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Veselá B, Bzdúšková J, Ramešová A, Švandová E, Grässel S, Matalová E. Inhibition of caspase-11 under inflammatory conditions suppresses chondrogenic differentiation. Tissue Cell 2024; 89:102425. [PMID: 38875922 DOI: 10.1016/j.tice.2024.102425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 05/15/2024] [Accepted: 05/28/2024] [Indexed: 06/16/2024]
Abstract
Caspase-11 is the murine homologue of human caspases-4 and -5 and is involved in mediating the inflammatory response. However, its functions are often confused and misinterpreted with the more important and better described caspase-1. Therefore, this study focused exclusively on the specific roles of caspase-11, both in cartilage formation and in the inflammatory environment. The presence of caspase-11 during mouse limb development and in chondrogenic cell cultures was investigated by immunofluorescence detection. Subsequently, the function of caspase-11 was downregulated and the affected molecules investigated. The expression analysis applied for osteo/chondrogenesis associated factors and inflammatory cytokines. Simultaneously, morphological appearance of the micromass cultures was evaluated. The results revealed that caspase-11 is physiologically present during cartilage development, but its inhibition under physiological conditions has no significant effect on chondrogenic differentiation. However, in an inflammatory environment, inhibition and downregulation of caspase-11 leads to reduced differentiation of cartilage nodules. Additionally, reduced expression of several genes including Col2a1 and Sp7 and conversely increased expression of Mmp9 were observed. In the cytokine expression panel, a significant decrease was found in molecules that, along with the inflammatory function, may also be involved in cartilage differentiation. The findings bring new information about caspase-11 in chondrogenesis and show that its downregulation under inflammatory conditions reduces cartilage formation.
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Affiliation(s)
- Barbora Veselá
- Department of Physiology, University of Veterinary Sciences Brno, Brno, Czech Republic; Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.
| | - Jana Bzdúšková
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic
| | - Alice Ramešová
- University of Veterinary Medicine Vienna, Department of Biomedical Sciences, Institute of Physiology, Pathophysiology and Biophysics, Vienna, Austria
| | - Eva Švandová
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic
| | - Susanne Grässel
- Department of Orthopedic Surgery, Experimental Orthopedics, Centre for Medical Biotechnology (ZMB), University of Regensburg, Biopark 1, Germany
| | - Eva Matalová
- Department of Physiology, University of Veterinary Sciences Brno, Brno, Czech Republic; Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic
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2
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Dvornikova KA, Platonova ON, Bystrova EY. The Role of TRP Channels in Sepsis and Colitis. Int J Mol Sci 2024; 25:4784. [PMID: 38731999 PMCID: PMC11084600 DOI: 10.3390/ijms25094784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/20/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
To date, several members of the transient receptor potential (TRP) channels which provide a wide array of roles have been found in the gastrointestinal tract (GI). The goal of earlier research was to comprehend the intricate signaling cascades that contribute to TRP channel activation as well as how these receptors' activity affects other systems. Moreover, there is a large volume of published studies describing the role of TRP channels in a number of pathological disorders, including inflammatory bowel disease (IBD) and sepsis. Nevertheless, the generalizability of these results is subject to certain limitations. For instance, the study of IBD relies on various animal models and experimental methods, which are unable to precisely imitate the multifactorial chronic disease. The diverse pathophysiological mechanisms and unique susceptibility of animals may account for the inconsistency of the experimental data collected. The main purpose of this study was to conduct a comprehensive review and analysis of existing studies on transient receptor potential (TRP) channels implicating specific models of colitis and sepsis, with particular emphasis on their involvement in pathological disorders such as IBD and sepsis. Furthermore, the text endeavors to evaluate the generalizability of experimental findings, taking into consideration the limitations posed by animal models and experimental methodologies. Finally, we also provide an updated schematic of the most important and possible molecular signaling pathways associated with TRP channels in IBD and sepsis.
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Affiliation(s)
| | | | - Elena Y. Bystrova
- I.P. Pavlov Institute of Physiology RAS, 199034 St. Petersburg, Russia; (K.A.D.); (O.N.P.)
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3
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Wang H, Zhu S, Zhou Z, Wang Z, Zhuang W, Xue D, Lu Z, Zheng Q, Ding L, Ren L, Luo W, Wang R, Ge G, Xia L, Li G, Wu H. TR4 worsen urosepsis by regulating GSDMD. Eur J Med Res 2024; 29:151. [PMID: 38429762 PMCID: PMC10908015 DOI: 10.1186/s40001-024-01742-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 02/22/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Urosepsis is a life-threatening organ disease in which pathogenic microorganisms in the urine enter the blood through the vessels, causing an imbalance in the immune response to infection. The aim of this study was to elucidate the role of testicular orphan receptor 4 (TR4) in urosepsis. METHODS The role of TR4 in the progression and prognosis of urosepsis was confirmed by analyzing data from online databases and clinical human samples. To mimic urosepsis, we injected E. coli bacteria into the renal pelvis of mice to create a urosepsis model. Hematoxylin and eosin staining was used to observe histopathological changes in urosepsis. The effects of the upregulation or downregulation of TR4 on macrophage pyroptosis were verified in vitro. Chromatin immunoprecipitation assay was used to verify the effect of TR4 on Gasdermin D (GSDMD) transcription. RESULTS TR4 was more highly expressed in the nonsurviving group than in the surviving group. Furthermore, overexpressing TR4 promoted inflammatory cytokine expression, and knocking down TR4 attenuated inflammatory cytokine expression. Mechanistically, TR4 promoted pyroptosis by regulating the expression of GSDMD in urosepsis. Furthermore, we also found that TR4 knockdown protected mice from urosepsis induced by the E. coli. CONCLUSIONS TR4 functions as a key regulator of urosepsis by mediating pyroptosis, which regulates GSDMD expression. Targeting TR4 may be a potential strategy for urosepsis treatment.
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Affiliation(s)
- Huan Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Shibin Zhu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Zhenwei Zhou
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Zhenghui Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Wei Zhuang
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - Dingwei Xue
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Zeyi Lu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Qiming Zheng
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Lifeng Ding
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Liangliang Ren
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Wenqing Luo
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Ruyue Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Guangju Ge
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Liqun Xia
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Gonghui Li
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China.
| | - Haiyang Wu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China.
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4
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Miyawaki S, Sawamoto A, Okuyama S, Nakajima M. Sulconazole induces pyroptosis promoted by interferon-γ in monocyte/macrophage lineage cells. J Pharmacol Sci 2024; 154:166-174. [PMID: 38395517 DOI: 10.1016/j.jphs.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/30/2023] [Accepted: 01/22/2024] [Indexed: 02/25/2024] Open
Abstract
Imidazole derivatives are commonly used as antifungal agents. Here, we aimed to investigate the functions of imidazole derivatives on macrophage lineage cells. We assessed the expression levels of inflammatory cytokines in mouse monocyte/macrophage lineage (RAW264.7) cells. All six imidazole derivatives examined, namely ketoconazole, sulconazole, isoconazole, luliconazole, clotrimazole, and bifonazole, reduced the expression levels of inflammatory cytokines, such as interleukin (IL)-6 and tumor necrosis factor-α, after induction by lipopolysaccharide (LPS) in RAW264.7 cells. These imidazole derivatives also induced cell death in RAW264.7 cells, regardless of the presence or absence of LPS. Since the cell death was characteristic in morphology, we investigated the mode of the cell death. An imidazole derivative, sulconazole, induced gasdermin D degradation together with caspase-11 activation, namely, pyroptosis in RAW264.7 cells and peritoneal macrophages. Furthermore, priming with interferon-γ promoted sulconazole-induced pyroptosis in RAW264.7 cells and macrophages and reduced the secretion of the inflammatory cytokine, IL-1β, from sulconazole-treated macrophages. Our results suggest that imidazole derivatives suppress inflammation by inducing macrophage pyroptosis, highlighting their modulatory potential for inflammatory diseases.
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Affiliation(s)
- Shiori Miyawaki
- Department of Pharmaceutical Pharmacology, College of Pharmaceutical Sciences, Matsuyama University, 4-2, Bunkyo-cho, Matsuyama, Ehime, 790-0826, Japan
| | - Atsushi Sawamoto
- Department of Pharmaceutical Pharmacology, College of Pharmaceutical Sciences, Matsuyama University, 4-2, Bunkyo-cho, Matsuyama, Ehime, 790-0826, Japan
| | - Satoshi Okuyama
- Department of Pharmaceutical Pharmacology, College of Pharmaceutical Sciences, Matsuyama University, 4-2, Bunkyo-cho, Matsuyama, Ehime, 790-0826, Japan
| | - Mitsunari Nakajima
- Department of Pharmaceutical Pharmacology, College of Pharmaceutical Sciences, Matsuyama University, 4-2, Bunkyo-cho, Matsuyama, Ehime, 790-0826, Japan.
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5
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Wu J, Li Z, Deng Y, Lu X, Luo C, Mu X, Zhang T, Liu Q, Tang S, Li J, An Q, Fan D, Xiang Y, Wu X, Hu Y, Du Q, Xu J, Xie R. Function of TRP channels in monocytes/macrophages. Front Immunol 2023; 14:1187890. [PMID: 37404813 PMCID: PMC10315479 DOI: 10.3389/fimmu.2023.1187890] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 06/02/2023] [Indexed: 07/06/2023] Open
Abstract
The transient receptor potential channel (TRP channel) family is a kind of non- specific cation channel widely distributed in various tissues and organs of the human body, including the respiratory system, cardiovascular system, immune system, etc. It has been reported that various TRP channels are expressed in mammalian macrophages. TRP channels may be involved in various signaling pathways in the development of various systemic diseases through changes in intracellular concentrations of cations such as calcium and magnesium. These TRP channels may also intermingle with macrophage activation signals to jointly regulate the occurrence and development of diseases. Here, we summarize recent findings on the expression and function of TRP channels in macrophages and discuss their role as modulators of macrophage activation and function. As research on TRP channels in health and disease progresses, it is anticipated that positive or negative modulators of TRP channels for treating specific diseases may be promising therapeutic options for the prevention and/or treatment of disease.
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Affiliation(s)
- Jiangbo Wu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Zhuo Li
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Ya Deng
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Xianmin Lu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Chen Luo
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Xingyi Mu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Ting Zhang
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Qi Liu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Siqi Tang
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Jiajing Li
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Qimin An
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Dongdong Fan
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Yiwei Xiang
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Xianli Wu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Yanxia Hu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Qian Du
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Jingyu Xu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Rui Xie
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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Li FJ, Starrs L, Mathur A, Ishii H, Man SM, Burgio G. Differential activation of NLRP3 inflammasome by Acinetobacter baumannii strains. PLoS One 2022; 17:e0277019. [PMID: 36318583 PMCID: PMC9624416 DOI: 10.1371/journal.pone.0277019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/17/2022] [Indexed: 11/07/2022] Open
Abstract
Acinetobacter baumannii is an emerging nosocomial, opportunistic pathogen with growing clinical significance globally. A. baumannii has an exceptional ability to rapidly develop drug resistance. It is frequently responsible for ventilator-associated pneumonia in clinical settings and inflammation resulting in severe sepsis. The inflammatory response is mediated by host pattern-recognition receptors and the inflammasomes. Inflammasome activation triggers inflammatory responses, including the secretion of the pro-inflammatory cytokines IL-1β and IL-18, the recruitment of innate immune effectors against A. baumannii infection, and the induction programmed cell death by pyroptosis. An important knowledge gap is how variation among clinical isolates affects the host’s innate response and activation of the inflammasome during A. baumannii infection. In this study, we compared nine A. baumannii strains, including clinical locally-acquired isolates, in their ability to induce activation of the inflammasome and programmed cell death in primary macrophages, epithelial lung cell line and mice. We found a variation in survival outcomes of mice and bacterial dissemination in organs among three commercially available A. baumannii strains, likely due to the differences in virulence between strains. Interestingly, we found variability among A. baumannii strains in activation of the NLRP3 inflammasome, non-canonical Caspase-11 pathway, plasmatic secretion of the pro-inflammatory cytokine IL-1β and programmed cell death. Our study highlights the importance of utilising multiple bacterial strains and clinical isolates with different virulence to investigate the innate immune response to A. baumannii infection.
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Affiliation(s)
- Fei-Ju Li
- Division of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Lora Starrs
- Division of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Anukriti Mathur
- Division of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Hikari Ishii
- Division of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Si Ming Man
- Division of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Gaetan Burgio
- Division of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
- * E-mail:
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7
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Selezneva A, Gibb AJ, Willis D. The contribution of ion channels to shaping macrophage behaviour. Front Pharmacol 2022; 13:970234. [PMID: 36160429 PMCID: PMC9490177 DOI: 10.3389/fphar.2022.970234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022] Open
Abstract
The expanding roles of macrophages in physiological and pathophysiological mechanisms now include normal tissue homeostasis, tissue repair and regeneration, including neuronal tissue; initiation, progression, and resolution of the inflammatory response and a diverse array of anti-microbial activities. Two hallmarks of macrophage activity which appear to be fundamental to their diverse cellular functionalities are cellular plasticity and phenotypic heterogeneity. Macrophage plasticity allows these cells to take on a broad spectrum of differing cellular phenotypes in response to local and possibly previous encountered environmental signals. Cellular plasticity also contributes to tissue- and stimulus-dependent macrophage heterogeneity, which manifests itself as different macrophage phenotypes being found at different tissue locations and/or after different cell stimuli. Together, plasticity and heterogeneity align macrophage phenotypes to their required local cellular functions and prevent inappropriate activation of the cell, which could lead to pathology. To execute the appropriate function, which must be regulated at the qualitative, quantitative, spatial and temporal levels, macrophages constantly monitor intracellular and extracellular parameters to initiate and control the appropriate cell signaling cascades. The sensors and signaling mechanisms which control macrophages are the focus of a considerable amount of research. Ion channels regulate the flow of ions between cellular membranes and are critical to cell signaling mechanisms in a variety of cellular functions. It is therefore surprising that the role of ion channels in the macrophage biology has been relatively overlooked. In this review we provide a summary of ion channel research in macrophages. We begin by giving a narrative-based explanation of the membrane potential and its importance in cell biology. We then report on research implicating different ion channel families in macrophage functions. Finally, we highlight some areas of ion channel research in macrophages which need to be addressed, future possible developments in this field and therapeutic potential.
