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Alipour S, Mardi A, Shajari N, Kazemi T, Sadeghi MR, Ahmadian Heris J, Masoumi J, Baradaran B. Unmasking the NLRP3 inflammasome in dendritic cells as a potential therapeutic target for autoimmunity, cancer, and infectious conditions. Life Sci 2024; 348:122686. [PMID: 38710282 DOI: 10.1016/j.lfs.2024.122686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 04/13/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024]
Abstract
Proper and functional immune response requires a complex interaction between innate and adaptive immune cells, which dendritic cells (DCs) are the primary actors in this coordination as professional antigen-presenting cells. DCs are armed with numerous pattern recognition receptors (PRRs) such as nucleotide-binding and oligomerization domain-like receptors (NLRs) like NLRP3, which influence the development of their activation state upon sensation of ligands. NLRP3 is a crucial component of the immune system for protection against tumors and infectious agents, because its activation leads to the assembly of inflammasomes that cause the formation of active caspase-1 and stimulate the maturation and release of proinflammatory cytokines. But, when NLRP3 becomes overactivated, it plays a pathogenic role in the progression of several autoimmune disorders. So, NLRP3 activation is strictly regulated by diverse signaling pathways that are mentioned in detail in this review. Furthermore, the role of NLRP3 in all of the diverse immune cells' subsets is briefly mentioned in this study because NLRP3 plays a pivotal role in modulating other immune cells which are accompanied by DCs' responses and subsequently influence differentiation of T cells to diverse T helper subsets and even impact on cytotoxic CD8+ T cells' responses. This review sheds light on the functional and therapeutic role of NLRP3 in DCs and its contribution to the occurrence and progression of autoimmune disorders, prevention of diverse tumors' development, and recognition and annihilation of various infectious agents. Furthermore, we highlight NLRP3 targeting potential for improving DC-based immunotherapeutic approaches, to be used for the benefit of patients suffering from these disorders.
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Affiliation(s)
- Shiva Alipour
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirhossein Mardi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Neda Shajari
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Tohid Kazemi
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Sadeghi
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Javad Masoumi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Liu Z, Deligen B, Han Z, Gerile C, Da A. Integrated sequence-based genomic, transcriptomic, and methylation characterization of the susceptibility to tuberculosis in monozygous twins. Heliyon 2024; 10:e31712. [PMID: 38845983 PMCID: PMC11153169 DOI: 10.1016/j.heliyon.2024.e31712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 05/08/2024] [Accepted: 05/21/2024] [Indexed: 06/09/2024] Open
Abstract
Background Tuberculosis (TB) is a complex disease with a spectrum of outcomes for more than six decades; however, the genomic and epigenetic mechanisms underlying the highly heritable susceptibility to TB remain unclear. Methods Integrated sequence-based genomic, transcriptomic, and methylation analyses were conducted to identity the genetic factors associated with susceptibility to TB in two pairs of Mongolian monozygous twins. In this study, whole-genome sequencing was employed to analyze single nucleotide polymorphisms (SNPs), insertions and deletions (InDels), and copy number variations (CNVs). Gene expression was assessed through RNA sequencing, and methylation patterns were examined using the Illumina Infinium Methylation EPIC BeadChip. The gene-gene interaction network was analyzed using differentially expressed genes. Results Our study revealed no significant difference in SNP and InDel profiles between participants with and without TB. Genes with CNVs were involved in human immunity (human leukocyte antigen [HLA] family and interferon [IFN] pathway) and the inflammatory response. Different DNA methylation patterns and mRNA expression profiles were observed in genes participating in immunity (HLA family) and inflammatory responses (IFNA, interleukin 10 receptor [IL-10R], IL-12B, Toll-like receptor, and IL-1B). Conclusions The results of this study suggested that susceptibility to TB is associated with transcriptional and epigenetic alternations of genes involved in immune and inflammatory responses. The genes in the HLA family (HLA-A, HLA-B, and HLA-DRB1) and IFN pathway (IFN-α and IFN-γ) may play major roles in susceptibility to TB.
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Affiliation(s)
- Zhi Liu
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, 028007, Inner Mongolia, China
| | - Batu Deligen
- Institute of Mongolian Medicine Pharmacology, Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, 028007, Inner Mongolia, China
| | - Zhiqiang Han
- Institute of Mongolian Medicine Pharmacology, Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, 028007, Inner Mongolia, China
| | - Chaolumen Gerile
- Department of Internal Medicine, Xilinguole Meng Mongolian General Hospital, Xilinhaote, 026000, Inner Mongolia, China
| | - An Da
- Institute of Mongolian Medicine Pharmacology, Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, 028007, Inner Mongolia, China
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Haque I, Thapa P, Burns DM, Zhou J, Sharma M, Sharma R, Singh V. NLRP3 Inflammasome Inhibitors for Antiepileptogenic Drug Discovery and Development. Int J Mol Sci 2024; 25:6078. [PMID: 38892264 PMCID: PMC11172514 DOI: 10.3390/ijms25116078] [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: 05/07/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Epilepsy is one of the most prevalent and serious brain disorders and affects over 70 million people globally. Antiseizure medications (ASMs) relieve symptoms and prevent the occurrence of future seizures in epileptic patients but have a limited effect on epileptogenesis. Addressing the multifaceted nature of epileptogenesis and its association with the Nod-like receptor family pyrin domain containing 3 (NLRP3) inflammasome-mediated neuroinflammation requires a comprehensive understanding of the underlying mechanisms of these medications for the development of targeted therapeutic strategies beyond conventional antiseizure treatments. Several types of NLRP3 inhibitors have been developed and their effect has been validated both in in vitro and in vivo models of epileptogenesis. In this review, we discuss the advances in understanding the regulatory mechanisms of NLRP3 activation as well as progress made, and challenges faced in the development of NLRP3 inhibitors for the treatment of epilepsy.
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Affiliation(s)
- Inamul Haque
- Research and Development Service, Kansas City Veterans Affairs Medical Center, Kansas City, MO 64128, USA; (P.T.); (D.M.B.); (M.S.); (R.S.)
- Department of Math, Science and Business Technology, Kansas City Kansas Community College, Kansas City, KS 66112, USA
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Pritam Thapa
- Research and Development Service, Kansas City Veterans Affairs Medical Center, Kansas City, MO 64128, USA; (P.T.); (D.M.B.); (M.S.); (R.S.)
- Drug Discovery Program, Midwest Veterans’ Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
| | - Douglas M. Burns
- Research and Development Service, Kansas City Veterans Affairs Medical Center, Kansas City, MO 64128, USA; (P.T.); (D.M.B.); (M.S.); (R.S.)
| | - Jianping Zhou
- Renal Research Laboratory, Kansas City VA Medical Center, Kansas City, MO 64128, USA;
| | - Mukut Sharma
- Research and Development Service, Kansas City Veterans Affairs Medical Center, Kansas City, MO 64128, USA; (P.T.); (D.M.B.); (M.S.); (R.S.)
- Drug Discovery Program, Midwest Veterans’ Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
- Renal Research Laboratory, Kansas City VA Medical Center, Kansas City, MO 64128, USA;
| | - Ram Sharma
- Research and Development Service, Kansas City Veterans Affairs Medical Center, Kansas City, MO 64128, USA; (P.T.); (D.M.B.); (M.S.); (R.S.)
| | - Vikas Singh
- Research and Development Service, Kansas City Veterans Affairs Medical Center, Kansas City, MO 64128, USA; (P.T.); (D.M.B.); (M.S.); (R.S.)
- Drug Discovery Program, Midwest Veterans’ Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
- Division of Neurology, Kansas City VA Medical Center, Kansas City, MO 64128, USA
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Koller BH, Nguyen M, Snouwaert JN, Gabel CA, Ting JPY. Species-specific NLRP3 regulation and its role in CNS autoinflammatory diseases. Cell Rep 2024; 43:113852. [PMID: 38427558 DOI: 10.1016/j.celrep.2024.113852] [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: 09/27/2023] [Revised: 01/16/2024] [Accepted: 02/07/2024] [Indexed: 03/03/2024] Open
Abstract
The NLRP3 inflammasome is essential for caspase-1 activation and the release of interleukin (IL)-1β, IL-18, and gasdermin-D in myeloid cells. However, research on species-specific NLRP3's physiological impact is limited. We engineer mice with the human NLRP3 gene, driven by either the human or mouse promoter, via syntenic replacement at the mouse Nlrp3 locus. Both promoters facilitate hNLRP3 expression in myeloid cells, but the mouse promoter responds more robustly to LPS. Investigating the disease impact of differential NLRP3 regulation, we introduce the D305N gain-of-function mutation into both humanized lines. Chronic inflammation is evident with both promoters; however, CNS outcomes vary significantly. Despite poor response to LPS, the human promoter results in D305N-associated aseptic meningitis, mirroring human pathology. The mouse promoter, although leading to increased CNS expression post-LPS, does not induce meningitis in D305N mutants. Therefore, human-like NLRP3 expression may be crucial for accurate modeling of its role in disease pathogenesis.
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Affiliation(s)
- Beverly H Koller
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
| | - MyTrang Nguyen
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - John N Snouwaert
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | | | - Jenny P-Y Ting
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Center for Translational Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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Li L, Sun L, Liang X, Ou Q, Tan X, Li F, Lai Z, Ding C, Chen H, Yu X, Wu Q, Wei J, Wu F, Wang L. Maternal betaine supplementation ameliorates fatty liver disease in offspring mice by inhibiting hepatic NLRP3 inflammasome activation. Nutr Res Pract 2023; 17:1084-1098. [PMID: 38053832 PMCID: PMC10694418 DOI: 10.4162/nrp.2023.17.6.1084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/26/2023] [Accepted: 08/14/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND/OBJECTIVES Previous research has shown maternal betaine supplementation alleviates fetal-derived hepatic steatosis. Therefore, this study examined the anti-inflammatory effect of maternal betaine intake in offspring mice and its mechanism. MATERIALS/METHODS Female C57BL/6J mice and their offspring were randomly divided into 3 groups according to the treatment received during gestation and lactation: control diet (CD), fatty liver disease (FLD), and fatty liver disease + 1% betaine (FLD-BET). The FLD group was given a high-fat diet and streptozotocin (HFD + STZ), and the FLD-BET group was treated with HFD + STZ + 1% betaine. After weaning, the offspring mice were given a normal diet for 5 weeks and then dissected to measure the relevant indexes. RESULTS Compared to the CD group, the offspring mice in the FLD group revealed obvious hepatic steatosis and increased serum levels of alanine aminotransferase, interleukin (IL)-6, and tumor necrosis factor (TNF)-α; maternal betaine supplementation reversed these changes. The hepatic mRNA expression levels of IL-6, IL-18, and Caspase-1 were significantly higher in the FLD group than in the CD group. Maternal betaine supplementation reduced the expression of IL-1β, IL-6, IL-18, and apoptosis-associated speck-like protein containing C-terminal caspase recruitment domain (ASC). Maternal betaine supplementation also reversed the increasing protein expressions of nitric oxide dioxygenase-like receptor family pyrin domain containing 3 (NLRP3), ASC, Caspase-1, IL-1β, and IL-18 in offspring mice exposed to HFD + STZ. Maternal betaine supplementation decreased the homocysteine (Hcy) and s-adenosine homocysteine (SAH) levels significantly in the livers. Furthermore, the hepatic Hcy concentrations showed significant inverse relationships with the mRNA expression of TNF-α, NLRP3, ASC, and IL-18. The hepatic SAH concentration was inversely associated with the IL-1β mRNA expression. CONCLUSIONS The lipotropic and anti-inflammatory effect of maternal betaine supplementation may be associated with the inhibition of NLRP3 inflammasome in the livers of the offspring mice.
