1
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Zhang HR, Wang YH, Xiao ZP, Yang G, Xu YR, Huang ZT, Wang WZ, He F. E3 ubiquitin ligases: key regulators of osteogenesis and potential therapeutic targets for bone disorders. Front Cell Dev Biol 2024; 12:1447093. [PMID: 39211390 PMCID: PMC11358089 DOI: 10.3389/fcell.2024.1447093] [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: 06/11/2024] [Accepted: 08/05/2024] [Indexed: 09/04/2024] Open
Abstract
Ubiquitination is a crucial post-translational modification of proteins that mediates the degradation or functional regulation of specific proteins. This process participates in various biological processes such as cell growth, development, and signal transduction. E3 ubiquitin ligases play both positive and negative regulatory roles in osteogenesis and differentiation by ubiquitination-mediated degradation or stabilization of transcription factors, signaling molecules, and cytoskeletal proteins. These activities affect the proliferation, differentiation, survival, and bone formation of osteoblasts (OBs). In recent years, advances in genomics, transcriptomics, and proteomics have led to a deeper understanding of the classification, function, and mechanisms of action of E3 ubiquitin ligases. This understanding provides new insights and approaches for revealing the molecular regulatory mechanisms of bone formation and identifying therapeutic targets for bone metabolic diseases. This review discusses the research progress and significance of the positive and negative regulatory roles and mechanisms of E3 ubiquitin ligases in the process of osteogenic differentiation. Additionally, the review highlights the role of E3 ubiquitin ligases in bone-related diseases. A thorough understanding of the role and mechanisms of E3 ubiquitin ligases in osteogenic differentiation could provide promising therapeutic targets for bone tissue engineering based on stem cells.
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Affiliation(s)
- Heng-Rui Zhang
- School of Medicine, Kunming University of Science and Technology, Kunming, Yunnan, China
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
| | - Yang-Hao Wang
- Department of Pathology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Zhen-Ping Xiao
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
- Department of Pain and Rehabilitation, The Second Affiliated Hospital of University of South China, Hengyang, Hunan, China
| | - Guang Yang
- Department of Trauma Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yun-Rong Xu
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
| | - Zai-Tian Huang
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
| | - Wei-Zhou Wang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Fei He
- Department of Orthopedic, Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan, China
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2
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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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3
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Peng Z, Fang W, Wu B, He M, Li S, Wei J, Hao Y, Jin L, Liu M, Zhang X, Wei Y, Ge Y, Wei Y, Qian H, Zhang Y, Jiang J, Chang Z, Rao Y, Zhang X, Cui CP, Zhang L. Targeting Smurf1 to block PDK1-Akt signaling in KRAS-mutated colorectal cancer. Nat Chem Biol 2024:10.1038/s41589-024-01683-5. [PMID: 39039255 DOI: 10.1038/s41589-024-01683-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 06/23/2024] [Indexed: 07/24/2024]
Abstract
The phosphoinositide 3-kinase (PI3K)-Akt axis is one of the most frequently activated pathways and is demonstrated as a therapeutic target in Kirsten rat sarcoma viral oncogene homolog (KRAS)-mutated colorectal cancer (CRC). Targeting the PI3K-Akt pathway has been a challenging undertaking through the decades. Here we unveiled an essential role of E3 ligase SMAD ubiquitylation regulatory factor 1 (Smurf1)-mediated phosphoinositide-dependent protein kinase 1 (PDK1) neddylation in PI3K-Akt signaling and tumorigenesis. Upon growth factor stimulation, Smurf1 immediately triggers PDK1 neddylation and the poly-neural precursor cell expressed developmentally downregulated protein 8 (poly-Nedd8) chains recruit methyltransferase SET domain bifurcated histone lysine methyltransferase 1 (SETDB1). The cytoplasmic complex of PDK1 assembled with Smurf1 and SETDB1 (cCOMPASS) consisting of PDK1, Smurf1 and SETDB1 directs Akt membrane attachment and T308 phosphorylation. Smurf1 deficiency dramatically reduces CRC tumorigenesis in a genetic mouse model. Furthermore, we developed a highly selective Smurf1 degrader, Smurf1-antagonizing repressor of tumor 1, which exhibits efficient PDK1-Akt blockade and potent tumor suppression alone or combined with PDK1 inhibitor in KRAS-mutated CRC. The findings presented here unveil previously unrecognized roles of PDK1 neddylation and offer a potential strategy for targeting the PI3K-Akt pathway and KRAS mutant cancer therapy.
