51
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Kong LR, Ong RW, Tan TZ, Mohamed Salleh NAB, Thangavelu M, Chan JV, Koh LYJ, Periyasamy G, Lau JA, Le TBU, Wang L, Lee M, Kannan S, Verma CS, Lim CM, Chng WJ, Lane DP, Venkitaraman A, Hung HT, Cheok CF, Goh BC. Targeting codon 158 p53-mutant cancers via the induction of p53 acetylation. Nat Commun 2020; 11:2086. [PMID: 32350249 PMCID: PMC7190866 DOI: 10.1038/s41467-020-15608-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 03/19/2020] [Indexed: 12/14/2022] Open
Abstract
Gain of function (GOF) DNA binding domain (DBD) mutations of TP53 upregulate chromatin regulatory genes that promote genome-wide histone methylation and acetylation. Here, we therapeutically exploit the oncogenic GOF mechanisms of p53 codon 158 (Arg158) mutation, a DBD mutant found to be prevalent in lung carcinomas. Using high throughput compound screening and combination analyses, we uncover that acetylating mutp53R158G could render cancers susceptible to cisplatin-induced DNA stress. Acetylation of mutp53R158G alters DNA binding motifs and upregulates TRAIP, a RING domain-containing E3 ubiquitin ligase which dephosphorylates IĸB and impedes nuclear translocation of RelA (p65), thus repressing oncogenic nuclear factor kappa-B (NF-ĸB) signaling and inducing apoptosis. Given that this mechanism of cytotoxic vulnerability appears inapt in p53 wild-type (WT) or other hotspot GOF mutp53 cells, our work provides a therapeutic opportunity specific to Arg158-mutp53 tumors utilizing a regimen consisting of DNA-damaging agents and mutp53 acetylators, which is currently being pursued clinically. Codon 158 gain-of-function mutant p53 (158-mutp53) promotes tumourigenesis in lung cancer. Here, the authors show that 158-mutp53 render cancers sensitive to cisplatin and p53 acetylation agents through a mechanism where acetylated mutant p53 upregulates TRAIP and inhibits NF-ĸB signaling.
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Affiliation(s)
- Li Ren Kong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore. .,Medical Research Council Cancer Unit, University of Cambridge, Cambridge, CB2 0XZ, UK.
| | - Richard Weijie Ong
- Laboratory of Molecular Endocrinology, National Cancer Centre Singapore, Singapore, Singapore
| | - Tuan Zea Tan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
| | | | - Matan Thangavelu
- Genome Institute of Singapore, Agency for Science, Technology & Research (A*STAR), Singapore, 138672, Singapore
| | - Jane Vin Chan
- Genome Institute of Singapore, Agency for Science, Technology & Research (A*STAR), Singapore, 138672, Singapore
| | - Lie Yong Judice Koh
- Genome Institute of Singapore, Agency for Science, Technology & Research (A*STAR), Singapore, 138672, Singapore
| | - Giridharan Periyasamy
- Genome Institute of Singapore, Agency for Science, Technology & Research (A*STAR), Singapore, 138672, Singapore
| | - Jieying Amelia Lau
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
| | - Thi Bich Uyen Le
- Laboratory of Molecular Endocrinology, National Cancer Centre Singapore, Singapore, Singapore
| | - Lingzhi Wang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore.,Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Miyoung Lee
- Medical Research Council Cancer Unit, University of Cambridge, Cambridge, CB2 0XZ, UK
| | - Srinivasaraghavan Kannan
- Bioinformatics Institute, Agency for Science, Technology, and Research (A*STAR), Singapore, 138671, Singapore
| | - Chandra S Verma
- Bioinformatics Institute, Agency for Science, Technology, and Research (A*STAR), Singapore, 138671, Singapore.,Department of Biological Sciences, National University of Singapore, Singapore, 117558, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore, 639798, Singapore
| | - Chwee Ming Lim
- Division of Surgical Oncology (Head and Neck Surgery), National University Cancer Institute, Singapore (NCIS), Singapore, 119074, Singapore
| | - Wee Joo Chng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore.,Department of Haematology-Oncology, National University Cancer Institute, Singapore, 119074, Singapore.,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore
| | - David P Lane
- p53 Laboratory (p53Lab), Agency for Science, Technology, and Research (A*STAR), Singapore, 138648, Singapore
| | - Ashok Venkitaraman
- Medical Research Council Cancer Unit, University of Cambridge, Cambridge, CB2 0XZ, UK
| | - Huynh The Hung
- Laboratory of Molecular Endocrinology, National Cancer Centre Singapore, Singapore, Singapore
| | - Chit Fang Cheok
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A*STAR), Singapore, 138673, Singapore.,Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119074, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore
| | - Boon Cher Goh
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore. .,Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore. .,Department of Haematology-Oncology, National University Cancer Institute, Singapore, 119074, Singapore.
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52
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Liang L, Cheng C, Hu G, Wang X, Liu J, Yan Z, Zeng W, Xia Y. TWEAK Promotes the Proliferation of Squamous Cell Carcinoma Cells Through Activating cIAP1 Signals. Front Oncol 2020; 10:439. [PMID: 32351884 PMCID: PMC7174721 DOI: 10.3389/fonc.2020.00439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 03/12/2020] [Indexed: 12/12/2022] Open
Abstract
Recent studies showed that tumor necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK) induces the proliferation of squamous cell carcinoma (SCC) cells. However, the precise mechanism underlying such effect of TWEAK remains unclear. This study was designed to elucidate the role of cellular inhibitor of apoptosis 1 (cIAP1) in TWEAK-induced proliferation of SCC cells. Human SCC cells (SCC-13, A431, and SCC-9) were cultured in vitro, receiving the stimulation of TWEAK or TNF-related apoptosis-inducing ligand (TRAIL). We found that TWEAK induced cytoplasmic cIAP1 importation and RIP1 ubiquitination in cells, followed by the activation of canonical nuclear factor kappa B signals. MV1, a cIAP1 inhibitor, abrogated TWEAK-induced proliferation of these cells. Moreover, the interaction between TWEAK and its receptor, fibroblast growth factor-inducible 14 (Fn14), enhanced the expression of TRAIL receptor types 3 and 4 (TRAIL-R3/4). Furthermore, the transfection of TRAIL-R3/4 siRNA abrogated the promotion effect of TWEAK on SCC-13 cell proliferation and cIAP1 expression. Therefore, TWEAK/Fn14 interaction promotes the proliferation of SCC cells through activating cIAP1 signals. Targeting the downstream cIAP1 signals might attenuate the effect of TWEAK on SCC cells.
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Affiliation(s)
- Lili Liang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Dermatology, The Affiliated Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan, China
| | - Chuantao Cheng
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Guanglei Hu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xuening Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jing Liu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhu Yan
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Weihui Zeng
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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53
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Workman LM, Zhang L, Fan Y, Zhang W, Habelhah H. TRAF2 Ser-11 Phosphorylation Promotes Cytosolic Translocation of the CD40 Complex To Regulate Downstream Signaling Pathways. Mol Cell Biol 2020; 40:e00429-19. [PMID: 32041822 PMCID: PMC7156217 DOI: 10.1128/mcb.00429-19] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/14/2019] [Accepted: 01/29/2020] [Indexed: 11/20/2022] Open
Abstract
CD40 plays an important role in immune responses by activating the c-Jun N-terminal protein kinase (JNK) and NF-κB pathways; however, the precise mechanisms governing the spatiotemporal activation of these two signaling pathways are not fully understood. Here, using four different TRAF2-deficient cell lines (A20.2J, CH12.LX, HAP1, and mouse embryonic fibroblasts [MEFs]) reconstituted with wild-type or phosphorylation mutant forms of TRAF2, along with immunoprecipitation, immunoblotting, gene expression, and immunofluorescence analyses, we report that CD40 ligation elicits TANK-binding kinase 1 (TBK1)-mediated phosphorylation of TRAF2 at Ser-11. This phosphorylation interfered with the interaction between TRAF2's RING domain and membrane phospholipids and enabled translocation of the TRAF2 complex from CD40 to the cytoplasm. We also observed that this cytoplasmic translocation is required for full activation of the JNK pathway and the secondary phase of the NF-κB pathway. Moreover, we found that in the absence of Ser-11 phosphorylation, the TRAF2 RING domain interacts with phospholipids, leading to the translocation of the TRAF2 complex to lipid rafts, resulting in its degradation and activation of the noncanonical NF-κB pathway. Thus, our results provide new insights into the CD40 signaling mechanisms whereby Ser-11 phosphorylation controls RING domain-dependent subcellular localization of TRAF2 to modulate the spatiotemporal activation of the JNK and NF-κB pathways.
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Affiliation(s)
- Lauren M Workman
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Laiqun Zhang
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Yumei Fan
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Science, Hebei Normal University, Shijiazhuang, People's Republic of China
| | - Weizhou Zhang
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Hasem Habelhah
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
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54
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Newton K. Multitasking Kinase RIPK1 Regulates Cell Death and Inflammation. Cold Spring Harb Perspect Biol 2020; 12:cshperspect.a036368. [PMID: 31427374 DOI: 10.1101/cshperspect.a036368] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Receptor-interacting serine threonine kinase 1 (RIPK1) is a widely expressed kinase that is essential for limiting inflammation in both mice and humans. Mice lacking RIPK1 die at birth from multiorgan inflammation and aberrant cell death, whereas humans lacking RIPK1 are immunodeficient and develop very early-onset inflammatory bowel disease. In contrast to complete loss of RIPK1, inhibiting the kinase activity of RIPK1 genetically or pharmacologically prevents cell death and inflammation in several mouse disease models. Indeed, small molecule inhibitors of RIPK1 are in phase I clinical trials for amyotrophic lateral sclerosis, and phase II clinical trials for psoriasis, rheumatoid arthritis, and ulcerative colitis. This review focuses on which signaling pathways use RIPK1, how activation of RIPK1 is regulated, and when activation of RIPK1 appears to be an important driver of inflammation.
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Affiliation(s)
- Kim Newton
- Department of Physiological Chemistry, Genentech, South San Francisco, California 94080, USA
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55
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Atretkhany KSN, Gogoleva VS, Drutskaya MS, Nedospasov SA. Distinct modes of TNF signaling through its two receptors in health and disease. J Leukoc Biol 2020; 107:893-905. [PMID: 32083339 DOI: 10.1002/jlb.2mr0120-510r] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 01/03/2020] [Accepted: 01/21/2020] [Indexed: 12/14/2022] Open
Abstract
TNF is a key proinflammatory and immunoregulatory cytokine whose deregulation is associated with the development of autoimmune diseases and other pathologies. Recent studies suggest that distinct functions of TNF may be associated with differential engagement of its two receptors: TNFR1 or TNFR2. In this review, we discuss the relative contributions of these receptors to pathogenesis of several diseases, with the focus on autoimmunity and neuroinflammation. In particular, we discuss the role of TNFRs in the development of regulatory T cells during neuroinflammation and recent findings concerning targeting TNFR2 with agonistic and antagonistic reagents in various murine models of autoimmune and neuroinflammatory disorders and cancer.
