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de Vasconcelos NM, Van Opdenbosch N, Lamkanfi M. Inflammasomes as polyvalent cell death platforms. Cell Mol Life Sci 2016; 73:2335-47. [PMID: 27048821 PMCID: PMC11108487 DOI: 10.1007/s00018-016-2204-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 03/18/2016] [Indexed: 02/07/2023]
Abstract
Inflammasomes are multi-protein platforms that are organized in the cytosol to cope with pathogens and cellular stress. The pattern recognition receptors NLRP1, NLRP3, NLRC4, AIM2 and Pyrin all assemble canonical platforms for caspase-1 activation, while caspase-11-dependent inflammasomes respond to intracellular Gram-negative pathogens. Inflammasomes are chiefly known for their roles in maturation and secretion of the inflammatory cytokines interleukin-(IL)1β and IL18, but they can also induce regulated cell death. Activation of caspases 1 and 11 in myeloid cells can trigger pyroptosis, a lytic and inflammatory cell death mode. Pyroptosis has been implicated in secretion of IL1β, IL18 and intracellular alarmins. Akin to these factors, it may have beneficial roles in controlling pathogen replication, but become detrimental in the context of chronic autoinflammatory diseases. Inflammasomes are increasingly implicated in induction of additional regulated cell death modes such as pyronecrosis and apoptosis. In this review, we overview recent advances in inflammasome-associated cell death research, illustrating the polyvalent roles of these macromolecular platforms in regulated cell death signaling.
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Affiliation(s)
- Nathalia M de Vasconcelos
- NOD-like Receptor and Inflammasome Laboratory, Inflammation Research Center, VIB, Technologiepark 927, B-9052, Zwijnaarde, Belgium
- Department of Internal Medicine, Ghent University, B-9000, Ghent, Belgium
| | - Nina Van Opdenbosch
- NOD-like Receptor and Inflammasome Laboratory, Inflammation Research Center, VIB, Technologiepark 927, B-9052, Zwijnaarde, Belgium
- Department of Internal Medicine, Ghent University, B-9000, Ghent, Belgium
| | - Mohamed Lamkanfi
- NOD-like Receptor and Inflammasome Laboratory, Inflammation Research Center, VIB, Technologiepark 927, B-9052, Zwijnaarde, Belgium.
- Department of Internal Medicine, Ghent University, B-9000, Ghent, Belgium.
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NLRP3 inflammasome plays a redundant role with caspase 8 to promote IL-1β-mediated osteomyelitis. Proc Natl Acad Sci U S A 2016; 113:4452-7. [PMID: 27071119 DOI: 10.1073/pnas.1601636113] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Missense mutation in the proline-serine-threonine phosphatase-interacting protein 2 (Pstpip2) gene results in the development of spontaneous chronic bone disease characterized by bone deformity and inflammation that is reminiscent of patients with chronic multifocal osteomyelitis (cmo). Interestingly, this disease is specifically mediated by IL-1β but not IL-1α. The precise molecular pathways that promote pathogenic IL-1β production inPstpip2(cmo)mice remain unidentified. Furthermore, how IL-1β provokes inflammatory bone disease inPstpip2(cmo)mice is not known. Here, we demonstrate that double deficiency of Nod like receptor family, pyrin domain containing 3 (NLRP3) and caspase 8 inPstpip2(cmo)mice provides similar protection as observed in caspase-1 and caspase-8-deficientPstpip2(cmo)mice, demonstrating redundant roles for the NLRP3 inflammasome and caspase 8 in provoking osteomyelitic disease inPstpip2(cmo)mice. Consistently, immunofluorescence studies exhibited distinct caspase-1 and caspase-8 puncta in diseasedPtpn6(spin)neutrophils. Data from our chimera studies demonstrated that IL-1β produced by hematopoietic cells is sensed by the radioresistant compartment to promote bone disease. Furthermore, our results showed that the IL-1β signaling is unidirectional and feedback signaling of IL-1β onto the hematopoietic compartment is not important for disease induction. In conclusion, our studies have uncovered the combined actions of the NLRP3 inflammasome and caspase 8 leading to IL-1β maturation and the directionality of IL-1β in driving disease inPstpip2(cmo)mice.
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Martin BN, Wang C, Zhang CJ, Kang Z, Gulen MF, Zepp JA, Zhao J, Bian G, Do JS, Min B, Pavicic PG, El-Sanadi C, Fox PL, Akitsu A, Iwakura Y, Sarkar A, Wewers MD, Kaiser WJ, Mocarski ES, Rothenberg ME, Hise AG, Dubyak GR, Ransohoff RM, Li X. T cell-intrinsic ASC critically promotes T(H)17-mediated experimental autoimmune encephalomyelitis. Nat Immunol 2016; 17:583-92. [PMID: 26998763 DOI: 10.1038/ni.3389] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 12/22/2015] [Indexed: 02/07/2023]
Abstract
Interleukin 1β (IL-1β) is critical for the in vivo survival, expansion and effector function of IL-17-producing helper T (T(H)17) cells during autoimmune responses, including experimental autoimmune encephalomyelitis (EAE). However, the spatiotemporal role and cellular source of IL-1β during EAE pathogenesis are poorly defined. In the present study, we uncovered a T cell-intrinsic inflammasome that drives IL-1β production during T(H)17-mediated EAE pathogenesis. Activation of T cell antigen receptors induced expression of pro-IL-1β, whereas ATP stimulation triggered T cell production of IL-1β via ASC-NLRP3-dependent caspase-8 activation. IL-1R was detected on T(H)17 cells but not on type 1 helper T (T(H)1) cells, and ATP-treated T(H)17 cells showed enhanced survival compared with ATP-treated T(H)1 cells, suggesting autocrine action of T(H)17-derived IL-1β. Together these data reveal a critical role for IL-1β produced by a T(H)17 cell-intrinsic ASC-NLRP3-caspase-8 inflammasome during inflammation of the central nervous system.
