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Fan X, Zhang R, Xu G, Fan P, Luo W, Cai C, Ge RL. Role of ubiquitination in the occurrence and development of osteoporosis (Review). Int J Mol Med 2024; 54:68. [PMID: 38940355 PMCID: PMC11232666 DOI: 10.3892/ijmm.2024.5392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 06/14/2024] [Indexed: 06/29/2024] Open
Abstract
The ubiquitin (Ub)‑proteasome system (UPS) plays a pivotal role in maintaining protein homeostasis and function to modulate various cellular processes including skeletal cell differentiation and bone homeostasis. The Ub ligase E3 promotes the transfer of Ub to the target protein, especially transcription factors, to regulate the proliferation, differentiation and survival of bone cells, as well as bone formation. In turn, the deubiquitinating enzyme removes Ub from modified substrate proteins to orchestrate bone remodeling. As a result of abnormal regulation of ubiquitination, bone cell differentiation exhibits disorder and then bone homeostasis is affected, consequently leading to osteoporosis. The present review discussed the role and mechanism of UPS in bone remodeling. However, the specific mechanism of UPS in the process of bone remodeling is still not fully understood and further research is required. The study of the mechanism of action of UPS can provide new ideas and methods for the prevention and treatment of osteoporosis. In addition, the most commonly used osteoporosis drugs that target ubiquitination processes in the clinic are discussed in the current review.
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Affiliation(s)
- Xiaoxia Fan
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of The Ministry of High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of Applied Fundamentals of High Altitude Medicine, (Qinghai-Utah Joint Key Laboratory of Plateau Medicine), Qinghai University, Xining, Qinghai 810000, P.R. China
- Laboratory for High Altitude Medicine of Qinghai Province, Qinghai University, Xining, Qinghai 810000, P.R. China
- Qinghai Provincial People's Hospital, Department of Endocrinology, Xining, Qinghai 810000, P.R. China
| | - Rong Zhang
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of The Ministry of High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of Applied Fundamentals of High Altitude Medicine, (Qinghai-Utah Joint Key Laboratory of Plateau Medicine), Qinghai University, Xining, Qinghai 810000, P.R. China
- Laboratory for High Altitude Medicine of Qinghai Province, Qinghai University, Xining, Qinghai 810000, P.R. China
| | - Guocai Xu
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of The Ministry of High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of Applied Fundamentals of High Altitude Medicine, (Qinghai-Utah Joint Key Laboratory of Plateau Medicine), Qinghai University, Xining, Qinghai 810000, P.R. China
- Laboratory for High Altitude Medicine of Qinghai Province, Qinghai University, Xining, Qinghai 810000, P.R. China
| | - Peiyun Fan
- Qinghai Provincial People's Hospital, Department of Endocrinology, Xining, Qinghai 810000, P.R. China
| | - Wei Luo
- Qinghai Provincial People's Hospital, Department of Endocrinology, Xining, Qinghai 810000, P.R. China
| | - Chunmei Cai
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of The Ministry of High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of Applied Fundamentals of High Altitude Medicine, (Qinghai-Utah Joint Key Laboratory of Plateau Medicine), Qinghai University, Xining, Qinghai 810000, P.R. China
- Laboratory for High Altitude Medicine of Qinghai Province, Qinghai University, Xining, Qinghai 810000, P.R. China
| | - Ri-Li Ge
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of The Ministry of High Altitude Medicine, Qinghai University, Xining, Qinghai 810000, P.R. China
- Key Laboratory of Applied Fundamentals of High Altitude Medicine, (Qinghai-Utah Joint Key Laboratory of Plateau Medicine), Qinghai University, Xining, Qinghai 810000, P.R. China
- Laboratory for High Altitude Medicine of Qinghai Province, Qinghai University, Xining, Qinghai 810000, P.R. China
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Zhou CJ, Zhang C, Lu LF, Li S. Fish ubiquitin-specific protease 8 (USP8) inhibits IFN production through autophagy-lysosomal dependent degradation of IRF7. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 156:105181. [PMID: 38636698 DOI: 10.1016/j.dci.2024.105181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/14/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
Interferon regulatory factor 7 (IRF7) is considered the master regulator of virus-induced interferon (IFN) production. However, to avoid an autoimmune response, the expression of IRF7 must be tightly controlled. In this study, we report that zebrafish ubiquitin-specific protease 8 (USP8) promotes IRF7 degradation through an autophagy-lysosome-dependent pathway to inhibit IFN production. First, zebrafish usp8 is induced upon spring viremia of carp virus (SVCV) infection and polyinosinic/polycytidylic acid (poly I:C) stimulation. Second, overexpression of USP8 suppresses SVCV or poly I:C-mediated IFN expression. Mechanistically, USP8 interacts with IRF7 and promotes its degradation via an autophagy-lysosome-dependent pathway. Finally, USP8 significantly suppresses cellular antiviral responses and enhances SVCV proliferation. In summary, our discoveries offer a perspective on the role of zebrafish USP8 and provide additional understanding of the regulation of IRF7 in host antiviral immune response.
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Affiliation(s)
- Chu-Jing Zhou
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China; Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Can Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China
| | - Long-Feng Lu
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China; Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Shun Li
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China; Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China.
