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Weinberg J, Whitcomb E, Bohm A, Chekkilla UK, Taylor A. The E3 ligase SMURF1 stabilizes p27 via UbcH7 catalyzed K29-linked ubiquitin chains to promote cell migration SMURF1-UbcH7 K29 ubiquitination of p27 and cell migration. J Biol Chem 2024; 300:105693. [PMID: 38301893 PMCID: PMC10897894 DOI: 10.1016/j.jbc.2024.105693] [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: 09/08/2023] [Revised: 12/28/2023] [Accepted: 01/10/2024] [Indexed: 02/03/2024] Open
Abstract
Ubiquitination is a key regulator of protein stability and function. The multifunctional protein p27 is known to be degraded by the proteasome following K48-linked ubiquitination. However, we recently reported that when the ubiquitin-conjugating enzyme UbcH7 (UBE2L3) is overexpressed, p27 is stabilized, and cell cycle is arrested in multiple diverse cell types including eye lens, retina, HEK-293, and HELA cells. However, the ubiquitin ligase associated with this stabilization of p27 remained a mystery. Starting with an in vitro ubiquitination screen, we identified RSP5 as the yeast E3 ligase partner of UbcH7 in the ubiquitination of p27. Screening of the homologous human NEDD4 family of E3 ligases revealed that SMURF1 but not its close homolog SMURF2, stabilizes p27 in cells. We found that SMURF1 ubiquitinates p27 with K29O but not K29R or K63O ubiquitin in vitro, demonstrating a strong preference for K29 chain formation. Consistent with SMURF1/UbcH7 stabilization of p27, we also found that SMURF1, UbcH7, and p27 promote cell migration, whereas knockdown of SMURF1 or UbcH7 reduces cell migration. We further demonstrated the colocalization of SMURF1/p27 and UbcH7/p27 at the leading edge of migrating cells. In sum, these results indicate that SMURF1 and UbcH7 work together to produce K29-linked ubiquitin chains on p27, resulting in the stabilization of p27 and promoting its cell-cycle independent function of regulating cell migration.
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Affiliation(s)
- Jasper Weinberg
- Laboratory for Nutrition and Vision Research Human Nutrition Research Center on Aging Tufts University
| | - Elizabeth Whitcomb
- Laboratory for Nutrition and Vision Research Human Nutrition Research Center on Aging Tufts University
| | - Andrew Bohm
- Laboratory for Nutrition and Vision Research Human Nutrition Research Center on Aging Tufts University
| | - Uday Kumar Chekkilla
- Laboratory for Nutrition and Vision Research Human Nutrition Research Center on Aging Tufts University
| | - Allen Taylor
- Laboratory for Nutrition and Vision Research Human Nutrition Research Center on Aging Tufts University.
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2
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Weinberg J, Gaur M, Swaroop A, Taylor A. Proteostasis in aging-associated ocular disease. Mol Aspects Med 2022; 88:101157. [PMID: 36459837 PMCID: PMC9742340 DOI: 10.1016/j.mam.2022.101157] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 11/15/2022] [Indexed: 11/30/2022]
Abstract
Vision impairment has devastating consequences for the quality of human life. The cells and tissues associated with the visual process must function throughout one's life span and maintain homeostasis despite exposure to a variety of insults. Maintenance of the proteome is termed proteostasis, and is vital for normal cellular functions, especially at an advanced age. Here we describe basic aspects of proteostasis, from protein synthesis and folding to degradation, and discuss the current status of the field with a particular focus on major age-related eye diseases: age-related macular degeneration, cataract, and glaucoma. Our intent is to allow vision scientists to determine where and how to harness the proteostatic machinery for extending functional homeostasis in the aging retina, lens, and trabecular meshwork. Several common themes have emerged despite these tissues having vastly different metabolisms. Continued exposure to insults, including chronic stress with advancing age, increases proteostatic burden and reduces the fidelity of the degradation machineries including the ubiquitin-proteasome and the autophagy-lysosome systems that recognize and remove damaged proteins. This "double jeopardy" results in an exponential accumulation of cytotoxic proteins with advancing age. We conclude with a discussion of the challenges in maintaining an appropriate balance of protein synthesis and degradation pathways, and suggest that harnessing proteostatic capacities should provide new opportunities to design interventions for attenuating age-related eye diseases before they limit sight.
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Affiliation(s)
- Jasper Weinberg
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, 02111, USA
| | - Mohita Gaur
- Neurobiology, Neurodegeneration & Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Anand Swaroop
- Neurobiology, Neurodegeneration & Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Allen Taylor
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, 02111, USA.
