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Zhong Y, Zhou X, Pan Z, Zhang J, Pan J. Role of epigenetic regulatory mechanisms in age-related bone homeostasis imbalance. FASEB J 2024; 38:e23642. [PMID: 38690719 DOI: 10.1096/fj.202302665r] [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: 12/24/2023] [Revised: 03/05/2024] [Accepted: 04/22/2024] [Indexed: 05/02/2024]
Abstract
Alterations to the human organism that are brought about by aging are comprehensive and detrimental. Of these, an imbalance in bone homeostasis is a major outward manifestation of aging. In older adults, the decreased osteogenic activity of bone marrow mesenchymal stem cells and the inhibition of bone marrow mesenchymal stem cell differentiation lead to decreased bone mass, increased risk of fracture, and impaired bone injury healing. In the past decades, numerous studies have reported the epigenetic alterations that occur during aging, such as decreased core histones, altered DNA methylation patterns, and abnormalities in noncoding RNAs, which ultimately lead to genomic abnormalities and affect the expression of downstream signaling osteoporosis treatment and promoter of fracture healing in older adults. The current review summarizes the impact of epigenetic regulation mechanisms on age-related bone homeostasis imbalance.
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Affiliation(s)
- Yunyu Zhong
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xueer Zhou
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Zijian Pan
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jiankang Zhang
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jian Pan
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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Li J, Wu J, Xie Y, Yu X. Bone marrow adipocytes and lung cancer bone metastasis: unraveling the role of adipokines in the tumor microenvironment. Front Oncol 2024; 14:1360471. [PMID: 38571500 PMCID: PMC10987778 DOI: 10.3389/fonc.2024.1360471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/08/2024] [Indexed: 04/05/2024] Open
Abstract
Bone is a common site of metastasis for lung cancer. The "seed and soil" hypothesis suggests that the bone marrow microenvironment ("soil") may provide a conducive survival environment for metastasizing tumor cells ("seeds"). The bone marrow microenvironment, comprising a complex array of cells, includes bone marrow adipocytes (BMAs), which constitute about 70% of the adult bone marrow volume and may play a significant role in tumor bone metastasis. BMAs can directly provide energy for tumor cells, promoting their proliferation and migration. Furthermore, BMAs participate in the tumor microenvironment's osteogenesis regulation, osteoclast(OC) regulation, and immune response through the secretion of adipokines, cytokines, and inflammatory factors. However, the precise mechanisms of BMAs in lung cancer bone metastasis remain largely unclear. This review primarily explores the role of BMAs and their secreted adipokines (leptin, adiponectin, Nesfatin-1, Resistin, chemerin, visfatin) in lung cancer bone metastasis, aiming to provide new insights into the mechanisms and clinical treatment of lung cancer bone metastasis.
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Affiliation(s)
- Jian Li
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
- Department of Endocrinology and Metabolism, Shandong Second Provincial General Hospital, Jinan, China
| | - Jialu Wu
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yanni Xie
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
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Di Paola A, Marrapodi MM, Di Martino M, Giliberti G, Di Feo G, Rana D, Ahmed S, Argenziano M, Rossi F, Roberti D. Bone Health Impairment in Patients with Hemoglobinopathies: From Biological Bases to New Possible Therapeutic Strategies. Int J Mol Sci 2024; 25:2902. [PMID: 38474150 DOI: 10.3390/ijms25052902] [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: 12/29/2023] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Hemoglobinopathies are monogenic disorders affecting hemoglobin synthesis. Thalassemia and sickle cell disease (SCD) are considered the two major hemoglobinopathies. Thalassemia is a genetic disorder and one of the major hemoglobinopathies determined by an impairment of globin chain production, which causes an alteration of erythropoiesis, an improvement in hemolysis, and an alteration of iron homoeostasis. In SCD, the mutations are on the β-globin chain of hemoglobin which results in a substitution of glutamic acid by valine with consequent formation of Hemoglobin S (HbS). Several factors are involved in bone metabolism alteration in patients with hemoglobinopathies, among them hormonal deficiency, bone marrow hyperplasia, iron overload, inflammation, and increased bone turnover. Bone metabolism is the result of balance maintenance between bone deposition and bone resorption, by osteoblasts (OBs) and osteoclasts (OCs). An impairment of this balance is responsible for the onset of bone diseases, such as osteoporosis (OP). Therefore, here we will discuss the alteration of bone metabolism in patients with hemoglobinopathies and the possible therapeutic strategies to contain and/or counteract bone health impairment in these patients, taking into consideration not only the pharmacological treatments already used in the clinical armamentarium, but also the new possible therapeutic strategies.
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Affiliation(s)
- Alessandra Di Paola
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Maria Maddalena Marrapodi
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Martina Di Martino
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Giulia Giliberti
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Giuseppe Di Feo
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Deeksha Rana
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Shakeel Ahmed
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Maura Argenziano
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Francesca Rossi
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Domenico Roberti
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
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Yang M, Zhu L. Osteoimmunology: The Crosstalk between T Cells, B Cells, and Osteoclasts in Rheumatoid Arthritis. Int J Mol Sci 2024; 25:2688. [PMID: 38473934 DOI: 10.3390/ijms25052688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 02/22/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
Rheumatoid arthritis (RA) is an ongoing inflammatory condition that affects the joints and can lead to severe damage to cartilage and bones, resulting in significant disability. This condition occurs when the immune system becomes overactive, causing osteoclasts, cells responsible for breaking down bone, to become more active than necessary, leading to bone breakdown. RA disrupts the equilibrium between osteoclasts and osteoblasts, resulting in serious complications such as localized bone erosion, weakened bones surrounding the joints, and even widespread osteoporosis. Antibodies against the receptor activator of nuclear factor-κB ligand (RANKL), a crucial stimulator of osteoclast differentiation, have shown great effectiveness both in laboratory settings and actual patient cases. Researchers are increasingly focusing on osteoclasts as significant contributors to bone erosion in RA. Given that RA involves an overactive immune system, T cells and B cells play a pivotal role by intensifying the immune response. The imbalance between Th17 cells and Treg cells, premature aging of T cells, and excessive production of antibodies by B cells not only exacerbate inflammation but also accelerate bone destruction. Understanding the connection between the immune system and osteoclasts is crucial for comprehending the impact of RA on bone health. By delving into the immune mechanisms that lead to joint damage, exploring the interactions between the immune system and osteoclasts, and investigating new biomarkers for RA, we can significantly improve early diagnosis, treatment, and prognosis of this condition.
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Affiliation(s)
- Mei Yang
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
- Medical Epigenetics Research Center, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Lei Zhu
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
- Medical Epigenetics Research Center, Chinese Academy of Medical Sciences, Beijing 100005, China
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Yang Q, Wei Z, Wei X, Zhang J, Tang Y, Zhou X, Liu P, Dou C, Luo F. The age-related characteristics in bone microarchitecture, osteoclast distribution pattern, functional and transcriptomic alterations of BMSCs in mice. Mech Ageing Dev 2023; 216:111877. [PMID: 37820882 DOI: 10.1016/j.mad.2023.111877] [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: 09/01/2023] [Revised: 09/25/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023]
Abstract
Deteriorated age-related bone loss is the hallmarks of skeletal aging. However, how the aging of bone marrow mesenchymal stem cells (BMSCs) and osteoclasts are linked to the bone microstructure degeneration is not yet very clear. In this study, the characteristics of age-related bone loss, distribution patterns of osteoclasts, functional and transcriptomic alterations of BMSCs, hub genes responsible for BMSCs senescence, were analyzed. Our study revealed an age-related declined trends in trabecular and cortical bones of femur, tibia and lumbar vertebra in mice, which was accompanied by a shift from the trabecular to cortical bones in osteoclasts. Additionally, middle-aged or aged mice exhibited remarkably reduced dynamic bone formation capacities, along with reversed osteogenic-adipogenic differentiation potentials in BMSCs. Finally, transcriptomic analysis indicated that aging-related signaling pathways were significantly activated in BMSCs from aged mice (e.g., cellular senescence, p53 signaling pathway, etc.). Also, weighted correlation network analysis (WGCNA) and venn diagram analysis based on our RNA-Seq data and GSE35956 dataset revealed the critical role of PTPN1 in BMSCs senescence. Targeted inhibition of PTP1B with AAV-Ptpn1-RNAi dramatically postponed age-related bone loss in middle-aged mice. Collectively, our study has uncovered the age-dependent cellular characteristics in BMSCs and osteoclasts underlying progressive bone loss with advancing age.
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Affiliation(s)
- QianKun Yang
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - ZhiYuan Wei
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - XiaoYu Wei
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Jie Zhang
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yong Tang
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Xiang Zhou
- Cadet Brigade 4, College of Basic Medicine, Army Medical University, The Third Military Medical University, Chongqing, China
| | - Pan Liu
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Ce Dou
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Fei Luo
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
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Liu K, Zheng J, Wang Y, Li Y, Xiong Y, Wang Y, Cheng J, Huang X, Zhang L, Lin Y. Effect of TEA domain transcription factor 1 ( TEAD1) on the differentiation of intramuscular preadipocytes in goats. Anim Biotechnol 2023; 34:3589-3598. [PMID: 36866843 DOI: 10.1080/10495398.2023.2178932] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
TEA domain transcription factor 1 (TEAD1), also called TEF-1, acts as a transcriptional enhancer to regulate muscle-specific gene expression. However, the role of TEAD1 in regulating intramuscular preadipocyte differentiation in goats is unclear. The aim of this study was to obtain the sequence of TEAD1 gene and elucidate the effect of TEAD1 on goat intramuscular preadipocyte differentiation in vitro and its possible mechanism. The results showed that the goat TEAD1 gene CDS region sequence was 1311 bp. TEAD1 gene was widely expressed in goat tissues, with the highest expression in brachial triceps (p < 0.01). The expression of TEAD1 gene in goat intramuscular adipocytes at 72 h was extremely significantly higher than that at 0 h (p < 0.01). Overexpression of goat TEAD1 inhibited the accumulation of lipid droplets in goat intramuscular adipocyte. The relative expression of differentiation marker genes SREBP1, PPARγ, C/EBPβ were significantly down-regulated (all p < 0.01), but PREF-1 was significantly up-regulated (p < 0.01). Binding analysis showed that there were multiple binding sites between the DNA binding domain of goat TEAD1 and the promoter binding region of SREBP1, PPARγ, C/EBPβ and PREF-1. In conclusion, TEAD1 negatively regulates the differentiation of goat intramuscular preadipocytes.
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Affiliation(s)
- Kehan Liu
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
- Ministry of Education/Sichuan Province, Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
| | - Jianying Zheng
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
- Ministry of Education/Sichuan Province, Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
| | - Yong Wang
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
- Ministry of Education/Sichuan Province, Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
| | - Yanyan Li
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
- Ministry of Education/Sichuan Province, Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
| | - Yan Xiong
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
- Ministry of Education/Sichuan Province, Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
| | - Youli Wang
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
- Ministry of Education/Sichuan Province, Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
| | - Jie Cheng
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
| | - Xinzhu Huang
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
| | - Liyi Zhang
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
| | - Yaqiu Lin
- Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu, China
- Ministry of Education/Sichuan Province, Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
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Zhang J, Ye F, Ye A, He B. Lysyl oxidase inhibits BMP9-induced osteoblastic differentiation through reducing Wnt/β-catenin via HIF-1a repression in 3T3-L1 cells. J Orthop Surg Res 2023; 18:911. [PMID: 38031108 PMCID: PMC10688138 DOI: 10.1186/s13018-023-04251-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 09/28/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Bone morphogenetic protein 9 (BMP9) is a promising growth factor in bone tissue engineering, while the detailed molecular mechanism underlying BMP9-oriented osteogenesis remains unclear. In this study, we investigated the effect of lysyl oxidase (Lox) on the BMP9 osteogenic potential via in vivo and in vitro experiments, as well as the underlying mechanism. METHODS PCR assay, western blot analysis, histochemical staining, and immunofluorescence assay were used to quantify the osteogenic markers level, as well as the possible mechanism. The mouse ectopic osteogenesis assay was used to assess the impact of Lox on BMP9-induced bone formation. RESULTS Our findings suggested that Lox was obviously upregulated by BMP9 in 3T3-L1 cells. BMP9-induced Runx2, OPN, and mineralization were all enhanced by Lox inhibition or knockdown, while Lox overexpression reduced their expression. Additionally, the BMP9-induced adipogenic makers were repressed by Lox inhibition. Inhibition of Lox resulted in an increase in c-Myc mRNA and β-catenin protein levels. However, the increase in BMP9-induced osteoblastic biomarkers caused by Lox inhibition was obviously reduced when β-catenin knockdown. BMP9 upregulated HIF-1α expression, which was further enhanced by Lox inhibition or knockdown, but reversed by Lox overexpression. Lox knockdown or HIF-1α overexpression increased BMP9-induced bone formation, although the enhancement caused by Lox knockdown was largely diminished when HIF-1α was knocked down. Lox inhibition increased β-catenin levels and decreased SOST levels, which were almost reversed by HIF-1α knockdown. CONCLUSION Lox may reduce the BMP9 osteoblastic potential by inhibiting Wnt/β-catenin signaling via repressing the expression HIF-1α partially.