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8
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Blevins HM, Xu Y, Biby S, Zhang S. The NLRP3 Inflammasome Pathway: A Review of Mechanisms and Inhibitors for the Treatment of Inflammatory Diseases. Front Aging Neurosci 2022; 14:879021. [PMID: 35754962 PMCID: PMC9226403 DOI: 10.3389/fnagi.2022.879021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/12/2022] [Indexed: 12/24/2022] Open
Abstract
The NLRP3 inflammasome is a multiprotein complex that plays a pivotal role in regulating the innate immune system and inflammatory signaling. Upon activation by PAMPs and DAMPs, NLRP3 oligomerizes and activates caspase-1 which initiates the processing and release of pro-inflammatory cytokines IL-1β and IL-18. NLRP3 is the most extensively studied inflammasome to date due to its array of activators and aberrant activation in several inflammatory diseases. Studies using small molecules and biologics targeting the NLRP3 inflammasome pathway have shown positive outcomes in treating various disease pathologies by blocking chronic inflammation. In this review, we discuss the recent advances in understanding the NLRP3 mechanism, its role in disease pathology, and provide a broad review of therapeutics discovered to target the NLRP3 pathway and their challenges.
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Affiliation(s)
| | | | | | - Shijun Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, United States
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9
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Gout-associated monosodium urate crystal-induced necrosis is independent of NLRP3 activity but can be suppressed by combined inhibitors for multiple signaling pathways. Acta Pharmacol Sin 2022; 43:1324-1336. [PMID: 34376811 PMCID: PMC9061757 DOI: 10.1038/s41401-021-00749-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 07/20/2021] [Indexed: 12/12/2022] Open
Abstract
Monosodium urate (MSU) crystals, the etiological agent of gout, are formed in joints and periarticular tissues due to long-lasting hyperuricemia. Although MSU crystal-triggered NLRP3 inflammasome activation and interleukin 1β (IL-1β) release are known to have key roles in gouty arthritis, recent studies revealed that MSU crystal-induced necrosis also plays a critical role in this process. However, it remains unknown what forms of necrosis have been induced and whether combined cell death inhibitors can block such necrosis. Here, we showed that MSU crystal-induced necrosis in murine macrophages was not dependent on NLRP3 inflammasome activation, as neither genetic deletion nor pharmacological blockade of the NLRP3 pathway inhibited the necrosis. Although many cell death pathways (such as ferroptosis and pyroptosis) inhibitors or reactive oxygen species inhibitors did not have any suppressive effects, necroptosis pathway inhibitors GSK'872 (RIPK3 inhibitor), and GW806742X (MLKL inhibitor) dose-dependently inhibited MSU crystal-induced necrosis. Moreover, a triple combination of GSK'872, GW806742X, and IDN-6556 (pan-caspase inhibitor) displayed enhanced inhibition of the necrosis, which was further fortified by the addition of MCC950 (NLRP3 inhibitor), suggesting that multiple cell death pathways might have been triggered by MSU crystals. Baicalin, a previously identified inhibitor of NLRP3, inhibited MSU crystal-induced inflammasome activation and suppressed the necrosis in macrophages. Besides, baicalin gavage significantly ameliorated MSU crystal-induced peritonitis in mice. Altogether, our data indicate that MSU crystals induce NLRP3-independent necrosis, which can be inhibited by combined inhibitors for multiple signaling pathways, highlighting a new avenue for the treatment of gouty arthritis.
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10
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Artlett CM. The Mechanism and Regulation of the NLRP3 Inflammasome during Fibrosis. Biomolecules 2022; 12:biom12050634. [PMID: 35625564 PMCID: PMC9138796 DOI: 10.3390/biom12050634] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 02/01/2023] Open
Abstract
Fibrosis is often the end result of chronic inflammation. It is characterized by the excessive deposition of extracellular matrix. This leads to structural alterations in the tissue, causing permanent damage and organ dysfunction. Depending on the organ it effects, fibrosis can be a serious threat to human life. The molecular mechanism of fibrosis is still not fully understood, but the NLRP3 (NOD-, LRR- and pyrin–domain–containing protein 3) inflammasome appears to play a significant role in the pathogenesis of fibrotic disease. The NLRP3 inflammasome has been the most extensively studied inflammatory pathway to date. It is a crucial component of the innate immune system, and its activation mediates the secretion of interleukin (IL)-1β and IL-18. NLRP3 activation has been strongly linked with fibrosis and drives the differentiation of fibroblasts into myofibroblasts by the chronic upregulation of IL-1β and IL-18 and subsequent autocrine signaling that maintains an activated inflammasome. Both IL-1β and IL-18 are profibrotic, however IL-1β can have antifibrotic capabilities. NLRP3 responds to a plethora of different signals that have a common but unidentified unifying trigger. Even after 20 years of extensive investigation, regulation of the NLRP3 inflammasome is still not completely understood. However, what is known about NLRP3 is that its regulation and activation is complex and not only driven by various activators but controlled by numerous post-translational modifications. More recently, there has been an intensive attempt to discover NLRP3 inhibitors to treat chronic diseases. This review addresses the role of the NLRP3 inflammasome in fibrotic disorders across many different tissues. It discusses the relationships of various NLRP3 activators to fibrosis and covers different therapeutics that have been developed, or are currently in development, that directly target NLRP3 or its downstream products as treatments for fibrotic disorders.
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Affiliation(s)
- Carol M Artlett
- Department of Microbiology & Immunology, College of Medicine, Drexel University, Philadelphia, PA 19129, USA
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11
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Lee Y, Reilly B, Tan C, Wang P, Aziz M. Extracellular CIRP Induces Macrophage Extracellular Trap Formation Via Gasdermin D Activation. Front Immunol 2021; 12:780210. [PMID: 35003095 PMCID: PMC8732379 DOI: 10.3389/fimmu.2021.780210] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 12/03/2021] [Indexed: 01/03/2023] Open
Abstract
Extracellular cold-inducible RNA-binding protein (eCIRP) is a damage-associated molecular pattern promoting inflammation and tissue injury. During bacterial or viral infection, macrophages release DNA decorated with nuclear and cytoplasmic proteins known as macrophage extracellular traps (METs). Gasdermin D (GSDMD) is a pore-forming protein that has been involved in extracellular trap formation in neutrophils. We hypothesized that eCIRP induces MET formation by activating GSDMD. Human monocytic cell line THP-1 cells were differentiated with phorbol 12-myristate 13-acetate (PMA) and treated with recombinant murine (rm) CIRP. The MET formation was detected by three methods: time-lapse fluorescence microscopy (video imaging), colorimetry, and ELISA. Cleaved forms of GSDMD, and caspase-1 were detected by Western blotting. Treatment of THP-1 cells with rmCIRP increased MET formation as revealed by SYTOX Orange Staining assay in a time- and dose-dependent manner. METs formed by rmCIRP stimulation were further confirmed by extracellular DNA, citrullinated histone H3, and myeloperoxidase. Treatment of THP-1 cells with rmCIRP significantly increased the cleaved forms of caspase-1 and GSDMD compared to PBS-treated cells. Treatment of macrophages with caspase-1, and GSDMD inhibitors z-VAD-fmk, and disulfiram, separately, significantly decreased rmCIRP-induced MET formation. We also confirmed rmCIRP-induced MET formation using primary cells murine peritoneal macrophages. These data clearly show that eCIRP serves as a novel inducer of MET formation through the activation of GSDMD and caspase-1.
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Affiliation(s)
- Yongchan Lee
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Bridgette Reilly
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Chuyi Tan
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Ping Wang
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Department of Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
- Department of Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Monowar Aziz
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Department of Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
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12
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Zhong M, Huang Y, Zeng B, Xu L, Zhong C, Qiu J, Ye X, Chen M, Hu B, Ouyang D, He X. Induction of multiple subroutines of regulated necrosis in murine macrophages by natural BH3-mimetic gossypol. Acta Biochim Biophys Sin (Shanghai) 2021; 54:64-76. [PMID: 35130622 PMCID: PMC9909304 DOI: 10.3724/abbs.2021004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Macrophages are critical sentinel cells armed with multiple regulated necrosis pathways, including pyroptosis, apoptosis followed by secondary necrosis, and necroptosis, and are poised to undergo distinct form(s) of necrosis for tackling dangers of pathogenic infection or toxic exposure. The natural BH3-mimetic gossypol is a toxic phytochemical that can induce apoptosis and/or pyroptotic-like cell death, but what exact forms of regulated necrosis are induced remains largely unknown. Here we demonstrated that gossypol induces pyroptotic-like cell death in both unprimed and lipopolysaccharide-primed mouse bone marrow-derived macrophages (BMDMs), as evidenced by membrane swelling and ballooning accompanied by propidium iodide incorporation and lactic acid dehydrogenase release. Notably, gossypol simultaneously induces the activation of both pyroptotic and apoptotic (followed by secondary necrosis) pathways but only weakly activates the necroptosis pathway. Unexpectedly, gossypol-induced necrosis is independent of nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3 (NLRP3) inflammasome, as neither inhibitor for the NLRP3 pathway nor NLRP3 deficiency protects the macrophages from the necrosis. Furthermore, necrotic inhibitors or even pan-caspase inhibitor alone does not or only partly inhibit such necrosis. Instead, a combination of inhibitors composed of pan-caspase inhibitor IDN-6556, RIPK3 inhibitor GSK'872 and NADPH oxidase inhibitor GKT137831 not only markedly inhibits the necrosis, with all apoptotic and pyroptotic pathways being blocked, but also attenuates gossypol-induced peritonitis in mice. Lastly, the activation of the NLRP3 pathway and apoptotic caspase-3 appears to be independent of each other. Collectively, gossypol simultaneously induces the activation of multiple subroutines of regulated necrosis in macrophages depending on both apoptotic and inflammatory caspases.
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Affiliation(s)
- Meiyan Zhong
- Department of ImmunobiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Yuanting Huang
- Department of ImmunobiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Bo Zeng
- Department of ImmunobiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Lihui Xu
- Department of Cell BiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Chunsu Zhong
- Department of ImmunobiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Jiahao Qiu
- Department of ImmunobiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Xunjia Ye
- Department of ImmunobiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Mingye Chen
- Department of ImmunobiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Bo Hu
- Department of Nephrologythe First Affiliated Hospital of Jinan UniversityGuangzhou510632China
| | - Dongyun Ouyang
- Department of ImmunobiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
| | - Xianhui He
- Department of ImmunobiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou510632China
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13
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Liang H, Huang Y, Gao Q. Role of non-canonical pyroptosis in sepsis and other inflammatory diseases. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2021; 46:1276-1284. [PMID: 34911863 PMCID: PMC10929856 DOI: 10.11817/j.issn.1672-7347.2021.210174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Indexed: 11/03/2022]
Abstract
As a form of new programmed cell death, pyroptosis is divided into a canonical pyroptosis pathway and a non-canonical pyroptosis pathway. In recent years, it is reported that non-canonical pyroptosis is closely related to inflammatory reactions, which directly affects the occurrence, development, and outcome of sepsis, inflammatory bowel disease, respiratory disease, nerve system inflammatory disease, and other inflammatory diseases. When the cells were infected with Gram-negative bacteria or lipopolysaccharide (LPS), it can induce the activation of cysteinyl aspartate specific proteinase(caspase)-4/5/11 and directly bind to the cells to cleave gasdermin D (GSDM-D) into the active amino-terminus of GSDM-D. The amino-terminus of GSDM-D with membrane punching activity migrates to the cell membrane, triggering the rupture of the cell membrane, and the cell contents discharge, leading to the occurrence of non-canonical pyroptosis. After activation of caspase-11, it also promotes the canonical pyroptosis, activates and releases interleukin-1β and interleukin-18, which aggravated inflammation. Caspase-4/5/11, GSDM-D, Toll-like receptor 4 and high mobility group protein B1 are the key molecules of the non-canonical pyroptosis. Exploring the mechanisms of non-canonical pyroptosis and the related research progresses in inflammatory diseases intensively is of great significance for clinical prevention and treatment of the relevant diseases.
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Affiliation(s)
- Huan Liang
- Department of Physiology, Bengbu Medical College, Bengbu Anhui 233000.
- Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu Anhui 233000, China.
| | - Yuhui Huang
- Department of Physiology, Bengbu Medical College, Bengbu Anhui 233000
- Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu Anhui 233000, China
| | - Qin Gao
- Department of Physiology, Bengbu Medical College, Bengbu Anhui 233000.
- Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu Anhui 233000, China.
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14
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Huo S, Ren J, Ma Y, Ozathaley A, Yuan W, Ni H, Li D, Liu Z. Upregulation of TRPC5 in hippocampal excitatory synapses improves memory impairment associated with neuroinflammation in microglia knockout IL-10 mice. J Neuroinflammation 2021; 18:275. [PMID: 34836549 PMCID: PMC8620645 DOI: 10.1186/s12974-021-02321-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 11/10/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Members of the transient receptor potential canonical (TRPC) protein family are widely distributed in the hippocampus of mammals and exert respective and cooperative influences on the functions of neurons. The relationship between specific TRPC subtypes and neuroinflammation is receiving increasing attention. METHODS Using Cx3cr1CreERIL-10-/- transgenic mice and their littermates to study the relationship between TRPC channels and memory impairment. RESULTS We demonstrated that Cx3cr1CreERIL-10-/- mice displayed spatial memory deficits in object location recognition (OLR) and Morris water maze (MWM) tasks. The decreased levels of TRPC4 and TRPC5 in the hippocampal regions were verified via reverse transcription polymerase chain reaction, western blotting, and immunofluorescence tests. The expression of postsynaptic density protein 95 (PSD95) and synaptophysin in the hippocampus decreased with an imbalance in the local inflammatory environment in the hippocampus. The number of cells positive for ionized calcium-binding adaptor molecule 1 (Iba1), a glial fibrillary acidic protein (GFAP), increased with the high expression of interleukin 6 (IL-6) in Cx3cr1CreERIL-10-/- mice. The nod-like receptor protein 3 (NLRP3) inflammasome was also involved in this process, and the cytokines IL-1β and IL-18 activated by NLRP3 were also elevated by western blotting. The co-localization of TRPC5 and calmodulin-dependent protein kinase IIα (CaMKIIα) significantly decreased TRPC5 expression in excitatory neurons. AAV9-CaMKIIα-TRPC5 was used to upregulate TRPC5 in excitatory neurons in the hippocampus. CONCLUSIONS The results showed that the upregulation of TRPC5 improved the memory performance of Cx3cr1CreERIL-10-/- mice related to inhibiting NLRP3 inflammasome-associated neuroinflammation.