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Affiliation(s)
- Bradley N Martin
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA.,Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Chenhui Wang
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA.,Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Cun-jin Zhang
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA.,Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Department of Immunology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Zizhen Kang
- Shanghai Institute of Immunology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Muhammet Fatih Gulen
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Jarod A Zepp
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Junjie Zhao
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Guanglin Bian
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Jeong-su Do
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Booki Min
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Paul G Pavicic
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Caroline El-Sanadi
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Paul L Fox
- Department of Cellular and Molecular Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Aoi Akitsu
- Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki, Noda, Japan
| | - Yoichiro Iwakura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki, Noda, Japan
| | - Anasuya Sarkar
- Davis Heart and Lung Research Institute, Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Mark D Wewers
- Davis Heart and Lung Research Institute, Ohio State University College of Medicine, Columbus, Ohio, USA
| | - William J Kaiser
- Department of Microbiology and Immunology, Emory Vaccine Center, Atlanta, Georgia, USA
| | - Edward S Mocarski
- Department of Microbiology and Immunology, Emory Vaccine Center, Atlanta, Georgia, USA
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Amy G Hise
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio, USA
| | - George R Dubyak
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Richard M Ransohoff
- Department of Neurosciences, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Xiaoxia Li
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
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Wang Y, Kong H, Zeng X, Liu W, Wang Z, Yan X, Wang H, Xie W. Activation of NLRP3 inflammasome enhances the proliferation and migration of A549 lung cancer cells. Oncol Rep 2016; 35:2053-64. [PMID: 26782741 DOI: 10.3892/or.2016.4569] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 11/24/2015] [Indexed: 11/05/2022] Open
Abstract
Lung cancer is the leading cause of cancer death, and it is widely accepted that chronic inflammation is an important risk for the development of lung cancer. Now, it is recognized that the nucleotide-binding and oligomerization domain (NOD) like receptors (NLRs)-containing inflammasomes are involved in cancer-related inflammation. This study was designed to investigate the effects of NLR family pyrin domain containing protein 3 (NLRP3) inflammasome on the proliferation and migration of lung adenocarcinoma cell line A549. Using 5-ethynyl-2'-deoxyuridine (EdU) incorporation assay, scratch assay, and Transwell migration assay, we showed that activation of the NLRP3 inflammasome by LPS+ATP enhanced the proliferation and migration of A549 cells. Western blot analysis showed that activation of phosphorylation of Akt, ERK1/2, CREB and the expression of Snail increased, while the expression of E-cadherin decreased after the activation of NLRP3 inflammasome. Moreover, these effects were inhibited by the following treatments: i) downregulating the expression of NLRP3 by short hairpin RNA (shRNA) interference, ii) inhibiting the activation of NLRP3 inflammasome with a caspase-1 inhibitor, iii) blocking the interleukin-1β (IL-1β) and IL-18 signal transduction with IL-1 receptor antagonist (IL-1Ra) and IL-18 binding protein (IL-18BP). Collectively, these results indicate that NLRP3 inflammasome plays a vital role in regulating the proliferation and migration of A549 cells and it might be a potential target for the treatment of lung cancer.
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Affiliation(s)
- Yanli Wang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Hui Kong
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xiaoning Zeng
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Wenrui Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Zailiang Wang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xiaopei Yan
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Hong Wang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Weiping Xie
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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Monie TP, Bryant CE. Caspase-8 functions as a key mediator of inflammation and pro-IL-1β processing via both canonical and non-canonical pathways. Immunol Rev 2016; 265:181-93. [PMID: 25879293 DOI: 10.1111/imr.12284] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Caspase-8 is an apical component of cell death pathways. Activated caspase-8 can drive classical caspase-dependent apoptosis and actively inhibits cell death mediated by RIPK3-driven necroptosis. Genetic deletion of Casp8 results in embryonic lethality as a result of uncontrolled necroptosis. This lethality can be rescued by simultaneous deletion of Ripk3. Recently, caspase-8 has been additionally connected to inflammatory pathways within the cell. In particular, caspase-8 has been shown to be crucially involved in the induction of pro-IL-1β synthesis and processing via both non-canonical and canonical pathways. In this review, we bring together current knowledge regarding the role of caspase-8 in cellular inflammation with a particular emphasis on the interplay between caspase-8 and the classical and non-canonical inflammasomes.
