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Zhou Y, Li H, Zhang Y, Zhao E, Huang C, Pan X, Shu F, Liu Z, Tang N, Li F, Liao W. Deubiquitinase USP4 suppresses antitumor immunity by inhibiting IRF3 activation and tumor cell-intrinsic interferon response in colorectal cancer. Cancer Lett 2024; 589:216836. [PMID: 38556105 DOI: 10.1016/j.canlet.2024.216836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/15/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
Despite the approval of immune checkpoint blockade (ICB) therapy for various tumor types, its effectiveness is limited to only approximately 15% of patients with microsatellite instability-high (MSI-H) or mismatch repair deficiency (dMMR) colorectal cancer (CRC). Approximately 80%-85% of CRC patients have a microsatellite stability (MSS) phenotype, which features a rare T-cell infiltration. Thus, elucidating the mechanisms underlying resistance to ICB in patients with MSS CRC is imperative. In this study, we demonstrate that ubiquitin-specific peptidase 4 (USP4) is upregulated in MSS CRC tumors and negatively regulates the immune response against tumors in CRC. Additionally, USP4 represses the cellular interferon (IFN) response and antigen presentation and impairs PRR signaling-mediated cell death. Mechanistically, USP4 impedes the nuclear localization of interferon regulator Factor 3 (IRF3) by deubiquitinating the K63-polyubiquitin chain of TRAF6 and IRF3. Knockdown of USP4 enhances the infiltration of T cells in CRC tumors and overcomes ICB resistance in an MC38 syngeneic mouse model. Moreover, published datasets revealed that patients showing higher USP4 expression exhibited decreased responsiveness to anti-PD-L1 therapy. These findings highlight an essential role of USP4 in the suppression of antitumor immunity in CRC.
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Affiliation(s)
- Yi Zhou
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Huali Li
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Yaxin Zhang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Enen Zhao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Chengmei Huang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Xingyan Pan
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Feng Shu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Zhihao Liu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Na Tang
- Department of Pathology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
| | - Fengtian Li
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China; School of Biosciences and Technology, Chengdu Medical College, Chengdu, 610500, Sichuan, China.
| | - Wenting Liao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.
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Kim J, Taketomi T, Yamada A, Uematsu Y, Ueda K, Chiba T, Tsuruta F. USP4 regulates TUT1 ubiquitination status in concert with SART3. Biochem Biophys Res Commun 2024; 701:149557. [PMID: 38310689 DOI: 10.1016/j.bbrc.2024.149557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/06/2024]
Abstract
The ubiquitin system plays pivotal roles in diverse cellular processes, including signal transduction, transcription and translation, organelle quality control, and protein degradation. Recent investigations have revealed the regulatory influence of ubiquitin systems on RNA metabolism. Previously, we reported that the deubiquitinating enzyme, ubiquitin specific peptidase 15 (USP15), promotes deubiquitination of terminal uridylyl transferase 1 (TUT1), a key regulator within the U4/U6 spliceosome, thereby instigating significant alterations in global RNA splicing [1]. In this study, we report that ubiquitin specific peptidase 4 (USP4), a homologous protein to USP15, also exerts control over the ubiquitination status of TUT1. Analogous to USP15, the expression of USP4 results in a reduction of TUT1 ubiquitination. Furthermore, squamous cell carcinoma antigen recognized by T-cells 3 (SART3) collaborates in enhancing the deubiquitinating activity of USP4 towards TUT1. A crucial revelation is that USP4 orchestrates the subnuclear relocation of TUT1 from the nucleolus to the nucleoplasm and facilitates the stability of U6 small nuclear RNA (snRNA). Notably, USP4 has a more profound effect on TUT1 redistribution compared to USP15. Our findings suggest that USP4 intricately modulates the ubiquitination status of TUT1, thereby exerting pronounced effects on the spliceosome functions.
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Affiliation(s)
- Jaehyun Kim
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Takumi Taketomi
- Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Atsuma Yamada
- College of Biological Sciences, School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Yukino Uematsu
- Master's and Doctoral Program in Biology, Degree Programs in Life and Earth Sciences, Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Kentaro Ueda
- College of Biological Sciences, School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Tomoki Chiba
- Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan; Ph.D. Program in Humanics, School of Integrative and Global Majors, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan; Master's and Doctoral Program in Biology, Institute of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Fuminori Tsuruta
- Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan; Master's and Doctoral Program in Neuroscience, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan; Ph.D. Program in Humanics, School of Integrative and Global Majors, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan; Master's and Doctoral Program in Biology, Institute of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.
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3
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Bolhuis DL, Emanuele MJ, Brown NG. Friend or foe? Reciprocal regulation between E3 ubiquitin ligases and deubiquitinases. Biochem Soc Trans 2024; 52:BST20230454. [PMID: 38414432 PMCID: PMC11349938 DOI: 10.1042/bst20230454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 02/29/2024]
Abstract
Protein ubiquitination is a post-translational modification that entails the covalent attachment of the small protein ubiquitin (Ub), which acts as a signal to direct protein stability, localization, or interactions. The Ub code is written by a family of enzymes called E3 Ub ligases (∼600 members in humans), which can catalyze the transfer of either a single ubiquitin or the formation of a diverse array of polyubiquitin chains. This code can be edited or erased by a different set of enzymes termed deubiquitinases (DUBs; ∼100 members in humans). While enzymes from these distinct families have seemingly opposing activities, certain E3-DUB pairings can also synergize to regulate vital cellular processes like gene expression, autophagy, innate immunity, and cell proliferation. In this review, we highlight recent studies describing Ub ligase-DUB interactions and focus on their relationships.
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Affiliation(s)
- Derek L Bolhuis
- Department of Biochemistry and Biophysics, UNC Chapel Hill School of Medicine, Chapel Hill, NC, 27599
| | - Michael J Emanuele
- Department of Pharmacology and Lineberger Comprehensive Care Center, UNC Chapel Hill School of Medicine, Chapel Hill, NC, 27599
| | - Nicholas G Brown
- Department of Pharmacology and Lineberger Comprehensive Care Center, UNC Chapel Hill School of Medicine, Chapel Hill, NC, 27599
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4
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Jiang W, Li M, Peng S, Hu T, Long Y, Zhang J, Peng D, Shen Y. Ubiquitin ligase enzymes and de-ubiquitinating enzymes regulate innate immunity in the TLR, NLR, RLR, and cGAS-STING pathways. Immunol Res 2023; 71:800-813. [PMID: 37291329 DOI: 10.1007/s12026-023-09400-5] [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: 12/22/2022] [Accepted: 06/01/2023] [Indexed: 06/10/2023]
Abstract
Ubiquitination (or ubiquitylation) and de-ubiquitination, which are both post-translational modifications (PTMs) of proteins, have become a research hotspot in recent years. Some ubiquitinated or de-ubiquitinated signaling proteins have been found to promote or suppress innate immunity through Toll-like receptor (TLR), RIG-like receptor (RIG-I-like receptor, RLR), NOD-like receptor (NLR), and the cyclic guanosine monophosphate (GMP)-adenosine monophosphate (AMP) synthase (cGAS)-STING pathway. This article aimed to provide a review on the role of ubiquitination and de-ubiquitination, especially ubiquitin ligase enzymes and de-ubiquitinating enzymes, in the above four pathways. We hope that our work can contribute to the research and development of treatment strategies for innate immunity-related diseases such as inflammatory bowel disease.
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Affiliation(s)
- Wang Jiang
- Department of Digestive Diseases, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, 161 Shaoshan Road, Changsha City, 410000, People's Republic of China
| | - Mengling Li
- Department of Digestive Diseases, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, 161 Shaoshan Road, Changsha City, 410000, People's Republic of China
| | - Siyuan Peng
- Department of Digestive Diseases, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, 161 Shaoshan Road, Changsha City, 410000, People's Republic of China
| | - Tian Hu
- Department of Digestive Diseases, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, 161 Shaoshan Road, Changsha City, 410000, People's Republic of China
| | - Yan Long
- Department of Digestive Diseases, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, 161 Shaoshan Road, Changsha City, 410000, People's Republic of China
| | - Jiayi Zhang
- Department of Digestive Diseases, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, 161 Shaoshan Road, Changsha City, 410000, People's Republic of China
| | - Dan Peng
- Department of Digestive Diseases, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, 161 Shaoshan Road, Changsha City, 410000, People's Republic of China
| | - Yueming Shen
- Department of Digestive Diseases, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, 161 Shaoshan Road, Changsha City, 410000, People's Republic of China.
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5
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Ren J, Yu P, Liu S, Li R, Niu X, Chen Y, Zhang Z, Zhou F, Zhang L. Deubiquitylating Enzymes in Cancer and Immunity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303807. [PMID: 37888853 PMCID: PMC10754134 DOI: 10.1002/advs.202303807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 08/30/2023] [Indexed: 10/28/2023]
Abstract
Deubiquitylating enzymes (DUBs) maintain relative homeostasis of the cellular ubiquitome by removing the post-translational modification ubiquitin moiety from substrates. Numerous DUBs have been demonstrated specificity for cleaving a certain type of ubiquitin linkage or positions within ubiquitin chains. Moreover, several DUBs perform functions through specific protein-protein interactions in a catalytically independent manner, which further expands the versatility and complexity of DUBs' functions. Dysregulation of DUBs disrupts the dynamic equilibrium of ubiquitome and causes various diseases, especially cancer and immune disorders. This review summarizes the Janus-faced roles of DUBs in cancer including proteasomal degradation, DNA repair, apoptosis, and tumor metastasis, as well as in immunity involving innate immune receptor signaling and inflammatory and autoimmune disorders. The prospects and challenges for the clinical development of DUB inhibitors are further discussed. The review provides a comprehensive understanding of the multi-faced roles of DUBs in cancer and immunity.
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Affiliation(s)
- Jiang Ren
- The Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhen518033P. R. China
| | - Peng Yu
- Zhongshan Institute for Drug DiscoveryShanghai Institute of Materia MedicaChinese Academy of SciencesZhongshanGuangdongP. R. China
| | - Sijia Liu
- International Biomed‐X Research CenterSecond Affiliated Hospital of Zhejiang University School of MedicineZhejiang UniversityHangzhouP. R. China
- Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang ProvinceHangzhou310058China
| | - Ran Li
- The Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhen518033P. R. China
| | - Xin Niu
- MOE Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058P. R. China
| | - Yan Chen
- The Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhen518033P. R. China
| | - Zhenyu Zhang
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan450003P. R. China
| | - Fangfang Zhou
- Institutes of Biology and Medical ScienceSoochow UniversitySuzhou215123P. R. China
| | - Long Zhang
- The Eighth Affiliated HospitalSun Yat‐sen UniversityShenzhen518033P. R. China
- International Biomed‐X Research CenterSecond Affiliated Hospital of Zhejiang University School of MedicineZhejiang UniversityHangzhouP. R. China
- MOE Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058P. R. China
- Cancer CenterZhejiang UniversityHangzhouZhejiang310058P. R. China
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6
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Xu J, Guo R, Wen N, Li L, Yi Y, Chen J, He Z, Yang J, Xiao ZXJ, Niu M. FBXO3 stabilizes USP4 and Twist1 to promote PI3K-mediated breast cancer metastasis. PLoS Biol 2023; 21:e3002446. [PMID: 38134227 PMCID: PMC10745200 DOI: 10.1371/journal.pbio.3002446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 11/24/2023] [Indexed: 12/24/2023] Open
Abstract
Tumor metastasis is the major cause of breast cancer morbidity and mortality. It has been reported that the F-box protein FBXO3 functions as an E3 ubiquitin ligase in regulating various biological processes, including host autoimmune, antiviral innate immunity, and inflammatory response. However, the role of FBXO3 in tumor metastasis remains elusive. We have previously shown that ΔNp63α is a common inhibitory target in oncogene-induced cell motility and tumor metastasis. In this study, we show that FBXO3 plays a vital role in PI3K-mediated breast cancer metastasis independent of its E3 ligase activity and ΔNp63α in breast cancer cells and in mouse. FBXO3 can bind to and stabilize USP4, leading to Twist1 protein stabilization and increased breast cancer cell migration and tumor metastasis. Mechanistically, FBXO3 disrupts the interaction between USP4 and aspartyl aminopeptidase (DNPEP), thereby protecting USP4 from DNPEP-mediated degradation. Furthermore, p110αH1047R facilitates the phosphorylation and stabilization of FBXO3 in an ERK1-dependent manner. Knockdown of either FBXO3 or USP4 leads to significant inhibition of PI3K-induced breast cancer metastasis. Clinically, elevated expression of p110α/FBXO3/USP4/Twist1 is associated with poor overall survival (OS) and recurrence-free survival (RFS) of breast cancer patients. Taken together, this study reveals that the FBXO3-USP4-Twist1 axis is pivotal in PI3K-mediated breast tumor metastasis and that FBXO3/USP4 may be potential therapeutic targets for breast cancer treatment.