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3
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Lin S, Qiu L, Liang K, Zhang H, Xian M, Chen Z, Wei J, Fu S, Gong X, Ding K, Zhang Z, Hu B, Zhang X, Duan Y, Du H. KAT2A/ E2F1 Promotes Cell Proliferation and Migration via Upregulating the Expression of UBE2C in Pan-Cancer. Genes (Basel) 2022; 13:1817. [PMID: 36292703 PMCID: PMC9602169 DOI: 10.3390/genes13101817] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/28/2022] [Accepted: 09/30/2022] [Indexed: 07/28/2023] Open
Abstract
Various studies have shown that lysine acetyltransferase 2A (KAT2A), E2F transcription factor 1 (E2F1), and ubiquitin conjugating enzyme E2 C (UBE2C) genes regulated the proliferation and migration of tumor cells through regulating the cell cycle. However, there is a lack of in-depth and systematic research on their mechanisms of action. This study analyzed The Cancer Genome Atlas (TCGA) to screen potential candidate genes and the regulation network of KAT2A and E2F1 complex in pan-cancer. Quantitative real-time PCR (qRT-PCR) and Western blotting (WB), cell phenotype detection, immunofluorescence co-localization, chromatin immunoprecipitation assay (ChIP), and RNA-Seq techniques were used to explore the functional of a candidate gene, UBE2C. We found that the expression of these three genes was significantly higher in more than 10 tumor types compared to normal tissue. Moreover, UBE2C was mainly expressed in tumor cells, which highlighted the impacts of UBE2C as a specific therapeutic strategy. Moreover, KAT2A and E2F1 could promote cell proliferation and the migration of cancer cells by enhancing the expression of UBE2C. Mechanically, KAT2A was found to cooperate with E2F1 and be recruited by E2F1 to the UBE2C promoter for elevating the expression of UBE2C by increasing the acetylation level of H3K9.
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Affiliation(s)
- Shudai Lin
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Li Qiu
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Keying Liang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Haibo Zhang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Mingjian Xian
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Zixi Chen
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Jinfen Wei
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Shuying Fu
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Xiaocheng Gong
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Ke Ding
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Zihao Zhang
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Bowen Hu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Xiquan Zhang
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yuyou Duan
- Laboratory of Stem Cells and Translational Medicine, Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Hongli Du
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
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4
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Integrated Analysis of Transcriptome and Metabolome Reveals Distinct Responses of Pelteobagrus fulvidraco against Aeromonas veronii Infection at Invaded and Recovering Stage. Int J Mol Sci 2022; 23:ijms231710121. [PMID: 36077519 PMCID: PMC9456318 DOI: 10.3390/ijms231710121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Yellow catfish (Pelteobagrus fulvidraco) is an important aquaculture fish susceptible to Aeromonas veronii infection, which causes acute death resulting in huge economic losses. Understanding the molecular processes of host immune defense is indispensable to disease control. Here, we conducted the integrated and comparative analyses of the transcriptome and metabolome of yellow catfish in response to A. veronii infection at the invaded stage and recovering stage. The crosstalk between A. veronii-induced genes and metabolites uncovered the key biomarkers and pathways that strongest contribute to different response strategies used by yellow catfish at corresponding defense stages. We found that at the A. veronii invading stage, the immune defense was strengthened by synthesizing lipids with energy consumption to repair the skin defense line and accumulate lipid droplets promoting intracellular defense line; triggering an inflammatory response by elevating cytokine IL-6, IL-10 and IL-1β following PAMP-elicited mitochondrial signaling, which was enhanced by ROS produced by impaired mitochondria; and activating apoptosis by up-regulating caspase 3, 7 and 8 and Prostaglandin F1α, meanwhile down-regulating FoxO3 and BCL6. Apoptosis was further potentiated via oxidative stress caused by mitochondrial dysfunction and exceeding inflammatory response. Additionally, cell cycle arrest was observed. At the fish recovering stage, survival strategies including sugar catabolism with D-mannose decreasing; energy generation through the TCA cycle and Oxidative phosphorylation pathways; antioxidant protection by enhancing Glutathione (oxidized), Anserine, and α-ketoglutarate; cell proliferation by inducing Cyclin G2 and CDKN1B; and autophagy initiated by FoxO3, ATG8 and ATP6V1A were highlighted. This study provides a comprehensive picture of yellow catfish coping with A. veronii infection, which adds new insights for deciphering molecular mechanisms underlying fish immunity and developing stage-specific disease control techniques in aquaculture.