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Affiliation(s)
- Kamar-Sulu N Atretkhany
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,Lomonosov Moscow State University, Moscow, Russia
| | - Violetta S Gogoleva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Marina S Drutskaya
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Sergei A Nedospasov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,Lomonosov Moscow State University, Moscow, Russia.,Sirius University of Science and Technology, Sochi, Russia
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56
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Feoktistova M, Makarov R, Brenji S, Schneider AT, Hooiveld GJ, Luedde T, Leverkus M, Yazdi AS, Panayotova-Dimitrova D. A20 Promotes Ripoptosome Formation and TNF-Induced Apoptosis via cIAPs Regulation and NIK Stabilization in Keratinocytes. Cells 2020; 9:E351. [PMID: 32028675 PMCID: PMC7072579 DOI: 10.3390/cells9020351] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 01/29/2020] [Accepted: 02/01/2020] [Indexed: 12/30/2022] Open
Abstract
The ubiquitin-editing protein A20 (TNFAIP3) is a known key player in the regulation of immune responses in many organs. Genome-wide associated studies (GWASs) have linked A20 with a number of inflammatory and autoimmune disorders, including psoriasis. Here, we identified a previously unrecognized role of A20 as a pro-apoptotic factor in TNF-induced cell death in keratinocytes. This function of A20 is mediated via the NF-κB-dependent alteration of cIAP1/2 expression. The changes in cIAP1/2 protein levels promote NIK stabilization and subsequent activation of noncanonical NF-κB signaling. Upregulation of TRAF1 expression triggered by the noncanonical NF-κB signaling further enhances the NIK stabilization in an autocrine manner. Finally, stabilized NIK promotes the formation of the ripoptosome and the execution of cell death. Thus, our data demonstrate that A20 controls the execution of TNF-induced cell death on multiple levels in keratinocytes. This signaling mechanism might have important implications for the development of new therapeutic strategies for the treatment of A20-associated skin diseases.
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Affiliation(s)
- Maria Feoktistova
- Department of Dermatology and Allergology, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany; (M.F.); (R.M.); (S.B.); (A.S.Y.)
| | - Roman Makarov
- Department of Dermatology and Allergology, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany; (M.F.); (R.M.); (S.B.); (A.S.Y.)
| | - Sihem Brenji
- Department of Dermatology and Allergology, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany; (M.F.); (R.M.); (S.B.); (A.S.Y.)
| | - Anne T. Schneider
- Department of Medicine III, Department of Gastroenterology, Hepatology and Hepatobiliary Oncology, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany; (A.T.S.); (T.L.)
| | - Guido J. Hooiveld
- Nutrition, Metabolism & Genomics Group, Division of Human Nutrition & Health, Wageningen University, 6700 AA Wageningen; The Netherlands;
| | - Tom Luedde
- Department of Medicine III, Department of Gastroenterology, Hepatology and Hepatobiliary Oncology, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany; (A.T.S.); (T.L.)
| | - Martin Leverkus
- Department of Dermatology and Allergology, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany; (M.F.); (R.M.); (S.B.); (A.S.Y.)
| | - Amir S. Yazdi
- Department of Dermatology and Allergology, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany; (M.F.); (R.M.); (S.B.); (A.S.Y.)
| | - Diana Panayotova-Dimitrova
- Department of Dermatology and Allergology, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany; (M.F.); (R.M.); (S.B.); (A.S.Y.)
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57
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The Immuno-Modulatory Effects of Inhibitor of Apoptosis Protein Antagonists in Cancer Immunotherapy. Cells 2020; 9:cells9010207. [PMID: 31947615 PMCID: PMC7017284 DOI: 10.3390/cells9010207] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/06/2020] [Accepted: 01/11/2020] [Indexed: 12/20/2022] Open
Abstract
One of the hallmarks of cancer cells is their ability to evade cell death via apoptosis. The inhibitor of apoptosis proteins (IAPs) are a family of proteins that act to promote cell survival. For this reason, upregulation of IAPs is associated with a number of cancer types as a mechanism of resistance to cell death and chemotherapy. As such, IAPs are considered a promising therapeutic target for cancer treatment, based on the role of IAPs in resistance to apoptosis, tumour progression and poor patient prognosis. The mitochondrial protein smac (second mitochondrial activator of caspases), is an endogenous inhibitor of IAPs, and several small molecule mimetics of smac (smac-mimetics) have been developed in order to antagonise IAPs in cancer cells and restore sensitivity to apoptotic stimuli. However, recent studies have revealed that smac-mimetics have broader effects than was first attributed. It is now understood that they are key regulators of innate immune signalling and have wide reaching immuno-modulatory properties. As such, they are ideal candidates for immunotherapy combinations. Pre-clinically, successful combination therapies incorporating smac-mimetics and oncolytic viruses, as with chimeric antigen receptor (CAR) T cell therapy, have been reported, and clinical trials incorporating smac-mimetics and immune checkpoint blockade are ongoing. Here, the potential of IAP antagonism to enhance immunotherapy strategies for the treatment of cancer will be discussed.
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58
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Inhibitory Effect of β-Carotene on Helicobacter pylori-Induced TRAF Expression and Hyper-Proliferation in Gastric Epithelial Cells. Antioxidants (Basel) 2019; 8:antiox8120637. [PMID: 31835889 PMCID: PMC6943724 DOI: 10.3390/antiox8120637] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/29/2019] [Accepted: 12/09/2019] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori infection causes the hyper-proliferation of gastric epithelial cells that leads to the development of gastric cancer. Overexpression of tumor necrosis factor receptor associated factor (TRAF) is shown in gastric cancer cells. The dietary antioxidant β-carotene has been shown to counter hyper-proliferation in H. pylori-infected gastric epithelial cells. The present study was carried out to examine the β-carotene mechanism of action. We first showed that H. pylori infection decreases cellular IκBα levels while increasing cell viability, NADPH oxidase activity, reactive oxygen species production, nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) activation, and TRAF1 and TRAF2 gene expression, as well as protein–protein interaction in gastric epithelial AGS cells. We then demonstrated that pretreatment of cells with β-carotene significantly attenuates these effects. Our findings support the proposal that β-carotene has anti-cancer activity by reducing NADPH oxidase-mediated production of ROS, NF-κB activation and NF-κB-regulated TRAF1 and TRAF2 gene expression, and hyper-proliferation in AGS cells. We suggest that the consumption of β-carotene-enriched foods could decrease the incidence of H. pylori-associated gastric disorders.
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59
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Thakur B, Kumar Y, Bhatia A. Programmed necrosis and its role in management of breast cancer. Pathol Res Pract 2019; 215:152652. [PMID: 31570277 DOI: 10.1016/j.prp.2019.152652] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/12/2019] [Accepted: 09/16/2019] [Indexed: 02/06/2023]
Abstract
Breast cancer is one of the major causes of cancer related deaths in women worldwide. A major factor responsible for treatment failure in breast cancer is the development of resistance to commonly used chemotherapeutic drugs leading to disease relapse. Several studies have shown dysregulation of molecular machinery of apoptosis, the major programmed cell death pathway in breast malignancies. Thus, there is an unmet need to search for an alternative cell death pathway which can work when apoptosis is compromised. Necroptosis or programmed necrosis is a relatively recently described entity which has attracted attention in this context. Classically, even in physiological conditions necroptosis is found to act if apoptosis is not functional due to some reason. Recently, more and more studies are being conducted in different malignancies to explore the possibility and utility of inducing cell death by necroptosis. The present review describes the key molecular players involved in necroptotic pathway and their status in breast cancer. In addition, the research done to utilize this pathway for treatment of breast cancer has also been highlighted.
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Affiliation(s)
- Banita Thakur
- Department of Experimental Medicine & Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Yashwant Kumar
- Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Alka Bhatia
- Department of Experimental Medicine & Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
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60
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Tumour Necrosis Factor Alpha in Intestinal Homeostasis and Gut Related Diseases. Int J Mol Sci 2019; 20:ijms20081887. [PMID: 30995806 PMCID: PMC6515381 DOI: 10.3390/ijms20081887] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/05/2019] [Accepted: 04/13/2019] [Indexed: 02/06/2023] Open
Abstract
The intestinal epithelium constitutes an indispensable single-layered barrier to protect the body from invading pathogens, antigens or toxins. At the same time, beneficial nutrients and water have to be absorbed by the epithelium. To prevent development of intestinal inflammation or tumour formation, intestinal homeostasis has to be tightly controlled and therefore a strict balance between cell death and proliferation has to be maintained. The proinflammatory cytokine tumour necrosis factor alpha (TNFα) was shown to play a striking role for the regulation of this balance in the gut. Depending on the cellular conditions, on the one hand TNFα is able to mediate cell survival by activating NFκB signalling. On the other hand, TNFα might trigger cell death, in particular caspase-dependent apoptosis but also caspase-independent programmed necrosis. By regulating these cell death and survival mechanisms, TNFα exerts a variety of beneficial functions in the intestine. However, TNFα signalling is also supposed to play a critical role for the pathogenesis of inflammatory bowel disease (IBD), infectious diseases, intestinal wound healing and tumour formation. Here we review the literature about the physiological and pathophysiological role of TNFα signalling for the maintenance of intestinal homeostasis and the benefits and difficulties of anti-TNFα treatment during IBD.
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61
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Annibaldi A, Wicky John S, Vanden Berghe T, Swatek KN, Ruan J, Liccardi G, Bianchi K, Elliott PR, Choi SM, Van Coillie S, Bertin J, Wu H, Komander D, Vandenabeele P, Silke J, Meier P. Ubiquitin-Mediated Regulation of RIPK1 Kinase Activity Independent of IKK and MK2. Mol Cell 2019; 69:566-580.e5. [PMID: 29452637 PMCID: PMC5823975 DOI: 10.1016/j.molcel.2018.01.027] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 12/11/2017] [Accepted: 01/19/2018] [Indexed: 10/25/2022]
Abstract
Tumor necrosis factor (TNF) can drive inflammation, cell survival, and death. While ubiquitylation-, phosphorylation-, and nuclear factor κB (NF-κB)-dependent checkpoints suppress the cytotoxic potential of TNF, it remains unclear whether ubiquitylation can directly repress TNF-induced death. Here, we show that ubiquitylation regulates RIPK1's cytotoxic potential not only via activation of downstream kinases and NF-kB transcriptional responses, but also by directly repressing RIPK1 kinase activity via ubiquitin-dependent inactivation. We find that the ubiquitin-associated (UBA) domain of cellular inhibitor of apoptosis (cIAP)1 is required for optimal ubiquitin-lysine occupancy and K48 ubiquitylation of RIPK1. Independently of IKK and MK2, cIAP1-mediated and UBA-assisted ubiquitylation suppresses RIPK1 kinase auto-activation and, in addition, marks it for proteasomal degradation. In the absence of a functional UBA domain of cIAP1, more active RIPK1 kinase accumulates in response to TNF, causing RIPK1 kinase-mediated cell death and systemic inflammatory response syndrome. These results reveal a direct role for cIAP-mediated ubiquitylation in controlling RIPK1 kinase activity and preventing TNF-mediated cytotoxicity.
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Affiliation(s)
- Alessandro Annibaldi
- The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK.
| | - Sidonie Wicky John
- The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | - Tom Vanden Berghe
- VIB Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kirby N Swatek
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, UK
| | - Jianbin Ruan
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Room 3024B, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Gianmaria Liccardi
- The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | - Katiuscia Bianchi
- The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK; Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Paul R Elliott
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, UK
| | - Sze Men Choi
- VIB Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Samya Van Coillie
- VIB Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - John Bertin
- Pattern Recognition Receptor DPU and Platform Technology and Science, GlaxoSmithKline, Collegeville Road, Collegeville, PA 19426, USA
| | - Hao Wu
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Room 3024B, 3 Blackfan Circle, Boston, MA 02115, USA
| | - David Komander
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, UK
| | - Peter Vandenabeele
- VIB Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - John Silke
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3050, Australia
| | - Pascal Meier
- The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK.