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Affiliation(s)
- Jie Zhang
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong, Chongqing, 400016, People's Republic of China
- Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - FangLin Ye
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong, Chongqing, 400016, People's Republic of China
- Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - AiHua Ye
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong, Chongqing, 400016, People's Republic of China
- Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - BaiCheng He
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong, Chongqing, 400016, People's Republic of China.
- Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
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Jiang T, Xia T, Qiao F, Wang N, Jiang Y, Xin H. Role and Regulation of Transcription Factors in Osteoclastogenesis. Int J Mol Sci 2023; 24:16175. [PMID: 38003376 PMCID: PMC10671247 DOI: 10.3390/ijms242216175] [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: 09/24/2023] [Revised: 11/01/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Bones serve mechanical and defensive functions, as well as regulating the balance of calcium ions and housing bone marrow.. The qualities of bones do not remain constant. Instead, they fluctuate throughout life, with functions increasing in some situations while deteriorating in others. The synchronization of osteoblast-mediated bone formation and osteoclast-mediated bone resorption is critical for maintaining bone mass and microstructure integrity in a steady state. This equilibrium, however, can be disrupted by a variety of bone pathologies. Excessive osteoclast differentiation can result in osteoporosis, Paget's disease, osteolytic bone metastases, and rheumatoid arthritis, all of which can adversely affect people's health. Osteoclast differentiation is regulated by transcription factors NFATc1, MITF, C/EBPα, PU.1, NF-κB, and c-Fos. The transcriptional activity of osteoclasts is largely influenced by developmental and environmental signals with the involvement of co-factors, RNAs, epigenetics, systemic factors, and the microenvironment. In this paper, we review these themes in regard to transcriptional regulation in osteoclastogenesis.
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Affiliation(s)
- Tao Jiang
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Tianshuang Xia
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
| | - Fangliang Qiao
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
| | - Nani Wang
- Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou 310007, China;
| | - Yiping Jiang
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
| | - Hailiang Xin
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
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Wang Y, Liu H, Zhang Z. Recent Advance in Regulatory Effect of GRP120 on Bone Metabolism. Aging Dis 2023; 14:1714-1727. [PMID: 37196107 PMCID: PMC10529742 DOI: 10.14336/ad.2023.0216] [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: 11/21/2022] [Accepted: 02/16/2023] [Indexed: 05/19/2023] Open
Abstract
The link between fatty acids and bone metabolism is complex and can be direct and indirect. This link has been reported in different types of bone cells and various stages of bone metabolism. G-protein coupled receptor 120 (GPR120), also called free fatty acid receptor 4 (FFAR4), is a member of the recently discovered G protein-coupled receptor family that can interact with both long-chain saturated fatty acids (C14-C18) and long-chain unsaturated fatty acids (C16-C22). Research shows that GPR120 regulates processes in different types of bone cells, directly or indirectly affecting bone metabolism. Our research reviewed the literature on the effects of GPR120 on bone marrow mesenchymal stem cells (BMMSCs), osteoblasts, osteoclasts, and chondrocytes, focusing on the research findings regarding the mechanism by which GPR120 alters specific bone metabolic diseases-osteoporosis and osteoarthritis. The data reviewed here provide a basis for clinical and basic research into the role of GPR120 on bone metabolic diseases.
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Affiliation(s)
| | - Haixia Liu
- Institute of Basic Theory for Chinese Medicine, Chinese Academy of Chinese Medical Sciences, Beijing, China.
| | - Zhiguo Zhang
- Institute of Basic Theory for Chinese Medicine, Chinese Academy of Chinese Medical Sciences, Beijing, China.
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Shang J, Yu Z, Xiong C, Zhang J, Gong J, Yu C, Huang Y, Zhou X. Resistin targets TAZ to promote osteogenic differentiation through PI3K/AKT/mTOR pathway. iScience 2023; 26:107025. [PMID: 37389179 PMCID: PMC10300212 DOI: 10.1016/j.isci.2023.107025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 05/06/2023] [Accepted: 05/30/2023] [Indexed: 07/01/2023] Open
Abstract
Osteogenic differentiation (OD) of bone marrow mesenchymal stem cells (BMSCs) contributes significantly to the regeneration of bone defects. Resistin, an adipose tissue-specific secretory factor, has been shown to involve many different functions, including metabolism, inflammation, cancer, and bone remodeling. However, the effects and mechanisms of resistin on OD of BMSCs remain unclear. Herein, we demonstrated that resistin was highly expressed in BMSCs with OD. Upregulation of resistin contributed to the progression of OD of BMSCs by activating PI3K/AKT/mTOR signaling pathway. In addition, resistin facilitated OD by targeting transcriptional co-activator with PDZ-binding motif (TAZ). In a rat femoral condyle bone defect model, local injection of resistin significantly promoted bone repair and improved bone formation. This work contributes to better understanding the mechanism of resistin directly involved in the OD and might provide a new therapeutic strategy for bone defect regeneration.
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Affiliation(s)
- JingJing Shang
- Department of Pharmacy, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu 213000, China
| | - Zhentang Yu
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Department of Graduate School, Dalian Medical University, Dalian, Liaoning 116000, China
| | - Chengwei Xiong
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu 213000, China
| | - Junjie Zhang
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu 213000, China
| | - Jinhong Gong
- Department of Pharmacy, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu 213000, China
| | - Changlin Yu
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu 213000, China
| | - Yong Huang
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu 213000, China
| | - Xindie Zhou
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu 213000, China
- Department of Orthopedics, Gonghe County Hospital of Traditional Chinese Medicine, Hainan Tibetan Autonomous Prefecture, Qinghai 811800, China
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Yan Z, Ruan B, Wang S, Du T, Shao X, Chen G, Wang L, Zhai D, Zhu S, Lu Z, Cao X. RNA-binding Protein QKI Inhibits Osteogenic Differentiation Via Suppressing Wnt Pathway. Arch Med Res 2023; 54:102853. [PMID: 37460362 DOI: 10.1016/j.arcmed.2023.102853] [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: 01/25/2023] [Revised: 05/23/2023] [Accepted: 07/03/2023] [Indexed: 07/31/2023]
Abstract
BACKGROUND Dysregulation of MSCs differentiation is associated with many pathophysiological processes. Genetically modified MSCs transplantation helps restore bone loss efficiently. METHODS BMSCs-specific QKI overexpressing and knockdown mice were built to explore QKI's role in bone formation and fat accumulation. Primary BMSCs with QKI overexpression and knockout were subjected to osteogenic and adipogenic differentiation. ALP staining and oil red O staining were performed to evaluate the differences between the groups. RNA immunoprecipitation was performed to identify the QKI-related pathway. QKI deficient BMSCs were transplanted into mice with glucocorticoid-induced osteoporosis to evaluate its therapeutic potential. RESULTS Mice harboring BMSC-specific transgenic QKI exhibited reduced bone mass, while BMSC-specific QKI-deficient mice showed an increase in bone mass. Osteogenic differentiation of QKI deficient BMSCs was promoted and adipogenic differentiation was inhibited, while QKI overexpression in BMSCs displayed the opposite effects. To define the underlying mechanisms, RIP sequencing was performed. Wnt pathway-related genes were the putative direct target mRNAs of QKI, Canonical Wnt pathway activation was involved in QKI's effects on osteogenic differentiation. RNA immunoprecipitation quantitative real-time Polymerase Chain Reaction (PCR) and RNA fluorescence in situ hybridization experiments further validated that QKI repressed the expressions of Wnt5b, Fzd7, Dvl3 and β-catenin via direct binding to their putative mRNA specific sites. Glucocorticoid-induced osteoporotic mice transplanted with QKI deficient BMSCs exhibited less bone loss compared with mice transplanted with control BMSCs. CONCLUSIONS QKI suppressed BMSCs osteogenic differentiation by downregulating the expressions of Wnt5b, Fzd7, Dvl3 and β-catenin. Loss of QKI in BMSCs transplantation may provide a new strategy for the treatment of orthopedic diseases such as osteoporosis.
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Affiliation(s)
- Zhao Yan
- PLA Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China; Department of Anatomy, Histology and Embryology and K.K. Leung Brain Research Centre, Fourth Military Medical University, Xi'an, China
| | - Banjun Ruan
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shan Wang
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Tianshu Du
- PLA Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaolong Shao
- PLA Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Guo Chen
- State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Fourth Military Medical University, Xi'an, China
| | - Li Wang
- State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Fourth Military Medical University, Xi'an, China
| | - Dongsheng Zhai
- State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Fourth Military Medical University, Xi'an, China
| | - Shu Zhu
- PLA Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zifan Lu
- State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Fourth Military Medical University, Xi'an, China; Shaanxi Provincial People's Hospital, Xi'an, China
| | - Xiaorui Cao
- PLA Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
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12
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Feixiang L, Yanchen F, Xiang L, Yunke Z, Jinxin M, Jianru W, Zixuan L. The mechanism of oxytocin and its receptors in regulating cells in bone metabolism. Front Pharmacol 2023; 14:1171732. [PMID: 37229246 PMCID: PMC10203168 DOI: 10.3389/fphar.2023.1171732] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/20/2023] [Indexed: 05/27/2023] Open
Abstract
Oxytocin (OT) is a neuropeptide known to affect social behavior and cognition. The epigenetic modification of the oxytocin receptor (OTR) via DNA methylation stimulates parturition and breast milk secretion and inhibits craniopharyngioma, breast cancer, and ovarian cancer growth significantly as well as directly regulates bone metabolism in their peripheral form rather than the central form. OT and OTR can be expressed on bone marrow mesenchymal stem cells (BMSCs), osteoblasts (OB), osteoclasts (OC), osteocytes, chondrocytes, and adipocytes. OB can synthesize OT under the stimulation of estrogen as a paracrine-autocrine regulator for bone formation. OT/OTR, estrogen, and OB form a feed-forward loop through estrogen mediation. The osteoclastogenesis inhibitory factor (OPG)/receptor activator of the nuclear factor kappa-B ligand (RANKL) signaling pathway is crucially required for OT and OTR to exert anti-osteoporosis effect. Downregulating the expression of bone resorption markers and upregulating the expression of the bone morphogenetic protein, OT could increase BMSC activity and promote OB differentiation instead of adipocytes. It could also stimulate the mineralization of OB by motivating OTR translocation into the OB nucleus. Moreover, by inducing intracytoplasmic Ca2+ release and nitric oxide synthesis, OT could regulate the OPG/RANKL ratio in OB and exert a bidirectional regulatory effect on OC. Furthermore, OT could increase the activity of osteocytes and chondrocytes, which helps increase bone mass and improve bone microstructure. This paper reviews recent studies on the role of OT and OTR in regulating cells in bone metabolism as a reference for their clinical use and research based on their reliable anti-osteoporosis effects.