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Affiliation(s)
- Lun Li
- Department of Delivery Room, Guangzhou Women and Children’s Medical Center, Guangzhou 510623, People’s Republic of China
| | - Liuqiao Sun
- Department of Maternal, Child and Adolescent Health, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Xiaoping Liang
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Qian Ou
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Xuying Tan
- Department of Child Health Care, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou 510623, People’s Republic of China
| | - Fangyuan Li
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Zhiwei Lai
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Chenghe Ding
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Hangjun Chen
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Xinxue Yu
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Qiongmei Wu
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Jun Wei
- Department of Science and Technology, Guangzhou Customs, Guangzhou 510623, People’s Republic of China
| | - Feng Wu
- Department of Science and Technology, Guangzhou Customs, Guangzhou 510623, People’s Republic of China
| | - Lijun Wang
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
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Zhang J, Lee PY, Aksentijevich I, Zhou Q. How to Build a Fire: The Genetics of Autoinflammatory Diseases. Annu Rev Genet 2023; 57:245-274. [PMID: 37562411 DOI: 10.1146/annurev-genet-030123-084224] [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] [Indexed: 08/12/2023]
Abstract
Systemic autoinflammatory diseases (SAIDs) are a heterogeneous group of disorders caused by excess activation of the innate immune system in an antigen-independent manner. Starting with the discovery of the causal gene for familial Mediterranean fever, more than 50 monogenic SAIDs have been described. These discoveries, paired with advances in immunology and genomics, have allowed our understanding of these diseases to improve drastically in the last decade. The genetic causes of SAIDs are complex and include both germline and somatic pathogenic variants that affect various inflammatory signaling pathways. We provide an overview of the acquired SAIDs from a genetic perspective and summarize the clinical phenotypes and mechanism(s) of inflammation, aiming to provide a comprehensive understanding of the pathogenesis of autoinflammatory diseases.
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Affiliation(s)
- Jiahui Zhang
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ivona Aksentijevich
- Inflammatory Disease Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA;
| | - Qing Zhou
- Life Sciences Institute, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China;
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7
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Sharma AK, Ismail N. Non-Canonical Inflammasome Pathway: The Role of Cell Death and Inflammation in Ehrlichiosis. Cells 2023; 12:2597. [PMID: 37998332 PMCID: PMC10670716 DOI: 10.3390/cells12222597] [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: 10/01/2023] [Revised: 11/01/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
Activating inflammatory caspases and releasing pro-inflammatory mediators are two essential functions of inflammasomes which are triggered in response to pathogen-associated molecular patterns (PAMPs) or danger-associated molecular patterns (DAMPs). The canonical inflammasome pathway involves the activation of inflammasome and its downstream pathway via the adaptor ASC protein, which causes caspase 1 activation and, eventually, the cleavage of pro-IL-1b and pro-IL-18. The non-canonical inflammasome pathway is induced upon detecting cytosolic lipopolysaccharide (LPS) by NLRP3 inflammasome in Gram-negative bacteria. The activation of NLRP3 triggers the cleavage of murine caspase 11 (human caspase 4 or caspase 5), which results in the formation of pores (via gasdermin) to cause pyroptosis. Ehrlichia is an obligately intracellular bacterium which is responsible for causing human monocytic ehrlichiosis (HME), a potentially lethal disease similar to toxic shock syndrome and septic shock syndrome. Several studies have indicated that canonical and non-canonical inflammasome activation is a crucial pathogenic mechanism that induces dysregulated inflammation and host cellular death in the pathophysiology of HME. Mechanistically, the activation of canonical and non-canonical inflammasome pathways affected by virulent Ehrlichia infection is due to a block in autophagy. This review aims to explore the significance of non-canonical inflammasomes in ehrlichiosis, and how the pathways involving caspases (with the exception of caspase 1) contribute to the pathophysiology of severe and fatal ehrlichiosis. Improving our understanding of the non-canonical inflammatory pathway that cause cell death and inflammation in ehrlichiosis will help the advancement of innovative therapeutic, preventative, and diagnostic approaches to the treatment of ehrlichiosis.
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Affiliation(s)
| | - Nahed Ismail
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL 60607, USA;
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Shaik MG, Joshi SV, Akunuri R, Rana P, Rahman Z, Polomoni A, Yaddanapudi VM, Dandekar MP, Srinivas N. Small molecule inhibitors of NLRP3 inflammasome and GSK-3β in the management of traumatic brain injury: A review. Eur J Med Chem 2023; 259:115718. [PMID: 37573828 DOI: 10.1016/j.ejmech.2023.115718] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 07/28/2023] [Accepted: 08/08/2023] [Indexed: 08/15/2023]
Abstract
Traumatic brain injury (TBI) is a debilitating mental condition which causes physical disability and morbidity worldwide. TBI may damage the brain by direct injury that subsequently triggers a series of neuroinflammatory events. The activation of NLRP3 inflammasome and dysregulated host immune system has been documented in various neurological disorders such as TBI, ischemic stroke and multiple sclerosis. The activation of NLRP3 post-TBI increases the production of pro-inflammatory cytokines and caspase-1, which are major drivers of neuroinflammation and apoptosis. Similarly, GSK-3β regulates apoptosis through tyrosine kinase and canonical Wnt signalling pathways. Thus, therapeutic targeting of NLRP3 inflammasome and GSK-3β has emerged as promising strategies for regulating the post-TBI neuroinflammation and neurobehavioral disturbances. In this review, we discuss the identification & development of several structurally diverse and pharmacologically interesting small molecule inhibitors for targeting the NLRP3 inflammasome and GSK-3β in the management of TBI.
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Affiliation(s)
- Mahammad Ghouse Shaik
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Swanand Vinayak Joshi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Ravikumar Akunuri
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India; Ellen and Ronald Caplan Cancer Center, The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Preeti Rana
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Ziaur Rahman
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, 500 037, India
| | - Anusha Polomoni
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Venkata Madhavi Yaddanapudi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Manoj P Dandekar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, 500 037, India.
| | - Nanduri Srinivas
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India.
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Brahadeeswaran S, Dasgupta T, Manickam V, Saraswathi V, Tamizhselvi R. NLRP3: a new therapeutic target in alcoholic liver disease. Front Immunol 2023; 14:1215333. [PMID: 37520548 PMCID: PMC10374212 DOI: 10.3389/fimmu.2023.1215333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/28/2023] [Indexed: 08/01/2023] Open
Abstract
The liver is in charge of a wide range of critical physiological processes and it plays an important role in activating the innate immune system which elicits the inflammatory events. Chronic ethanol exposure disrupts hepatic inflammatory mechanism and leads to the release of proinflammatory mediators such as chemokines, cytokines and activation of inflammasomes. The mechanism of liver fibrosis/cirrhosis involve activation of NLRP3 inflammasome, leading to the destruction of hepatocytes and subsequent metabolic dysregulation in humans. In addition, increasing evidence suggests that alcohol intake significantly modifies liver epigenetics, promoting the development of alcoholic liver disease (ALD). Epigenetic changes including histone modification, microRNA-induced genetic modulation, and DNA methylation are crucial in alcohol-evoked cell signaling that affects gene expression in the hepatic system. Though we are at the beginning stage without having the entire print of epigenetic signature, it is time to focus more on NLRP3 inflammasome and epigenetic modifications. Here we review the novel aspect of ALD pathology linking to inflammation and highlighting the role of epigenetic modification associated with NLRP3 inflammasome and how it could be a therapeutic target in ALD.
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Affiliation(s)
- Subhashini Brahadeeswaran
- Department of Biosciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Tiasha Dasgupta
- Department of Biosciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Venkatraman Manickam
- Department of Biosciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Viswanathan Saraswathi
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, Veterans Affairs Medical Center, University of Nebraska Medical Center, Omaha, NE, United States
| | - Ramasamy Tamizhselvi
- Department of Biosciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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Damane BP, Mulaudzi TV, Kader SS, Naidoo P, Savkovic SD, Dlamini Z, Mkhize-Kwitshana ZL. Unraveling the Complex Interconnection between Specific Inflammatory Signaling Pathways and Mechanisms Involved in HIV-Associated Colorectal Oncogenesis. Cancers (Basel) 2023; 15:748. [PMID: 36765706 PMCID: PMC9913377 DOI: 10.3390/cancers15030748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/16/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023] Open
Abstract
The advancement of HIV treatment has led to increased life expectancy. However, people living with HIV (PLWH) are at a higher risk of developing colorectal cancers. Chronic inflammation has a key role in oncogenesis, affecting the initiation, promotion, transformation, and advancement of the disease. PLWH are prone to opportunistic infections that trigger inflammation. It has been documented that 15-20% of cancers are triggered by infections, and this percentage is expected to be increased in HIV co-infections. The incidence of parasitic infections such as helminths, with Ascariasis being the most common, is higher in HIV-infected individuals. Cancer cells and opportunistic infections drive a cascade of inflammatory responses which assist in evading immune surveillance, making them survive longer in the affected individuals. Their survival leads to a chronic inflammatory state which further increases the probability of oncogenesis. This review discusses the key inflammatory signaling pathways involved in disease pathogenesis in HIV-positive patients with colorectal cancers. The possibility of the involvement of co-infections in the advancement of the disease, along with highlights on signaling mechanisms that can potentially be utilized as therapeutic strategies to prevent oncogenesis or halt cancer progression, are addressed.
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Affiliation(s)
- Botle Precious Damane
- Department of Surgery, Steve Biko Academic Hospital, University of Pretoria, Hatfield 0028, South Africa
- Department of Medical Microbiology, School of Laboratory Medicine & Medical Sciences, Medical School Campus, College of Health Sciences, University of KwaZulu-Natal-Natal, Durban 4041, South Africa
| | - Thanyani Victor Mulaudzi
- Department of Surgery, Steve Biko Academic Hospital, University of Pretoria, Hatfield 0028, South Africa
| | - Sayed Shakeel Kader
- Department of Surgery, University of KwaZulu Natal, Congella, Durban 4013, South Africa
| | - Pragalathan Naidoo
- Department of Medical Microbiology, School of Laboratory Medicine & Medical Sciences, Medical School Campus, College of Health Sciences, University of KwaZulu-Natal-Natal, Durban 4041, South Africa
- SAMRC Research Capacity Development Division, South African Medical Research Council, Tygerberg, Cape Town 4091, South Africa
| | - Suzana D. Savkovic
- School of Medicine, Department of Pathology & Laboratory Medicine, 1430 Tulane Ave., SL-79, New Orleans, LA 70112, USA
| | - Zodwa Dlamini
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Hatfield 0028, South Africa
| | - Zilungile Lynette Mkhize-Kwitshana
- Department of Medical Microbiology, School of Laboratory Medicine & Medical Sciences, Medical School Campus, College of Health Sciences, University of KwaZulu-Natal-Natal, Durban 4041, South Africa
- SAMRC Research Capacity Development Division, South African Medical Research Council, Tygerberg, Cape Town 4091, South Africa
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Nitin S, Srinivasa R. B, Monica MS, Thyago H. C. Incursions by severe acute respiratory syndrome coronavirus-2 on the host anti-viral immunity during mild, moderate, and severe coronavirus disease 2019 disease. EXPLORATION OF MEDICINE 2022. [DOI: 10.37349/ei.2022.00084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in the human host can lead to various clinical manifestations, from symptomless carriers to mild to moderate to severe/critical illness. Therefore, the clinical classification of SARS-CoV-2 disease, based on severity, is a reliable way to predict disease states in SARS-CoV-2 infection. Recent studies on genomics, transcriptomics, epigenomics, and immunogenomics, along with spatial analysis of immune cells have delineated and defined the categorization of these disease groups using these high throughout technologies. These technologies hold the promise of providing not only a detailed but a holistic view of SARS-CoV-2-led pathogenesis. The main genomic, cellular, and immunologic features of each disease category, and what separates them spatially and molecularly are discussed in this brief review to provide a foundational spatial understanding of SARS-CoV-2 immunopathogenesis.