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Affiliation(s)
- Zhiqiang Peng
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
- Shanghai Fengxian Central Hospital, The Third School of Clinical Medicine, Southern Medical University, Shanghai, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Wei Fang
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
- Shanghai Fengxian Central Hospital, The Third School of Clinical Medicine, Southern Medical University, Shanghai, China
| | - Bo Wu
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Ming He
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, China
| | - Shaohua Li
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
- Shanghai Fengxian Central Hospital, The Third School of Clinical Medicine, Southern Medical University, Shanghai, China
| | - Jun Wei
- Shanghai Fengxian Central Hospital, The Third School of Clinical Medicine, Southern Medical University, Shanghai, China
| | - Yang Hao
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Lujia Jin
- Department of Gastrointestinal Surgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Mingqiu Liu
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Xin Zhang
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Yange Wei
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Yingwei Ge
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Yinghua Wei
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Haili Qian
- State Key Laboratory of Molecular Oncology, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yangjun Zhang
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Junyi Jiang
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Zhijie Chang
- School of Medicine, Tsinghua University, Beijing, China
| | - Yu Rao
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, China.
| | - Xueli Zhang
- Shanghai Fengxian Central Hospital, The Third School of Clinical Medicine, Southern Medical University, Shanghai, China.
| | - Chun-Ping Cui
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.
| | - Lingqiang Zhang
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.
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Riege D, Herschel S, Fenkl T, Schade D. Small-Molecule Probes as Pharmacological Tools for the Bone Morphogenetic Protein Signaling Pathway. ACS Pharmacol Transl Sci 2023; 6:1574-1599. [PMID: 37974621 PMCID: PMC10644459 DOI: 10.1021/acsptsci.3c00170] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/21/2023] [Accepted: 09/28/2023] [Indexed: 11/19/2023]
Abstract
The bone morphogenetic protein (BMP) pathway is highly conserved and plays central roles in health and disease. The quality and quantity of its signaling outputs are regulated at multiple levels, offering pharmacological options for targeted modulation. Both target-centric and phenotypic drug discovery (PDD) approaches were applied to identify small-molecule BMP inhibitors and stimulators. In this Review, we accumulated and systematically classified the different reported chemotypes based on their targets as well as modes-of-action, and herein we illustrate the discovery history of selected candidates. A comprehensive summary of available biochemical, cellular, and in vivo activities is provided for the most relevant BMP modulators, along with recommendations on their preferred use as chemical probes to study BMP-related (patho)physiological processes. There are a number of high-quality probes used as BMP inhibitors that potently and selectively interrogate the kinase activities of distinct type I (16 chemotypes available) and type II receptors (3 chemotypes available). In contrast, only a few high-quality BMP stimulator modalities have been introduced to the field due to a lack of profound target knowledge. FK506-derived macrolides such as calcineurin-sparing FKBP12 inhibitors currently represent the best-characterized chemical tools for direct activation of BMP-SMAD signaling at the receptor level. However, several PDD campaigns succeeded in expanding the druggable space of BMP stimulators. Albeit the majority of them do not entirely fulfill the strict chemical probe criteria, many chemotypes exhibit unique and unrecognized mechanisms as pathway potentiators or synergizers, serving as valuable pharmacological tools for BMP perturbation.