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Affiliation(s)
- Jing Xu
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Rongtian Guo
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Nasi Wen
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Luping Li
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yong Yi
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Jingzhen Chen
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Zongyu He
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Jian Yang
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Zhi-Xiong Jim Xiao
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Mengmeng Niu
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
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7
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Christofyllakis K, Neumann F, Bewarder M, Thurner L, Kaddu-Mulindwa D, Kos IA, Lesan V, Bittenbring JT. Vitamin D Enhances Immune Effector Pathways of NK Cells Thus Providing a Mechanistic Explanation for the Increased Effectiveness of Therapeutic Monoclonal Antibodies. Nutrients 2023; 15:3498. [PMID: 37630689 PMCID: PMC10457932 DOI: 10.3390/nu15163498] [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: 06/16/2023] [Revised: 08/01/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Patients with diffuse large cell lymphoma who have an adequate vitamin D supply derive significantly more benefit from immuno-chemotherapy with rituximab than patients with vitamin D deficiency; this is especially true for female patients. We have already been able to show that vitamin D increases the antibody-dependent cytotoxicity (ADCC) of NK cells in a sex-dependent manner, but it is unclear how vitamin D makes NK cells more efficient. METHODS Healthy individuals with vitamin D deficiency were supplemented with vitamin D to sufficient levels. NK cells were isolated from blood samples before and after vitamin D saturation. For transcriptome analysis, we used the Affymetrix Gene-Chip 2.0™. Gene expression analysis as well as supervised and unsupervised pathway analysis were performed. RESULTS Among others the "NK cell-associated cytotoxicity pathway" increased after vitamin D substitution. Five IFN-α subtypes (2, 4, 6, 7 and 10) and IFN-κ were more highly expressed and are mainly responsible in these pathways. In contrast, the pathway "interferon-gamma response", as well as other sets in cytokine production and chemotaxis showed a reduction. Toll-like receptor genes (TLR-8, TLR-7, TLR-2) were downregulated and, therefore, are responsible for the decline of these pathways. The same could be shown for the "ubiquitin-ligase" pathway. CONCLUSIONS Increased expression of several IFN-α subtypes may explain the increased ADCC of NK cells in vitamin D-replenished and otherwise healthy subjects. Other regulators of interferon production and ADCC are compensatory upregulated in compensation, such as Toll-like receptors and those of the ubiquitin ligase, and normalize after vitamin D substitution.
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Affiliation(s)
| | | | | | | | | | | | | | - Joerg Thomas Bittenbring
- Department of Internal Medicine 1, Oncology, Hematology, Clinical Immunology and Rheumatology, Saarland University Medical Center, 66421 Homburg, Germany; (K.C.); (F.N.); (M.B.); (L.T.); (D.K.-M.); (I.A.K.); (V.L.)
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8
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Li Y, Peng J, Xia Y, Pan C, Li Y, Gu W, Wang J, Wang C, Wang Y, Song J, Zhou X, Ma L, Jiang Y, Liu B, Feng Q, Wang W, Jiao S, An L, Li D, Zhou Z, Zhao Y. Sufu limits sepsis-induced lung inflammation via regulating phase separation of TRAF6. Theranostics 2023; 13:3761-3780. [PMID: 37441604 PMCID: PMC10334838 DOI: 10.7150/thno.83676] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 06/18/2023] [Indexed: 07/15/2023] Open
Abstract
Rationale: Sepsis is a potentially life-threatening condition caused by the body's response to a severe infection. Although the identification of multiple pathways involved in inflammation, tissue damage and aberrant healing during sepsis, there remain unmet needs for the development of new therapeutic strategies essential to prevent the reoccurrence of infection and organ injuries. Methods: Expression of Suppressor of Fused (Sufu) was evaluated by qRT-PCR, western blotting, and immunofluorescence in murine lung and peritoneal macrophages. The significance of Sufu expression in prognosis was assessed by Kaplan-Meier survival analysis. The GFP-TRAF6-expressing stable cell line (GFP-TRAF6 Blue cells) were constructed to evaluate phase separation of TRAF6. Phase separation of TRAF6 and the roles of Sufu in repressing TRAF6 droplet aggregation were analyzed by co-immunoprecipitation, immunofluorescence, Native-PAGE, FRAP and in vitro assays using purified proteins. The effects of Sufu on sepsis-induced lung inflammation were evaluated by cell function assays, LPS-induced septic shock model and polymicrobial sepsis-CLP mice model. Results: We found that Sufu expression is reduced in early response to lipopolysaccharide (LPS)-induced acute inflammation in murine lung and peritoneal macrophages. Deletion of Sufu aggravated LPS-induced and CLP (cecal ligation puncture)-induced lung injury and lethality in mice, and augmented LPS-induced proinflammatory gene expression in cultured macrophages. In addition, we identified the role of Sufu as a negative regulator of the Toll-Like Receptor (TLR)-triggered inflammatory response. We further demonstrated that Sufu directly interacts with TRAF6, thereby preventing oligomerization and autoubiquitination of TRAF6. Importantly, TRAF6 underwent phase separation during LPS-induced inflammation, which is essential for subsequent ubiquitination activation and NF-κB activity. Sufu inhibits the phase-separated TRAF6 droplet formation, preventing NF-κB activation upon LPS stimulation. In a septic shock model, TRAF6 depletion rescued the augmented inflammatory phenotype in mice with myeloid cell-specific deletion of Sufu. Conclusions: These findings implicated Sufu as an important inhibitor of TRAF6 in sepsis and suggest that therapeutics targeting Sufu-TRAF6 may greatly benefit the treatment of sepsis.
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Affiliation(s)
- Yehua Li
- College of Life Sciences, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
| | - Jiayin Peng
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
| | - Yuanxin Xia
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Chenyu Pan
- Center for Clinical Research and Translational Medicine, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200090, P. R. China
| | - Yu Li
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
| | - Weijie Gu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jia Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Chaoxiong Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yuang Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jiawen Song
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xuan Zhou
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Liya Ma
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yiao Jiang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Biao Liu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Qiongni Feng
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Wenjia Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai 200438, P. R. China
| | - Shi Jiao
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai 200438, P. R. China
| | - Liwei An
- Department of Medical Ultrasound, Tongji University Cancer Center, Shanghai Tenth People's Hospital, Shanghai 200072, P. R. China
| | - Dianfan Li
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhaocai Zhou
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai 200438, P. R. China
| | - Yun Zhao
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. China
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9
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Jang JH, Jung IY, Kim H, Cho JH. Rainbow trout USP4 downregulates LPS-induced inflammation by removing the K63-linked ubiquitin chain on TAK1. FISH & SHELLFISH IMMUNOLOGY 2022; 131:1019-1026. [PMID: 36372204 DOI: 10.1016/j.fsi.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/27/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Ubiquitin-specific protease 4 (USP4) is pivotal in negatively regulating the Toll-like receptor (TLR) signaling-mediated innate immune response. Although USP4 has been well studied in mammals, its role in TLR signaling pathways in fish remains largely unknown. In this study, we investigated the role of USP4 (OmUSP4) in regulating TLR response in rainbow trout Oncorhynchus mykiss. OmUSP4 contained the characteristic domains conserved in other USP4s: domain in USP (DUSP), ubiquitin-like (UBL), and the bi-part catalytic domain known as USP. OmUSP4 expression was increased in RTH-149 cells by stimulation with fish-pathogenic bacteria and bacterial ligands. Gain- and loss-of-function experiments revealed that OmUSP4 mitigated the activation of MAPKs and NF-κB, as well as the expression of pro-inflammatory cytokines in LPS-stimulated cells. OmUSP4 interacted with TAK1, a critical mediator in TLR-mediated NF-κB signaling pathways. LPS stimulation increased the K63-linked polyubiquitination of TAK1, which was significantly suppressed when OmUSP4 was compelled to be overexpressed. These results imply that OmUSP4 might function like mammals to downregulate LPS-induced inflammation in rainbow trout by removing the K63-linked ubiquitin chain on TAK1.
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Affiliation(s)
- Ju Hye Jang
- Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, South Korea
| | - In Young Jung
- Division of Applied Life Science (BK21Four), Gyeongsang National University, Jinju, 52828, South Korea
| | - Hyun Kim
- Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, South Korea
| | - Ju Hyun Cho
- Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, South Korea; Division of Applied Life Science (BK21Four), Gyeongsang National University, Jinju, 52828, South Korea; Division of Life Science, Gyeongsang National University, Jinju, 52828, South Korea.
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10
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Ciaston I, Dobosz E, Potempa J, Koziel J. The subversion of toll-like receptor signaling by bacterial and viral proteases during the development of infectious diseases. Mol Aspects Med 2022; 88:101143. [PMID: 36152458 PMCID: PMC9924004 DOI: 10.1016/j.mam.2022.101143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/29/2022] [Accepted: 09/09/2022] [Indexed: 02/05/2023]
Abstract
Toll-like receptors (TLRs) are pattern recognition receptors (PRRs) that respond to pathogen-associated molecular patterns (PAMPs). The recognition of specific microbial ligands by TLRs triggers an innate immune response and also promotes adaptive immunity, which is necessary for the efficient elimination of invading pathogens. Successful pathogens have therefore evolved strategies to subvert and/or manipulate TLR signaling. Both the impairment and uncontrolled activation of TLR signaling can harm the host, causing tissue destruction and allowing pathogens to proliferate, thus favoring disease progression. In this context, microbial proteases are key virulence factors that modify components of the TLR signaling pathway. In this review, we discuss the role of bacterial and viral proteases in the manipulation of TLR signaling, highlighting the importance of these enzymes during the development of infectious diseases.
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Affiliation(s)
- Izabela Ciaston
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Ewelina Dobosz
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Jan Potempa
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Department of Oral Health and Systemic Disease, University of Louisville School of Dentistry, University of Louisville, Louisville, KY, USA.
| | - Joanna Koziel
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.
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11
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Zhang Y, Huang L, Gao X, Qin Q, Huang X, Huang Y. Grouper USP12 exerts antiviral activity against nodavirus infection. FISH & SHELLFISH IMMUNOLOGY 2022; 121:332-341. [PMID: 35032679 DOI: 10.1016/j.fsi.2022.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/05/2022] [Accepted: 01/08/2022] [Indexed: 06/14/2023]
Abstract
The ubiquitin-specific proteases (USPs) have attracted particular attention due to their multiple functions in different biological processes. USP12, a member of the USP family, has been demonstrated to exert critical roles in diverse cellular processes, including cell death, cancer and antiviral immunity. Here, we cloned a USP12 homolog from orange spotted grouper (Epinephelus coioides, E. coioides), and its roles in fish RNA virus replication were investigated. EcUSP12 contained a 1119-bp open reading frame (ORF) encoding a 372-amino acid polypeptide, which shared 100.00% and 91.32% identity with USP12 homolog of Etheostoma cragini and Homo sapiens, respectively. Sequence analysis indicated that EcUSP12 contained a conserved peptidase-C19G domain (aa 40-369). qPCR analysis showed that EcUSP12 transcript was most abundant in head kidney and spleen of grouper E. coioides. The expression of EcUSP12 was significantly upregulated in grouper spleen (GS) cells in response to red-spotted grouper nervous necrosis virus (RGNNV) infection. Subcellular localization analysis showed that EcUSP12 was evenly distributed throughout the cytoplasm, and mainly co-localized with endoplasmic reticulum (ER). Interestingly, during RGNNV infection, the endogenous distribution of EcUSP12 was obviously altered, and mostly overlapped with viral coat protein (CP). Co-Immunoprecipitation (Co-IP) assay indicated that EcUSP12 interacted with viral CP. In addition, overexpression of EcUSP12 significantly inhibited the replication of RGNNV in vitro, as evidenced by the decrease in viral gene transcription and protein synthesis during infection. Consistently, knockdown of EcUSP12 by small interfering RNA (siRNA) promoted the replication of RGNNV. Furthermore, EcUSP12 overexpression also increased the transcription level of inflammatory factors and interferon-related genes, including tumor necrosis factor α (TNF-α), interleukin (IL)-1β, IL-6, IL-8, interferon regulatory factor 3 (IRF3), and IRF7. Taken together, our results demonstrated that EcUSP12, as a positive regulator of IFN signaling, interacted with viral CP to inhibit virus infection.
