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Yin H, Guo X, Chen Y, Zeng Y, Mo X, Hong S, He H, Li J, Steinmetz R, Liu Q. TAB2 deficiency induces dilated cardiomyopathy by promoting RIPK1-dependent apoptosis and necroptosis. J Clin Invest 2022; 132:152297. [PMID: 34990405 PMCID: PMC8843707 DOI: 10.1172/jci152297] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 01/04/2022] [Indexed: 02/01/2023] Open
Abstract
Mutations in TGF-β-activated kinase 1 binding protein 2 (TAB2) have been implicated in the pathogenesis of dilated cardiomyopathy and/or congenital heart disease in humans, but the underlying mechanisms are currently unknown. Here, we identified an indispensable role for TAB2 in regulating myocardial homeostasis and remodeling by suppressing receptor-interacting protein kinase 1 (RIPK1) activation and RIPK1-dependent apoptosis and necroptosis. Cardiomyocyte-specific deletion of Tab2 in mice triggered dilated cardiomyopathy with massive apoptotic and necroptotic cell death. Moreover, Tab2-deficient mice were also predisposed to myocardial injury and adverse remodeling after pathological stress. In cardiomyocytes, deletion of TAB2 but not its close homolog TAB3 promoted TNF-α-induced apoptosis and necroptosis, which was rescued by forced activation of TAK1 or inhibition of RIPK1 kinase activity. Mechanistically, TAB2 critically mediates RIPK1 phosphorylation at Ser321 via a TAK1-dependent mechanism, which prevents RIPK1 kinase activation and the formation of RIPK1-FADD-caspase-8 apoptotic complex or RIPK1-RIPK3 necroptotic complex. Strikingly, genetic inactivation of RIPK1 with Ripk1-K45A knockin effectively rescued cardiac remodeling and dysfunction in Tab2-deficient mice. Together, these data demonstrated that TAB2 is a key regulator of myocardial homeostasis and remodeling by suppressing RIPK1-dependent apoptosis and necroptosis. Our results also suggest that targeting RIPK1-mediated cell death signaling may represent a promising therapeutic strategy for TAB2 deficiency-induced dilated cardiomyopathy.
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Affiliation(s)
- Haifeng Yin
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
| | - Xiaoyun Guo
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
| | - Yi Chen
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
| | - Yachang Zeng
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
| | - Xiaoliang Mo
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
| | - Siqi Hong
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
| | - Hui He
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
| | - Jing Li
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
| | - Rachel Steinmetz
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
| | - Qinghang Liu
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA
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Tai Z, Guan P, Zhang T, Liu W, Li L, Wu Y, Li G, Liu JX. Effects of parental environmental copper stress on offspring development: DNA methylation modification and responses of differentially methylated region-related genes in transcriptional expression. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127600. [PMID: 34801305 DOI: 10.1016/j.jhazmat.2021.127600] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/21/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
Parental environmental copper (Cu) exposure is widespread, causing problems for sustainability of fish populations, and epigenetics is suggested to be fundamental during the process, but the mechanism is scarcely reported. Here, we describe the effects of parental environmental Cu exposure on zebrafish developmental abnormality in subsequent generation. This study demonstrated for the first time that: 1. offspring from Cu-stressed paternal adult zebrafish showed developmental defects in the nervous and digestive system and changes in transcriptome; 2. Cu-induced alterations in sperm methylome and transcriptome could induce loci-specific alterations in DNA methylome and corresponding changes in the related gene transcription in offspring; 3. differentially methylated regions in pmpcb, crebl2 and tab2 promoters acted pivotally in their transcription; 4. pmpcb, crebl2 and tab2 are key individual contributors to parental Cu exposure-induced developmental defects in the nervous system, retina and digestive system of the offspring. Those data revealed that Cu-induced alterations in sperm methylome and transcriptome can be passed down to their fertilized offspring, reprogramming the epigenetic and transcriptional regulation of embryogenesis and causing embryonic developmental defects, suggesting that environmental Cu might pose a huge threat to the sustainability of fish populations.