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Affiliation(s)
- Liu Feixiang
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Feng Yanchen
- Traditional Chinese Medicine (Zhong Jing) School, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Li Xiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Hangzhou, China
| | - Zhang Yunke
- School of Rehabilitation Medicine, Henan University of Chinese Medicine, Zhengzhou, China
| | - Miao Jinxin
- Research and Experiment Center, Henan University of Chinese Medicine, Zhengzhou, China
| | - Wang Jianru
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Lin Zixuan
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
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13
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Sun H, Meng S, Chen J, Wan Q. Effects of Hyperlipidemia on Osseointegration of Dental Implants and Its Strategies. J Funct Biomater 2023; 14:jfb14040194. [PMID: 37103284 PMCID: PMC10145040 DOI: 10.3390/jfb14040194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Hyperlipidemia refers to the abnormal increase in plasma lipid level exceeding the normal range. At present, a large number of patients require dental implantation. However, hyperlipidemia affects bone metabolism, promotes bone loss, and inhibits the osseointegration of dental implants through the mutual regulation of adipocytes, osteoblasts, and osteoclasts. This review summarized the effects of hyperlipidemia on dental implants and addressed the potential strategies of dental implants to promote osseointegration in a hyperlipidemic environment and to improve the success rate of dental implants in patients with hyperlipidemia. We summarized topical drug delivery methods to solve the interference of hyperlipidemia in osseointegration, which were local drug injection, implant surface modification and bone-grafting material modification. Statins are the most effective drugs in the treatment of hyperlipidemia, and they also encourage bone formation. Statins have been used in these three methods and have been found to be positive in promoting osseointegration. Directly coating simvastatin on the rough surface of the implant can effectively promote osseointegration of the implant in a hyperlipidemic environment. However, the delivery method of this drug is not efficient. Recently, a variety of efficient methods of simvastatin delivery, such as hydrogels and nanoparticles, have been developed to boost bone formation, but few of them were applied to dental implants. Applicating these drug delivery systems using the three aforementioned ways, according to the mechanical and biological properties of materials, could be promising ways to promote osseointegration under hyperlipidemic conditions. However, more research is needed to confirm.
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14
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B. abortus Infection Promotes an Imbalance in the Adipocyte–Osteoblast Crosstalk Favoring Bone Resorption. Int J Mol Sci 2023; 24:ijms24065617. [PMID: 36982692 PMCID: PMC10054538 DOI: 10.3390/ijms24065617] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/27/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023] Open
Abstract
Osteoarticular injury is the most common presentation of active brucellosis in humans. Osteoblasts and adipocytes originate from mesenchymal stem cells (MSC). Since those osteoblasts are bone-forming cells, the predilection of MSC to differentiate into adipocytes or osteoblasts is a potential factor involved in bone loss. In addition, osteoblasts and adipocytes can be converted into each other according to the surrounding microenvironment. Here, we study the incumbency of B. abortus infection in the crosstalk between adipocytes and osteoblasts during differentiation from its precursors. Our results indicate that soluble mediators present in culture supernatants from B. abotus-infected adipocytes inhibit osteoblast mineral matrix deposition in a mechanism dependent on the presence of IL-6 with the concomitant reduction of Runt-related transcription factor 2 (RUNX-2) transcription, but without altering organic matrix deposition and inducing nuclear receptor activator ligand kβ (RANKL) expression. Secondly, B. abortus-infected osteoblasts stimulate adipocyte differentiation with the induction of peroxisome proliferator-activated receptor γ (PPAR-γ) and CCAAT enhancer binding protein β (C/EBP-β). We conclude that adipocyte–osteoblast crosstalk during B. abortus infection could modulate mutual differentiation from its precursor cells, contributing to bone resorption.
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15
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Wen J, Bao Z, Li L, Liu Y, Wei B, Ye X, Xu H, Cui L, Li X, Shen G, Fang Y, Zeng H, Shen Z, Guo E, Jin H, Wu L. Qiangguyin inhibited fat accumulation in OVX mice through the p38 MAPK signaling pathway to achieve anti-osteoporosis effects. Biomed Pharmacother 2023; 158:114122. [PMID: 36566522 DOI: 10.1016/j.biopha.2022.114122] [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: 09/10/2022] [Revised: 12/01/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
Postmenopausal osteoporosis (PMOP) is a common bone disease characterized by decreased bone density and increased bone fragility due to decreased estrogen levels. Qiangguyin (QGY) is transformed from the famous traditional Chinese medicine BuShen Invigorating Blood Decoction. In this study, we used QGY to treat PMOP. We observed that QGY significantly reduced fat accumulation in the chondro-osseous junction. However, its specific mechanism of action remains unclear. To determine the specific molecular mechanism of QGY, we explored the pharmacological mechanism by which QGY reduces fat accumulation in the chondro-osseous junction through network pharmacological analysis. The active components and targets related to PMOP and QGY were screened from different databases, forming a composition-target-disease network. Next, a comprehensive analysis platform including protein-protein interaction (PPI) network, Gene Ontology (GO) enrichment analysis, and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were established. The results revealed that QGY inhibits adipogenic differentiation by activating the mitogen-activated protein kinase (MAPK) signaling pathway, thus reducing the accumulation of fat in the chondro-osseous junction. For further verification. In vitro and in vivo experiments were carried out. Our data showed that QGY significantly reversed the high expression of fatty acid binding protein 4 (FABP4) and peroxisome proliferator-activated receptor γ (PPARγ). Further, QGY prevents fat accumulation by inhibiting the expression of p38. In summary, the results of this study suggested that QGY-induced phenotypic changes are related to the activation of the p38 MAPK signaling pathway.
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Affiliation(s)
- Jingyuan Wen
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhengsheng Bao
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Lunxin Li
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Yingquan Liu
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Bing Wei
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaoang Ye
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Huihui Xu
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Longkang Cui
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Xuefei Li
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Gaobo Shen
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuan Fang
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Hanbing Zeng
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhe Shen
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Enping Guo
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Hongting Jin
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Lianguo Wu
- The Second Clinical College, Zhejiang Chinese Medical University, Hangzhou, China.
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16
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C/EBPβ expression decreases in cervical cancer and leads to tumorigenesis. BMC Cancer 2023; 23:79. [PMID: 36694148 PMCID: PMC9872280 DOI: 10.1186/s12885-023-10543-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 01/12/2023] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Cervical cancer is currently estimated to be the fourth most common cancer among women worldwide and the leading cause of cancer-related deaths in some of the world's poorest countries. C/EBPβ has tumor suppressor effects because it is necessary for oncogene-induced senescence. However, C/EBPβ also has an oncogenic role. The specific role of C/EBPβ in cervical cancer as a tumor suppressor or oncoprotein is unclear. OBJECTIVE To explore the role of the C/EBPβ protein in cervical tumorigenesis and progression. METHODS Quantitative RT-PCR was used to analyze C/EBPβ (15 cervical cancer tissue samples and 15 corresponding normal cervical tissue samples), miR-661, and MTA1 mRNA expression in clinical samples (10 cervical cancer tissue samples and 10 corresponding normal cervical tissue samples). Immunohistochemistry was used to analyze C/EBPβ (381 clinical samples), Ki67 (80 clinical samples) and PCNA ( 60 clinical samples) protein expression. MALDI-TOF MassARRAY was used to analyze C/EBPβ gene methylation (13 cervical cancer tissues and 13 corresponding normal cervical tissues). Cell proliferation was analyzed by CCK-8 in cervical cancer cell lines. Western blotting and immunohistochemistry were performed to detect C/EBPβ protein expression levels, and mRNA expression was analyzed by quantitative RT-PCR analysis. Flow cytometry was performed to measure cell cycle distribution and cell apoptosis. Colony formation, Transwell, cell invasion, and wound healing assays were performed to detect cell migration and invasion. RESULTS C/EBPβ protein expression was significantly reduced in cervical cancer tissues compared with cervicitis tissues (P < 0.01). Ki67 protein and PCNA protein expression levels were significantly higher in cervical cancer tissues compared with cervicitis tissues. The rate of C/EBPβ gene promoter methylation of CpG12, 13, 14 and CpG19 in cervical cancer tissues was significantly increased compared with normal cervical tissue (P < 0.05). In addition, C/EBPβ was overexpressed in cervical cancer cells and this overexpression inhibited cell proliferation, migration, invasion, arrested cells in S phase, and promoted apoptosis. CONCLUSIONS We have demonstrated that C/EBPβ decreased in cervical cancer tissues and overexpression of the C/EBPβ gene in cervical cancer cells could inhibit proliferation, invasion and migration.
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17
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Deng X, Deng L, Xu M, Sun Y, Yang M. Effects of SIRT1 on Osteogenic Differentiation of Bone Marrow Mesenchymal Stem Cells in Type 2 Diabetic Patients. Endocr Metab Immune Disord Drug Targets 2023; 23:1077-1086. [PMID: 36624641 DOI: 10.2174/1871530323666230109124631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Patients with type 2 diabetes mellitus (T2DM) are at high risk for osteoporosis. SIRT1 plays an important regulatory role in the occurrence and development of diabetes mellitus; however, it is still not clear whether SIRT1 is directly related to the osteogenic ability of bone marrow mesenchymal stem cells (BMSCs) in T2DM patients. METHODS We obtained BMSCs from patients with T2DM and healthy volunteers to determine the effect of SIRT1 expression on the osteogenic capacity of BMSCs. As a result, SIRT1 expression in BMSCs in T2DM was significantly lower compared to healthy volunteers, but the proliferative capacity of BMSCs in the T2DM group was not significantly different from that of healthy volunteers. RESULTS During osteogenic differentiation, the expression of SIRT1 in MSCs from T2DM patients was significantly decreased, and the osteogenic differentiation ability of MSCs from T2DM patients was significantly lower than healthy volunteers. After intervention with resveratrol, the expression of SIRT1 increased significantly, and the apoptotic rate of MSCs in T2DM patients decreased significantly. Moreover, resveratrol promoted osteoblast differentiation of MSCs. CONCLUSION Our study confirmed that the expression of SIRT1 is directly related to the osteogenic potential of BMSCs in patients with T2DM. Resveratrol promoted the osteogenic differentiation of BMSCs by increasing the expression of SIRT1. The increased expression of SIRT1 significantly reduced BMSC apoptosis during osteogenic differentiation, which is one of the important mechanisms by which SIRT1 regulates the osteogenic ability of BMSCs. Our data also provide strong evidence that resveratrol may be used in the treatment of osteoporosis in patients with T2DM.
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Affiliation(s)
- Xiangqun Deng
- Department of Endocrinology, Wuhan Third Hospital, Wuhan University, Wuhan 430062, China
| | - Ling Deng
- Department of Cardiology, Wuhan Third Hospital, Wuhan University, Wuhan 430062, China
| | - Min Xu
- Department of Clinical Laboratory, Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou 213003, China
| | - Yanlei Sun
- Department of Endocrinology, Wuhan Third Hospital, Wuhan University, Wuhan 430062, China
| | - Mei Yang
- Department of Endocrinology, Wuhan Third Hospital, Wuhan University, Wuhan 430062, China
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18
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Yang J, Feng Y, Li Q, Zeng Y. Evidence of the static magnetic field effects on bone-related diseases and bone cells. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2023; 177:168-180. [PMID: 36462638 DOI: 10.1016/j.pbiomolbio.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022]
Abstract
Static magnetic fields (SMFs), magnetic fields with constant intensity and orientation, have been extensively studied in the field of bone biology both fundamentally and clinically as a non-invasive physical factor. A large number of animal experiments and clinical studies have shown that SMFs have effective therapeutic effects on bone-related diseases such as non-healing fractures, bone non-union of bone implants, osteoporosis and osteoarthritis. The maintenance of bone health in adults depends on the basic functions of bone cells, such as bone formation by osteoblasts and bone resorption by osteoclasts. Numerous studies have revealed that SMFs can regulate the proliferation, differentiation, and function of bone tissue cells, including bone marrow mesenchymal stem cells (BMSCs), osteoblasts, bone marrow monocytes (BMMs), osteoclasts, and osteocytes. In this paper, the effects of SMFs on bone-related diseases and bone tissue cells are reviewed from both in vivo studies and in vitro studies, and the possible mechanisms are analyzed. In addition, some challenges that need to be further addressed in the research of SMF and bone are also discussed.
