs) play an important role in bone regeneration. Our previous study confirmed that ASCs from DOP mice (DOP-ASCs) have a lower osteogenesis potential compared with control ASCs (CON-ASCs). However, the cause of this poor osteogenesis has not been elucidated. Therefore, this study investigated the underlying mechanism of the decline in the osteogenic potential of DOP-ASCs from the perspective of epigenetics and explored methods to enhance their osteogenic capacity. Methods The expression level of JNK1-associated membrane protein (JKAMP) and degree of DNA methylation in CON-ASCs and DOP-ASCs were measured by mRNA expression profiling and MeDIP sequencing, respectively. JKAMP small interfering RNA (siRNA) and a Jkamp overexpression plasmid were used to assess the role of JKAMP in osteogenic differentiation of CON-ASCs and DOP-ASCs. Immunofluorescence, qPCR, and western blotting were used to measure changes in expression of Wnt signaling pathway-related genes and osteogenesis-related molecules after osteogenesis induction. Alizarin red and ALP staining was used to confirm the osteogenic potential of stem cells. Bisulfite-specific PCR (BSP) was used to detect JKAMP methylation degree. Results Expression of JKAMP and osteogenesis-related molecules (RUNX2 and OPN) in DOP-ASCs was decreased significantly in comparison with CON-ASCs. JKAMP silencing inhibited the Wnt signaling pathway and reduced the osteogenic ability of CON-ASCs. Overexpression of JKAMP in DOP-ASCs rescued the impaired osteogenic capacity caused by DOP. Moreover, JKAMP in DOP-ASCs contained intragenic DNA hypermethylated regions related to the downregulation of JKAMP expression. Conclusions Intragenic DNA methylation inhibits the osteogenic ability of DOP-ASCs by suppressing expression of JKAMP and the Wnt signaling pathway. This study shows an epigenetic explanation for the reduced osteogenic ability of DOP-ASCs and provides a potential therapeutic target to prevent and treat osteoporosis.
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Affiliation(s)
- Shuanglin Peng
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.,National Key Clinical Specialty, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Sirong Shi
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Gang Tao
- Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Yanjing Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Dexuan Xiao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Lang Wang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qing He
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Jingang Xiao
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China. .,National Key Clinical Specialty, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China. .,Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China. .,Department of Oral Implantology, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China.
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24
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Xu F, Li W, Yang X, Na L, Chen L, Liu G. The Roles of Epigenetics Regulation in Bone Metabolism and Osteoporosis. Front Cell Dev Biol 2021; 8:619301. [PMID: 33569383 PMCID: PMC7868402 DOI: 10.3389/fcell.2020.619301] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/31/2020] [Indexed: 12/17/2022] Open
Abstract
Osteoporosis is a metabolic disease characterized by decreased bone mineral density and the destruction of bone microstructure, which can lead to increased bone fragility and risk of fracture. In recent years, with the deepening of the research on the pathological mechanism of osteoporosis, the research on epigenetics has made significant progress. Epigenetics refers to changes in gene expression levels that are not caused by changes in gene sequences, mainly including DNA methylation, histone modification, and non-coding RNAs (lncRNA, microRNA, and circRNA). Epigenetics play mainly a post-transcriptional regulatory role and have important functions in the biological signal regulatory network. Studies have shown that epigenetic mechanisms are closely related to osteogenic differentiation, osteogenesis, bone remodeling and other bone metabolism-related processes. Abnormal epigenetic regulation can lead to a series of bone metabolism-related diseases, such as osteoporosis. Considering the important role of epigenetic mechanisms in the regulation of bone metabolism, we mainly review the research progress on epigenetic mechanisms (DNA methylation, histone modification, and non-coding RNAs) in the osteogenic differentiation and the pathogenesis of osteoporosis to provide a new direction for the treatment of bone metabolism-related diseases.
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Affiliation(s)
- Fei Xu
- College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Collaborative Innovation Center, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Wenhui Li
- Collaborative Innovation Center, Shanghai University of Medicine and Health Sciences, Shanghai, China
- College of Clinical Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Xiao Yang
- Traditional Chinese Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lixin Na
- Collaborative Innovation Center, Shanghai University of Medicine and Health Sciences, Shanghai, China
- College of Public Health, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Linjun Chen
- College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Guobin Liu
- Traditional Chinese Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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25
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Dai X, Bui DS, Perret JL, Lowe AJ, Frith PA, Bowatte G, Thomas PS, Giles GG, Hamilton GS, Tsimiklis H, Hui J, Burgess J, Win AK, Abramson MJ, Walters EH, Dharmage SC, Lodge CJ. Exposure to household air pollution over 10 years is related to asthma and lung function decline. Eur Respir J 2021; 57:13993003.00602-2020. [PMID: 32943407 DOI: 10.1183/13993003.00602-2020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 08/07/2020] [Indexed: 12/24/2022]
Abstract
INTRODUCTION We investigated if long-term household air pollution (HAP) is associated with asthma and lung function decline in middle-aged adults, and whether these associations were modified by glutathione S-transferase (GST) gene variants, ventilation and atopy. MATERIALS AND METHODS Prospective data on HAP (heating, cooking, mould and smoking) and asthma were collected in the Tasmanian Longitudinal Health Study (TAHS) at mean ages 43 and 53 years (n=3314). Subsamples had data on lung function (n=897) and GST gene polymorphisms (n=928). Latent class analysis was used to characterise longitudinal patterns of exposure. Regression models assessed associations and interactions. RESULTS We identified seven longitudinal HAP profiles. Of these, three were associated with persistent asthma, greater lung function decline and % reversibility by age 53 years compared with the "Least exposed" reference profile for those who used reverse-cycle air conditioning, electric cooking and no smoking. The "All gas" (OR 2.64, 95% CI 1.22-5.70), "Wood heating/smoking" (OR 2.71, 95% CI 1.21-6.05) and "Wood heating/gas cooking" (OR 2.60, 95% CI 1.11-6.11) profiles were associated with persistent asthma, as well as greater lung function decline and % reversibility. Participants with the GSTP1 Ile/Ile genotype were at a higher risk of asthma or greater lung function decline when exposed compared with other genotypes. Exhaust fan use and opening windows frequently may reduce the adverse effects of HAP produced by combustion heating and cooking on current asthma, presumably through increasing ventilation. CONCLUSIONS Exposures to wood heating, gas cooking and heating, and tobacco smoke over 10 years increased the risks of persistent asthma, lung function decline and % reversibility, with evidence of interaction by GST genes and ventilation.
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Affiliation(s)
- Xin Dai
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia
| | - Dinh S Bui
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia
| | - Jennifer L Perret
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia
| | - Adrian J Lowe
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia
| | - Peter A Frith
- College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Gayan Bowatte
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia.,National Institute of Fundamental Studies, Kandy, Sri Lanka.,Dept of Basic Sciences, Faculty of Allied Health Sciences, University of Peradeniya, Peradeniya, Sri Lanka
| | - Paul S Thomas
- Inflammation and Infection Research, Faculty of Medicine, University of New South Wales, Randwick, Australia
| | - Graham G Giles
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia.,Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Australia
| | - Garun S Hamilton
- Dept of Lung and Sleep Medicine, Monash Health, Melbourne, Australia.,School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Helen Tsimiklis
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - Jennie Hui
- The PathWest Laboratory Medicine of West Australia, Perth, Australia
| | - John Burgess
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia
| | - Aung K Win
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia.,University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, Parkville, Australia.,Genetic Medicine, Royal Melbourne Hospital, Parkville, Australia
| | - Michael J Abramson
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - E Haydn Walters
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia.,School of Medicine, University of Tasmania, Hobart, Australia
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia .,Equal senior authors
| | - Caroline J Lodge
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia.,Equal senior authors
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Gomathi K, Akshaya N, Srinaath N, Rohini M, Selvamurugan N. Histone acetyl transferases and their epigenetic impact on bone remodeling. Int J Biol Macromol 2020; 170:326-335. [PMID: 33373635 DOI: 10.1016/j.ijbiomac.2020.12.173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/22/2020] [Accepted: 12/22/2020] [Indexed: 12/13/2022]
Abstract
Bone remodeling is a complex event that maintains bone homeostasis. The epigenetic mechanism of the regulation of bone remodeling has been a major research focus over the past decades. Histone acetylation is an influential post-translational modification in chromatin architecture. Acetylation affects chromatin structure by offering binding signals for reader proteins that harbor acetyl-lysine recognition domains. This review summarizes recent data of histone acetylation in bone remodeling. The crux of this review is the functional role of histone acetyltransferases, the key promoters of histone acetylation. The functional regulation of acetylation via noncoding RNAs in bone remodeling is also discussed. Understanding the principles governing histone acetylation in bone remodeling would lead to the development of better epigenetic therapies for bone diseases.