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62
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Dostert C, Grusdat M, Letellier E, Brenner D. The TNF Family of Ligands and Receptors: Communication Modules in the Immune System and Beyond. Physiol Rev 2019; 99:115-160. [DOI: 10.1152/physrev.00045.2017] [Citation(s) in RCA: 175] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The tumor necrosis factor (TNF) and TNF receptor (TNFR) superfamilies (TNFSF/TNFRSF) include 19 ligands and 29 receptors that play important roles in the modulation of cellular functions. The communication pathways mediated by TNFSF/TNFRSF are essential for numerous developmental, homeostatic, and stimulus-responsive processes in vivo. TNFSF/TNFRSF members regulate cellular differentiation, survival, and programmed death, but their most critical functions pertain to the immune system. Both innate and adaptive immune cells are controlled by TNFSF/TNFRSF members in a manner that is crucial for the coordination of various mechanisms driving either co-stimulation or co-inhibition of the immune response. Dysregulation of these same signaling pathways has been implicated in inflammatory and autoimmune diseases, highlighting the importance of their tight regulation. Investigation of the control of TNFSF/TNFRSF activities has led to the development of therapeutics with the potential to reduce chronic inflammation or promote anti-tumor immunity. The study of TNFSF/TNFRSF proteins has exploded over the last 30 yr, but there remains a need to better understand the fundamental mechanisms underlying the molecular pathways they mediate to design more effective anti-inflammatory and anti-cancer therapies.
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Affiliation(s)
- Catherine Dostert
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark; and Life Sciences Research Unit, Molecular Disease Mechanisms Group, University of Luxembourg, Belvaux, Luxembourg
| | - Melanie Grusdat
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark; and Life Sciences Research Unit, Molecular Disease Mechanisms Group, University of Luxembourg, Belvaux, Luxembourg
| | - Elisabeth Letellier
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark; and Life Sciences Research Unit, Molecular Disease Mechanisms Group, University of Luxembourg, Belvaux, Luxembourg
| | - Dirk Brenner
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark; and Life Sciences Research Unit, Molecular Disease Mechanisms Group, University of Luxembourg, Belvaux, Luxembourg
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63
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Abstract
The inhibitor of apoptosis proteins (IAPs) are a family of proteins that were chiefly known for their ability to inhibit apoptosis by blocking caspase activation or activity. Recent research has shown that cellular IAP1 (cIAP1), cIAP2, and X-linked IAP (XIAP) also regulate signaling by receptors of the innate immune system by ubiquitylating their substrates. These IAPs thereby act at the intersection of pathways leading to cell death and inflammation. Mutation of IAP genes can impair tissue homeostasis and is linked to several human diseases. Small-molecule IAP antagonists have been developed to treat certain malignant, infectious, and inflammatory diseases. Here, we will discuss recent advances in our understanding of the functions of cIAP1, cIAP2, and XIAP; the consequences of their mutation or dysregulation; and the therapeutic potential of IAP antagonist drugs.
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Affiliation(s)
- Najoua Lalaoui
- Cell Signalling and Cell Death, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, 3050, Australia
| | - David Lawrence Vaux
- Cell Signalling and Cell Death, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, 3050, Australia
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64
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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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65
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Sheng Y, Li F, Qin Z. TNF Receptor 2 Makes Tumor Necrosis Factor a Friend of Tumors. Front Immunol 2018; 9:1170. [PMID: 29892300 PMCID: PMC5985372 DOI: 10.3389/fimmu.2018.01170] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/09/2018] [Indexed: 12/23/2022] Open
Abstract
Tumor necrosis factor (TNF) is widely accepted as a tumor-suppressive cytokine via its ubiquitous receptor TNF receptor 1 (TNFR1). The other receptor, TNFR2, is not only expressed on some tumor cells but also on suppressive immune cells, including regulatory T cells and myeloid-derived suppressor cells. In contrast to TNFR1, TNFR2 diverts the tumor-inhibiting TNF into a tumor-advocating factor. TNFR2 directly promotes the proliferation of some kinds of tumor cells. Also activating immunosuppressive cells, it supports immune escape and tumor development. Hence, TNFR2 may represent a potential target of cancer therapy. Here, we focus on expression and role of TNFR2 in the tumor microenvironment. We summarize the recent progress in understanding how TNFR2-dependent mechanisms promote carcinogenesis and tumor growth and discuss the potential value of TNFR2 in cancer treatment.
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Affiliation(s)
- Yuqiao Sheng
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Feng Li
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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66
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RACK1/TRAF2 regulation of modulator of apoptosis-1 (MOAP-1). BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1865:684-694. [DOI: 10.1016/j.bbamcr.2018.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 02/14/2018] [Accepted: 02/18/2018] [Indexed: 01/23/2023]
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67
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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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68
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Leonard BC, Johnson DE. Signaling by cell surface death receptors: Alterations in head and neck cancer. Adv Biol Regul 2018; 67:170-178. [PMID: 29066276 PMCID: PMC5854325 DOI: 10.1016/j.jbior.2017.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 10/13/2017] [Accepted: 10/15/2017] [Indexed: 12/01/2022]
Abstract
Cell surface death receptors are members of the tumor necrosis factor receptor (TNFR) superfamily and mediate signals leading to the induction of apoptosis or necroptosis, as well as NF-κB-mediated cell survival. These biochemical processes play key roles in cell growth, development, tissue homeostasis, and immune responses. The downstream signaling complexes activated by different death receptors can differ significantly and are subject to multiple, distinct regulatory mechanisms. Dysregulation of signaling by the TNFR superfamily contributes to a variety of pathologic conditions, including defective immune responses and cancer. Caspase-8 signaling is important for mediating death receptor signals leading to either apoptosis or NF-κB activation. By contrast, inactivation of caspase-8 or loss of caspase-8 expression shifts death receptor signaling to the necroptosis pathway. Notably, the gene encoding caspase-8 is mutated in roughly ten percent of head and neck cancers. These findings support the hypothesis that alterations in the biochemical pathways mediated by death receptors have important consequences for the development of head and neck, and possibly other, cancers.
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Affiliation(s)
- Brandon C Leonard
- Department of Otolaryngology - Head and Neck Surgery, University of California at San Francisco, San Francisco, CA, USA
| | - Daniel E Johnson
- Department of Otolaryngology - Head and Neck Surgery, University of California at San Francisco, San Francisco, CA, USA.
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69
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Sun HL, Wu YR, Song FF, Gan J, Huang LY, Zhang L, Huang C. Role of PCSK9 in the Development of Mouse Periodontitis Before and After Treatment: A Double-Edged Sword. J Infect Dis 2017; 217:667-680. [DOI: 10.1093/infdis/jix574] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 12/01/2017] [Indexed: 01/30/2023] Open
Affiliation(s)
- Hua Ling Sun
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Hubei, People’s Republic of China
| | - Yan Ru Wu
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Hubei, People’s Republic of China
| | - Fang Fang Song
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Hubei, People’s Republic of China
| | - Jing Gan
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Hubei, People’s Republic of China
| | - Li Yuan Huang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Hubei, People’s Republic of China
| | - Lu Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Hubei, People’s Republic of China
| | - Cui Huang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Hubei, People’s Republic of China
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70
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Rashidi M, Bandala-Sanchez E, Lawlor KE, Zhang Y, Neale AM, Vijayaraj SL, O'Donoghue R, Wentworth JM, Adams TE, Vince JE, Harrison LC. CD52 inhibits Toll-like receptor activation of NF-κB and triggers apoptosis to suppress inflammation. Cell Death Differ 2017; 25:392-405. [PMID: 29244050 DOI: 10.1038/cdd.2017.173] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 08/29/2017] [Accepted: 09/13/2017] [Indexed: 12/11/2022] Open
Abstract
Soluble CD52 is a small glycoprotein that suppresses T-cell activation, but its effect on innate immune cell function is unknown. Here we demonstrate that soluble CD52 inhibits Toll-like receptor and tumor necrosis factor receptor signaling to limit activation of NF-κB and thereby suppress the production of inflammatory cytokines by macrophages, monocytes and dendritic cells. At higher concentrations, soluble CD52 depletes the short-lived pro-survival protein MCL-1, contributing to activation of the BH3-only proteins BAX and BAK to cause intrinsic apoptotic cell death. In vivo, administration of soluble CD52 suppresses lipopolysaccharide (LPS)-induced cytokine secretion and other features of endotoxic shock, whereas genetic deletion of CD52 exacerbates LPS responses. Thus, soluble CD52 exhibits broad immune suppressive effects that signify its potential as an immunotherapeutic agent.
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Affiliation(s)
- Maryam Rashidi
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Esther Bandala-Sanchez
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Kate E Lawlor
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Yuxia Zhang
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Alana M Neale
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Swarna L Vijayaraj
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Robert O'Donoghue
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - John M Wentworth
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Timothy E Adams
- CSIRO Manufacturing and Node of the National Biologics Facility, Parkville, Victoria 3052, Australia
| | - James E Vince
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Leonard C Harrison
- The Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
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71
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Qu F, Xiang Z, Zhou Y, Qin Y. A molluscan TNF receptor-associated factor 2 (TRAF2) was involved in host defense against immune challenges. FISH & SHELLFISH IMMUNOLOGY 2017; 71:105-115. [PMID: 28986217 DOI: 10.1016/j.fsi.2017.09.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/23/2017] [Accepted: 09/29/2017] [Indexed: 06/07/2023]
Abstract
Tumor necrosis factor (TNF) receptor-associated factor 2 (TRAF2) is a member of the TRAF superfamily that acted as a key signal transduction protein and has been implicated in inflammatory and apoptosis processes in mammals. However, identification of TRAF2s in invertebrates is very limited and its function, in particular that under immune challenges, is still unknown. In this report, a molluscan TRAF2 gene (referred to as AwTRAF2) was cloned and characterized from the freshwater bivalve, Anodonta woodiana. The open reading frame (ORF) of AwTRAF2 was 1683 bp in length, which encoded a putative 560 amino acid-protein. The deduced AwTRAF2 sequence shared similar structural characteristics and close evolutionary relationship with mollusk TRAF2s. The tissue-specific expression analysis revealed that AwTRAF2 mRNA was broadly expressed in all tested tissues, with high expression in gill and hepatopancreas. In addition, in vivo injection experiments directly showed that AwTRAF2 mRNA levels in hepatopancreas were significantly up-regulated in response to bacterial pathogen (Vibrio alginolyticus and Staphylococcus aureus) and PAMPs (Lipopolysaccharides and Peptidoglycan) challenges. Moreover, fluorescence microscopy observations revealed that AwTRAF2 was mainly located in cytoplasm of HEK293T cells and its overexpression significantly increased the transcriptional activities of the NF-κB-Luc reporter gene in HEK293T cells. Taken together, this study provided the experimental evidence of the presence of a functional TRAF2 in freshwater bivalves, which revealed its involvement in host response to immune challenges in A. woodiana.
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Affiliation(s)
- Fufa Qu
- Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China; Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China.
| | - Zhiming Xiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Yingli Zhou
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Yanping Qin
- Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
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72
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Lafont E, Hartwig T, Walczak H. Paving TRAIL's Path with Ubiquitin. Trends Biochem Sci 2017; 43:44-60. [PMID: 29195774 DOI: 10.1016/j.tibs.2017.11.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/31/2017] [Accepted: 11/01/2017] [Indexed: 12/22/2022]
Abstract
Despite its name, signalling induced by the tumour necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is versatile. Besides eliciting cell death by both apoptosis and necroptosis, TRAIL can also induce migration, proliferation, and cytokine production in cancerous and non-cancerous cells. Unravelling the mechanisms regulating the intricate balance between these different outputs could therefore facilitate our understanding of the role of TRAIL in tissue homeostasis, immunity, and cancer. Ubiquitination and its reversal, deubiquitination, are crucial modulators of immune receptor signalling. This review discusses recent progress on the orchestration of TRAIL signalling outcomes by ubiquitination of various components of the signalling complexes, our understanding of the molecular switches that decide between cell death and gene activation, and what remains to be discovered.