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Affiliation(s)
- Daniel Riege
- Department
of Pharmaceutical & Medicinal Chemistry, Christian-Albrechts-University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Sven Herschel
- Department
of Pharmaceutical & Medicinal Chemistry, Christian-Albrechts-University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Teresa Fenkl
- Department
of Pharmaceutical & Medicinal Chemistry, Christian-Albrechts-University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Dennis Schade
- Department
of Pharmaceutical & Medicinal Chemistry, Christian-Albrechts-University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
- Partner
Site Kiel, DZHK, German Center for Cardiovascular
Research, 24105 Kiel, Germany
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5
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Dong Y, Chen Y, Ma G, Cao H. The role of E3 ubiquitin ligases in bone homeostasis and related diseases. Acta Pharm Sin B 2023; 13:3963-3987. [PMID: 37799379 PMCID: PMC10547920 DOI: 10.1016/j.apsb.2023.06.016] [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: 02/09/2022] [Revised: 05/16/2023] [Accepted: 05/18/2023] [Indexed: 10/07/2023] Open
Abstract
The ubiquitin-proteasome system (UPS) dedicates to degrade intracellular proteins to modulate demic homeostasis and functions of organisms. These enzymatic cascades mark and modifies target proteins diversly through covalently binding ubiquitin molecules. In the UPS, E3 ubiquitin ligases are the crucial constituents by the advantage of recognizing and presenting proteins to proteasomes for proteolysis. As the major regulators of protein homeostasis, E3 ligases are indispensable to proper cell manners in diverse systems, and they are well described in physiological bone growth and bone metabolism. Pathologically, classic bone-related diseases such as metabolic bone diseases, arthritis, bone neoplasms and bone metastasis of the tumor, etc., were also depicted in a UPS-dependent manner. Therefore, skeletal system is versatilely regulated by UPS and it is worthy to summarize the underlying mechanism. Furthermore, based on the current status of treatment, normal or pathological osteogenesis and tumorigenesis elaborated in this review highlight the clinical significance of UPS research. As a strategy possibly remedies the limitations of UPS treatment, emerging PROTAC was described comprehensively to illustrate its potential in clinical application. Altogether, the purpose of this review aims to provide more evidence for exploiting novel therapeutic strategies based on UPS for bone associated diseases.
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Affiliation(s)
| | | | - Guixing Ma
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Key University Laboratory of Metabolism and Health of Guangdong, Shenzhen 518055, China
| | - Huiling Cao
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Key University Laboratory of Metabolism and Health of Guangdong, Shenzhen 518055, China
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Groppe JC. Induced degradation of protein kinases by bifunctional small molecules: a next-generation strategy. Expert Opin Drug Discov 2019; 14:1237-1253. [DOI: 10.1080/17460441.2019.1660641] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jay C. Groppe
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
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7
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Tian M, Zeng T, Liu M, Han S, Lin H, Lin Q, Li L, Jiang T, Li G, Lin H, Zhang T, Kang Q, Deng X, Wang HR. A cell-based high-throughput screening method based on a ubiquitin-reference technique for identifying modulators of E3 ligases. J Biol Chem 2018; 294:2880-2891. [PMID: 30587574 DOI: 10.1074/jbc.ra118.003822] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 12/11/2018] [Indexed: 12/31/2022] Open
Abstract
Accumulating evidence indicates that a wide range of E3 ubiquitin ligases are involved in the development of many human diseases. Searching for small-molecule modulators of these E3 ubiquitin ligases is emerging as a promising drug discovery strategy. Here, we report the development of a cell-based high-throughput screening method to identify modulators of E3 ubiquitin ligases by integrating the ubiquitin-reference technique (URT), based on a fusion protein of ubiquitin located between a protein of interest and a reference protein moiety, with a Dual-Luciferase system. Using this method, we screened for small-molecule modulators of SMAD ubiquitin regulatory factor 1 (SMURF1), which belongs to the NEDD4 family of E3 ubiquitin ligases and is an attractive therapeutic target because of its roles in tumorigenesis. Using RAS homolog family member B (RHOB) as a SMURF1 substrate in this screen, we identified a potent SMURF1 inhibitor and confirmed that it also blocks SMURF1-dependent degradation of SMAD family member 1 (SMAD1) and RHOA. An in vitro auto-ubiquitination assay indicated that this compound inhibits both SMURF1 and SMURF2 activities, indicating that it may be an antagonist of the catalytic activity of the HECT domain in SMURF1/2. Moreover, cell functional assays revealed that this compound effectively inhibits protrusive activity in HEK293T cells and blocks transforming growth factor β (TGFβ)-induced epithelial-mesenchymal transition (EMT) in MDCK cells, similar to the effects on these processes caused by SMURF1 loss. In summary, the screening approach presented here may have great practical potential for identifying modulators of E3 ubiquitin ligases.