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Affiliation(s)
- K Gomathi
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - N Akshaya
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - N Srinaath
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - M Rohini
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - N Selvamurugan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India.
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27
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Zhang B, Huo S, Cen X, Pan X, Huang X, Zhao Z. circAKT3 positively regulates osteogenic differentiation of human dental pulp stromal cells via miR-206/CX43 axis. Stem Cell Res Ther 2020; 11:531. [PMID: 33298186 PMCID: PMC7726914 DOI: 10.1186/s13287-020-02058-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/27/2020] [Indexed: 02/07/2023] Open
Abstract
Background Human dental pulp stromal cells (hDPSCs) are promising sources of mesenchymal stem cells (MSCs) for bone tissue regeneration. Circular RNAs (circRNAs) have been demonstrated to play critical roles in stem cell osteogenic differentiation. Herein, we aimed to investigate the role of circAKT3 during osteogenesis of hDPSCs and the underlying mechanisms of its function. Methods We performed circRNA sequencing to investigate the expression profiles of circular RNAs during osteogenesis of hDPSCs. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was performed to detect the expression pattern of circAKT3 and miR-206 in hDPSCs during osteogenesis. We knocked down circAKT3 and interfered the expression of miR-206 to verify their regulatory role in hDPSC osteogenesis. We detected hDPSCs mineralization by alkaline phosphatase (ALP) and Alizarin Red S (ARS) staining and used dual-luciferase reporter assay to validate the direct binding between circAKT3 and miR-206. To investigate in vivo mineralization, we performed subcutaneous transplantation in nude mice and used hematoxylin and eosin, Masson’s trichrome, and immunohistochemistry staining. Results Totally, 86 circRNAs were differentially expressed during hDPSC osteogenesis, in which 29 were downregulated while 57 were upregulated. circAKT3 was upregulated while miR-206 was downregulated during hDPSC osteogenesis. Knockdown of circAKT3 inhibited ALP/ARS staining and expression levels of osteogenic genes. circAKT3 directly interacted with miR-206, and the latter one suppressed osteogenesis of hDPSCs. Silencing miR-206 partially reversed the inhibitory effect of circAKT3 knockdown on osteogenesis. Connexin 43 (CX43), which positively regulates osteogenesis of stem cells, was predicted as a target of miR-206, and overexpression or knockdown of miR-206 could correspondingly decrease and increase the expression of CX43. In vivo study showed knockdown of circAKT3 suppressed the formation of mineralized nodules and expression of osteogenic proteins. Conclusion During osteogenesis of hDPSCs, circAKT3 could function as a positive regulator by directly sponging miR-206 and arresting the inhibitive effect of miR-206 on CX43 expression. Supplementary information The online version contains supplementary material available at 10.1186/s13287-020-02058-y.
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Affiliation(s)
- Bo Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, People's Republic of China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section, South Renmin Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Sibei Huo
- Department of Stomatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders (Chongqing), Chongqing, People's Republic of China
| | - Xiao Cen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, People's Republic of China.,Department of Temporomandibular Joint, West China Hospital of Stomatology, Sichuan University, Chengdu, People's Republic of China
| | - Xuefeng Pan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, People's Republic of China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section, South Renmin Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Xinqi Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, People's Republic of China. .,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section, South Renmin Road, Chengdu, 610041, Sichuan, People's Republic of China.
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, People's Republic of China. .,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section, South Renmin Road, Chengdu, 610041, Sichuan, People's Republic of China.
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Comprehensive Analysis of Differentially Expressed Circular RNAs in Patients with Senile Osteoporotic Vertebral Compression Fracture. BIOMED RESEARCH INTERNATIONAL 2020; 2020:4951251. [PMID: 33083467 PMCID: PMC7556071 DOI: 10.1155/2020/4951251] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/18/2020] [Accepted: 08/24/2020] [Indexed: 12/21/2022]
Abstract
Aim Circular RNAs (circRNAs) have been found to contribute to the regulation of many diseases and are abundantly expressed in various organisms. The present study is aimed at systematically characterizing the circRNA expression profiles in patients with senile osteoporotic vertebral compression fracture (OVCF) and predicting the potential functions of the regulatory networks correlated with these differentially expressed circRNAs. Methods The circRNA expression profile in patients with senile OVCF was explored by using RNA sequencing. The prediction of the enriched signaling pathways and circRNA-miRNA networks was conducted by bioinformatics analysis. Real-time quantitative PCR was used to validate the selected differentially expressed circRNAs from 20 patients with senile OVCF relative to 20 matched healthy controls. Results A total of 884 differentially expressed circRNAs were identified, of which 554 were upregulated and 330 were downregulated. The top 15 signaling pathways associated with these differentially expressed circRNAs were predicted. The result of qRT-PCR of the selected circRNAs was consistent with RNA sequencing. Conclusions CircRNAs are differentially expressed in patients with senile OVCF, which might contribute to the pathophysiological mechanism of senile osteoporosis.
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Circulating Long Non-Coding RNA GAS5 Is Overexpressed in Serum from Osteoporotic Patients and Is Associated with Increased Risk of Bone Fragility. Int J Mol Sci 2020; 21:ijms21186930. [PMID: 32967315 PMCID: PMC7554802 DOI: 10.3390/ijms21186930] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 12/20/2022] Open
Abstract
Osteoporosis (OP) is a multifactorial disorder in which environmental factors along with genetic variants and epigenetic mechanisms have been implicated. Long non-coding RNAs (lncRNAs) have recently emerged as important regulators of bone metabolism and OP aetiology. In this study, we analyzed the expression level and the genetic association of lncRNA GAS5 in OP patients compared to controls. Quantitative RT-PCR analysis of GAS5 was performed on the serum of 56 OP patients and 28 healthy individuals. OP subjects were divided into three groups of analysis: 29 with fragility fractures of lumbar spine (OP_VF), 14 with fragility fractures of femoral neck (OP_FF) and 13 without fractures (OP_WF). Genotyping of the rs145204276 insertion/deletion polymorphism has also been performed by Restriction fragment length polymorphism (RFLP) and direct sequencing analyses. Expression of circulating GAS5 is significantly increased in OP patients compared to controls (p < 0.01), with a statistically higher significance in fractured OP individuals vs. healthy subjects (p < 0.001). No statistically significant change was found in female OP patients; conversely, GAS5 is upregulated in the subgroup of fractured OP women sera (p < 0.01) and in all OP males (p < 0.05). Furthermore, a direct correlation between GAS5 expression level and parathyroid hormone (PTH) concentration was found in OP patients (r = 0.2930; p = 0.0389). Genetic analysis of rs145204276 revealed that the deletion allele was correlated with a higher expression of GAS5 in OP patients (0.22 ± 0.02 vs. 0.15 ± 0.01, ** p < 0.01). Our results suggest circulating GAS5 as a putative biomarker for the diagnosis and prognosis of OP and OP-related fractures.