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Affiliation(s)
- Jiancheng Yang
- Department of Osteoporosis, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yan Feng
- Department of Osteoporosis, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Qingmei Li
- Department of Osteoporosis, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yuhong Zeng
- Department of Osteoporosis, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China.
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19
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Leng H, Zhang H, Li L, Zhang S, Wang Y, Chavda SJ, Galas-Filipowicz D, Lou H, Ersek A, Morris EV, Sezgin E, Lee YH, Li Y, Lechuga-Vieco AV, Tian M, Mi JQ, Yong K, Zhong Q, Edwards CM, Simon AK, Horwood NJ. Modulating glycosphingolipid metabolism and autophagy improves outcomes in pre-clinical models of myeloma bone disease. Nat Commun 2022; 13:7868. [PMID: 36550101 PMCID: PMC9780346 DOI: 10.1038/s41467-022-35358-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
Patients with multiple myeloma, an incurable malignancy of plasma cells, frequently develop osteolytic bone lesions that severely impact quality of life and clinical outcomes. Eliglustat, a U.S. Food and Drug Administration-approved glucosylceramide synthase inhibitor, reduced osteoclast-driven bone loss in preclinical in vivo models of myeloma. In combination with zoledronic acid, a bisphosphonate that treats myeloma bone disease, eliglustat provided further protection from bone loss. Autophagic degradation of TRAF3, a key step for osteoclast differentiation, was inhibited by eliglustat as evidenced by TRAF3 lysosomal and cytoplasmic accumulation. Eliglustat blocked autophagy by altering glycosphingolipid composition whilst restoration of missing glycosphingolipids rescued autophagy markers and TRAF3 degradation thus restoring osteoclastogenesis in bone marrow cells from myeloma patients. This work delineates both the mechanism by which glucosylceramide synthase inhibition prevents autophagic degradation of TRAF3 to reduce osteoclastogenesis as well as highlighting the clinical translational potential of eliglustat for the treatment of myeloma bone disease.
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Affiliation(s)
- Houfu Leng
- grid.4991.50000 0004 1936 8948Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY UK
| | - Hanlin Zhang
- grid.4991.50000 0004 1936 8948Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY UK
| | - Linsen Li
- grid.16821.3c0000 0004 0368 8293Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Shuhao Zhang
- grid.4991.50000 0004 1936 8948Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY UK ,grid.147455.60000 0001 2097 0344Computational Biology Department, Carnegie Mellon University, Pittsburgh, PA 15217 USA
| | - Yanping Wang
- grid.263761.70000 0001 0198 0694Institutes of Biology and Medical Sciences, Soochow University, Suzhou, P.R. China
| | - Selina J. Chavda
- grid.83440.3b0000000121901201Department of Hematology, UCL Cancer Institute, University College London, London, UK
| | - Daria Galas-Filipowicz
- grid.83440.3b0000000121901201Department of Hematology, UCL Cancer Institute, University College London, London, UK
| | - Hantao Lou
- grid.4991.50000 0004 1936 8948Ludwig Institute for Cancer Research, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7DQ UK
| | - Adel Ersek
- grid.8273.e0000 0001 1092 7967Norwich Medical School, University of East Anglia, James Watson Road, Norwich, NR4 7UQ UK
| | - Emma V. Morris
- grid.4991.50000 0004 1936 8948Nuffield Department of Surgical Sciences, Botnar Research Centre, University of Oxford, Old Road, Oxford, OX3 7LD UK
| | - Erdinc Sezgin
- grid.4714.60000 0004 1937 0626Science for Life Laboratory, Department of Women’s and Children’s Health, Karolinska Institute, Solna, Sweden ,grid.173746.00000 0004 0606 3678MRC Weatherall Institute of Molecular Medicine, MRC Human Immunology Unit, Oxford, OX3 9DS UK
| | - Yi-Hsuan Lee
- grid.4991.50000 0004 1936 8948Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY UK ,grid.8273.e0000 0001 1092 7967Norwich Medical School, University of East Anglia, James Watson Road, Norwich, NR4 7UQ UK
| | - Yunsen Li
- grid.263761.70000 0001 0198 0694Institutes of Biology and Medical Sciences, Soochow University, Suzhou, P.R. China
| | - Ana Victoria Lechuga-Vieco
- grid.4991.50000 0004 1936 8948Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY UK
| | - Mei Tian
- grid.8547.e0000 0001 0125 2443Human Phenome Institute, Fudan University, 825 Zhangheng Road, Shanghai, P.R. China
| | - Jian-Qing Mi
- grid.412277.50000 0004 1760 6738Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, RuiJin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Kwee Yong
- grid.83440.3b0000000121901201Department of Hematology, UCL Cancer Institute, University College London, London, UK
| | - Qing Zhong
- grid.16821.3c0000 0004 0368 8293Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Claire M. Edwards
- grid.4991.50000 0004 1936 8948Nuffield Department of Surgical Sciences, Botnar Research Centre, University of Oxford, Old Road, Oxford, OX3 7LD UK ,grid.4991.50000 0004 1936 8948Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Old Road, Oxford, OX3 7LD UK
| | - Anna Katharina Simon
- grid.4991.50000 0004 1936 8948Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY UK
| | - Nicole J. Horwood
- grid.4991.50000 0004 1936 8948Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY UK ,grid.8273.e0000 0001 1092 7967Norwich Medical School, University of East Anglia, James Watson Road, Norwich, NR4 7UQ UK
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20
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Zhang Z, Zhang Z, Pei L, Zhang X, Li B, Meng Y, Zhou X. How high-fat diet affects bone in mice: A systematic review and meta-analysis. Obes Rev 2022; 23:e13493. [PMID: 35822276 DOI: 10.1111/obr.13493] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/18/2022] [Accepted: 06/19/2022] [Indexed: 11/29/2022]
Abstract
High-fat diet (HFD) feeding for mice is commonly used to model obesity. However, conflicting results have been reported on the relationship between HFD and bone mass. In this systematic review and meta-analysis, we synthesized data from 80 articles to determine the alterations in cortical and trabecular bone mass of femur, tibia, and vertebrae in C57BL/6 mice after HFD. Overall, we detected decreased trabecular bone mass as well as deteriorated architecture, in femur and tibia of HFD treated mice. The vertebral trabecula was also impaired, possibly due to its reshaping into a more fragmentized pattern. In addition, pooled cortical thickness declined in femur, tibia, and vertebrae. Combined with changes in other cortical parameters, HFD could lead to a larger femoral bone marrow cavity, and a thinner and more fragile cortex. Moreover, we conducted subgroup analyses to explore the influence of mice's sex and age as well as HFD's ingredients and intervention period. Based on our data, male mice or mice aged 6-12 weeks old are relatively susceptible to HFD. HFD with > 50% of energy from fats and intervention time of 10 weeks to 5 months are more likely to induce skeletal alterations. Altogether, these findings supported HFD as an appropriate model for obesity-associated bone loss and can guide future studies.
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Affiliation(s)
- Zheng Zhang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, People's Republic of China
| | - Zhanrong Zhang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, People's Republic of China
| | - Lei Pei
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Xiaozhou Zhang
- College of Letters & Science, University of California Berkeley, Berkeley, California, USA
| | - Boyuan Li
- Fountain Valley School of Colorado, Colorado Springs, Colorado, USA
| | - Yichen Meng
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, People's Republic of China
| | - Xuhui Zhou
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, People's Republic of China
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21
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Wang B, Zhan Y, Yan L, Hao D. How zoledronic acid improves osteoporosis by acting on osteoclasts. Front Pharmacol 2022; 13:961941. [PMID: 36091799 PMCID: PMC9452720 DOI: 10.3389/fphar.2022.961941] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/22/2022] [Indexed: 11/23/2022] Open
Abstract
Osteoporosis is called a silent disease, because it is difficult to detect until comprehensive examinations for osteoporosis are performed or osteoporotic fractures occur. Zoledronic acid is currently the first-line anti-osteoporotic drug, with good efficacy and treatment compliance. A major advantage of zoledronic acid is that intravenous zoledronic acid often guarantees a therapeutic effect for up to 1 year after infusion. The reasons why zoledronic acid is effective in improving osteoporosis are that it can inhibit osteoclast differentiation and induce osteoclast apoptosis, thus suppressing bone resorption and increasing bone density. The story between zoledronic acid and osteoclasts has been written long time ago. Both the canonical receptor activator of the receptor activator of nuclear factor-κB ligand (RANKL) pathway and the non-canonical Wnt pathway are the main pathways by which zoledronic acid inhibits osteoclast differentiation. Farnesyl pyrophosphate synthase (FPPS), reactive oxygen species (ROS), and ferroptosis that was first proposed in 2012, are all considered to be closely associated with zoledronic acid-induced osteoclast apoptosis. Here, we provide a brief review of the recent progress on the study of zoledronic acid and osteoclasts, and hope to elaborate how zoledronic acid improves osteoporosis by acting on osteoclasts.
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Affiliation(s)
- Biao Wang
- Spine Surgery, Honghui Hospital Affiliated to Xi’an Jiaotong University, Xi’an, China
| | - Yi Zhan
- Spine Surgery, Honghui Hospital Affiliated to Xi’an Jiaotong University, Xi’an, China
- The Sceond Clinical Medical College of Shaanxi University of Chinese Medicine, Xi’an, China
| | - Liang Yan
- Spine Surgery, Honghui Hospital Affiliated to Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Dingjun Hao, ; Liang Yan,
| | - Dingjun Hao
- Spine Surgery, Honghui Hospital Affiliated to Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Dingjun Hao, ; Liang Yan,
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22
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Du D, Jing Z, Zhang G, Dang X, Liu R, Song J. The relationship between central obesity and bone mineral density: a Mendelian randomization study. Diabetol Metab Syndr 2022; 14:63. [PMID: 35501835 PMCID: PMC9063301 DOI: 10.1186/s13098-022-00840-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 04/26/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND The relationship between obesity and osteoporosis is an important public health issue. The goal of this study was to investigate whether and to what extent central obesity traits affect bone mineral density (BMD). METHODS We conducted a two-sample Mendelian randomization analysis. Genomewide significant single nucleotide polymorphisms associated with waist circumference, hip circumference, waist-to-hip ratio, waist circumference adjusted by body mass index (WCadjBMI), hip circumference adjusted by BMI (HCadjBMI) and waist-to-hip ratio adjusted by BMI (WHRadjBMI) were obtained from a large-scale database containing 224,459 samples. The BMD summary dataset was obtained from a UK Biobank database including 265,627 participants. RESULTS The results provided strong evidence that the HCadjBMI trait was causally and negatively associated with BMD (β: - 0.135, 95% CI - 0.216 to - 0.054; P = 0.001), while the WHR trait was causally and positively associated with BMD (β: 0.194, 95% CI 0.062 to 0.325, P = 0.004). No significant effects were observed for other traits on BMD. CONCLUSIONS This study indicates variations in the abilities of different central obesity traits to influence BMD. These results should be considered in further studies and public health measures on obesity and osteoporosis prevention strategies.