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Smith CE, Tsai YC, Liang YH, Khago D, Mariano J, Li J, Tarasov SG, Gergel E, Tsai B, Villaneuva M, Clapp ME, Magidson V, Chari R, Byrd RA, Ji X, Weissman AM. A structurally conserved site in AUP1 binds the E2 enzyme UBE2G2 and is essential for ER-associated degradation. PLoS Biol 2021; 19:e3001474. [PMID: 34879065 PMCID: PMC8699718 DOI: 10.1371/journal.pbio.3001474] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 12/23/2021] [Accepted: 11/05/2021] [Indexed: 12/22/2022] Open
Abstract
Endoplasmic reticulum-associated degradation (ERAD) is a protein quality control pathway of fundamental importance to cellular homeostasis. Although multiple ERAD pathways exist for targeting topologically distinct substrates, all pathways require substrate ubiquitination. Here, we characterize a key role for the UBE2G2 Binding Region (G2BR) of the ERAD accessory protein ancient ubiquitous protein 1 (AUP1) in ERAD pathways. This 27-amino acid (aa) region of AUP1 binds with high specificity and low nanomolar affinity to the backside of the ERAD ubiquitin-conjugating enzyme (E2) UBE2G2. The structure of the AUP1 G2BR (G2BRAUP1) in complex with UBE2G2 reveals an interface that includes a network of salt bridges, hydrogen bonds, and hydrophobic interactions essential for AUP1 function in cells. The G2BRAUP1 shares significant structural conservation with the G2BR found in the E3 ubiquitin ligase gp78 and in vitro can similarly allosterically activate ubiquitination in conjunction with ERAD E3s. In cells, AUP1 is uniquely required to maintain normal levels of UBE2G2; this is due to G2BRAUP1 binding to the E2 and preventing its rapid degradation. In addition, the G2BRAUP1 is required for both ER membrane recruitment of UBE2G2 and for its activation at the ER membrane. Thus, by binding to the backside of a critical ERAD E2, G2BRAUP1 plays multiple critical roles in ERAD.
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Affiliation(s)
- Christopher E. Smith
- Laboratory of Protein Dynamics and Signaling, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Yien Che Tsai
- Laboratory of Protein Dynamics and Signaling, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Yu-He Liang
- Center for Structural Biology, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Domarin Khago
- Center for Structural Biology, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Jennifer Mariano
- Laboratory of Protein Dynamics and Signaling, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Jess Li
- Center for Structural Biology, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Sergey G. Tarasov
- Center for Structural Biology, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Emma Gergel
- Laboratory of Protein Dynamics and Signaling, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Borong Tsai
- Laboratory of Protein Dynamics and Signaling, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Matthew Villaneuva
- Laboratory of Protein Dynamics and Signaling, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Michelle E. Clapp
- Genome Modification Core, Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Valentin Magidson
- Optical Microscopy and Analysis Laboratory, Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Raj Chari
- Genome Modification Core, Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - R. Andrew Byrd
- Center for Structural Biology, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Xinhua Ji
- Center for Structural Biology, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
| | - Allan M. Weissman
- Laboratory of Protein Dynamics and Signaling, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland, United States of America
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6
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Yang H, Zhang L, Wang Q. MicroRNA-221-3p alleviates cell apoptosis and inflammatory response by targeting cyclin dependent kinase inhibitor 1B in chronic obstructive pulmonary disease. Bioengineered 2021; 12:5705-5715. [PMID: 34516316 PMCID: PMC8806819 DOI: 10.1080/21655979.2021.1967837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
As a chronic bronchitis or emphysema featured by airflow obstruction, chronic obstructive pulmonary disease (COPD) can further develop into respiratory failure and pulmonary heart diseases. MicroRNAs (miRNAs) are crucial mediators in COPD. Nevertheless, the specific role and molecular mechanism of microRNA-221-3p (miR-221-3p) in COPD are unclear. This research aimed to probe into the role of miR-221-3p in COPD. Bioinformatics analysis and a series of assays including western blot, luciferase reporter, reverse transcription quantitative polymerase chain reaction, flow cytometry, cell counting kit-8 and enzyme linked immunosorbent assay were used to explore the functions and mechanism of miR-221-3p in COPD. First, miR-221-3p level was validated to be lowly expressed in the lung tissues of COPD patients and 16HBE cells stimulated by cigarette smoke extract (CSE). Functionally, miR-221-3p overexpression inhibited inflammatory response and apoptosis in CSE-treated 16HBE cells. Moreover, we predicted 5 potential targets of miR-221-3p and found that miR-221-3p shared binding site with cyclin dependent kinase inhibitor 1B (CDKN1B). CDKN1B was targeted by miR-221-3p in CSE-treated 16HBE cells. CDKN1B was negatively modulated by miR-221-3p. Finally, rescue experiments demonstrated that overexpressed CDKN1B counteracted the influences of miR-221-3p on apoptosis and inflammatory response in CSE-treated 16HBE cells. Our data showed that miR-221-3p alleviated cell apoptosis and inflammatory response via targeting CDKN1B in an in vitro model of COPD.