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Affiliation(s)
- Ya Zhang
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Liwei Huang
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaolin Gao
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Qiwei Qin
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, 519082, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, China
| | - Xiaohong Huang
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
| | - Youhua Huang
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
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12
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Sun D, Peng Y, Ge S, Fu Q. USP1 Inhibits NF-κB/NLRP3 Induced Pyroptosis through TRAF6 in Osteoblastic MC3T3-E1 Cells. JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 2022; 22:536-545. [PMID: 36458391 PMCID: PMC9716302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Deubiquitinase Ubiquitin Specific Protease 1 (USP1) is essential for bone formation, but how USP1 regulates bone formation in response to oxidative stress remains unclear. In this study, we aim to investigate the biological function of USP1 in osteoblastic MC3T3-E1 cells. METHODS Hydrogen peroxide (H2O2) as an oxidative reagent was used to trigger osteoblastic MC3T3-E1 cellular damage. Flow cytometry was used to evaluate ROS production, apoptosis, and pyroptosis. Real-time PCR and western bolt assay were used to detect the mRNA and protein levels of USP1. Moreover, coimmunoprecipitation was used to validate the relationship between USP1 and TRAF6. RESULTS We demonstrated that USP1 was significantly decreased in MC3T3-E1 cells after H2O2 treatment. Overexpressing USP1 restored H2O2-decreased alkaline phosphatase activity and reactive oxygen species production. USP1 overexpression inhibited cytokine release and NLP3 inflammasome activation, which was mediated by NF-κB. Overexpressing USP1 prevented NF-κB translocation. USP1 formed a complex with TRAF6, inhibiting TRAF6 ubiquitination. CONCLUSION USP1 exhibits protective role in MC3T3-E1 cells by suppressing NF-κB-NLRP3 mediated pyroptosis in response to H2O2. The involvement of USP1 and TRAF6 in NLRP3 inflammasome signaling suggests a future therapeutic potential to improve clinical symptoms in osteoporosis.
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Affiliation(s)
- Dengshuo Sun
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiaotong University, China
| | - Yi Peng
- Department of Orthopedics, Zhongshan Hospital, Fudan University, China
| | - Shengyang Ge
- Department of Urology, Huashan Hospital, Fudan University, China
| | - Qiang Fu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiaotong University, China,Corresponding author: Dr. Qiang Fu, Department of Orthopedics, Shanghai General Hospital, Shanghai Jiaotong University, 85 Wujin Road, Shanghai 200080, China E-mail: • ORCID: 0000-0002-5168-4604
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13
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Huang Q, Qin D, Pei D, Vermeulen M, Zhang X. UBE2O and USP7 co-regulate RECQL4 ubiquitinylation and homologous recombination-mediated DNA repair. FASEB J 2021; 36:e22112. [PMID: 34921745 DOI: 10.1096/fj.202100974rrr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 11/26/2021] [Accepted: 12/06/2021] [Indexed: 01/27/2023]
Abstract
The human RecQ DNA helicase, RECQL4, plays a pivotal role in maintaining genomic stability by regulating the DNA double-strand breaks (DSBs) repair pathway, and is, thus, involved in the regulation of aging and cancer onset. However, the regulatory mechanisms of RECQL4, especially its post-translational modifications, have not been fully illustrated. Here, we report that the E2/E3 hybrid ubiquitin-conjugating enzyme, UBE2O, physically interacts with RECQL4, and mediates the multi-monoubiquitinylation of RECQL4, subsequently leading to its proteasomal degradation. Functionally, we showed that UBE2O inhibits homologous recombination (HR)-mediated DSBs repair, and this inhibition depends on its E2 catalytic activity and RECQL4 expression. Mechanistically, we showed that UBE2O attenuates the interaction of RECQL4 and DNA damage repair proteins, the MRE11-RAD50-NBS1 complex and CtIP. Furthermore, we show that deubiquitinylase USP7 interacts with both UBE2O and RECQL4, and in that it antagonizes UBE2O-mediated regulation of RECQL4 stability and function. Collectively, we found a novel regulatory mechanism of ubiquitin-mediated regulation of RECQL4 in HR-mediated DSBs repair process.
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Affiliation(s)
- Qiuling Huang
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Center for Cell Lineage and Atlas, BioLand Laboratory, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Dajiang Qin
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Duanqing Pei
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Laboratory of Cell fate Control, School of Life Sciences, Westlake University, Hangzhou, China
| | - Michiel Vermeulen
- Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Oncode Institute, Radboud University Nijmegen, Nijmegen, the Netherlands
| | - Xiaofei Zhang
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Center for Cell Lineage and Atlas, BioLand Laboratory, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
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14
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Liao BW, Zhang HY, Du WT, Ran Y, Wang YY, Xu ZS. FAM177A1 Inhibits IL-1β-Induced Signaling by Impairing TRAF6-Ubc13 Association. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 207:3090-3097. [PMID: 34799425 DOI: 10.4049/jimmunol.2100561] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 10/12/2021] [Indexed: 11/19/2022]
Abstract
The proinflammatory cytokine IL-1β is a crucial mediator of inflammatory responses. IL-1β-induced signaling is finely regulated by various mechanisms, and its imbalance is involved in a variety of diseases. In this study, we identified FAM177A1, a protein of unknown function, as a negative regulator of IL-1β-induced signaling in human cells. Overexpression of FAM177A1 inhibited IL-1β-triggered activation of NF-κB and transcription of inflammatory genes, whereas knockdown of FAM177A1 showed the opposite effects. Mechanistically, FAM177A1 competitively bound to the E3 ubiquitin ligase TRAF6 and impaired its interaction with the E2-conjugating enzyme Ubc13; therefore, it inhibited TRAF6-mediated polyubiquitination and recruitment of downstream signaling molecules. These findings reveal a function of FAM177A1 and promote our understanding of the regulatory mechanisms of IL-1β-induced inflammatory responses.
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Affiliation(s)
- Bo-Wei Liao
- Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; and University of Chinese Academy of Sciences, Beijing, China
| | - Hong-Yan Zhang
- Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; and University of Chinese Academy of Sciences, Beijing, China
| | - Wen-Tian Du
- Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; and University of Chinese Academy of Sciences, Beijing, China
| | - Yong Ran
- Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; and University of Chinese Academy of Sciences, Beijing, China
| | - Yan-Yi Wang
- Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; and University of Chinese Academy of Sciences, Beijing, China
| | - Zhi-Sheng Xu
- Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; and University of Chinese Academy of Sciences, Beijing, China
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15
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Hou X, Zhu F, Ni Y, Chen T, Du J, Liu X, Han Y, Liu Y, Du W, Li Y, Wang X, Li D, Liang R, Li B, Shi G. USP4 is pathogenic in allergic airway inflammation by inhibiting regulatory T cell response. Life Sci 2021; 281:119720. [PMID: 34144056 DOI: 10.1016/j.lfs.2021.119720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/05/2021] [Accepted: 06/05/2021] [Indexed: 11/17/2022]
Abstract
AIMS Asthma is characterized by chronic inflammation and airway hyperresponsiveness (AHR). It is controllable, but not curable. Ubiquitin-specific peptidase 4 (USP4) has been verified as a regulator of regulatory T (Treg) cells and Th17 cells in vitro. In this study, we aim to investigate whether USP4 could serve as a therapeutic target for asthma. MAIN METHODS Age-matched USP4 wild-type and knockout mice received an intraperitoneal injection of 100 μg ovalbumin (OVA) mixed in 2 mg aluminum hydroxide in 1 × PBS on days 0, 7 and 14. On days 21 to 27, the mice were challenged with aerosolized 1% OVA in 1 × PBS for 30 min. Tissue histology, ELISA and flow cytometry were applied 24 h after the last OVA challenge. KEY FINDINGS USP4 deficiency protected mice from OVA-induced AHR and decreased the production of several inflammatory cytokines in T cells in vivo. Compared to the lung cells isolated from WT mice, Usp4-/- lung cells decreased secretion of IL-4, IL-13 and IL-17A upon stimulation in vitro. Meanwhile, the percentage of CD4+Foxp3+ Treg cells was elevated, with more CCR6+Foxp3+ Treg cells accumulating in the lungs of OVA-challenged USP4 deficient mice than in their wild-type counterparts. Treatment with the USP4 inhibitor, Vialinin A, reduced inflammatory cell infiltration in the lungs of OVA-challenged mice in vivo. SIGNIFICANCE We found USP4 deficiency contributes to attenuated airway inflammation and AHR in allergen-induced murine asthma, and Vialinin A treatment alleviates asthma pathogenesis and may serve as a promising therapeutic target for asthma.
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Affiliation(s)
- Xiaoxia Hou
- Department of Pulmonary and Critical Care Medicine, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Institute of Respiratory Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fangming Zhu
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Institute Shanghai Key Laboratory of Bio-Energy Crops, School of Life Science, Shanghai University, Shanghai, China
| | - Yingmeng Ni
- Department of Pulmonary and Critical Care Medicine, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Institute of Respiratory Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tiantian Chen
- Department of Pulmonary and Critical Care Medicine, Tong Ren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Juan Du
- Department of Pulmonary and Critical Care Medicine, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Institute of Respiratory Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinnan Liu
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yichao Han
- Department of Thoracic Surgery, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yahui Liu
- Department of Pulmonary and Critical Care Medicine, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Institute of Respiratory Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Du
- Department of Pulmonary and Critical Care Medicine, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Institute of Respiratory Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yangyang Li
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoxia Wang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Dan Li
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Rui Liang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Bin Li
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Guochao Shi
- Department of Pulmonary and Critical Care Medicine, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Institute of Respiratory Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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16
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The Multifaceted Roles of USP15 in Signal Transduction. Int J Mol Sci 2021; 22:ijms22094728. [PMID: 33946990 PMCID: PMC8125482 DOI: 10.3390/ijms22094728] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/26/2021] [Accepted: 04/26/2021] [Indexed: 02/07/2023] Open
Abstract
Ubiquitination and deubiquitination are protein post-translational modification processes that have been recognized as crucial mediators of many complex cellular networks, including maintaining ubiquitin homeostasis, controlling protein stability, and regulating several signaling pathways. Therefore, some of the enzymes involved in ubiquitination and deubiquitination, particularly E3 ligases and deubiquitinases, have attracted attention for drug discovery. Here, we review recent findings on USP15, one of the deubiquitinases, which regulates diverse signaling pathways by deubiquitinating vital target proteins. Even though several basic previous studies have uncovered the versatile roles of USP15 in different signaling networks, those have not yet been systematically and specifically reviewed, which can provide important information about possible disease markers and clinical applications. This review will provide a comprehensive overview of our current understanding of the regulatory mechanisms of USP15 on different signaling pathways for which dynamic reverse ubiquitination is a key regulator.
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17
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Hu B, Zhang D, Zhao K, Wang Y, Pei L, Fu Q, Ma X. Spotlight on USP4: Structure, Function, and Regulation. Front Cell Dev Biol 2021; 9:595159. [PMID: 33681193 PMCID: PMC7935551 DOI: 10.3389/fcell.2021.595159] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 01/15/2021] [Indexed: 02/05/2023] Open
Abstract
The deubiquitinating enzyme (DUB)–mediated cleavage of ubiquitin plays a critical role in balancing protein synthesis and degradation. Ubiquitin-specific protease 4 (USP4), a member of the largest subfamily of cysteine protease DUBs, removes monoubiquitinated and polyubiquitinated chains from its target proteins. USP4 contains a DUSP (domain in USP)–UBL (ubiquitin-like) domain and a UBL-insert catalytic domain, sharing a common domain organization with its paralogs USP11 and USP15. USP4 plays a critical role in multiple cellular and biological processes and is tightly regulated under normal physiological conditions. When its expression or activity is aberrant, USP4 is implicated in the progression of a wide range of pathologies, especially cancers. In this review, we comprehensively summarize the current knowledge of USP4 structure, biological functions, pathological roles, and cellular regulation, highlighting the importance of exploring effective therapeutic interventions to target USP4.
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Affiliation(s)
- Binbin Hu
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Dingyue Zhang
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Kejia Zhao
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Wang
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Lijiao Pei
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Qianmei Fu
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xuelei Ma
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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18
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Zong Z, Zhang Z, Wu L, Zhang L, Zhou F. The Functional Deubiquitinating Enzymes in Control of Innate Antiviral Immunity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2002484. [PMID: 33511009 PMCID: PMC7816709 DOI: 10.1002/advs.202002484] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/09/2020] [Indexed: 05/11/2023]
Abstract
Innate antiviral immunity is the first line of host defense against invading viral pathogens. Immunity activation primarily relies on the recognition of pathogen-associated molecular patterns (PAMPs) by pattern recognition receptors (PRRs). Viral proteins or nucleic acids mainly engage three classes of PRRs: Toll-like receptors (TLRs), retinoic acid-inducible gene I (RIG-I)-like receptors (RLRs), and DNA sensor cyclic GMP-AMP (cGAMP) synthase (cGAS). These receptors initiate a series of signaling cascades that lead to the production of proinflammatory cytokines and type I interferon (IFN-I) in response to viral infection. This system requires precise regulation to avoid aberrant activation. Emerging evidence has unveiled the crucial roles that the ubiquitin system, especially deubiquitinating enzymes (DUBs), play in controlling immune responses. In this review, an overview of the most current findings on the function of DUBs in the innate antiviral immune pathways is provided. Insights into the role of viral DUBs in counteracting host immune responses are also provided. Furthermore, the prospects and challenges of utilizing DUBs as therapeutic targets for infectious diseases are discussed.