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Liu X, Wang B, Chang M, Zhang X, Zou H, Zhang Z, Han G. USP12 regulates ER stress-associated osteogenesis in human periodontal ligament cells under tension stress. Cell Signal 2024; 114:111015. [PMID: 38113977 DOI: 10.1016/j.cellsig.2023.111015] [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: 09/18/2023] [Revised: 11/29/2023] [Accepted: 12/13/2023] [Indexed: 12/21/2023]
Abstract
The bone formation (osteogenesis) of human periodontal ligament cells (hPDLCs) under tension stress is essential for alveolar bone remodeling during orthodontic tooth movement (OTM). Deubiquitinating enzymes (DUBs) remove ubiquitin from target proteins, affecting their function and mediating cell survival and differentiation. However, whether and how DUBs regulate hPDLC function under tension force is poorly understood. In this study, we first investigated the expression of DUBs in hPDLCs under cyclic tension stimulation (CTS). Up-regulation of USP12 was observed in hPDLCs and at the tension side of molar teeth in OTM C57BL6 mice models. Knockdown (KD) of USP12 led to enhanced osteogenesis of hPDLCs under CTS. RNA-seq analysis suggested that the unfolded protein response (UPR) was the prevailing biological process in hPDLCs with USP12 KD, indicating that USP12 depletion triggered endoplasmic reticulum (ER) stress. The three major UPR-related signaling branches, namely PERK/eIF2α/ATF4, IRE1α/XBP1s, and ATF6 axis, were activated in hPDLCs with USP12 KD. By utilizing specific inhibitors, we proved that the PERK/eIF2α/ATF4 axis predominantly mediated the enhanced osteogenesis in hPDLCs with USP12 KD under CTS. In summary, our study demonstrates that USP12 serves as a key regulator for CTS-induced osteogenesis in hPDLCs, suggesting that USP12 upregulation serves as an adaptive mechanism for hPDLCs to alleviate ER stress during OTM.
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Affiliation(s)
- Xiaoyu Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan, China
| | - Beike Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan, China; Orthodontic Department Division II, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Maolin Chang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan, China; Orthodontic Department Division II, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xiaocen Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan, China
| | - Hao Zou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan, China
| | - Zhen Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan, China; Orthodontic Department Division II, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Guangli Han
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan, China; Orthodontic Department Division II, School & Hospital of Stomatology, Wuhan University, Wuhan, China.
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Shen J, Lin X, Dai F, Chen G, Lin H, Fang B, Liu H. Ubiquitin-specific peptidases: Players in bone metabolism. Cell Prolif 2023:e13444. [PMID: 36883930 PMCID: PMC10392067 DOI: 10.1111/cpr.13444] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/22/2023] [Accepted: 02/28/2023] [Indexed: 03/09/2023] Open
Abstract
Osteoporosis is an ageing-related disease, that has become a major public health problem and its pathogenesis has not yet been fully elucidated. Substantial evidence suggests a strong link between overall age-related disease progression and epigenetic modifications throughout the life cycle. As an important epigenetic modification, ubiquitination is extensively involved in various physiological processes, and its role in bone metabolism has attracted increasing attention. Ubiquitination can be reversed by deubiquitinases, which counteract protein ubiquitination degradation. As the largest and most structurally diverse cysteinase family of deubiquitinating enzymes, ubiquitin-specific proteases (USPs), comprising the largest and most structurally diverse cysteine kinase family of deubiquitinating enzymes, have been found to be important players in maintaining the balance between bone formation and resorption. The aim of this review is to explore recent findings highlighting the regulatory functions of USPs in bone metabolism and provide insight into the molecular mechanisms governing their actions during bone loss. An in-deep understanding of USPs-mediated regulation of bone formation and bone resorption will provide a scientific rationale for the discovery and development of novel USP-targeted therapeutic strategies for osteoporosis.
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Affiliation(s)
- Jianlin Shen
- Department of Orthopaedics, Affiliated Hospital of Putian University, Putian, China
| | - Xiaoning Lin
- Department of Orthopaedics, Affiliated Hospital of Putian University, Putian, China
| | - Feifei Dai
- School of Medicine, Putian Universtiy, Putian, China
| | - Guoli Chen
- Department of Orthopaedics, Affiliated Hospital of Putian University, Putian, China
| | - Haibin Lin
- Department of Orthopaedics, Affiliated Hospital of Putian University, Putian, China
| | - Bangjiang Fang
- Department of Emergency, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Emergency and Critical Care Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Huan Liu
- Department of Orthopaedics, Affiliated Hospital of Putian University, Putian, China
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Pan Y, Tang Y, Gu H, Ge W. Ubiquitin modification in osteogenic differentiation and bone formation: From mechanisms to clinical significance. Front Cell Dev Biol 2022; 10:1033223. [PMID: 36340031 PMCID: PMC9634082 DOI: 10.3389/fcell.2022.1033223] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/10/2022] [Indexed: 01/03/2024] Open
Abstract
The ubiquitin-proteasome system is an important pathway for mediating posttranslational modification and protein homeostasis and exerts a wide range of functions in diverse biological processes, including stem cell differentiation, DNA repair, and cell cycle regulation. Many studies have shown that ubiquitination modification plays a critical role in regulating the osteogenic differentiation of stem cells and bone formation through various mechanisms. This review summarizes current progress on the effects and mechanisms of ubiquitin modification on transcription factors and signaling pathways involved in osteogenic differentiation. Moreover, the review highlights the latest advances in the clinical application of drugs in bone tissue engineering. A thorough understanding of ubiquitin modifications may provide promising therapeutic targets for stem cell-based bone tissue engineering.
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Affiliation(s)
- Yuan Pan
- Department of General Dentistry II, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
| | - Yiman Tang
- Fourth Clinical Division, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
| | - Hang Gu
- Department of General Dentistry II, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
| | - Wenshu Ge
- Department of General Dentistry II, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
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