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Affiliation(s)
- Hua Yang
- Department of Gerontology, The First People's Hospital of Lianyungang, Xuzhou Medical University Affiliated Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Lijuan Zhang
- Department of Gerontology, The First People's Hospital of Lianyungang, Xuzhou Medical University Affiliated Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Quandong Wang
- Department of Gerontology, The First People's Hospital of Lianyungang, Xuzhou Medical University Affiliated Hospital of Lianyungang, Lianyungang, Jiangsu, China
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7
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Abu Ahmad Y, Oknin-Vaisman A, Bitman-Lotan E, Orian A. From the Evasion of Degradation to Ubiquitin-Dependent Protein Stabilization. Cells 2021; 10:2374. [PMID: 34572023 PMCID: PMC8469536 DOI: 10.3390/cells10092374] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 08/30/2021] [Accepted: 09/04/2021] [Indexed: 12/11/2022] Open
Abstract
A hallmark of cancer is dysregulated protein turnover (proteostasis), which involves pathologic ubiquitin-dependent degradation of tumor suppressor proteins, as well as increased oncoprotein stabilization. The latter is due, in part, to mutation within sequences, termed degrons, which are required for oncoprotein recognition by the substrate-recognition enzyme, E3 ubiquitin ligase. Stabilization may also result from the inactivation of the enzymatic machinery that mediates the degradation of oncoproteins. Importantly, inactivation in cancer of E3 enzymes that regulates the physiological degradation of oncoproteins, results in tumor cells that accumulate multiple active oncoproteins with prolonged half-lives, leading to the development of "degradation-resistant" cancer cells. In addition, specific sequences may enable ubiquitinated proteins to evade degradation at the 26S proteasome. While the ubiquitin-proteasome pathway was originally discovered as central for protein degradation, in cancer cells a ubiquitin-dependent protein stabilization pathway actively translates transient mitogenic signals into long-lasting protein stabilization and enhances the activity of key oncoproteins. A central enzyme in this pathway is the ubiquitin ligase RNF4. An intimate link connects protein stabilization with tumorigenesis in experimental models as well as in the clinic, suggesting that pharmacological inhibition of protein stabilization has potential for personalized medicine in cancer. In this review, we highlight old observations and recent advances in our knowledge regarding protein stabilization.
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Affiliation(s)
| | | | | | - Amir Orian
- Rappaport Faculty of Medicine, R-TICC, Technion-IIT, Efron St. Bat-Galim, Haifa 3109610, Israel; (Y.A.A.); (A.O.-V.); (E.B.-L.)
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8
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Peris-Moreno D, Malige M, Claustre A, Armani A, Coudy-Gandilhon C, Deval C, Béchet D, Fafournoux P, Sandri M, Combaret L, Taillandier D, Polge C. UBE2L3, a Partner of MuRF1/TRIM63, Is Involved in the Degradation of Myofibrillar Actin and Myosin. Cells 2021; 10:1974. [PMID: 34440743 PMCID: PMC8392593 DOI: 10.3390/cells10081974] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/21/2021] [Accepted: 07/28/2021] [Indexed: 12/12/2022] Open
Abstract
The ubiquitin proteasome system (UPS) is the main player of skeletal muscle wasting, a common characteristic of many diseases (cancer, etc.) that negatively impacts treatment and life prognosis. Within the UPS, the E3 ligase MuRF1/TRIM63 targets for degradation several myofibrillar proteins, including the main contractile proteins alpha-actin and myosin heavy chain (MHC). We previously identified five E2 ubiquitin-conjugating enzymes interacting with MuRF1, including UBE2L3/UbcH7, that exhibited a high affinity for MuRF1 (KD = 50 nM). Here, we report a main effect of UBE2L3 on alpha-actin and MHC degradation in catabolic C2C12 myotubes. Consistently UBE2L3 knockdown in Tibialis anterior induced hypertrophy in dexamethasone (Dex)-treated mice, whereas overexpression worsened the muscle atrophy of Dex-treated mice. Using combined interactomic approaches, we also characterized the interactions between MuRF1 and its substrates alpha-actin and MHC and found that MuRF1 preferentially binds to filamentous F-actin (KD = 46.7 nM) over monomeric G-actin (KD = 450 nM). By contrast with actin that did not alter MuRF1-UBE2L3 affinity, binding of MHC to MuRF1 (KD = 8 nM) impeded UBE2L3 binding, suggesting that differential interactions prevail with MuRF1 depending on both the substrate and the E2. Our data suggest that UBE2L3 regulates contractile proteins levels and skeletal muscle atrophy.
