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He Z, Sun C, Ma Y, Chen X, Wang Y, Chen K, Xie F, Zhang Y, Yuan Y, Liu C. Rejuvenating Aged Bone Repair through Multihierarchy Reactive Oxygen Species-Regulated Hydrogel. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2306552. [PMID: 37848015 DOI: 10.1002/adma.202306552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/05/2023] [Indexed: 10/19/2023]
Abstract
Aging exacerbates the dysfunction of tissue regeneration at multiple levels and gradually diminishes individual's capacity to withstand stress, damage, and disease. The excessive accumulation of reactive oxygen species (ROS) is considered a hallmark feature of senescent stem cells, which causes oxidative stress, deteriorates the host microenvironment, and eventually becomes a critical obstacle for aged bone defect repair. Till now, the strategies cannot synchronously and thoroughly regulate intracellular and extracellular ROS in senescent cells. Herein, a multihierarchy ROS scavenging system for aged bone regeneration is developed by fabricating an injectable PEGylated poly(glycerol sebacate) (PEGS-NH2 )/poly(γ-glutamic acid) (γ-PGA) hydrogel containing rapamycin-loaded poly(diselenide-carbonate) nanomicelles (PSeR). This PSeR hydrogel exhibits highly sensitive ROS responsiveness to the local aged microenvironment and dynamically releases drug-loaded nanomicelles to scavenge the intracellular ROS accumulated in senescent bone mesenchymal stem cells. The PSeR hydrogel effectively tunes the antioxidant function and delays senescence of bone mesenchymal stem cells by safeguarding DNA replication in an oxidative environment, thereby promoting the self-renewal ability and enhancing the osteogenic capacity for aged bone repair in vitro and in vivo. Thus, this multihierarchy ROS-regulated hydrogel provides a new strategy for treating degenerative diseases.
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Affiliation(s)
- Zirui He
- Basic Science Center Project of National Natural Science Foundation of China, Key Laboratory for Ultrafine Materials of Ministry of Education and School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Chuanhao Sun
- Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Yifan Ma
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Xi Chen
- Basic Science Center Project of National Natural Science Foundation of China, Key Laboratory for Ultrafine Materials of Ministry of Education and School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Ying Wang
- Basic Science Center Project of National Natural Science Foundation of China, Key Laboratory for Ultrafine Materials of Ministry of Education and School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Kai Chen
- Basic Science Center Project of National Natural Science Foundation of China, Key Laboratory for Ultrafine Materials of Ministry of Education and School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Fangru Xie
- Basic Science Center Project of National Natural Science Foundation of China, Key Laboratory for Ultrafine Materials of Ministry of Education and School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Yan Zhang
- Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Yuan Yuan
- Basic Science Center Project of National Natural Science Foundation of China, Key Laboratory for Ultrafine Materials of Ministry of Education and School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Changsheng Liu
- Basic Science Center Project of National Natural Science Foundation of China, Key Laboratory for Ultrafine Materials of Ministry of Education and School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
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Li D, Gao Z, Li Q, Liu X, Liu H. Cuproptosis-a potential target for the treatment of osteoporosis. Front Endocrinol (Lausanne) 2023; 14:1135181. [PMID: 37214253 PMCID: PMC10196240 DOI: 10.3389/fendo.2023.1135181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/10/2023] [Indexed: 05/24/2023] Open
Abstract
Osteoporosis is an age-related disease of bone metabolism marked by reduced bone mineral density and impaired bone strength. The disease causes the bones to weaken and break more easily. Osteoclasts participate in bone resorption more than osteoblasts participate in bone formation, disrupting bone homeostasis and leading to osteoporosis. Currently, drug therapy for osteoporosis includes calcium supplements, vitamin D, parathyroid hormone, estrogen, calcitonin, bisphosphates, and other medications. These medications are effective in treating osteoporosis but have side effects. Copper is a necessary trace element in the human body, and studies have shown that it links to the development of osteoporosis. Cuproptosis is a recently proposed new type of cell death. Copper-induced cell death regulates by lipoylated components mediated via mitochondrial ferredoxin 1; that is, copper binds directly to the lipoylated components of the tricarboxylic acid cycle, resulting in lipoylated protein accumulation and subsequent loss of iron-sulfur cluster proteins, leading to proteotoxic stress and eventually cell death. Therapeutic options for tumor disorders include targeting the intracellular toxicity of copper and cuproptosis. The hypoxic environment in bone and the metabolic pathway of glycolysis to provide energy in cells can inhibit cuproptosis, which may promote the survival and proliferation of various cells, including osteoblasts, osteoclasts, effector T cells, and macrophages, thereby mediating the osteoporosis process. As a result, our group tried to explain the relationship between the role of cuproptosis and its essential regulatory genes, as well as the pathological mechanism of osteoporosis and its effects on various cells. This study intends to investigate a new treatment approach for the clinical treatment of osteoporosis that is beneficial to the treatment of osteoporosis.