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Affiliation(s)
- Zhi Zong
- Department of Hepatobiliary and Pancreatic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhou310003P. R. China
- MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058P. R. China
| | - Zhengkui Zhang
- Institute of Biology and Medical ScienceSoochow UniversitySuzhou215123P. R. China
| | - Liming Wu
- Department of Hepatobiliary and Pancreatic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhou310003P. R. China
| | - Long Zhang
- Department of Hepatobiliary and Pancreatic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhou310003P. R. China
- MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058P. R. China
| | - Fangfang Zhou
- Institute of Biology and Medical ScienceSoochow UniversitySuzhou215123P. R. China
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19
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Kumar V. Toll-like receptors in sepsis-associated cytokine storm and their endogenous negative regulators as future immunomodulatory targets. Int Immunopharmacol 2020; 89:107087. [PMID: 33075714 PMCID: PMC7550173 DOI: 10.1016/j.intimp.2020.107087] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 10/04/2020] [Accepted: 10/08/2020] [Indexed: 12/15/2022]
Abstract
Sepsis infects more than 48.9 million people world-wide, with 19.7 million deaths. Cytokine storm plays a significant role in sepsis, along with severe COVID-19. TLR signaling pathways plays a crucial role in generating the cytokine storm. Endogenous negative regulators of TLR signaling are crucial to regulate cytokine storm.
Cytokine storm generates during various systemic acute infections, including sepsis and current pandemic called COVID-19 (severe) causing devastating inflammatory conditions, which include multi-organ failure or multi-organ dysfunction syndrome (MODS) and death of the patient. Toll-like receptors (TLRs) are one of the major pattern recognition receptors (PRRs) expressed by immune cells as well as non-immune cells, including neurons, which play a crucial role in generating cytokine storm. They recognize microbial-associated molecular patterns (MAMPs, expressed by pathogens) and damage or death-associate molecular patterns (DAMPs; released and/expressed by damaged/killed host cells). Upon recognition of MAMPs and DAMPs, TLRs activate downstream signaling pathways releasing several pro-inflammatory mediators [cytokines, chemokines, interferons, and reactive oxygen and nitrogen species (ROS or RNS)], which cause acute inflammation meant to control the pathogen and repair the damage. Induction of an exaggerated response due to genetic makeup of the host and/or persistence of the pathogen due to its evasion mechanisms may lead to severe systemic inflammatory condition called sepsis in response to the generation of cytokine storm and organ dysfunction. The activation of TLR-induced inflammatory response is hardwired to the induction of several negative feedback mechanisms that come into play to conclude the response and maintain immune homeostasis. This state-of-the-art review describes the importance of TLR signaling in the onset of the sepsis-associated cytokine storm and discusses various host-derived endogenous negative regulators of TLR signaling pathways. The subject is very important as there is a vast array of genes and processes implicated in these negative feedback mechanisms. These molecules and mechanisms can be targeted for developing novel therapeutic drugs for cytokine storm-associated diseases, including sepsis, severe COVID-19, and other inflammatory diseases, where TLR-signaling plays a significant role.
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Affiliation(s)
- V Kumar
- Children Health Clinical Unit, Faculty of Medicine, Mater Research, University of Queensland, ST Lucia, Brisbane, Queensland 4078, Australia; School of Biomedical Sciences, Faculty of Medicine, University of Queensland, ST Lucia, Brisbane, Queensland 4078, Australia.
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Wang Y, Zhou L, Lu J, Jiang B, Liu C, Guo J. USP4 function and multifaceted roles in cancer: a possible and potential therapeutic target. Cancer Cell Int 2020; 20:298. [PMID: 32669974 PMCID: PMC7350758 DOI: 10.1186/s12935-020-01391-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 06/30/2020] [Indexed: 12/15/2022] Open
Abstract
Cancer remains one of the major culprits causing disease-related deaths and leads to a high morbidity and similar mortality. Insidious onset, difficult early detection and a lack of broad-spectrum and effective multi-cancer therapeutic targets have limited the prolongation of cancer patients’ survival for decades. Therefore, a versatile therapeutic target which is involved in various cancer-related signaling pathways and different cancers may be more effective for cancer targeted therapy. USP4, one of the DUBs members which participates in deubiquitination, an inverse process of ubiquitination, can regulate various classical cancer-related signaling pathways, and thereby plays a vital role in some pathological and physiological processes including tumor initiation and progression. Recently, USP4 has been found to exert versatile influences on cells proliferation, migration and invasion, also apoptosis of various tumors. Moreover, USP4 can also act as a prognostic biomarker in several cancers. This review will give a comprehensive introduction of USP4 about its regulatory mechanisms, related signaling pathways, pathophysiological functions and the roles in various cancers which may help us better understand its biological functions and improve future studies to construct suitable USP4-targeted cancer therapy system.
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Affiliation(s)
- Yizhi Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Li Zhou
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Jun Lu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Bolun Jiang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Chengxi Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Junchao Guo
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
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21
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Nielsen CP, MacGurn JA. Coupling Conjugation and Deconjugation Activities to Achieve Cellular Ubiquitin Dynamics. Trends Biochem Sci 2020; 45:427-439. [PMID: 32311336 DOI: 10.1016/j.tibs.2020.01.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 12/19/2022]
Abstract
In eukaryotic cells, proteome remodeling is mediated by the ubiquitin-proteasome system, which regulates protein degradation, trafficking, and signaling events in the cell. Interplay between the cellular proteome and ubiquitin is complex and dynamic and many regulatory features that support this system have only recently come into focus. An unexpected recurring feature in this system is the physical interaction between E3 ubiquitin ligases and deubiquitylases (DUBs). Recent studies have reported on the regulatory significance of DUB-E3 interactions and it is becoming clear that they play important but complicated roles in the regulation of diverse cellular processes. Here, we summarize the current understanding of interactions between ubiquitin conjugation and deconjugation machineries and we examine the regulatory logic of these enigmatic complexes.
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Affiliation(s)
- Casey P Nielsen
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA
| | - Jason A MacGurn
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA.
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Lai CY, Yeh DW, Lu CH, Liu YL, Chuang YC, Ruan JW, Kao CY, Huang LR, Chuang TH. Epigenetic Silencing of Ubiquitin Specific Protease 4 by Snail1 Contributes to Macrophage-Dependent Inflammation and Therapeutic Resistance in Lung Cancer. Cancers (Basel) 2020; 12:E148. [PMID: 31936290 PMCID: PMC7016945 DOI: 10.3390/cancers12010148] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/28/2019] [Accepted: 01/06/2020] [Indexed: 02/07/2023] Open
Abstract
There is a positive feedback loop driving tumorigenesis and tumor growth through coordinated regulation of epigenetics, inflammation, and stemness. Nevertheless, the molecular mechanism linking these processes is not well understood. In this study, we analyzed the correlation of de-ubiquitinases (DUBs) expression with survival data from the OncoLnc database. Among the DUBs analyzed, ubiquitin specific protease 4 (USP4) had the lowest negative Cox coefficient. Low expression of USP4 was associated with poor survival among lung cancer patients and was inversely correlated with expression of stemness and inflammation markers. Expression of USP4 were reduced at more advanced stages of lung cancer. Mechanistically, expression of USP4 was downregulated in snail1-overexpressing and stemness-enriched lung cancer cells. Snail1 was induced in lung cancer cells by interaction with macrophages, and epigenetically suppressed USP4 expression by promoter methylation. Stable knockdown of USP4 in lung cancer cells enhanced inflammatory responses, stemness properties, chemotherapy resistance, and the expression of molecules allowing escape from immunosurveillance. Further, mice injected with USP4 knockdown lung cancer cells demonstrated enhanced tumorigenesis and tumor growth. These results reveal that the Snail1-mediated suppression of USP4 is a potential mechanism to orchestrate epigenetic regulation, inflammation and stemness for macrophage-promoted tumor progression.
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Affiliation(s)
- Chao-Yang Lai
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan; (C.-Y.L.); (D.-W.Y.); (C.-H.L.); (Y.-L.L.); (Y.-C.C.); (J.-W.R.); (C.-Y.K.)
| | - Da-Wei Yeh
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan; (C.-Y.L.); (D.-W.Y.); (C.-H.L.); (Y.-L.L.); (Y.-C.C.); (J.-W.R.); (C.-Y.K.)
| | - Chih-Hao Lu
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan; (C.-Y.L.); (D.-W.Y.); (C.-H.L.); (Y.-L.L.); (Y.-C.C.); (J.-W.R.); (C.-Y.K.)
| | - Yi-Ling Liu
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan; (C.-Y.L.); (D.-W.Y.); (C.-H.L.); (Y.-L.L.); (Y.-C.C.); (J.-W.R.); (C.-Y.K.)
| | - Yu-Chen Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan; (C.-Y.L.); (D.-W.Y.); (C.-H.L.); (Y.-L.L.); (Y.-C.C.); (J.-W.R.); (C.-Y.K.)
| | - Jhen-Wei Ruan
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan; (C.-Y.L.); (D.-W.Y.); (C.-H.L.); (Y.-L.L.); (Y.-C.C.); (J.-W.R.); (C.-Y.K.)
| | - Cheng-Yuan Kao
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan; (C.-Y.L.); (D.-W.Y.); (C.-H.L.); (Y.-L.L.); (Y.-C.C.); (J.-W.R.); (C.-Y.K.)
| | - Li-Rung Huang
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan;
| | - Tsung-Hsien Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan; (C.-Y.L.); (D.-W.Y.); (C.-H.L.); (Y.-L.L.); (Y.-C.C.); (J.-W.R.); (C.-Y.K.)
- Program in Environmental and Occupational Medicine, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
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Soltani N, Marandi SM, Kazemi M, Esmaeil N. The Exercise Training Modulatory Effects on the Obesity-Induced Immunometabolic Dysfunctions. Diabetes Metab Syndr Obes 2020; 13:785-810. [PMID: 32256095 PMCID: PMC7090203 DOI: 10.2147/dmso.s234992] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/18/2020] [Indexed: 12/13/2022] Open
Abstract
Reduced physical activity rate in people's lifestyle is a global concern associated with the prevalence of health disorders such as obesity and metabolic disturbance. Ample evidence has indicated a critical role of the immune system in the aggravation of obesity. The type, duration, and production of adipose tissue-released mediators may change subsequent inactive lifestyle-induced obesity, leading to the chronic systematic inflammation and monocyte/macrophage (MON/MФ) phenotype polarization. Preliminary adipose tissue expansion can be inhibited by changing the lifestyle. In this context, exercise training is widely recommended due to a definite improvement of energy balance and the potential impacts on the inflammatory signaling cascades. How exercise training affects the immune system has not yet been fully elucidated, because its anti-inflammatory, pro-inflammatory, or even immunosuppressive impacts have been indicated in the literature. A thorough understanding of the mechanisms triggered by exercise can suggest a new approach to combat meta-inflammation-induced metabolic diseases. In this review, we summarized the obesity-induced inflammatory pathways, the roles of MON/MФ polarization in adipose tissue and systemic inflammation, and the underlying inflammatory mechanisms triggered by exercise during obesity.
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Affiliation(s)
- Nakisa Soltani
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan, Iran
| | - Sayed Mohammad Marandi
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan, Iran
- Sayed Mohammad Marandi Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan, IranTel +983137932358Fax +983136687572 Email
| | - Mohammad Kazemi
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nafiseh Esmaeil
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Correspondence: Nafiseh Esmaeil Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan81744-176, IranTel +98 31 37929097Fax +98 3113 7929031 Email
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Wang A, Zhu F, Liang R, Li D, Li B. Regulation of T cell differentiation and function by ubiquitin-specific proteases. Cell Immunol 2019; 340:103922. [PMID: 31078284 DOI: 10.1016/j.cellimm.2019.103922] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 05/02/2019] [Indexed: 12/13/2022]
Abstract
T cells play critical roles in immune responses to pathogens, autoimmunity, and antitumor immunity. During the past few decades, increasing numbers of studies have demonstrated the significance of protein ubiquitination in T cell-mediated immunity. Several E3 ubiquitin ligases and deubiquitinases (DUBs) have been identified as either positive or negative regulators of T cell development and function. In this review, we mainly focus on the roles of DUBs (especially ubiquitin-specific proteases (USPs)) in modulating T cell differentiation and function, as well as the molecular mechanisms. Understanding how T cell development and function is regulated by ubiquitination and deubiquitination will provide novel strategies for treating infection, autoimmune diseases, and cancer.