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Affiliation(s)
- Shiji Huo
- Medical School, Nankai University, No.94, Weijin Road, Nankai District, Tianjin, 300071, China
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Nankai University, Tianjin, China
| | - Jiling Ren
- Department of Pathogen Biology, Basic Medical School, Tianjin Medical University, Tianjin, China
| | - Yunqing Ma
- Medical School, Nankai University, No.94, Weijin Road, Nankai District, Tianjin, 300071, China
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Nankai University, Tianjin, China
| | - Ahsawle Ozathaley
- Medical School, Nankai University, No.94, Weijin Road, Nankai District, Tianjin, 300071, China
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Nankai University, Tianjin, China
| | - Wenjian Yuan
- Medical School, Nankai University, No.94, Weijin Road, Nankai District, Tianjin, 300071, China
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Nankai University, Tianjin, China
| | - Hong Ni
- Medical School, Nankai University, No.94, Weijin Road, Nankai District, Tianjin, 300071, China
| | - Dong Li
- Medical School, Nankai University, No.94, Weijin Road, Nankai District, Tianjin, 300071, China
| | - Zhaowei Liu
- Medical School, Nankai University, No.94, Weijin Road, Nankai District, Tianjin, 300071, China.
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Nankai University, Tianjin, China.
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15
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Suarez-Berumen K, Collins-Hooper H, Gromova A, Meech R, Sacco A, Dash PR, Mitchell R, Shestopalov VI, Woolley TE, Vaiyapuri S, Patel K, Makarenkova HP. Pannexin 1 Regulates Skeletal Muscle Regeneration by Promoting Bleb-Based Myoblast Migration and Fusion Through a Novel Lipid Based Signaling Mechanism. Front Cell Dev Biol 2021; 9:736813. [PMID: 34676213 PMCID: PMC8523994 DOI: 10.3389/fcell.2021.736813] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/13/2021] [Indexed: 12/12/2022] Open
Abstract
Adult skeletal muscle has robust regenerative capabilities due to the presence of a resident stem cell population called satellite cells. Muscle injury leads to these normally quiescent cells becoming molecularly and metabolically activated and embarking on a program of proliferation, migration, differentiation, and fusion culminating in the repair of damaged tissue. These processes are highly coordinated by paracrine signaling events that drive cytoskeletal rearrangement and cell-cell communication. Pannexins are a family of transmembrane channel proteins that mediate paracrine signaling by ATP release. It is known that Pannexin1 (Panx1) is expressed in skeletal muscle, however, the role of Panx1 during skeletal muscle development and regeneration remains poorly understood. Here we show that Panx1 is expressed on the surface of myoblasts and its expression is rapidly increased upon induction of differentiation and that Panx1-/- mice exhibit impaired muscle regeneration after injury. Panx1-/- myoblasts activate the myogenic differentiation program normally, but display marked deficits in migration and fusion. Mechanistically, we show that Panx1 activates P2 class purinergic receptors, which in turn mediate a lipid signaling cascade in myoblasts. This signaling induces bleb-driven amoeboid movement that in turn supports myoblast migration and fusion. Finally, we show that Panx1 is involved in the regulation of cell-matrix interaction through the induction of ADAMTS (Disintegrin-like and Metalloprotease domain with Thrombospondin-type 5) proteins that help remodel the extracellular matrix. These studies reveal a novel role for lipid-based signaling pathways activated by Panx1 in the coordination of myoblast activities essential for skeletal muscle regeneration.
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Affiliation(s)
- Katia Suarez-Berumen
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, United States.,West Anaheim Medical Center, Anaheim, CA, United States
| | | | - Anastasia Gromova
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, United States.,Development, Aging and Regeneration Program, Center for Genetic Disorders and Aging Research, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Robyn Meech
- Department of Clinical Pharmacology, Flinders University, Adelaide, SA, Australia
| | - Alessandra Sacco
- Development, Aging and Regeneration Program, Center for Genetic Disorders and Aging Research, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Phil R Dash
- School of Biological Sciences, University of Reading, Reading, United Kingdom
| | - Robert Mitchell
- School of Biological Sciences, University of Reading, Reading, United Kingdom
| | - Valery I Shestopalov
- Bascom Palmer Eye Institute, University of Miami School of Medicine, Miami, FL, United States.,Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow, Russia
| | - Thomas E Woolley
- Mathematical Institute, University of Oxford, Oxford, United Kingdom
| | | | - Ketan Patel
- School of Biological Sciences, University of Reading, Reading, United Kingdom
| | - Helen P Makarenkova
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, United States
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16
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Chen MY, Ye XJ, He XH, Ouyang DY. The Signaling Pathways Regulating NLRP3 Inflammasome Activation. Inflammation 2021; 44:1229-1245. [PMID: 34009550 DOI: 10.1007/s10753-021-01439-6] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/30/2021] [Accepted: 02/16/2021] [Indexed: 02/07/2023]
Abstract
The NLRP3 inflammasome is a multi-molecular complex that acts as a molecular platform to mediate caspase-1 activation, leading to IL-1β/IL-18 maturation and release in cells stimulated by various pathogen-associated molecular patterns (PAMPs) or damage-associated molecular patterns (DAMPs). This inflammasome plays an important role in the innate immunity as its activation can further promote the occurrence of inflammation, enhance the ability of host to remove pathogens, and thus facilitate the repair of injured tissues. But if the inflammasome activation is dysregulated, it will cause the development of various inflammatory diseases and metabolic disorders. Therefore, under normal conditions, the activation of inflammasome is tightly regulated by various positive and negative signaling pathways to respond to the stimuli without damaging the host itself while maintaining homeostasis. In this review, we summarize recent advances in the major signaling pathways (including TLRs, MAPK, mTOR, autophagy, PKA, AMPK, and IFNR) that regulate NLRP3 inflammasome activation, providing a brief view of the molecular network that regulates this inflammasome as a theoretical basis for therapeutic intervention of NLRP3 dysregulation-related diseases.
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Affiliation(s)
- Ming-Ye Chen
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Xun-Jia Ye
- 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.
| | - Dong-Yun Ouyang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China.
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17
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Yan L, Liu Y, Ma XF, Hou D, Zhang YH, Sun Y, Shi SS, Forouzanfar T, Lin HY, Fan J, Wu G. Triclabendazole Induces Pyroptosis by Activating Caspase-3 to Cleave GSDME in Breast Cancer Cells. Front Pharmacol 2021; 12:670081. [PMID: 34305590 PMCID: PMC8297466 DOI: 10.3389/fphar.2021.670081] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 06/14/2021] [Indexed: 12/24/2022] Open
Abstract
Pyroptosis is a form of programmed cell death, in which gasdermin E (GSDME) plays an important role in cancer cells, which can be induced by activated caspase-3 on apoptotic stimulation. Triclabendazole is a new type of imidazole in fluke resistance and has been approved by the FDA for the treatment of fascioliasis and its functions partially acting through apoptosis-related mechanisms. However, it remains unclear whether triclabendazole has obvious anti-cancer effects on breast cancer cells. In this study, to test the function of triclabendazole on breast cancer, we treated breast cancer cells with triclabendazole and found that triclabendazole induced lytic cell death in MCF-7 and MDA-MB-231, and the dying cells became swollen with evident large bubbles, a typical sign of pyroptosis. Triclabendazole activates apoptosis by regulating the apoptoic protein levels including Bax, Bcl-2, and enhanced cleavage of caspase-8/9/3/7 and PARP. In addition, enhanced cleavage of GSDME was also observed, which indicates the secondary necrosis/pyroptosis is further induced by active caspase-3. Consistent with this, triclabendazole-induced GSDME-N-terminal fragment cleavage and pyroptosis were reduced by caspase-3-specific inhibitor (Ac-DEVD-CHO) treatment. Moreover, triclabendazole induced reactive oxygen species (ROS) elevation and increased JNK phosphorylation and lytic cell death, which could be rescued by the ROS scavenger (NAC), suggesting that triclabendazole-induced GSDME-dependent pyroptosis is related to the ROS/JNK/Bax-mitochondrial apoptotic pathway. Besides, we showed that triclabendazole significantly reduced the tumor volume by promoting the cleavage of caspase-3, PARP, and GSDME in the xenograft model. Altogether, our results revealed that triclabendazole induces GSDME-dependent pyroptosis by caspase-3 activation at least partly through augmenting the ROS/JNK/Bax-mitochondrial apoptotic pathway, providing insights into this on-the-market drug in its potential new application in cancer treatment.
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Affiliation(s)
- Liang Yan
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, China
| | - Yi Liu
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xue-Feng Ma
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Dan Hou
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC/VUmc Location and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universitetit Amsterdam, Amsterdam Movement Science, Amsterdam, Netherlands
| | - Yu-Hui Zhang
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yong Sun
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, China
| | - Shan-Shan Shi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Tim Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC/VUmc Location and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universitetit Amsterdam, Amsterdam Movement Science, Amsterdam, Netherlands
| | - Hai-Yan Lin
- Savaid Stomatology School, Hangzhou Medical College, Hangzhou, China
| | - Jun Fan
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, China
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC/VUmc Location and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universitetit Amsterdam, Amsterdam Movement Science, Amsterdam, Netherlands.,Department of Oral Implantology and Prosthetic Dentistry, Academic Centre of Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
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18
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Discovery of a caspase cleavage motif antibody reveals insights into noncanonical inflammasome function. Proc Natl Acad Sci U S A 2021; 118:2018024118. [PMID: 33723046 DOI: 10.1073/pnas.2018024118] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Inflammasomes sense a number of pathogen and host damage signals to initiate a signaling cascade that triggers inflammatory cell death, termed pyroptosis. The inflammatory caspases (1/4/5/11) are the key effectors of this process through cleavage and activation of the pore-forming protein gasdermin D. Caspase-1 also activates proinflammatory interleukins, IL-1β and IL-18, via proteolysis. However, compared to the well-studied apoptotic caspases, the identity of substrates and therefore biological functions of the inflammatory caspases remain limited. Here, we construct, validate, and apply an antibody toolset for direct detection of neo-C termini generated by inflammatory caspase proteolysis. By combining rabbit immune phage display with a set of degenerate and defined target peptides, we discovered two monoclonal antibodies that bind peptides with a similar degenerate recognition motif as the inflammatory caspases without recognizing the canonical apoptotic caspase recognition motif. Crystal structure analyses revealed the molecular basis of this strong yet paradoxical degenerate mode of peptide recognition. One antibody selectively immunoprecipitated cleaved forms of known and unknown inflammatory caspase substrates, allowing the identification of over 300 putative substrates of the caspase-4 noncanonical inflammasome, including caspase-7. This dataset will provide a path toward developing blood-based biomarkers of inflammasome activation. Overall, our study establishes tools to discover and detect inflammatory caspase substrates and functions, provides a workflow for designing antibody reagents to study cell signaling, and extends the growing evidence of biological cross talk between the apoptotic and inflammatory caspases.
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19
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Yang F, Ye XJ, Chen MY, Li HC, Wang YF, Zhong MY, Zhong CS, Zeng B, Xu LH, He XH, Ouyang DY. Inhibition of NLRP3 Inflammasome Activation and Pyroptosis in Macrophages by Taraxasterol Is Associated With Its Regulation on mTOR Signaling. Front Immunol 2021; 12:632606. [PMID: 33679781 PMCID: PMC7925414 DOI: 10.3389/fimmu.2021.632606] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/28/2021] [Indexed: 12/21/2022] Open
Abstract
Taraxasterol (TAS) is an active ingredient of Dandelion (Taraxacum mongolicum Hand. -Mazz.), a medicinal plant that has long been used in China for treatment of inflammatory disorders. But the underlying mechanism for its therapeutic effects on inflammatory disorders is not completely clear. Inflammasome activation is a critical step of innate immune response to infection and aseptic inflammation. Among the various types of inflammasome sensors that has been reported, NLR family pyrin domain containing 3 (NLRP3) is implicated in various inflammatory diseases and therefore has been most extensively studied. In this study, we aimed to explore whether TAS could influence NLPR3 inflammasome activation in macrophages. The results showed that TAS dose-dependently suppressed the activation of caspase-1 in lipopolysaccharide (LPS)-primed murine primary macrophages upon nigericin treatment, resulting in reduced mature interleukin-1β (IL-1β) release and gasdermin D (GSDMD) cleavage. TAS greatly reduced ASC speck formation upon the stimulation of nigericin or extracellular ATP. Consistent with reduced cleavage of GSDMD, nigericin-induced pyroptosis was alleviated by TAS. Interestingly, TAS time-dependently suppressed the mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) and mTORC2 signaling induced by LPS priming. Like TAS, both INK-128 (inhibiting both mTORC1 and mTORC2) and rapamycin (inhibiting mTORC1 only) also inhibited NLRP3 inflammasome activation, though their effects on mTOR signaling were different. Moreover, TAS treatment alleviated mitochondrial damage by nigericin and improved mouse survival from bacterial infection, accompanied by reduced IL-1β levels in vivo. Collectively, by inhibiting the NLRP3 inflammasome activation, TAS displayed anti-inflammatory effects likely through regulation of the mTOR signaling in macrophages, highlighting a potential action mechanism for the anti-inflammatory activity of Dandelion in treating inflammation-related disorders, which warrants further clinical investigation.