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Affiliation(s)
- Dulce Peris-Moreno
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
| | - Mélodie Malige
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
| | - Agnès Claustre
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
| | - Andrea Armani
- Department of Biomedical Sciences, Venetian Institute of Molecular Medicine, University of Padua, 35100 Padova, Italy; (A.A.); (M.S.)
| | - Cécile Coudy-Gandilhon
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
| | - Christiane Deval
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
| | - Daniel Béchet
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
| | - Pierre Fafournoux
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
| | - Marco Sandri
- Department of Biomedical Sciences, Venetian Institute of Molecular Medicine, University of Padua, 35100 Padova, Italy; (A.A.); (M.S.)
| | - Lydie Combaret
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
| | - Daniel Taillandier
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
| | - Cécile Polge
- Université Clermont Auvergne, INRAE, UNH Unité de Nutrition Humaine, F-63000 Clermont-Ferrand, France; (D.P.-M.); (M.M.); (A.C.); (C.C.-G.); (C.D.); (D.B.); (P.F.); (L.C.); (D.T.)
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9
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Du X, Song H, Shen N, Hua R, Yang G. The Molecular Basis of Ubiquitin-Conjugating Enzymes (E2s) as a Potential Target for Cancer Therapy. Int J Mol Sci 2021; 22:ijms22073440. [PMID: 33810518 PMCID: PMC8037234 DOI: 10.3390/ijms22073440] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/18/2021] [Accepted: 03/23/2021] [Indexed: 01/06/2023] Open
Abstract
Ubiquitin-conjugating enzymes (E2s) are one of the three enzymes required by the ubiquitin-proteasome pathway to connect activated ubiquitin to target proteins via ubiquitin ligases. E2s determine the connection type of the ubiquitin chains, and different types of ubiquitin chains regulate the stability and activity of substrate proteins. Thus, E2s participate in the regulation of a variety of biological processes. In recent years, the importance of E2s in human health and diseases has been particularly emphasized. Studies have shown that E2s are dysregulated in variety of cancers, thus it might be a potential therapeutic target. However, the molecular basis of E2s as a therapeutic target has not been described systematically. We reviewed this issue from the perspective of the special position and role of E2s in the ubiquitin-proteasome pathway, the structure of E2s and biological processes they are involved in. In addition, the inhibitors and microRNAs targeting E2s are also summarized. This article not only provides a direction for the development of effective drugs but also lays a foundation for further study on this enzyme in the future.
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Li L, Bai J, Fan H, Yan J, Li S, Jiang P. E2 ubiquitin-conjugating enzyme UBE2L6 promotes Senecavirus A proliferation by stabilizing the viral RNA polymerase. PLoS Pathog 2020; 16:e1008970. [PMID: 33104725 PMCID: PMC7588118 DOI: 10.1371/journal.ppat.1008970] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 09/08/2020] [Indexed: 12/29/2022] Open
Abstract
Senecavirus A (SVA), discovered in 2002, is an emerging pathogen of swine that has since been reported in numerous pork producing countries. To date, the mechanism of SVA replication remains poorly understood. In this study, utilizing iTRAQ analysis we found that UBE2L6, an E2 ubiquitin-conjugating enzyme, is up-regulated in SVA-infected BHK-21 cells, and that its overexpression promotes SVA replication. We determined that UBE2L6 interacts with, and ubiquitinates the RNA-dependent RNA polymerase of SVA, (the 3D protein) and this ubiquitination serves to inhibit the degradation of 3D. UBE2L6-mediated ubiquitination of 3D requires a cystine at residue 86 in UBE2L6, and lysines at residues 169 and 321 in 3D. Virus with mutations in 3D (rK169R and rK321R) exhibited significantly decreased replication compared to wild type SVA and the repaired viruses, rK169R(R) and rK321R(R). These data indicate that UBE2L6, the enzyme, targets the 3D polymerase, the substrate, during SVA infection to facilitate replication. Senecavirus A (SVA) is a newly emerging pathogen causing swine idiopathic vesicular disease and epidemic transient neonatal losses. Infections have been reported in many pork producing countries, yet the mechanism of SVA replication remains poorly understood. In this study, we found that UBE2L6, an E2 ubiquitin-conjugating enzyme, is up-regulated in SVA-infected BHK-21 cells. The viral RNA dependent RNA polymerase (RdRp) 3D is ubiquitinated by UBE2L6, and the lysines at residues 169 and 321 of 3D are the required ubiquitination sites. The level of replication of recombinant viruses harboring ubiquitination-deficient 3D was significantly decreased compared to parental SVA. Our data demonstrate that UBE2L6 ubiquitinates SVA 3D, thereby facilitating SVA infection. These results may make it possible to identify novel targets for disease treatment.