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Affiliation(s)
- Aiting Wang
- Key Laboratory of Molecular Virology and Immunology, CAS Center for Excellence in Molecular Cell Science, Unit of Molecular Immunology, Institut Pasteur of Shanghai, University of Chinese Academy of Sciences, Shanghai 200031, China; Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Fangming Zhu
- Key Laboratory of Molecular Virology and Immunology, CAS Center for Excellence in Molecular Cell Science, Unit of Molecular Immunology, Institut Pasteur of Shanghai, University of Chinese Academy of Sciences, Shanghai 200031, China; Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China; Shanghai Key Laboratory of Bio-energy Crops, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Rui Liang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Dan Li
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Bin Li
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China.
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25
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USP4 deficiency exacerbates hepatic ischaemia/reperfusion injury via TAK1 signalling. Clin Sci (Lond) 2019; 133:335-349. [PMID: 30622220 DOI: 10.1042/cs20180959] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 02/06/2023]
Abstract
Ubiquitin-specific peptidase 4 (USP4) protein is a type of deubiquitination enzyme that is correlated with many important biological processes. However, the function of USP4 in hepatic ischaemia/reperfusion (I/R) injury remains unknown. The aim of the present study was to explore the role of USP4 in hepatic I/R injury. USP4 gene knockout mice and primary hepatocytes were used to construct hepatic I/R models. The effect of USP4 on hepatic I/R injury was examined via pathological and molecular analyses. Our results indicated that USP4 was significantly up-regulated in liver of mice subjected to hepatic I/R injury. USP4 knockout mice exhibited exacerbated hepatic I/R injury, as evidenced by enhanced liver inflammation via the nuclear factor κB (NF-κB) signalling pathway and increased hepatocyte apoptosis. Additionally, USP4 overexpression inhibited hepatocyte inflammation and apoptosis on hepatic I/R stimulation. Mechanistically, our study demonstrates that USP4 deficiency exerts its detrimental effects on hepatic I/R injury by inducing activation of the transforming growth factor β-activated kinase 1 (TAK1)/JNK signalling pathways. TAK1 was required for USP4 function in hepatic I/R injury as TAK1 inhibition abolished USP4 function in vitro In conclusion, our study demonstrates that USP4 deficiency plays a detrimental role in hepatic I/R injury by promoting activation of the TAK1/JNK signalling pathways. Modulation of this axis may be a novel strategy to alleviate the pathological process of hepatic I/R injury.
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26
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Shi JH, Sun SC. Tumor Necrosis Factor Receptor-Associated Factor Regulation of Nuclear Factor κB and Mitogen-Activated Protein Kinase Pathways. Front Immunol 2018; 9:1849. [PMID: 30140268 PMCID: PMC6094638 DOI: 10.3389/fimmu.2018.01849] [Citation(s) in RCA: 214] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 07/26/2018] [Indexed: 01/09/2023] Open
Abstract
Tumor necrosis factor receptor (TNFR)-associated factors (TRAFs) are a family of structurally related proteins that transduces signals from members of TNFR superfamily and various other immune receptors. Major downstream signaling events mediated by the TRAF molecules include activation of the transcription factor nuclear factor κB (NF-κB) and the mitogen-activated protein kinases (MAPKs). In addition, some TRAF family members, particularly TRAF2 and TRAF3, serve as negative regulators of specific signaling pathways, such as the noncanonical NF-κB and proinflammatory toll-like receptor pathways. Thus, TRAFs possess important and complex signaling functions in the immune system and play an important role in regulating immune and inflammatory responses. This review will focus on the role of TRAF proteins in the regulation of NF-κB and MAPK signaling pathways.
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Affiliation(s)
- Jian-Hong Shi
- Central Laboratory, Affiliated Hospital of Hebei University, Baoding, China
| | - Shao-Cong Sun
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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27
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Yao R, Pu J, Fan R, Zhu W, Ding X, Shen X, Zhang T. Ubiquitin-specific protease 4 improves the prognosis of the patients in esophageal cancer. Cancer Biomark 2018; 20:317-323. [PMID: 28946564 DOI: 10.3233/cbm-170308] [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: 01/14/2023]
Abstract
Our study mainly investigated ubiquitin-specific protease 4 (USP4) expression in pathogenesis of esophageal cancer. The data showed significantly increased expression of USP4 in cancer tissues compared to that in para-carcinoma tissues (68.38% ± 25.60% vs 13.04% ± 9.95%, P= 0.000) and positive correlation between USP4 and pathology grade (r= 0.249, P= 0.014), although survival analysis revealed that USP4 expression was positively associated with the prognosis (32.4% vs 10.9%, P= 0.043). Grouped analysis revealed that the prognosis of patients with high USP4 expression were significantly better only in the small tumor subgroup (diameter ⩽ 5 cm) (52.6% VS 8.6%, P= 0.001) and the early stage subgroup (stages 1 and 2) (60.0% VS 16.7%, P= 0.006). Moreover, in the subgroup of clinical stages 1 and 2 with tumor diameter ⩽ 5 cm, high USP4 expression prolonged the survival time of esophageal cancer patients more significantly (75.5% VS 5.9%, P= 0.000). Based on these results, we speculated that it was possible to significantly improve the prognosis of patients with low USP4 expression by targeted therapy in early esophageal cancer. Taken together, our study uncovered a previously unknown function of USP4 in esophageal cancer and more investigations would be carried out to further study its regulation gene network and molecular biological mechanism in esophageal cancer.
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Affiliation(s)
- Rong Yao
- Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China.,Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Juan Pu
- Department of Radiation Oncology, Lianshui People's Hospital, Huaian 223300, Jiangsu, China.,Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Ruihua Fan
- Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Weiguo Zhu
- Departments of Radiation Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Xiaorong Ding
- Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Xiaoying Shen
- Shanghai Outdo Biotech Co., Ltd., Shanghai 201399, China
| | - Tiecheng Zhang
- Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
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Yang FM, Zuo Y, Zhou W, Xia C, Hahm B, Sullivan M, Cheng J, Chang HM, Yeh ET. sNASP inhibits TLR signaling to regulate immune response in sepsis. J Clin Invest 2018; 128:2459-2472. [PMID: 29733298 PMCID: PMC5983344 DOI: 10.1172/jci95720] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 03/16/2018] [Indexed: 01/10/2023] Open
Abstract
Many Toll-like receptors (TLRs) signal through TNF receptor-associated factor 6 (TRAF6) to activate innate immune responses. Here, we show that somatic nuclear autoantigenic sperm protein (sNASP) binds to TRAF6 to prevent TRAF6 autoubiquitination in unstimulated macrophages. Following LPS stimulation, a complex consisting of sNASP, TRAF6, IRAK4, and casein kinase 2 (CK2) is formed. CK2 phosphorylates sNASP at serine 158, allowing sNASP to dissociate from TRAF6. Free TRAF6 is then autoubiquitinated, followed by activation of downstream signaling pathways. In sNasp S158A knockin (S158A-KI) mice, LPS-treated macrophages could not phosphorylate sNASP, which remained bound to TRAF6. S158A-KI mice were more susceptible to sepsis due to a marked reduction in IL-1β, TNF-α, and IFN-γ production accompanied by an inability to clear bacteria and recruit leukocytes. Furthermore, phosphorylation-regulated release of sNASP from TRAF6 is observed following activation of TLR-1, -2, -4, -5, and -6. Thus, sNASP is a negative regulator of TLR signaling to modulate the innate immune response.
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Affiliation(s)
- Feng-Ming Yang
- Center for Precision Medicine, Department of Medicine, University of Missouri, Columbia, Missouri, USA
| | - Yong Zuo
- Department of Biochemistry and Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes & Related Genes, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Zhou
- Department of Biochemistry and Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes & Related Genes, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuan Xia
- Departments of Surgery and Molecular Microbiology and Immunology, University of Missouri, Columbia, Missouri, USA
| | - Bumsuk Hahm
- Departments of Surgery and Molecular Microbiology and Immunology, University of Missouri, Columbia, Missouri, USA
| | - Mark Sullivan
- Department of Microbiology and Immunology, University of Rochester, School of Medicine and Dentistry, Rochester, New York, USA
| | - Jinke Cheng
- Department of Biochemistry and Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes & Related Genes, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui-Ming Chang
- Center for Precision Medicine, Department of Medicine, University of Missouri, Columbia, Missouri, USA
| | - Edward T.H. Yeh
- Center for Precision Medicine, Department of Medicine, University of Missouri, Columbia, Missouri, USA
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Rebl A, Goldammer T. Under control: The innate immunity of fish from the inhibitors' perspective. FISH & SHELLFISH IMMUNOLOGY 2018; 77:328-349. [PMID: 29631025 DOI: 10.1016/j.fsi.2018.04.016] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 06/08/2023]
Abstract
The innate immune response involves a concerted network of induced gene products, preformed immune effectors, biochemical signalling cascades and specialised cells. However, the multifaceted activation of these defensive measures can derail or overshoot and, if left unchecked, overwhelm the host. A plenty of regulatory devices therefore mediate the fragile equilibrium between pathogen defence and pathophysiological manifestations. Over the past decade in particular, an almost complete set of teleostean sequences orthologous to mammalian immunoregulatory factors has been identified in various fish species, which prove the remarkable conservation of innate immune-control concepts among vertebrates. This review will present the current knowledge on more than 50 teleostean regulatory factors (plus additional fish-specific paralogs) that are of paramount importance for controlling the clotting cascade, the complement system, pattern-recognition pathways and cytokine-signalling networks. A special focus lies on those immunoregulatory features that have emerged as potential biomarker genes in transcriptome-wide research studies. Moreover, we report on the latest progress in elucidating control elements that act directly with immune-gene-encoding nucleic acids, such as transcription factors, hormone receptors and micro- and long noncoding RNAs. Investigations into the function of teleostean inhibitory factors are still mainly based on gene-expression profiling or overexpression studies. However, in support of structural and in-vitro analyses, evidence from in-vivo trials is also available and revealed many biochemical details on piscine immune regulation. The presence of multiple gene copies in fish adds a degree of complexity, as it is so far hardly understood if they might play distinct roles during inflammation. The present review addresses this and other open questions that should be tackled by fish immunologists in future.
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Affiliation(s)
- Alexander Rebl
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Fish Genetics Unit, Dummerstorf, Germany.
| | - Tom Goldammer
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Fish Genetics Unit, Dummerstorf, Germany
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30
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Courtois G, Fauvarque MO. The Many Roles of Ubiquitin in NF-κB Signaling. Biomedicines 2018; 6:E43. [PMID: 29642643 PMCID: PMC6027159 DOI: 10.3390/biomedicines6020043] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 03/31/2018] [Accepted: 04/02/2018] [Indexed: 12/24/2022] Open
Abstract
The nuclear factor κB (NF-κB) signaling pathway ubiquitously controls cell growth and survival in basic conditions as well as rapid resetting of cellular functions following environment changes or pathogenic insults. Moreover, its deregulation is frequently observed during cell transformation, chronic inflammation or autoimmunity. Understanding how it is properly regulated therefore is a prerequisite to managing these adverse situations. Over the last years evidence has accumulated showing that ubiquitination is a key process in NF-κB activation and its resolution. Here, we examine the various functions of ubiquitin in NF-κB signaling and more specifically, how it controls signal transduction at the molecular level and impacts in vivo on NF-κB regulated cellular processes.
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31
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RSK2 is required for TRAF6 phosphorylation-mediated colon inflammation. Oncogene 2018; 37:3501-3513. [PMID: 29563609 PMCID: PMC6023753 DOI: 10.1038/s41388-018-0167-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 10/09/2017] [Accepted: 12/28/2017] [Indexed: 12/19/2022]
Abstract
Inflammation is a complex biological host reaction to tissue damage, infection and trauma. Extensive study of the inflammatory response has led to the identification of several protein kinases that are essential for signaling and could be potential therapeutic targets. The RSK family of kinases has multiple cellular functions. In our study, we found that RSK2 is a mediator for inflammation signaling and interacts with TRAF6. In vitro kinase assay results indicated that RSK2 strongly phosphorylates TRAF6 at serines 46, 47 and 48. Ectopic overexpression of TRAF6 or knocking down RSK2 expression confirmed that RSK2 is a positive regulator of TRAF6 K63 ubiquitination. TRAF6 is also required for RSK2 ubiquitination. TRAF6 bridges the TNF receptor superfamily and intracellular signaling for the induction of proinflammatory cytokines. We developed a colon inflammation model using RSK2 wild type (WT) and knockout (KO) mice. As expected, F4/80 and CD3 infiltration were significantly upregulated in WT mice compared to RSK2 KO mice. Furthermore, inflammation signaling, including Ikkα/β, p38 and JNKs, was dramatically upregulated in WT mice. Colon tissue immunoprecipitation results further confirmed that TRAF6 K63 ubiquitination was lower in RSK2 KO mice. Overall, these results indicate that phosphorylation of TRAF6 (S46, 47, 48) by RSK2 is required for TRAF6 K63 ubiquitination and inflammation signaling.