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Affiliation(s)
- Fan Yang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Xun-Jia Ye
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Ming-Ye Chen
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Hong-Chun Li
- Wuzhongpei Memorial Hospital of Shunde, Foshan, China
| | - Yao-Feng Wang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Mei-Yan Zhong
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Chun-Su Zhong
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Bo Zeng
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Li-Hui Xu
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Xian-Hui He
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Dong-Yun Ouyang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
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20
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Patoli D, Mignotte F, Deckert V, Dusuel A, Dumont A, Rieu A, Jalil A, Van Dongen K, Bourgeois T, Gautier T, Magnani C, Le Guern N, Mandard S, Bastin J, Djouadi F, Schaeffer C, Guillaumot N, Narce M, Nguyen M, Guy J, Dargent A, Quenot JP, Rialland M, Masson D, Auwerx J, Lagrost L, Thomas C. Inhibition of mitophagy drives macrophage activation and antibacterial defense during sepsis. J Clin Invest 2021; 130:5858-5874. [PMID: 32759503 DOI: 10.1172/jci130996] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 07/29/2020] [Indexed: 12/26/2022] Open
Abstract
Mitochondria have emerged as key actors of innate and adaptive immunity. Mitophagy has a pivotal role in cell homeostasis, but its contribution to macrophage functions and host defense remains to be delineated. Here, we showed that lipopolysaccharide (LPS) in combination with IFN-γ inhibited PINK1-dependent mitophagy in macrophages through a STAT1-dependent activation of the inflammatory caspases 1 and 11. In addition, we demonstrated that the inhibition of mitophagy triggered classical macrophage activation in a mitochondrial ROS-dependent manner. In a murine model of polymicrobial infection (cecal ligature and puncture), adoptive transfer of Pink1-deficient bone marrow or pharmacological inhibition of mitophagy promoted macrophage activation, which favored bactericidal clearance and led to a better survival rate. Reciprocally, mitochondrial uncouplers that promote mitophagy reversed LPS/IFN-γ-mediated activation of macrophages and led to immunoparalysis with impaired bacterial clearance and lowered survival. In critically ill patients, we showed that mitophagy was inhibited in blood monocytes of patients with sepsis as compared with nonseptic patients. Overall, this work demonstrates that the inhibition of mitophagy is a physiological mechanism that contributes to the activation of myeloid cells and improves the outcome of sepsis.
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Affiliation(s)
- Danish Patoli
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Franck Mignotte
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Valérie Deckert
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Alois Dusuel
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Adélie Dumont
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Aurélie Rieu
- UBFC, UMR PAM A 02.102, AgroSup Dijon/ Université de Bourgogne, Dijon, France
| | - Antoine Jalil
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Kevin Van Dongen
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Thibaut Bourgeois
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Thomas Gautier
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Charlène Magnani
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Naig Le Guern
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Stéphane Mandard
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Jean Bastin
- Centre de Recherche des Cordeliers, INSERM, Université Sorbonne-Paris-Cité, Paris, France
| | - Fatima Djouadi
- Centre de Recherche des Cordeliers, INSERM, Université Sorbonne-Paris-Cité, Paris, France
| | | | - Nina Guillaumot
- Université de Strasbourg, CNRS, UMR 7178, LSMBO, Strasbourg, France
| | - Michel Narce
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - Maxime Nguyen
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France.,Department of Anesthesiology and Intensive Care
| | | | - Auguste Dargent
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France.,Department of Intensive Care, University Hospital François Mitterrand, Dijon, France
| | - Jean-Pierre Quenot
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France.,Department of Intensive Care, University Hospital François Mitterrand, Dijon, France.,Clinical Epidemiology, INSERM CIC 1432 and University of Burgundy, Dijon, France
| | - Mickaël Rialland
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
| | - David Masson
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France.,Clinical Biochemistry Department, University Hospital François Mitterrand, Dijon, France
| | - Johan Auwerx
- Laboratory for Integrative Systems Physiology, Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Laurent Lagrost
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France.,Clinical Biochemistry Department, University Hospital François Mitterrand, Dijon, France
| | - Charles Thomas
- Université de Bourgogne Franche-Comté (UBFC), UMR 1231, INSERM/AgroSup Dijon/Université de Bourgogne, Dijon, France.,LipSTIC LabEx, Dijon, France
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21
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He D, Li X, Zhang F, Wang C, Liu Y, Bhawal UK, Sun J. Dec2 inhibits macrophage pyroptosis to promote periodontal homeostasis. J Periodontal Implant Sci 2021; 52:28-38. [PMID: 35187871 PMCID: PMC8860764 DOI: 10.5051/jpis.2101380069] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 06/21/2021] [Accepted: 07/27/2021] [Indexed: 11/12/2022] Open
Abstract
Purpose Macrophages play crucial roles as early responders to bacterial pathogens and promote/ or impede chronic inflammation in various tissues. Periodontal macrophage-induced pyroptosis results in physiological and pathological inflammatory responses. The transcription factor Dec2 is involved in regulating immune function and inflammatory processes. To characterize the potential unknown role of Dec2 in the innate immune system, we sought to elucidate the mechanism that may alleviate macrophage pyroptosis in periodontal inflammation. Methods Porphyromonas gingivalis lipopolysaccharide (LPS) was used to induce pyroptosis in RAW 264.7 macrophages. Subsequently, we established an LPS-stimulated Dec2 overexpression cellular model in macrophages. Human chronic periodontitis tissues were employed to evaluate potential changes in inflammatory marker expression and pyroptosis. Finally, the effects of Dec2 deficiency on inflammation and pyroptosis were characterized in a P. gingivalis-treated experimental periodontitis Dec2-knockout mouse model. Results Macrophages treated with LPS revealed significantly increased messenger RNA expression levels of Dec2 and interleukin (IL)-1β. Dec2 overexpression reduced IL-1β expression in macrophages treated with LPS. Overexpression of Dec2 also repressed the cleavage of gasdermin D (GSDMD), and the expression of caspase-11 was concurrently reduced in macrophages treated with LPS. Human chronic periodontitis tissues showed significantly higher gingival inflammation and pyroptosis-related protein expression than non-periodontitis tissues. In vivo, P. gingivalis-challenged mice exhibited a significant augmentation of F4/80, tumor necrosis factor-α, and IL-1β. Dec2 deficiency markedly induced GSDMD expression in the periodontal ligament of P. gingivalis-challenged mice. Conclusions Our findings indicate that Dec2 deficiency exacerbated P. gingivalis LPS-induced periodontal inflammation and GSDMD-mediated pyroptosis. Collectively, our results present novel insights into the molecular functions of macrophage pyroptosis and document an unforeseen role of Dec2 in pyroptosis.
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Affiliation(s)
- Dawei He
- Department of Periodontics and Oral Mucosa Disease, Dalian Stomatological Hospital, Dalian, China
| | - Xiaoyan Li
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Fengzhu Zhang
- Shenyang Medical College School of Stomatology, Shenyang, China
| | - Chen Wang
- Department of Histology, Nihon University School of Dentistry at Matsudo, Matsudo, Japan
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Ujjal K. Bhawal
- Department of Oral Health, Kanagawa Dental University, Yokosuka, Japan
- Department of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Matsudo, Japan
| | - Jiang Sun
- Department of Periodontics and Oral Mucosa Disease, Dalian Stomatological Hospital, Dalian, China
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22
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Ye J, Zeng B, Zhong M, Li H, Xu L, Shu J, Wang Y, Yang F, Zhong C, Ye X, He X, Ouyang D. Scutellarin inhibits caspase-11 activation and pyroptosis in macrophages via regulating PKA signaling. Acta Pharm Sin B 2021; 11:112-126. [PMID: 33532184 PMCID: PMC7838020 DOI: 10.1016/j.apsb.2020.07.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/21/2020] [Accepted: 07/21/2020] [Indexed: 12/14/2022] Open
Abstract
Inflammatory caspase-11 senses and is activated by intracellular lipopolysaccharide (LPS) leading to pyroptosis that has critical role in defensing against bacterial infection, whereas its excess activation under pathogenic circumstances may cause various inflammatory diseases. However, there are few known drugs that can control caspase-11 activation. We report here that scutellarin, a flavonoid from Erigeron breviscapus, acted as an inhibitor for caspase-11 activation in macrophages. Scutellarin dose-dependently inhibited intracellular LPS-induced release of caspase-11p26 (indicative of caspase-11 activation) and generation of N-terminal fragment of gasdermin D (GSDMD-NT), leading to reduced pyroptosis. It also suppressed the activation of non-canonical nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3 (NLRP3) inflammasome as evidenced by reduced apoptosis-associated speck-like protein containing a CARD (ASC) speck formation and decreased interleukin-1 beta (IL-1β) and caspase-1p10 secretion, whereas the NLRP3-specific inhibitor MCC950 only inhibited IL-1β and caspase-1p10 release and ASC speck formation but not pyroptosis. Scutellarin also suppressed LPS-induced caspase-11 activation and pyroptosis in RAW 264.7 cells lacking ASC expression. Moreover, scutellarin treatment increased Ser/Thr phosphorylation of caspase-11 at protein kinase A (PKA)-specific sites, and its inhibitory action on caspase-11 activation was largely abrogated by PKA inhibitor H89 or by adenylyl cyclase inhibitor MDL12330A. Collectively, our data indicate that scutellarin inhibited caspase-11 activation and pyroptosis in macrophages at least partly via regulating the PKA signaling pathway.
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23
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Mendu SK, Stremska ME, Schappe MS, Moser EK, Krupa JK, Rogers JS, Stipes EJ, Parker CA, Braciale TJ, Perry JSA, Desai BN. Targeting the ion channel TRPM7 promotes the thymic development of regulatory T cells by promoting IL-2 signaling. Sci Signal 2020; 13:13/661/eabb0619. [PMID: 33293462 DOI: 10.1126/scisignal.abb0619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The thymic development of regulatory T (Treg) cells, crucial suppressors of the responses of effector T (Teff) cells, is governed by the transcription factor FOXP3. Despite the clinical importance of Treg cells, there is a dearth of druggable molecular targets capable of increasing their numbers in vivo. We found that inhibiting the function of the TRPM7 chanzyme (ion channel and enzyme) potentiated the thymic development of Treg cells in mice and led to a substantially higher frequency of functional Treg cells in the periphery. In addition, TRPM7-deficient mice were resistant to T cell-driven hepatitis. Deletion of Trpm7 and inhibition of TRPM7 channel activity by the FDA-approved drug FTY720 increased the sensitivity of T cells to the cytokine interleukin-2 (IL-2) through a positive feed-forward loop involving increased expression of the IL-2 receptor α-subunit and activation of the transcriptional regulator STAT5. Enhanced IL-2 signaling increased the expression of Foxp3 in thymocytes and promoted thymic Treg (tTreg) cell development. Thus, these data indicate that inhibiting TRPM7 activity increases Treg cell numbers, suggesting that it may be a therapeutic target to promote immune tolerance.
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Affiliation(s)
- Suresh K Mendu
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA
| | - Marta E Stremska
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA.,Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, VA 22908, USA
| | - Michael S Schappe
- Howard Hughes Medical Institute, Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | | | - Julia K Krupa
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA
| | - Jason S Rogers
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA
| | - Eric J Stipes
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA
| | - Clare A Parker
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA
| | - Thomas J Braciale
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
| | - Justin S A Perry
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY 10065, USA
| | - Bimal N Desai
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA. .,Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA.,Robert M. Berne Cardiovascular Research Center, Charlottesville, VA 22908, USA
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24
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Downs KP, Nguyen H, Dorfleutner A, Stehlik C. An overview of the non-canonical inflammasome. Mol Aspects Med 2020; 76:100924. [PMID: 33187725 PMCID: PMC7808250 DOI: 10.1016/j.mam.2020.100924] [Citation(s) in RCA: 140] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/30/2020] [Accepted: 11/03/2020] [Indexed: 12/21/2022]
Abstract
Inflammasomes are large cytosolic multiprotein complexes assembled in response to infection and cellular stress, and are crucial for the activation of inflammatory caspases and the subsequent processing and release of pro-inflammatory mediators. While caspase-1 is activated within the canonical inflammasome, the related caspase-4 (also known as caspase-11 in mice) and caspase-5 are activated within the non-canonical inflammasome upon sensing of cytosolic lipopolysaccharide (LPS) from Gram-negative bacteria. However, the consequences of canonical and non-canonical inflammasome activation are similar. Caspase-1 promotes the processing and release of the pro-inflammatory cytokines interleukin (IL)-1β and IL-18 and the release of danger signals, as well as a lytic form of cell death called pyroptosis, whereas caspase-4, caspase-5 and caspase-11 directly promote pyroptosis through cleavage of the pore-forming protein gasdermin D (GSDMD), and trigger a secondary activation of the canonical NLRP3 inflammasome for cytokine release. Since the presence of the non-canonical inflammasome activator LPS leads to endotoxemia and sepsis, non-canonical inflammasome activation and regulation has important clinical ramifications. Here we discuss the mechanism of non-canonical inflammasome activation, mechanisms regulating its activity and its contribution to health and disease.
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Affiliation(s)
- Kevin P Downs
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA, 90048, USA.
| | - Huyen Nguyen
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA, 90048, USA.
| | - Andrea Dorfleutner
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA, 90048, USA; Department of Biomedical Sciences, Cedars Sinai, Los Angeles, CA, 90048, USA.
| | - Christian Stehlik
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA, 90048, USA; Department of Biomedical Sciences, Cedars Sinai, Los Angeles, CA, 90048, USA; Samuel Oschin Comprehensive Cancer Institute, Cedars Sinai, Los Angeles, CA, 90048, USA.