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Affiliation(s)
- Dengkui Du
- Department of Orthopaedics, The Second Affiliated Hospital, Xi’an Jiaotong University, No.157, Xiwu Road, Xi’an, 710004 Shaanxi Province China
- Department of Orthopaedics, Luoyang Central Hospital, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471009 Henan Province China
| | - Zhaopu Jing
- Department of Orthopaedics, The Second Affiliated Hospital, Xi’an Jiaotong University, No.157, Xiwu Road, Xi’an, 710004 Shaanxi Province China
| | - Guangyang Zhang
- Department of Orthopaedics, The Second Affiliated Hospital, Xi’an Jiaotong University, No.157, Xiwu Road, Xi’an, 710004 Shaanxi Province China
| | - Xiaoqian Dang
- Department of Orthopaedics, The Second Affiliated Hospital, Xi’an Jiaotong University, No.157, Xiwu Road, Xi’an, 710004 Shaanxi Province China
| | - Ruiyu Liu
- Department of Orthopaedics, The Second Affiliated Hospital, Xi’an Jiaotong University, No.157, Xiwu Road, Xi’an, 710004 Shaanxi Province China
| | - Jidong Song
- Department of Orthopaedics, The Second Affiliated Hospital, Xi’an Jiaotong University, No.157, Xiwu Road, Xi’an, 710004 Shaanxi Province China
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23
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Huang Z, Luo R, Yang L, Chen H, Zhang X, Han J, Wang H, Zhou Z, Wang Z, Shao L. CPT1A-Mediated Fatty Acid Oxidation Promotes Precursor Osteoclast Fusion in Rheumatoid Arthritis. Front Immunol 2022; 13:838664. [PMID: 35273614 PMCID: PMC8902079 DOI: 10.3389/fimmu.2022.838664] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/01/2022] [Indexed: 12/29/2022] Open
Abstract
The overproduction of osteoclasts, leading to bone destruction in patients with rheumatoid arthritis (RA), is well established. However, little is known about the metabolic dysfunction of osteoclast precursors (OCPs) in RA. Herein, we show that increasing fatty acid oxidation (FAO) induces OCP fusion. Carnitine palmitoyltransferase IA (CPT1A), which is important for carnitine transportation and is involved in FAO in the mitochondria, is upregulated in RA patients. This metabolic change further increases the expression of clathrin heavy chain (CLTC) and clathrin light chain A (CLTA) by enhancing the binding of the transcription factor CCAAT/enhancer binding protein β (C/EBPβ) to the promoters of CLTA and CLTC. This drives clathrin-dependent endocytosis pathway, which attenuates fusion receptors in the cellular membrane and contributes to increased podosome structure formation. This study reveals a new mechanism through which FAO metabolism participates in joint destruction in RA and provides a novel therapeutic direction for the development of drugs against bone destruction in patients with RA.
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Affiliation(s)
- Zhaoyang Huang
- The Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Rong Luo
- The Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Liu Yang
- Department of Rheumatology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Haiqi Chen
- The Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xinyao Zhang
- Department of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jiawen Han
- The Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hongxia Wang
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhongyang Zhou
- The Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhao Wang
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Lan Shao
- The Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
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24
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Mladenova SG, Savova MS, Marchev AS, Ferrante C, Orlando G, Wabitsch M, Georgiev MI. Anti-adipogenic activity of maackiain and ononin is mediated via inhibition of PPARγ in human adipocytes. Biomed Pharmacother 2022; 149:112908. [PMID: 35367764 DOI: 10.1016/j.biopha.2022.112908] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/21/2022] [Accepted: 03/29/2022] [Indexed: 11/26/2022] Open
Abstract
Obesity is a global health burden for which we do not yet have effective treatments for prevention or therapy. Plants are an invaluable source of bioactive leads possessing anti-adipogenic potential. Ethnopharmacological use of Ononis spinosa L. roots (OSR) for treatment of obesity and metabolic disorders requires а scientific rationale. The current study examined the anti-adipogenic capacity of OSR and its secondary metabolites ononin (ONON) and maackiain (MACK) in human adipocytes as an in vitro model of obesity. Both ONON and MACK diminished lipid accumulation during adipocyte differentiation. Molecular docking analysis exposed the potential interactions between MACK or ONON and target regulatory adipogenic proteins. Furthermore, results from an RT-qPCR analysis disclosed significant upregulation of AMPK by MACK and ONON treatment. In addition, ONON increased SIRT1, PI3K and ACC mRNA expression, while MACK notably downregulated CEBPA, AKT, SREBP1, ACC and ADIPOQ. The protein level of PI3K, C/EBPα, PPARγ and adiponectin was reduced upon MACK treatment in a concentration-dependent manner. Similarly, ONON suppressed PI3K, PPARγ and adiponectin protein abundance. Finally, our study provides evidence that ONON exerts anti-adipogenic effect by upregulation of SIRT1 and inhibition of PI3K, PPARγ and adiponectin, while MACK induced strong inhibitory effect on adipogenesis via hampering PI3K, PPARγ/C/EBPα signaling and anti-lipogenic effect through downregulation of SREBP1 and ACC. Even though OSR does not hamper adipogenic differentiation, it could be exploited as a source of natural leads with anti-adipogenic potential. The multidirectional mechanism of action of MACK warrant further validation in the context of in vivo obesity models.
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Affiliation(s)
- Saveta G Mladenova
- BB-NCIPD Ltd., BB-National Centre of Infectious and Parasitic Diseases, Ministry of Health, 1000 Sofia, Bulgaria
| | - Martina S Savova
- Department of Plant Cell Biotechnology, Center of Plant Systems Biology and Biotechnology, 4000, Plovdiv, Bulgaria; Laboratory of Metabolomics, Department of Biotechnology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd, 4000 Plovdiv, Bulgaria
| | - Andrey S Marchev
- Department of Plant Cell Biotechnology, Center of Plant Systems Biology and Biotechnology, 4000, Plovdiv, Bulgaria; Laboratory of Metabolomics, Department of Biotechnology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd, 4000 Plovdiv, Bulgaria
| | - Claudio Ferrante
- Department of Pharmacy, G. d'Annunzio University, 66100 Chieti, Italy
| | - Giustino Orlando
- Department of Pharmacy, G. d'Annunzio University, 66100 Chieti, Italy
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, 89073 Ulm, Germany
| | - Milen I Georgiev
- Department of Plant Cell Biotechnology, Center of Plant Systems Biology and Biotechnology, 4000, Plovdiv, Bulgaria; Laboratory of Metabolomics, Department of Biotechnology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd, 4000 Plovdiv, Bulgaria.
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25
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Ruiz-Aparicio PF, Vernot JP. Bone Marrow Aging and the Leukaemia-Induced Senescence of Mesenchymal Stem/Stromal Cells: Exploring Similarities. J Pers Med 2022; 12:jpm12050716. [PMID: 35629139 PMCID: PMC9147878 DOI: 10.3390/jpm12050716] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/20/2022] [Accepted: 04/27/2022] [Indexed: 12/17/2022] Open
Abstract
Bone marrow aging is associated with multiple cellular dysfunctions, including perturbed haematopoiesis, the propensity to haematological transformation, and the maintenance of leukaemia. It has been shown that instructive signals from different leukemic cells are delivered to stromal cells to remodel the bone marrow into a supportive leukemic niche. In particular, cellular senescence, a physiological program with both beneficial and deleterious effects on the health of the organisms, may be responsible for the increased incidence of haematological malignancies in the elderly and for the survival of diverse leukemic cells. Here, we will review the connection between BM aging and cellular senescence and the role that these processes play in leukaemia progression. Specifically, we discuss the role of mesenchymal stem cells as a central component of the supportive niche. Due to the specificity of the genetic defects present in leukaemia, one would think that bone marrow alterations would also have particular changes, making it difficult to envisage a shared therapeutic use. We have tried to summarize the coincident features present in BM stromal cells during aging and senescence and in two different leukaemias, acute myeloid leukaemia, with high frequency in the elderly, and B-acute lymphoblastic leukaemia, mainly a childhood disease. We propose that mesenchymal stem cells are similarly affected in these different leukaemias, and that the changes that we observed in terms of cellular function, redox balance, genetics and epigenetics, soluble factor repertoire and stemness are equivalent to those occurring during BM aging and cellular senescence. These coincident features may be used to explore strategies useful to treat various haematological malignancies.
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Affiliation(s)
- Paola Fernanda Ruiz-Aparicio
- Grupo de Investigación Fisiología Celular y Molecular, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá 111321, Colombia;
| | - Jean-Paul Vernot
- Grupo de Investigación Fisiología Celular y Molecular, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá 111321, Colombia;
- Instituto de Investigaciones Biomédicas, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá 111321, Colombia
- Correspondence:
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26
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Chen P, Hong W, Chen Z, Gordillo-Martinez F, Wang S, Fan H, Liu Y, Dai Y, Wang B, Jiang L, Yu H, He P. CCAAT/Enhancer-Binding Protein Alpha Is a Novel Regulator of Vascular Smooth Muscle Cell Osteochondrogenic Transition and Vascular Calcification. Front Physiol 2022; 13:755371. [PMID: 35295585 PMCID: PMC8918665 DOI: 10.3389/fphys.2022.755371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 01/10/2022] [Indexed: 11/13/2022] Open
Abstract
AimsVascular calcification is a common clinical complication of chronic kidney disease (CKD), atherosclerosis (AS), and diabetes, which is associated with increased cardiovascular morbidity and mortality in patients. The transdifferentiation of vascular smooth muscle cells (VSMCs) to an osteochondrogenic phenotype is a crucial step during vascular calcification. The transcription factor CCAAT/enhancer-binding protein alpha (C/EBPα) plays an important role in regulating cell proliferation and differentiation, but whether it regulates the calcification of arteries and VSMCs remains unclear. Therefore, this study aims to understand the role of C/EBPα in the regulation of vascular calcification.Methods and ResultsBoth mRNA and protein expression levels of C/EBPα were significantly increased in calcified arteries from mice treated with a high dose of vitamin D3 (vD3). Upregulation of C/EBPα was also observed in the high phosphate- and calcium-induced VSMC calcification process. The siRNA-mediated knockdown of C/EBPα significantly attenuated VSMC calcification in vitro. Moreover, C/EBPα depletion in VSMCs significantly reduced the mRNA expression of the osteochondrogenic genes, e.g., sex-determining region Y-box 9 (Sox9). C/EBPα overexpression can induce SOX9 overexpression. Similar changes in the protein expression of SOX9 were also observed in VSMCs after C/EBPα depletion or overexpression. In addition, silencing of Sox9 expression significantly inhibited the phosphate- and calcium-induced VSMC calcification in vitro.ConclusionFindings in this study indicate that C/EBPα is a key regulator of the osteochondrogenic transdifferentiation of VSMCs and vascular calcification, which may represent a novel therapeutic target for vascular calcification.
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Affiliation(s)
- Pengyuan Chen
- Department of Cardiology, Guangdong Provincial People’s Hospital’s Nanhai Hospital, The Second Hospital of Nanhai District Foshan City, Foshan, China
- Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Wanzi Hong
- Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
- School of Medicine, Guangdong Provincial People’s Hospital, South China University of Technology, Guangzhou, China
| | - Ziying Chen
- Department of Pathology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital, Qingyuan, China
| | | | - Siying Wang
- Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Hualin Fan
- School of Medicine, Guangdong Provincial People’s Hospital, South China University of Technology, Guangzhou, China
| | - Yuanhui Liu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yining Dai
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Bo Wang
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Lei Jiang
- School of Medicine, Guangdong Provincial People’s Hospital, South China University of Technology, Guangzhou, China
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- *Correspondence: Lei Jiang,
| | - Hongjiao Yu
- Department of Biochemistry and Molecular Biology, Guangzhou Medical University-Guangzhou Institutes of Biomedicine and Health Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China
- Hongjiao Yu,
| | - PengCheng He
- School of Medicine, Guangdong Provincial People’s Hospital, South China University of Technology, Guangzhou, China
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- PengCheng He,
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27
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Mukherjee S, Park JP, Yun JW. Carboxylesterase3 (Ces3) Interacts with Bone Morphogenetic Protein 11 and Promotes Differentiation of Osteoblasts via Smad1/5/9 Pathway. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-021-0133-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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28
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Zheng Y, Rostami Haji Abadi M, Gough J, Johnston JJD, Nour M, Kontulainen S. Higher Body Fat in Children and Adolescents With Type 1 Diabetes-A Systematic Review and Meta-Analysis. Front Pediatr 2022; 10:911061. [PMID: 35813369 PMCID: PMC9263393 DOI: 10.3389/fped.2022.911061] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
AIMS Higher prevalence of overweight and obesity in children and adolescents with type 1 diabetes (T1D) suggests alterations are required in body composition. However, differences in body composition between children with T1D and typically developing children (TDC) have not been synthesized using meta-analysis. Therefore, we conducted a systematic review and meta-analysis to compare body composition between children with T1D and TDC, and to explore the role of disease and non-disease related factors in potential body composition differences. METHODS Studies were performed comparing dual-energy x-ray absorptiometry-acquired total body fat and lean mass, absolute (kg) and relative (%) values, between children with T1D and TDC. We reported mean differences with 95% confidence intervals (CI) from meta-analysis and relative between-group %-differences. We used meta-regression to explore the role of sex, age, height, body mass, body mass index, Hemoglobin A1c, age of onset, disease duration, and insulin dosage in the potential body composition differences between children with T1D and TDC, and subgroup analysis to explore the role of geographic regions (p < 0.05). RESULTS We included 24 studies (1,017 children with T1D, 1,045 TDC) in the meta-analysis. Children with T1D had 1.2 kg more fat mass (kg) (95%CI 0.3 to 2.1; %-difference = 9.3%), 2.3% higher body fat % (0.3-4.4; 9.0%), but not in lean mass outcomes. Age of onset (β = -2.3, -3.5 to -1.0) and insulin dosage (18.0, 3.5-32.6) were negatively and positively associated with body fat % mean difference, respectively. Subgroup analysis suggested differences among geographic regions in body fat % (p < 0.05), with greater differences in body fat % from Europe and the Middle East. CONCLUSION This meta-analysis indicated 9% higher body fat in children with T1D. Earlier diabetes onset and higher daily insulin dosage were associated with body fat % difference between children with T1D and TDC. Children with T1D from Europe and the Middle East may be more likely to have higher body fat %. More attention in diabetes research and care toward body composition in children with T1D is needed to prevent the early development of higher body fat, and to minimize the cardiovascular disease risk and skeletal deficits associated with higher body fat.