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Affiliation(s)
- Tom P Monie
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
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56
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Lin QR, Li CG, Zha QB, Xu LH, Pan H, Zhao GX, Ouyang DY, He XH. Gossypol induces pyroptosis in mouse macrophages via a non-canonical inflammasome pathway. Toxicol Appl Pharmacol 2016; 292:56-64. [PMID: 26765310 DOI: 10.1016/j.taap.2015.12.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 12/10/2015] [Accepted: 12/31/2015] [Indexed: 02/07/2023]
Abstract
Gossypol, a polyphenolic compound isolated from cottonseeds, has been reported to possess many pharmacological activities, but whether it can influence inflammasome activation remains unclear. In this study, we found that in mouse macrophages, gossypol induced cell death characterized by rapid membrane rupture and robust release of HMGB1 and pro-caspase-11 comparable to ATP treatment, suggesting an induction of pyroptotic cell death. Unlike ATP, gossypol induced much low levels of mature interleukin-1β (IL-1β) secretion from mouse peritoneal macrophages primed with LPS, although it caused pro-IL-1β release similar to that of ATP. Consistent with this, activated caspase-1 responsible for pro-IL-1β maturation was undetectable in gossypol-treated peritoneal macrophages. Besides, RAW 264.7 cells lacking ASC expression and caspase-1 activation also underwent pyroptotic cell death upon gossypol treatment. In further support of pyroptosis induction, both pan-caspase inhibitor and caspase-1 subfamily inhibitor, but not caspase-3 inhibitor, could sharply suppress gossypol-induced cell death. Other canonical pyroptotic inhibitors, including potassium chloride and N-acetyl-l-cysteine, could suppress ATP-induced pyroptosis but failed to inhibit or even enhanced gossypol-induced cell death, whereas nonspecific pore-formation inhibitor glycine could attenuate this process, suggesting involvement of a non-canonical pathway. Of note, gossypol treatment eliminated thioglycollate-induced macrophages in the peritoneal cavity with recruitment of other leukocytes. Moreover, gossypol administration markedly decreased the survival of mice in a bacterial sepsis model. Collectively, these results suggested that gossypol induced pyroptosis in mouse macrophages via a non-canonical inflammasome pathway, which raises a concern for its in vivo cytotoxicity to macrophages.
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Affiliation(s)
- Qiu-Ru Lin
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Chen-Guang Li
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Qing-Bing Zha
- Department of Fetal Medicine, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - Li-Hui Xu
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Hao Pan
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Gao-Xiang Zhao
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Dong-Yun Ouyang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
| | - Xian-Hui He
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
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Westbom C, Thompson JK, Leggett A, MacPherson M, Beuschel S, Pass H, Vacek P, Shukla A. Inflammasome Modulation by Chemotherapeutics in Malignant Mesothelioma. PLoS One 2015; 10:e0145404. [PMID: 26689911 PMCID: PMC4687055 DOI: 10.1371/journal.pone.0145404] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/03/2015] [Indexed: 01/08/2023] Open
Abstract
Malignant mesothelioma (MM) is a fatal disease in dire need of therapy. The role of inflammasomes in cancer is not very well studied, however, literature supports both pro-and anti-tumorigenic effects of inflammasomes on cancer depending upon the type of cancer. Asbestos is a causative agent for MM and we have shown before that it causes inflammasome priming and activation in mesothelial cells. MM tumor cells/tissues showed decreased levels of inflammasome components like NLRP3 and caspase-1 as compared to human mesothelial cells or normal tissue counterpart of tumor. Based on our preliminary findings we hypothesized that treatment of MMs with chemotherapeutic drugs may elevate the levels of NLRP3 and caspase-1 resulting in increased cell death by pyroptosis while increasing the levels of IL-1β and other pro-inflammatory molecules. Therefore, a combined strategy of chemotherapeutic drug and IL-1R antagonist may play a beneficial role in MM therapy. To test our hypothesis we used two human MM tumor cell lines (Hmeso, H2373) and two chemotherapeutic drugs (doxorubicin, cisplatin). Through a series of experiments we showed that both chemotherapeutic drugs caused increases in NLRP3 levels, caspase-1 activation, pyroptosis and pro-inflammatory molecules released from MM cells. In vivo studies using SCID mice and Hmeso cells showed that tumors were smaller in combined treatment group of cisplatin and IL-1R antagonist (Anakinra) as compared to cisplatin alone or untreated control groups. Taken together our study suggests that chemotherapeutic drugs in combination with IL-1R antagonist may have a beneficial role in MM treatment.
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Affiliation(s)
- Catherine Westbom
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, United States of America
| | - Joyce K. Thompson
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, United States of America
| | - Alan Leggett
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, United States of America
| | - Maximilian MacPherson
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, United States of America
| | - Stacie Beuschel
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, United States of America
| | - Harvey Pass
- Department of Cardiothoracic Surgery, New York University School of Medicine, New York, New York, United States of America
| | - Pamela Vacek
- Department of Medical Biostatistics, University of Vermont College of Medicine, Burlington, VT, United States of America
| | - Arti Shukla
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, United States of America
- * E-mail:
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Converging roles of caspases in inflammasome activation, cell death and innate immunity. Nat Rev Immunol 2015; 16:7-21. [PMID: 26655628 DOI: 10.1038/nri.2015.7] [Citation(s) in RCA: 456] [Impact Index Per Article: 50.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Inflammatory and apoptotic caspases are central players in inflammation and apoptosis, respectively. However, recent studies have revealed that these caspases have functions beyond their established roles. In addition to mediating cleavage of the inflammasome-associated cytokines interleukin-1β (IL-1β) and IL-18, inflammatory caspases modulate distinct forms of programmed cell death and coordinate cell-autonomous immunity and other fundamental cellular processes. Certain apoptotic caspases assemble structurally diverse and dynamic complexes that direct inflammasome and interferon responses to fine-tune inflammation. In this Review, we discuss the expanding and interconnected roles of caspases that highlight new aspects of this family of cysteine proteases in innate immunity.