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25
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Devi S, Stehlik C, Dorfleutner A. An Update on CARD Only Proteins (COPs) and PYD Only Proteins (POPs) as Inflammasome Regulators. Int J Mol Sci 2020; 21:E6901. [PMID: 32962268 PMCID: PMC7555848 DOI: 10.3390/ijms21186901] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/17/2020] [Accepted: 09/17/2020] [Indexed: 12/18/2022] Open
Abstract
Inflammasomes are protein scaffolds required for the activation of caspase-1 and the subsequent release of interleukin (IL)-1β, IL-18, and danger signals, as well as the induction of pyroptotic cell death to restore homeostasis following infection and sterile tissue damage. However, excessive inflammasome activation also causes detrimental inflammatory disease. Therefore, extensive control mechanisms are necessary to prevent improper inflammasome responses and inflammatory disease. Inflammasomes are assembled by sequential nucleated polymerization of Pyrin domain (PYD) and caspase recruitment domain (CARD)-containing inflammasome components. Once polymerization is nucleated, this process proceeds in a self-perpetuating manner and represents a point of no return. Therefore, regulation of this key step is crucial for a controlled inflammasome response. Here, we provide an update on two single domain protein families containing either a PYD or a CARD, the PYD-only proteins (POPs) and CARD-only proteins (COPs), respectively. Their structure allows them to occupy and block access to key protein-protein interaction domains necessary for inflammasome assembly, thereby regulating the threshold of these nucleated polymerization events, and consequently, the inflammatory host response.
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Affiliation(s)
- Savita Devi
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA 90048, USA;
| | - Christian Stehlik
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA 90048, USA;
- Department of Biomedical Sciences, and Samuel Oschin Comprehensive Cancer Institute, Cedars Sinai, Los Angeles, CA 90048, USA
| | - Andrea Dorfleutner
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA 90048, USA;
- Department of Biomedical Sciences, Cedars Sinai, Los Angeles, CA 90048, USA
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26
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Pereira LMN, Assis PA, de Araújo NM, Durso DF, Junqueira C, Ataíde MA, Pereira DB, Lien E, Fitzgerald KA, Zamboni DS, Golenbock DT, Gazzinelli RT. Caspase-8 mediates inflammation and disease in rodent malaria. Nat Commun 2020; 11:4596. [PMID: 32929083 PMCID: PMC7490701 DOI: 10.1038/s41467-020-18295-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 08/08/2020] [Indexed: 12/18/2022] Open
Abstract
Earlier studies indicate that either the canonical or non-canonical pathways of inflammasome activation have a limited role on malaria pathogenesis. Here, we report that caspase-8 is a central mediator of systemic inflammation, septic shock in the Plasmodium chabaudi-infected mice and the P. berghei-induced experimental cerebral malaria (ECM). Importantly, our results indicate that the combined deficiencies of caspases-8/1/11 or caspase-8/gasdermin-D (GSDM-D) renders mice impaired to produce both TNFα and IL-1β and highly resistant to lethality in these models, disclosing a complementary, but independent role of caspase-8 and caspases-1/11/GSDM-D in the pathogenesis of malaria. Further, we find that monocytes from malaria patients express active caspases-1, -4 and -8 suggesting that these inflammatory caspases may also play a role in the pathogenesis of human disease. Inflammasome activation plays a role in malaria pathogenesis, but details aren’t well understood. Here, the authors show that caspase-8 is a central mediator of systemic inflammation in rodent malaria and that monocytes from malaria patients express active caspases-1, -4 and -8.
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Affiliation(s)
- Larissa M N Pereira
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil.,Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.,Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Patrícia A Assis
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Natalia M de Araújo
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil.,Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Danielle F Durso
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Caroline Junqueira
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil
| | - Marco Antônio Ataíde
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil.,Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Dhelio B Pereira
- Centro de Pesquisas em Medicina Tropical, FIOCRUZ-RO, Porto Velho, RO, 76812-329, Brazil
| | - Egil Lien
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Katherine A Fitzgerald
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Dario S Zamboni
- Departamento de Biologia Celular Molecular e Bioagentes Patogenicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Douglas T Golenbock
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil.,Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Ricardo T Gazzinelli
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil. .,Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil. .,Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA. .,Plataforma de Medicina Translacional, Fundação Oswaldo Cruz/Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, 14049-900, Brazil.
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27
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Morita T, Mitsuyama K, Yamasaki H, Mori A, Yoshimura T, Araki T, Morita M, Tsuruta K, Yamasaki S, Kuwaki K, Yoshioka S, Takedatsu H, Torimura T. Gene Expression of Transient Receptor Potential Channels in Peripheral Blood Mononuclear Cells of Inflammatory Bowel Disease Patients. J Clin Med 2020; 9:jcm9082643. [PMID: 32823895 PMCID: PMC7547374 DOI: 10.3390/jcm9082643] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/02/2020] [Accepted: 08/12/2020] [Indexed: 12/29/2022] Open
Abstract
We examined the expression profile of transient receptor potential (TRP) channels in peripheral blood mononuclear cells (PBMCs) from patients with inflammatory bowel disease (IBD). PBMCs were obtained from 41 ulcerative colitis (UC) patients, 34 Crohn's disease (CD) patients, and 30 normal subjects. mRNA levels of TRP channels were measured using the quantitative real-time polymerase chain reaction, and correlation tests with disease ranking, as well as laboratory parameters, were performed. Compared with controls, TRPV2 and TRPC1 mRNA expression was lower, while that of TRPM2, was higher in PBMCs of UC and CD patients. Moreover, TRPV3 mRNA expression was lower, while that of TRPV4 was higher in CD patients. TRPC6 mRNA expression was higher in patients with CD than in patients with UC. There was also a tendency for the expression of TRPV2 mRNA to be negatively correlated with disease activity in patients with UC and CD, while that of TRPM4 mRNA was negatively correlated with disease activity only in patients with UC. PBMCs from patients with IBD exhibited varying mRNA expression levels of TRP channel members, which may play an important role in the progression of IBD.
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Affiliation(s)
- Taku Morita
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
| | - Keiichi Mitsuyama
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
- Correspondence: ; Tel.: +81-942-31-7561
| | - Hiroshi Yamasaki
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
| | - Atsushi Mori
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
| | - Tetsuhiro Yoshimura
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
| | - Toshihiro Araki
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
| | - Masaru Morita
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
| | - Kozo Tsuruta
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
| | - Sayo Yamasaki
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
| | - Kotaro Kuwaki
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
| | - Shinichiro Yoshioka
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
| | - Hidetoshi Takedatsu
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
- Inflammatory Bowel Disease Center, Kurume University Hospital, 67 Asahi-Machi, Kurume 830-0011, Japan
| | - Takuji Torimura
- Department of Medicine, Division of Gastroenterology, School of Medicine, Kurume University, 67 Asahi-Machi, Kurume 830-0011, Japan; (T.M.); (H.Y.); (A.M.); (T.Y.); (T.A.); (M.M.); (K.T.); (S.Y.); (K.K.); (S.Y.); (H.T.); (T.T.)
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Abu Khweek A, Amer AO. Pyroptotic and non-pyroptotic effector functions of caspase-11. Immunol Rev 2020; 297:39-52. [PMID: 32737894 PMCID: PMC7496135 DOI: 10.1111/imr.12910] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/08/2020] [Accepted: 07/09/2020] [Indexed: 12/16/2022]
Abstract
Innate immune cells, epithelial cells, and many other cell types are capable of detecting infection or tissue injury, thus mounting regulated immune response. Inflammasomes are highly sophisticated and effective orchestrators of innate immunity. These oligomerized multiprotein complexes are at the center of various innate immune pathways, including modulation of the cytoskeleton, production and maturation of cytokines, and control of bacterial growth and cell death. Inflammasome assembly often results in caspase‐1 activation, which is an inflammatory caspase that is involved in pyroptotic cell death and release of inflammatory cytokines in response to pathogen patterns and endogenous danger stimuli. However, the nature of stimuli and inflammasome components are diverse. Caspase‐1 activation mediated release of mature IL‐1β and IL‐18 in response to canonical stimuli initiated by NOD‐like receptor (NLR), and apoptosis‐associated speck‐like protein containing a caspase recruitment domain (ASC). On the other hand, caspase‐11 delineates a non‐canonical inflammasome that promotes pyroptotic cell death and non‐pyroptotic functions in response to non‐canonical stimuli. Caspase‐11 in mice and its homologues in humans (caspase‐4/5) belong to caspase‐1 family of cysteine proteases, and play a role in inflammation. Knockout mice provided new genetic tools to study inflammatory caspases and revealed the role of caspase‐11 in mediating septic shock in response to lethal doses of lipopolysaccharide (LPS). Recognition of LPS mediates caspase‐11 activation, which promotes a myriad of downstream effects that include pyroptotic and non‐pyroptotic effector functions. Therefore, the physiological functions of caspase‐11 are much broader than its previously established roles in apoptosis and cytokine maturation. Inflammation induced by exogenous or endogenous agents can be detrimental and, if excessive, can result in organ and tissue damage. Consequently, the existence of sophisticated mechanisms that tightly regulate the specificity and sensitivity of inflammasome pathways provides a fine‐tuning balance between adequate immune response and minimal tissue damage. In this review, we summarize effector functions of caspase‐11.
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Affiliation(s)
- Arwa Abu Khweek
- Department of Biology and Biochemistry, Birzeit University, West Bank, Palestine
| | - Amal O Amer
- Department of Microbial Infection and Immunity, Infectious Disease Institute, College of Medicine, The Ohio State University, Columbus, OH, USA
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Zeng CY, Li CG, Shu JX, Xu LH, Ouyang DY, Mai FY, Zeng QZ, Zhang CC, Li RM, He XH. ATP induces caspase-3/gasdermin E-mediated pyroptosis in NLRP3 pathway-blocked murine macrophages. Apoptosis 2020; 24:703-717. [PMID: 31175486 DOI: 10.1007/s10495-019-01551-x] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
ATP acts as a canonical activator to induce NLRP3 (NOD-like receptor family, pyrin domain containing 3) inflammasome activation in macrophages, leading to caspase-1/gasdermin D (GSDMD)-mediated pyroptosis. It remains unclear whether ATP can induce pyroptosis in macrophages when the NLRP3 pathway is blocked by pathogenic infection. In this study, we used cellular models to mimic such blockade of NLRP3 activation: bone marrow-derived macrophages (BMDMs) treated with NLRP3-specific inhibitor MCC950 and RAW264.7 cells deficient in ASC (apoptosis-associated speck-like protein containing a caspase recruitment domain) expression. The results showed that ATP treatment induced lytic cell death morphologically resembling canonical pyroptosis in both MCC950-treated BMDMs and RAW264.7 cells, but did not cause the activation of caspase-1 (by detecting caspase-1p10 and mature interleukin-1β) and cleavage of GSDMD. Instead, both apoptotic initiator (caspase-8 and -9) and executioner (caspase-3 and -7) caspases were evidently activated and gasdermin E (GSDME) was cleaved to generate its N-terminal fragment (GSDME-NT) which executes pyroptosis. The GSDME-NT production and lytic cell death induced by ATP were diminished by caspase-3 inhibitor. In BMDMs without MCC950 treatment, ATP induced the formation of ASC specks which were co-localized with caspase-8; with MCC950 treatment, however, ATP did not induced the formation of ASC specks. In RAW264.7 cells, knockdown of GSDME by small interfering RNA attenuated ATP-induced lytic cell death and HMGB1 release into culture supernatants. Collectively, our results indicate that ATP induces pyroptosis in macrophages through the caspase-3/GSDME axis when the canonical NLRP3 pathway is blocked, suggestive of an alternative mechanism for combating against pathogen evasion.
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Affiliation(s)
- Chen-Ying Zeng
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Chen-Guang Li
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Jun-Xiang Shu
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Li-Hui Xu
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Dong-Yun Ouyang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Feng-Yi Mai
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Qiong-Zhen Zeng
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Cheng-Cheng Zhang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Rui-Man Li
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Jinan University, Guangzhou, China.
| | - Xian-Hui He
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China.
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Matikainen S, Nyman TA, Cypryk W. Function and Regulation of Noncanonical Caspase-4/5/11 Inflammasome. THE JOURNAL OF IMMUNOLOGY 2020; 204:3063-3069. [DOI: 10.4049/jimmunol.2000373] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 04/20/2020] [Indexed: 12/19/2022]
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de Vasconcelos NM, Lamkanfi M. Recent Insights on Inflammasomes, Gasdermin Pores, and Pyroptosis. Cold Spring Harb Perspect Biol 2020; 12:cshperspect.a036392. [PMID: 31570336 DOI: 10.1101/cshperspect.a036392] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Inflammasomes assemble in the cytosol of myeloid and epithelial cells on sensing of cellular stress and pathogen-associated molecular patterns and serve as scaffolds for recruitment and activation of inflammatory caspases. Inflammasomes play beneficial roles in host and immune responses against diverse pathogens but may also promote inflammatory tissue damage if uncontrolled. Gasdermin D (GSDMD) is a recently identified substrate of murine caspase-1 and caspase-11, and human caspases-1, -4, and -5 that mediates a regulated lytic cell death mode termed pyroptosis. Recent studies have identified pyroptosis as a critical inflammasome effector mechanism that controls inflammasome-dependent cytokine secretion and contributes to antimicrobial defense and inflammasome-mediated autoinflammatory diseases. Here, we review recent developments on inflammasome-associated effector functions with an emphasis on the emerging roles of gasdermin pores and pyroptosis.