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Affiliation(s)
- Saksena Nitin
- Institute for Health and Sport, Victoria University, Footscray Campus, Melbourne VIC. 3011, Australia; Aegros Therapeutics Pty Ltd, Macquarie Park, Sydney 2019, Australia
| | - Bonam Srinivasa R.
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Miranda-Saksena Monica
- Westmead Institute of Medical Research (WIMR), Herpes Virus Laboratory, Sydney 2145, Australia
| | - Cardoso Thyago H.
- OMICS Centre of Excellence, G42 Healthcare, Mazdar City, Abu Dhabi 3079, United Arab Emirates
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12
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Liang C, Li X, Li Q, Zhang X, Ren W, Yao C, Pang Y, Liu Y, Li C, Tang S. Clinical isolates of Mycobacterium tuberculosis with different genotypes exhibit distinct host macrophage responses in vitro. J Med Microbiol 2022; 71. [PMID: 36748527 DOI: 10.1099/jmm.0.001604] [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] [Indexed: 11/29/2022] Open
Abstract
Introduction. Mycobacterium tuberculosis (M.tb), the causative agent of tuberculosis, can survive as an intracellular parasite after entering macrophages via phagocytosis. M.tb strains are genotypically distinct and engage in diverse pathogen-host interactions, with different host immune responses triggered by different M.tb strains. Importantly, differences in intracellular accumulation and triggering of host macrophage responses during early infection stages are key determinants that shape the final outcomes of host innate immune responses to different M.tb strains.Hypothesis/Gap Statement. Clinical M.tb strains with different genotypes elicit different host innate immune responses in vitro.Aim. This work aimed to compare host innate immune responses elicited by genotypically diverse, clinically derived M.tb strains in vitro.Methodology. RAW264.7 cells were infected with three lineage 2 and lineage 4 clinically derived M.tb strains and strain H37Rv. Strains were evaluated for differences in intracellular growth, induction of macrophage apoptosis, and induction of expression of proinflammatory cytokines and associated pattern recognition receptors.Results. Highly variable cytokine profiles were observed subsequent to RAW264.7 cell infection with the different strains. The Beijing genotype strain, a modern Beijing strain belonging to lineage 2, induced milder host proinflammatory responses and less apoptosis and exhibited greater intracellular growth as compared to the other strains. Moreover, mRNA expression levels of iNOS in Beijing and MANU2 genotype strains exceeded corresponding levels obtained for the T1 genotype strain. Meanwhile, mRNA expression levels of toll-like receptor (TLR)-encoding genes TLR2 and TLR7 in macrophages infected with the Beijing genotype strain were higher than corresponding levels observed in MANU2 genotype strain-infected macrophages.Conclusion. The higher intracellular survival rate and lower level of host cell apoptosis associated with macrophage infection with the Beijing genotype strain indicated greater virulence of this strain relative to that of the other strains. Furthermore, in vitro immune responses induced by the Beijing genotype strain were unique in that this strain induced a weaker inflammatory response than was induced by T1 or MANU2 genotype strains. Nevertheless, additional evidence is needed to confirm that Beijing genotype strains possess greater virulence than strains with other genotypes.
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Affiliation(s)
- Chen Liang
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
| | - Xiaomeng Li
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
| | - Qiao Li
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
| | - Xuxia Zhang
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
| | - Weicong Ren
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
| | - Cong Yao
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
| | - Yu Pang
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
| | - Yi Liu
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
| | - Chuanyou Li
- Department of Bacteriology and Immunology, Beijing Key Laboratory on Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
- Department of Tuberculosis, Beijing Center for Tuberculosis Research and Control, Beijing Center for Disease Prevention and Control, Xicheng District, Beijing 100035, PR China
| | - Shenjie Tang
- Tuberculosis Clinical Medical Center, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou District, Beijing, 101149, PR China
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13
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Arrigoni R, Ballini A, Topi S, Bottalico L, Jirillo E, Santacroce L. Antibiotic Resistance to Mycobacterium tuberculosis and Potential Use of Natural and Biological Products as Alternative Anti-Mycobacterial Agents. Antibiotics (Basel) 2022; 11:antibiotics11101431. [PMID: 36290089 PMCID: PMC9598247 DOI: 10.3390/antibiotics11101431] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Tuberculosis (TB) is an infectious disease caused by the bacillus Mycobacterium tuberculosis (Mtb). TB treatment is based on the administration of three major antibiotics: isoniazid, rifampicin, and pyrazinamide. However, multi-drug resistant (MDR) Mtb strains are increasing around the world, thus, allowing TB to spread around the world. The stringent response is demonstrated by Mtb strains in order to survive under hostile circumstances, even including exposure to antibiotics. The stringent response is mediated by alarmones, which regulate bacterial replication, transcription and translation. Moreover, the Mtb cell wall contributes to the mechanism of antibiotic resistance along with efflux pump activation and biofilm formation. Immunity over the course of TB is managed by M1-macrophages and M2-macrophages, which regulate the immune response against Mtb infection, with the former exerting inflammatory reactions and the latter promoting an anti-inflammatory profile. T helper 1 cells via secretion of interferon (IFN)-gamma, play a protective role in the course of TB, while T regulatory cells secreting interleukin 10, are anti-inflammatory. Alternative therapeutic options against TB require further discussion. In view of the increasing number of MDR Mtb strains, attempts to replace antibiotics with natural and biological products have been object of intensive investigation. Therefore, in this review the anti-Mtb effects exerted by probiotics, polyphenols, antimicrobial peptides and IFN-gamma will be discussed. All the above cited compounds are endowed either with direct antibacterial activity or with anti-inflammatory and immunomodulating characteristics.
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Affiliation(s)
- Roberto Arrigoni
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), 70124 Bari, Italy
- Correspondence:
| | - Andrea Ballini
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Skender Topi
- Department of Clinical Disciplines, School of Technical Medical Sciences, “A. Xhuvani”, 3001 Elbasan, Albania
| | - Lucrezia Bottalico
- Department of Clinical Disciplines, School of Technical Medical Sciences, “A. Xhuvani”, 3001 Elbasan, Albania
| | - Emilio Jirillo
- Interdisciplinary Department of Medicine, Section of Microbiology and Virology, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy
| | - Luigi Santacroce
- Interdisciplinary Department of Medicine, Section of Microbiology and Virology, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy
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14
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NAT10 regulates neutrophil pyroptosis in sepsis via acetylating ULK1 RNA and activating STING pathway. Commun Biol 2022; 5:916. [PMID: 36068299 PMCID: PMC9448771 DOI: 10.1038/s42003-022-03868-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 08/22/2022] [Indexed: 11/28/2022] Open
Abstract
Emerging evidence suggests that pyroptosis is involved in sepsis. However, the role of neutrophil pyroptosis in sepsis and the mechanisms remains elusive. We find that N-acetyltransferase 10 (NAT10), an acetyltransferase responsible for the N4-acetylation of Cytidine (ac4C) in mRNA, is significantly downregulated in neutrophils from septic mice. Neutrophil-specific over-expression of NAT10 improves the survival and ameliorates lung injury in septic mice by inhibiting neutrophil pyroptosis. Notably, UNC-52-like kinase 1 (ULK1) is identified as the target of NAT10 in neutrophils. The decreased expression of NAT10 resultes in the decay of ULK1 transcripts and therefore the reduced expression of ULK1. As a regulator of STING phosphorylation, the loss of ULK1 enhances the activation of STING-IRF3 signaling and subsequently the elevated pyroptosis-inducing NLRP3 inflammasome in neutrophils. While over-expression of NAT10 restrains pyroptosis in neutrophils as well as septic lethality in mice by reversing the ULK1-STING-NLRP3 axis. The decreased expression of NAT10 are also observed in sepsis patients and its correlation with clinical severity is found. Collectively, our findings disclose that NAT10 is a negative regulator of neutrophil pyroptosis and its downregulation contributes to the progress of sepsis by exacerbating pyroptosis via the ULK1-STING-NLRP3 axis, therefore revealing a potential therapeutic target for sepsis. The enzyme N-acetyltransferase NAT10 is a negative regulator of neutrophil pyroptosis and its downregulation contributes to the progress of sepsis by exacerbating pyroptosis via the ULK1-STING-NLRP3 pathway.
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15
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Secretory proteins of
Mycobacterium tuberculosis
and their roles in modulation of host immune responses: focus on therapeutic targets. FEBS J 2022; 289:4146-4171. [DOI: 10.1111/febs.16369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 01/04/2022] [Accepted: 01/21/2022] [Indexed: 12/01/2022]
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16
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A Novel Classification Model for Lower-Grade Glioma Patients Based on Pyroptosis-Related Genes. Brain Sci 2022; 12:brainsci12060700. [PMID: 35741587 PMCID: PMC9221219 DOI: 10.3390/brainsci12060700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/13/2022] [Accepted: 05/23/2022] [Indexed: 02/06/2023] Open
Abstract
Recent studies demonstrated that pyroptosis plays a crucial role in shaping the tumor-immune microenvironment. However, the influence of pyroptosis on lower-grade glioma regarding immunotherapy and targeted therapy is still unknown. This study analyzed the variations of 33 pyroptosis-related genes in lower-grade glioma and normal tissues. Our study found considerable genetic and expression alterations in heterogeneity among lower-grade gliomas and normal brain tissues. There are two pyroptosis phenotypes in lower-grade glioma, and they exhibited differences in cell infiltration characteristics and clinical characters. Then, a PyroScore model using the lasso-cox method was constructed to measure the level of pyroptosis in each patient. PyroScore can refine the lower-grade glioma patients with a stratified prognosis and a distinct tumor immune microenvironment. Pyscore may also be an effective factor in predicting potential therapeutic benefits. In silico analysis showed that patients with a lower PyroScore are expected to be more sensitive to targeted therapy and immunotherapy. These findings may enhance our understanding of pyroptosis in lower-grade glioma and might help optimize risk stratification for the survival and personalized management of lower-grade glioma patients.