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Affiliation(s)
- Dinglin Li
- Department of Integrated Traditional Chinese and Western Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhonghua Gao
- Department of Geriatrics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Li
- Department of Integrated Traditional Chinese and Western Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangjie Liu
- Department of Geriatrics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hao Liu
- Department of Integrated Traditional Chinese and Western Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Choi JY, Yee SF, Tchangalova T, Yang G, Fisher JP. Recent Advances in Senotherapeutics Delivery. TISSUE ENGINEERING. PART B, REVIEWS 2022; 28:1223-1234. [PMID: 35451328 PMCID: PMC9805860 DOI: 10.1089/ten.teb.2021.0212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 04/12/2022] [Indexed: 01/13/2023]
Abstract
Accumulation of senescent cells (SnCs) in various tissue types has been connected to an occurrence of different age-related diseases that are indicated by its own tissue-specific hallmarks. Discovery of novel senolytic compounds that target major cellular mechanisms to inhibit the level of SnCs within the specific tissues or organs has been an emerging field in the age-related disease research. Although the positive effect of senolytics in global suppression of SnCs has been well studied in the past, effective tissue-specific delivery strategy of senotherapeutics before clinical application needs to be further investigated. In this review, we discuss the latest biological insights to currently available senotherapeutic options and explore the impactful in vitro tissue-engineered models possibly as a testbed for replicable testing of tissue-specific potency of senolytics. Impact statement Senotherapy, the inhibition of accumulated senescent cells, is recognized as a significantly impactful way to treat various human diseases. However, there is limited comprehensive reviews on this topic. This review provides in-depth discussion on diverse delivery strategies of senolytic agents and latest updates on a novel senotherapeutic research.
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Affiliation(s)
- Ji Young Choi
- Tissue Engineering and Biomaterials Laboratory, Fischell Department of Bioengineering, A. James Clark School of Engineering, University of Maryland, College Park, Maryland, USA
- NIBIB/NIH Center of Engineering Complex Tissues, University of Maryland, College Park, Maryland, USA
| | - Samantha F. Yee
- Tissue Engineering and Biomaterials Laboratory, Fischell Department of Bioengineering, A. James Clark School of Engineering, University of Maryland, College Park, Maryland, USA
| | - Tzvetelina Tchangalova
- Tissue Engineering and Biomaterials Laboratory, Fischell Department of Bioengineering, A. James Clark School of Engineering, University of Maryland, College Park, Maryland, USA
| | - Guang Yang
- Tissue Engineering and Biomaterials Laboratory, Fischell Department of Bioengineering, A. James Clark School of Engineering, University of Maryland, College Park, Maryland, USA
| | - John P. Fisher
- Tissue Engineering and Biomaterials Laboratory, Fischell Department of Bioengineering, A. James Clark School of Engineering, University of Maryland, College Park, Maryland, USA
- NIBIB/NIH Center of Engineering Complex Tissues, University of Maryland, College Park, Maryland, USA
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Sheng MHC, Lau KHW, Rundle CH, Alsunna A, Wilson SM, Baylink DJ. Defective bone repletion in aged Balb/cBy mice was caused by impaired osteoblastic differentiation. J Bone Miner Metab 2022; 40:900-913. [PMID: 35947191 PMCID: PMC9722502 DOI: 10.1007/s00774-022-01361-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/13/2022] [Indexed: 12/25/2022]
Abstract
INTRODUCTION This study was undertaken to gain mechanistic information about bone repair using the bone repletion model in aged Balb/cBy mice. MATERIALS AND METHODS one month-old (young) mice were fed a calcium-deficient diet for 2 weeks and 8 month-old (adult) and 21-25 month-old (aged) female mice for 4 weeks during depletion, which was followed by feeding a calcium-sufficient diet for 16 days during repletion. To determine if prolonged repletion would improve bone repair, an additional group of aged mice were repleted for 4 additional weeks. Control mice were fed calcium-sufficient diet throughout. In vivo bone repletion response was assessed by bone mineral density gain and histomorphometry. In vitro response was monitored by osteoblastic