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Affiliation(s)
- Elodie Lafont
- Centre for Cell Death, Cancer, and Inflammation, UCL Cancer Institute, University College London, 72 Huntley Street, London WC1E 6DD, UK; These authors contributed equally to this work
| | - Torsten Hartwig
- Centre for Cell Death, Cancer, and Inflammation, UCL Cancer Institute, University College London, 72 Huntley Street, London WC1E 6DD, UK; These authors contributed equally to this work
| | - Henning Walczak
- Centre for Cell Death, Cancer, and Inflammation, UCL Cancer Institute, University College London, 72 Huntley Street, London WC1E 6DD, UK.
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73
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Ivagnès A, Messaoudene M, Stoll G, Routy B, Fluckiger A, Yamazaki T, Iribarren K, Duong CPM, Fend L, Caignard A, Cremer I, LeCesne A, Adam J, Honoré C, Mir O, Chaigneau L, Berger A, Validire P, Christidis C, Brun-Ly VL, Smyth MJ, Mariette X, Salomon BL, Kroemer G, Rusakiewicz S, Zitvogel L. TNFR2/BIRC3-TRAF1 signaling pathway as a novel NK cell immune checkpoint in cancer. Oncoimmunology 2017; 7:e1386826. [PMID: 30524877 DOI: 10.1080/2162402x.2017.1386826] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/26/2017] [Accepted: 09/26/2017] [Indexed: 01/07/2023] Open
Abstract
Natural Killer (NK) cells control metastatic dissemination of murine tumors and are an important prognostic factor in several human malignancies. However, tumor cells hijack many of the NK cell functional features compromising their tumoricidal activity. Here, we show a deleterious role of the TNFα/TNFR2/BIRC3/TRAF1 signaling cascade in NK cells from the tumor microenvironment (TME). TNFα induces BIRC3/cIAP2 transcripts and reduces NKp46/NCR1 transcription and surface expression on NK cells, promoting metastases dissemination in mice and poor prognosis in GIST patients. NKp30 engagement, by promoting the release of TNFα, also contributes to BIRC3 upregulation, and more so in patients expressing predominantly NKp30C isoforms. These findings reveal that in the absence of IL-12 or a Th1-geared TME, TNFα can be considered as a negative regulatory cytokine for innate effectors.
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Affiliation(s)
- Alexandre Ivagnès
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,INSERM U1015, GRCC, Villejuif, France.,Université Paris Sud, Université Paris-Saclay, Faculté de Médecine, Le Kremlin Bicêtre, France
| | - Meriem Messaoudene
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,INSERM U1015, GRCC, Villejuif, France
| | - Gautier Stoll
- INSERM, U1138, Centre de Recherche des Cordeliers, Paris, France.,Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,Université Paris Descartes/Paris V, Sorbonne Paris Cité, 15 rue de l'Ecole de Médecine, Paris, France.,Université Pierre et Marie Curie, 15 rue de l'Ecole de Médecine, Paris, France
| | - Bertrand Routy
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,INSERM U1015, GRCC, Villejuif, France.,Université Paris Sud, Université Paris-Saclay, Faculté de Médecine, Le Kremlin Bicêtre, France
| | - Aurélie Fluckiger
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,INSERM U1015, GRCC, Villejuif, France
| | - Takahiro Yamazaki
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
| | - Kristina Iribarren
- INSERM, U1138, Centre de Recherche des Cordeliers, Paris, France.,Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,Université Paris Descartes/Paris V, Sorbonne Paris Cité, 15 rue de l'Ecole de Médecine, Paris, France
| | - Connie P M Duong
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,INSERM U1015, GRCC, Villejuif, France
| | | | - Anne Caignard
- INSERM, U1160, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Institut Universitaire d'Hématologie, Hôpital Saint Louis, Paris, France
| | - Isabelle Cremer
- INSERM, U1138, Centre de Recherche des Cordeliers, Paris, France.,Université Paris Descartes/Paris V, Sorbonne Paris Cité, 15 rue de l'Ecole de Médecine, Paris, France.,Université Pierre et Marie Curie, 15 rue de l'Ecole de Médecine, Paris, France
| | - Axel LeCesne
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Département d'oncologie médicale, GRCC, Villejuif, France
| | - Julien Adam
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Département d'anatomo-pathologie, GRCC, Villejuif, France.,INSERM U981, GRCC, Villejuif, France
| | - Charles Honoré
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Département de chirurgie, GRCC, Villejuif, France
| | - Olivier Mir
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Département d'oncologie médicale, GRCC, Villejuif, France
| | - Loïc Chaigneau
- Département d'oncologie médicale, Centre Hospitalier Universitaire Jean Minjoz, Besançon, France
| | - Anne Berger
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, 15 rue de l'Ecole de Médecine, Paris, France.,Département de chirurgie, Hôpital Européen Georges Pompidou, Paris, France
| | - Pierre Validire
- Département d'anatomo-pathologie, Institut Mutualiste Montsouris, Paris, France.,Département d'oncologie médicale, Sarcome, Institut Mutualiste Montsouris, Paris, France
| | - Christos Christidis
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, 15 rue de l'Ecole de Médecine, Paris, France.,Département d'oncologie médicale, Sarcome, Institut Mutualiste Montsouris, Paris, France.,Département de chirurgie, Institut Mutualiste Montsouris, Paris, France
| | - Valérie Le Brun-Ly
- Département d'oncologie médicale, Centre hospitalier régional universitaire de Limoges Dupuytren, Limoges, France
| | - Mark J Smyth
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Xavier Mariette
- Université Paris Sud, Université Paris-Saclay, Faculté de Médecine, Le Kremlin Bicêtre, France.,INSERM UMR 1184, Assistance Publique-Hôpitaux de Paris, Service de Rhumatologie, Hôpitaux Universitaires Paris-Sud, Le Kremlin Bicêtre, France
| | - Benoît L Salomon
- Sorbonne Universités, UPMC Univ Paris 06, INSERM, CNRS, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Guido Kroemer
- INSERM, U1138, Centre de Recherche des Cordeliers, Paris, France.,Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,Université Paris Descartes/Paris V, Sorbonne Paris Cité, 15 rue de l'Ecole de Médecine, Paris, France.,Université Pierre et Marie Curie, 15 rue de l'Ecole de Médecine, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, INSERM, CNRS, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France.,Pôle de Biologie, Hôpital Européen Georges Pompidou, Paris, France.,Plateforme de métabolomique et de biologie cellulaire, GRCC,Villejuif, France.,Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Sylvie Rusakiewicz
- Center of Experimental Therapeutics, Ludwig Center for Cancer Res, Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | - Laurence Zitvogel
- Institut de Cancérologie Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,INSERM U1015, GRCC, Villejuif, France.,Université Paris Sud, Université Paris-Saclay, Faculté de Médecine, Le Kremlin Bicêtre, France.,Centre d'investigation clinique en biothérapie des cancers (CICBT), Villejuif, France
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74
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Up-regulation of TRAF2 Suppresses Neuronal Apoptosis after Rat Spinal Cord Injury. Tissue Cell 2017; 49:589-596. [DOI: 10.1016/j.tice.2017.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 08/06/2017] [Accepted: 08/07/2017] [Indexed: 11/19/2022]
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75
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Asatryan A, Bazan NG. Molecular mechanisms of signaling via the docosanoid neuroprotectin D1 for cellular homeostasis and neuroprotection. J Biol Chem 2017; 292:12390-12397. [PMID: 28615451 PMCID: PMC5535015 DOI: 10.1074/jbc.r117.783076] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Docosahexaenoic acid, enriched in the brain and retina, generates docosanoids in response to disruptions of cellular homeostasis. Docosanoids include neuroprotectin D1 (NPD1), which is decreased in the CA1 hippocampal area of patients with early-stage Alzheimer's disease (AD). We summarize here how NPD1 elicits neuroprotection by up-regulating c-REL, a nuclear factor (NF)-κB subtype that, in turn, enhances expression of BIRC3 (baculoviral inhibitor of apoptosis repeat-containing protein 3) in the retina and in experimental stroke, leading to neuroprotection. Elucidating the mechanisms of action of docosanoids will contribute to managing diseases, including stroke, AD, age-related macular degeneration, traumatic brain injury, Parkinson's disease, and other neurodegenerations.
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Affiliation(s)
- Aram Asatryan
- Neuroscience Center of Excellence, School of Medicine, Louisiana State University Health New Orleans, New Orleans, Louisiana 70112-2223
| | - Nicolas G Bazan
- Neuroscience Center of Excellence, School of Medicine, Louisiana State University Health New Orleans, New Orleans, Louisiana 70112-2223.
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76
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Xu G, Han X, Yuan G, An L, Du P. Screening for the protective effect target of deproteinized extract of calf blood and its mechanisms in mice with CCl4-induced acute liver injury. PLoS One 2017; 12:e0180899. [PMID: 28700704 PMCID: PMC5507287 DOI: 10.1371/journal.pone.0180899] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 06/22/2017] [Indexed: 01/24/2023] Open
Abstract
Liver injury is a common pathological basis of various liver diseases, and long-term liver injury is often an important initiation factor leading to liver fibrosis and even liver cirrhosis and hepatocellular carcinoma (HCC). It has been reported that deproteinized extract of calf blood (DECB) can inhibit the replication of hepatitis B virus and confers a protective effect on the liver after traumatic liver injury. However, few studies on the regulatory factors and mechanisms of DECB have been reported. In this current study, an acute mouse liver injury model was established with carbon tetrachloride (CCl4). The differentially expressed genes and related cell signal transduction pathways were screened using mRNA expression microarray. STEM software V1.3.6 was used for clustering gene functions, and the DAVID and KEGG databases were applied for the analysis. A total of 1355 differentially expressed genes were selected, among which nine were validated by RT-qPCR. The results showed that the Fas, IL1b, Pik3r1, Pik3r5, Traf2, Traf2, Csf2rb2, Map3k14, Pik3cd and Ppp3cc genes were involved in the regulation of DECB in an acute mouse liver injury model. Targets of the protective effects of DECB and its related mechanisms were found in mice with acute liver injury induced by carbon tetrachloride, which may provide an important theoretical basis for further DECB research.
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Affiliation(s)
- Guangyu Xu
- College of Pharmacy, Beihua University, Jilin, Jilin, China
| | - Xiao Han
- College of Pharmacy, Beihua University, Jilin, Jilin, China
| | - Guangxin Yuan
- College of Pharmacy, Beihua University, Jilin, Jilin, China
| | - Liping An
- College of Pharmacy, Beihua University, Jilin, Jilin, China
- * E-mail: (LA); (PD)
| | - Peige Du
- College of Pharmacy, Beihua University, Jilin, Jilin, China
- * E-mail: (LA); (PD)
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77
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Abstract
Inhibitor of apoptosis proteins (IAPs) are critical regulators of cell death and survival pathways. Mice lacking cIAP1 and either cIAP2 or XIAP die in utero, and myeloid lineage-specific deletion of all IAPs causes sterile inflammation, but their role in the skin is unknown. We generated epidermal-specific IAP-deficient mice and found that combined genetic deletion of cIAP1 (epidermal knockout [EKO]) in keratinocytes and ubiquitous cIAP2 deletion (cIap1EKO/EKO.cIap2-/-) caused profound skin inflammation and keratinocyte death, lethal by postpartum day 10. To investigate their role in skin homeostasis, we injected an IAP antagonist compound subcutaneously into wild-type and knockout mice. This induced a toxic epidermal necrolysis-like local inflammation, which mirrored the phenotype seen in cIap1EKO/EKO.cIap2-/- mice. Loss of one Ripk1 allele limited lesion formation and significantly extended the lifespan of cIap1EKO/EKO.cIap2-/- mice. cIAP activities are important for recruitment of LUBAC to signaling complexes, and loss of LUBAC component SHARPIN, induces dermatitis in mice. Consistent with this relationship between cIAPs and LUBAC, Ripk1 heterozygosity also protected against development of dermatitis in Sharpin-deficient mice. This work therefore refines our molecular understanding of inflammatory signaling in the skin and defines potential targets for treating skin inflammation.