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Affiliation(s)
- Liang Li
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Juan Bai
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- * E-mail: (JB); (PJ)
| | - Hui Fan
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Junfang Yan
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Shihai Li
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Ping Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- * E-mail: (JB); (PJ)
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11
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Wang X, Bustos MA, Zhang X, Ramos RI, Tan C, Iida Y, Chang SC, Salomon MP, Tran K, Gentry R, Kravtsova-Ivantsiv Y, Kelly DF, Mills GB, Ciechanover A, Mao Y, Hoon DS. Downregulation of the Ubiquitin-E3 Ligase RNF123 Promotes Upregulation of the NF-κB1 Target SerpinE1 in Aggressive Glioblastoma Tumors. Cancers (Basel) 2020; 12:E1081. [PMID: 32349217 PMCID: PMC7281601 DOI: 10.3390/cancers12051081] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/22/2020] [Accepted: 04/25/2020] [Indexed: 12/28/2022] Open
Abstract
This study examined the role of the ubiquitin E3-ligase RNF123 in modulating downstream NF-κB1 targets in glioblastoma (GB) tumor progression. Our findings revealed an oncogenic pathway (miR-155-5p-RNF123-NF-κB1-p50-SerpinE1) that may represent a new therapeutic target pathway for GB patients with isocitrate dehydrogenase 1 and 2 (IDH) WT (wild type). Mechanistically, we demonstrated that RNF123 is downregulated in IDH WT GB patients and leads to the reduction of p50 levels. RNA-sequencing, reverse-phase protein arrays, and in vitro functional assays on IDH WT GB cell lines with RNF123 overexpression showed that SerpinE1 was a downstream target that is negatively regulated by RNF123. SERPINE1 knockdown reduced the proliferation and invasion of IDH WT GB cell lines. Both SerpinE1 and miR-155-5p overexpression negatively modulated RNF123 expression. In clinical translational analysis, RNF123, SerpinE1, and miR-155-5p were all associated with poor outcomes in GB patients. Multivariable analysis in IDH WT GB patients showed that concurrent low RNF123 and high SerpinE1 was an independent prognostic factor in predicting poor overall survival (p < 0.001, hazard ratio (HR) = 2.93, 95% confidence interval (CI) 1.7-5.05), and an increased risk of recurrence (p < 0.001, relative risk (RR) = 3.56, 95% CI 1.61-7.83).
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Affiliation(s)
- Xiaowen Wang
- Department of Translational Molecular Medicine, John Wayne Cancer Institute (JWCI) at Providence Saint John’s Health Center, Santa Monica, CA 90404, USA; (X.W.); (M.A.B.); (X.Z.); (R.I.R.); (Y.I.); (M.P.S.); (K.T.); (R.G.); (Y.M.)