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Abstract
More than a decade after a Nobel Prize was awarded for the discovery of the ubiquitin-proteasome system and clinical approval of proteasome and ubiquitin E3 ligase inhibitors, first-generation deubiquitylating enzyme (DUB) inhibitors are now approaching clinical trials. However, although our knowledge of the physiological and pathophysiological roles of DUBs has evolved tremendously, the clinical development of selective DUB inhibitors has been challenging. In this Review, we discuss these issues and highlight recent advances in our understanding of DUB enzymology and biology as well as technological improvements that have contributed to the current interest in DUBs as therapeutic targets in diseases ranging from oncology to neurodegeneration.
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Affiliation(s)
- Jeanine A. Harrigan
- Mission Therapeutics Ltd, Moneta, Babraham Research Campus, Cambridge, CB22 3AT UK
| | - Xavier Jacq
- Mission Therapeutics Ltd, Moneta, Babraham Research Campus, Cambridge, CB22 3AT UK
| | - Niall M. Martin
- Mission Therapeutics Ltd, Moneta, Babraham Research Campus, Cambridge, CB22 3AT UK
- Present Address: and Department of Biochemistry, The Wellcome Trust and Cancer Research UK Gurdon Institute, Tennis Court Road, University of Cambridge, Cambridge, CB2 1QN UK
- Present address: Artios Pharmaceuticals Ltd, Maia, Babraham Research Campus, Cambridge CB22 3AT, UK,
| | - Stephen P. Jackson
- Mission Therapeutics Ltd, Moneta, Babraham Research Campus, Cambridge, CB22 3AT UK
- Present Address: and Department of Biochemistry, The Wellcome Trust and Cancer Research UK Gurdon Institute, Tennis Court Road, University of Cambridge, Cambridge, CB2 1QN UK
- Present address: Artios Pharmaceuticals Ltd, Maia, Babraham Research Campus, Cambridge CB22 3AT, UK,
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The LPS-inducible lncRNA Mirt2 is a negative regulator of inflammation. Nat Commun 2017; 8:2049. [PMID: 29230038 PMCID: PMC5725456 DOI: 10.1038/s41467-017-02229-1] [Citation(s) in RCA: 200] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 11/08/2017] [Indexed: 12/29/2022] Open
Abstract
Toll-like receptors (TLRs) are a family of pattern recognition receptors (PRR) with a crucial function in innate immune responses. Activation of TLR4 signaling at the plasma membrane by lipopolysaccharide (LPS) stimulates proinflammatory signaling pathways dependent on the E3 ubiquitin ligase TRAF6. Here we show the LPS-induced long non-coding RNA (lncRNA) Mirt2 functions as a checkpoint to prevent aberrant activation of inflammation, and is a potential regulator of macrophage polarization. Mirt2 associates with, and attenuates Lys63 (K63)-linked ubiquitination of, TRAF6, thus inhibiting activation of NF-κB and MAPK pathways and limiting production of proinflammatory cytokines. Adenovirus mediated gene transfer of Mirt2 protects mice from endotoxemia induced fatality and multi-organ dysfunction. These findings identify lncRNA Mirt2 as a negative feedback regulator of excessive inflammation.
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The deubiquitinating enzymes USP4 and USP17 target hyaluronan synthase 2 and differentially affect its function. Oncogenesis 2017; 6:e348. [PMID: 28604766 PMCID: PMC5519194 DOI: 10.1038/oncsis.2017.45] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 04/01/2017] [Accepted: 04/28/2017] [Indexed: 12/13/2022] Open
Abstract
The levels of hyaluronan, a ubiquitous glycosaminoglycan prominent in the extracellular matrix, is balanced through the actions of hyaluronan-synthesizing enzymes (HAS1, 2 and 3) and degrading hyaluronidases (Hyal 1, 2, 3 and PH20). Hyaluronan accumulates in rapidly remodeling tissues, such as breast cancer, due to deregulated expression of the HAS2 gene and/or alterations of HAS2 activity. The activity of HAS2 is regulated by post-translational modifications, including ubiquitination. In order to identify deubiquitinating enzymes (DUBs) that are involved in de-ubiquitination of HAS2, a complementary (cDNA) library of 69 Flag-HA-tagged human DUBs cloned into retroviral vectors was screened in human embryonic kidney (HEK) 293T cells for their ability to de-ubiquitinate myc-tagged HAS2. Several DUBs were found to decrease the ubiquitination of 6myc-HAS2, among which, the most effective were USP17 and USP4. USP17 efficiently removed polyubiquitination, whereas USP4 preferentially removed monoubiquitination of 6myc-HAS2. Co-immunoprecipitation studies revealed interactions between HAS2 and USP17, as well as between HAS2 and USP4, in membrane preparations of HEK293T cells. USP17 significantly stabilized 6myc-HAS2 protein levels, whereas USP4 did not. The silencing of USP17 led to decreased hyaluronan production, whereas the suppression of USP4 increased hyaluronan synthesis. Importantly, high levels of USP17 and HAS2 were detected in a panel of cancer cell lines compared to normal cells, and immunohistochemical stainings revealed higher expression of USP17 and HAS2 in tissues of lung cancer patients compared to normal tissue. In conclusion, USP17 and USP4 differently affect HAS2 ubiquitination, and the stability and function of HAS2.
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Li M, Qi Y, Wei J, Lu L, Zhao X, Zhou L. N6-Isopentenyladenosine promoted HeLa cell apoptosis through inhibitions of AKT and transforming growth factor β-activated kinase 1 activation. Tumour Biol 2017; 39:1010428317695966. [PMID: 28345459 DOI: 10.1177/1010428317695966] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
N6-Isopentenyladenosine, a member of the family of plant hormones, possesses anti-cancer activities on a number of cancer cell lines. However, its mode of action in cervical cancer cell remains poorly understood. Our computational docking studies showed that N6-Isopentenyladenosine could bind with the really interesting new gene domain of tumor necrosis factor receptor-associated factor 6, which is an ubiquitination E3 ligase. Tumor necrosis factor receptor-associated factor 6-mediated ubiquitination is known to activate both protein kinase B (also known as AKT) and transforming growth factor β-activated kinase 1, and the really interesting new gene domain comprises the core of the ubiquitin ligase catalytic domain. First, we evaluated the effects of iPA on cervical cancer cell line HeLa using MTT and flow cytometry. Second, we examined the effects of iPA on activation of tumor necrosis factor receptor-associated factor 6-mediated downstream targets using western blot or immunoprecipitation. iPA could reduce HeLa cell proliferation through apoptosis, and such anti-cancer activity is associated with inhibitions of both AKT and transforming growth factor β-activated kinase 1 signaling pathways. In addition, suppression of the anti-apoptotic protein Bcl-2 and elevation of the pro-apoptotic protein Bax were also observed. Anti-proliferation properties of iPA are likely due to its binding at the really interesting new gene domain of tumor necrosis factor receptor-associated factor 6 and loss of AKT and transforming growth factor β-activated kinase 1 activities as a result of functional modulations of tumor necrosis factor receptor-associated factor 6. These results support the emerging notion that tumor necrosis factor receptor-associated factor 6 could serve as a viable target for developing new cancer therapeutics.
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Affiliation(s)
- Miao Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Yonghao Qi
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Jing Wei
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Lulu Lu
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Xuan Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Lijun Zhou
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
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Porter LM, Radulović ŽM, Mulenga A. A repertoire of protease inhibitor families in Amblyomma americanum and other tick species: inter-species comparative analyses. Parasit Vectors 2017; 10:152. [PMID: 28330502 PMCID: PMC5361777 DOI: 10.1186/s13071-017-2080-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Accepted: 03/06/2017] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Protease inhibitors (PIs) are important regulators of physiology and represent anti-parasitic druggable and vaccine targets. We conducted bioinformatic analyses of genome and transcriptome data to determine the protease inhibitor (PI) repertoire in Amblyomma americanum and in 25 other ixodid tick species. For A. americanum, we compared the PI repertoires in fed and unfed, male and female A. americanum ticks. We also analyzed PI repertoires of female 48, 96 and 120 h-fed midgut (MG) and salivary gland (SG) tissues. RESULTS We found 1,595 putative non-redundant PI sequences across 26 ixodid tick species. Ticks express PIs from at least 18 different families: I1, I2, I4, I8, I21, I25, I29, I31, I32, I35, I39, I43, I51, I53, I63, I68, I72 and I74 (MEROPS). The largest PI families were I2, I4 and I8 and lowest in I21, I31, I32, I35 and I68. The majority (75%) of tick PIs putatively inhibit serine proteases, with ~11 and 9% putatively regulating cysteine or metalloprotease-mediated pathways, respectively, and ~4% putatively regulating multiple/mixed protease types. In A. americanum, we found 370 PIs in female and 354 in male ticks. In A. americanum we found 231 and 442 in unfed and fed ticks, respectively. In females, we found 206 and 164 PIs in SG and MG, respectively. The majority of highly cross-tick species conserved PIs were in families I1, I2, I8, I21, I25, I29, I39 and I43. CONCLUSIONS Ticks appear to express large and diverse repertoires of PIs that primarily target serine protease-mediated pathways. We speculate that PI families with the highest repertoires may contain functionally redundant members while those with the lowest repertoires are functionally non-redundant PIs. We found some highly conserved PIs in the latter category, which we propose as potential candidates for broad-spectrum anti-tick vaccine candidates or druggable targets in tick control.
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Affiliation(s)
- Lindsay M Porter
- Department of Veterinary Pathobiology, Texas A&M University College of Veterinary Medicine and Biomedical Sciences, 4647 TAMU, College Station, TX, 77843, USA
| | - Željko M Radulović
- Department of Veterinary Pathobiology, Texas A&M University College of Veterinary Medicine and Biomedical Sciences, 4647 TAMU, College Station, TX, 77843, USA
| | - Albert Mulenga
- Department of Veterinary Pathobiology, Texas A&M University College of Veterinary Medicine and Biomedical Sciences, 4647 TAMU, College Station, TX, 77843, USA.
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37
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Yun SI, Kim KK. Ubiquitin-specific protease 4 (USP4) suppresses myoblast differentiation by down regulating MyoD activity in a catalytic-independent manner. Cell Signal 2017; 35:48-60. [PMID: 28336234 DOI: 10.1016/j.cellsig.2017.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 02/28/2017] [Accepted: 03/19/2017] [Indexed: 11/27/2022]
Abstract
For myotube formation, proliferation and differentiation of myoblasts must be tightly regulated by various myogenic regulatory factors (MRFs) such as MyoD, myogenic factor 5 (Myf5), myogenin, and muscle-specific regulatory factor 4 (MRF4). However, it is not clear how the expression or activity of these MRFs is controlled during myogenesis. In this study, we identified ubiquitin-specific protease 4 (USP4), one of deubiquitinating enzymes, as a suppressor of MRFs by demonstrating that a knockdown of USP4 enhances myogenesis by controlling MyoD and the level of myogenesis marker proteins in C2C12 cells. However, it was revealed that the effect of USP4 on myogenesis is independent of its deubiquitinase activity because the catalytic-site mutant has the same inhibitory effects as the wild-type USP4 on myogenesis. We observed that the activity and protein levels of both HDAC1 and HDAC4 are decreased when myoblast differentiation is promoted by the USP4 knockdown. We also found that the role of USP4 in muscle differentiation is correlated with two major signaling pathways in myogenesis, AKT and the p38 mitogen-activated protein kinase pathways. According to these results, we propose that USP4 is a key player in myogenic differentiation; it controls myogenic regulatory factors in a catalytic-independent manner.
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Affiliation(s)
- Sun-Il Yun
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
| | - Kyeong Kyu Kim
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea.