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78
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Liu Y, Fan C, Zhang Y, Yu X, Wu X, Zhang X, Zhao Q, Zhang H, Xie Q, Li M, Li X, Ding Q, Ying H, Li D, Zhang H. RIP1 kinase activity-dependent roles in embryonic development of Fadd-deficient mice. Cell Death Differ 2017; 24:1459-1469. [PMID: 28574501 DOI: 10.1038/cdd.2017.78] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 04/06/2017] [Accepted: 04/26/2017] [Indexed: 12/13/2022] Open
Abstract
RIP1 is an essential regulator of TNF-induced signaling complexes mediating NF-κB activation, apoptosis and necroptosis. Loss of Rip1 rescues the embryonic lethality of Fadd or Caspase-8-deficient mice, even though the double knockout mice die shortly after birth like Rip1-deficient mice. Recent studies demonstrated that mice expressing RIP1 kinase-dead mutants developed normally and resisted necroptotic stimuli in vitro and in vivo. However, the impact of RIP1 kinase activity on Fadd-/- embryonic development remains unknown. Here, we engineered two RIP1 kinase inactive mutant mouse lines, a Rip1K45A/K45A mouse line as previously reported and a novel Rip1Δ/Δ mouse line with an altered P-loop in the kinase domain. While RIP1K45A could not rescue the embryonic lethality of Fadd-deficient mice at E11.5, RIP1Δ rescued lethality of Fadd-/- mice at E11.5 and Fadd-/-Rip1Δ/Δ mice eventually died at E16.5 due to excessive death of fetal liver cells and unregulated inflammation. Under necropotosis-inducing conditions, comparing to Rip1K45A/K45A cells, Rip1Δ/Δcells displayed reduced phosphorylation and oligomerization of RIP3 and MLKL, which lead to increased cell viability. Thus, our study provides genetic evidence that different kinase inactive mutations have distinct impacts on the embryogenesis of Fadd-deficient mice, which might attribute to their extents of protection on necroptosis signaling.
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Affiliation(s)
- Yongbo Liu
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Cunxian Fan
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Yifan Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Xianjun Yu
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China.,Department of Biochemistry, Hubei University of Medicine, Shiyan 442000, China
| | - Xiaoxia Wu
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Xixi Zhang
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Qun Zhao
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Haiwei Zhang
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Qun Xie
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China.,Department of Anesthesiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Ming Li
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Xiaoming Li
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Qiurong Ding
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Hao Ying
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Dali Li
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University (ECNU), Shanghai, China
| | - Haibing Zhang
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
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79
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The small molecule that packs a punch: ubiquitin-mediated regulation of RIPK1/FADD/caspase-8 complexes. Cell Death Differ 2017; 24:1196-1204. [PMID: 28574505 DOI: 10.1038/cdd.2017.67] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/01/2017] [Accepted: 04/03/2017] [Indexed: 12/12/2022] Open
Abstract
The mechanisms that underpin the production of small molecules and cytokines that lead to inflammation or programmed cell death are intricately intertwined. So much so that some of the proteins that contribute to the transcriptional up regulation of cytokines can switch their role in the right circumstances to generate cell death-inducing complexes. This entwinement is reflected in the fact that inflammation helps an organism fight pathogens and that therefore pathogens are under an evolutionary pressure to interfere with this process. Cell death is therefore a defensive measure that may serve to deny pathogens a host cell, expose pathogens to the immune system and also provide additional inflammatory information to the host. Clearly such a system must be tightly regulated and ubiquitylation is a post-translational protein modification that is at the heart of this regulation. In this review, we discuss the regulatory ubiquitin events that dictate the formation and activation of death-inducing complexes containing RIPK1/FADD/caspase-8, and examine how these events collectively determine cell fate.
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80
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Grabinger T, Bode KJ, Demgenski J, Seitz C, Delgado ME, Kostadinova F, Reinhold C, Etemadi N, Wilhelm S, Schweinlin M, Hänggi K, Knop J, Hauck C, Walles H, Silke J, Wajant H, Nachbur U, W Wei-Lynn W, Brunner T. Inhibitor of Apoptosis Protein-1 Regulates Tumor Necrosis Factor-Mediated Destruction of Intestinal Epithelial Cells. Gastroenterology 2017; 152:867-879. [PMID: 27889570 DOI: 10.1053/j.gastro.2016.11.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 10/25/2016] [Accepted: 11/16/2016] [Indexed: 01/03/2023]
Abstract
BACKGROUND AND AIMS Tumor necrosis factor (TNF) is a cytokine that promotes inflammation and contributes to pathogenesis of inflammatory bowel diseases. Unlike other cells and tissues, intestinal epithelial cells undergo rapid cell death upon exposure to TNF, by unclear mechanisms. We investigated the roles of inhibitor of apoptosis proteins (IAPs) in the regulation of TNF-induced cell death in the intestinal epithelium of mice and intestinal organoids. METHODS RNA from cell lines and tissues was analyzed by quantitative polymerase chain reaction, protein levels were analyzed by immunoblot assays. BIRC2 (also called cIAP1) was expressed upon induction from lentiviral vectors in young adult mouse colon (YAMC) cells. YAMC cells, the mouse colon carcinoma cell line MC38, the mouse macrophage cell line RAW 264.7, or mouse and human organoids were incubated with second mitochondrial activator of caspases (Smac)-mimetic compound LCL161 or recombinant TNF-like weak inducer of apoptosis (TNFSF12) along with TNF, and cell death was quantified. C57BL/6 mice with disruption of Xiap, Birc2 (encodes cIAP1), Birc3 (encodes cIAP2), Tnfrsf1a, or Tnfrsf1b (Tnfrsf1a and b encode TNF receptors) were injected with TNF or saline (control); liver and intestinal tissues were collected and analyzed for apoptosis induction by cleaved caspase 3 immunohistochemistry. We also measured levels of TNF and alanine aminotransferase in serum from mice. RESULTS YAMC cells, and mouse and human intestinal organoids, died rapidly in response to TNF. YAMC and intestinal crypts expressed lower levels of XIAP, cIAP1, cIAP2, and cFLIP than liver tissue. Smac-mimetics reduced levels of cIAP1 and XIAP in MC38 and YAMC cells, and Smac-mimetics and TNF-related weak inducer of apoptosis increased TNF-induced cell death in YAMC cells and organoids-most likely by sequestering and degrading cIAP1. Injection of TNF greatly increased levels of cell death in intestinal tissue of cIAP1-null mice, compared with wild-type C57BL/6 mice, cIAP2-null mice, or XIAP-null mice. Excessive TNF-induced cell death in the intestinal epithelium was mediated TNF receptor 1. CONCLUSIONS In a study of mouse and human cell lines, organoids, and tissues, we found cIAP1 to be required for regulation of TNF-induced intestinal epithelial cell death and survival. These findings have important implications for the pathogenesis of TNF-mediated enteropathies and chronic inflammatory diseases of the intestine.
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Affiliation(s)
- Thomas Grabinger
- Biochemical Pharmacology, Department of Biology, University of Konstanz, Germany
| | - Konstantin J Bode
- Biochemical Pharmacology, Department of Biology, University of Konstanz, Germany
| | - Janine Demgenski
- Biochemical Pharmacology, Department of Biology, University of Konstanz, Germany
| | - Carina Seitz
- Biochemical Pharmacology, Department of Biology, University of Konstanz, Germany
| | - M Eugenia Delgado
- Biochemical Pharmacology, Department of Biology, University of Konstanz, Germany
| | - Feodora Kostadinova
- Biochemical Pharmacology, Department of Biology, University of Konstanz, Germany
| | - Cindy Reinhold
- Biochemical Pharmacology, Department of Biology, University of Konstanz, Germany
| | - Nima Etemadi
- Cell Signaling and Cell Death Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia
| | - Sabine Wilhelm
- Department of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Matthias Schweinlin
- Department of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Kay Hänggi
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Janin Knop
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Christof Hauck
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Heike Walles
- Department of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, Würzburg, Germany; Translational Center Würzburg, Würzburg branch of the Fraunhofer IGB, Würzburg, Germany
| | - John Silke
- Cell Signaling and Cell Death Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia
| | - Harald Wajant
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital Würzburg, Germany
| | - Ueli Nachbur
- Cell Signaling and Cell Death Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia
| | - Wong W Wei-Lynn
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Thomas Brunner
- Biochemical Pharmacology, Department of Biology, University of Konstanz, Germany.
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81
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82
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Feltham R, Vince JE, Lawlor KE. Caspase-8: not so silently deadly. Clin Transl Immunology 2017; 6:e124. [PMID: 28197335 PMCID: PMC5292560 DOI: 10.1038/cti.2016.83] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/27/2016] [Accepted: 11/29/2016] [Indexed: 12/22/2022] Open
Abstract
Apoptosis is a caspase-dependent programmed form of cell death, which is commonly believed to be an immunologically silent process, required for mammalian development and maintenance of cellular homoeostasis. In contrast, lytic forms of cell death, such as RIPK3- and MLKL-driven necroptosis, and caspase-1/11-dependent pyroptosis, are postulated to be inflammatory via the release of damage associated molecular patterns (DAMPs). Recently, the function of apoptotic caspase-8 has been extended to the negative regulation of necroptosis, the cleavage of inflammatory interleukin-1β (IL-1β) to its mature bioactive form, either directly or via the NLRP3 inflammasome, and the regulation of cytokine transcriptional responses. In view of these recent advances, human autoinflammatory diseases that are caused by mutations in cell death regulatory machinery are now associated with inappropriate inflammasome activation. In this review, we discuss the emerging crosstalk between cell death and innate immune cell inflammatory signalling, particularly focusing on novel non-apoptotic functions of caspase-8. We also highlight the growing number of autoinflammatory diseases that are associated with enhanced inflammasome function.
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Affiliation(s)
- Rebecca Feltham
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - James E Vince
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Kate E Lawlor
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
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83
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Guven-Maiorov E, Keskin O, Gursoy A, VanWaes C, Chen Z, Tsai CJ, Nussinov R. TRAF3 signaling: Competitive binding and evolvability of adaptive viral molecular mimicry. Biochim Biophys Acta Gen Subj 2016; 1860:2646-55. [PMID: 27208423 PMCID: PMC7117012 DOI: 10.1016/j.bbagen.2016.05.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 04/18/2016] [Accepted: 05/08/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND The tumor necrosis factor receptor (TNFR) associated factor 3 (TRAF3) is a key node in innate and adaptive immune signaling pathways. TRAF3 negatively regulates the activation of the canonical and non-canonical NF-κB pathways and is one of the key proteins in antiviral immunity. SCOPE OF REVIEW Here we provide a structural overview of TRAF3 signaling in terms of its competitive binding and consequences to the cellular network. For completion, we also include molecular mimicry of TRAF3 physiological partners by some viral proteins. MAJOR CONCLUSIONS By out-competing host partners, viral proteins aim to subvert TRAF3 antiviral action. Mechanistically, dynamic, competitive binding by the organism's own proteins and same-site adaptive pathogen mimicry follow the same conformational selection principles. GENERAL SIGNIFICANCE Our premise is that irrespective of the eliciting event - physiological or acquired pathogenic trait - pathway activation (or suppression) may embrace similar conformational principles. However, even though here we largely focus on competitive binding at a shared site, similar to physiological signaling other pathogen subversion mechanisms can also be at play. This article is part of a Special Issue entitled "System Genetics" Guest Editor: Dr. Yudong Cai and Dr. Tao Huang.