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Affiliation(s)
- Maoyuan Tian
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Taoling Zeng
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Mingdong Liu
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Shang Han
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Huayue Lin
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Qi Lin
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Li Li
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Tingting Jiang
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Gao Li
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Hong Lin
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Ting Zhang
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Qiaofeng Kang
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Xianming Deng
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Hong-Rui Wang
- From the State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Fujian 361102, China
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8
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Chen D, Gehringer M, Lorenz S. Developing Small-Molecule Inhibitors of HECT-Type Ubiquitin Ligases for Therapeutic Applications: Challenges and Opportunities. Chembiochem 2018; 19:2123-2135. [PMID: 30088849 PMCID: PMC6471174 DOI: 10.1002/cbic.201800321] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Indexed: 12/11/2022]
Abstract
The ubiquitin system regulates countless physiological and disease-associated processes and has emerged as an attractive entryway for therapeutic efforts. With over 600 members in the human proteome, ubiquitin ligases are the most diverse class of ubiquitylation enzymes and pivotal in encoding specificity in ubiquitin signaling. Although considerable progress has been made in the identification of small molecules targeting RING ligases, relatively little is known about the "druggability" of HECT (homologous to E6AP C terminus) ligases, many of which are critically implicated in human pathologies. A major obstacle to optimizing the few available ligands is our incomplete understanding of their inhibitory mechanisms and the structural basis of catalysis in HECT ligases. Here, we survey recent approaches to manipulate the activities of HECT ligases with small molecules to showcase the particular challenges and opportunities these enzymes hold as therapeutic targets.
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Affiliation(s)
- Dan Chen
- Rudolf Virchow Center for Experimental BiomedicineUniversity of WürzburgJosef-Schneider-Strasse 2, Haus D1597080WürzburgGermany
| | - Matthias Gehringer
- Institute of Pharmaceutical SciencesDepartment of Pharmaceutical/Medicinal ChemistryUniversity of TübingenAuf der Morgenstelle 872076TübingenGermany
| | - Sonja Lorenz
- Rudolf Virchow Center for Experimental BiomedicineUniversity of WürzburgJosef-Schneider-Strasse 2, Haus D1597080WürzburgGermany
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9
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Li H, Cui Y, Wei J, Liu C, Chen Y, Cui CP, Li L, Zhang X, Zhang L. VCP/p97 increases BMP signaling by accelerating ubiquitin ligase Smurf1 degradation. FASEB J 2018; 33:2928-2943. [PMID: 30335548 DOI: 10.1096/fj.201801173r] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The bone morphogenetic protein (BMP)-Smad signaling pathway plays a crucial role in the control of bone homeostasis by regulating osteoblast activity. It is known that the ubiquitin ligase Smad ubiquitination regulatory factor (Smurf)1 is a master negative regulator of BMP signaling, but how its stability and activity are regulated remains poorly understood. Our study showed that valosin-containing protein/p97, the mutations of which lead to rare forms of Paget's disease of bone (PDB)-like syndrome-such as inclusion body myopathy (IBM) associated with Paget's disease of bone and frontotemporal dementia (IBM-PFD)-together with its adaptor nuclear protein localization (NPL)4, specifically interact with Smurf1 and deliver the ubiquitinated Smurf1 for degradation. Depletion of either p97 or NPL4 resulted in the elevation of Smurf1 protein level and decreased BMP signaling accordingly. Mechanically, a typical proline, glutamic acid, serine, and threonine motif specifically existing in Smurf1 is necessary for its recognition and degradation by p97, and this process is dependent on p97 ATPase activity. More importantly, compared with p97 WT, PDB-associated mutation of p97 (mainly A232E) harboring the higher ATPase activity of p97 further promoted Smurf1 degradation, thus increasing BMP signaling activity. Our findings first establish a link between p97 and Smurf1, providing an in-depth understanding of how Smurf1 is regulated, as well as the mechanism of p97-related bone diseases.-Li, H., Cui, Y., Wei, J., Liu, C., Chen, Y., Cui, C.-P., Li, L., Zhang, X., Zhang, L. VCP/p97 increases BMP signaling by accelerating ubiquitin ligase Smurf1 degradation.