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Affiliation(s)
- Zhipeng Tai
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China
| | - Pengpeng Guan
- College of Informatics, Agricultural Bioinformatics Key Laboratory of Hubei Province, Hubei Engineering Technology Research Center of Agricultural Big Data, Huazhong Agricultural University, Wuhan 430070, China
| | - Ting Zhang
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenye Liu
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China
| | - Lingya Li
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China
| | - You Wu
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China
| | - Guoliang Li
- College of Informatics, Agricultural Bioinformatics Key Laboratory of Hubei Province, Hubei Engineering Technology Research Center of Agricultural Big Data, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jing-Xia Liu
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China.
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3
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Gu Z, Chen X, Yang W, Qi Y, Yu H, Wang X, Gong Y, Chen Q, Zhong B, Dai L, Qi S, Zhang Z, Zhang H, Hu H. The SUMOylation of TAB2 mediated by TRIM60 inhibits MAPK/NF-κB activation and the innate immune response. Cell Mol Immunol 2021; 18:1981-1994. [PMID: 33184450 PMCID: PMC8322076 DOI: 10.1038/s41423-020-00564-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 09/27/2020] [Indexed: 02/05/2023] Open
Abstract
Activation of the TAK1 signalosome is crucial for mediating the innate immune response to pathogen invasion and is regulated by multiple layers of posttranslational modifications, including ubiquitination, SUMOylation, and phosphorylation; however, the underlying molecular mechanism is not fully understood. In this study, TRIM60 negatively regulated the formation and activation of the TAK1 signalosome. Deficiency of TRIM60 in macrophages led to enhanced MAPK and NF-κB activation, accompanied by elevated levels of proinflammatory cytokines but not IFN-I. Immunoprecipitation-mass spectrometry assays identified TAB2 as the target of TRIM60 for SUMOylation rather than ubiquitination, resulting in impaired formation of the TRAF6/TAB2/TAK1 complex and downstream MAPK and NF-κB pathways. The SUMOylation sites of TAB2 mediated by TRIM60 were identified as K329 and K562; substitution of these lysines with arginines abolished the SUMOylation of TAB2. In vivo experiments showed that TRIM60-deficient mice showed an elevated immune response to LPS-induced septic shock and L. monocytogenes infection. Our data reveal that SUMOylation of TAB2 mediated by TRIM60 is a novel mechanism for regulating the innate immune response, potentially paving the way for a new strategy to control antibacterial immune responses.
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Affiliation(s)
- Zhiwen Gu
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Xueying Chen
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Wenyong Yang
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Yu Qi
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Hui Yu
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Xiaomeng Wang
- Department of Virology, College of Life Sciences, Department of Immunology, Medical Research Institute, Wuhan University, Wuhan, 430072, China
| | - Yanqiu Gong
- Department of General Practice and Lab of PTM, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Qianqian Chen
- Department of Urology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Bo Zhong
- Department of Virology, College of Life Sciences, Department of Immunology, Medical Research Institute, Wuhan University, Wuhan, 430072, China
| | - Lunzhi Dai
- Department of General Practice and Lab of PTM, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Shiqian Qi
- Department of Urology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Zhiqiang Zhang
- Immunobiology and Transplant Science Center, Houston Methodist Hospital, Houston, TX, USA, 77030.
| | - Huiyuan Zhang
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.
| | - Hongbo Hu
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.
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4
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Zhou J, An C, Jin X, Hu Z, Safirstein RL, Wang Y. TAK1 deficiency attenuates cisplatin-induced acute kidney injury. Am J Physiol Renal Physiol 2019; 318:F209-F215. [PMID: 31813254 DOI: 10.1152/ajprenal.00516.2019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cisplatin can cause acute kidney injury (AKI), but the molecular mechanisms are not well understood. The objective of the present study was to examine the role of transforming growth factor-β-activated kinase-1 (TAK1) in the pathogenesis of cisplatin-induced AKI. Wild-type mice and proximal tubule TAK1-deficient mice were treated with vehicle or cisplatin. Compared with wild-type control mice, proximal tubule TAK1-deficient mice had less severe kidney dysfunction, tubular damage, and apoptosis after cisplatin-induced AKI. Furthermore, conditional disruption of TAK1 in proximal tubular epithelial cells reduced caspase-3 activation, proinflammatory molecule expression, and JNK phosphorylation in the kidney in cisplatin-induced AKI. Taken together, cisplatin activates TAK1-JNK signaling pathway to promote tubular epithelial cell apoptosis and inflammation in cisplatin-induced AKI. Targeting TAK1 could be a novel therapeutic strategy against cisplatin-induced AKI.