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Fusion Potential of Human Osteoclasts In Vitro Reflects Age, Menopause, and In Vivo Bone Resorption Levels of Their Donors-A Possible Involvement of DC-STAMP. Int J Mol Sci 2020; 21:ijms21176368. [PMID: 32887359 PMCID: PMC7504560 DOI: 10.3390/ijms21176368] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/27/2020] [Accepted: 09/01/2020] [Indexed: 12/28/2022] Open
Abstract
It is well established that multinucleation is central for osteoclastic bone resorption. However, our knowledge on the mechanisms regulating how many nuclei an osteoclast will have is limited. The objective of this study was to investigate donor-related variations in the fusion potential of in vitro-generated osteoclasts. Therefore, CD14+ monocytes were isolated from 49 healthy female donors. Donor demographics were compared to the in vivo bone biomarker levels and their monocytes’ ability to differentiate into osteoclasts, showing that: (1) C-terminal telopeptide of type I collagen (CTX) and procollagen type I N-terminal propeptide (PINP) levels increase with age, (2) the number of nuclei per osteoclast in vitro increases with age, and (3) there is a positive correlation between the number of nuclei per osteoclast in vitro and CTX levels in vivo. Furthermore, the expression levels of the gene encoding dendritic cell-specific transmembrane protein (DCSTAMP) of osteoclasts in vitro correlated positively with the number of nuclei per osteoclast, CTX levels in vivo, and donor age. Our results furthermore suggest that these changes in gene expression may be mediated through age-related changes in DNA methylation levels. We conclude that both intrinsic factors and age-induced increase in fusion potential of osteoclasts could be contributing factors for the enhanced bone resorption in vivo, possibly caused by increased expression levels of DCSTAMP.
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Nuclear mechanosensing controls MSC osteogenic potential through HDAC epigenetic remodeling. Proc Natl Acad Sci U S A 2020; 117:21258-21266. [PMID: 32817542 PMCID: PMC7474590 DOI: 10.1073/pnas.2006765117] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cells sense mechanical cues from the extracellular matrix to regulate cellular behavior and maintain tissue homeostasis. The nucleus has been implicated as a key mechanosensor and can directly influence chromatin organization, epigenetic modifications, and gene expression. Dysregulation of nuclear mechanosensing has been implicated in several diseases, including bone degeneration. Here, we exploit photostiffening hydrogels to manipulate nuclear mechanosensing in human mesenchymal stem cells (hMSCs) in vitro. Results show that hMSCs respond to matrix stiffening by increasing nuclear tension and causing an increase in histone acetylation via deactivation of histone deacetylases (HDACs). This ultimately induces osteogenic fate commitment. Disrupting nuclear mechanosensing by disconnecting the nucleus from the cytoskeleton up-regulates HDACs and prevents osteogenesis. Resetting HDAC activity back to healthy levels rescues the epigenetic and osteogenic response in hMSCs with pathological nuclear mechanosensing. Notably, bone from patients with osteoarthritis displays similar defective nuclear mechanosensing. Collectively, our results reveal that nuclear mechanosensing controls hMSC osteogenic potential mediated by HDAC epigenetic remodeling and that this cellular mechanism is likely relevant to bone-related diseases.
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Han S, Kuang M, Sun C, Wang H, Wang D, Liu Q. Circular RNA hsa_circ_0076690 acts as a prognostic biomarker in osteoporosis and regulates osteogenic differentiation of hBMSCs via sponging miR-152. Aging (Albany NY) 2020; 12:15011-15020. [PMID: 32717724 PMCID: PMC7425508 DOI: 10.18632/aging.103560] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 06/04/2020] [Indexed: 05/15/2023]
Abstract
OBJECTIVE Osteoporosis is the most common skeletal disease world-wide. The aim of this study is to identify potential circRNA biomarkers for osteoporosis diagnosis and treatment, as well as their roles in regulating osteogenic differentiation. RESULTS Hsa_circ_0076690 expression was significantly decreased in osteoporosis patients compared to control and showed an acceptable diagnostic value in clinical samples. Subsequently, hsa_circ_0076690 was identified to act as a sponge of miR-152. The expression of hsa_circ_0076690 was gradually increased during osteogenic differentiation while miR-152 showed a decreased expression trend. Moreover, osteogenic differentiation was promoted by hsa_circ_0076690 over-expression and remain unchanged by miR-152/hsa_circ_0076690 co-overexpression. CONCLUSIONS In conclusion, our study revealed that hsa_circ_0076690 may act as a potential diagnostic biomarker for osteoporosis patients and hsa_circ_0076690 could regulate osteogenic differentiation of hBMSCs via sponging miR-152. MATERIALS AND METHODS A total of 114 participants were enrolled in this study with ethics approvals. CircRNAs were identified by means of RNA-sequencing and qRT-PCR experiment. The clinical significance was measured by ROC curve analysis. Target relationship was validated by luciferase reporter assay. The osteogenic-associated biomarkers and ALP activity were detected by western blots.
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Affiliation(s)
- Shijie Han
- Department of Orthopedics, The Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, PR China
| | - Mingjie Kuang
- Department of Orthopedics, The Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, PR China
| | - Chao Sun
- Department of Orthopedics, The Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, PR China
| | - Haifeng Wang
- Department of Orthopedics, The Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, PR China
| | - Dachuan Wang
- Department of Orthopedics, The Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, PR China
| | - Qian Liu
- Department of Pain, Qilu Hospital of Shandong University, Jinan 250012, Sahndong, PR China
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Kanakis I, Alameddine M, Scalabrin M, van 't Hof RJ, Liloglou T, Ozanne SE, Goljanek-Whysall K, Vasilaki A. Low protein intake during reproduction compromises the recovery of lactation-induced bone loss in female mouse dams without affecting skeletal muscles. FASEB J 2020; 34:11844-11859. [PMID: 32652768 DOI: 10.1096/fj.202001131r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/10/2020] [Accepted: 06/22/2020] [Indexed: 12/20/2022]
Abstract
Lactation-induced bone loss occurs due to high calcium requirements for fetal growth but skeletal recovery is normally achieved promptly postweaning. Dietary protein is vital for fetus and mother but the effects of protein undernutrition on the maternal skeleton and skeletal muscles are largely unknown. We used mouse dams fed with normal (N, 20%) or low (L, 8%) protein diet during gestation and lactation and maintained on the same diets (NN, LL) or switched from low to normal (LN) during a 28 d skeletal restoration period post lactation. Skeletal muscle morphology and neuromuscular junction integrity was not different between any of the groups. However, dams fed the low protein diet showed extensive bone loss by the end of lactation, followed by full skeletal recovery in NN dams, partial recovery in LN and poor bone recovery in LL dams. Primary osteoblasts from low protein diet fed mice showed decreased in vitro bone formation and decreased osteogenic marker gene expression; promoter methylation analysis by pyrosequencing showed no differences in Bmpr1a, Ptch1, Sirt1, Osx, and Igf1r osteoregulators, while miR-26a, -34a, and -125b expression was found altered in low protein fed mice. Therefore, normal protein diet is indispensable for maternal musculoskeletal health during the reproductive period.