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17
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Fu H, Gu YH, Tan J, Yang YN, Wang GH. CircACTR2 in macrophages promotes renal fibrosis by activating macrophage inflammation and epithelial-mesenchymal transition of renal tubular epithelial cells. Cell Mol Life Sci 2022; 79:253. [PMID: 35449370 PMCID: PMC11072867 DOI: 10.1007/s00018-022-04247-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 02/16/2022] [Accepted: 03/16/2022] [Indexed: 02/06/2023]
Abstract
The crosstalk between macrophages and tubular epithelial cells (TECs) actively regulates the progression of renal fibrosis. In the present study, we revealed the significance of circular RNA ACTR2 (circACTR2) in regulating macrophage inflammation, epithelial-mesenchymal transition (EMT) of TECs, and the development of renal fibrosis. Our results showed UUO-induced renal fibrosis was associated with increased inflammation and EMT, hypertrophy of contralateral kidney, up-regulations of circACTR2 and NLRP3, and the down-regulation of miR-561. CircACTR2 sufficiently and essentially promoted the activation of NLRP3 inflammasome, pyroptosis, and inflammation in macrophages, and through paracrine effect, stimulated EMT and fibrosis of TECs. Mechanistically, circACTR2 sponged miR-561 and up-regulated NLRP3 expression level to induce the secretion of IL-1β. In TECs, IL-1β induced renal fibrosis via up-regulating fascin-1. Knocking down circACTR2 or elevating miR-561 potently alleviated renal fibrosis in vivo. In summary, circACTR2, by sponging miR-561, activated NLRP3 inflammasome, promoted macrophage inflammation, and stimulated macrophage-induced EMT and fibrosis of TECs. Knocking down circACTR2 and overexpressing miR-561 may, thus, benefit the treatment of renal fibrosis.
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Affiliation(s)
- Hua Fu
- Department of Pathology, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, People's Republic of China
| | - Yong-Hong Gu
- Department of Pathology, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, People's Republic of China
| | - Juan Tan
- Department of Pathology, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, People's Republic of China
| | - Ye-Ning Yang
- Department of Pathology, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, People's Republic of China
| | - Guo-Hui Wang
- Department of Gastrointestinal Surgery, Third Xiangya Hospital, Central South University, No 138, Tongzipo Road, Yuelu, Changsha, 410013, Hunan, People's Republic of China.
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18
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Anton-Pampols P, Diaz-Requena C, Martinez-Valenzuela L, Gomez-Preciado F, Fulladosa X, Vidal-Alabro A, Torras J, Lloberas N, Draibe J. The Role of Inflammasomes in Glomerulonephritis. Int J Mol Sci 2022; 23:ijms23084208. [PMID: 35457026 PMCID: PMC9029880 DOI: 10.3390/ijms23084208] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 02/07/2023] Open
Abstract
The inflammasome is an immune multiprotein complex that activates pro-caspase 1 in response to inflammation-inducing stimuli and it leads to IL-1β and IL-18 proinflammatory cytokine production. NLRP1 and NLRP3 inflammasomes are the best characterized and they have been related to several autoimmune diseases. It is well known that the kidney expresses inflammasome genes, which can influence the development of some glomerulonephritis, such as lupus nephritis, ANCA glomerulonephritis, IgA nephropathy and anti-GBM nephropathy. Polymorphisms of these genes have also been described to play a role in autoimmune and kidney diseases. In this review, we describe the main characteristics, activation mechanisms, regulation and functions of the different inflammasomes. Moreover, we discuss the latest findings about the role of the inflammasome in several glomerulonephritis from three different points of view: in vitro, animal and human studies.
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Affiliation(s)
- Paula Anton-Pampols
- Nephrology Department, Bellvitge University Hospital, Hospitalet de Llobregat, 08907 Barcelona, Spain; (P.A.-P.); (L.M.-V.); (F.G.-P.); (X.F.); (J.D.)
- IDIBELL Biomedical Research Institute, Hospitalet de Llobregat, 08907 Barcelona, Spain; (C.D.-R.); (A.V.-A.); (N.L.)
| | - Clara Diaz-Requena
- IDIBELL Biomedical Research Institute, Hospitalet de Llobregat, 08907 Barcelona, Spain; (C.D.-R.); (A.V.-A.); (N.L.)
| | - Laura Martinez-Valenzuela
- Nephrology Department, Bellvitge University Hospital, Hospitalet de Llobregat, 08907 Barcelona, Spain; (P.A.-P.); (L.M.-V.); (F.G.-P.); (X.F.); (J.D.)
- IDIBELL Biomedical Research Institute, Hospitalet de Llobregat, 08907 Barcelona, Spain; (C.D.-R.); (A.V.-A.); (N.L.)
| | - Francisco Gomez-Preciado
- Nephrology Department, Bellvitge University Hospital, Hospitalet de Llobregat, 08907 Barcelona, Spain; (P.A.-P.); (L.M.-V.); (F.G.-P.); (X.F.); (J.D.)
| | - Xavier Fulladosa
- Nephrology Department, Bellvitge University Hospital, Hospitalet de Llobregat, 08907 Barcelona, Spain; (P.A.-P.); (L.M.-V.); (F.G.-P.); (X.F.); (J.D.)
- IDIBELL Biomedical Research Institute, Hospitalet de Llobregat, 08907 Barcelona, Spain; (C.D.-R.); (A.V.-A.); (N.L.)
- Clinical Sciences Department, Campus de Bellvitge, Barcelona University, Hospitalet de Llobregat, 08907 Barcelona, Spain
| | - Anna Vidal-Alabro
- IDIBELL Biomedical Research Institute, Hospitalet de Llobregat, 08907 Barcelona, Spain; (C.D.-R.); (A.V.-A.); (N.L.)
| | - Joan Torras
- Nephrology Department, Bellvitge University Hospital, Hospitalet de Llobregat, 08907 Barcelona, Spain; (P.A.-P.); (L.M.-V.); (F.G.-P.); (X.F.); (J.D.)
- IDIBELL Biomedical Research Institute, Hospitalet de Llobregat, 08907 Barcelona, Spain; (C.D.-R.); (A.V.-A.); (N.L.)
- Clinical Sciences Department, Campus de Bellvitge, Barcelona University, Hospitalet de Llobregat, 08907 Barcelona, Spain
- Correspondence:
| | - Núria Lloberas
- IDIBELL Biomedical Research Institute, Hospitalet de Llobregat, 08907 Barcelona, Spain; (C.D.-R.); (A.V.-A.); (N.L.)
- Department of Physiological Sciences, Campus de Bellvitge, Barcelona University, Hospitalet de Llobregat, 08907 Barcelona, Spain
| | - Juliana Draibe
- Nephrology Department, Bellvitge University Hospital, Hospitalet de Llobregat, 08907 Barcelona, Spain; (P.A.-P.); (L.M.-V.); (F.G.-P.); (X.F.); (J.D.)
- IDIBELL Biomedical Research Institute, Hospitalet de Llobregat, 08907 Barcelona, Spain; (C.D.-R.); (A.V.-A.); (N.L.)
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19
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Arish M, Naz F. Macrophage plasticity as a therapeutic target in tuberculosis. Eur J Immunol 2022; 52:696-704. [DOI: 10.1002/eji.202149624] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/31/2021] [Accepted: 03/01/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Mohd Arish
- JH‐Institute of Molecular Medicine Jamia Hamdard New Delhi India
- Carter Immunology Center University of Virginia United States
| | - Farha Naz
- Centre for Interdisciplinary Research in Basic Sciences (CIRBSc) Jamia Millia Islamia New Delhi India
- Division of Infectious Disease and International Health School of Medicine University of Virginia Health System United States
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20
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Ibeagha-Awemu EM, Bissonnette N, Bhattarai S, Wang M, Dudemaine PL, McKay S, Zhao X. Whole Genome Methylation Analysis Reveals Role of DNA Methylation in Cow's Ileal and Ileal Lymph Node Responses to Mycobacterium avium subsp. paratuberculosis Infection. Front Genet 2021; 12:797490. [PMID: 34992636 PMCID: PMC8724574 DOI: 10.3389/fgene.2021.797490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/22/2021] [Indexed: 12/27/2022] Open
Abstract
Johne's Disease (JD), caused by Mycobacterium avium subsp paratuberculosis (MAP), is an incurable disease of ruminants and other animal species and is characterized by an imbalance of gut immunity. The role of MAP infection on the epigenetic modeling of gut immunity during the progression of JD is still unknown. This study investigated the DNA methylation patterns in ileal (IL) and ileal lymph node (ILLN) tissues from cows diagnosed with persistent subclinical MAP infection over a one to 4 years period. DNA samples from IL and ILLN tissues from cows negative (MAPneg) (n = 3) or positive for MAP infection (MAPinf) (n = 4) were subjected to whole genome bisulfite sequencing. A total of 11,263 and 62,459 differentially methylated cytosines (DMCs), and 1259 and 8086 differentially methylated regions (DMRs) (FDR<0.1) were found between MAPinf and MAPneg IL and ILLN tissues, respectively. The DMRs were found on 394 genes (denoted DMR genes) in the IL and on 1305 genes in the ILLN. DMR genes with hypermethylated promoters/5'UTR [3 (IL) and 88 (ILLN)] or hypomethylated promoters/5'UTR [10 (IL) and 25 (ILLN)] and having multiple functions including response to stimulus/immune response (BLK, BTC, CCL21, AVPR1A, CHRNG, GABRA4, TDGF1), cellular processes (H2AC20, TEX101, GLA, NCKAP5L, RBM27, SLC18A1, H2AC20BARHL2, NLGN3, SUV39H1, GABRA4, PPA1, UBE2D2) and metabolic processes (GSTO2, H2AC20, SUV39H1, PPA1, UBE2D2) are potential DNA methylation candidate genes of MAP infection. The ILLN DMR genes were enriched for more biological process (BP) gene ontology (GO) terms (n = 374), most of which were related to cellular processes (27.6%), biological regulation (16.6%), metabolic processes (15.4%) and response to stimulus/immune response (8.2%) compared to 75 BP GO terms (related to cellular processes, metabolic processes and transport, and system development) enriched for IL DMR genes. ILLN DMR genes were enriched for more pathways (n = 47) including 13 disease pathways compared with 36 enriched pathways, including 7 disease/immune pathways for IL DMR genes. In conclusion, the results show tissue specific responses to MAP infection with more epigenetic changes (DMCs and DMRs) in the ILLN than in the IL tissue, suggesting that the ILLN and immune processes were more responsive to regulation by methylation of DNA relative to IL tissue. Our data is the first to demonstrate a potential role for DNA methylation in the pathogenesis of MAP infection in dairy cattle.
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Affiliation(s)
- Eveline M. Ibeagha-Awemu
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada
| | - Nathalie Bissonnette
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada
| | - Suraj Bhattarai
- Department of Animal and Veterinary Sciences, University of Vermont, Burlington, VT, United States
| | - Mengqi Wang
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada
| | - Pier-Luc Dudemaine
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada
| | - Stephanie McKay
- Department of Animal and Veterinary Sciences, University of Vermont, Burlington, VT, United States
| | - Xin Zhao
- Department of Animal Science, McGill University, Ste-Anne-Be-Bellevue, QC, Canada
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21
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Zheng Z, Tang D, Zhao W, Wan Z, Yu M, Huang Z, Li L, Aweya JJ, Zhang Y. NLRP3-like protein negatively regulates the expression of antimicrobial peptides in Penaeus vannamei hemocyates. FISH AND SHELLFISH IMMUNOLOGY REPORTS 2021; 2:100039. [DOI: 10.1016/j.fsirep.2021.100039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/04/2021] [Accepted: 11/14/2021] [Indexed: 10/19/2022] Open
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22
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An Epigenetic Insight into NLRP3 Inflammasome Activation in Inflammation-Related Processes. Biomedicines 2021; 9:biomedicines9111614. [PMID: 34829842 PMCID: PMC8615487 DOI: 10.3390/biomedicines9111614] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/25/2021] [Accepted: 10/29/2021] [Indexed: 12/13/2022] Open
Abstract
Aberrant NLRP3 (NOD-, LRR-, and pyrin domain-containing protein 3) inflammasome activation in innate immune cells, triggered by diverse cellular danger signals, leads to the production of inflammatory cytokines (IL-1β and IL-18) and cell death by pyroptosis. These processes are involved in the pathogenesis of a wide range of diseases such as autoimmune, neurodegenerative, renal, metabolic, vascular diseases and cancer, and during physiological processes such as aging. Epigenetic dynamics mediated by changes in DNA methylation patterns, chromatin assembly and non-coding RNA expression are key regulators of the expression of inflammasome components and its further activation. Here, we review the role of the epigenome in the expression, assembly, and activation of the NLRP3 inflammasome, providing a critical overview of its involvement in the disease and discussing how targeting these mechanisms by epigenetic treatments could be a useful strategy for controlling NLRP3-related inflammatory diseases.