proliferation, differentiation, and senescence. RESULTS There was no significant bone repletion in aged mice even with an extended repletion period, indicating an impaired bone repletion. This was not due to an increase in bone cell senescence or reduction in osteoblast proliferation, but to dysfunctional osteoblastic differentiation in aged bone cells. Osteoblasts of aged mice had elevated levels of cytosolic and ER calcium, which were associated with increased Cav1.2 and CaSR (extracellular calcium channels) expression but reduced expression of Orai1 and Stim1, key components of Stored Operated Ca2+ Entry (SOCE). Activation of Cav1.2 and CaSR leads to increased osteoblastic proliferation, but activation of SOCE is associated with osteoblastic differentiation. CONCLUSION The bone repletion mechanism in aged Balb/cBy mice is defective that is caused by an impaired osteoblast differentiation through reducedactivation of SOCE.
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Affiliation(s)
- Matilda H-C Sheng
- Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA.
- Musculoskeletal Disease Center (151), Jerry L. Pettis Memorial V.A. Medical Center, 11201 Benton Street, Loma Linda, CA, 92357, USA.
| | - Kin-Hing William Lau
- Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
- Musculoskeletal Disease Center (151), Jerry L. Pettis Memorial V.A. Medical Center, 11201 Benton Street, Loma Linda, CA, 92357, USA
| | - Charles H Rundle
- Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
- Musculoskeletal Disease Center (151), Jerry L. Pettis Memorial V.A. Medical Center, 11201 Benton Street, Loma Linda, CA, 92357, USA
| | - Anar Alsunna
- Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
| | - Sean M Wilson
- Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
| | - David J Baylink
- Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
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Marinkovic M, Dai Q, Gonzalez AO, Tran ON, Block TJ, Harris SE, Salmon AB, Yeh CK, Dean DD, Chen XD. Matrix-bound Cyr61/CCN1 is required to retain the properties of the bone marrow mesenchymal stem cell niche but is depleted with aging. Matrix Biol 2022; 111:108-132. [PMID: 35752272 PMCID: PMC10069241 DOI: 10.1016/j.matbio.2022.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 05/30/2022] [Accepted: 06/22/2022] [Indexed: 11/17/2022]
Abstract
Previously, we showed that extracellular matrices (ECMs), produced ex vivo by various types of stromal cells, direct bone marrow mesenchymal stem cells (BM-MSCs) in a tissue-specific manner and recapitulate physiologic changes characteristic of the aging microenvironment. In particular, BM-MSCs obtained from elderly donors and cultured on ECM produced by young BM stromal cells showed improved quantity, quality and osteogenic differentiation. In the present study, we searched for matrix components that are required for a functional BM-MSC niche by comparing ECMs produced by BM stromal cells from "young" (≤25 y/o) versus "elderly" (≥60 y/o) donors. With increasing donor age, ECM fibrillar organization and mechanical integrity deteriorated, along with the ability to promote BM-MSC proliferation and responsiveness to growth factors. Proteomic analyses revealed that the matricellular protein, Cyr61/CCN1, was present in young, but undetectable in elderly, BM-ECM. To assess the role of Cyr61 in the BM-MSC niche, we used genetic methods to down-regulate the incorporation of Cyr61 during production of young ECM and up-regulate its incorporation in elderly ECM. The results showed that Cyr61-depleted young ECM lost the ability to promote BM-MSC proliferation and growth factor responsiveness. However, up-regulating the incorporation of Cyr61 during synthesis of elderly ECM restored its ability to support BM-MSC responsiveness to osteogenic factors such as BMP-2 and IGF-1. We next examined aging bone and compared bone mineral density and Cyr61 content of L4-L5 vertebral bodies in "young" (9-11 m/o) and "elderly" (21-33 m/o) mice. Our analyses showed that low bone mineral density was associated with decreased amounts of Cyr61 in osseous tissue of elderly versus young mice. Our results strongly demonstrate a novel role for ECM-bound Cyr61 in the BM-MSC niche, where it is responsible for retention of BM-MSC proliferation and growth factor responsiveness, while depletion of Cyr61 from the BM niche contributes to an aging-related dysregulation of BM-MSCs. Our results also suggest new potential therapeutic targets for treating age-related bone loss by restoring specific ECM components to the stem cell niche.