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Affiliation(s)
- Jun Zhou
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas.,Department of Anesthesiology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Changlong An
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas.,Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut
| | - Xiaogao Jin
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas.,Department of Anesthesiology, the Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Zhaoyong Hu
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Robert L Safirstein
- Renal Section, Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut
| | - Yanlin Wang
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas.,Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut.,Renal Section, Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut.,Department of Cell Biology, University of Connecticut School of Medicine, Farmington, Connecticut.,Institute for Systems Genomics, University of Connecticut School of Medicine, Farmington, Connecticut
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5
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Xu M, Liu PP, Li H. Innate Immune Signaling and Its Role in Metabolic and Cardiovascular Diseases. Physiol Rev 2019; 99:893-948. [PMID: 30565509 DOI: 10.1152/physrev.00065.2017] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The innate immune system is an evolutionarily conserved system that senses and defends against infection and irritation. Innate immune signaling is a complex cascade that quickly recognizes infectious threats through multiple germline-encoded cell surface or cytoplasmic receptors and transmits signals for the deployment of proper countermeasures through adaptors, kinases, and transcription factors, resulting in the production of cytokines. As the first response of the innate immune system to pathogenic signals, inflammatory responses must be rapid and specific to establish a physical barrier against the spread of infection and must subsequently be terminated once the pathogens have been cleared. Long-lasting and low-grade chronic inflammation is a distinguishing feature of type 2 diabetes and cardiovascular diseases, which are currently major public health problems. Cardiometabolic stress-induced inflammatory responses activate innate immune signaling, which directly contributes to the development of cardiometabolic diseases. Additionally, although the innate immune elements are highly conserved in higher-order jawed vertebrates, lower-grade jawless vertebrates lack several transcription factors and inflammatory cytokine genes downstream of the Toll-like receptors (TLRs) and retinoic acid-inducible gene-I (RIG-I)-like receptors (RLRs) pathways, suggesting that innate immune signaling components may additionally function in an immune-independent way. Notably, recent studies from our group and others have revealed that innate immune signaling can function as a vital regulator of cardiometabolic homeostasis independent of its immune function. Therefore, further investigation of innate immune signaling in cardiometabolic systems may facilitate the discovery of new strategies to manage the initiation and progression of cardiometabolic disorders, leading to better treatments for these diseases. In this review, we summarize the current progress in innate immune signaling studies and the regulatory function of innate immunity in cardiometabolic diseases. Notably, we highlight the immune-independent effects of innate immune signaling components on the development of cardiometabolic disorders.