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Affiliation(s)
- Yuwen Zheng
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
| | | | - Jonathan Gough
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
| | - James J D Johnston
- College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Munier Nour
- College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Saija Kontulainen
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
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Tariq S, Tariq S, Khaliq S, Abualhamael SA, Baig M. Association of serum levels of Visfatin, Intelectin-1, RARRES2 and their genetic variants with bone mineral density in postmenopausal females. Front Endocrinol (Lausanne) 2022; 13:1024860. [PMID: 36531488 PMCID: PMC9748547 DOI: 10.3389/fendo.2022.1024860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/01/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Adipokines are engaged in bone physiology and regulate bone mineral density (BMD) by playing protective or cynical role in bone metabolism. The study is designed to measure and compare BMD, adipokines (retinoic acid receptor responder protein-2 RARRES2, visfatin and Intelectin-1) and their genetic variants in postmenopausal osteoporotic, osteopenic and non-osteoporotic females. METHODS This comparative study included postmenopausal non-osteoporotic (n=72), osteopenic (n=72) and osteoporotic (n=100) females with two years of amenorrhea and age between 50 to 70 years. Gold standard DXA was used to measure BMD. Hardy-Weinberg equilibrium was established. Kruskal-Wallis test for comparisons, logistic and multivariate regression analysis were used to rule out the predictors of BMD. RESULTS On comparing the three groups, significant differences were observed in serum RARRES2 (p <0.001) and serum visfatin (p=0.050). The significant positive predictor of BMD at lumbar spine and total hip was serum visfatin. BMD at right and left femoral neck was predicted negatively by serum chemerin while BMD at left femoral neck was also predicted positively by serum calcium levels. There was significant difference in BMD at right femoral neck (p = 0.033) between rs7806429 genotypes. The odds of having low BMD increases with increasing serum levels of chemerin and decreasing serum levels of visfatin and calcium. CONCLUSION The adipokines RARRES2 and visfatin are associated with BMD. RARRES2 is an independent negative and visfatin is positive predictor of BMD in postmenopausal females. BMD at right femoral neck was significantly low in RARRES2 rs7806429 TC heterozygotes.
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Affiliation(s)
- Sundus Tariq
- Department of Physiology, University Medical & Dental College, The University of Faisalabad, Faisalabad, Pakistan
- *Correspondence: Sundus Tariq,
| | - Saba Tariq
- Department of Pharmacology and Therapeutics, University Medical & Dental College, The University of Faisalabad, Faisalabad, Pakistan
| | - Saba Khaliq
- Department of Physiology and Cell Biology, University of Health Sciences, Lahore, Pakistan
| | | | - Mukhtiar Baig
- Department of Clinical Biochemistry, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
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30
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Yang B, Sun H, Jia M, He Y, Luo Y, Wang T, Wu Y, Wang J. DNA damage-inducible transcript 3 restrains osteoclast differentiation and function. Bone 2021; 153:116162. [PMID: 34455116 DOI: 10.1016/j.bone.2021.116162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 02/05/2023]
Abstract
DNA damage-inducible transcript 3 (DDIT3), a member of the CCAAT/enhancer-binding protein (C/EBP) family, is involved in cellular apoptosis and differentiation. DDIT3 participates in the regulation of adipogenesis and osteogenesis in vitro and in vivo. However, the role of DDIT3 in osteoclastogenesis is not yet known. In this study, the involvement of DDIT3 in osteoclast differentiation and function was reported for the first time. CRISPR/Cas9-mediated DDIT3 knockout (KO) mice were generated for functional assessment. Tartrate-resistant acid phosphatase (TRAP) staining of distal femurs showed increased positive cells in DDIT3 KO mice. DDIT3 expression was downregulated during the receptor activator of nuclear factor κB ligand (RANKL)-induced osteoclast differentiation of bone marrow-derived macrophages (BMMs). The loss of DDIT3 increased the expression of osteoclast-specific markers, including nuclear factor of activated T-cells cytoplasmic 1 (NFATc1), TRAP, cathepsin K (CTSK), and dendritic cell-specific transmembrane protein (DC-STAMP) and promoted the formation of TRAP-positive multinucleated osteoclasts. The actin ring number and resorption area of bone slices were also increased in DDIT3 KO BMMs. Lentivirus-mediated DDIT3 overexpression significantly inhibited the osteoclast differentiation of RAW264.7 cells. In the tumor necrosis factor-α-induced osteolysis model, DDIT3 deficiency enhanced osteoclast formation and aggravated bone resorption. DDIT3 inhibited osteoclast differentiation by regulating the C/EBPα-CTSK axis. Furthermore, DDIT3 KO intensified the RANKL-triggered activation of the MAPKs and Akt signaling pathways. Taken together, the results revealed the essential role of DDIT3 in osteoclastogenesis in vitro and in vivo and its close relationship with osteoclast-associated transcription factors and pathways.
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Affiliation(s)
- Beining Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China
| | - Hualing Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China
| | - Meie Jia
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China
| | - Ying He
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China
| | - Yao Luo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China
| | - Tianqi Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China
| | - Yanru Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China.
| | - Jiawei Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China.
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Feng W, Jin Q, Ming-Yu Y, Yang H, Xu T, You-Xing S, Xu-Ting B, Wan C, Yun-Jiao W, Huan W, Ai-Ning Y, Yan L, Hong T, Pan H, Mi-Duo M, Gang H, Mei Z, Xia K, Kang-Lai T. MiR-6924-5p-rich exosomes derived from genetically modified Scleraxis-overexpressing PDGFRα(+) BMMSCs as novel nanotherapeutics for treating osteolysis during tendon-bone healing and improving healing strength. Biomaterials 2021; 279:121242. [PMID: 34768151 DOI: 10.1016/j.biomaterials.2021.121242] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/15/2021] [Accepted: 11/02/2021] [Indexed: 02/07/2023]
Abstract
Osteolysis at the tendon-bone interface can impair pullout strength during tendon-bone healing and lead to surgery failure, but the effects of clinical treatments are not satisfactory. Mesenchymal stem cell (MSC)-derived exosomes have been used as potent and feasible natural nanocarriers for drug delivery and have been proven to enhance tendon-bone healing strength, indicating that MSC-derived exosomes could be a promising therapeutic strategy. In this study, we explored Scleraxis (Scx) dynamically expressed in PDGFRα(+) bone marrow-derived mesenchymal stem cells (BMMSCs) during natural tendon-bone healing. Then, we investigated the role of PDGFRα(+) BMMSCs in tendon-bone healing after Scx overexpression as well as the underlying mechanisms. Our data demonstrated that Scx-overexpressing PDGFRα(+) BMMSCs (BMMSCScx) could efficiently inhibit peritunnel osteolysis and enhance tendon-bone healing strength by preventing osteoclastogenesis in an exosomes-dependent manner. Exosomal RNA-seq revealed that the abundance of a novel miRNA, miR-6924-5p, was highest among miRNAs. miR-6924-5p could directly inhibit osteoclast formation by binding to the 3'-untranslated regions (3'UTRs) of OCSTAMP and CXCL12. Inhibition of miR-6924-5p expression reversed the prevention of osteoclastogenic differentiation by BMMSCScx derived exosomes (BMMSCScx-exos). Local injection of BMMSCScx-exos or miR-6924-5p dramatically reduced osteoclast formation and improved tendon-bone healing strength. Furthermore, delivery of miR-6924-5p efficiently inhibited the osteoclastogenesis of human monocytes. In brief, our study demonstrates that BMMSCScx-exos or miR-6924-5p could serve as a potential therapy for the treatment of osteolysis during tendon-bone healing and improve the outcome.
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Affiliation(s)
- Wang Feng
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Qian Jin
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China; Department of Biochemistry and Molecular Biology, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Yang Ming-Yu
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - He Yang
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Tao Xu
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Shi You-Xing
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Bian Xu-Ting
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Chen Wan
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Wang Yun-Jiao
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Wang Huan
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Yang Ai-Ning
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Li Yan
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Tang Hong
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Huang Pan
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Mu Mi-Duo
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - He Gang
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Zhou Mei
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China
| | - Kang Xia
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China; Department of Biochemistry and Molecular Biology, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
| | - Tang Kang-Lai
- Department of Orthopedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, 400000, China.
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Li J, Lu L, Liu Y, Yu X. Bone marrow adiposity during pathologic bone loss: molecular mechanisms underlying the cellular events. J Mol Med (Berl) 2021; 100:167-183. [PMID: 34751809 DOI: 10.1007/s00109-021-02164-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/09/2021] [Accepted: 11/03/2021] [Indexed: 02/05/2023]
Abstract
Bone marrow (BM) is a heterogeneous niche where bone marrow stromal cells (BMSCs), osteoblasts, osteoclasts, adipocytes, hematopoietic cells, and immune cells coexist. The cellular composition of BM changes with various pathophysiological states. A reduction in osteoblast number and a concomitant increase in adipocyte number in aging and pathological conditions put bone marrow adipose tissue (BMAT) into spotlight. Accumulating evidence strongly supports that an overwhelming production of BMAT is a major contributor to bone loss disorders. Therefore, BMAT-targeted therapy can be an efficient and feasible intervention for osteoporosis. However, compared to blocking bone-destroying molecules produced by BMAT, suppressing BMAT formation is theoretically a more effective and fundamental approach in treating osteoporotic bone diseases. Thus, a deep insight into the molecular basis underlying increased BM adiposity during pathologic bone loss is critical to formulate strategies for therapeutically manipulating BMAT. In this review, we comprehensively summarize the molecular mechanisms involved in adipocyte differentiation of BMSCs as well as the interaction between bone marrow adipocytes and osteoclasts. More importantly, we further discuss the potential clinical implications of therapeutically targeting the upstream of BMAT formation in bone loss diseases.