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Matias A. Bustos
- Department of Translational Molecular Medicine, John Wayne Cancer Institute (JWCI) at Providence Saint John’s Health Center, Santa Monica, CA 90404, USA; (X.W.); (M.A.B.); (X.Z.); (R.I.R.); (Y.I.); (M.P.S.); (K.T.); (R.G.); (Y.M.)
| | - Xiaoqing Zhang
- Department of Translational Molecular Medicine, John Wayne Cancer Institute (JWCI) at Providence Saint John’s Health Center, Santa Monica, CA 90404, USA; (X.W.); (M.A.B.); (X.Z.); (R.I.R.); (Y.I.); (M.P.S.); (K.T.); (R.G.); (Y.M.)
| | - Romela Irene Ramos
- Department of Translational Molecular Medicine, John Wayne Cancer Institute (JWCI) at Providence Saint John’s Health Center, Santa Monica, CA 90404, USA; (X.W.); (M.A.B.); (X.Z.); (R.I.R.); (Y.I.); (M.P.S.); (K.T.); (R.G.); (Y.M.)
| | - Cong Tan
- Department of Pathology, Cancer Hospital, Fudan University, Shanghai 200032, China;
| | - Yuuki Iida
- Department of Translational Molecular Medicine, John Wayne Cancer Institute (JWCI) at Providence Saint John’s Health Center, Santa Monica, CA 90404, USA; (X.W.); (M.A.B.); (X.Z.); (R.I.R.); (Y.I.); (M.P.S.); (K.T.); (R.G.); (Y.M.)
| | - Shu-Ching Chang
- Medical Data Research Center, Providence Saint Joseph’s Health, Portland, OR 97225, USA;
| | - Matthew P. Salomon
- Department of Translational Molecular Medicine, John Wayne Cancer Institute (JWCI) at Providence Saint John’s Health Center, Santa Monica, CA 90404, USA; (X.W.); (M.A.B.); (X.Z.); (R.I.R.); (Y.I.); (M.P.S.); (K.T.); (R.G.); (Y.M.)
| | - Kevin Tran
- Department of Translational Molecular Medicine, John Wayne Cancer Institute (JWCI) at Providence Saint John’s Health Center, Santa Monica, CA 90404, USA; (X.W.); (M.A.B.); (X.Z.); (R.I.R.); (Y.I.); (M.P.S.); (K.T.); (R.G.); (Y.M.)
| | - Rebecca Gentry
- Department of Translational Molecular Medicine, John Wayne Cancer Institute (JWCI) at Providence Saint John’s Health Center, Santa Monica, CA 90404, USA; (X.W.); (M.A.B.); (X.Z.); (R.I.R.); (Y.I.); (M.P.S.); (K.T.); (R.G.); (Y.M.)
| | - Yelena Kravtsova-Ivantsiv
- The David and Janet Polak Cancer and Vascular Biology Research Center, The Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Efron Street, Bat-Galim, Haifa 31096, Israel; (Y.K.-I.); (A.C.)
| | - Daniel F. Kelly
- Pacific Neuroscience Institute, JWCI, Santa Monica, CA 90404, USA;
| | - Gordon B. Mills
- Department of Cell Development and Cancer Biology, Knight Cancer Institute, Portland, OR 97239, USA;
| | - Aaron Ciechanover
- The David and Janet Polak Cancer and Vascular Biology Research Center, The Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Efron Street, Bat-Galim, Haifa 31096, Israel; (Y.K.-I.); (A.C.)
| | - Ying Mao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- The Collaborative Innovation Center for Brain Science, Fudan University, Shanghai 200032, China
| | - Dave S.B. Hoon
- Department of Translational Molecular Medicine, John Wayne Cancer Institute (JWCI) at Providence Saint John’s Health Center, Santa Monica, CA 90404, USA; (X.W.); (M.A.B.); (X.Z.); (R.I.R.); (Y.I.); (M.P.S.); (K.T.); (R.G.); (Y.M.)
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12
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Wang Y, Zhao S, Chen Y, Wang T, Dong C, Wo X, Zhang J, Dong Y, Xu W, Feng X, Qu C, Wang Y, Zhong Z, Zhao W. The Capsid Protein VP1 of Coxsackievirus B Induces Cell Cycle Arrest by Up-Regulating Heat Shock Protein 70. Front Microbiol 2019; 10:1633. [PMID: 31379784 PMCID: PMC6653663 DOI: 10.3389/fmicb.2019.01633] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 07/02/2019] [Indexed: 01/04/2023] Open
Abstract
Manipulating cell cycle is one of the common strategies used by viruses to generate favorable cellular environment to facilitate viral replication. Coxsackievirus B (CVB) is one of the major viral pathogens of human myocarditis and cardiomyopathy. Because of its small genome, CVB depends on cellular machineries for productive replication. However, how the structural and non-structural components of CVB would manipulate cell cycle is not clearly understood. In this study, we demonstrated that the capsid protein VP1 of CVB type 3 (CVB3) induced cell cycle arrest at G1 phase. G1 arrest was the result of the decrease level of cyclin E and the accumulation of p27Kip1. Study on the gene expression profile of the cells expressing VP1 showed that the expression of both heat shock protein 70-1 (Hsp70-1) and Hsp70-2 was significantly up-regulated. Knockdown of Hsp70 resulted in the increased level of cyclin E and the reduction of p27Kip1. We further demonstrated that the phosphorylation of the heat shock factor 1, which directly promotes the expression of Hsp70, was also increased in the cell expressing VP1. Moreover, we show that CVB3 infection also induced G1 arrest, likely due to dysregulating Hsp70, cyclin E, and p27, while knockdown of Hsp70 dramatically inhibited viral replication. Cell cycle arrest at G1 phase facilitated CVB3 infection, since viral replication in the cells synchronized at G1 phase dramatically increased. Taken together, this study demonstrates that the VP1 of CVB3 induces cell cycle arrest at G1 phase through up-regulating Hsp70. Our findings suggest that the capsid protein VP1 of CVB is capable of manipulating cellular activities during viral infection.