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23
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Noonepalle SKR, Karabon L, Chiappinelli KB, Villagra A. Editorial: Genetic and Epigenetic Control of Immune Responses. Front Immunol 2021; 12:775101. [PMID: 34675944 PMCID: PMC8523980 DOI: 10.3389/fimmu.2021.775101] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 12/15/2022] Open
Affiliation(s)
- Satish kumar R. Noonepalle
- Department of Biochemistry and Molecular Medicine, GW Cancer Center, School of Medicine and Health Sciences, George Washington University, Washington DC, United States
| | - Lidia Karabon
- Department of Experimental Therapy, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Katherine B. Chiappinelli
- Department of Microbiology, Immunology, and Tropical Medicine, GW Cancer Center, School of Medicine and Health Sciences, George Washington University, Washington DC, United States
| | - Alejandro Villagra
- Department of Biochemistry and Molecular Medicine, GW Cancer Center, School of Medicine and Health Sciences, George Washington University, Washington DC, United States
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A differential DNA methylome signature of pulmonary immune cells from individuals converting to latent tuberculosis infection. Sci Rep 2021; 11:19418. [PMID: 34593857 PMCID: PMC8484443 DOI: 10.1038/s41598-021-98542-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 09/02/2021] [Indexed: 12/13/2022] Open
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis, spreads via aerosols and the first encounter with the immune system is with the pulmonary-resident immune cells. The role of epigenetic regulations in the immune cells is emerging and we have previously shown that macrophages capacity to kill M. tuberculosis is reflected in the DNA methylome. The aim of this study was to investigate epigenetic modifications in alveolar macrophages and T cells in a cohort of medical students with an increased risk of TB exposure, longitudinally. DNA methylome analysis revealed that a unique DNA methylation profile was present in healthy subjects who later developed latent TB during the study. The profile was reflected in a different overall DNA methylation distribution as well as a distinct set of differentially methylated genes (DMGs). The DMGs were over-represented in pathways related to metabolic reprogramming of macrophages and T cell migration and IFN-γ production, pathways previously reported important in TB control. In conclusion, we identified a unique DNA methylation signature in individuals, with no peripheral immune response to M. tuberculosis antigen who later developed latent TB. Together the study suggests that the DNA methylation status of pulmonary immune cells can reveal who will develop latent TB infection.
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25
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Qin W, Scicluna BP, van der Poll T. The Role of Host Cell DNA Methylation in the Immune Response to Bacterial Infection. Front Immunol 2021; 12:696280. [PMID: 34394088 PMCID: PMC8358789 DOI: 10.3389/fimmu.2021.696280] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/15/2021] [Indexed: 12/12/2022] Open
Abstract
Host cells undergo complex transcriptional reprogramming upon infection. Epigenetic changes play a key role in the immune response to bacteria, among which DNA modifications that include methylation have received much attention in recent years. The extent of DNA methylation is well known to regulate gene expression. Whilst historically DNA methylation was considered to be a stable epigenetic modification, accumulating evidence indicates that DNA methylation patterns can be altered rapidly upon exposure of cells to changing environments and pathogens. Furthermore, the action of proteins regulating DNA methylation, particularly DNA methyltransferases and ten-eleven translocation methylcytosine dioxygenases, may be modulated, at least in part, by bacteria. This review discusses the principles of DNA methylation, and recent insights about the regulation of host DNA methylation during bacterial infection.
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Affiliation(s)
- Wanhai Qin
- Center of Experimental & Molecular Medicine, Amsterdam University Medical Centers, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Brendon P Scicluna
- Center of Experimental & Molecular Medicine, Amsterdam University Medical Centers, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam University Medical Centers, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Tom van der Poll
- Center of Experimental & Molecular Medicine, Amsterdam University Medical Centers, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Division of Infectious Diseases, Amsterdam University Medical Centers, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
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26
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Functional Interplay between Methyltransferases and Inflammasomes in Inflammatory Responses and Diseases. Int J Mol Sci 2021; 22:ijms22147580. [PMID: 34299198 PMCID: PMC8306412 DOI: 10.3390/ijms22147580] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/07/2021] [Accepted: 07/13/2021] [Indexed: 02/08/2023] Open
Abstract
An inflammasome is an intracellular protein complex that is activated in response to a pathogenic infection and cellular damage. It triggers inflammatory responses by promoting inflammatory cell death (called pyroptosis) and the secretion of pro-inflammatory cytokines, interleukin (IL)-1β and IL-18. Many types of inflammasomes have been identified and demonstrated to play a central role in inducing inflammatory responses, leading to the onset and progression of numerous inflammatory diseases. Methylation is a biological process by which methyl groups are transferred from methyl donors to proteins, nucleic acids, and other cellular molecules. Methylation plays critical roles in various biological functions by modulating gene expression, protein activity, protein localization, and molecular stability, and aberrant regulation of methylation causes deleterious outcomes in various human diseases. Methylation is a key determinant of inflammatory responses and diseases. This review highlights the current understanding of the functional relationship between inflammasome regulation and methylation of cellular molecules in inflammatory responses and diseases.
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27
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DNA Methylation Profiling for the Diagnosis and Prognosis of Patients with Nontuberculous Mycobacterium Lung Disease. Curr Issues Mol Biol 2021; 43:501-512. [PMID: 34203447 PMCID: PMC8929150 DOI: 10.3390/cimb43020038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 12/13/2022] Open
Abstract
The incidence of nontuberculous Mycobacterium (NTM) lung disease is rapidly increasing; however, its diagnosis and prognosis remain unclear while selecting patients who will respond to appropriate treatment. Differences in DNA methylation patterns between NTM patients with good or poor prognosis could provide important therapeutic targets. We used the Illumina MethylationEPIC (850k) DNA methylation microarray to determine the pattern between differentially methylated regions (DMRs) in NTM patients with good or poor prognosis (n = 4/group). Moreover, we merged and compared 20 healthy controls from previous Illumina Methylation450k DNA methylation microarray data. We selected and visualized the DMRs in the form of heatmaps, and enriched terms associated with these DMRs were identified by functional annotation with the “pathfinder” package. In total, 461 and 293 DMRs (|Log2 fold change| > 0.1 and P < 0.03) were more methylated in patients with four poor and four good prognoses, respectively. Furthermore, 337 and 771 DMRs (|Log2 fold change| > 0.08 and P < 0.001) were more methylated in eight NTM patients and 20 healthy controls, respectively. TGFBr1 was significantly less methylated, whereas HLA-DR1 and HLA-DR5 were more methylated in patients with poor prognosis (compared to those with good prognosis). LRP5, E2F1, and ADCY3 were the top three less-methylated genes in NTM patients (compared with the controls). The mTOR and Wnt signaling pathway-related genes were less methylated in patients with NTM. Collectively, genes related to Th1- cell differentiation, such as TGFBr1 and HLA-DR, may be used as biomarkers for predicting the treatment response in patients with NTM lung disease.
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28
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Saksena N, Bonam SR, Miranda-Saksena M. Epigenetic Lens to Visualize the Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) Infection in COVID-19 Pandemic. Front Genet 2021; 12:581726. [PMID: 33828579 PMCID: PMC8019793 DOI: 10.3389/fgene.2021.581726] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 02/15/2021] [Indexed: 12/14/2022] Open
Abstract
In <20 years, we have witnessed three different epidemics with coronaviruses, SARS-CoV, MERS-CoV, and SARS-CoV-2 in human populations, causing widespread mortality. SARS-CoV-2, through its rapid global spread, has led to the pandemic that we call COVID-19. As of February 1, 2021, the global infections linked to SARS-CoV-2 stand at 103,503,340, with 2,236,960 deaths, and 75,108,099 recoveries. This review attempts to highlight host-pathogen interaction with particular emphasis on the role of epigenetic machinery in regulating the disease. Although researchers, since the start of the pandemic, have been intensely engaged in diverse areas to understand the mechanisms involved in SARS-CoV-2 infection to find answers that can bring about innovative ways to swiftly treat and prevent disease progression, this review provides an overview on how the host epigenetics is modulated and subverted by SARS-CoV-2 to enter the host cells and drive immunopathogenesis. Epigenetics is the study that combines genetic and non-genetic factors controlling phenotypic variation, which are primarily a consequence of external and environmental stimuli. These stimuli alter the activity of a gene without impinging on the DNA code. In viral-host interactions, DNA/RNA methylation, non-coding RNAs, chromatin remodeling, and histone modifications are known to regulate and modulate host gene expression patterns. Viruses such as Coronaviruses (an RNA virus) show intrinsic association with these processes. They have evolved the ability to tamper with host epigenetic machinery to interfere with immune sensing pathways to evade host immune response, thereby enhancing its replication and pathogenesis post-entry. These epigenetic alterations allow the virus to weaken the host's immune response to successfully spread infection. How this occurs, and what epigenetic mechanisms are altered is poorly understood both for coronaviruses and other respiratory RNA viruses. The review highlights several cutting-edge aspects of epigenetic work primarily pertinent to SARS-CoV-2, which has been published between 2019 and 2020 to showcase the current knowledge both in terms of success and failures and take lessons that will assist us in understanding the disease to develop better treatments suited to kill SARS-CoV-2.
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Affiliation(s)
- Nitin Saksena
- EPIGENES Australia Pty Ltd, Melbourne, VIC, Australia
- Institute of Health and Sport, Victoria University, Footscray, VIC, Australia
| | - Srinivasa Reddy Bonam
- Institut National de la Santé et de la Recherche Médicale, Centre de Recherche des Cordeliers, Equipe- Immuno-pathologie et Immuno-intervention Thérapeutique, Sorbonne Université, Université de Paris, Paris, France
| | - Monica Miranda-Saksena
- Herpes Neuropathogenesis Research Group, The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, Australia
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29
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Sar P, Dalai S. CRISPR/Cas9 in epigenetics studies of health and disease. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2021; 181:309-343. [PMID: 34127198 DOI: 10.1016/bs.pmbts.2021.01.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Epigenetics is the heritable phenotypic changes without altering the genotype. Epigenetic processes are such as histone methylation, acetylation, ubiquitination, sumoylation, phosphorylation, ADP ribosylation, DNA methylation and non-coding RNAs interactions associated with structural changes in chromatin. The change of structure is either open chromatin for "active" state or closed chromatin for "inactive" state, that regulates important biological phenomenon like chromatin condensation, gene expression, DNA repair, cellular development, differentiation and homeostasis, etc. However, dysregulation of epigenetic patterns causes diseases like cancer, diabetes, neurological disorder, infectious diseases, autoimmunity etc. Besides, the most important clinical uses of Epigenetics studies are i. identification of disease biomarkers and ii. development of their therapeutics. Epigenetic therapies include epi-drugs, combinatorial therapy, nanocarriers, plant-derived products that are being used for changing the epigenetic pattern to reverse gene expression. However, the developed epi- drugs cause off-target gene and transposable elements activation; promote mutagenesis and carcinogenesis in normal cells, are the major hurdles regarding their clinical use. Therefore, advanced epigenetic therapeutics are required to develop target-specific epigenetic modifications to reverse gene expression pattern. CRISPR-Cas9 (Clustered Regularly Interspaced Palindrome Repeats-associated protein 9) system-mediated gene activation mechanism paves new methods of target-specific epigenetic therapeutics to cure diseases. In this chapter, we discuss how CRISPR/Cas9 and dCas9 have recently been engineered for epigenome editing. Different strategies have been discussed used for epigenome editing based on their efficacy and complexity. Last but not least we have discussed the limitations, different uses of CRISPR/Cas9 and dCas9 in the area of genetic engineering.