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Yu X, Gong H, Zhou Y, Zhang H, Cao J, Zhou J. Differential sialotranscriptomes of unfed and fed Rhipicephalus haemaphysaloides, with particular regard to differentially expressed genes of cysteine proteases. Parasit Vectors 2015; 8:597. [PMID: 26577685 PMCID: PMC4650922 DOI: 10.1186/s13071-015-1213-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 11/12/2015] [Indexed: 01/16/2023] Open
Abstract
Background Rhipicephalus haemaphysaloides, a hard tick, is a common ectoparasite and can be found in many countries. It is recognized as the primary vector of bovine babesiosis in the south of China. During blood feeding, the tick’s salivary glands secret numerous essential multifunctional proteins. In this study, a R. haemaphysaloides salivary gland transcriptome was described following the production and analysis of the transcripts from the two cDNA libraries of unfed and fed female ticks. The study focused on the differentially expressed genes and cysteine proteases, which play essential roles in the tick life cycle, that were detected most commonly in the up-regulation libraries. Methods The sialotranscriptome was assembled and analyzed though bioinformatic tools and the cysteine protease which is differentially expressed form sialotranscriptome were confirmed by Real-time PCR in salivary glands and different developments of ticks. Results On the basis of sequence similarities with other species in various databases, we analyzed the unfed and fed sialotranscriptome of R. haemaphysaloides to identify the differentially expressed proteins secreted from the salivary glands during blood feeding and to investigate their biological functions. There were 25,113 transcripts (35 % of the total assembled transcripts) that showed significant similarity to known proteins with high BLAST from other species annotated. In total, 88 % and 89 % of the sequencing reads could be mapped back to assembled sequences in the unfed and fed library, respectively. Comparison of the abundance of transcripts from similar contigs of the two salivary gland cDNA libraries allowed the identification of differentially expressed genes. In total, there were 1179 up-regulated genes and 574 down-regulated genes found by comparing the two libraries. Twenty-five predicted cysteine proteases were screened from the transcript databases, whereas only six protein molecules were confirmed by gene cloning and molecular expression in E.coli which all belonged to the cysteine protease family. Bioinformatic evolutionary analysis showed the relationship of cysteine proteases in ticks with those of other species, suggesting the origin and conservation of these genes. Analysis of sequences from different tick species indicated the further relationships among the proteases, suggesting the closely related function of these genes. Thus, we confirmed their changes in unfed, fed and engorged ticks and salivary glands. The dynamic changes revealed their important roles in the tick life cycle. Conclusions Our survey provided an insight into the R. haemaphysaloides sialotranscriptome. The dynamic changes of cysteine proteases in ticks will assist further study of these proteases, which may contribute to the development of anti-tick vaccines or drugs, as well as improving understanding of the roles of cysteine proteases in the tick life cycle. Electronic supplementary material The online version of this article (doi:10.1186/s13071-015-1213-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xinmao Yu
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China.
| | - Haiyan Gong
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China.
| | - Yongzhi Zhou
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China.
| | - Houshuang Zhang
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China.
| | - Jie Cao
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China.
| | - Jinlin Zhou
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China.
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60
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Chen M, Xing Y, Lu A, Fang W, Sun B, Chen C, Liao W, Meng G. Internalized Cryptococcus neoformans Activates the Canonical Caspase-1 and the Noncanonical Caspase-8 Inflammasomes. THE JOURNAL OF IMMUNOLOGY 2015; 195:4962-72. [PMID: 26466953 DOI: 10.4049/jimmunol.1500865] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 09/18/2015] [Indexed: 12/15/2022]
Abstract
Cryptococcus neoformans is an opportunistic fungal pathogen that causes cryptococcosis in immunocompromised patients as well as immunocompetent individuals. Host cell surface receptors that recognize C. neoformans have been widely studied. However, intracellular sensing of this pathogen is still poorly understood. Our previous studies have demonstrated that both biofilm and acapsular mutant of C. neoformans are able to activate the NOD-like receptor family, pyrin domain-containing 3 (NLRP3) inflammasome. In the current study, it was found that opsonization-mediated internalization of encapsulated C. neoformans also activated the canonical NLRP3-apoptosis-associated speck-like protein containing a CARD (ASC)-caspase-1 inflammasome. In addition, the internalized C. neoformans activated the noncanonical NLRP3-ASC-caspase-8 inflammasome as well, which resulted in robust IL-1β secretion and cell death from caspase-1-deficient primary dendritic cells. Interestingly, we found that caspase-1 was inhibitory for the activation of caspase-8 in dendritic cells upon C. neorformans challenge. Further mechanistic studies showed that both phagolysosome membrane permeabilization and potassium efflux were responsible for C. neoformans-induced activation of either the canonical NLRP3-ASC-caspase-1 inflammasome or the noncanonical NLRP3-ASC-caspase-8 inflammasome. Moreover, challenge with zymosan also led to the activation of the noncanonical NLRP3-ASC-caspase-8 inflammasome in cells absent for caspase-1. Collectively, these findings uncover a number of novel signaling pathways for the innate immune response of host cells to C. neoformans infection and suggest that manipulating NLRP3 signaling may help to control fungal challenge.