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Affiliation(s)
- Meng Xu
- Department of Cardiology, Renmin Hospital of Wuhan University , Wuhan , China ; Medical Research Center, Zhongnan Hospital of Wuhan University , Wuhan , China ; Animal Experiment Center, Wuhan University , Wuhan , China ; Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario , Canada
| | - Peter P Liu
- Department of Cardiology, Renmin Hospital of Wuhan University , Wuhan , China ; Medical Research Center, Zhongnan Hospital of Wuhan University , Wuhan , China ; Animal Experiment Center, Wuhan University , Wuhan , China ; Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario , Canada
| | - Hongliang Li
- Department of Cardiology, Renmin Hospital of Wuhan University , Wuhan , China ; Medical Research Center, Zhongnan Hospital of Wuhan University , Wuhan , China ; Animal Experiment Center, Wuhan University , Wuhan , China ; Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario , Canada
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6
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Wang H, Chen Z, Li Y, Ji Q. NG25, an inhibitor of transforming growth factor‑β‑activated kinase 1, ameliorates neuronal apoptosis in neonatal hypoxic‑ischemic rats. Mol Med Rep 2017; 17:1710-1716. [PMID: 29138854 PMCID: PMC5780114 DOI: 10.3892/mmr.2017.8024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 08/29/2017] [Indexed: 01/27/2023] Open
Abstract
Transforming growth factor (TGF)-β-activated kinase 1 (TAK1) was found to be activated by TGF-β and acts as a central regulator of cell death in various types of disease. However, the expression and function of TAK1 in the neonatal brain following hypoxia-ischemia (HI) remains unclear. In the present study, western blotting and immunofluorescence were employed to determine the expression and distribution of TAK1 in the brain cortex of a perinatal HI rat model. In addition, the specific inhibitor of TAK1, NG25 was administered via intracerebroventricular injection, prior to insult of the neonatal rat brains, for neuroprotection. Western blotting and double immunofluorescence indicated that an increased expression level of phosphorylated-TAK1 was observed, and was localized with neurons and astrocytes, compared with the sham group. Further study demonstrated that injection of NG25 prior to insult significantly inhibited TAK1/c-Jun N-terminal kinases activity and dramatically ameliorated acute hypoxic-ischemic cerebral injury by inhibiting cell apoptosis in perinatal rats. Thus, NG25 ameliorates neuronal apoptosis in neonatal HI rats by inhibiting TAK1 expression and cell apoptosis. In addition, NG25 may serve as a promising novel neuroprotective inhibitor for perinatal cerebral injury.
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Affiliation(s)
- Hua Wang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Zhong Chen
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yu Li
- Department of Ophthalmology, Fourth Affiliated Hospital of Sichuan University, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Qiaoyun Ji
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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7
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Sun JH, Zhu XY, Dong TN, Zhang XH, Liu QQ, Li SQ, Du QX. An “up, no change, or down” system: Time-dependent expression of mRNAs in contused skeletal muscle of rats used for wound age estimation. Forensic Sci Int 2017; 272:104-110. [DOI: 10.1016/j.forsciint.2017.01.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 01/02/2017] [Accepted: 01/09/2017] [Indexed: 12/18/2022]
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TAK1 regulates hepatic lipid homeostasis through SREBP. Oncogene 2016; 35:3829-38. [PMID: 26973245 PMCID: PMC4956508 DOI: 10.1038/onc.2015.453] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 10/05/2015] [Accepted: 10/26/2015] [Indexed: 02/07/2023]
Abstract
Sterol regulatory element-binding proteins (SREBPs) are key transcription factors regulating cholesterol and fatty acid biosynthesis. SREBP activity is tightly regulated to maintain lipid homeostasis, and is modulated upon extracellular stimuli such as growth factors. While the homeostatic SREBP regulation is well studied, stimuli-dependent regulatory mechanisms are still elusive. Here we demonstrate that SREBPs are regulated by a previously uncharacterized mechanism through TGF-β activated kinase 1 (TAK1), a signaling molecule of inflammation. We found that TAK1 binds to and inhibits mature forms of SREBPs. In an in vivo setting, hepatocyte-specific Tak1 deletion upregulates liver lipid deposition and lipogenic enzymes in the mouse model. Furthermore, hepatic Tak1 deficiency causes steatosis pathologies including elevated blood triglyceride and cholesterol levels, which are established risk factors for the development of hepatocellular carcinoma (HCC) and are indeed correlated with Tak1-deficiency-induced HCC development. Pharmacological inhibition of SREBPs alleviated the steatosis and reduced the expression level of the HCC marker gene in the Tak1-deficient liver. Thus, TAK1 regulation of SREBP critically contributes to the maintenance of liver homeostasis to prevent steatosis, which is a potentially important mechanism to prevent HCC development.