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Affiliation(s)
- Pranati Sar
- Institute of Science, NIRMA University, Ahmedabad, India.
| | - Sarat Dalai
- Institute of Science, NIRMA University, Ahmedabad, India.
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30
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Chandra S, Ehrlich KC, Lacey M, Baribault C, Ehrlich M. Epigenetics and expression of key genes associated with cardiac fibrosis: NLRP3, MMP2, MMP9, CCN2/CTGF and AGT. Epigenomics 2021; 13:219-234. [PMID: 33538177 PMCID: PMC7907962 DOI: 10.2217/epi-2020-0446] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Aims: Excessive inflammatory signaling and pathological remodeling of the extracellular matrix drive cardiac fibrosis and require changes in gene expression. Materials and methods: Using bioinformatics, both tissue-specific expression profiles and epigenomic profiles of some genes critical for cardiac fibrosis were examined, namely, NLRP3, MMP2, MMP9, CCN2/CTGF, AGT (encodes angiotensin II precursors) and hsa-mir-223 (post-transcriptionally regulates NLRP3). Results: In monocytes, neutrophils, fibroblasts, venous cells, liver and brain, enhancers or super-enhancers were found that correlate with high expression of these genes. One enhancer extended into a silent gene neighbor. These enhancers harbored tissue-specific foci of DNA hypomethylation, open chromatin and transcription factor binding. Conclusions: This study identified previously undescribed enhancers containing hypomethylated transcription factor binding subregions that are predicted to regulate expression of these cardiac fibrosis-inducing genes.
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Affiliation(s)
- Sruti Chandra
- Tulane Research Innovation for Arrhythmia Discoveries, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Kenneth C Ehrlich
- Tulane Center for Biomedical Informatics & Genomics, Tulane University Health Sciences Center, New Orleans, LA, 70112, USA
| | - Michelle Lacey
- Department of Mathematics, Tulane University, New Orleans, LA, 70112, USA.,Tulane Cancer Center, Tulane University Health Sciences Center, New Orleans, LA, 70112, USA
| | - Carl Baribault
- Center for Research & Scientific Computing, Tulane University Information Technology, New Orleans, LA, 70112, USA
| | - Melanie Ehrlich
- Tulane Center for Biomedical Informatics & Genomics, Tulane University Health Sciences Center, New Orleans, LA, 70112, USA.,Tulane Cancer Center, Tulane University Health Sciences Center, New Orleans, LA, 70112, USA.,Hayward Genetics Center, Tulane University Health Sciences Center, New Orleans, LA, 70112, USA
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31
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Lucafò M, Granata S, Bonten EJ, McCorkle R, Stocco G, Caletti C, Selvestrel D, Cozzarolo A, Zou C, Cuzzoni E, Pasini A, Montini G, Gambaro G, Decorti G, Evans W, Zaza G. Hypomethylation of NLRP3 gene promoter discriminates glucocorticoid-resistant from glucocorticoid-sensitive idiopathic nephrotic syndrome patients. Clin Transl Sci 2021; 14:964-975. [PMID: 33382913 PMCID: PMC8212736 DOI: 10.1111/cts.12961] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/05/2020] [Accepted: 11/15/2020] [Indexed: 02/06/2023] Open
Abstract
Abstract To assess whether NLRP3 gene promoter methylation was able to discriminate glucocorticoid (GC)‐resistant from GC‐sensitive idiopathic nephrotic syndrome (INS), patients with minimal change disease (MCD) or focal segmental glomerulosclerosis (FSGS), we measured the methylation level of NLRP3 promoter in DNA from peripheral blood cells of 10 adult patients with GC‐resistant FSGS already in hemodialysis and 18 patients with GC‐sensitive INS (13 MCD/5 FSGS) and in 21 pediatric patients with INS with MCD/FSGS before starting any treatment. Association of NLRP3 inflammasome with GC resistance was recapitulated in vitro in monocytic cell lines (THP‐1 and U937). In both adults and pediatric patients, NLRP3 promoter methylation was significantly reduced in GC‐resistant compared with GC‐sensitive patients. Indeed, NLRP3 methylation distinguished GC‐resistant and GC‐sensitive patients (area under the receiver operating characteristic curve [AUROC] 86.7% in adults, p = 0.00019, and 73.5% in children, p = 0.00097). NLRP3 knock‐down augmented sensitivity to GCs in THP‐1 cells, whereas NLRP3 inflammasome activation lowered GC receptor concentration, increasing GC resistance in U937 cells. Our results uncovered a new biological mechanism by which patients with INS may acquire GC resistance, that could be used in future as a novel noninvasive diagnostic tool. Study Highlights WHAT IS THE CURRENT KNOWLEDGE ON THE TOPIC?
☑ Approximately 80% of patients with idiopathic nephrotic syndrome (INS) respond to glucocorticoids, with the remaining 20% being steroid‐resistant.
WHAT QUESTION DID THIS STUDY ADDRESS?
☑ Whether NLRP3 gene promoter methylation was able to discriminate glucocorticoid‐resistant from glucocorticoid (GC)‐sensitive INS.
WHAT DOES THIS STUDY ADD TO OUR KNOWLEDGE?
☑ In both adults and children, NLRP3 promoter methylation was significantly reduced in leukocytes of patients with GC‐resistant compared with GC‐sensitive INS. NLRP3 inflammasome activation lowered GC receptor concentration and augmented GC resistance, whereas NLRP3 knockdown increased sensitivity to GCs in cell lines representative of monocytes (U937 and THP1).
HOW MIGHT THIS CHANGE CLINICAL PHARMACOLOGY OR TRANSLATIONAL SCIENCE?
☑ Our findings uncovered a new biological mechanism whereby patients with INS may develop resistance to GCs that could be used in the future as a novel noninvasive diagnostic tool.
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Affiliation(s)
- Marianna Lucafò
- Institute for Maternal and Child Health I.R.C.C.S. Burlo Garofolo, Trieste, Italy
| | - Simona Granata
- Renal Unit, Department of Medicine, University Hospital of Verona, Verona, Italy
| | - Erik J Bonten
- Hematological Malignancies Program, Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Robert McCorkle
- Hematological Malignancies Program, Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Gabriele Stocco
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Chiara Caletti
- Renal Unit, Department of Medicine, University Hospital of Verona, Verona, Italy
| | | | | | - Chan Zou
- Hematological Malignancies Program, Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Eva Cuzzoni
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Andrea Pasini
- Nephrology and Dialysis Unit, Department of Pediatrics, Azienda Ospedaliero Universitaria, Policlinico Sant'Orsola-Malpighi, Bologna, Italy
| | - Giovanni Montini
- Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione Ca' Granda IRCCS, Policlinico di Milano, Milano, Italy.,Giuliana and Bernardo Caprotti Chair of Pediatrics, Department of Clinical Sciences and Community Health, University of Milano, Milano, Italy
| | - Giovanni Gambaro
- Renal Unit, Department of Medicine, University Hospital of Verona, Verona, Italy
| | - Giuliana Decorti
- Institute for Maternal and Child Health I.R.C.C.S. Burlo Garofolo, Trieste, Italy.,Giuliana and Bernardo Caprotti Chair of Pediatrics, Department of Clinical Sciences and Community Health, University of Milano, Milano, Italy.,Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - William Evans
- Hematological Malignancies Program, Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Gianluigi Zaza
- Renal Unit, Department of Medicine, University Hospital of Verona, Verona, Italy
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32
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Liang C, Liu Y, Xu H, Huang J, Shen Y, Chen F, Luo M. Exosomes of Human Umbilical Cord MSCs Protect Against Hypoxia/Reoxygenation-Induced Pyroptosis of Cardiomyocytes via the miRNA-100-5p/FOXO3/NLRP3 Pathway. Front Bioeng Biotechnol 2021; 8:615850. [PMID: 33520966 PMCID: PMC7844314 DOI: 10.3389/fbioe.2020.615850] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 12/02/2020] [Indexed: 12/13/2022] Open
Abstract
Background Acute myocardial infarction (AMI) is one of the leading causes of morbidity and death worldwide. Studies have indicated that microRNAs in mesenchymal stem cell (MSC)-derived exosomes are crucial for treating various diseases. Methods Human umbilical cord MSC (hucMSC)-derived exosomes (hucMSC-exo) were isolated and used to treat cardiomyocytes that underwent hypoxia/reoxygenation (H/R) injury. Bioluminescence assessment was used to study binding of miRNA to its targeting gene. Results We found that H/R decreased the viability of AC16 cells, increased the expression of NLRP3, and activated caspase-1(p20) and GSDMD-N as well as release of IL-1β and IL-18, and such effects were abolished by administration of hucMSC-exo. Administration of exosomes from negative scramble miRNA (NC)-transfected hucMSCs blocked H/R-caused lactate dehydrogenase release, pyroptosis, and over-regulation of NLRP3 and activated caspase-1(p20) and GSDMD-N as well as release of IL-1β and IL-18. More importantly, in comparison to exsomes from NC-transfected hucMSCs, exsomes from miR-100-5p-overexpressing hucMSCs had more obvious effects, and those from miR-100-5p-inhibitor-transfected hucMSCs showed fewer effects. Functional study showed that miR-100-5p bound to the 3’-untranslated region (3’-UTR) of FOXO3 to suppress its transcription. Moreover, overexpression of FOXO3 abolished the protective effects of miR-100-5p. Conclusion Enriched miR-100-5p in hucMSC-exo suppressed FOXO3 expression to inhibit NLRP3 inflammasome activation and suppress cytokine release and, therefore, protected cardiomyocytes from H/R-induced pyroptosis and injury.
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Affiliation(s)
- Chenyu Liang
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yang Liu
- Department of Geriatrics, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Huifeng Xu
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Junling Huang
- Department of Geriatrics, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Shen
- Department of Geriatrics, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Faxiu Chen
- Department of Geriatrics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Ming Luo
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
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33
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Dymkowska D. The involvement of autophagy in the maintenance of endothelial homeostasis: The role of mitochondria. Mitochondrion 2021; 57:131-147. [PMID: 33412335 DOI: 10.1016/j.mito.2020.12.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/22/2020] [Accepted: 12/30/2020] [Indexed: 02/06/2023]
Abstract
Endothelial mitochondria play important signaling roles critical for the regulation of various cellular processes, including calcium signaling, ROS generation, NO synthesis or inflammatory response. Mitochondrial stress or disturbances in mitochondrial function may participate in the development and/or progression of endothelial dysfunction and could precede vascular diseases. Vascular functions are also strictly regulated by properly functioning degradation machinery, including autophagy and mitophagy, and tightly coordinated by mitochondrial and endoplasmic reticulum responses to stress. Within this review, current knowledge related to the development of cardiovascular disorders and the importance of mitochondria, endoplasmic reticulum and degradation mechanisms in vascular endothelial functions are summarized.