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Affiliation(s)
- Mingkuan Chen
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; and
| | - Yue Xing
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; and
| | - Ailing Lu
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; and
| | - Wei Fang
- Shanghai Key Laboratory of Molecular Medical Mycology, Changzheng Hospital, Shanghai 200003, China
| | - Bing Sun
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; and
| | - Changbin Chen
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; and
| | - Wanqing Liao
- Shanghai Key Laboratory of Molecular Medical Mycology, Changzheng Hospital, Shanghai 200003, China
| | - Guangxun Meng
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; and
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Rébé C, Ghiringhelli F. Cytotoxic effects of chemotherapy on cancer and immune cells: how can it be modulated to generate novel therapeutic strategies? Future Oncol 2015; 11:2645-2654. [PMID: 26376787 DOI: 10.2217/fon.15.198] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The first objective to use chemotherapy is to kill cancer cells. However, it is common knowledge that these drugs can also damage healthy host cells, especially immune cells, and thus impair the endogenous antitumor response. Here, we focus on the cytotoxic effects of chemotherapy on tumor cells and immune cells. It is not enough to simply kill cancer cells, and causing immunogenic cell death will impair the adaptive immune system's ability to fight the remaining cancer cells. On the other hand, the killing of immune cells can also enhance tumor growth. A study of the repercussions of the cytotoxic effects of chemotherapy is of great importance to evaluate the antitumor response. Strategies can be proposed to promote the 'good way' for cancer cells to die and to avoid the adverse side effects of chemotherapy on immune cells in order to strengthen the role of the immune system in the antitumor response.
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Affiliation(s)
- Cédric Rébé
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 866, Dijon, 21079, France.,Centre Georges François Leclerc, Dijon, 21000, France
| | - François Ghiringhelli
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 866, Dijon, 21079, France.,Centre Georges François Leclerc, Dijon, 21000, France.,Faculté de Médecine et de Pharmacie, Université de Bourgogne, Dijon, 21000, France
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Angelis D, Fontánez Nieves TD, Delivoria-Papadopoulos M. Temporal Changes in Caspase-1 and Caspase-8 Activities Following Brain Hypoxia With and Without Src kinase Inhibition in a Piglet Animal Model. Neurochem Res 2015; 40:2270-9. [PMID: 26342830 DOI: 10.1007/s11064-015-1717-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Revised: 08/08/2015] [Accepted: 09/01/2015] [Indexed: 12/16/2022]
Abstract
The Src family kinases are a family of intracellular, non-receptor tyrosine kinases that are involved in a variety of cellular functions including the regulation of inflammation and apoptosis after brain hypoxia. Caspase-1 (C1) activates IL-1β through the formation of complex structures, the inflammasomes, while caspase-8 (C8) is part of the extrinsic apoptotic pathway. C8 has been found to directly activate the production of IL-1β. Previously, we observed that C1 and IL-1β are increased in the acute phase after hypoxia in the brain of piglets, but they follow a different pattern long term, with C1 remaining activated throughout the period of observation, while IL-1β returning to baseline at 15 days. Src kinase inhibition ameliorated the activation of C1 and IL-1β early, but did not appear to have any effect long term. Prompted by these findings, we assessed the changes that occur over time (1 h and 15 days) in C1 and C8 activities after brain hypoxia as well as the effect of pretreatment with a Src kinase inhibitor, PP2 on these biochemical markers. Enzymatic activities were determined by spectrophotometry with measurements of C1 and C8 in each cytosolic brain sample (N = 4 in each group). We found that C1 and C8 activities increase in the acute phase following hypoxia in the brain of newborn piglets, with C8 relatively more than C1 (C8/C1 ratio increased from 2:1 as baseline to 3:1 in hypoxia). Fifteen days after hypoxia C8/C1 ratio decreased to about 1:1. In piglets that were pretreated with a Src kinase selective inhibitor (PP2) and then subjected to hypoxia, the C8/C1 ratio early increase was not observed. Immediately after hypoxia C8 and C1 follow a similar pattern of increase while long term this appears to dissociate. We propose that following this experimental methodology, the previously observed IL-1β production after hypoxia might be associated with C8 rather than C1 and that Src kinase is involved in the above process.
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Affiliation(s)
- Dimitrios Angelis
- Division of Neonatology, Department of Pediatrics, Texas Tech University Health Sciences Center, Odessa, TX, 79763, USA.