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Affiliation(s)
- Haiwen Li
- State Key Laboratory of Proteomics, National Center of Protein Sciences, Beijing Institute of Lifeomics, Beijing, China.,Department of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Yu Cui
- State Key Laboratory of Proteomics, National Center of Protein Sciences, Beijing Institute of Lifeomics, Beijing, China
| | - Jun Wei
- Department of General Surgery, Shanghai Fengxian Central Hospital Graduate Training Base, Fengxian Hospital, Southern Medical University, Shanghai, China
| | - Chao Liu
- State Key Laboratory of Proteomics, National Center of Protein Sciences, Beijing Institute of Lifeomics, Beijing, China
| | - Yuhan Chen
- State Key Laboratory of Proteomics, National Center of Protein Sciences, Beijing Institute of Lifeomics, Beijing, China
| | - Chun-Ping Cui
- State Key Laboratory of Proteomics, National Center of Protein Sciences, Beijing Institute of Lifeomics, Beijing, China
| | - Lei Li
- State Key Laboratory of Proteomics, National Center of Protein Sciences, Beijing Institute of Lifeomics, Beijing, China
| | - Xueli Zhang
- Department of General Surgery, Shanghai Fengxian Central Hospital Graduate Training Base, Fengxian Hospital, Southern Medical University, Shanghai, China
| | - Lingqiang Zhang
- State Key Laboratory of Proteomics, National Center of Protein Sciences, Beijing Institute of Lifeomics, Beijing, China
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10
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Hu F, Zhu Q, Sun B, Cui C, Li C, Zhang L. Smad ubiquitylation regulatory factor 1 promotes LIM‐homeobox gene 9 degradation and represses testosterone production in Leydig cells. FASEB J 2018; 32:4627-4640. [DOI: 10.1096/fj.201701480r] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Fan Hu
- Department of Geriatric EndocrinologyChinese People's Liberation Army General HospitalNational Clinical Research Center for Geriatric DiseasesBeijingChina
- State Key Laboratory of ProteomicsBeijing Proteome Research CenterNational Center of Protein SciencesBeijing Institute of LifeomicsBeijingChina
| | - Qiong Zhu
- State Key Laboratory of ProteomicsBeijing Proteome Research CenterNational Center of Protein SciencesBeijing Institute of LifeomicsBeijingChina
| | - Banruo Sun
- Department of Geriatric EndocrinologyChinese People's Liberation Army General HospitalNational Clinical Research Center for Geriatric DiseasesBeijingChina
| | - Chunping Cui
- State Key Laboratory of ProteomicsBeijing Proteome Research CenterNational Center of Protein SciencesBeijing Institute of LifeomicsBeijingChina
| | - Chunlin Li
- Department of Geriatric EndocrinologyChinese People's Liberation Army General HospitalNational Clinical Research Center for Geriatric DiseasesBeijingChina
| | - Lingqiang Zhang
- State Key Laboratory of ProteomicsBeijing Proteome Research CenterNational Center of Protein SciencesBeijing Institute of LifeomicsBeijingChina
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11
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Shao L, Liu X, Zhu S, Liu C, Gao Y, Xu X. The Role of Smurf1 in Neuronal Necroptosis after Lipopolysaccharide-Induced Neuroinflammation. Cell Mol Neurobiol 2017; 38:809-816. [PMID: 28940129 DOI: 10.1007/s10571-017-0553-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 09/18/2017] [Indexed: 12/14/2022]
Abstract
The role of inflammation in neurological disorders such as Alzheimer's disease and Parkinson's disease is gradually recognized and leads to an urgent challenge. Smad ubiquitination regulatory factor 1 (Smurf1), one member of the HECT family, is up-regulated by proinflammatory cytokines and associated with apoptosis in acute spinal cord injury. However, the function of Smurf1 through promoting neuronal necroptosis is still limited in the central nervous system (CNS). Hence, we developed a neuroinflammatory model in adult rats following lipopolysaccharide (LPS) lateral ventral injection to elaborate whether Smurf1 is involved in necroptosis in CNS injury. The up-regulation of Smurf1 detected in the rat brain cortex was similar to the necroptotic marker RIP1 expression in a time-dependent manner after LPS-induced neuroinflammation. Meanwhile, Smurf1 knockdown with siRNA inhibited neuronal necroptosis following LPS-stimulated rat pheochromocytomal PC12 cells. Thus, it was indicated that LPS-induced necroptosis could be promoted by Smurf1. In short, these studies suggest that Smurf1 might promote neuronal necroptosis after LPS-induced neuroinflammation, which might act as a novel and potential molecular target for the treatment of neuroinflammation associated diseases.