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Affiliation(s)
- Ioannis Kanakis
- Institute of Life Course and Medical Sciences, The MRC - Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), University of Liverpool, Liverpool, UK
| | - Moussira Alameddine
- Institute of Life Course and Medical Sciences, The MRC - Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), University of Liverpool, Liverpool, UK
| | - Mattia Scalabrin
- Institute of Life Course and Medical Sciences, The MRC - Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), University of Liverpool, Liverpool, UK
| | - Rob J van 't Hof
- Institute of Life Course and Medical Sciences, The MRC - Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), University of Liverpool, Liverpool, UK
| | - Triantafillos Liloglou
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, UK
| | - Susan E Ozanne
- MRC Metabolic Diseases Unit, Metabolic Research Laboratories, University of Cambridge, Cambridge, UK
| | - Katarzyna Goljanek-Whysall
- Institute of Life Course and Medical Sciences, The MRC - Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), University of Liverpool, Liverpool, UK.,Department of Physiology, School of Medicine, NUI Galway, Galway, Ireland
| | - Aphrodite Vasilaki
- Institute of Life Course and Medical Sciences, The MRC - Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), University of Liverpool, Liverpool, UK
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Møller AMJ, Delaissé JM, Olesen JB, Madsen JS, Canto LM, Bechmann T, Rogatto SR, Søe K. Aging and menopause reprogram osteoclast precursors for aggressive bone resorption. Bone Res 2020; 8:27. [PMID: 32637185 PMCID: PMC7329827 DOI: 10.1038/s41413-020-0102-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/06/2020] [Accepted: 04/07/2020] [Indexed: 12/17/2022] Open
Abstract
Women gradually lose bone from the age of ~35 years, but around menopause, the rate of bone loss escalates due to increasing bone resorption and decreasing bone formation levels, rendering these individuals more prone to developing osteoporosis. The increased osteoclast activity has been linked to a reduced estrogen level and other hormonal changes. However, it is unclear whether intrinsic changes in osteoclast precursors around menopause can also explain the increased osteoclast activity. Therefore, we set up a protocol in which CD14+ blood monocytes were isolated from 49 female donors (40-66 years old). Cells were differentiated into osteoclasts, and data on differentiation and resorption activity were collected. Using multiple linear regression analyses combining in vitro and in vivo data, we found the following: (1) age and menopausal status correlate with aggressive osteoclastic bone resorption in vitro; (2) the type I procollagen N-terminal propeptide level in vivo inversely correlates with osteoclast resorption activity in vitro; (3) the protein level of mature cathepsin K in osteoclasts in vitro increases with age and menopause; and (4) the promoter of the gene encoding the dendritic cell-specific transmembrane protein is less methylated with age. We conclude that monocytes are "reprogrammed" in vivo, allowing them to "remember" age, the menopausal status, and the bone formation status in vitro, resulting in more aggressive osteoclasts. Our discovery suggests that this may be mediated through DNA methylation. We suggest that this may have clinical implications and could contribute to understanding individual differences in age- and menopause-induced bone loss.
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Affiliation(s)
- Anaïs Marie Julie Møller
- Clinical Cell Biology, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, 5230 Odense M, Denmark
- Department of Clinical Biochemistry and Immunology, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
| | - Jean-Marie Delaissé
- Clinical Cell Biology, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, 5230 Odense M, Denmark
- Clinical Cell Biology, Department of Pathology, Odense University Hospital, 5000 Odense C, Denmark
- Department of Clinical Research, University of Southern Denmark, 5230 Odense M, Denmark
- Department of Molecular Medicine, University of Southern Denmark, 5230 Odense M, Denmark
| | - Jacob Bastholm Olesen
- Clinical Cell Biology, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
- Clinical Cell Biology, Department of Pathology, Odense University Hospital, 5000 Odense C, Denmark
| | - Jonna Skov Madsen
- Department of Regional Health Research, University of Southern Denmark, 5230 Odense M, Denmark
- Department of Clinical Biochemistry and Immunology, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
| | - Luisa Matos Canto
- Department of Clinical Genetics, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
| | - Troels Bechmann
- Department of Regional Health Research, University of Southern Denmark, 5230 Odense M, Denmark
- Department of Oncology, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
| | - Silvia Regina Rogatto
- Department of Regional Health Research, University of Southern Denmark, 5230 Odense M, Denmark
- Department of Clinical Genetics, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
| | - Kent Søe
- Clinical Cell Biology, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, 5230 Odense M, Denmark
- Clinical Cell Biology, Department of Pathology, Odense University Hospital, 5000 Odense C, Denmark
- Department of Clinical Research, University of Southern Denmark, 5230 Odense M, Denmark
- Department of Molecular Medicine, University of Southern Denmark, 5230 Odense M, Denmark
- OPEN, Odense Patient data Explorative Network, Odense University Hospital, 5000 Odense C, Denmark
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BMP9 is a potential therapeutic agent for use in oral and maxillofacial bone tissue engineering. Biochem Soc Trans 2020; 48:1269-1285. [PMID: 32510140 DOI: 10.1042/bst20200376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/08/2020] [Accepted: 05/15/2020] [Indexed: 02/07/2023]
Abstract
Oral and maxillofacial surgery is often challenging due to defective bone healing owing to the microbial environment of the oral cavity, the additional involvement of teeth and esthetic concerns. Insufficient bone volume as a consequence of aging and some oral and maxillofacial surgical procedures, such as tumor resection of the jaw, may further impact facial esthetics and cause the failure of certain procedures, such as oral and maxillofacial implantation. Bone morphogenetic protein (BMP) 9 (BMP9) is one of the most effective BMPs to induce the osteogenic differentiation of different stem cells. A large cross-talk network that includes the BMP9, Wnt/β, Hedgehog, EGF, TGF-β and Notch signaling pathways finely regulates osteogenesis induced by BMP9. Epigenetic control during BMP9-induced osteogenesis is mainly dependent on histone deacetylases (HDACs), microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), which adds another layer of complexity. As a result, all these factors work together to orchestrate the molecular and cellular events underlying BMP9-related tissue engineering. In this review, we summarize our current understanding of the SMAD-dependent and SMAD-independent BMP9 pathways, with a particular focus on cross-talk and cross-regulation between BMP9 and other major signaling pathways in BMP9-induced osteogenesis. Furthermore, recently discovered epigenetic regulation of BMP9 pathways and the molecular and cellular basis of the application of BMP9 in tissue engineering in current oral and maxillofacial surgery and other orthopedic-related clinical settings are also discussed.
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Hart DA, Zernicke RF. Optimal Human Functioning Requires Exercise Across the Lifespan: Mobility in a 1g Environment Is Intrinsic to the Integrity of Multiple Biological Systems. Front Physiol 2020; 11:156. [PMID: 32174843 PMCID: PMC7056746 DOI: 10.3389/fphys.2020.00156] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/12/2020] [Indexed: 12/14/2022] Open
Abstract
It is widely acknowledged that achieving and maintaining a healthier lifestyle can be enhanced through regular participation in sport and physical activity. Coevally, a growing number of health professionals regard exercise as a legitimate intervention strategy for those who have lost their health. Exercise has been shown to be effective for overweight or obese individuals, who are at risk to lose their health due to development of type II diabetes, cardiovascular disease, as well as, infiltration of muscles, bone and other organs with fat, so it can be considered medicine. However, exercise and associated mobility likely also have a strong prevention component that can effectively contribute to the maintenance of the integrity of multiple biological systems for those who do not have overt risk factors or ongoing disease. While prevention is preferred over intervention in the context of disease, it is clear that exercise and associated mobility, generally, can be an effective influence, although overtraining and excessive loading can be deleterious to health. The basis for the generally positive influence of exercise likely lies in the fact that many of our physiological systems are designed to function in the mechanically dynamic and active 1g environment of Earth (e.g., muscles, cartilage, ligaments, tendons, bones, and cardiovascular system, and neuro-cognitive function), and nearly all these systems subscribe to the "use it or lose it" paradigm. This conclusion is supported by the changes observed over the more than 50 years of space flight and exposure to microgravity conditions. Therefore, the premise advanced is: "exercise is preventative for loss of health due to age-related decline in the integrity of several physiological systems via constant reinforcement of those systems, and thus, optimal levels of exercise and physical activity are endemic to, essential for, and intrinsic to optimal health and wellbeing."