- Department of Pediatrics, Drexel University and St. Christopher's Hospital for Children, Philadelphia, PA, USA.
| | - Tania D Fontánez Nieves
- Department of Pediatrics, Miami Miller School of Medicine, Jackson Memorial Hospital, Miami, FL, USA
- Department of Pediatrics, Drexel University and St. Christopher's Hospital for Children, Philadelphia, PA, USA
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Antonopoulos C, Russo HM, El Sanadi C, Martin BN, Li X, Kaiser WJ, Mocarski ES, Dubyak GR. Caspase-8 as an Effector and Regulator of NLRP3 Inflammasome Signaling. J Biol Chem 2015; 290:20167-84. [PMID: 26100631 PMCID: PMC4536427 DOI: 10.1074/jbc.m115.652321] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/12/2015] [Indexed: 12/20/2022] Open
Abstract
We recently described the induction of noncanonical IL-1β processing via caspase-8 recruited to ripoptosome signaling platforms in myeloid leukocytes. Here, we demonstrate that activated NLRP3·ASC inflammasomes recruit caspase-8 to drive IL-1β processing in murine bone marrow-derived dendritic cells (BMDC) independent of caspase-1 and -11. Sustained stimulation (>2 h) of LPS-primed caspase-1-deficient (Casp1/11(-/-)) BMDC with the canonical NLRP3 inflammasome agonist nigericin results in release of bioactive IL-1β in conjunction with robust caspase-8 activation. This IL-1β processing and caspase-8 activation do not proceed in Nlrp3(-/-) or Asc(-/-) BMDC and are suppressed by pharmacological inhibition of caspase-8, indicating that caspase-8 can act as a direct IL-1β-converting enzyme during NLRP3 inflammasome activation. In contrast to the rapid caspase-1-mediated death of wild type (WT) BMDC via NLRP3-dependent pyroptosis, nigericin-stimulated Casp1/11(-/-) BMDC exhibit markedly delayed cell death via NLRP3-dependent apoptosis. Biochemical analyses of WT and Casp1/11(-/-) BMDC indicated that caspase-8 is proteolytically processed within detergent-insoluble ASC-enriched protein complexes prior to extracellular export during nigericin treatment. Although nigericin-stimulated caspase-1 activation and activity are only modestly attenuated in caspase-8-deficient (Casp8(-/-)Rip3(-/-)) BMDC, these cells do not exhibit the rapid loss of viability of WT cells. These results support a contribution of caspase-8 to both IL-1β production and regulated death signaling via NLRP3 inflammasomes. In the absence of caspase-1, NLRP3 inflammasomes directly utilize caspase-8 as both a pro-apoptotic initiator and major IL-1β-converting protease. In the presence of caspase-1, caspase-8 acts as a positive modulator of the NLRP3-dependent caspase-1 signaling cascades that drive both IL-1β production and pyroptotic death.
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Affiliation(s)
| | - Hana M Russo
- Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106
| | | | - Bradley N Martin
- Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, the Department of Immunology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, and
| | - Xiaoxia Li
- the Department of Immunology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, and
| | - William J Kaiser
- the Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, Georgia 30322
| | - Edward S Mocarski
- the Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, Georgia 30322
| | - George R Dubyak
- Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, From the Departments of Physiology and Biophysics and
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CHEN XI, XIE MINGXUAN, LIU DA, SHI KE. Downregulation of microRNA-146a inhibits ovarian granulosa cell apoptosis by simultaneously targeting interleukin-1 receptor-associated kinase and tumor necrosis factor receptor-associated factor 6. Mol Med Rep 2015; 12:5155-62. [DOI: 10.3892/mmr.2015.4036] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 05/13/2015] [Indexed: 11/06/2022] Open
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Silke J, Rickard JA, Gerlic M. The diverse role of RIP kinases in necroptosis and inflammation. Nat Immunol 2015; 16:689-97. [DOI: 10.1038/ni.3206] [Citation(s) in RCA: 337] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 05/22/2015] [Indexed: 12/14/2022]
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Afonina I, Müller C, Martin S, Beyaert R. Proteolytic Processing of Interleukin-1 Family Cytokines: Variations on a Common Theme. Immunity 2015; 42:991-1004. [DOI: 10.1016/j.immuni.2015.06.003] [Citation(s) in RCA: 260] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Indexed: 12/22/2022]
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Brough D, Denes A. Interleukin-1α and brain inflammation. IUBMB Life 2015; 67:323-30. [PMID: 25906979 DOI: 10.1002/iub.1377] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 03/16/2015] [Indexed: 12/12/2022]
Abstract
Acute brain injuries such as caused by stroke are amongst the leading causes of death and are the leading cause of disability. Despite this there are very limited therapeutic options, and new therapeutic strategies and targets are required. Inflammation is known to exacerbate brain injury and is now considered as a potential therapeutic target. The damaging inflammation that occurs after acute brain injury is driven by pro-inflammatory members of the interleukin (IL)-1 cytokine family, namely, IL-1α and IL-1β. Previous research efforts have focussed on the biology and contribution of IL-1β. However, we now recognise that IL-1α is an early and important mediator of inflammation after injury. This review focuses on what is known about IL-1α, its regulation and its contribution to brain injury. Inhibiting mechanisms regulating the processing and release of IL-1α may offer new therapeutic targets for the treatment of devastating acute brain injuries.