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Affiliation(s)
- Milos Marinkovic
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States; Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX 78249, United States; Research Service, South Texas Veterans Health Care System, Audie Murphy VA Medical Center, San Antonio, TX 78229(,) United States
| | - Qiuxia Dai
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States
| | - Aaron O Gonzalez
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States; Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX 78249, United States
| | - Olivia N Tran
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States; Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX 78249, United States
| | - Travis J Block
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States; Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX 78249, United States
| | - Stephen E Harris
- Department of Periodontics, University of Texas Health Science Center at San Antonio, TX 78229, United States
| | - Adam B Salmon
- Department of Molecular Medicine, Barshop Institute for Longevity and Aging Studies at The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States; Geriatric Research, Education and Clinical Center, South Texas Veterans Health Care System, Audie Murphy VA Medical Center, San Antonio, TX 78229, United States
| | - Chih-Ko Yeh
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States; Geriatric Research, Education and Clinical Center, South Texas Veterans Health Care System, Audie Murphy VA Medical Center, San Antonio, TX 78229, United States
| | - David D Dean
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States; Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX 78249, United States
| | - Xiao-Dong Chen
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, United States; Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX 78249, United States; Research Service, South Texas Veterans Health Care System, Audie Murphy VA Medical Center, San Antonio, TX 78229(,) United States.
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Choi JUA, Kijas AW, Lauko J, Rowan AE. The Mechanosensory Role of Osteocytes and Implications for Bone Health and Disease States. Front Cell Dev Biol 2022; 9:770143. [PMID: 35265628 PMCID: PMC8900535 DOI: 10.3389/fcell.2021.770143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/13/2021] [Indexed: 12/14/2022] Open
Abstract
Bone homeostasis is a dynamic equilibrium between bone-forming osteoblasts and bone-resorbing osteoclasts. This process is primarily controlled by the most abundant and mechanosensitive bone cells, osteocytes, that reside individually, within chambers of porous hydroxyapatite bone matrix. Recent studies have unveiled additional functional roles for osteocytes in directly contributing to local matrix regulation as well as systemic roles through endocrine functions by communicating with distant organs such as the kidney. Osteocyte function is governed largely by both biochemical signaling and the mechanical stimuli exerted on bone. Mechanical stimulation is required to maintain bone health whilst aging and reduced level of loading are known to result in bone loss. To date, both in vivo and in vitro approaches have been established to answer important questions such as the effect of mechanical stimuli, the mechanosensors involved, and the mechanosensitive signaling pathways in osteocytes. However, our understanding of osteocyte mechanotransduction has been limited due to the technical challenges of working with these cells since they are individually embedded within the hard hydroxyapatite bone matrix. This review highlights the current knowledge of the osteocyte functional role in maintaining bone health and the key regulatory pathways of these mechanosensitive cells. Finally, we elaborate on the current therapeutic opportunities offered by existing treatments and the potential for targeting osteocyte-directed signaling.