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Affiliation(s)
- Emine Guven-Maiorov
- Cancer and Inflammation Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, MD 21702,USA.
| | - Ozlem Keskin
- Department of Chemical and Biological Engineering, Koc University, Istanbul, Turkey; Center for Computational Biology and Bioinformatics, Koc University, Istanbul, Turkey.
| | - Attila Gursoy
- Center for Computational Biology and Bioinformatics, Koc University, Istanbul, Turkey; Department of Computer Engineering, Koc University, Istanbul, Turkey.
| | - Carter VanWaes
- Clinical Genomic Unit, Head and Neck Surgery Branch, National Institute on Deafness and Communication Disorders, NIH, Bethesda, MD 20892, USA.
| | - Zhong Chen
- Clinical Genomic Unit, Head and Neck Surgery Branch, National Institute on Deafness and Communication Disorders, NIH, Bethesda, MD 20892, USA.
| | - Chung-Jung Tsai
- Cancer and Inflammation Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, MD 21702,USA.
| | - Ruth Nussinov
- Cancer and Inflammation Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, MD 21702,USA; Sackler Inst. of Molecular Medicine, Department of Human Genetics and Molecular Medicine, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel.
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84
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Moriwaki K, Chan FKM. The Inflammatory Signal Adaptor RIPK3: Functions Beyond Necroptosis. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 328:253-275. [PMID: 28069136 DOI: 10.1016/bs.ircmb.2016.08.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Receptor interacting protein kinase 3 (RIPK3) is an essential serine/threonine kinase for necroptosis, a type of regulated necrosis. A variety of stimuli can cause RIPK3 activation through phosphorylation. Activated RIPK3 in turn phosphorylates and activates the downstream necroptosis executioner mixed lineage kinase domain-like (MLKL). Necroptosis is a highly inflammatory type of cell death because of the release of intracellular immunogenic contents from disrupted plasma membrane. Indeed, RIPK3-deficient mice exhibited reduced inflammation in many inflammatory disease models. These results have been interpreted as evidence that necroptosis is a key driver for RIPK3-induced inflammation. Interestingly, recent studies show that RIPK3 also regulates NF-κB, inflammasome activation, and kinase-independent apoptosis. These studies also reveal that these nonnecroptotic functions contribute significantly to disease pathogenesis. In this review, we summarize our current understanding of necroptotic and nonnecroptotic functions of RIPK3 and discuss how these effects contribute to RIPK3-mediated inflammation.
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Affiliation(s)
- K Moriwaki
- Department of Pathology, Immunology and Microbiology Program, University of Massachusetts Medical School, Worcester, MA, United States
| | - F K-M Chan
- Department of Pathology, Immunology and Microbiology Program, University of Massachusetts Medical School, Worcester, MA, United States.
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85
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TRAF2 multitasking in TNF receptor-induced signaling to NF-κB, MAP kinases and cell death. Biochem Pharmacol 2016; 116:1-10. [DOI: 10.1016/j.bcp.2016.03.009] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 03/14/2016] [Indexed: 12/15/2022]
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86
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Schlicher L, Wissler M, Preiss F, Brauns-Schubert P, Jakob C, Dumit V, Borner C, Dengjel J, Maurer U. SPATA2 promotes CYLD activity and regulates TNF-induced NF-κB signaling and cell death. EMBO Rep 2016; 17:1485-1497. [PMID: 27458237 DOI: 10.15252/embr.201642592] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/05/2016] [Indexed: 11/09/2022] Open
Abstract
K63- and Met1-linked ubiquitylation are crucial posttranslational modifications for TNF receptor signaling. These non-degradative ubiquitylations are counteracted by deubiquitinases (DUBs), such as the enzyme CYLD, resulting in an appropriate signal strength, but the regulation of this process remains incompletely understood. Here, we describe an interaction partner of CYLD, SPATA2, which we identified by a mass spectrometry screen. We find that SPATA2 interacts via its PUB domain with CYLD, while a PUB interaction motif (PIM) of SPATA2 interacts with the PUB domain of the LUBAC component HOIP SPATA2 is required for the recruitment of CYLD to the TNF receptor signaling complex upon TNFR stimulation. Moreover, SPATA2 acts as an allosteric activator for the K63- and M1-deubiquitinase activity of CYLD In consequence, SPATA2 substantially attenuates TNF-induced NF-κB and MAPK signaling. Conversely, SPATA2 is required for TNF-induced complex II formation, caspase activation, and apoptosis. Thus, this study identifies SPATA2 as an important factor in the TNF signaling pathway with a substantial role for the effects mediated by the cytokine.
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Affiliation(s)
- Lisa Schlicher
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, Germany Spemann Graduate School of Biology and Medicine (SGBM), Albert-Ludwigs-University of Freiburg, Freiburg, Germany BIOSS, Centre for Biological Signaling Studies, Freiburg, Germany
| | - Manuela Wissler
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Florian Preiss
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, Germany Spemann Graduate School of Biology and Medicine (SGBM), Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Prisca Brauns-Schubert
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, Germany Spemann Graduate School of Biology and Medicine (SGBM), Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Celia Jakob
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Veronica Dumit
- Core Facility Proteomics, Center for Biological Systems Analysis, Freiburg, Germany
| | - Christoph Borner
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, Germany Spemann Graduate School of Biology and Medicine (SGBM), Albert-Ludwigs-University of Freiburg, Freiburg, Germany BIOSS, Centre for Biological Signaling Studies, Freiburg, Germany
| | - Joern Dengjel
- BIOSS, Centre for Biological Signaling Studies, Freiburg, Germany Core Facility Proteomics, Center for Biological Systems Analysis, Freiburg, Germany
| | - Ulrich Maurer
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, Germany Spemann Graduate School of Biology and Medicine (SGBM), Albert-Ludwigs-University of Freiburg, Freiburg, Germany BIOSS, Centre for Biological Signaling Studies, Freiburg, Germany
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87
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Ting AT, Bertrand MJM. More to Life than NF-κB in TNFR1 Signaling. Trends Immunol 2016; 37:535-545. [PMID: 27424290 DOI: 10.1016/j.it.2016.06.002] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 06/03/2016] [Accepted: 06/08/2016] [Indexed: 12/20/2022]
Abstract
TNF is a master proinflammatory cytokine whose pathogenic role in inflammatory disorders has long been attributed to induction of proinflammatory mediators. TNF also activates cell survival and death pathways, and recent studies demonstrated that TNF also causes inflammation by inducing cell death. The default response of most cells to TNF is survival and NF-κB-mediated upregulation of prosurvival molecules is a well-documented protective mechanism downstream of TNFR1. Recent studies revealed the existence of an NF-κB-independent cell death checkpoint that restricts cell demise by inactivating RIPK1. Disruption of this checkpoint leads to RIPK1 kinase-dependent death and causes inflammation in vivo. These revelations bring complexity to the control of TNF-induced cell death, and suggest clinical benefit of RIPK1 inhibitors in TNF-driven human inflammatory disorders.
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Affiliation(s)
- Adrian T Ting
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Mathieu J M Bertrand
- Inflammation Research Center, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Belgium.
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88
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Shutinoski B, Alturki NA, Rijal D, Bertin J, Gough PJ, Schlossmacher MG, Sad S. K45A mutation of RIPK1 results in poor necroptosis and cytokine signaling in macrophages, which impacts inflammatory responses in vivo. Cell Death Differ 2016; 23:1628-37. [PMID: 27258786 DOI: 10.1038/cdd.2016.51] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 04/28/2016] [Accepted: 05/05/2016] [Indexed: 02/06/2023] Open
Abstract
Receptor interacting protein kinase 1 (RIPK1) participates in several cell signaling complexes that promote cell activation and cell death. Stimulation of RIPK1 in the absence of caspase signaling induces regulated necrosis (necroptosis), which promotes an inflammatory response. Understanding of the mechanisms through which RIPK1 promotes inflammation has been unclear. Herein we have evaluated the impact of a K45A mutation of RIPK1 on necroptosis of macrophages and the activation of inflammatory response. We show that K45A mutation of RIPK1 results in attenuated necroptosis of macrophages in response to stimulation with LPS, TNFα and IFNβ in the absence of caspase signaling. Impairment in necroptosis correlated with poor phosphorylation of RIPK1, RIPK3 and reduced trimerization of MLKL. Furthermore, K45A mutation of RIPK1 resulted in poor STAT1 phosphorylation (at S727) and expression of RANTES and MIP-1α following TNF-R engagement in the absence of caspase activation. Our results further indicate that in the absence of stimulation by pathogen-associated molecular patterns (PAMPs), cellular inhibitors of apoptotic proteins (cIAPs) prevent the K45-dependent auto-phosphorylation of RIPK1, leading to resistance against necroptosis. Finally, RIPK1(K45A) mice displayed attenuated inflammatory response in vivo as they were significantly resistant against endotoxin shock, but highly susceptible against a challenge with Salmonella typhimurium. This correlated with reduced expression of IL-1β and ROS, and poor processing of caspase 8 by RIPK1(K45A) macrophages. Overall, these results indicate that K45 mediated kinase activity of RIPK1 is not only important for necroptosis but it also has a key role in promoting cytokine signaling and host response to inflammatory stimuli.
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Affiliation(s)
- B Shutinoski
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada.,Program in Neuroscience and Division of Neurology, The Ottawa Hospital, Ottawa, ON, Canada
| | - N A Alturki
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - D Rijal
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - J Bertin
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - P J Gough
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - M G Schlossmacher
- Program in Neuroscience and Division of Neurology, The Ottawa Hospital, Ottawa, ON, Canada
| | - S Sad
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
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89
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Dondelinger Y, Darding M, Bertrand MJM, Walczak H. Poly-ubiquitination in TNFR1-mediated necroptosis. Cell Mol Life Sci 2016; 73:2165-76. [PMID: 27066894 PMCID: PMC4887548 DOI: 10.1007/s00018-016-2191-4] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 03/18/2016] [Indexed: 11/28/2022]
Abstract
Tumor necrosis factor (TNF) is a master pro-inflammatory cytokine, and inappropriate TNF signaling is implicated in the pathology of many inflammatory diseases. Ligation of TNF to its receptor TNFR1 induces the transient formation of a primary membrane-bound signaling complex, known as complex I, that drives expression of pro-survival genes. Defective complex I activation results in induction of cell death, in the form of apoptosis or necroptosis. This switch occurs via internalization of complex I components and assembly and activation of secondary cytoplasmic death complexes, respectively known as complex II and necrosome. In this review, we discuss the crucial regulatory functions of ubiquitination—a post-translational protein modification consisting of the covalent attachment of ubiquitin, and multiples thereof, to target proteins—to the various steps of TNFR1 signaling leading to necroptosis.
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Affiliation(s)
- Yves Dondelinger
- Inflammation Research Center, VIB, Technologiepark 927, Zwijnaarde, 9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, Zwijnaarde, 9052, Ghent, Belgium
| | - Maurice Darding
- Centre for Cell Death, Cancer, and Inflammation (CCCI), UCL Cancer Institute, University College London, London, UK
| | - Mathieu J M Bertrand
- Inflammation Research Center, VIB, Technologiepark 927, Zwijnaarde, 9052, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, Zwijnaarde, 9052, Ghent, Belgium.
| | - Henning Walczak
- Centre for Cell Death, Cancer, and Inflammation (CCCI), UCL Cancer Institute, University College London, London, UK.