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Affiliation(s)
- David Brough
- Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - Adam Denes
- Faculty of Life Sciences, University of Manchester, Manchester, UK.,Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Budapest, Hungary
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Inflammasome-induced IL-1β secretion in microglia is characterized by delayed kinetics and is only partially dependent on inflammatory caspases. J Neurosci 2015; 35:678-87. [PMID: 25589762 DOI: 10.1523/jneurosci.2510-14.2015] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Inflammasomes are multiprotein complexes that link pathogen recognition and cellular stress to the processing of the proinflammatory cytokine interleukin-1β (IL-1β). Whereas inflammasome-mediated activation is heavily studied in hematopoietic macrophages and dendritic cells, much less is known about microglia, resident tissue macrophages of the brain that originate from a distinct progenitor. To directly compare inflammasome-mediated activation in different types of macrophages, we isolated primary microglia and hematopoietic macrophages from adult, healthy rhesus macaques. We analyzed the expression profile of NOD (nucleotide-binding oligomerization domain)-like receptors, adaptor proteins, and caspases and characterized inflammasome activation and regulation in detail. We here demonstrate that primary microglia can respond to the same innate stimuli as hematopoietic macrophages. However, microglial responses are more persistent due to lack of negative regulation on pro-IL-1β expression. In addition, we show that while caspase 1, 4, and 5 activation is pivotal for inflammasome-induced IL-1β secretion by hematopoietic macrophages, microglial secretion of IL-1β is only partially dependent on these inflammatory caspases. These results identify key cell type-specific differences that may aid the development of strategies to modulate innate immune responses in the brain.
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Omoto S, Guo H, Talekar GR, Roback L, Kaiser WJ, Mocarski ES. Suppression of RIP3-dependent necroptosis by human cytomegalovirus. J Biol Chem 2015; 290:11635-48. [PMID: 25778401 DOI: 10.1074/jbc.m115.646042] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Indexed: 12/23/2022] Open
Abstract
Necroptosis is an alternate programmed cell death pathway that is unleashed by caspase-8 compromise and mediated by receptor-interacting protein kinase 3 (RIP3). Murine cytomegalovirus (CMV) and herpes simplex virus (HSV) encode caspase-8 inhibitors that prevent apoptosis together with competitors of RIP homotypic interaction motif (RHIM)-dependent signal transduction to interrupt the necroptosis. Here, we show that pro-necrotic murine CMV M45 mutant virus drives virus-induced necroptosis during nonproductive infection of RIP3-expressing human fibroblasts, whereas WT virus does not. Thus, M45-encoded RHIM competitor, viral inhibitor of RIP activation, sustains viability of human cells like it is known to function in infected mouse cells. Importantly, human CMV is shown to block necroptosis induced by either TNF or M45 mutant murine CMV in RIP3-expressing human cells. Human CMV blocks TNF-induced necroptosis after RIP3 activation and phosphorylation of the mixed lineage kinase domain-like (MLKL) pseudokinase. An early, IE1-regulated viral gene product acts on a necroptosis step that follows MLKL phosphorylation prior to membrane leakage. This suppression strategy is distinct from RHIM signaling competition by murine CMV or HSV and interrupts an execution process that has not yet been fully elaborated.
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Affiliation(s)
- Shinya Omoto
- From the Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, Georgia 30322
| | - Hongyan Guo
- From the Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, Georgia 30322
| | - Ganesh R Talekar
- From the Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, Georgia 30322
| | - Linda Roback
- From the Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, Georgia 30322
| | - William J Kaiser
- From the Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, Georgia 30322
| | - Edward S Mocarski
- From the Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, Georgia 30322
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Katsnelson MA, Rucker LG, Russo HM, Dubyak GR. K+ efflux agonists induce NLRP3 inflammasome activation independently of Ca2+ signaling. THE JOURNAL OF IMMUNOLOGY 2015; 194:3937-52. [PMID: 25762778 DOI: 10.4049/jimmunol.1402658] [Citation(s) in RCA: 206] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 02/07/2015] [Indexed: 12/22/2022]
Abstract
Perturbation of intracellular ion homeostasis is a major cellular stress signal for activation of NLRP3 inflammasome signaling that results in caspase-1-mediated production of IL-1β and pyroptosis. However, the relative contributions of decreased cytosolic K(+) concentration versus increased cytosolic Ca(2+) concentration ([Ca(2+)]) remain disputed and incompletely defined. We investigated roles for elevated cytosolic [Ca(2+)] in NLRP3 activation and downstream inflammasome signaling responses in primary murine dendritic cells and macrophages in response to two canonical NLRP3 agonists (ATP and nigericin) that facilitate primary K(+) efflux by mechanistically distinct pathways or the lysosome-destabilizing agonist Leu-Leu-O-methyl ester. The study provides three major findings relevant to this unresolved area of NLRP3 regulation. First, increased cytosolic [Ca(2+)] was neither a necessary nor sufficient signal for the NLRP3 inflammasome cascade during activation by endogenous ATP-gated P2X7 receptor channels, the exogenous bacterial ionophore nigericin, or the lysosomotropic agent Leu-Leu-O-methyl ester. Second, agonists for three Ca(2+)-mobilizing G protein-coupled receptors (formyl peptide receptor, P2Y2 purinergic receptor, and calcium-sensing receptor) expressed in murine dendritic cells were ineffective as activators of rapidly induced NLRP3 signaling when directly compared with the K(+) efflux agonists. Third, the intracellular Ca(2+) buffer, BAPTA, and the channel blocker, 2-aminoethoxydiphenyl borate, widely used reagents for disruption of Ca(2+)-dependent signaling pathways, strongly suppressed nigericin-induced NLRP3 inflammasome signaling via mechanisms dissociated from their canonical or expected effects on Ca(2+) homeostasis. The results indicate that the ability of K(+) efflux agonists to activate NLRP3 inflammasome signaling can be dissociated from changes in cytosolic [Ca(2+)] as a necessary or sufficient signal.