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9
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TAK1 control of cell death. Cell Death Differ 2014; 21:1667-76. [PMID: 25146924 DOI: 10.1038/cdd.2014.123] [Citation(s) in RCA: 202] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 07/09/2014] [Accepted: 07/13/2014] [Indexed: 12/15/2022] Open
Abstract
Programmed cell death, a physiologic process for removing cells, is critically important in normal development and for elimination of damaged cells. Conversely, unattended cell death contributes to a variety of human disease pathogenesis. Thus, precise understanding of molecular mechanisms underlying control of cell death is important and relevant to public health. Recent studies emphasize that transforming growth factor-β-activated kinase 1 (TAK1) is a central regulator of cell death and is activated through a diverse set of intra- and extracellular stimuli. The physiologic importance of TAK1 and TAK1-binding proteins in cell survival and death has been demonstrated using a number of genetically engineered mice. These studies uncover an indispensable role of TAK1 and its binding proteins for maintenance of cell viability and tissue homeostasis in a variety of organs. TAK1 is known to control cell viability and inflammation through activating downstream effectors such as NF-κB and mitogen-activated protein kinases (MAPKs). It is also emerging that TAK1 regulates cell survival not solely through NF-κB but also through NF-κB-independent pathways such as oxidative stress and receptor-interacting protein kinase 1 (RIPK1) kinase activity-dependent pathway. Moreover, recent studies have identified TAK1's seemingly paradoxical role to induce programmed necrosis, also referred to as necroptosis. This review summarizes the consequences of TAK1 deficiency in different cell and tissue types from the perspective of cell death and also focuses on the mechanism by which TAK1 complex inhibits or promotes programmed cell death. This review serves to synthesize our current understanding of TAK1 in cell survival and death to identify promising directions for future research and TAK1's potential relevance to human disease pathogenesis.
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Zhao F, Li YW, Pan HJ, Shi CB, Luo XC, Li AX, Wu SQ. TAK1-binding proteins (TAB1 and TAB2) in grass carp (Ctenopharyngodon idella): identification, characterization, and expression analysis after infection with Ichthyophthirius multifiliis. FISH & SHELLFISH IMMUNOLOGY 2014; 38:389-399. [PMID: 24747054 DOI: 10.1016/j.fsi.2014.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 04/04/2014] [Accepted: 04/08/2014] [Indexed: 06/03/2023]
Abstract
Transforming growth factor-β activated kinase-1 (TAK1) is a key regulatory molecule in toll-like receptor (TLR), interleukin-1 (IL-1), and tumor necrosis factor (TNF) signaling pathways. The activation of TAK1 is specifically regulated by two TAK1-binding proteins, TAB1 and TAB2. However, the roles of TAB1 and TAB2 in fish have not been reported to date. In the present study, TAB1 (CiTAB1) and TAB2 (CiTAB2) in grass carp (Ctenopharyngodon idella) were identified and characterized, and their expression profiles were analyzed after fish were infected with the pathogenic ciliate Ichthyophthirius multifiliis. The full-length CiTAB1 cDNA is 1949 bp long with an open reading frame (ORF) of 1497 bp that encodes a putative protein of 498 amino acids containing a typical PP2Cc domain. The full-length CiTAB2 cDNA is 2967 bp long and contains an ORF of 2178 bp encoding a putative protein of 725 amino acids. Protein structure analysis revealed that CiTAB2 consists of three main structural domains: an N-terminal CUE domain, a coiled-coil domain, and a C-terminal ZnF domain. Multiple sequence alignment showed that CiTAB1 and CiTAB2 share high sequence identity with other known TAB1 and TAB2 proteins, and several conserved phosphorylation sites and an O-GlcNAc site were deduced in CiTAB1. Phylogenetic tree analysis demonstrated that CiTAB1 and CiTAB2 have the closest evolutionary relationship with TAB1 and TAB2 of Danio rerio, respectively. CiTAB1 and CiTAB2 were both widely expressed in all examined tissues with the highest levels in the heart and liver, respectively. After infection with I. multifiliis, the expressions of CiTAB1 and CiTAB2 were both significantly up-regulated in all tested tissues at most time points, which indicates that these proteins may be involved in the host immune response against I. multifiliis infection.
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Affiliation(s)
- Fei Zhao
- Key Laboratory of Fishery Drug Development, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China; State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Yan-Wei Li
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China.
| | - Hou-Jun Pan
- Key Laboratory of Fishery Drug Development, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China
| | - Cun-Bin Shi
- Key Laboratory of Fishery Drug Development, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China
| | - Xiao-Chun Luo
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, PR China
| | - An-Xing Li
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Shu-Qin Wu
- Key Laboratory of Fishery Drug Development, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China.
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