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Affiliation(s)
- David A. Hart
- Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
- McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, Canada
- Department of Surgery, University of Calgary, Calgary, AB, Canada
- Alberta Health Services, Bone and Joint Health Strategic Clinical Network, Edmonton, AB, Canada
| | - Ronald F. Zernicke
- Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
- Department of Surgery, University of Calgary, Calgary, AB, Canada
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Ying J, Xu T, Wang C, Jin H, Tong P, Guan J, Abu-Amer Y, O’Keefe R, Shen J. Dnmt3b ablation impairs fracture repair through upregulation of Notch pathway. JCI Insight 2020; 5:131816. [PMID: 32051335 PMCID: PMC7098799 DOI: 10.1172/jci.insight.131816] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 12/26/2019] [Indexed: 12/13/2022] Open
Abstract
We previously established that DNA methyltransferase 3b (Dnmt3b) is the sole Dnmt responsive to fracture repair and that Dnmt3b expression is induced in progenitor cells during fracture repair. In the current study, we confirmed that Dnmt3b ablation in mesenchymal progenitor cells (MPCs) resulted in impaired endochondral ossification, delayed fracture repair, and reduced mechanical strength of the newly formed bone in Prx1-Cre;Dnmt3bf/f (Dnmt3bPrx1) mice. Mechanistically, deletion of Dnmt3b in MPCs led to reduced chondrogenic and osteogenic differentiation in vitro. We further identified Rbpjκ as a downstream target of Dnmt3b in MPCs. In fact, we located 2 Dnmt3b binding sites in the murine proximal Rbpjκ promoter and gene body and confirmed Dnmt3b interaction with the 2 binding sites by ChIP assays. Luciferase assays showed functional utilization of the Dnmt3b binding sites in murine C3H10T1/2 cells. Importantly, we showed that the MPC differentiation defect observed in Dnmt3b deficiency cells was due to the upregulation of Rbpjκ, evident by restored MPC differentiation upon Rbpjκ inhibition. Consistent with in vitro findings, Rbpjκ blockage via dual antiplatelet therapy reversed the differentiation defect and accelerated fracture repair in Dnmt3bPrx1 mice. Collectively, our data suggest that Dnmt3b suppresses Notch signaling during MPC differentiation and is necessary for normal fracture repair.
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Affiliation(s)
- Jun Ying
- Department of Orthopaedic Surgery, School of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
- Institute of Orthopaedics and Traumatology, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Taotao Xu
- Department of Orthopaedic Surgery, School of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
- Institute of Orthopaedics and Traumatology, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Cuicui Wang
- Department of Orthopaedic Surgery, School of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Hongting Jin
- Institute of Orthopaedics and Traumatology, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Peijian Tong
- Institute of Orthopaedics and Traumatology, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Jianjun Guan
- Department of Biomedical Engineering, School of Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Yousef Abu-Amer
- Department of Orthopaedic Surgery, School of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
- Shriners Hospital for Children, St. Louis, Missouri, USA
| | - Regis O’Keefe
- Department of Orthopaedic Surgery, School of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Jie Shen
- Department of Orthopaedic Surgery, School of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
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Jiang W, Agrawal DK, Boosani CS. Non-coding RNAs as Epigenetic Gene Regulators in Cardiovascular Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1229:133-148. [PMID: 32285409 DOI: 10.1007/978-981-15-1671-9_7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Epigenetic gene regulations can be considered as de-novo initiation of abnormal molecular signaling events whose regulation is otherwise required during normal or specific developmental stages of the organisms. Primarily, three different mechanisms have been identified to participate in epigenetic gene regulations which include, DNA methylation, non-coding RNA species (microRNAs [miRNA], and long non-coding RNAs [LNC-RNA]) and histone modifications. These de-novo epigenetic mechanisms have been associated with altered normal cellular functions which eventually facilitate normal cells to transition into an abnormal phenotype. Among the three modes of regulation, RNA species which are usually considered to be less stable, can be speculated to initiate instant alterations in gene expression compared to DNA methylation or histone modifications. However, LNC-RNAs appear to be more stable in the cells than the other RNA species. Moreover, there is increasing literature which clearly suggests that a single specific LNC-RNA can regulate multiple mechanisms and disease phenotypes. With specific focus on cardiovascular diseases, here we attempt to provide UpToDate information on the functional role of miRNAs and LNC-RNAs. Here we discuss the role of these epigenetic mediators in different components of cardiovascular disease which include physiopathological heart development, athersclerosis, retenosis, diabetic hearts, myocardial infarction, ischemia-reperfusion, heart valve disease, aortic aneurysm, osteogenesis, angiogenesis and hypoxia in the heart. While there is abundant literature support that shows the involvement of many LNC-RNAs and miRNAs in cardiovascular diseases, very few RNA species have been identified which regulate epigenetic mechanisms which is the current focus in this article. Understanding the role of these RNA species in regulating epigenetic mechanisms in different cell types causing cardiovascular disease, would advance the field and promote disease prevention approaches that are aimed to target epigenetic mechanisms.
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Affiliation(s)
- Wanlin Jiang
- Department of Clinical & Translational Research, Western University of Health Sciences, Pomona, CA, USA
| | - Devendra K Agrawal
- Department of Clinical & Translational Research, Western University of Health Sciences, Pomona, CA, USA
| | - Chandra Shekhar Boosani
- Department of Clinical & Translational Research, Western University of Health Sciences, Pomona, CA, USA.
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Chin KY, Pang KL. Skeletal Effects of Early-Life Exposure to Soy Isoflavones-A Review of Evidence From Rodent Models. Front Pediatr 2020; 8:563. [PMID: 33072660 PMCID: PMC7533582 DOI: 10.3389/fped.2020.00563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 08/03/2020] [Indexed: 12/14/2022] Open
Abstract
Isoflavones are dietary phytoestrogens commonly found in soy-based products. The widespread presence of isoflavones in soy infant formula and breast milk may have long-lasting effects on the development of sex hormone-sensitive organs like the skeleton. Animal early-life programming models are suitable for testing the skeletal effects of pre- and neonatal exposure of soy isoflavones. This review aims to collate the impacts of early-life exposure of soy isoflavones as evidenced in animal models. The isoflavones previously studied include daidzein, genistein, or a combination of both. They were administered to rodent pups during the first few days postnatal, but prolonged exposure had also been studied. The skeletal effects were observed when the animals reached sexual maturity or after castration to induce bone loss. In general, neonatal exposure to soy isoflavones exerted beneficial effects on the skeletal system of female rodents, but the effects on male rodents seem to depend on the time of exposure and require further examinations. It might also protect the animals against bone loss due to ovariectomy at adulthood but not upon orchidectomy. The potential benefits of isoflavones on the skeletal system should be interpreted together with its non-skeletal effects in the assessment of its safety and impacts.