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Affiliation(s)
- Jiao Li
- Department of Endocrinology and Metabolism, Laboratory of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, No.37 Guoxue Alley, Wuhou District, Chengdu, 610041, Sichuan Province, China
| | - Lingyun Lu
- Department of Endocrinology and Metabolism, Laboratory of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, No.37 Guoxue Alley, Wuhou District, Chengdu, 610041, Sichuan Province, China
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yi Liu
- Department of Rheumatology and Immunology, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xijie Yu
- Department of Endocrinology and Metabolism, Laboratory of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, No.37 Guoxue Alley, Wuhou District, Chengdu, 610041, Sichuan Province, China
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Belyavsky A, Petinati N, Drize N. Hematopoiesis during Ontogenesis, Adult Life, and Aging. Int J Mol Sci 2021; 22:ijms22179231. [PMID: 34502137 PMCID: PMC8430730 DOI: 10.3390/ijms22179231] [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: 06/25/2021] [Revised: 08/13/2021] [Accepted: 08/24/2021] [Indexed: 12/17/2022] Open
Abstract
In the bone marrow of vertebrates, two types of stem cells coexist-hematopoietic stem cells (HSCs) and mesenchymal stem cells (MSCs). Hematopoiesis only occurs when these two stem cell types and their descendants interact. The descendants of HSCs supply the body with all the mature blood cells, while MSCs give rise to stromal cells that form a niche for HSCs and regulate the process of hematopoiesis. The studies of hematopoiesis were initially based on morphological observations, later extended by the use of physiological methods, and were subsequently augmented by massive application of sophisticated molecular techniques. The combination of these methods produced a wealth of new data on the organization and functional features of hematopoiesis in the ontogenesis of mammals and humans. This review summarizes the current views on hematopoiesis in mice and humans, discusses the development of blood elements and hematopoiesis in the embryo, and describes how the hematopoietic system works in the adult organism and how it changes during aging.
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Affiliation(s)
- Alexander Belyavsky
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia;
| | | | - Nina Drize
- National Research Center for Hematology, 125167 Moscow, Russia;
- Correspondence:
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Wang H, Wei P, Zhang Y, Li Y, Yin L. LncRNA TCONS_00023297 Regulates the Balance of Osteogenic and Adipogenic Differentiation in Bone Marrow Mesenchymal Stem Cells and the Coupling Process of Osteogenesis and Angiogenesis. Front Cell Dev Biol 2021; 9:697858. [PMID: 34262909 PMCID: PMC8274487 DOI: 10.3389/fcell.2021.697858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 05/27/2021] [Indexed: 12/01/2022] Open
Abstract
Long noncoding RNA (lncRNA) is a noncoding RNA with a length of more than 200 bases. It plays an important role in the occurrence and development of diseases. Research on lncRNAs has received increasing attention. Bone is an important organ of the human body. As the population ages, the incidence of osteoporosis gradually increases. The mechanism of action of lncRNAs in the development of osteoporosis is unclear. The imbalance between osteogenic and adipogenic differentiation in bone marrow mesenchymal stem cells (hBMSCs) and the coupling process of osteogenesis and angiogenesis plays an important role in the development of osteoporosis. Therefore, this study focused on the mechanism by which lncRNAs regulate the osteogenic differentiation of bone marrow mesenchymal stem cells and the mechanism of action of lncRNAs in bone metabolism. The expression of lncRNAs in the osteogenic differentiation of hBMSCs was detected by lncRNA microarray. Real-time quantitative PCR was used to detect the expression changes of lncRNA and osteogenic genes during hBMSC osteogenic and adipogenic differentiation. The ceRNA mechanisms were detected by RIP and luciferase reporter gene assays. The effect of lncRNAs on the osteogenesis–angiogenesis coupling process was detected by Transwell assays. TCONS_00023297 increased expression during osteogenic differentiation; TCONS_00023297 overexpression promoted osteogenic differentiation of hBMSCs; BMP2 regulated TCONS_00023297 expression in a concentration- and time-dependent manner; TCONS_00023297 regulated miR-608 via a ceRNA mechanism; TCONS_00023297 inhibited hBMSC adipogenic differentiation; and TCONS_00023297 promoted VEGF secretion by hBMSCs. TCONS_00023297 regulates osteogenic differentiation, adipogenic differentiation, and osteogenic–angiogenic coupling of hBMSCs via the TCONS_00023297/miR-608/RUNX2/SHH signaling axis.
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Affiliation(s)
- Haitao Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Peng Wei
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yi Zhang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuebai Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Li Yin
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Zhang Z, Lin T, Meng Y, Hu M, Shu L, Jiang H, Gao R, Ma J, Wang C, Zhou X. FOS/GOS attenuates high-fat diet induced bone loss via reversing microbiota dysbiosis, high intestinal permeability and systemic inflammation in mice. Metabolism 2021; 119:154767. [PMID: 33753088 DOI: 10.1016/j.metabol.2021.154767] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 03/03/2021] [Accepted: 03/17/2021] [Indexed: 01/26/2023]
Abstract
BACKGROUND Obesity and osteoporosis frequently coexist, and might have a causal relationship. Gut microbiota, associated with both lipid and bone metabolism, plays an important role in the pathogenesis of excessive fat accumulation and bone loss. The improvement of intestinal flora by prebiotics was a promising strategy for ameliorating obesity-related bone loss. METHODS Obesity model was established by feeding mice with high fat diet (HFD) for 16 weeks. Fructooligosaccharides (FOS) and/or galactooligosaccharides (GOS) were daily gavaged to mice. Osteoblastic, adipocytic, and osteoclastic differentiation was performed on primary cells isolated from experimental mice. The composition of gut flora was evaluated by 16s rDNA sequencing. Expression of intestinal junction proteins was assessed by qPCR and immunohistochemistry. Cytokine levels were measured by qPCR. RESULTS Long-term HFD caused decreased bone mass in mice, which was associated with decreased osteogenesis, increased osteoclastogenesis, and excessive adipogenesis. FOS/GOS treatment significantly alleviated HFD-induced bone loss and reversed the imbalanced differentiation of osteoblasts, adipocytes, and osteoclasts. In addition, our study showed that FOS/GOS administration ameliorated microbiota dysbiosis (manifested as enhanced Firmicutes:Bacteriodetes ratio and reduced biodiversity), downregulated expression of intestinal junction proteins (including Claudin1, Claudin15, ZO-1, and JAM-A), and increased inflammatory cytokines (including TNFα, IL6, and IL17) in HFD-fed mice. CONCLUSION Long-term HFD led to decreased bone mass, with microbiota dysbiosis, leaky gut, and systemic inflammation. The administration of FOS/GOS could significantly increase biodiversity and SCFA concentrations of intestinal flora in HFD fed mice, then reverse high gut permeability and inflammatory cytokines, in the end protect against HFD induced osteopenia.
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Affiliation(s)
- Zheng Zhang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China; College of basic medicine, Second Military Medical University, 800 Xiangyin Road, Shanghai 200433, People's Republic of China
| | - Tao Lin
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China
| | - Yichen Meng
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China
| | - Miao Hu
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China; College of basic medicine, Second Military Medical University, 800 Xiangyin Road, Shanghai 200433, People's Republic of China
| | - Lun Shu
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China; College of basic medicine, Second Military Medical University, 800 Xiangyin Road, Shanghai 200433, People's Republic of China
| | - Heng Jiang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China
| | - Rui Gao
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China
| | - Jun Ma
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China.
| | - Ce Wang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China.
| | - Xuhui Zhou
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, People's Republic of China.
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He HP, Gu S. The PPAR-γ/SFRP5/Wnt/β-catenin signal axis regulates the dexamethasone-induced osteoporosis. Cytokine 2021; 143:155488. [PMID: 33814272 DOI: 10.1016/j.cyto.2021.155488] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND The inhibition of glucocorticoid (GC) on osteoblastic differentiation of bone marrow stromal stem cells (BMSC) is an important pathway for GC to reduce bone formation. Recent studies implicated an important role of peroxisome proliferator-activated receptor-gamma (PPAR-γ) in GC-mediated cell proliferation and differentiation. Thus, our purpose is to investigate the role of PPAR-γ in regulating rat BMSC (rBMSC) osteoblastic differentiation. METHODS The rBMSC treated with dexamethasone (Dex) was used to construct an in vitro cell model of GC-induced osteoporosis. The expressions of PPAR-γ, RUNX2, ALP, OPN and SFRP5 in cells were detected by RT-qPCR and western blot assays. Osteogenic differentiation of rBMSC was measured by Alizarin Red S (ARS) staining analysis. Lentivirus-delivered shRNA was used to knock down PPAR-γ or SFRP5, and lentivirus-delivered constructs were used to overexpress SFRP5 in rBMSC to verify the effect of PPAR-γ or SFRP5 on cell osteogenic differentiation. RESULTS Dex significantly reduced rBMSC osteoblastic differentiation. The expression of PPAR-γ was enhanced in Dex treated rBMSC. PPAR-γ down-regulation improved Dex inhibition of rBMSC osteogenic differentiation. Moreover, PPAR-γ knockdown promoted protein levels of RUNX2, ALP, OPN and Dex-decreased rBMSC osteogenic differentiation. The expression of SFRP5 was reduced while Wnt and β-catenin were increased in PPAR-γ knockdown and Dex treated rBMSC. Moreover, the up-regulation of SFRP5 reversed the osteogenic differentiation of rBMSC induced by PPAR-γ knockdown. CONCLUSION These data indicated that in GC-induced osteoporosis, PPAR-γ/SFRP5 affects osteogenic differentiation by regulating the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Hai-Peng He
- Shenzhen Institute of ENT & Longgang ENT Hospital, Shenzhen 518172, China
| | - Shan Gu
- Shenzhen Institute of ENT & Longgang ENT Hospital, Shenzhen 518172, China.
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Soni S, Torvund M, Mandal CC. Molecular insights into the interplay between adiposity, breast cancer and bone metastasis. Clin Exp Metastasis 2021; 38:119-138. [PMID: 33591548 DOI: 10.1007/s10585-021-10076-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 02/03/2021] [Indexed: 01/20/2023]
Abstract
Cancer is a complex disease, with various pre-existing health ailments enhancing its pathology. In cancer, the extracellular environment contains various intrinsic physiological factors whose levels are altered with aging and pre-existing conditions. In obesity, the tumor microenvironment and metastases are enriched with factors that are both derived locally, and from other physiological compartments. Similarly, in obesity, the cancer cell environment both at the site of origin and at the secondary site i.e., metastatic niche, contains significantly more phenotypically-altered adipocytes than that of un-obese cancer patients. Indeed, obesity has been linked with cancer progression, metastasis, and therapy resistance. Adipocytes not only interact with tumor cells, but also with adjacent stromal cells at primary and metastatic sites. This review emphasizes the importance of bidirectional interactions between adipocytes and breast tumor cells in breast cancer progression and its bone metastases. This paper not only chronicles the role of various adipocyte-derived factors in tumor growth, but also describes the significance of adipocyte-derived bone metastatic factors in the development of bone metastasis of breast cancer. It provides a molecular view of the interplay between the adipocytes and tumor cells involved in breast cancer bone metastasis. However, more research is needed to determine if targeting cancer-associated adipocytes holds promise as a potential therapeutic approach for breast cancer bone metastasis treatment. Interplay between adipocytes and breast cancer cells at primary cancer site and metastatic bone microenvironment. AMSC Adipose-derived mesenchymal stem cell, CAA Cancer associated adipocytes, CAF Cancer associated fibroblast, BMSC Bone marrow derived mesenchymal stem cell, BMA Bone marrow adipocyte.
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Affiliation(s)
- Sneha Soni
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, Ajmer, Rajasthan, 305817, India
| | - Meaghan Torvund
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, USA
| | - Chandi C Mandal
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, Ajmer, Rajasthan, 305817, India.