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90
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Saxena M, Busca A, Holcik M, Kumar A. Bacterial DNA Protects Monocytic Cells against HIV-Vpr-Induced Mitochondrial Membrane Depolarization. THE JOURNAL OF IMMUNOLOGY 2016; 196:3754-67. [PMID: 26969755 DOI: 10.4049/jimmunol.1402379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 02/19/2016] [Indexed: 12/26/2022]
Abstract
Monocytes and macrophages are important HIV reservoirs, as they exhibit marked resistance to apoptosis upon infection. However, the mechanism underlying resistance to apoptosis in these cells is poorly understood. Using HIV-viral protein R-52-96 aa peptide (Vpr), we show that primary monocytes and THP-1 cells treated with Vpr are highly susceptible to mitochondrial depolarization, but develop resistance following stimulation with bacterial DNA or CpG oligodeoxynucleotide. We have shown that Vpr-induced mitochondrial depolarization is mediated by TNFR-associated factor-1 (TRAF-1) and TRAF-2 degradation and subsequent activation of caspase-8, Bid, and Bax. To provide the mechanism governing such resistance to mitochondrial depolarization, our results show that prior stimulation with CpG oligodeoxynucleotide or Escherichia coli DNA prevented: 1) TRAF-1/2 downregulation; 2) activation of caspase-8, Bid, and Bax; and 3) subsequent mitochondrial depolarization and release of apoptosis-inducing factor and cytochrome c Furthermore, this protection was mediated by upregulation of antiapoptotic protein (c-IAP-2) through calmodulin-dependent kinase-II activation. Thus, c-IAP-2 may prevent Vpr-mediated mitochondrial depolarization through stabilizing TRAF-1/2 expression and sequential inhibition of caspase-8, Bid, and Bax.
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Affiliation(s)
- Mansi Saxena
- Department of Biochemistry, Microbiology and Immunology, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario K1H 8L1, Canada
| | - Aurelia Busca
- Department of Biochemistry, Microbiology and Immunology, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario K1H 8L1, Canada
| | - Martin Holcik
- Research Institute, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario K1H 8L1, Canada; and
| | - Ashok Kumar
- Department of Biochemistry, Microbiology and Immunology, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario K1H 8L1, Canada; Research Institute, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario K1H 8L1, Canada; and Department of Pathology and Laboratory Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario K1H 8L1, Canada
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91
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Rosebeck S, Lim MS, Elenitoba-Johnson KSJ, McAllister-Lucas LM, Lucas PC. API2-MALT1 oncoprotein promotes lymphomagenesis via unique program of substrate ubiquitination and proteolysis. World J Biol Chem 2016; 7:128-137. [PMID: 26981201 PMCID: PMC4768116 DOI: 10.4331/wjbc.v7.i1.128] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/16/2015] [Accepted: 12/08/2015] [Indexed: 02/05/2023] Open
Abstract
Lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) is the most common extranodal B cell tumor and accounts for 8% of non-Hodgkin’s lymphomas. Gastric MALT lymphoma is the best-studied example and is a prototypical neoplasm that occurs in the setting of chronic inflammation brought on by persistent infection or autoimmune disease. Cytogenetic abnormalities are commonly acquired during the course of disease and the most common is chromosomal translocation t(11;18)(q21;q21), which creates the API2-MALT1 fusion oncoprotein. t(11;18)-positive lymphomas can be clinically aggressive and have a higher rate of dissemination than t(11;18)-negative tumors. Many cancers, including MALT lymphomas, characteristically exhibit deregulated over-activation of cellular survival pathways, such as the nuclear factor-κB (NF-κB) pathway. Molecular characterization of API2-MALT1 has revealed it to be a potent activator of NF-κB, which is required for API2-MALT1-induced cellular transformation, however the mechanisms by which API2-MALT1 exerts these effects are only recently becoming apparent. The API2 moiety of the fusion binds tumor necrosis factor (TNF) receptor associated factor (TRAF) 2 and receptor interacting protein 1 (RIP1), two proteins essential for TNF receptor-induced NF-κB activation. By effectively mimicking ligand-bound TNF receptor, API2-MALT1 promotes TRAF2-dependent ubiquitination of RIP1, which then acts as a scaffold for nucleating and activating the canonical NF-κB machinery. Activation occurs, in part, through MALT1 moiety-dependent recruitment of TRAF6, which can directly modify NF-κB essential modulator, the principal downstream regulator of NF-κB. While the intrinsic MALT1 protease catalytic activity is dispensable for this canonical NF-κB signaling, it is critical for non-canonical NF-κB activation. In this regard, API2-MALT1 recognizes NF-κB inducing kinase (NIK), the essential upstream regulator of non-canonical NF-κB, and cleaves it to generate a stable, constitutively active fragment. Thus, API2-MALT1 harnesses multiple unique pathways to achieve deregulated NF-κB activation. Emerging data from our group and others have also detailed additional gain-of-function activities of API2-MALT1 that extend beyond NF-κB activation. Specifically, API2-MALT1 recruits and subverts multiple other signaling factors, including LIM domain and actin-binding protein 1 (LIMA1) and Smac/DIABLO. Like NIK, LIMA1 represents a unique substrate for API2-MALT1 protease activity, but unlike NIK, its cleavage sets in motion a major NF-κB-independent pathway for promoting oncogenesis. In this review, we highlight the most recent results characterizing these unique and diverse gain-of-function activities of API2-MALT1 and how they contribute to lymphomagenesis.
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92
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Zhang L, Blackwell K, Workman LM, Gibson-Corley KN, Olivier AK, Bishop GA, Habelhah H. TRAF2 exerts opposing effects on basal and TNFα-induced activation of the classic IKK complex in hematopoietic cells in mice. J Cell Sci 2016; 129:1455-67. [PMID: 26872784 DOI: 10.1242/jcs.180554] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 02/08/2016] [Indexed: 12/19/2022] Open
Abstract
The role of TRAF2 and TRAF5 in TNFα-induced NF-κB activation has become complicated owing to the accumulation of conflicting data. Here, we report that 7-day-old TRAF2-knockout (KO) and TRAF2 TRAF5 double KO (TRAF2/5-DKO) mice exhibit enhanced canonical IκB kinase (IKK) and caspase-8 activation in spleen and liver, and that subsequent knockout of TNFα suppresses the basal activity of caspase-8, but not of IKK. In primary TRAF2 KO and TRAF2/5-DKO cells, TNFα-induced immediate IKK activation is impaired, whereas delayed IKK activation occurs normally; as such, owing to elevated basal and TNFα-induced delayed IKK activation, TNFα stimulation leads to significantly increased induction of a subset of NF-κB-dependent genes in these cells. In line with this, both TRAF2 KO and TRAF2/5-DKO mice succumb to a sublethal dose of TNFα owing to increased expression of NF-κB target genes, diarrhea and bradypnea. Notably, depletion of IAP1 and IAP2 (also known as BIRC2 and BIRC3, respectively) also results in elevated basal IKK activation that is independent of autocrine TNFα production and that impairs TNFα-induced immediate IKK activation. These data reveal that TRAF2, IAP1 and IAP2, but not TRAF5, cooperatively regulate basal and TNFα-induced immediate IKK activation.
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Affiliation(s)
- Laiqun Zhang
- Department of Pathology, Carver College of Medicine, University of Iowa, and the Iowa City Veterans Affairs Medical Center, Iowa City, IA 52242, USA
| | - Ken Blackwell
- Department of Pathology, Carver College of Medicine, University of Iowa, and the Iowa City Veterans Affairs Medical Center, Iowa City, IA 52242, USA
| | - Lauren M Workman
- Department of Pathology, Carver College of Medicine, University of Iowa, and the Iowa City Veterans Affairs Medical Center, Iowa City, IA 52242, USA
| | - Katherine N Gibson-Corley
- Department of Pathology, Carver College of Medicine, University of Iowa, and the Iowa City Veterans Affairs Medical Center, Iowa City, IA 52242, USA
| | - Alicia K Olivier
- Department of Pathology, Carver College of Medicine, University of Iowa, and the Iowa City Veterans Affairs Medical Center, Iowa City, IA 52242, USA
| | - Gail A Bishop
- Department of Microbiology & Internal Medicine, Carver College of Medicine, University of Iowa, and the Iowa City Veterans Affairs Medical Center, Iowa City, IA 52242, USA
| | - Hasem Habelhah
- Department of Pathology, Carver College of Medicine, University of Iowa, and the Iowa City Veterans Affairs Medical Center, Iowa City, IA 52242, USA
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93
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Abstract
Necroptosis is a regulated form of necrosis, with the dying cell rupturing and releasing intracellular components that can trigger an innate immune response. Toll-like receptor 3 and 4 agonists, tumor necrosis factor, certain viral infections, or the T cell receptor can trigger necroptosis if the activity of the protease caspase-8 is compromised. Necroptosis signaling is modulated by the kinase RIPK1 and requires the kinase RIPK3 and the pseudokinase MLKL. Either RIPK3 deficiency or RIPK1 inhibition confers resistance in various animal disease models, suggesting that inflammation caused by necroptosis contributes to tissue damage and that inhibitors of these kinases could have therapeutic potential. Recent studies have revealed unexpected complexity in the regulation of cell death programs by RIPK1 and RIPK3 with the possibility that necroptosis is but one mechanism by which these kinases promote inflammation.
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Affiliation(s)
- Kim Newton
- Physiological Chemistry Department, Genentech, Inc., South San Francisco, California 94080;
| | - Gerard Manning
- Bioinformatics and Computational Biology Department, Genentech, Inc., South San Francisco, California 94080;
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94
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Huang B, Zhang L, Du Y, Li L, Tang X, Zhang G. Molecular characterization and functional analysis of tumor necrosis factor receptor-associated factor 2 in the Pacific oyster. FISH & SHELLFISH IMMUNOLOGY 2016; 48:12-9. [PMID: 26621757 DOI: 10.1016/j.fsi.2015.11.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 11/02/2015] [Accepted: 11/22/2015] [Indexed: 05/11/2023]
Abstract
Tumor necrosis factor receptor (TNFR)-associated factors (TRAFs) are a family of crucial adaptors, playing vital roles in mediating signal transduction in immune signaling pathways, including RIG-I-like receptor (RLR) signaling pathway. In the present study, a new TRAF family member (CgTRAF2) was identified in the Pacific oyster, Crassostrea gigas. Comparison and phylogenetic analysis revealed that CgTRAF2 could be a new member of the invertebrate TRAF2 family. Quantitative real-time PCR revealed that CgTRAF2 mRNA was highly expressed in the digestive gland, gills, and hemocytes, and it was significantly up-regulated after Vibrio alginolyticus and ostreid herpesvirus 1 (OsHV-1) challenge. The CgTRAF2 mRNA expression profile in different developmental stages of oyster larvae suggested that CgTRAF2 could function in early larval development. CgTRAF2 mRNA expression pattern, after the silence of CgMAVS (Mitochondrial Antiviral Signaling) -like, indicated that CgTRAF2 might function downstream of CgMAVS-like. Moreover, the subcellular localization analysis revealed that CgTRAF2 was localized in cytoplasm, and it may play predominately important roles in signal transduction. Collectively, these results demonstrated that CgTRAF2 might play important roles in the innate immunity and larval development of the Pacific oyster.