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Affiliation(s)
- Kok-Yong Chin
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.,State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji-Med X Clinical Stem Cell Research Center, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kok-Lun Pang
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Raut N, Wicks SM, Lawal TO, Mahady GB. Epigenetic regulation of bone remodeling by natural compounds. Pharmacol Res 2019; 147:104350. [PMID: 31315065 PMCID: PMC6733678 DOI: 10.1016/j.phrs.2019.104350] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 06/27/2019] [Accepted: 07/10/2019] [Indexed: 12/12/2022]
Abstract
Osteoporosis and osteopenia impact more than 54 million Americans, resulting in significant morbidity and mortality. Alterations in bone remodeling are the hallmarks for osteoporosis, and thus the development of novel treatments that will prevent or treat bone diseases would be clinically significant, and improve the quality of life for these patients. Bone remodeling involves the removal of old bone by osteoclasts and the formation of new bone by osteoblasts. This process is tightly coupled, and is essential for the maintenance of bone strength and integrity. Since the osteoclast is the only cell capable of bone resorption, the development of drugs to treat bone disorders has primarily focused on reducing osteoclast differentiation, maturation, and bone resorption mechanisms, and there are few treatments that actually increase bone formation. Evidence from observational, experimental, and clinical studies demonstrate a positive link between naturally occurring compounds and improved indices of bone health. While many natural extracts and compounds are reported to have beneficial effects on bone, only resveratrol, sulforaphane, specific phenolic acids and anthocyanins, have been shown to both increase bone formation and reduce resorption through their effects on the bone epigenome. Each of these compounds alters specific aspects of the bone epigenome to improve osteoblast differentiation, reduce osteoblast apoptosis, improve bone mineralization, and reduce osteoclast differentiation and function. This review focuses on these specific natural compounds and their epigenetic regulation of bone remodeling.
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Affiliation(s)
- Nishikant Raut
- Department of Pharmacy Practice, College of Pharmacy, WHO/PAHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, USA; Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Sheila M Wicks
- Department of Cellular and Molecular Medicine, Rush University, Chicago, IL 60612, USA
| | - Tempitope O Lawal
- Department of Pharmaceutical Microbiology, University of Ibadan, Ibadan, Nigeria
| | - Gail B Mahady
- Department of Pharmacy Practice, College of Pharmacy, WHO/PAHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, USA.
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Barisano G, Bigjahan B, Metting S, Cen S, Amezcua L, Lerner A, Toga AW, Law M. Signal Hyperintensity on Unenhanced T1-Weighted Brain and Cervical Spinal Cord MR Images after Multiple Doses of Linear Gadolinium-Based Contrast Agent. AJNR Am J Neuroradiol 2019; 40:1274-1281. [PMID: 31345942 DOI: 10.3174/ajnr.a6148] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 06/06/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The clinical implications of gadolinium deposition in the CNS are not fully understood, and it is still not known whether gadolinium tends to be retained more in the brain compared with the spinal cord. In this study, we assessed the effects of linear gadolinium-based contrast agents on the T1 signal intensity of 3 cerebral areas (dentate nucleus, globus pallidus, and the less studied substantia nigra) and the cervical spinal cord in a population of patients with MS. MATERIALS AND METHODS A single-center population of 100 patients with MS was analyzed. Patients underwent 2-16 contrast-enhanced MRIs. Fifty patients received ≤5 linear gadolinium injections, and 50 patients had ≥6 injections: Fifty-two patients had both Gd-DTPA and gadobenate dimeglumine injections, and 48 patients received only gadobenate dimeglumine. A quantitative analysis of signal intensity changes was independently performed by 2 readers on the first and last MR imaging scan. The globus pallidus-to-thalamus, substantia nigra-to-midbrain, dentate nucleus-to-middle cerebellar peduncle, and the cervical spinal cord-to-pons signal intensity ratios were calculated. RESULTS An increase of globus pallidus-to-thalamus (mean, +0.0251 ± 0.0432; P < .001), dentate nucleus-to-middle cerebellar peduncle (mean, +0.0266 ± 0.0841; P = .002), and substantia nigra-to-midbrain (mean, +0.0262 ± 0.0673; P < .001) signal intensity ratios after multiple administrations of linear gadolinium-based contrast agents was observed. These changes were significantly higher in patients who received ≥6 injections (P < .001) and positively correlated with the number of injections and the accumulated dose of contrast. No significant changes were detected in the spinal cord (mean, +0.0008 ± 0.0089; P = .400). CONCLUSIONS Patients with MS receiving ≥6 linear gadolinium-based contrast agent injections showed a significant increase in the signal intensity of the globus pallidus, dentate nucleus, and substantia nigra; no detectable changes were observed in the cervical spinal cord.
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Affiliation(s)
- G Barisano
- From the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.) .,Stevens Neuroimaging and Informatics Institute (G.B., B.B., A.W.T., M.L.)
| | - B Bigjahan
- From the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.).,Stevens Neuroimaging and Informatics Institute (G.B., B.B., A.W.T., M.L.)
| | - S Metting
- From the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.)
| | - S Cen
- From the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.)
| | - L Amezcua
- Department of Neurology (L.A.), Keck School of Medicine, University of Southern California, Los Angeles, California
| | - A Lerner
- From the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.)
| | - A W Toga
- Stevens Neuroimaging and Informatics Institute (G.B., B.B., A.W.T., M.L.)
| | - M Law
- From the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.).,Stevens Neuroimaging and Informatics Institute (G.B., B.B., A.W.T., M.L.)
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42
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Letarouilly JG, Broux O, Clabaut A. New insights into the epigenetics of osteoporosis. Genomics 2019; 111:793-798. [DOI: 10.1016/j.ygeno.2018.05.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/26/2018] [Accepted: 05/02/2018] [Indexed: 01/03/2023]
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43
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Human osteogenic differentiation in Space: proteomic and epigenetic clues to better understand osteoporosis. Sci Rep 2019; 9:8343. [PMID: 31171801 PMCID: PMC6554341 DOI: 10.1038/s41598-019-44593-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 05/15/2019] [Indexed: 12/12/2022] Open
Abstract
In the frame of the VITA mission of the Italian Space Agency (ASI), we addressed the problem of Space osteoporosis by using human blood-derived stem cells (BDSCs) as a suitable osteogenic differentiation model. In particular, we investigated proteomic and epigenetic changes in BDSCs during osteoblastic differentiation induced by rapamycin under microgravity conditions. A decrease in the expression of 4 embryonic markers (Sox2, Oct3/4, Nanog and E-cadherin) was found to occur to a larger extent on board the ISS than on Earth, along with an earlier activation of the differentiation process towards the osteogenic lineage. The changes in the expression of 4 transcription factors (Otx2, Snail, GATA4 and Sox17) engaged in osteogenesis supported these findings. We then ascertained whether osteogenic differentiation of BDSCs could depend on epigenetic regulation, and interrogated changes of histone H3 that is crucial in this type of gene control. Indeed, we found that H3K4me3, H3K27me2/3, H3K79me2/3 and H3K9me2/3 residues are engaged in cellular reprogramming that drives gene expression. Overall, we suggest that rapamycin induces transcriptional activation of BDSCs towards osteogenic differentiation, through increased GATA4 and Sox17 that modulate downstream transcription factors (like Runx2), critical for bone formation. Additional studies are warranted to ascertain the possible exploitation of these data to identify new biomarkers and therapeutic targets to treat osteoporosis, not only in Space but also on Earth.