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Manickam R, Duszka K, Wahli W. PPARs and Microbiota in Skeletal Muscle Health and Wasting. Int J Mol Sci 2020; 21:ijms21218056. [PMID: 33137899 PMCID: PMC7662636 DOI: 10.3390/ijms21218056] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 10/24/2020] [Accepted: 10/26/2020] [Indexed: 02/06/2023] Open
Abstract
Skeletal muscle is a major metabolic organ that uses mostly glucose and lipids for energy production and has the capacity to remodel itself in response to exercise and fasting. Skeletal muscle wasting occurs in many diseases and during aging. Muscle wasting is often accompanied by chronic low-grade inflammation associated to inter- and intra-muscular fat deposition. During aging, muscle wasting is advanced due to increased movement disorders, as a result of restricted physical exercise, frailty, and the pain associated with arthritis. Muscle atrophy is characterized by increased protein degradation, where the ubiquitin-proteasomal and autophagy-lysosomal pathways, atrogenes, and growth factor signaling all play an important role. Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear receptor family of transcription factors, which are activated by fatty acids and their derivatives. PPARs regulate genes that are involved in development, metabolism, inflammation, and many cellular processes in different organs. PPARs are also expressed in muscle and exert pleiotropic specialized responses upon activation by their ligands. There are three PPAR isotypes, viz., PPARα, -β/δ, and -γ. The expression of PPARα is high in tissues with effective fatty acid catabolism, including skeletal muscle. PPARβ/δ is expressed more ubiquitously and is the predominant isotype in skeletal muscle. It is involved in energy metabolism, mitochondrial biogenesis, and fiber-type switching. The expression of PPARγ is high in adipocytes, but it is also implicated in lipid deposition in muscle and other organs. Collectively, all three PPAR isotypes have a major impact on muscle homeostasis either directly or indirectly. Furthermore, reciprocal interactions have been found between PPARs and the gut microbiota along the gut–muscle axis in both health and disease. Herein, we review functions of PPARs in skeletal muscle and their interaction with the gut microbiota in the context of muscle wasting.
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Affiliation(s)
- Ravikumar Manickam
- Department of Pharmaceutical Sciences, University of South Florida, 12901 Bruce B. Downs Blvd., Tampa, FL 33612, USA;
| | - Kalina Duszka
- Department of Nutritional Sciences, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria;
| | - Walter Wahli
- Center for Integrative Genomics, University of Lausanne, Le Génopode, CH-1015 Lausanne, Switzerland
- Toxalim, INRAE, Chemin de Tournefeuille 180, F-31027 Toulouse, France
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, 11 Mandalay Road, Singapore 308232, Singapore
- Correspondence:
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Ren L, Chen X, Chen X, Li J, Cheng B, Xia J. Mitochondrial Dynamics: Fission and Fusion in Fate Determination of Mesenchymal Stem Cells. Front Cell Dev Biol 2020; 8:580070. [PMID: 33178694 PMCID: PMC7593605 DOI: 10.3389/fcell.2020.580070] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are pivotal to tissue homeostasis, repair, and regeneration due to their potential for self-renewal, multilineage differentiation, and immune modulation. Mitochondria are highly dynamic organelles that maintain their morphology via continuous fission and fusion, also known as mitochondrial dynamics. MSCs undergo specific mitochondrial dynamics during proliferation, migration, differentiation, apoptosis, or aging. Emerging evidence suggests that mitochondrial dynamics are key contributors to stem cell fate determination. The coordination of mitochondrial fission and fusion is crucial for cellular function and stress responses, while abnormal fission and/or fusion causes MSC dysfunction. This review focuses on the role of mitochondrial dynamics in MSC commitment under physiological and stress conditions. We highlight mechanistic insights into modulating mitochondrial dynamics and mitochondrial strategies for stem cell-based regenerative medicine. These findings shed light on the contribution of mitochondrial dynamics to MSC fate and MSC-based tissue repair.
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Affiliation(s)
- Lin Ren
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiaodan Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiaobing Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Jiayan Li
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Bin Cheng
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Juan Xia
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
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Molecular Mechanisms and Emerging Therapeutics for Osteoporosis. Int J Mol Sci 2020; 21:ijms21207623. [PMID: 33076329 PMCID: PMC7589419 DOI: 10.3390/ijms21207623] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/09/2020] [Accepted: 10/11/2020] [Indexed: 12/15/2022] Open
Abstract
Osteoporosis is the most common chronic metabolic bone disease. It has been estimated that more than 10 million people in the United States and 200 million men and women worldwide have osteoporosis. Given that the aging population is rapidly increasing in many countries, osteoporosis could become a global challenge with an impact on the quality of life of the affected individuals. Osteoporosis can be defined as a condition characterized by low bone density and increased risk of fractures due to the deterioration of the bone architecture. Thus, the major goal of treatment is to reduce the risk for fractures. There are several treatment options, mostly medications that can control disease progression in risk groups, such as postmenopausal women and elderly men. Recent studies on the basic molecular mechanisms and clinical implications of osteoporosis have identified novel therapeutic targets. Emerging therapies targeting novel disease mechanisms could provide powerful approaches for osteoporosis management in the future. Here, we review the etiology of osteoporosis and the molecular mechanism of bone remodeling, present current pharmacological options, and discuss emerging therapies targeting novel mechanisms, investigational treatments, and new promising therapeutic approaches.
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Liu LL, Cao ZH, He CL, Zhong YC, Liu WY, Zhang P, Yang F, Xu YJ. Ferric Ion Induction of Triggering Receptor Expressed in Myeloid Cells-2 Expression and PI3K/Akt Signaling Pathway in Preosteoclast Cells to Promote Osteoclast Differentiation. Orthop Surg 2020; 12:1304-1312. [PMID: 32729185 PMCID: PMC7454152 DOI: 10.1111/os.12750] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/24/2020] [Accepted: 06/18/2020] [Indexed: 12/16/2022] Open
Abstract
Objective Iron plays a significant role in multiple biological processes. The purpose of this study was to measure whether iron mediated osteoclast differentiation through regulation of triggering receptor expressed in myeloid cells‐2 (Trem‐2) expression and the PI3K/Akt signaling pathway. Methods The effects of six different concentrations of ferric ammonium citrate (FAC) (100, 80, 40, 20, 10 and 0 μmol/L) on RAW 264.7 cells proliferation were assessed by Cell Counting Kit‐8 (CCK‐8) gassay. Tartrate resistant acid phosphatase (TRAP) assay was performed to detect the effects of FAC on osteoclast formation. The expression of osteoclast differentiation‐related (TRAP, NFATc‐1, and c‐Fos) and Trem‐2 mRNA and proteins was analyzed by reverse transcription‐polymerase chain reaction and western blot, respectively. Si‐Trem‐2 was constructed and transfected to RAW264.7 to measure the effects of Trem‐2 on FAC‐mediated osteoclast formation. TRAP assay and osteoclast differentiation‐related gene analyses were further performed to identify the role of Trem‐2 in osteoclastogenesis. The Search Tool for the Retrieval of Interacting Genes (STRING) was used to explore the target genes of Trem‐2. Trem‐2‐related gene ontology and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway were used for further in‐depth analysis. PI3K/Akt pathway‐related proteins were detected by immunofluorescence and western blot. Results In groups with FAC concentration of 10 (102.5 ± 3.1), 20 (100.5 ± 1.5), and 40 μmol/L (98.7 ± 3.1), compared with the control group (100.1 ± 2.2), cell viability was not significantly different from the control (P > 0.05). When the concentration of FAC exceeded 80 μmol/L, cell viability was significantly decreased (87.5 ± 2.8 vs 100.1 ± 2.2, P < 0.05). FAC promotes Trem‐2 expression and osteoclast differentiation in a dose‐response manner (P < 0.05). The number of osteoclast‐like cells was found to be reduced following transfection with the siRNA of Trem‐2 (42 ± 3 vs 30 ± 5, P < 0.05). We observed that most of Trem‐2 target genes are primarily involved in response to organic substance, regulation of reactive oxygen species metabolic process, and regulation of protein phosphorylation. The STRING database revealed that Trem‐2 directly target two gene nodes (Pik3ca and Pik3r1), which are key transcriptional cofactors of the PI3K/Akt signaling pathway. KEGG pathways include the “PI3K‐Akt signaling pathway,” the “thyroid hormone signaling pathway”, “prostate cancer,” the “longevity regulating pathway,” and “insulin resistance.” Expression of p‐PI3K and p‐Akt protein, measured by immunofluorescence and western blotting, was markedly increased in the FAC groups. Trem‐2 siRNA caused partial reduction of these two proteins (p‐PI3K and p‐Akt) compared to the FAC alone group. Conclusion The FAC promoted osteoclast differentiation through the Trem‐2‐mediated PI3K/Akt signaling pathway. However, its regulation osteoclastogenesis should be verified through further in vivo studies.
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Affiliation(s)
- Lu-Lin Liu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Department of Orthopaedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Zi-Hou Cao
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Chun-Lei He
- Department of Orthopaedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Yan-Chun Zhong
- Department of Orthopaedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Wu-Yang Liu
- Department of Orthopaedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Peng Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Fan Yang
- Osteoporosis Institute of Soochow University, Suzhou, China
| | - You-Jia Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Osteoporosis Institute of Soochow University, Suzhou, China
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Tang L, Xu M, Zhang L, Qu L, Liu X. Role of αVβ3 in Prostate Cancer: Metastasis Initiator and Important Therapeutic Target. Onco Targets Ther 2020; 13:7411-7422. [PMID: 32801764 PMCID: PMC7395689 DOI: 10.2147/ott.s258252] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 06/19/2020] [Indexed: 12/14/2022] Open
Abstract
In prostate cancer, distant organ metastasis is the leading cause of patient death. Although the mechanism of malignant tumor metastasis is unclear, studies have confirmed that integrin αVβ3 plays an important role in this process. In prostate cancer, αVβ3 mediates adhesion, invasion, immune escape and neovascularization through interactions with different ligands. Among these ligands and in addition to proteins that are directly related to tumor invasion, other proteins that contain the RGD structure could also bind to αVβ3 and cause a number of biological effects. In this article, we summarized the ligand and downstream proteins related to αVβ3-mediated prostate cancer metastasis as well as some diagnostic and therapeutic measures targeting αVβ3.
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Affiliation(s)
- Lin Tang
- College of Mathematics and Computer Science, Chifeng University, Chifeng, The Inner Mongol Autonomous Region 024005, People's Republic of China
| | - Meng Xu
- Department of Urology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, People's Republic of China.,R&D Department, Seekgene Technology Co., Ltd, Beijing 100000, People's Republic of China
| | - Long Zhang
- Department of Hepatobiliary Surgery, Yidu Central Hospital, Weifang, Shandong 262500, People's Republic of China
| | - Lin Qu
- Department of Orthopaedic Surgery, Anshan Hospital of the First Hospital of China Medical University, Anshan, Liaoning 114000, People's Republic of China
| | - Xiaoyan Liu
- Department of Pathology, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100000, People's Republic of China
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Alekos NS, Moorer MC, Riddle RC. Dual Effects of Lipid Metabolism on Osteoblast Function. Front Endocrinol (Lausanne) 2020; 11:578194. [PMID: 33071983 PMCID: PMC7538543 DOI: 10.3389/fendo.2020.578194] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 08/25/2020] [Indexed: 12/14/2022] Open
Abstract
The skeleton is a dynamic and metabolically active organ with the capacity to influence whole body metabolism. This newly recognized function has propagated interest in the connection between bone health and metabolic dysfunction. Osteoblasts, the specialized mesenchymal cells responsible for the production of bone matrix and mineralization, rely on multiple fuel sources. The utilization of glucose by osteoblasts has long been a focus of research, however, lipids and their derivatives, are increasingly recognized as a vital energy source. Osteoblasts possess the necessary receptors and catabolic enzymes for internalization and utilization of circulating lipids. Disruption of these processes can impair osteoblast function, resulting in skeletal deficits while simultaneously altering whole body lipid homeostasis. This article provides an overview of the metabolism of postprandial and stored lipids and the osteoblast's ability to acquire and utilize these molecules. We focus on the requirement for fatty acid oxidation and the pathways regulating this function as well as the negative impact of dyslipidemia on the osteoblast and skeletal health. These findings provide key insights into the nuances of lipid metabolism in influencing skeletal homeostasis which are critical to appreciate the extent of the osteoblast's role in metabolic homeostasis.
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Affiliation(s)
- Nathalie S. Alekos
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Megan C. Moorer
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Baltimore Veterans Administration Medical Center, Baltimore, MD, United States
| | - Ryan C. Riddle
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Baltimore Veterans Administration Medical Center, Baltimore, MD, United States
- *Correspondence: Ryan C. Riddle
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