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Affiliation(s)
- Jung Un Ally Choi
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, Australia
| | - Amanda W Kijas
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, Australia
| | - Jan Lauko
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, Australia
| | - Alan E Rowan
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, Australia
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Huang X, Xie M, Xie Y, Mei F, Lu X, Li X, Chen L. The roles of osteocytes in alveolar bone destruction in periodontitis. J Transl Med 2020; 18:479. [PMID: 33308247 PMCID: PMC7733264 DOI: 10.1186/s12967-020-02664-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 12/03/2020] [Indexed: 02/06/2023] Open
Abstract
Periodontitis, a bacterium-induced inflammatory disease that is characterized by alveolar bone loss, is highly prevalent worldwide. Elucidating the underlying mechanisms of alveolar bone loss in periodontitis is crucial for understanding its pathogenesis. Classically, bone cells, such as osteoclasts, osteoblasts and bone marrow stromal cells, are thought to dominate the development of bone destruction in periodontitis. Recently, osteocytes, the cells embedded in the mineral matrix, have gained attention. This review demonstrates the key contributing role of osteocytes in periodontitis, especially in alveolar bone loss. Osteocytes not only initiate physiological bone remodeling but also assist in inflammation-related changes in bone remodeling. The latest evidence suggests that osteocytes are involved in regulating bone anabolism and catabolism in the progression of periodontitis. The altered secretion of receptor activator of NF-κB ligand (RANKL), sclerostin and Dickkopf-related protein 1 (DKK1) by osteocytes affects the balance of bone resorption and formation and promotes bone loss. In addition, the accumulation of prematurely senescent and apoptotic osteocytes observed in alveolar bone may exacerbate local destruction. Based on their communication with the bloodstream, it is noteworthy that osteocytes may participate in the interaction between local periodontitis lesions and systemic diseases. Overall, further investigations of osteocytes may provide vital insights that improve our understanding of the pathophysiology of periodontitis.
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Affiliation(s)
- Xiaofei Huang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Mengru Xie
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Yanling Xie
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Feng Mei
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Xiaofeng Lu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Xiaoshuang Li
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. .,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. .,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
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Fan P, Pu D, Lv X, Hu N, Feng X, Hao Z, Sun Y, He L. Cav 1.3 damages the osteogenic differentiation in osteoporotic rats by negatively regulating Spred 2-mediated autophagy-induced cell senescence. J Cell Mol Med 2020; 24:13863-13875. [PMID: 33124763 PMCID: PMC7754063 DOI: 10.1111/jcmm.15978] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/17/2020] [Accepted: 09/24/2020] [Indexed: 01/15/2023] Open
Abstract
Cav 1.3 can affect the classical osteoclast differentiation pathway through calcium signalling pathway. Here, we performed cell transfection, real-time fluorescence quantitative PCR (qPCR), flow cytometry, SA-β-Gal staining, Alizarin Red S staining, ALP activity test, immunofluorescence, Western blot and cell viability assay to analyse cell viability, cell cycle, osteogenesis differentiation and autophagy activities in vitro. Meanwhile, GST-pull down and CHIP experiments were conducted to explore the influence of Cav 1.3 and Sprouty-related EVH1 domain 2 (Spred 2) on bone marrow-derived mesenchymal stem cells (BMSCs). The results showed that OS lead to the decreased of bone mineral density and differentiation ability of BMSCs in rats. Cav 1.3 was up-regulated in OS rats. Overexpression of Cav 1.3 inhibited the activity of BMSCs, the expression of alkaline phosphatase (ALP), runt-related transcription factor 2 (RUNX2) and osteocalcin (OCN), as well as promoted the cell cycle arrest and senescence. Furthermore, the negative correlation between Cav 1.3 and Spred 2 was found through GST-pull down and CHIP. Overexpression of Spred 2 increased the expressions of microtubule-associated protein 1 light chain 3 (LC3) and Beclin 1 of BMSCs, which ultimately promoted the cell activity of BMSCs and ALP, RUNX2, OCN expression. In conclusion, Cav 1.3 negatively regulates Spred 2-mediated autophagy and cell senescence, and damages the activity and osteogenic differentiation of BMSCs in OS rats.