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38
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Huang B, Baek SH. Trim13 Potentiates Toll-Like Receptor 2-Mediated Nuclear Factor κB Activation via K29-Linked Polyubiquitination of Tumor Necrosis Factor Receptor-Associated Factor 6. Mol Pharmacol 2017; 91:307-316. [PMID: 28087809 DOI: 10.1124/mol.116.106716] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 01/03/2017] [Indexed: 12/13/2022] Open
Abstract
Ubiquitination is a versatile post-translational modification involved in nuclear factor-κB (NF-κB) activation of Toll-like receptor (TLR) signaling. Here, we demonstrated that Trim13, an E3 ubiquitin ligase, is up-regulated in macrophages upon stimulation with TLR2 ligand. Knockdown of Trim13 attenuated TLR2-mediated production of cytokines/chemokines and formation of foam cells as well as activation of NF-κB. Trim13 interacts with tumor necrosis factor receptor-associated factor 6 (TRAF6) and potentiates NF-κB activity via ubiquitination of TRAF6. Overexpression of inactive mutant (C10/13A) or really interesting new gene (RING) deletion mutant of Trim13 did not potentiate ubiquitination of TRAF6 or activation of NF-κB. These results suggest that the effects of Trim13 are dependent on its E3 ligase activity. Trim13 used K29-linked polyubiquitin chains for TRAF6 ubiquitination to promote NF-κB activity and thus potentiated activation of TLR2-mediated immune responses. Our data identify Trim13 as a positive regulator of NF-κB activation and suggest that K29-linked polyubiquitination is a specific ubiquitin-linked pattern involved in the control of TLR2 signaling.
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Affiliation(s)
- Bin Huang
- Department of Biochemistry and Molecular Biology, College of Medicine, Yeungnam University, Daegu, South Korea
| | - Suk-Hwan Baek
- Department of Biochemistry and Molecular Biology, College of Medicine, Yeungnam University, Daegu, South Korea
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Interplay between Inflammation and Stemness in Cancer Cells: The Role of Toll-Like Receptor Signaling. J Immunol Res 2016; 2016:4368101. [PMID: 28116318 PMCID: PMC5223024 DOI: 10.1155/2016/4368101] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 11/22/2016] [Accepted: 12/05/2016] [Indexed: 02/08/2023] Open
Abstract
Cancer stem cells (CSCs) are a small population of cancer cells that exhibit stemness. These cells contribute to cancer metastasis, treatment resistance, and relapse following therapy; therefore, they may cause malignancy and reduce the success of cancer treatment. Nuclear factor kappa B- (NF-κB-) mediated inflammatory responses increase stemness in cancer cells, and CSCs constitutively exhibit higher NF-κB activation, which in turn increases their stemness. These opposite effects form a positive feedback loop that further amplifies inflammation and stemness in cancer cells, thereby expanding CSC populations in the tumor. Toll-like receptors (TLRs) activate NF-κB-mediated inflammatory responses when stimulated by carcinogenic microbes and endogenous molecules released from cells killed during cancer treatment. NF-κB activation by extrinsic TLR ligands increases stemness in cancer cells. Moreover, it was recently shown that increased NF-κB activity and inflammatory responses in CSCs may be caused by altered TLR signaling during the enrichment of stemness in cancer cells. Thus, the activation of TLR signaling by extrinsic and intrinsic factors drives a positive interplay between inflammation and stemness in cancer cells.
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40
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Ding C, Li F, Long Y, Zheng J. Chloroquine attenuates lipopolysaccharide-induced inflammatory responses through upregulation of USP25. Can J Physiol Pharmacol 2016; 95:481-491. [PMID: 28134560 DOI: 10.1139/cjpp-2016-0303] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Lipopolysaccharide (LPS) is a key pathogenic factor in sepsis, and its recognition by toll-like receptor 4 (TLR4) can activate two district signaling pathways, leading to activation of transcription factors including NF-κB and interferon regulatory factor 3 (IRF3). Chloroquine (CQ) has been shown to affect LPS-TLR4 colocalization and inhibit both MyD88-dependent and TRAM/TRIF-dependent pathways, though the mechanism involved is still poorly understood. Here, we found that the ubiquitin-proteasome system might be involved in this process. CQ increased USP25, a deubiquitinating enzyme, as well as mRNA and protein expression in a dose-dependent manner, which might to some degree be involved in CQ attenuation of LPS-induced macrophage activation. Overexpression of USP25 decreased LPS-induced inflammatory cytokines like TNF-α, IL-6, and IFN-β, while specific siRNA-mediated USP25 silencing increased TNF-α, IL-6, and IFN-β production and secretion. In addition, USP25 deletion strengthened mitogen-activated protein kinase (MAPKs) phosphorylation and IκB degradation. Moreover, USP25 interference increased NF-κB and IRF3 nuclear translocation. Taken together, our data demonstrated a new possible regulator of LPS-induced macrophage activation mediated by CQ, through upregulation of USP25.
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Affiliation(s)
- Changyu Ding
- Medical Research Center, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba Distrinct, Chongqing 400038, P.R. China.,Medical Research Center, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba Distrinct, Chongqing 400038, P.R. China
| | - Fangfang Li
- Medical Research Center, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba Distrinct, Chongqing 400038, P.R. China.,Medical Research Center, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba Distrinct, Chongqing 400038, P.R. China
| | - Yupeng Long
- Medical Research Center, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba Distrinct, Chongqing 400038, P.R. China.,Medical Research Center, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba Distrinct, Chongqing 400038, P.R. China
| | - Jiang Zheng
- Medical Research Center, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba Distrinct, Chongqing 400038, P.R. China.,Medical Research Center, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba Distrinct, Chongqing 400038, P.R. China
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41
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Zhou F, Li F, Fang P, Dai T, Yang B, van Dam H, Jia J, Zheng M, Zhang L. Ubiquitin-Specific Protease 4 Antagonizes Osteoblast Differentiation Through Dishevelled. J Bone Miner Res 2016; 31:1888-1898. [PMID: 27128386 DOI: 10.1002/jbmr.2863] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/20/2016] [Accepted: 04/27/2016] [Indexed: 11/08/2022]
Abstract
The canonical Wnt/β-catenin signaling pathway plays a pivotal role and is essentially required for the osteoblast differentiation and bone formation. In this study, we found ubiquitin-specific peptidase 4 (USP4) to strongly inhibit the Wnt/β-catenin signaling by removing Lysine-63 linked poly-ubiquitin chain from Dishevelled (Dvl). Ectopic expression of USP4 promoted β-catenin poly-ubiquitination and thus inhibited Wnt-induced accumulation of cytosolic β-catenin and counteracted Wnt-induced transcriptional activity. Moreover, USP4 knockdown or USP4 knockout led to an increase in the active β-catenin levels and in activation of Wnt/β-catenin-induced transcription. Functional studies in C2C12 myoblasts and KS483 osteoprogenitor cells showed that ectopic expression of USP4 resulted in impaired activation of endogenous Wnt3a-induced genes and decreased osteoblast differentiation and mineralization, whereas USP4 depletion showed the opposite effect. These results identify USP4 as a novel regulator of Dvl in Wnt/β-catenin signal and show its involvement in Wnt3a-induced osteoblast differentiation. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- Fangfang Zhou
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, China. .,Institutes of Biology and Medical Science, Soochow University, Suzhou, PR China. .,Department of Molecular Cell Biology, Cancer Genomics Centre Netherlands, Leiden University Medical Center, Leiden, The Netherlands.
| | - Fang Li
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, China
| | - Pengfei Fang
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, China
| | - Tong Dai
- Institutes of Biology and Medical Science, Soochow University, Suzhou, PR China
| | - Bing Yang
- Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, USA
| | - Hans van Dam
- Department of Molecular Cell Biology, Cancer Genomics Centre Netherlands, Leiden University Medical Center, Leiden, The Netherlands
| | - Junling Jia
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, China
| | - Min Zheng
- State Key Laboratory for Diagnostic and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, Hangzhou, China
| | - Long Zhang
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, China.
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Li Y, Jiang D, Zhang Q, Liu X, Cai Z. Ubiquitin-specific protease 4 inhibits breast cancer cell growth through the upregulation of PDCD4. Int J Mol Med 2016; 38:803-11. [PMID: 27430936 PMCID: PMC4990282 DOI: 10.3892/ijmm.2016.2685] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 07/04/2016] [Indexed: 01/23/2023] Open
Abstract
Breast cancer is a common malignant tumor affecting women. The study of the association between breast cancer and molecular aberrations may lead to the development of novel diagnostic and therapeutic strategies for the disease. In the present study, we examined the role of ubiquitin-specific protease 4 (USP4) in breast cancer. We found that USP4 expression was significantly decreased in breast cancer tissue samples compared with paired normal breast tissue samples (P<0.001). USP4 was identified as a tumor suppressor. In addition, by inducing USP4 overexpression (using a USP4 overexpression plasmid) or the knockdown of USP4 (by transfection with a USP4 shRNA plasmid), we found that USP4 inhibited cell proliferation in vitro. We also found that USP4 suppressed tumor growth by using a mouse tumor xenograft model. Moreover, programmed cell death 4 (PCD4) was identified to be a target of USP4, which plays a role as a tumor suppressor. As a whole, our findings sugggest that USP4 acts as a tumor suppressor in breast cancer and that it may be an effective target for the treatment of breast cancer.
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Affiliation(s)
- Yang Li
- Department of Breast Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042
| | - Daqing Jiang
- Department of Breast Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042
| | - Qi Zhang
- Department of Breast Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042
| | - Xiaoli Liu
- Department of Interventional Radiology, The Second Affiliated Hospital of Dalian Medical University
| | - Zhengang Cai
- Department of Breast Surgery, The First Affiliated Hospital, Dalian Medical University, Dalian, Liaoning 116023, P.R. China
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43
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He B, Zhao YC, Gao LC, Ying XY, Xu LW, Su YY, Ji QQ, Lin N, Pu J. Ubiquitin-Specific Protease 4 Is an Endogenous Negative Regulator of Pathological Cardiac Hypertrophy. Hypertension 2016; 67:1237-48. [PMID: 27045030 DOI: 10.1161/hypertensionaha.116.07392] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 03/08/2016] [Indexed: 11/16/2022]
Abstract
Dysregulation of the ubiquitin proteasome system components ubiquitin ligases and proteasome plays an important role in the pathogenesis of cardiac hypertrophy. However, little is known about the role of another ubiquitin proteasome system component, the deubiquitinating enzymes, in cardiac hypertrophy. Here, we revealed a crucial role of ubiquitin specific protease 4 (USP4), a deubiquitinating enzyme prominently expressed in the heart, in attenuating pathological cardiac hypertrophy and dysfunction. USP4 levels were consistently decreased in human failing hearts and in murine hypertrophied hearts. Adenovirus-mediated gain- and loss-of-function approaches indicated that deficiency of endogenous USP4 promoted myocyte hypertrophy induced by angiotensin II in vitro, whereas restoration of USP4 significantly attenuated the prohypertrophic effect of angiotensin II. To corroborate the role of USP4 in vivo, we generated USP4 global knockout mice and mice with cardiac-specific overexpression of USP4. Consistent with the in vitro study, USP4 depletion exacerbated the hypertrophic phenotype and cardiac dysfunction in mice subjected to pressure overload, whereas USP4 transgenic mice presented ameliorated pathological cardiac hypertrophy compared with their control littermates. Molecular analysis revealed that USP4 deficiency augmented the activation of the transforming growth factor β–activated kinase 1 (TAK1)-(JNK1/2)/P38 signaling in response to hypertrophic stress, and blockage of TAK1 activation abolished the pathological effects of USP4 deficiency in vivo. These findings provide the first evidence for the involvement of USP4 in cardiac hypertrophy, and shed light on the therapeutic potential of targeting USP4 in the treatment of cardiac hypertrophy.
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Affiliation(s)
- Ben He
- From the Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yi-Chao Zhao
- From the Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ling-Chen Gao
- From the Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-Ying Ying
- From the Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Long-Wei Xu
- From the Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuan-Yuan Su
- From the Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qing-Qi Ji
- From the Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Nan Lin
- From the Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jun Pu
- From the Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Selection preserves Ubiquitin Specific Protease 4 alternative exon skipping in therian mammals. Sci Rep 2016; 6:20039. [PMID: 26833277 PMCID: PMC4735762 DOI: 10.1038/srep20039] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 12/23/2015] [Indexed: 01/03/2023] Open
Abstract
Ubiquitin specific protease 4 (USP4) is a highly networked deubiquitinating enzyme with reported roles in cancer, innate immunity and RNA splicing. In mammals it has two dominant isoforms arising from inclusion or skipping of exon 7 (E7). We evaluated two plausible mechanisms for the generation of these isoforms: (A) E7 skipping due to a long upstream intron and (B) E7 skipping due to inefficient 5′ splice sites (5′SS) and/or branchpoint sites (BPS). We then assessed whether E7 alternative splicing is maintained by selective pressure or arose from genetic drift. Both transcript variants were generated from a USP4-E7 minigene construct with short flanking introns, an observation consistent with the second mechanism whereby differential splice signal strengths are the basis of E7 skipping. Optimization of the downstream 5′SS eliminated E7 skipping. Experimental validation of the correlation between 5′SS identity and exon skipping in vertebrates pinpointed the +6 site as the key splicing determinant. Therian mammals invariably display a 5′SS configuration favouring alternative splicing and the resulting isoforms have distinct subcellular localizations. We conclude that alternative splicing of mammalian USP4 is under selective maintenance and that long and short USP4 isoforms may target substrates in various cellular compartments.