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Affiliation(s)
- Dorota Dymkowska
- The Laboratory of Cellular Metabolism, Nencki Institute of Experimental Biology PAS, 3 Pasteur str. 02-093 Warsaw, Poland.
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34
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Ge Q, Chen X, Zhao Y, Mu H, Zhang J. Modulatory mechanisms of NLRP3: Potential roles in inflammasome activation. Life Sci 2020; 267:118918. [PMID: 33352170 DOI: 10.1016/j.lfs.2020.118918] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 12/07/2020] [Accepted: 12/15/2020] [Indexed: 12/11/2022]
Abstract
The NLRP3 inflammasome regulates innate immune and inflammatory responses by promoting pro-inflammatory cytokines such as IL-18 and IL-1β. NLRP3 is one of the main factors restricting the activation of the inflammasome, which is closely related to the abundance and localization of NLRP3. A substantial number of studies have focused on specifically targeting NLRP3 to develop inhibitors against NLRP3 inflammasome. Here, we succinctly review the regulation of NLRP3 expression at DNA/chromosome, transcriptional, post-transcriptional, and translation levels. These are critical for the fine regulation of the NLRP3 inflammasome.
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Affiliation(s)
- Qihui Ge
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Xinnong Chen
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Yixuan Zhao
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Huaiyu Mu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Junping Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China.
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35
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Weber ANR, Bittner ZA, Shankar S, Liu X, Chang TH, Jin T, Tapia-Abellán A. Recent insights into the regulatory networks of NLRP3 inflammasome activation. J Cell Sci 2020; 133:133/23/jcs248344. [PMID: 33273068 DOI: 10.1242/jcs.248344] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The NACHT, LRR and PYD domains-containing protein 3 (NLRP3) inflammasome is a fascinating cellular machinery endowed with the capacity for rapid proteolytic processing of the pro-inflammatory cytokine IL-1β and the cell death effector gasdermin D (GSDMD). Although its activity is essential to fight infection and support tissue homeostasis, the inflammasome complex, which consists of the danger sensor NLRP3, the adaptor apoptosis-associated speck-like protein containing a CARD (ASC; also known as PYCARD), caspase-1 and probably other regulatory proteins, also bears considerable potential for detrimental inflammation, as observed in human conditions such as gout, heart attack, stroke and Alzheimer's disease. Thus, multi-layered regulatory networks are required to ensure the fine balance between rapid responsiveness versus erroneous activation (sufficient and temporally restricted versus excessive and chronic activity) of the inflammasome. These involve multiple activation, secretion and cell death pathways, as well as modulation of the subcellular localization of NLRP3, and its structure and activity, owing to post-translational modification by other cellular proteins. Here, we discuss the exciting progress that has recently been made in deciphering the regulation of the NLRP3 inflammasome. Additionally, we highlight open questions and describe areas of research that warrant further exploration to obtain a more comprehensive molecular and cellular understanding of the NLRP3 inflammasome.
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Affiliation(s)
- Alexander N R Weber
- Interfaculty Institute for Cell Biology, Department of Immunology, University of Tübingen, Auf der Morgenstelle 15, 72076 Tübingen, Germany .,iFIT - Cluster of Excellence (EXC 2180) 'Image-Guided and Functionally Instructed Tumor Therapies', University Hospital Tübingen - Internal Medicine VIII, Otfried-Müller-Str. 14, 72076 Tübingen, Germany
| | - Zsófia A Bittner
- Interfaculty Institute for Cell Biology, Department of Immunology, University of Tübingen, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Sangeetha Shankar
- Interfaculty Institute for Cell Biology, Department of Immunology, University of Tübingen, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Xiao Liu
- Interfaculty Institute for Cell Biology, Department of Immunology, University of Tübingen, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Tzu-Hsuan Chang
- Interfaculty Institute for Cell Biology, Department of Immunology, University of Tübingen, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Tengchuan Jin
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026 China
| | - Ana Tapia-Abellán
- Interfaculty Institute for Cell Biology, Department of Immunology, University of Tübingen, Auf der Morgenstelle 15, 72076 Tübingen, Germany
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36
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Marimani M, Ahmad A, Stacey S, Duse A. Examining the levels of acetylation, DNA methylation and phosphorylation in HIV-1 positive and multidrug-resistant TB-HIV patients. J Glob Antimicrob Resist 2020; 23:232-242. [PMID: 33045438 DOI: 10.1016/j.jgar.2020.09.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 08/30/2020] [Accepted: 09/27/2020] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVES In this study, we examined the impact of epigenetic modifications on host gene functioning by assessing the expression of seven candidate genes in three separate groups including healthy, multidrug-resistant (MDR) TB-HIV co-infected and HIV-1 positive individuals. METHODS Ten patients with MDR TB and HIV-1 co-infection on TB and HIV therapy and a cohort comprised of 10 newly diagnosed individuals with HIV-1 infection were recruited from the TB and HIV clinics at the Charlotte Maxeke Johannesburg Academic Hospital. Notably, the HIV-1 positive individuals were not placed on antiretroviral therapy (ART) at the time of recruitment and blood collection. A third group consisting of 10 healthy participants without MDR TB or HIV infection was recruited from the University of the Witwatersrand. Blood samples collected from all three cohorts were employed for extraction of plasma, total RNA and genomic DNA. RESULTS Our data indicated that the expression of DNA methyltransferase 1 (DNMT1) and Ten-eleven translocation methylcytosine dioxygenase 1 (TET1) genes was significantly increased in HIV-1 positive patients and was lowest in MDR TB-HIV co-infected patients. By contrast, histone acetyltransferase (HAT), histone deacetylase (HDAC), protein tyrosine kinase (PtkA) and protein tyrosine phosphatase (PtpA) mRNA expression levels were substantially enhanced in HIV-1 infected and were lowest in healthy individuals. Conversely, Dicer expression levels were comparable among all three study groups. CONCLUSION Promising preliminary data emanating from this investigation may potentially be used for generation of novel vaccines and therapeutic compounds capable of neutralising MDR TB-HIV and HIV-1 infection.
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Affiliation(s)
- Musa Marimani
- Clinical Microbiology and Infectious Diseases, School of Pathology, Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Aijaz Ahmad
- Clinical Microbiology and Infectious Diseases, School of Pathology, Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Infection Control, Charlotte Maxeke Johannesburg Academic Hospital, National Health Laboratory Service, Johannesburg, South Africa.
| | - Sarah Stacey
- Division of Pulmonology, Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 2193, South Africa
| | - Adriano Duse
- Clinical Microbiology and Infectious Diseases, School of Pathology, Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Infection Control, Charlotte Maxeke Johannesburg Academic Hospital, National Health Laboratory Service, Johannesburg, South Africa
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Gritsenko A, Green JP, Brough D, Lopez-Castejon G. Mechanisms of NLRP3 priming in inflammaging and age related diseases. Cytokine Growth Factor Rev 2020; 55:15-25. [PMID: 32883606 PMCID: PMC7571497 DOI: 10.1016/j.cytogfr.2020.08.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 08/20/2020] [Indexed: 02/06/2023]
Abstract
The NLRP3 inflammasome is a vital part of the innate immune response, whilst its aberrant activation drives the progression of a number of non-communicable diseases. Thus, NLRP3 inflammasome assembly must be tightly controlled at several checkpoints. The priming step of NLRP3 inflammasome activation is associated with increased NLRP3 gene expression, as well as post-translational modifications that control NLRP3 levels and licence the NLRP3 protein for inflammasome assembly. Increasing life expectancy in modern society is accompanied by a growing percentage of elderly individuals. The process of aging is associated with chronic inflammation that drives and/or worsens a range of age related non-communicable conditions. The NLRP3 inflammasome is known to contribute to pathological inflammation in many settings, but the mechanisms that prime NLRP3 for activation throughout aging and related co-morbidities have not been extensively reviewed. Here we dissect the biochemical changes that occur during aging and the pathogenesis of age related diseases and analyse the mechanisms by which they prime the NLRP3 inflammasome, thus exacerbating inflammation.
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Affiliation(s)
- Anna Gritsenko
- Lydia Becker Institute of Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Jack P Green
- Lydia Becker Institute of Immunology and Inflammation, Division of Neuroscience and Experimental Psychology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - David Brough
- Lydia Becker Institute of Immunology and Inflammation, Division of Neuroscience and Experimental Psychology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Gloria Lopez-Castejon
- Lydia Becker Institute of Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
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Interplays between inflammasomes and viruses, bacteria (pathogenic and probiotic), yeasts and parasites. Immunol Lett 2020; 228:1-14. [PMID: 32971149 PMCID: PMC7505743 DOI: 10.1016/j.imlet.2020.09.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/30/2020] [Accepted: 09/14/2020] [Indexed: 02/06/2023]
Abstract
In recent years, scientists studying the molecular mechanisms of inflammation have discovered an amazing phenomenon - the inflammasome - a component of the innate immune system that can regulate the functional activity of effector cells during inflammation. At present, it is known that inflammasomes are multimolecular complexes (cytosolic multiprotein oligomers of the innate immune system) that contain many copies of receptors recognizing the molecular structures of cell-damaging factors and pathogenic agents. Inflammasomes are mainly formed in myeloid cells, and their main function is participation in the cleavage of the pro-IL-1β and pro-IL-18 cytokines into their biologically active forms (IL-1β, IL-18). Each type of microorganism influences particular inflammasome activation, and long-term exposure of the organism to viruses, bacteria, yeasts or parasites, among others, can induce uncontrolled inflammation and autoinflammatory diseases. Therefore, this review aims to present the most current scientific data on the molecular interplay between inflammasomes and particular microorganisms. Knowledge about the mechanisms responsible for the interaction between the host and certain types of microorganisms could contribute to the individuation of innovative strategies for the treatment of uncontrolled inflammation targeting a specific type of inflammasome activated by a specific type of pathogen.
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Asaad M, Abo-kadoum M, NZUNGIZE L, UAE M, NZAOU SA, Xie J. Methylation in Mycobacterium-host interaction and implications for novel control measures. INFECTION GENETICS AND EVOLUTION 2020; 83:104350. [DOI: 10.1016/j.meegid.2020.104350] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/16/2020] [Accepted: 05/01/2020] [Indexed: 12/12/2022]
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40
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Poli G, Fabi C, Bellet MM, Costantini C, Nunziangeli L, Romani L, Brancorsini S. Epigenetic Mechanisms of Inflammasome Regulation. Int J Mol Sci 2020; 21:E5758. [PMID: 32796686 PMCID: PMC7460952 DOI: 10.3390/ijms21165758] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/05/2020] [Accepted: 08/08/2020] [Indexed: 02/07/2023] Open
Abstract
The innate immune system represents the host's first-line defense against pathogens, dead cells or environmental factors. One of the most important inflammatory pathways is represented by the activation of the NOD-like receptor (NLR) protein family. Some NLRs induce the assembly of large caspase-1-activating complexes called inflammasomes. Different types of inflammasomes have been identified that can respond to distinct bacterial, viral or fungal infections; sterile cell damage or other stressors, such as metabolic imbalances. Epigenetic regulation has been recently suggested to provide a complementary mechanism to control inflammasome activity. This regulation can be exerted through at least three main mechanisms, including CpG DNA methylation, histones post-translational modifications and noncoding RNA expression. The repression or promotion of expression of different inflammasomes (NLRP1, NLRP2, NLRP3, NLRP4, NLRP6, NLRP7, NLRP12 and AIM2) through epigenetic mechanisms determines the development of pathologies with variable severity. For example, our team recently explored the role of microRNAs (miRNAs) targeting and modulating the components of the inflammasome as potential biomarkers in bladder cancer and during therapy. This suggests that the epigenetic control of inflammasome-related genes could represent a potential target for further investigations of molecular mechanisms regulating inflammatory pathways.