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Affiliation(s)
- Nathalia M de Vasconcelos
- Department of Internal Medicine and Pediatrics, Ghent University, B-9000 Ghent, Belgium.,VIB-UGhent Center for Inflammation Research, VIB, B-9052 Ghent, Belgium
| | - Mohamed Lamkanfi
- Department of Internal Medicine and Pediatrics, Ghent University, B-9000 Ghent, Belgium.,Janssen Immunosciences, World Without Disease Accelerator, Pharmaceutical Companies of Johnson & Johnson, B-2340 Beerse, Belgium
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Formoso K, Susperreguy S, Freichel M, Birnbaumer L. RNA-seq analysis reveals TRPC genes to impact an unexpected number of metabolic and regulatory pathways. Sci Rep 2020; 10:7227. [PMID: 32350291 PMCID: PMC7190874 DOI: 10.1038/s41598-020-61177-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 02/21/2020] [Indexed: 12/12/2022] Open
Abstract
The seven-member transient receptor potential canonical genes (TRPC1-7) encode cation channels linked to several human diseases. There is little understanding of the participation of each TRPC in each pathology, considering functional redundancy. Also, most of the inhibitors available are not specific. Thus, we developed mice that lack all of the TRPCs and performed a transcriptome analysis in eight tissues. The aim of this research was to address the impact of the absence of all TRPC channels on gene expression. We obtained a total of 4305 differentially expressed genes (DEGs) in at least one tissue where spleen showed the highest number of DEGs (1371). Just 21 genes were modified in all the tissues. Performing a pathway enrichment analysis, we found that many important signaling pathways were modified in more than one tissue, including PI3K (phosphatidylinositol 3-kinase/protein kinase-B) signaling pathway, cytokine-cytokine receptor interaction, extracellular matrix (ECM)-receptor interaction and circadian rhythms. We describe for the first time the changes at the transcriptome level due to the lack of all TRPC proteins in a mouse model and provide a starting point to understand the function of TRPC channels and their possible roles in pathologies.
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Affiliation(s)
- Karina Formoso
- Institute for Biomedical Research (BIOMED UCA-CONICET). School of Medical Sciences, Catholic University of Argentina (UCA), Buenos Aires, C1107AFF, Argentina
| | - Sebastian Susperreguy
- Institute for Biomedical Research (BIOMED UCA-CONICET). School of Medical Sciences, Catholic University of Argentina (UCA), Buenos Aires, C1107AFF, Argentina
| | - Marc Freichel
- Institute of Physiology and Pathophysiology, Heidelberg University, 69120, Heidelberg, Germany
| | - Lutz Birnbaumer
- Institute for Biomedical Research (BIOMED UCA-CONICET). School of Medical Sciences, Catholic University of Argentina (UCA), Buenos Aires, C1107AFF, Argentina. .,Neurobiology Laboratory, National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, North Carolina, 27709, USA.
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Liu Z, Yao X, Jiang W, Li W, Zhu S, Liao C, Zou L, Ding R, Chen J. Advanced oxidation protein products induce microglia-mediated neuroinflammation via MAPKs-NF-κB signaling pathway and pyroptosis after secondary spinal cord injury. J Neuroinflammation 2020; 17:90. [PMID: 32192500 PMCID: PMC7082940 DOI: 10.1186/s12974-020-01751-2] [Citation(s) in RCA: 171] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 02/20/2020] [Indexed: 12/20/2022] Open
Abstract
Background Inflammatory response mediated by oxidative stress is considered as an important pathogenesis of spinal cord injury (SCI). Advanced oxidation protein products (AOPPs) are novel markers of oxidative stress and their role in inflammatory response after SCI remained unclear. This study aimed to investigate the role of AOPPs in SCI pathogenesis and explore the possible underlying mechanisms. Methods A C5 hemi-contusion injury was induced in Sprague-Dawley rats to confirm the involvement of AOPPs after SCI. For in vivo study, apocynin, the NADPH oxidase inhibitor was used to study the neuroprotective effects after SCI. For in vitro study, the BV2 microglia cell lines were pretreated with or without the inhibitor or transfected with or without small interference RNA (siRNA) and then stimulated with AOPPs. A combination of molecular and histological methods was used to clarify the mechanism and explore the signaling pathway both in vivo and in vitro. One-way analysis of variance (ANOVA) was conducted with Bonferroni post hoc tests to examine the differences between groups. Results The levels of AOPPs in plasma and cerebrospinal fluid as well as the contents in the spinal cord showed significant increase after SCI. Meanwhile, apocynin ameliorated tissue damage in the spinal cord after SCI, improving the functional recovery. Immunofluorescence staining and western blot analysis showed activation of microglia after SCI, which was in turn inhibited by apocynin. Pretreated BV2 cells with AOPPs triggered excessive generation of reactive oxygen species (ROS) by activating NADPH oxidase. Increased ROS induced p38 MAPK and JNK phosphorylation, subsequently triggering nuclear translocation of NF-κB p65 to express pro-inflammatory cytokines. Also, treatment of BV2 cells with AOPPs induced NLRP3 inflammasome activation and cleavage of Gasdermin-d (GSDMD), causing pyroptosis. This was confirmed by cleavage of caspase-1, production of downstream mature interleukin (IL)-1β and IL-18 as well as rupture of rapid cell membrane. Conclusions Collectively, these data indicated AOPPs as biomarkers of oxidative stress, modulating inflammatory response in SCI by multiple signaling pathways, which also included the induction of NADPH oxidase dependent ROS, and NLRP3-mediated pyroptosis, and activation of MAPKs and NF-κB.
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Affiliation(s)
- Zhongyuan Liu
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Xinqiang Yao
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Wangsheng Jiang
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Wei Li
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Siyuan Zhu
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Congrui Liao
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Lin Zou
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Ruoting Ding
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
| | - Jianting Chen
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
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Polyphyllin VI Induces Caspase-1-Mediated Pyroptosis via the Induction of ROS/NF-κB/NLRP3/GSDMD Signal Axis in Non-Small Cell Lung Cancer. Cancers (Basel) 2020; 12:cancers12010193. [PMID: 31941010 PMCID: PMC7017302 DOI: 10.3390/cancers12010193] [Citation(s) in RCA: 184] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 12/24/2022] Open
Abstract
Trillium tschonoskii Maxim (TTM), a traditional Chinese medicine, has been demonstrated to have a potent anti-tumor effect. Recently, polyphyllin VI (PPVI), a main saponin isolated from TTM, was reported by us to significantly suppress the proliferation of non-small cell lung cancer (NSCLC) via the induction of apoptosis and autophagy in vitro and in vivo. In this study, we further found that the NLRP3 inflammasome was activated in PPVI administrated A549-bearing athymic nude mice. As is known to us, pyroptosis is an inflammatory form of caspase-1-dependent programmed cell death that plays an important role in cancer. By using A549 and H1299 cells, the in vitro effect and action mechanism by which PPVI induces activation of the NLRP3 inflammasome in NSCLC were investigated. The anti-proliferative effect of PPVI in A549 and H1299 cells was firstly measured and validated by MTT assay. The activation of the NLRP3 inflammasome was detected by using Hoechst33324/PI staining, flow cytometry analysis and real-time live cell imaging methods. We found that PPVI significantly increased the percentage of cells with PI signal in A549 and H1299, and the dynamic change in cell morphology and the process of cell death of A549 cells indicated that PPVI induced an apoptosis-to-pyroptosis switch, and, ultimately, lytic cell death. In addition, belnacasan (VX-765), an inhibitor of caspase-1, could remarkably decrease the pyroptotic cell death of PPVI-treated A549 and H1299 cells. Moreover, by detecting the expression of NLRP3, ASC, caspase-1, IL-1β, IL-18 and GSDMD in A549 and h1299 cells using Western blotting, immunofluorescence imaging and flow cytometric analysis, measuring the caspase-1 activity using colorimetric assay, and quantifying the cytokines level of IL-1β and IL-18 using ELISA, the NLRP3 inflammasome was found to be activated in a dose manner, while VX-765 and necrosulfonamide (NSA), an inhibitor of GSDMD, could inhibit PPVI-induced activation of the NLRP3 inflammasome. Furthermore, the mechanism study found that PPVI could activate the NF-κB signaling pathway via increasing reactive oxygen species (ROS) levels in A549 and H1299 cells, and N-acetyl-L-cysteine (NAC), a scavenger of ROS, remarkably inhibited the cell death, and the activation of NF-κB and the NLRP3 inflammasome in PPVI-treated A549 and H1299 cells. Taken together, these data suggested that PPVI-induced, caspase-1-mediated pyroptosis via the induction of the ROS/NF-κB/NLRP3/GSDMD signal axis in NSCLC, which further clarified the mechanism of PPVI in the inhibition of NSCLC, and thereby provided a possibility for PPVI to serve as a novel therapeutic agent for NSCLC in the future.
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Caution K, Young N, Robledo-Avila F, Krause K, Abu Khweek A, Hamilton K, Badr A, Vaidya A, Daily K, Gosu H, Anne MNK, Eltobgy M, Dakhlallah D, Argwal S, Estfanous S, Zhang X, Partida-Sanchez S, Gavrilin MA, Jarjour WN, Amer AO. Caspase-11 Mediates Neutrophil Chemotaxis and Extracellular Trap Formation During Acute Gouty Arthritis Through Alteration of Cofilin Phosphorylation. Front Immunol 2019; 10:2519. [PMID: 31803174 PMCID: PMC6874099 DOI: 10.3389/fimmu.2019.02519] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/09/2019] [Indexed: 12/21/2022] Open
Abstract
Gout is characterized by attacks of arthritis with hyperuricemia and monosodium urate (MSU) crystal-induced inflammation within joints. Innate immune responses are the primary drivers for tissue destruction and inflammation in gout. MSU crystals engage the Nlrp3 inflammasome, leading to the activation of caspase-1 and production of IL-1β and IL-18 within gout-affected joints, promoting the influx of neutrophils and monocytes. Here, we show that caspase-11−/− mice and their derived macrophages produce significantly reduced levels of gout-specific cytokines including IL-1β, TNFα, IL-6, and KC, while others like IFNγ and IL-12p70 are not altered. IL-1β induces the expression of caspase-11 in an IL-1 receptor-dependent manner in macrophages contributing to the priming of macrophages during sterile inflammation. The absence of caspase-11 reduced the ability of macrophages and neutrophils to migrate in response to exogenously injected KC in vivo. Notably, in vitro, caspase-11−/− neutrophils displayed random migration in response to a KC gradient when compared to their WT counterparts. This phenotype was associated with altered cofilin phosphorylation. Unlike their wild-type counterparts, caspase-11−/− neutrophils also failed to produce neutrophil extracellular traps (NETs) when treated with MSU. Together, this is the first report demonstrating that caspase-11 promotes neutrophil directional trafficking and function in an acute model of gout. Caspase-11 also governs the production of inflammasome-dependent and -independent cytokines from macrophages. Our results offer new, previously unrecognized functions for caspase-11 in macrophages and neutrophils that may apply to other neutrophil-mediated disease conditions besides gout.
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Affiliation(s)
- Kyle Caution
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Nicholas Young
- Department of Rheumatology and Immunology, The Ohio State University Medical Center, Columbus, OH, United States
| | - Frank Robledo-Avila
- Center for Microbial Pathogenesis, Nationwide Children's Hospital, Columbus, OH, United States
| | - Kathrin Krause
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Arwa Abu Khweek
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States.,Department of Biology and Biochemistry, Birzeit University, West Bank, Palestine
| | - Kaitlin Hamilton
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Asmaa Badr
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Anup Vaidya
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Kylene Daily
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Hawin Gosu
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Midhun N K Anne
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Mostafa Eltobgy
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Duaa Dakhlallah
- Department of Microbiology, Immunology and Cell Biology, West Virginia University, Morgantown, WV, United States
| | - Sudha Argwal
- Department of Rheumatology and Immunology, The Ohio State University Medical Center, Columbus, OH, United States
| | - Shady Estfanous
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
| | - Xiaoli Zhang
- Center for Biostatistics, The Ohio State University Medical Center, Columbus, OH, United States
| | | | - Mikhail A Gavrilin
- Department of Internal Medicine, The Ohio State University Medical Center, Columbus, OH, United States
| | - Wael N Jarjour
- Department of Rheumatology and Immunology, The Ohio State University Medical Center, Columbus, OH, United States
| | - Amal O Amer
- Department of Microbial Infection and Immunity, The Ohio State University Medical Center, Columbus, OH, United States
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Somade OT, Ajayi BO, Tajudeen NO, Atunlute EM, James AS, Kehinde SA. Camphor elicits up-regulation of hepatic and pulmonary pro-inflammatory cytokines and chemokines via activation of NF-kB in rats. PATHOPHYSIOLOGY 2019; 26:305-313. [DOI: 10.1016/j.pathophys.2019.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/08/2019] [Accepted: 07/28/2019] [Indexed: 11/25/2022] Open
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Mai FY, He P, Ye JZ, Xu LH, Ouyang DY, Li CG, Zeng QZ, Zeng CY, Zhang CC, He XH, Hu B. Caspase-3-mediated GSDME activation contributes to cisplatin- and doxorubicin-induced secondary necrosis in mouse macrophages. Cell Prolif 2019; 52:e12663. [PMID: 31347748 PMCID: PMC6797504 DOI: 10.1111/cpr.12663] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/01/2019] [Accepted: 06/27/2019] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Induction of secondary necrosis/pyroptosis contributes to the toxicity of chemotherapeutic drugs, in which gasdermin E (GSDME) plays critical roles. This study aimed to explore whether GSDME is involved in mediating the cytotoxic effects of cisplatin and doxorubicin on mouse macrophages. METHODS RAW 264.7 cells and bone marrow-derived macrophages (BMDMs) were treated with cisplatin or doxorubicin. Propidium iodide staining was used to assay necrosis, and immunoblotting was performed to detect protein expression. GSDME was knocked down by using small interfering RNA. Mice were injected intraperitoneally to evaluate toxicity to macrophages in vivo. Flow cytometry and immunofluorescence microscopy were adopted to analyse phenotypes of peritoneal cells. Cytokine levels were assayed by cytometric bead array. RESULTS Both cisplatin and doxorubicin dose-dependently induced necrosis in mouse RAW 264.7 macrophages and BMDMs. Accompanying this, multiple caspases were activated, concomitant with the cleavage of poly (ADP-ribose) polymerase. Consistent with caspase-3 activation, GSDME was cleaved to generate its N-terminal fragment (GSDME-NT), thus leading to secondary necrosis/pyroptosis. Inhibition of caspase-3 significantly attenuated the generation of GSDME-NT concurrently with decreased necrosis in macrophages. GSDME knockdown also evidently decreased the necrosis in RAW 264.7 and BMDMs. Besides, cisplatin administration depleted peritoneal macrophages in mice, which was associated with caspase-3 activation and GSDME-NT generation. Consistent with the macrophage depletion, cisplatin administration significantly decreased survival of mice with bacterial infection. CONCLUSION Chemotherapeutic cisplatin and doxorubicin exerted their cytotoxicity on macrophages partly by inducing caspase-3/GSDME-mediated secondary necrosis.