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Affiliation(s)
- Ping Fan
- Department of Rheumatism and Immunology, the First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Dan Pu
- Department of Rheumatism and Immunology, the First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Xiaohong Lv
- Department of Rheumatism and Immunology, the First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Nan Hu
- Department of Rheumatism and Immunology, the First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Xiuyuan Feng
- Department of Rheumatism and Immunology, the First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Zhiming Hao
- Department of Rheumatism and Immunology, the First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Yining Sun
- Department of Rheumatism and Immunology, the First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Lan He
- Department of Rheumatism and Immunology, the First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
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Yang R, Chen J, Zhang J, Qin R, Wang R, Qiu Y, Mao Z, Goltzman D, Miao D. 1,25-Dihydroxyvitamin D protects against age-related osteoporosis by a novel VDR-Ezh2-p16 signal axis. Aging Cell 2020; 19:e13095. [PMID: 31880094 PMCID: PMC6996957 DOI: 10.1111/acel.13095] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 11/18/2019] [Accepted: 12/07/2019] [Indexed: 12/30/2022] Open
Abstract
To determine whether 1,25-dihydroxyvitamin D (1,25(OH)2 D) can exert an anti-osteoporosis role through anti-aging mechanisms, we analyzed the bone phenotype of mice with 1,25(OH)2 D deficiency due to deletion of the enzyme, 25-hydroxyvitamin D 1α-hydroxylase, while on a rescue diet. 1,25(OH)2 D deficiency accelerated age-related bone loss by activating the p16/p19 senescence signaling pathway, inhibiting osteoblastic bone formation, and stimulating osteoclastic bone resorption, osteocyte senescence, and senescence-associated secretory phenotype (SASP). Supplementation of exogenous 1,25(OH)2 D3 corrected the osteoporotic phenotype caused by 1,25(OH)2 D deficiency or natural aging by inhibiting the p16/p19 pathway. The proliferation, osteogenic differentiation, and ectopic bone formation of bone marrow mesenchymal stem cells derived from mice with genetically induced deficiency of the vitamin D receptor (VDR) were significantly reduced by mechanisms including increased oxidative stress, DNA damage, and cellular senescence. We also demonstrated that p16 deletion largely rescued the osteoporotic phenotype caused by 1,25(OH)2 D3 deficiency, whereas 1,25(OH)2 D3 could up-regulate the enzyme Ezh2 via VDR-mediated transcription thereby enriching H3K27me3 and repressing p16/p19 transcription. Finally, we demonstrated that treatment with 1,25(OH)2 D3 improved the osteogenic defects of human BM-MSCs caused by repeated passages by stimulating their proliferation and inhibiting their senescence via the VDR-Ezh2-p16 axis. The results of this study therefore indicate that 1,25(OH)2 D3 plays a role in preventing age-related osteoporosis by up-regulating Ezh2 via VDR-mediated transcription, increasing H3K27me3 and repressing p16 transcription, thus promoting the proliferation and osteogenesis of BM-MSCs and inhibiting their senescence, while also stimulating osteoblastic bone formation, and inhibiting osteocyte senescence, SASP, and osteoclastic bone resorption.
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Affiliation(s)
- Renlei Yang
- The Research Center for Aging Affiliated Friendship Plastic Surgery Hospital of Nanjing Medical University Nanjing Medical University Nanjing China
- State Key Laboratory of Reproductive Medicine The Research Center for Bone and Stem Cells Department of Anatomy, Histology and Embryology Nanjing Medical University Nanjing China
| | - Jie Chen
- Department of Anesthesiology Central South University Changsha China
| | - Jiao Zhang
- State Key Laboratory of Reproductive Medicine The Research Center for Bone and Stem Cells Department of Anatomy, Histology and Embryology Nanjing Medical University Nanjing China
| | - Ran Qin
- State Key Laboratory of Reproductive Medicine The Research Center for Bone and Stem Cells Department of Anatomy, Histology and Embryology Nanjing Medical University Nanjing China
| | - Rong Wang
- State Key Laboratory of Reproductive Medicine The Research Center for Bone and Stem Cells Department of Anatomy, Histology and Embryology Nanjing Medical University Nanjing China
| | - Yue Qiu
- State Key Laboratory of Reproductive Medicine The Research Center for Bone and Stem Cells Department of Anatomy, Histology and Embryology Nanjing Medical University Nanjing China
| | - Zhiyuan Mao
- State Key Laboratory of Reproductive Medicine The Research Center for Bone and Stem Cells Department of Anatomy, Histology and Embryology Nanjing Medical University Nanjing China
| | - David Goltzman
- Calcium Research Laboratory McGill University Health Centre and Department of Medicine McGill University Montreal Quebec Canada
| | - Dengshun Miao
- The Research Center for Aging Affiliated Friendship Plastic Surgery Hospital of Nanjing Medical University Nanjing Medical University Nanjing China
- State Key Laboratory of Reproductive Medicine The Research Center for Bone and Stem Cells Department of Anatomy, Histology and Embryology Nanjing Medical University Nanjing China
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