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Affiliation(s)
- Yao Wang
- Department of Cell Biology, Harbin Medical University, Harbin, China
| | - Shuoxuan Zhao
- Department of Cell Biology, Harbin Medical University, Harbin, China
| | - Yang Chen
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Tianying Wang
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Chaorun Dong
- Northern Translational Medicine Research Center, Harbin Medical University, Harbin, China
| | - Xiaoman Wo
- Department of Cell Biology, Harbin Medical University, Harbin, China
| | - Jian Zhang
- Department of Cell Biology, Harbin Medical University, Harbin, China
| | - Yanyan Dong
- Department of Cell Biology, Harbin Medical University, Harbin, China
| | - Weizhen Xu
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Xiaofeng Feng
- Department of Cell Biology, Harbin Medical University, Harbin, China
| | - Cong Qu
- Department of Cell Biology, Harbin Medical University, Harbin, China
| | - Yan Wang
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Zhaohua Zhong
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Wenran Zhao
- Department of Cell Biology, Harbin Medical University, Harbin, China
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13
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Liu J, Yu J, Jiang W, He M, Zhao J. Targeting of CDKN1B by miR-222-3p may contribute to the development of intervertebral disc degeneration. FEBS Open Bio 2019; 9:728-735. [PMID: 30984546 PMCID: PMC6443998 DOI: 10.1002/2211-5463.12609] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/06/2019] [Accepted: 02/07/2019] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) are small endogenous non‐coding RNAs that can negatively regulate the expression of their complementary mRNA targets, and have been implicated in various pathophysiological processes. In this study, we examined the effect of miR‐222‐3p on intervertebral disc degeneration (IDD). We found that expression of miR‐222‐3p was significantly higher in IDD tissues than in normal intervertebral disc tissue, and report that overexpression of miR‐222‐3p remarkably increased apoptosis and reduced proliferation of nucleus pulposus (NP) cells. In addition, miR‐222‐3p promoted secretion of matrix metalloproteinase‐3, and decreased collagen type II and aggrecan production. Cyclin‐dependent kinase inhibitor 1B (CDKN1B) was identified as a direct target of negative regulation by miR‐222‐3p in NP cells, and expression of miR‐222‐3p was found to be negatively correlated with that of CDKN1B in IDD tissue. Finally, we observed that transfection with miR‐222‐3p dramatically reduced CDKN1B expression in NP cells. In conclusion, miR‐222‐3p may be involved in IDD development, possibly through targeting CDKN1B.
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Affiliation(s)
- Jianwei Liu
- Department of Osteology The Third Affiliated Hospital of Guangxi Medical University Nanning China.,Department of Spine Osteopathia The First Affiliated Hospital of Guangxi Medical University Nanning China
| | - Jia Yu
- Department of Osteology The Third Affiliated Hospital of Guangxi Medical University Nanning China
| | - Weiping Jiang
- Department of Osteology The Third Affiliated Hospital of Guangxi Medical University Nanning China
| | - Maolin He
- Department of Spine Osteopathia The First Affiliated Hospital of Guangxi Medical University Nanning China
| | - Jinmin Zhao
- Department of Spine Osteopathia The First Affiliated Hospital of Guangxi Medical University Nanning China.,Guangxi Key Laboratory of Regenerative Medicine International Joint Laboratory on Regeneration of Bone and Soft Tissue The First Affiliated Hospital of Guangxi Medical University Guangxi Medical University Nanning China
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