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Affiliation(s)
- Feng-Yi Mai
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Pengyan He
- School of Medicine, Sun Yat-Sen University, Shenzhen, China
| | - Jie-Zhou Ye
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Li-Hui Xu
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Dong-Yun Ouyang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Chen-Guang Li
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Qiong-Zhen Zeng
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Chen-Ying Zeng
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Cheng-Cheng Zhang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Xian-Hui He
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Bo Hu
- Department of Nephrology, the First Affiliated Hospital of Jinan University, Guangzhou, China
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Inoue T, Yamakage H, Tanaka M, Kusakabe T, Shimatsu A, Satoh-Asahara N. Oxytocin Suppresses Inflammatory Responses Induced by Lipopolysaccharide through Inhibition of the eIF-2-ATF4 Pathway in Mouse Microglia. Cells 2019; 8:cells8060527. [PMID: 31159306 PMCID: PMC6627458 DOI: 10.3390/cells8060527] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 05/27/2019] [Accepted: 05/28/2019] [Indexed: 02/06/2023] Open
Abstract
Microglia maintain brain homeostasis and modulate neuroinflammation and are implicated in the pathogenesis of various neurological diseases such as Alzheimer's disease. In this study, we found that in lipopolysaccharide (LPS)-stimulated microglia, the endoplasmic reticulum (ER) stress-related eIF-2-ATF4 pathway plays significant roles in TNF- and IL-6 production, as well as in the inflammasome-mediated production of IL-1. Furthermore, our analysis revealed that oxytocin (OT), a nonapeptide synthesized in the hypothalamus, suppressed the production of these proinflammatory cytokines by inhibiting activation of the eIF-2-ATF4 pathway. Our findings therefore suggest a novel anti-inflammatory axis of OT in activated microglia, which would be helpful for developing the novel effective strategies for regulating microglia-associated neuroinflammation.
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Affiliation(s)
- Takayuki Inoue
- Department of Endocrinology, Metabolism, and Hypertension Research, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan.
| | - Hajime Yamakage
- Department of Endocrinology, Metabolism, and Hypertension Research, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan.
| | - Masashi Tanaka
- Department of Endocrinology, Metabolism, and Hypertension Research, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan.
- Department of Physical Therapy, Health Science University, Yamanashi 401-0380, Japan.
| | - Toru Kusakabe
- Department of Endocrinology, Metabolism, and Hypertension Research, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan.
| | - Akira Shimatsu
- Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan.
| | - Noriko Satoh-Asahara
- Department of Endocrinology, Metabolism, and Hypertension Research, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan.
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Li CG, Zeng QZ, Chen MY, Xu LH, Zhang CC, Mai FY, Zeng CY, He XH, Ouyang DY. Evodiamine Augments NLRP3 Inflammasome Activation and Anti-bacterial Responses Through Inducing α-Tubulin Acetylation. Front Pharmacol 2019; 10:290. [PMID: 30971927 PMCID: PMC6443907 DOI: 10.3389/fphar.2019.00290] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 03/11/2019] [Indexed: 01/01/2023] Open
Abstract
Evodiamine is a major ingredient of the plant Evodia rutaecarpa, which has long been used for treating infection-related diseases including diarrhea, beriberi and oral ulcer, but the underlying mechanism is unclear. Here we aimed to explore whether evodiamine influenced NLRP3 (NLR family, pyrin containing domain 3) inflammasome activation in macrophages, which is a critical mechanism for defending the host against pathogenic infections. We uncovered that evodiamine dose-dependently enhanced NLRP3 inflammasome activation in lipopolysaccharide-primed macrophages, as indicated by increased interleukin (IL)-1β production and caspase-1 cleavage, accompanied by increased ASC speck formation and pyroptosis. Mechanistically, evodiamine induced acetylation of α-tubulin around the microtubule organization center (indicated by γ-tubulin) in lipopolysaccharide-primed macrophages. Such evodiamine-mediated increases in NLRP3 activation and pyroptosis were attenuated by activators of α-tubulin deacetylase, resveratrol and NAD+, or dynein-specific inhibitor ciliobrevin A. Small interfering RNA knockdown of αTAT1 (the gene encoding α-tubulin N-acetyltransferase) expression, which reduced α-tubulin acetylation, also diminished evodiamine-mediated augmentation of NLRP3 activation and pyroptosis. Evodiamine also enhanced NLRP3-mediated production of IL-1β and neutrophil recruitment in vivo. Moreover, evodiamine administration evidently improved survival of mice with lethal bacterial infection, accompanied by increased production of IL-1β and interferon-γ, decreased bacterial load, and dampened liver inflammation. Resveratrol treatment reversed evodiamine-induced increases of IL-1β and interferon-γ, and decreased bacterial clearance in mice. Collectively, our results indicated that evodiamine augmented the NLRP3 inflammasome activation through inducing α-tubulin acetylation, thereby conferring intensified innate immunity against bacterial infection.
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Affiliation(s)
- Chen-Guang Li
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Qiong-Zhen Zeng
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Ming-Ye Chen
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Li-Hui Xu
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Cheng-Cheng Zhang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Feng-Yi Mai
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Chen-Ying Zeng
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Xian-Hui He
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Dong-Yun Ouyang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
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40
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Li FJ, Starrs L, Burgio G. Tug of war between Acinetobacter baumannii and host immune responses. Pathog Dis 2019; 76:5290314. [PMID: 30657912 DOI: 10.1093/femspd/ftz004] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/16/2019] [Indexed: 02/06/2023] Open
Abstract
Acinetobacter baumannii is an emerging nosocomial, opportunistic pathogen with growing clinical significance. Acinetobacter baumannii has an exceptional ability to rapidly develop drug resistance and to adhere to abiotic surfaces, including medical equipment, significantly promoting bacterial spread and also limiting our ability to control A. baumannii infections. Consequently, A. baumannii is frequently responsible for ventilator-associated pneumonia in clinical settings. In order to develop an effective treatment strategy, understanding host-pathogen interactions during A. baumannii infection is crucial. Various A. baumannii virulence factors have been identified as targets of host innate pattern-recognition receptors, which leads to activation of downstream inflammasomes to develop inflammatory responses, and the recruitment of innate immune effectors against A. baumannii infection. To counteract host immune attack, A. baumannii regulates its expression of different virulence factors. This review summarizes the significance of mechanisms of host-bacteria interaction, as well as different bacteria and host defense mechanisms during A. baumannii infection.
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Affiliation(s)
- Fei-Ju Li
- Department of Immunology and infectious Diseases, John Curtin School of Medical Research, Australian National University, 131 Garran Road, Acton, ACT 2601, Australia
| | - Lora Starrs
- Department of Immunology and infectious Diseases, John Curtin School of Medical Research, Australian National University, 131 Garran Road, Acton, ACT 2601, Australia
| | - Gaetan Burgio
- Department of Immunology and infectious Diseases, John Curtin School of Medical Research, Australian National University, 131 Garran Road, Acton, ACT 2601, Australia
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41
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Zhang CC, Li CG, Wang YF, Xu LH, He XH, Zeng QZ, Zeng CY, Mai FY, Hu B, Ouyang DY. Chemotherapeutic paclitaxel and cisplatin differentially induce pyroptosis in A549 lung cancer cells via caspase-3/GSDME activation. Apoptosis 2019; 24:312-325. [DOI: 10.1007/s10495-019-01515-1] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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42
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Jiang C, Jiang L, Li Q, Liu X, Zhang T, Dong L, Liu T, Liu L, Hu G, Sun X, Jiang L. Acrolein induces NLRP3 inflammasome-mediated pyroptosis and suppresses migration via ROS-dependent autophagy in vascular endothelial cells. Toxicology 2018; 410:26-40. [DOI: 10.1016/j.tox.2018.09.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/31/2018] [Accepted: 09/06/2018] [Indexed: 12/20/2022]
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43
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Xia Y, Chen S, Zhu G, Huang R, Yin Y, Ren W. Betaine Inhibits Interleukin-1β Production and Release: Potential Mechanisms. Front Immunol 2018; 9:2670. [PMID: 30515160 PMCID: PMC6255979 DOI: 10.3389/fimmu.2018.02670] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 10/29/2018] [Indexed: 12/25/2022] Open
Abstract
Betaine is a critical nutrient for mammal health, and has been found to alleviate inflammation by lowering interleukin (IL)-1β secretion; however, the underlying mechanisms by which betaine inhibits IL-1β secretion remain to be uncovered. In this review, we summarize the current understanding about the mechanisms of betaine in IL-1β production and release. For IL-1β production, betaine affects canonical and non-canonical inflammasome-mediated processing of IL-1β through signaling pathways, such as NF-κB, NLRP3 and caspase-8/11. For IL-1β release, betaine inhibits IL-1β release through blocking the exocytosis of IL-1β-containing secretory lysosomes, reducing the shedding of IL-1β-containing plasma membrane microvesicles, suppressing the exocytosis of IL-1β-containing exosomes, and attenuating the passive efflux of IL-1β across hyperpermeable plasma membrane during pyroptotic cell death, which are associated with ERK1/2/PLA2 and caspase-8/A-SMase signaling pathways. Collectively, this review highlights the anti-inflammatory property of betaine by inhibiting the production and release of IL-1β, and indicates the potential application of betaine supplementation as an adjuvant therapy in various inflammatory diseases associating with IL-1β secretion.
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Affiliation(s)
- Yaoyao Xia
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China.,Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Shuai Chen
- University of Chinese Academy of Sciences, Beijing, China.,Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Guoqiang Zhu
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoo Noses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Ruilin Huang
- Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Yulong Yin
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, China.,Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China.,Academics Working Station at The First Affiliated Hospital, Changsha Medical University, Changsha, China
| | - Wenkai Ren
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, China.,Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoo Noses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
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44
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Hara H, Seregin SS, Yang D, Fukase K, Chamaillard M, Alnemri ES, Inohara N, Chen GY, Núñez G. The NLRP6 Inflammasome Recognizes Lipoteichoic Acid and Regulates Gram-Positive Pathogen Infection. Cell 2018; 175:1651-1664.e14. [PMID: 30392956 DOI: 10.1016/j.cell.2018.09.047] [Citation(s) in RCA: 172] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 03/26/2018] [Accepted: 09/21/2018] [Indexed: 02/08/2023]
Abstract
The activator and composition of the NLRP6 inflammasome remain poorly understood. We find that lipoteichoic acid (LTA), a molecule produced by Gram-positive bacteria, binds and activates NLRP6. In response to cytosolic LTA or infection with Listeria monocytogenes, NLRP6 recruited caspase-11 and caspase-1 via the adaptor ASC. NLRP6 activation by LTA induced processing of caspase-11, which promoted caspase-1 activation and interleukin-1β (IL-1β)/IL-18 maturation in macrophages. Nlrp6-/- and Casp11-/- mice were less susceptible to L. monocytogenes infection, which was associated with reduced pathogen loads and impaired IL-18 production. Administration of IL-18 to Nlrp6-/- or Casp11-/- mice restored the susceptibility of mutant mice to L. monocytogenes infection. These results reveal a previously unrecognized innate immunity pathway triggered by cytosolic LTA that is sensed by NLRP6 and exacerbates systemic Gram-positive pathogen infection via the production of IL-18.
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Affiliation(s)
- Hideki Hara
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
| | - Sergey S Seregin
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Dahai Yang
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Mathias Chamaillard
- CIIL-Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019-UMR 8204, F-59000, Lille, France
| | - Emad S Alnemri
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Naohiro Inohara
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Grace Y Chen
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Gabriel Núñez
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
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45
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Thiel CS, Tauber S, Christoffel S, Huge A, Lauber BA, Polzer J, Paulsen K, Lier H, Engelmann F, Schmitz B, Schütte A, Raig C, Layer LE, Ullrich O. Rapid coupling between gravitational forces and the transcriptome in human myelomonocytic U937 cells. Sci Rep 2018; 8:13267. [PMID: 30185876 PMCID: PMC6125427 DOI: 10.1038/s41598-018-31596-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 08/22/2018] [Indexed: 01/06/2023] Open
Abstract
The gravitational force has been constant throughout Earth's evolutionary history. Since the cell nucleus is subjected to permanent forces induced by Earth's gravity, we addressed the question, if gene expression homeostasis is constantly shaped by the gravitational force on Earth. We therefore investigated the transcriptome in force-free conditions of microgravity, determined the time frame of initial gravitational force-transduction to the transcriptome and assessed the role of cation channels. We combined a parabolic flight experiment campaign with a suborbital ballistic rocket experiment employing the human myelomonocytic cell line U937 and analyzed the whole gene transcription by microarray, using rigorous controls for exclusion of effects not related to gravitational force and cross-validation through two fully independent research campaigns. Experiments with the wide range ion channel inhibitor SKF-96365 in combination with whole transcriptome analysis were conducted to study the functional role of ion channels in the transduction of gravitational forces at an integrative level. We detected profound alterations in the transcriptome already after 20 s of microgravity or hypergravity. In microgravity, 99.43% of all initially altered transcripts adapted after 5 min. In hypergravity, 98.93% of all initially altered transcripts adapted after 75 s. Only 2.4% of all microgravity-regulated transcripts were sensitive to the cation channel inhibitor SKF-96365. Inter-platform comparison of differentially regulated transcripts revealed 57 annotated gravity-sensitive transcripts. We assume that gravitational forces are rapidly and constantly transduced into the nucleus as omnipresent condition for nuclear and chromatin structure as well as homeostasis of gene expression.
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Affiliation(s)
- Cora S Thiel
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland.