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Affiliation(s)
| | - L Graham Rucker
- The Ohio State University College of Medicine, Columbus, OH 43210; and
| | - Hana M Russo
- Department of Pathology, Case Western Reserve University, Cleveland, OH 44106
| | - George R Dubyak
- Department of Physiology and Biophysics, Case Western Reserve University, Cleveland, OH 44106
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Yakut E, Jakobs C, Peric A, Michel G, Baal N, Bein G, Brüne B, Hornung V, Hackstein H. Extracorporeal photopheresis promotes IL-1β production. THE JOURNAL OF IMMUNOLOGY 2015; 194:2569-77. [PMID: 25681340 DOI: 10.4049/jimmunol.1400694] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Extracorporeal photopheresis (ECP) is a widely used clinical cell-based therapy exhibiting efficacy in heterogenous immune-mediated diseases such as cutaneous T cell lymphoma, graft-versus-host disease, and organ allograft rejection. Despite its documented efficacy in cancer immunotherapy, little is known regarding the induction of immunostimulatory mediators by ECP. In this article, we show that ECP promotes marked release of the prototypic immunostimulatory cytokine IL-1β. ECP primes IL-1β production and activates IL-1β maturation and release in the context of caspase-1 activation in monocytes and myeloid dendritic cells. Of interest, IL-1β maturation by ECP was fully intact in murine cells deficient in caspase-1, suggesting the predominance of an inflammasome-independent pathway for ECP-dependent IL-1β maturation. Clinically, patient analysis revealed significantly increased IL-1β production in stimulated leukapheresis concentrates and peripheral blood samples after ECP. Collectively, these results provide evidence for promotion of IL-1β production by ECP and offer new insight into the immunostimulatory capacity of ECP.
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Affiliation(s)
- Erhan Yakut
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University Giessen, D-35390 Giessen, Germany
| | - Christopher Jakobs
- Institute of Molecular Medicine, University Hospital, University of Bonn, 53127 Bonn, Germany; and
| | - Adriana Peric
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University Giessen, D-35390 Giessen, Germany
| | - Gabriela Michel
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University Giessen, D-35390 Giessen, Germany
| | - Nelli Baal
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University Giessen, D-35390 Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University Giessen, D-35390 Giessen, Germany
| | - Bernhard Brüne
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany
| | - Veit Hornung
- Institute of Molecular Medicine, University Hospital, University of Bonn, 53127 Bonn, Germany; and
| | - Holger Hackstein
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University Giessen, D-35390 Giessen, Germany;
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Pasparakis M, Vandenabeele P. Necroptosis and its role in inflammation. Nature 2015; 517:311-20. [PMID: 25592536 DOI: 10.1038/nature14191] [Citation(s) in RCA: 1457] [Impact Index Per Article: 161.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 11/11/2014] [Indexed: 02/07/2023]
Abstract
Regulated cell death has essential functions in development and in adult tissue homeostasis. Necroptosis is a newly discovered pathway of regulated necrosis that requires the proteins RIPK3 and MLKL and is induced by death receptors, interferons, toll-like receptors, intracellular RNA and DNA sensors, and probably other mediators. RIPK1 has important kinase-dependent and scaffolding functions that inhibit or trigger necroptosis and apoptosis. Mouse-model studies have revealed important functions for necroptosis in inflammation and suggested that it could be implicated in the pathogenesis of many human inflammatory diseases. We discuss the mechanisms regulating necroptosis and its potential role in inflammation and disease.
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Affiliation(s)
- Manolis Pasparakis
- Institute for Genetics, Centre for Molecular Medicine and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, 50674 Cologne, Germany
| | - Peter Vandenabeele
- 1] VIB Inflammation Research Center, Ghent University, UGhent-VIB Research Building FSVM, 9052 Ghent, Belgium [2] Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium. [3] Methusalem program, Ghent University, Technologiepark 927, B-9052 Ghent, Belgium
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Pasparakis M, Vandenabeele P. Necroptosis and its role in inflammation. Nature 2015. [DOI: 10.1038/nature14191 having 1479=1479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Pasparakis M, Vandenabeele P. Necroptosis and its role in inflammation. Nature 2015. [DOI: 10.1038/nature14191 order by 1-- ocnp] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Necroptosis and its role in inflammation. Nature 2015. [DOI: 10.1038/nature14191 and 2810=2810-- wbae] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Necroptosis and its role in inflammation. Nature 2015. [DOI: 10.1038/nature14191 and make_set(6705=6705,9963)-- tutl] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Pasparakis M, Vandenabeele P. Necroptosis and its role in inflammation. Nature 2015. [DOI: 10.1038/nature14191 having 6610=1325-- ftul] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Pasparakis M, Vandenabeele P. Necroptosis and its role in inflammation. Nature 2015. [DOI: 10.1038/nature14191 order by 1-- qnpz] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Necroptosis and its role in inflammation. Nature 2015. [DOI: 10.1038/nature14191 and 9718=9916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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