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Affiliation(s)
- Baoyu Huang
- National & Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Linlin Zhang
- National & Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Yishuai Du
- National & Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Li Li
- National & Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Xueying Tang
- National & Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guofan Zhang
- National & Local Joint Engineering Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
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95
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Etemadi N, Chopin M, Anderton H, Tanzer MC, Rickard JA, Abeysekera W, Hall C, Spall SK, Wang B, Xiong Y, Hla T, Pitson SM, Bonder CS, Wong WWL, Ernst M, Smyth GK, Vaux DL, Nutt SL, Nachbur U, Silke J. TRAF2 regulates TNF and NF-κB signalling to suppress apoptosis and skin inflammation independently of Sphingosine kinase 1. eLife 2015; 4. [PMID: 26701909 PMCID: PMC4769158 DOI: 10.7554/elife.10592] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 12/21/2015] [Indexed: 02/01/2023] Open
Abstract
TRAF2 is a component of TNF superfamily signalling complexes and plays an essential role in the regulation and homeostasis of immune cells. TRAF2 deficient mice die around birth, therefore its role in adult tissues is not well-explored. Furthermore, the role of the TRAF2 RING is controversial. It has been claimed that the atypical TRAF2 RING cannot function as a ubiquitin E3 ligase but counterclaimed that TRAF2 RING requires a co-factor, sphingosine-1-phosphate, that is generated by the enzyme sphingosine kinase 1, to function as an E3 ligase. Keratinocyte-specific deletion of Traf2, but not Sphk1 deficiency, disrupted TNF mediated NF-κB and MAP kinase signalling and caused epidermal hyperplasia and psoriatic skin inflammation. This inflammation was driven by TNF, cell death, non-canonical NF-κB and the adaptive immune system, and might therefore represent a clinically relevant model of psoriasis. TRAF2 therefore has essential tissue specific functions that do not overlap with those of Sphk1. DOI:http://dx.doi.org/10.7554/eLife.10592.001 Psoriasis is an inflammatory disorder that causes red, flaky patches of skin. The disease affects around 2% of the world’s population, and is most common in people of northern European descent. TNF is one of the key proteins in the development of psoriasis and drugs that inhibit TNF have been very successful in the treatment of this disease. However, these drugs are expensive and for unknown reasons at least 10% of patients do not respond to them. Attempts to develop better drugs for psoriasis would be assisted by an improved understanding of this disease in terms of the genes and proteins involved. Etemadi et al. set out to obtain a more detailed molecular understanding of this disease by developing new mouse models of the condition. Mice were genetically engineered such that a key gene was deleted specifically from the skin cells that form the main barrier to the environment. These mice demonstrated that defects in skin cells called keratinocytes, rather than defects in the immune response, could lead to a psoriasis-like disease. Etemadi et al. also showed that the skin cells with this genetic defect die in the presence of TNF and this cell death in mice caused a rapidly-appearing form of psoriasis. However, in the absence of TNF the mice still developed psoriasis, albeit more slowly. In this case, the condition was due to an excessive activation of a protein called NF-κB, which is known to play a role in maintaining balance in the immune system and in psoriasis. These findings reveal how keratinocytes, cell death and inflammation can directly contribute to psoriasis-like conditions in mice. The next challenge will be to determine whether these findings can be used to help patients with this condition. DOI:http://dx.doi.org/10.7554/eLife.10592.002
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Affiliation(s)
- Nima Etemadi
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia.,Olivia Newton-John Cancer Research Institute, Heidelberg, Australia.,School of Cancer Medicine, La Trobe University, Heidelberg, Australia
| | - Michael Chopin
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Holly Anderton
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Maria C Tanzer
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - James A Rickard
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Waruni Abeysekera
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Cathrine Hall
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Sukhdeep K Spall
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Bing Wang
- Center for Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Yuquan Xiong
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, United States
| | - Timothy Hla
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, United States
| | - Stuart M Pitson
- Centre for Cancer Biology, SA Pathology, Adelaide, Australia
| | | | - Wendy Wei-Lynn Wong
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Matthias Ernst
- Olivia Newton-John Cancer Research Institute, Heidelberg, Australia.,School of Cancer Medicine, La Trobe University, Heidelberg, Australia
| | - Gordon K Smyth
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Mathematics and Statistics, University of Melbourne, Parkville, Australia
| | - David L Vaux
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Stephen L Nutt
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Ueli Nachbur
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - John Silke
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Australia
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96
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Yu X, Deng Q, Li W, Xiao L, Luo X, Liu X, Yang L, Peng S, Ding Z, Feng T, Zhou J, Fan J, Bode AM, Dong Z, Liu J, Cao Y. Neoalbaconol induces cell death through necroptosis by regulating RIPK-dependent autocrine TNFα and ROS production. Oncotarget 2015; 6:1995-2008. [PMID: 25575821 PMCID: PMC4385831 DOI: 10.18632/oncotarget.3038] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 12/02/2015] [Indexed: 02/04/2023] Open
Abstract
Necroptosis/regulated necrosis is a caspase-independent, but receptor interacting protein kinase (RIPK)-dependent form of cell death. In previous studies, neoalbaconol (NA), a constituent extracted from Albatrellus confluens, was demonstrated to induce necroptosis in some cancer cell lines. The molecular mechanism of NA-induced necroptosis is described in this research study. We determined that NA-induced cell death is partly dependent on tumor necrosis factor α (TNFα) feed-forward signaling. More importantly, NA abolished the ubiquitination of RIPK1 by down-regulating E3 ubiquitin ligases, cellular inhibitors of apoptosis protein 1/2 (cIAP1/2) and TNFα receptor-associated factors (TRAFs). The suppression of RIPK1 ubiquitination induced the activation of the non-canonical nuclear factor-κB (NF-κB) pathway and stimulated the transcription of TNFα. Moreover, we also found that NA caused RIPK3-mediated reactive oxygen species (ROS) production and contribution to cell death. Taken together, these results suggested that two distinct mechanisms are involved in NA-induced necroptosis and include RIPK1/NF-κB-dependent expression of TNFα and RIPK3-dependent generation of ROS.
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Affiliation(s)
- Xinfang Yu
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Qipan Deng
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Wei Li
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Lanbo Xiao
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Xiangjian Luo
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Xiaolan Liu
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Lifang Yang
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Songling Peng
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Zhihui Ding
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, China
| | - Tao Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, China
| | - Jian Zhou
- Liver Cancer Institute, Liver Surgery Department, Zhongshan Hospital
| | - Jia Fan
- Liver Cancer Institute, Liver Surgery Department, Zhongshan Hospital
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Jikai Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, China
| | - Ya Cao
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
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97
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Albarbar B, Dunnill C, Georgopoulos NT. Regulation of cell fate by lymphotoxin (LT) receptor signalling: Functional differences and similarities of the LT system to other TNF superfamily (TNFSF) members. Cytokine Growth Factor Rev 2015; 26:659-71. [DOI: 10.1016/j.cytogfr.2015.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 05/10/2015] [Accepted: 05/13/2015] [Indexed: 12/11/2022]
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98
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Abstract
Several programmed lytic and necrotic-like cell death mechanisms have now been uncovered, including the recently described receptor interacting protein kinase-3 (RIPK3)-mixed lineage kinase domain-like (MLKL)-dependent necroptosis pathway. Genetic experiments have shown that programmed necrosis, including necroptosis, can play a pivotal role in regulating host-resistance against microbial infections. Alternatively, excess or unwarranted necroptosis may be pathological in autoimmune and autoinflammatory diseases. This review highlights the recent advances in our understanding of the post-translational control of RIPK3-MLKL necroptotic signaling. We discuss the critical function of phosphorylation in the execution of necroptosis, and highlight the emerging regulatory roles for several ubiquitin ligases and deubiquitinating enzymes. Finally, based on current evidence, we discuss the potential mechanisms by which the essential, and possibly terminal, necroptotic effector, MLKL, triggers the disruption of cellular membranes to cause cell lysis.
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Affiliation(s)
- James M Murphy
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - James E Vince
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
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99
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Kocab AJ, Duckett CS. Inhibitor of apoptosis proteins as intracellular signaling intermediates. FEBS J 2015; 283:221-31. [PMID: 26462035 DOI: 10.1111/febs.13554] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 09/08/2015] [Accepted: 10/09/2015] [Indexed: 01/20/2023]
Abstract
Inhibitor of apoptosis (IAP) proteins have often been considered inhibitors of cell death due to early reports that described their ability to directly bind and inhibit caspases, the primary factors that implement apoptosis. However, a greater understanding is evolving regarding the vital roles played by IAPs as transduction intermediates in a diverse set of signaling cascades associated with functions ranging from the innate immune response to cell migration to cell-cycle regulation. In this review, we discuss the functions of IAPs in signaling, focusing primarily on the cellular IAP (c-IAP) proteins. The c-IAPs are important components in tumor necrosis factor receptor superfamily signaling cascades, which include activation of the NF-κB transcription factor family. As these receptors modulate cell proliferation and cell death, the involvement of the c-IAPs in these pathways provides an additional means of controlling cellular fate beyond simply inhibiting caspase activity. Additionally, IAP-binding proteins, such as Smac and caspases, which have been described as having cell death-independent roles, may affect c-IAP activity in intracellular signaling. Collectively, the multi-faceted functions and complex regulation of the c-IAPs illustrate their importance as intracellular signaling intermediates.
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Affiliation(s)
- Andrew J Kocab
- Graduate Program in Immunology, The University of Michigan, Ann Arbor, MI, USA.,Department of Pathology, The University of Michigan, Ann Arbor, MI, USA
| | - Colin S Duckett
- Department of Pathology, The University of Michigan, Ann Arbor, MI, USA.,Department of Internal Medicine, The University of Michigan, Ann Arbor, MI, USA
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100
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Geserick P, Wang J, Schilling R, Horn S, Harris PA, Bertin J, Gough PJ, Feoktistova M, Leverkus M. Absence of RIPK3 predicts necroptosis resistance in malignant melanoma. Cell Death Dis 2015; 6:e1884. [PMID: 26355347 PMCID: PMC4650439 DOI: 10.1038/cddis.2015.240] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/07/2015] [Accepted: 07/13/2015] [Indexed: 12/14/2022]
Abstract
Acquired or intrinsic resistance to apoptotic and necroptotic stimuli is considered a major hindrance of therapeutic success in malignant melanoma. Inhibitor of apoptosis proteins (IAPs) are important regulators of apoptotic and necroptotic cell death mediated by numerous cell death signalling platforms. In this report we investigated the impact of IAPs for cell death regulation in malignant melanoma. Suppression of IAPs strongly sensitized a panel of melanoma cells to death ligand-induced cell death, which, surprisingly, was largely mediated by apoptosis, as it was completely rescued by addition of caspase inhibitors. Interestingly, the absence of necroptosis signalling correlated with a lack of receptor-interacting protein kinase-3 (RIPK3) mRNA and protein expression in all cell lines, whereas primary melanocytes and cultured nevus cells strongly expressed RIPK3. Reconstitution of RIPK3, but not a RIPK3-kinase dead mutant in a set of melanoma cell lines overcame CD95L/IAP antagonist-induced necroptosis resistance independent of autocrine tumour necrosis factor secretion. Using specific inhibitors, functional studies revealed that RIPK3-mediated mixed-lineage kinase domain-like protein (MLKL) phosphorylation and necroptosis induction critically required receptor-interacting protein kinase-1 signalling. Furthermore, the inhibitor of mutant BRAF Dabrafenib, but not Vemurafenib, inhibited necroptosis in melanoma cells whenever RIPK3 is present. Our data suggest that loss of RIPK3 in melanoma and selective inhibition of the RIPK3/MLKL axis by BRAF inhibitor Dabrafenib, but not Vemurafenib, is critical to protect from necroptosis. Strategies that allow RIPK3 expression may allow unmasking the necroptotic signalling machinery in melanoma and points to reactivation of this pathway as a treatment option for metastatic melanoma.
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Affiliation(s)
- P Geserick
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany
| | - J Wang
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany.,Department for Dermatology and Allergology, University Hospital Aachen, RWTH Aachen, Aachen, Germany
| | - R Schilling
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany
| | - S Horn
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany
| | - P A Harris
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - J Bertin
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - P J Gough
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - M Feoktistova
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany.,Department for Dermatology and Allergology, University Hospital Aachen, RWTH Aachen, Aachen, Germany
| | - M Leverkus
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany.,Department for Dermatology and Allergology, University Hospital Aachen, RWTH Aachen, Aachen, Germany
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