- Department of Machine Design, Engineering Design and Product Development, Institute of Mechanical Engineering, Otto-von-Guericke-University Magdeburg, Universitätsplatz 2, 39106, Magdeburg, Germany.
| | - Svantje Tauber
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
- Department of Machine Design, Engineering Design and Product Development, Institute of Mechanical Engineering, Otto-von-Guericke-University Magdeburg, Universitätsplatz 2, 39106, Magdeburg, Germany
| | - Swantje Christoffel
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
- Department of Machine Design, Engineering Design and Product Development, Institute of Mechanical Engineering, Otto-von-Guericke-University Magdeburg, Universitätsplatz 2, 39106, Magdeburg, Germany
| | - Andreas Huge
- Core Facility Genomic, Medical Faculty of Muenster, University of Muenster, Albert-Schweitzer-Campus 1, D3, Domagstrasse 3, 48149, Muenster, Germany
| | - Beatrice A Lauber
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Jennifer Polzer
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Katrin Paulsen
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Hartwin Lier
- KEK GmbH, Kemberger Str. 5, 06905, Bad Schmiedeberg, Germany
| | - Frank Engelmann
- KEK GmbH, Kemberger Str. 5, 06905, Bad Schmiedeberg, Germany
- Ernst-Abbe-Hochschule Jena, Carl-Zeiss-Promenade 2, 07745, Jena, Germany
| | | | | | - Christiane Raig
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Liliana E Layer
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Oliver Ullrich
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland.
- Department of Machine Design, Engineering Design and Product Development, Institute of Mechanical Engineering, Otto-von-Guericke-University Magdeburg, Universitätsplatz 2, 39106, Magdeburg, Germany.
- Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland.
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Samanta S, Zhou Z, Rajasingh S, Panda A, Sampath V, Rajasingh J. DNMT and HDAC inhibitors together abrogate endotoxemia mediated macrophage death by STAT3-JMJD3 signaling. Int J Biochem Cell Biol 2018; 102:117-127. [PMID: 30010012 PMCID: PMC6309960 DOI: 10.1016/j.biocel.2018.07.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 06/30/2018] [Accepted: 07/11/2018] [Indexed: 12/11/2022]
Abstract
Acute lung injury (ALI) is a common complication of sepsis that often leads to fatal lung disease without effective therapies. It is known that bone marrow derived macrophages are important in resolving the inflammation and maintaining tissue homeostasis. Here, we hypothesize that treatment in combination of DNA methyl transferase inhibitor (DNMTi) 5-Aza 2-deoxycytidine (Aza) and histone deacetylase inhibitor (HDACi) Trichostatin A (TSA) mitigates the inflammation induced pyroptosis and apoptosis during endotoxemia induced ALI. To test this hypothesis, the mice challenged with a sublethal dose of LPS followed by one-hour post-treatment with a single dose of Aza and TSA intraperitoneally showed a substantial attenuation of apoptosis and inflammation. Importantly, we observed significant changes in the mitochondrial membrane structure, and lower levels of DNA fragmentation, reduced expression of apoptotic and pyroptotic genes both transcriptionally and translationally in LPS induced BMDMs treated by a combination of Aza and TSA than in LPS-induced BMDMs treated with either drug alone. The protection was mediated by an inhibition of JNK-ERK and STAT3-JMJD3 activated pathways. Thus, targeting these important signaling pathways with the combination of Aza and TSA would be a good treatment modality for ALI.
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Affiliation(s)
- Saheli Samanta
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Zhigang Zhou
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA; Department of Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, 201620, China
| | - Sheeja Rajasingh
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Arunima Panda
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Venkatesh Sampath
- Department of Pediatrics, Division of Neonatology, Children's Mercy Hospital, Kansas City, MO, USA
| | - Johnson Rajasingh
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA; Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA.
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47
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Kang R, Zeng L, Zhu S, Xie Y, Liu J, Wen Q, Cao L, Xie M, Ran Q, Kroemer G, Wang H, Billiar TR, Jiang J, Tang D. Lipid Peroxidation Drives Gasdermin D-Mediated Pyroptosis in Lethal Polymicrobial Sepsis. Cell Host Microbe 2018; 24:97-108.e4. [PMID: 29937272 PMCID: PMC6043361 DOI: 10.1016/j.chom.2018.05.009] [Citation(s) in RCA: 366] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/25/2018] [Accepted: 05/18/2018] [Indexed: 12/18/2022]
Abstract
Sepsis is a life-threatening condition caused by pathogen infection and associated with pyroptosis. Pyroptosis occurs upon activation of proinflammatory caspases and their subsequent cleavage of gasdermin D (GSDMD), resulting in GSDMD N-terminal fragments that form membrane pores to induce cell lysis. Here, we show that antioxidant defense enzyme glutathione peroxidase 4 (GPX4) and its ability to decrease lipid peroxidation, negatively regulate macrophage pyroptosis, and septic lethality in mice. Conditional Gpx4 knockout in myeloid lineage cells increases lipid peroxidation-dependent caspase-11 activation and GSDMD cleavage. The resultant N-terminal GSDMD fragments then trigger macrophage pyroptotic cell death in a phospholipase C gamma 1 (PLCG1)-dependent fashion. Administration of the antioxidant vitamin E that reduces lipid peroxidation, chemical inhibition of PLCG1, or genetic Caspase-11 deletion or Gsdmd inactivation prevents polymicrobial sepsis in Gpx4-/- mice. Collectively, this study suggests that lipid peroxidation drives GSDMD-mediated pyroptosis and hence constitutes a potential therapeutic target for lethal infection.
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Affiliation(s)
- Rui Kang
- The Third Affiliated Hospital, Center for DAMP Biology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Protein Modification and Degradation Laboratory of Guangdong Higher Education Institutes, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510510, China; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Ling Zeng
- State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery, Research Institute for Traffic Medicine of People's Liberation Army, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Shan Zhu
- The Third Affiliated Hospital, Center for DAMP Biology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Protein Modification and Degradation Laboratory of Guangdong Higher Education Institutes, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510510, China
| | - Yangchun Xie
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410008, China
| | - Jiao Liu
- The Third Affiliated Hospital, Center for DAMP Biology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Protein Modification and Degradation Laboratory of Guangdong Higher Education Institutes, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510510, China
| | - Qirong Wen
- The Third Affiliated Hospital, Center for DAMP Biology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Protein Modification and Degradation Laboratory of Guangdong Higher Education Institutes, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510510, China
| | - Lizhi Cao
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Min Xie
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Qitao Ran
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, Research Service, South Texas Veterans Health Care System, San Antonio, TX 78229, USA
| | - Guido Kroemer
- Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France; Equipe 11 Labellisée Ligue Nationale Contre le Cancer, Centre de Recherche des Cordeliers, 75006 Paris, France; Institut National de La Santé et de La Recherche Médicale, U1138 Paris, France; Université Pierre et Marie Curie, 75006 Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, 94800 Villejuif, France; Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, 75015 Paris, France; Department of Women's and Children's Health, Karolinska University Hospital, 17176 Stockholm, Sweden
| | - Haichao Wang
- Laboratory of Emergency Medicine, North Shore University Hospital, The Feinstein Institute for Medical Research, Manhasset, NY 11030, USA
| | - Timothy R Billiar
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Jianxin Jiang
- State Key Laboratory of Trauma, Burns and Combined Injury, Research Institute of Surgery, Research Institute for Traffic Medicine of People's Liberation Army, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
| | - Daolin Tang
- The Third Affiliated Hospital, Center for DAMP Biology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Protein Modification and Degradation Laboratory of Guangdong Higher Education Institutes, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510510, China; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA.
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48
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Ramirez GA, Coletto LA, Sciorati C, Bozzolo EP, Manunta P, Rovere-Querini P, Manfredi AA. Ion Channels and Transporters in Inflammation: Special Focus on TRP Channels and TRPC6. Cells 2018; 7:E70. [PMID: 29973568 PMCID: PMC6070975 DOI: 10.3390/cells7070070] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 06/27/2018] [Accepted: 06/29/2018] [Indexed: 12/14/2022] Open
Abstract
Allergy and autoimmune diseases are characterised by a multifactorial pathogenic background. Several genes involved in the control of innate and adaptive immunity have been associated with diseases and variably combine with each other as well as with environmental factors and epigenetic processes to shape the characteristics of individual manifestations. Systemic or local perturbations in salt/water balance and in ion exchanges between the intra- and extracellular spaces or among tissues play a role. In this field, usually referred to as elementary immunology, novel evidence has been recently acquired on the role of members of the transient potential receptor (TRP) channel family in several cellular mechanisms of potential significance for the pathophysiology of the immune response. TRP canonical channel 6 (TRPC6) is emerging as a functional element for the control of calcium currents in immune-committed cells and target tissues. In fact, TRPC6 influences leukocytes’ tasks such as transendothelial migration, chemotaxis, phagocytosis and cytokine release. TRPC6 also modulates the sensitivity of immune cells to apoptosis and influences tissue susceptibility to ischemia-reperfusion injury and excitotoxicity. Here, we provide a view of the interactions between ion exchanges and inflammation with a focus on the pathogenesis of immune-mediated diseases and potential future therapeutic implications.
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Affiliation(s)
- Giuseppe A Ramirez
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Lavinia A Coletto
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Clara Sciorati
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Enrica P Bozzolo
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Paolo Manunta
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Nephrology, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Patrizia Rovere-Querini
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
| | - Angelo A Manfredi
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
- Division of Immunology, Transplantation and Infectious Immunity, IRCCS Ospedale San Raffaele, 20132 Milan, Italy.
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49
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Santoni G, Morelli MB, Amantini C, Santoni M, Nabissi M, Marinelli O, Santoni A. "Immuno-Transient Receptor Potential Ion Channels": The Role in Monocyte- and Macrophage-Mediated Inflammatory Responses. Front Immunol 2018; 9:1273. [PMID: 29928281 PMCID: PMC5997787 DOI: 10.3389/fimmu.2018.01273] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/22/2018] [Indexed: 01/19/2023] Open
Abstract
Monocytes and macrophages play important roles in health and disease. They have a central role in protecting the host, as they clear pathogens and modulate other immune cell functions through the production of regulatory molecules. Their functions include immune surveillance, bacterial killing, tissue remodeling and repair, clearance of cell debris and more. Macrophages can have beneficial and detrimental effects on the outcome of several diseases depending on the microenvironment and the activation state of cells. Over the past few years, there has been an increasing interest in the expression and functions of ion channels, in particular of transient receptor potential (TRP) channel family in immune cells. The 30 members of mammalian TRP channels are subdivided into TRPC, TRPV, TRPM, TRPML, TRPP, and TRPA superfamily, and several members of TRP subfamily have been found to be functionally expressed in monocytes and macrophages. TRP are cation-selective channels that are weakly voltage-sensitive and diversely gated by temperature, mechanical force, electrophiles, ligands, and internal cues, such as membrane composition and pH, contributing to immune and inflammatory responses. The TRP channels play major roles in controlling several monocyte and macrophage functions such as phagocytosis, production of chemokines and cytokines, cell survival, polarization and so forth. In addition, they can also be potential therapeutic targets in a variety of inflammatory diseases. Thus, the goal of this review is to describe the role of TRP channels in the control of monocyte–macrophage functions in inflammatory and immune-mediated diseases.
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Affiliation(s)
- Giorgio Santoni
- Section of Experimental Medicine, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Maria Beatrice Morelli
- Section of Experimental Medicine, School of Pharmacy, University of Camerino, Camerino, Italy.,Department of Molecular Medicine, Sapienza University, Rome, Italy
| | - Consuelo Amantini
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Matteo Santoni
- Clinical Oncology Unit, Macerata Hospital, Macerata, Italy
| | - Massimo Nabissi
- Section of Experimental Medicine, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Oliviero Marinelli
- Section of Experimental Medicine, School of Pharmacy, University of Camerino, Camerino, Italy.,School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Angela Santoni
- Department of Molecular Medicine, Sapienza University, Rome, Italy.,Neuromed I.R.C.C.S. - Istituto Neurologico Mediterraneo, Pozzilli, Italy
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50
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Li CG, Yan L, Jing YY, Xu LH, Liang YD, Wei HX, Hu B, Pan H, Zha QB, Ouyang DY, He XH. Berberine augments ATP-induced inflammasome activation in macrophages by enhancing AMPK signaling. Oncotarget 2018; 8:95-109. [PMID: 27980220 PMCID: PMC5352208 DOI: 10.18632/oncotarget.13921] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 12/01/2016] [Indexed: 12/14/2022] Open
Abstract
The isoquinoline alkaloid berberine possesses many pharmacological activities including antibacterial infection. Although the direct bactericidal effect of berberine has been documented, its influence on the antibacterial functions of macrophages is largely unknown. As inflammasome activation in macrophages is important for the defense against bacterial infection, we aimed to investigate the influence of berberine on inflammasome activation in murine macrophages. Our results showed that berberine significantly increased ATP-induced inflammasome activation as reflected by enhanced pyroptosis as well as increased release of caspase-1p10 and mature interleukin-1β (IL-1β) in macrophages. Such effects of berberine could be suppressed by AMP-activated protein kinase (AMPK) inhibitor compound C or by knockdown of AMPKα expression, indicating the involvement of AMPK signaling in this process. In line with increased IL-1β release, the ability of macrophages to kill engulfed bacteria was also intensified by berberine. This was corroborated by the in vivo finding that the peritoneal live bacterial load was decreased by berberine treatment. Moreover, berberine administration significantly improved survival of bacterial infected mice, concomitant with increased IL-1β levels and elevated neutrophil recruitment in the peritoneal cavity. Collectively, these data suggested that berberine could enhance bacterial killing by augmenting inflammasome activation in macrophages through AMPK signaling.
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Affiliation(s)
- Chen-Guang Li
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Liang Yan
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Yan-Yun Jing
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Li-Hui Xu
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Yi-Dan Liang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Hong-Xia Wei
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Bo Hu
- Department of Nephrology, the First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Hao Pan
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Qing-Bing Zha
- Department of Fetal Medicine, the First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Dong-Yun Ouyang
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Xian-Hui He
- Department of Immunobiology, College of Life Science and Technology, Jinan University, Guangzhou, China
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