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Kwok AT, Moore JE, Rosas S, Kerr BA, Andrews RN, Nguyen CM, Lee J, Furdui CM, Collins BE, Munley MT, Willey JS. Knee and Hip Joint Cartilage Damage from Combined Spaceflight Hazards of Low-Dose Radiation Less than 1 Gy and Prolonged Hindlimb Unloading. Radiat Res 2019; 191:497-506. [PMID: 30925135 DOI: 10.1667/rr15216.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Reduced weight bearing, and to a lesser extent radiation, during spaceflight have been shown as potential hazards to astronaut joint health. These hazards combined effect to the knee and hip joints are not well defined, particularly with low-dose exposure to radiation. In this study, we examined the individual and combined effects of varying low-dose radiation (≤1 Gy) and reduced weight bearing on the cartilage of the knee and hip joints. C57BL/6J mice (n = 80) were either tail suspended via hindlimb unloading (HLU) or remained full-weight bearing (ground). On day 6, each group was divided and irradiated with 0 Gy (sham), 0.1 Gy, 0.5 Gy or 1.0 Gy (n = 10/group), yielding eight groups: ground-sham; ground-0.1 Gy; ground-0.5 Gy; ground-1.0 Gy; HLU-sham; HLU-0.1 Gy; HLU-0.5 Gy; and HLU-1.0 Gy. On day 30, the hindlimbs, hip cartilage and serum were collected from the mice. Significant differences were identified statistically between treatment groups and the ground-sham control group, but no significant differences were observed between HLU and/or radiation groups. Contrast-enhanced micro-computed tomography (microCECT) demonstrated decrease in volume and thickness at the weight-bearing femoral-tibial cartilage-cartilage contact point in all treatment groups compared to ground-sham. Lower collagen was observed in all groups compared to ground-sham. Circulating serum cartilage oligomeric matrix protein (sCOMP), a biomarker for ongoing cartilage degradation, was increased in all of the irradiated groups compared to ground-sham, regardless of unloading. Mass spectrometry of the cartilage lining the femoral head and subsequent Ingenuity Pathway Analysis (IPA) identified a decrease in cartilage compositional proteins indicative of osteoarthritis. Our findings demonstrate that both individually and combined, HLU and exposure to spaceflight relevant radiation doses lead to cartilage degradation of the knee and hip with expression of an arthritic phenotype. Moreover, early administration of low-dose irradiation (0.1, 0.5 or 1.0 Gy) causes an active catabolic response in cartilage 24 days postirradiation. Further research is warranted with a focus on the prevention of cartilage degradation from long-term periods of reduced weight bearing and spaceflight-relevant low doses and qualities of radiation.
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Affiliation(s)
| | | | - Samuel Rosas
- Departments of a Radiation Oncology.,b Departments of Orthopaedic Surgery
| | | | | | | | - Jingyun Lee
- e Departments of Proteomics and Metabolomics Shared Resource, Comprehensive Cancer Center
| | - Cristina M Furdui
- f Departments of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Boyce E Collins
- g Engineering Research Center for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, North Carolina
| | | | - Jeffrey S Willey
- Departments of a Radiation Oncology.,b Departments of Orthopaedic Surgery
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45
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Yalaev BI, Tyurin AV, Mirgalieva RY, Khusainova RI. The role of DNA methylation in the disorders of bone metabolism. Vavilovskii Zhurnal Genet Selektsii 2019. [DOI: 10.18699/vj19.463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Osteoporosis is one of multifactorial diseases, it develops from interactions between the genetic component and the environment. However, the universal epigenetic markers of osteoporosis are not yet defined. Finding the risk factors will predict the risk of osteoporosis at the preclinical stage, help define the course and severity of the disease, and develop preventive measures based on them to reduce the risk of fractures. Expanding knowledge in the field of bone biology, especially in the genetics of osteoporosis and osteoimmunology, showed that osteoporosis is a disease that occurs not only due to hormonal or mechanical disorders, but also as a clinically and genetically heterogeneous disease, and there are still unknown pathogenetic links in its structure. Decreases in bone mass and matrix mineralization as well as changes in bone microarchitecture can have different pathogenetic patterns of development and, moreover, there are unknown links of the pathogenesis of osteoporosis. It is possible that DNA methylation is one of these links and a mechanism for epigenetic regulation of gene expression. Evidence exists that this mechanism alongside regulatory miRNAs and post-translational modifications makes a significant contribution to the central processes of bone remodeling; however, the results of various studies vary greatly, and, therefore, there is a need to understand the significance of the accumulated data and to make them consistent. The purpose of this review is to compile and systematize data on the role of DNA methylation in bone metabolism in normal and pathological conditions, in the formation of osteoporosis, and to assess achievements and trends in this field of research and technologies for studying DNA methylation.
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Affiliation(s)
- B. I. Yalaev
- Institute of Biochemistry and Genetics of Ufa Science Centre RAS
| | | | | | - R. I. Khusainova
- Institute of Biochemistry and Genetics of Ufa Science Centre RAS; Republican Medical-Genetic Center
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46
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Cheishvili D, Parashar S, Mahmood N, Arakelian A, Kremer R, Goltzman D, Szyf M, Rabbani SA. Identification of an Epigenetic Signature of Osteoporosis in Blood DNA of Postmenopausal Women. J Bone Miner Res 2018; 33:1980-1989. [PMID: 29924424 DOI: 10.1002/jbmr.3527] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/17/2018] [Accepted: 06/06/2018] [Indexed: 12/31/2022]
Abstract
Osteoporosis is one of the most common age-related progressive bone diseases in elderly people. Approximately one in three women and one in five men are predisposed to developing osteoporosis. In postmenopausal women, a reduction in BMD leads to an increased risk of fractures. In the current study, we delineated the DNA methylation signatures in whole blood samples of postmenopausal osteoporotic women. We obtained whole blood DNA from 22 normal women and 22 postmenopausal osteoporotic women (51 to 89 years old) from the Canadian Multicenter Osteoporosis Study (CaMos) cohort. These DNA samples were subjected to Illumina Infinium human methylation 450 K analysis. Illumina 450K raw data were analyzed by Genome Studio software. Analysis of the female participants with early and advanced osteoporosis resulted in the generation of a list of 1233 differentially methylated CpG sites when compared with age-matched normal women. T test, ANOVA, and post hoc statistical analyses were performed, and 77 significantly differentially methylated CpG sites were identified. From the 13 most significant genes, ZNF267, ABLIM2, RHOJ, CDKL5, and PDCD1 were selected for their potential role in bone biology. A weighted polygenic DNA methylation score of these genes predicted osteoporosis at an early stage with high sensitivity and specificity and correlated with measures of bone density. Pyrosequencing analysis of these genes was performed to validate the results obtained from Illumina 450 K methylation analysis. The current study provides proof of principal for the role of DNA methylation in osteoporosis. Using whole blood DNA methylation analysis, women at risk of developing osteoporosis can be identified before a diagnosis of osteoporosis is made using BMD as a screening method. Early diagnosis will help to select patients who might benefit from early therapeutic intervention. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- David Cheishvili
- Department of Pharmacology and Therapeutics, McGill University Health Center, Montreal, QC, Canada
| | - Surabhi Parashar
- Department of Medicine, McGill University Health Center, Montreal, QC, Canada
| | - Niaz Mahmood
- Department of Medicine, McGill University Health Center, Montreal, QC, Canada
| | - Ani Arakelian
- Department of Medicine, McGill University Health Center, Montreal, QC, Canada
| | - Richard Kremer
- Department of Medicine, McGill University Health Center, Montreal, QC, Canada
| | - David Goltzman
- Department of Medicine, McGill University Health Center, Montreal, QC, Canada
| | - Moshe Szyf
- Department of Pharmacology and Therapeutics, McGill University Health Center, Montreal, QC, Canada
| | - Shafaat A Rabbani
- Department of Medicine, McGill University Health Center, Montreal, QC, Canada
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47
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Zhu S, Ehnert S, Rouß M, Häussling V, Aspera-Werz RH, Chen T, Nussler AK. From the Clinical Problem to the Basic Research-Co-Culture Models of Osteoblasts and Osteoclasts. Int J Mol Sci 2018; 19:ijms19082284. [PMID: 30081523 PMCID: PMC6121694 DOI: 10.3390/ijms19082284] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 07/26/2018] [Accepted: 07/31/2018] [Indexed: 12/13/2022] Open
Abstract
Bone tissue undergoes constant remodeling and healing when fracture happens, in order to ensure its structural integrity. In order to better understand open biological and clinical questions linked to various bone diseases, bone cell co-culture technology is believed to shed some light into the dark. Osteoblasts/osteocytes and osteoclasts dominate the metabolism of bone by a multitude of connections. Therefore, it is widely accepted that a constant improvement of co-culture models with both cell types cultured on a 3D scaffold, is aimed to mimic an in vivo environment as closely as possible. Although in recent years a considerable knowledge of bone co-culture models has been accumulated, there are still many open questions. We here try to summarize the actual knowledge and address open questions.