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45
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Yuan B, Shen H, Lin L, Su T, Zhong L, Yang Z. MicroRNA367 negatively regulates the inflammatory response of microglia by targeting IRAK4 in intracerebral hemorrhage. J Neuroinflammation 2015; 12:206. [PMID: 26552593 PMCID: PMC4640168 DOI: 10.1186/s12974-015-0424-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 10/31/2015] [Indexed: 12/22/2022] Open
Abstract
Background Intracerebral hemorrhage (ICH) induces microglial activation and the release of inflammatory cytokines, leading to inflammation in the brain. IRAK4, an essential component of the MyD88-dependent pathway, activates subsets of divergent signaling pathways in inflammation. Methods In the experiment, microglia were stimulated with erythrocyte lysates, and then miR-367, IRAK4, NF-ĸB activation and downstream proinflammatory mediator production were analyzed. In addition, inflammation, brain edema, and neurological functions in ICH mice were also assessed. Results Here, we report that ICH downregulated miR-367 expression but upregulated IRAK4 expression in primary microglia. We also demonstrate that miR-367 suppressed IRAK4 expression by directly binding its 3′-untranslated region. MiR-367 inhibited NF-ĸB activation and downstream proinflammatory mediator production. Knocking down IRAK4 in microglia significantly decreased the IRAK4 expression and inhibited the NF-ĸB activation and the downstream production of proinflammatory mediators. In addition, our results indicate that miR-367 could inhibit expression of proinflammatory cytokines, reduce brain edema, and improve neurological functions in ICH mice. Conclusions In conclusion, our study demonstrates that miR-367/IRAK4 pathway plays an important role in microglial activation and neuroinflammation in ICH. Our finding also suggests that miR-367 might represent a potential therapeutic target for ICH.
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Affiliation(s)
- Bangqing Yuan
- Department of Neurosurgery, The 476th Hospital of PLA, Fuzhou, Fujian, 350025, China.
| | - Hanchao Shen
- Department of Neurosurgery, The 476th Hospital of PLA, Fuzhou, Fujian, 350025, China.
| | - Li Lin
- Department of Neurosurgery, The 476th Hospital of PLA, Fuzhou, Fujian, 350025, China.
| | - Tonggang Su
- Department of Neurosurgery, The 476th Hospital of PLA, Fuzhou, Fujian, 350025, China.
| | - Lina Zhong
- Department of Neurology, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160, China.
| | - Zhao Yang
- Department of Neurology, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160, China.
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46
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Liu H, Zhang H, Wang X, Tian Q, Hu Z, Peng C, Jiang P, Wang T, Guo W, Chen Y, Li X, Zhang P, Pei H. The Deubiquitylating Enzyme USP4 Cooperates with CtIP in DNA Double-Strand Break End Resection. Cell Rep 2015; 13:93-107. [PMID: 26387952 DOI: 10.1016/j.celrep.2015.08.056] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 07/11/2015] [Accepted: 08/19/2015] [Indexed: 12/27/2022] Open
Abstract
DNA end resection is a highly regulated and critical step in DNA double-stranded break (DSB) repair. In higher eukaryotes, DSB resection is initiated by the collaborative action of CtIP and the MRE11-RAD50-NBS1 (MRN) complex. Here, we find that the deubiquitylating enzyme USP4 directly participates in DSB resection and homologous recombination (HR). USP4 confers resistance to DNA damage-inducing agents. Mechanistically, USP4 interacts with CtIP and MRN via a specific, conserved region and the catalytic domain of USP4, respectively, and regulates CtIP recruitment to sites of DNA damage. We also find that USP4 autodeubiquitylation is essential for its HR functions. Collectively, our findings identify USP4 as a key regulator of DNA DSB end resection.
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Affiliation(s)
- Hailong Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Haoxing Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Xiaohui Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Qingsong Tian
- Department of Orthopedics, Renhe Hospital of Three Gorges University, Yichang 443001, China
| | - Zhaohua Hu
- Department of Orthopedics, Renhe Hospital of Three Gorges University, Yichang 443001, China
| | - Changmin Peng
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Lab, College of Biotechnology, Tianjin University of Science and Technology, No. 29, 13ST. TEDA, Tianjin 300457, China
| | - Pei Jiang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - TingTing Wang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Wei Guo
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Yali Chen
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Xinzhi Li
- Department of Orthopedics, Renhe Hospital of Three Gorges University, Yichang 443001, China
| | - Pumin Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Huadong Pei
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 100850, China.
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47
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Panda S, Nilsson J, Gekara N. Deubiquitinase MYSM1 Regulates Innate Immunity through Inactivation of TRAF3 and TRAF6 Complexes. Immunity 2015; 43:647-59. [DOI: 10.1016/j.immuni.2015.09.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 05/14/2015] [Accepted: 07/21/2015] [Indexed: 11/25/2022]
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48
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Li Z, Hao Q, Luo J, Xiong J, Zhang S, Wang T, Bai L, Wang W, Chen M, Wang W, Gu L, Lv K, Chen J. USP4 inhibits p53 and NF-κB through deubiquitinating and stabilizing HDAC2. Oncogene 2015; 35:2902-12. [PMID: 26411366 PMCID: PMC4895393 DOI: 10.1038/onc.2015.349] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 06/10/2015] [Accepted: 08/10/2015] [Indexed: 12/30/2022]
Abstract
Histone deacetylases (HDACs) are major epigenetic modulators involved in a broad spectrum of human diseases including cancers. As HDACs are promising targets of cancer therapy, it is important to understand the mechanisms of HDAC regulation. In this study, we show that ubiquitin-specific peptidase 4 (USP4) interacts directly with and deubiquitinates HDAC2, leading to the stabilization of HDAC2. Accumulation of HDAC2 in USP4-overexpression cells leads to compromised p53 acetylation as well as crippled p53 transcriptional activation, accumulation and apoptotic response upon DNA damage. Moreover, USP4 targets HDAC2 to downregulate tumor necrosis factor TNFα-induced nuclear factor (NF)-κB activation. Taken together, our study provides a novel insight into the ubiquitination and stability of HDAC2 and uncovers a previously unknown function of USP4 in cancers.
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Affiliation(s)
- Z Li
- State Key Laboratory of Cellular Stress Biology and School of Life Sciences, Xiamen University, Xiamen, China.,Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - Q Hao
- State Key Laboratory of Cellular Stress Biology and School of Life Sciences, Xiamen University, Xiamen, China.,Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - J Luo
- Department of Radiotherapy, Changzhou Tumor Hospital, Soochow University, Changzhou, China
| | - J Xiong
- State Key Laboratory of Cellular Stress Biology and School of Life Sciences, Xiamen University, Xiamen, China.,Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - S Zhang
- School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - T Wang
- State Key Laboratory of Cellular Stress Biology and School of Life Sciences, Xiamen University, Xiamen, China
| | - L Bai
- Zhongshan Hospital Xiamen University, Xiamen, China
| | - W Wang
- Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - M Chen
- Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - W Wang
- Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - L Gu
- Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - K Lv
- Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - J Chen
- Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
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49
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Chikina MD, Gerald CP, Li X, Ge Y, Pincas H, Nair VD, Wong AK, Krishnan A, Troyanskaya OG, Raymond D, Saunders-Pullman R, Bressman SB, Yue Z, Sealfon SC. Low-variance RNAs identify Parkinson's disease molecular signature in blood. Mov Disord 2015; 30:813-21. [PMID: 25786808 DOI: 10.1002/mds.26205] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 01/23/2015] [Accepted: 02/09/2015] [Indexed: 12/20/2022] Open
Abstract
The diagnosis of Parkinson's disease (PD) is usually not established until advanced neurodegeneration leads to clinically detectable symptoms. Previous blood PD transcriptome studies show low concordance, possibly resulting from the use of microarray technology, which has high measurement variation. The Leucine-rich repeat kinase 2 (LRRK2) G2019S mutation predisposes to PD. Using preclinical and clinical studies, we sought to develop a novel statistically motivated transcriptomic-based approach to identify a molecular signature in the blood of Ashkenazi Jewish PD patients, including LRRK2 mutation carriers. Using a digital gene expression platform to quantify 175 messenger RNA (mRNA) markers with low coefficients of variation (CV), we first compared whole-blood transcript levels in mouse models (1) overexpressing wild-type (WT) LRRK2, (2) overexpressing G2019S LRRK2, (3) lacking LRRK2 (knockout), and (4) and in WT controls. We then studied an Ashkenazi Jewish cohort of 34 symptomatic PD patients (both WT LRRK2 and G2019S LRRK2) and 32 asymptomatic controls. The expression profiles distinguished the four mouse groups with different genetic background. In patients, we detected significant differences in blood transcript levels both between individuals differing in LRRK2 genotype and between PD patients and controls. Discriminatory PD markers included genes associated with innate and adaptive immunity and inflammatory disease. Notably, gene expression patterns in levodopa-treated PD patients were significantly closer to those of healthy controls in a dose-dependent manner. We identify whole-blood mRNA signatures correlating with LRRK2 genotype and with PD disease state. This approach may provide insight into pathogenesis and a route to early disease detection.
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Affiliation(s)
- Maria D Chikina
- Departments of Neurology and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Christophe P Gerald
- Departments of Neurology and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Xianting Li
- Departments of Neurology and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Yongchao Ge
- Departments of Neurology and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Hanna Pincas
- Departments of Neurology and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Venugopalan D Nair
- Departments of Neurology and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Aaron K Wong
- Department of Computer Science, Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey, USA
| | - Arjun Krishnan
- Department of Computer Science, Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey, USA
| | - Olga G Troyanskaya
- Department of Computer Science, Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey, USA
| | - Deborah Raymond
- Department of Neurology, Mount Sinai Beth Israel, New York, New York, USA
| | | | - Susan B Bressman
- Department of Neurology, Mount Sinai Beth Israel, New York, New York, USA
| | - Zhenyu Yue
- Departments of Neurology and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Stuart C Sealfon
- Departments of Neurology and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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50
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Na YR, Yoon YN, Son D, Jung D, Gu GJ, Seok SH. Consistent inhibition of cyclooxygenase drives macrophages towards the inflammatory phenotype. PLoS One 2015; 10:e0118203. [PMID: 25680189 PMCID: PMC4334507 DOI: 10.1371/journal.pone.0118203] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 01/08/2015] [Indexed: 12/31/2022] Open
Abstract
Macrophages play important roles in defense against infection, as well as in homeostasis maintenance. Thus alterations of macrophage function can have unexpected pathological results. Cyclooxygenase (COX) inhibitors are widely used to relieve pain, but the effects of long-term usage on macrophage function remain to be elucidated. Using bone marrow-derived macrophage culture and long-term COX inhibitor treatments in BALB/c mice and zebrafish, we showed that chronic COX inhibition drives macrophages into an inflammatory state. Macrophages differentiated in the presence of SC-560 (COX-1 inhibitor), NS-398 (COX-2 inhibitor) or indomethacin (COX-1/2 inhibitor) for 7 days produced more TNFα or IL-12p70 with enhanced p65/IκB phosphoylation. YmI and IRF4 expression was reduced significantly, indicative of a more inflammatory phenotype. We further observed that indomethacin or NS-398 delivery accelerated zebrafish death rates during LPS induced sepsis. When COX inhibitors were released over 30 days from an osmotic pump implant in mice, macrophages from peritoneal cavities and adipose tissue produced more TNFα in both the basal state and under LPS stimulation. Consequently, indomethacin-exposed mice showed accelerated systemic inflammation after LPS injection. Our findings suggest that macrophages exhibit a more inflammatory phenotype when COX activities are chronically inhibited.
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Affiliation(s)
- Yi Rang Na
- Macrophage Lab, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Yi Na Yoon
- Macrophage Lab, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Dain Son
- Macrophage Lab, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Daun Jung
- Macrophage Lab, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Gyo Jeong Gu
- Macrophage Lab, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Seung Hyeok Seok
- Macrophage Lab, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
- * E-mail:
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