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Affiliation(s)
- Lifei Shao
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China
| | - Xiaojuan Liu
- Department of Pathogen Biology, Medical College, Nantong University, Nantong, Jiangsu, 226001, China
| | - Shunxing Zhu
- Experimental Animal Center, Nantong University, Nantong, Jiangsu, 226001, China
| | - Chun Liu
- Experimental Animal Center, Nantong University, Nantong, Jiangsu, 226001, China
| | - Yilu Gao
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China.
| | - Xide Xu
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China
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12
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Ma P, Ren B, Yang X, Sun B, Liu X, Kong Q, Li C, Mao B. ZC4H2 stabilizes Smads to enhance BMP signalling, which is involved in neural development in Xenopus. Open Biol 2017; 7:rsob.170122. [PMID: 28814648 PMCID: PMC5577449 DOI: 10.1098/rsob.170122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 07/17/2017] [Indexed: 01/16/2023] Open
Abstract
Bone morphogenetic proteins (BMPs) play vital roles in regulating stem cell maintenance, differentiation and embryonic development. Intracellularly, BMP signalling is mediated by Smad proteins, which are regulated post-transcriptionally through reversible phosphorylation and ubiquitination. ZC4H2 is a small nuclear protein associated with intellectual disability and neural development in humans. Here, we report that ZC4H2 is highly expressed in the developing neural system and is involved in neural patterning and BMP signalling in Xenopus Knockdown of ZC4H2 led to expansion of the expression of the pan neural plate marker Sox2 in Xenopus embryos. In mammalian cells, ZC4H2 promotes BMP signalling and is involved in BMP regulated myogenic and osteogenic differentiation of mouse myoblast cells. Mechanistically, ZC4H2 binds and stabilizes Smad1 and Smad5 proteins through reducing their association with the Smurf ubiquitin ligases and thus their ubiquitination. We also found that a group of ZC4H2 mutations, which have been isolated in patients with intellectual disorders, showed weaker Smad-stabilizing activity, suggesting that the ZC4H2-Smad interaction might contribute to proper neural development in humans.
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Affiliation(s)
- Pengcheng Ma
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, People's Republic of China
| | - Biyu Ren
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, People's Republic of China.,Institute of Health Sciences, Anhui University, Hefei 230601, People's Republic of China
| | - Xiangcai Yang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, People's Republic of China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650203, People's Republic of China
| | - Bin Sun
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650203, People's Republic of China.,Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming 650223, People's Republic of China
| | - Xiaoliang Liu
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, People's Republic of China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650203, People's Republic of China
| | - Qinghua Kong
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, People's Republic of China
| | - Chaocui Li
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, People's Republic of China
| | - Bingyu Mao
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, People's Republic of China
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