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Affiliation(s)
- Sheng Zhu
- Department of Trauma and Reconstructive Surgery, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany.
| | - Sabrina Ehnert
- Department of Trauma and Reconstructive Surgery, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany.
| | - Marc Rouß
- Department of Trauma and Reconstructive Surgery, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany.
| | - Victor Häussling
- Department of Trauma and Reconstructive Surgery, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany.
| | - Romina H Aspera-Werz
- Department of Trauma and Reconstructive Surgery, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany.
| | - Tao Chen
- Department of Trauma and Reconstructive Surgery, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany.
| | - Andreas K Nussler
- Department of Trauma and Reconstructive Surgery, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany.
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48
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The emerging role of microRNAs in bone remodeling and its therapeutic implications for osteoporosis. Biosci Rep 2018; 38:BSR20180453. [PMID: 29848766 PMCID: PMC6013703 DOI: 10.1042/bsr20180453] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 05/23/2018] [Accepted: 05/29/2018] [Indexed: 01/06/2023] Open
Abstract
Osteoporosis, a common and multifactorial disease, is influenced by genetic factors and environments. However, the pathogenesis of osteoporosis has not been fully elucidated yet. Recently, emerging evidence suggests that epigenetic modifications may be the underlying mechanisms that link genetic and environmental factors with increased risks of osteoporosis and bone fracture. MicroRNA (miRNA), a major category of small noncoding RNA with 20–22 bases in length, is recognized as one important epigenetic modification. It can mediate post-transcriptional regulation of target genes with cell differentiation and apoptosis. In this review, we aimed to profile the role of miRNA in bone remodeling and its therapeutic implications for osteoporosis. A deeper insight into the role of miRNA in bone remodeling and osteoporosis can provide unique opportunities to develop a novel diagnostic and therapeutic approach of osteoporosis.
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Fernandez-Rebollo E, Eipel M, Seefried L, Hoffmann P, Strathmann K, Jakob F, Wagner W. Primary Osteoporosis Is Not Reflected by Disease-Specific DNA Methylation or Accelerated Epigenetic Age in Blood. J Bone Miner Res 2018; 33:356-361. [PMID: 28926142 DOI: 10.1002/jbmr.3298] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 09/14/2017] [Accepted: 09/18/2017] [Indexed: 12/12/2022]
Abstract
Osteoporosis is an age-related metabolic bone disease. Hence, osteoporotic patients might suffer from molecular features of accelerated aging, which is generally reflected by specific age-associated DNA methylation (DNAm) changes. In this study, we analyzed genomewide DNAm profiles of peripheral blood from patients with manifest primary osteoporosis and non-osteoporotic controls. Statistical analysis did not reveal any individual CG dinucleotides (CpG sites) with significant aberrant DNAm in osteoporosis. Subsequently, we analyzed if age-associated DNAm patterns are increased in primary osteoporosis (OP). Using three independent age-predictors we did not find any evidence for accelerated epigenetic age in blood of osteoporotic patients. Taken together, osteoporosis is not reflected by characteristic DNAm patterns of peripheral blood that might be used as biomarker for the disease. The prevalence of osteoporosis is age-associated-but it is not associated with premature epigenetic aging in peripheral blood. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Eduardo Fernandez-Rebollo
- Helmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Medical School, Aachen, Germany.,Institute for Biomedical Technology-Cell Biology, RWTH Aachen University Medical School, Aachen, Germany
| | - Monika Eipel
- Helmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Medical School, Aachen, Germany.,Institute for Biomedical Technology-Cell Biology, RWTH Aachen University Medical School, Aachen, Germany
| | - Lothar Seefried
- Orthopedic Center for Musculoskeletal Research, Orthopedic Department, University of Würzburg, Würzburg, Germany
| | - Per Hoffmann
- Department of Genomics, Institute of Human Genetics, University of Bonn, Bonn, Germany.,Human Genomics Research Group, Department of Biomedicine, University of Basel, Switzerland
| | - Klaus Strathmann
- Institute for Transfusion Medicine, RWTH Aachen University Medical School, Aachen, Germany
| | - Franz Jakob
- Orthopedic Center for Musculoskeletal Research, Orthopedic Department, University of Würzburg, Würzburg, Germany
| | - Wolfgang Wagner
- Helmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Medical School, Aachen, Germany.,Institute for Biomedical Technology-Cell Biology, RWTH Aachen University Medical School, Aachen, Germany
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50
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Curtis EM, Murray R, Titcombe P, Cook E, Clarke-Harris R, Costello P, Garratt E, Holbrook JD, Barton S, Inskip H, Godfrey KM, Bell CG, Cooper C, Lillycrop KA, Harvey NC. Perinatal DNA Methylation at CDKN2A Is Associated With Offspring Bone Mass: Findings From the Southampton Women's Survey. J Bone Miner Res 2017; 32:2030-2040. [PMID: 28419547 PMCID: PMC5528139 DOI: 10.1002/jbmr.3153] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 03/28/2017] [Accepted: 04/07/2017] [Indexed: 12/21/2022]
Abstract
Poor intrauterine and childhood growth has been linked with the risk of osteoporosis in later life, a relationship that may in part be mediated through altered epigenetic regulation of genes. We previously identified a region within the promoter of the long non-coding RNA ANRIL encoded by the CDKN2A locus, at which differential DNA methylation at birth showed correlations with offspring adiposity. Given the common lineage of adipocytes and osteoblasts, we investigated the relationship between perinatal CDKN2A methylation and bone mass at ages 4 and 6 years. Using sodium bisulfite pyrosequencing, we measured the methylation status of the 9 CpGs within this region in umbilical cord samples from discovery (n = 332) and replication (n = 337) cohorts of children from the Southampton Women's Survey, whose bone mass was assessed by dual-energy X-ray absorptiomietry (DXA; Hologic Discovery). Inverse associations were found between perinatal CDKN2A methylation and whole-body minus head bone area (BA), bone mineral content (BMC), and areal bone mineral density (BMD). This was confirmed in replication and combined data sets (all p < 0.01), with each 10% increase in methylation being associated with a decrease in BMC of 4 to 9 g at age 4 years (p ≤ 0.001). Relationships were similar with 6-year bone mass. Functional investigation of the differentially methylated region in the SaOS-2 osteosarcoma cell line showed that transcription factors bound to the identified CpGs in a methylation-specific manner and that CpG mutagenesis modulated ANRIL expression. In conclusion, perinatal methylation at CDKN2A is associated with childhood bone development and has significance for cell function. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Elizabeth M Curtis
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Robert Murray
- Institute of Developmental Sciences, University of Southampton, Southampton, UK
| | - Philip Titcombe
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Eloïse Cook
- Institute of Developmental Sciences, University of Southampton, Southampton, UK
| | | | - Paula Costello
- Institute of Developmental Sciences, University of Southampton, Southampton, UK
| | - Emma Garratt
- Institute of Developmental Sciences, University of Southampton, Southampton, UK
| | - Joanna D Holbrook
- Institute of Developmental Sciences, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK.,Singapore Institute for Clinical Sciences (SICS), A*STAR, Brenner Centre for Molecular Medicine, Singapore
| | - Sheila Barton
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Hazel Inskip
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Keith M Godfrey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.,Institute of Developmental Sciences, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Christopher G Bell
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.,Institute of Developmental Sciences, University of Southampton, Southampton, UK.,Centre for Biological Sciences, University of Southampton, Southampton, UK
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK.,NIHR Oxford Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
| | - Karen A Lillycrop
- Institute of Developmental Sciences, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK.,Centre for Biological Sciences, University of Southampton, Southampton, UK
| | - Nicholas C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
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