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Affiliation(s)
- Giulia Poli
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Consuelo Fabi
- Department of Surgical and Biomedical Sciences, Urology and Andrology Clinic, University of Perugia, 05100 Terni, Italy;
| | - Marina Maria Bellet
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Claudio Costantini
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Luisa Nunziangeli
- Polo d’Innovazione di Genomica, Genetica e Biologia, 05100 Terni, Italy;
| | - Luigina Romani
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Stefano Brancorsini
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
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Chai Q, Wang L, Liu CH, Ge B. New insights into the evasion of host innate immunity by Mycobacterium tuberculosis. Cell Mol Immunol 2020; 17:901-913. [PMID: 32728204 PMCID: PMC7608469 DOI: 10.1038/s41423-020-0502-z] [Citation(s) in RCA: 147] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 06/22/2020] [Indexed: 12/26/2022] Open
Abstract
Mycobacterium tuberculosis (Mtb) is an extremely successful intracellular pathogen that causes tuberculosis (TB), which remains the leading infectious cause of human death. The early interactions between Mtb and the host innate immune system largely determine the establishment of TB infection and disease development. Upon infection, host cells detect Mtb through a set of innate immune receptors and launch a range of cellular innate immune events. However, these innate defense mechanisms are extensively modulated by Mtb to avoid host immune clearance. In this review, we describe the emerging role of cytosolic nucleic acid-sensing pathways at the host-Mtb interface and summarize recently revealed mechanisms by which Mtb circumvents host cellular innate immune strategies such as membrane trafficking and integrity, cell death and autophagy. In addition, we discuss the newly elucidated strategies by which Mtb manipulates the host molecular regulatory machinery of innate immunity, including the intranuclear regulatory machinery, the ubiquitin system, and cellular intrinsic immune components. A better understanding of innate immune evasion mechanisms adopted by Mtb will provide new insights into TB pathogenesis and contribute to the development of more effective TB vaccines and therapies.
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Affiliation(s)
- Qiyao Chai
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, 100101, Beijing, China.,Savaid Medical School, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Lin Wang
- Shanghai Key Lab of Tuberculosis, Shanghai Pulmonary Hospital, Tongji University School of Medicine, 200433, Shanghai, China
| | - Cui Hua Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, 100101, Beijing, China. .,Savaid Medical School, University of Chinese Academy of Sciences, 101408, Beijing, China.
| | - Baoxue Ge
- Shanghai Key Lab of Tuberculosis, Shanghai Pulmonary Hospital, Tongji University School of Medicine, 200433, Shanghai, China.
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Li Z, Guo J, Bi L. Role of the NLRP3 inflammasome in autoimmune diseases. Biomed Pharmacother 2020; 130:110542. [PMID: 32738636 DOI: 10.1016/j.biopha.2020.110542] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/13/2020] [Accepted: 07/20/2020] [Indexed: 12/12/2022] Open
Abstract
NOD-like receptor family pyrin domain containing 3 (NLRP3) is an intracellular receptor that senses foreign pathogens and endogenous danger signals. It assembles with apoptosis-associated speck-like protein containing a CARD (ASC) and caspase-1 to form a multimeric protein called the NLRP3 inflammasome. Among its various functions, the NLRP3 inflammasome can induce the release of the pro-inflammatory cytokines interleukin (IL)-1β and IL-18 while also promoting gasdermin D (GSDMD)-mediated pyroptosis. Previous studies have established a vital role for the NLRP3 inflammasome in innate and adaptive immune system as well as its contribution to several autoimmune diseases including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), Sjögren's syndrome (SS), systemic sclerosis (SSc), and ankylosing spondylitis (AS). In this review, we briefly introduce the biological features of the NLRP3 inflammasome and present the mechanisms underlying its activation and regulation. We also summarize recent studies that have reported on the roles of NLRP3 inflammasome in the immune system and several autoimmune diseases, with a focus on therapeutic and clinical applications.
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Affiliation(s)
- Zhe Li
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Jialong Guo
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Liqi Bi
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.
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Zheng D, Liwinski T, Elinav E. Inflammasome activation and regulation: toward a better understanding of complex mechanisms. Cell Discov 2020; 6:36. [PMID: 32550001 PMCID: PMC7280307 DOI: 10.1038/s41421-020-0167-x] [Citation(s) in RCA: 488] [Impact Index Per Article: 122.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 04/05/2020] [Indexed: 02/07/2023] Open
Abstract
Inflammasomes are cytoplasmic multiprotein complexes comprising a sensor protein, inflammatory caspases, and in some but not all cases an adapter protein connecting the two. They can be activated by a repertoire of endogenous and exogenous stimuli, leading to enzymatic activation of canonical caspase-1, noncanonical caspase-11 (or the equivalent caspase-4 and caspase-5 in humans) or caspase-8, resulting in secretion of IL-1β and IL-18, as well as apoptotic and pyroptotic cell death. Appropriate inflammasome activation is vital for the host to cope with foreign pathogens or tissue damage, while aberrant inflammasome activation can cause uncontrolled tissue responses that may contribute to various diseases, including autoinflammatory disorders, cardiometabolic diseases, cancer and neurodegenerative diseases. Therefore, it is imperative to maintain a fine balance between inflammasome activation and inhibition, which requires a fine-tuned regulation of inflammasome assembly and effector function. Recently, a growing body of studies have been focusing on delineating the structural and molecular mechanisms underlying the regulation of inflammasome signaling. In the present review, we summarize the most recent advances and remaining challenges in understanding the ordered inflammasome assembly and activation upon sensing of diverse stimuli, as well as the tight regulations of these processes. Furthermore, we review recent progress and challenges in translating inflammasome research into therapeutic tools, aimed at modifying inflammasome-regulated human diseases.
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Affiliation(s)
- Danping Zheng
- Immunology Department, Weizmann Institute of Science, Rehovot, 7610001 Israel
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Timur Liwinski
- Immunology Department, Weizmann Institute of Science, Rehovot, 7610001 Israel
- 1st Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eran Elinav
- Immunology Department, Weizmann Institute of Science, Rehovot, 7610001 Israel
- Cancer-Microbiome Division Deutsches Krebsforschungszentrum (DKFZ), Neuenheimer Feld 280, 69120 Heidelberg, Germany
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Bannister S, Messina NL, Novakovic B, Curtis N. The emerging role of epigenetics in the immune response to vaccination and infection: a systematic review. Epigenetics 2020; 15:555-593. [PMID: 31914857 PMCID: PMC7574386 DOI: 10.1080/15592294.2020.1712814] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 12/20/2019] [Indexed: 12/14/2022] Open
Abstract
Extensive research has highlighted the role of infection-induced epigenetic events in the development of cancer. More recently, attention has focused on the ability of non-carcinogenic infections, as well as vaccines, to modify the human epigenome and modulate the immune response. This review explores this rapidly evolving area of investigation and outlines the many and varied ways in which vaccination and natural infection can influence the human epigenome from modulation of the innate and adaptive immune response, to biological ageing and modification of disease risk. The implications of these epigenetic changes on immune regulation and their potential application to the diagnosis and treatment of chronic infection and vaccine development are also discussed.
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Affiliation(s)
- Samantha Bannister
- Department of Paediatrics, The University of Melbourne, Parkville, Australia
- Infectious Diseases Research Group, Murdoch Children’s Research Institute, Parkville, Australia
- Infectious Diseases Unit, Royal Children’s Hospital Melbourne, Parkville, Australia
| | - Nicole L. Messina
- Department of Paediatrics, The University of Melbourne, Parkville, Australia
- Infectious Diseases Research Group, Murdoch Children’s Research Institute, Parkville, Australia
| | - Boris Novakovic
- Department of Paediatrics, The University of Melbourne, Parkville, Australia
- Epigenetics Research Group, Murdoch Children’s Research Institute, Parkville, Australia
| | - Nigel Curtis
- Department of Paediatrics, The University of Melbourne, Parkville, Australia
- Infectious Diseases Research Group, Murdoch Children’s Research Institute, Parkville, Australia
- Infectious Diseases Unit, Royal Children’s Hospital Melbourne, Parkville, Australia
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Chen YC, Hsiao CC, Chen TW, Wu CC, Chao TY, Leung SY, Eng HL, Lee CP, Wang TY, Lin MC. Whole Genome DNA Methylation Analysis of Active Pulmonary Tuberculosis Disease Identifies Novel Epigenotypes: PARP9/ miR-505/ RASGRP4/ GNG12 Gene Methylation and Clinical Phenotypes. Int J Mol Sci 2020; 21:ijms21093180. [PMID: 32365959 PMCID: PMC7246806 DOI: 10.3390/ijms21093180] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 12/30/2022] Open
Abstract
We hypothesized that DNA methylation patterns may contribute to the development of active pulmonary tuberculosis (TB). Illumina’s DNA methylation 450 K assay was used to identify differentially methylated loci (DML) in a discovery cohort of 12 active pulmonary TB patients and 6 healthy subjects (HS). DNA methylation levels were validated in an independent cohort of 64 TB patients and 24 HS. Microarray analysis identified 1028 DMLs in TB patients versus HS, and 3747 DMLs in TB patients after versus before anti-TB treatment, while autophagy was the most enriched signaling pathway. In the validation cohort, PARP9 and miR505 genes were hypomethylated in the TB patients versus HS, while RASGRP4 and GNG12 genes were hypermethylated, with the former two further hypomethylated in those with delayed sputum conversion, systemic symptoms, or far advanced lesions. MRPS18B and RPTOR genes were hypomethylated in TB patients with pleural involvement. RASGRP4 gene hypermethylation and RPTOR gene down-regulation were associated with high mycobacterial burden. TB patients with WIPI2/GNG12 hypermethylation or MRPS18B/FOXO3 hypomethylation had lower one-year survival. In vitro ESAT6 and CFP10 stimuli of THP-1 cells resulted in DNA de-methylation changes of the PARP9, RASGRP4, WIPI2, and FOXO3 genes. In conclusions, aberrant DNA methylation over the PARP9/miR505/RASGRP4/GNG12 genes may contribute to the development of active pulmonary TB disease and its clinical phenotypes, while aberrant DNA methylation over the WIPI2/GNG12/MARPS18B/FOXO3 genes may constitute a determinant of long-term outcomes.
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Affiliation(s)
- Yung-Che Chen
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (C.-C.W.); (T.-Y.C.); (S.-Y.L.); (C.-P.L.); (T.-Y.W.)
- Graduate Institute of Clinical Medical Sciences and Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Correspondence: (Y.-C.C.); (M.-C.L.); Tel.: +886-975056041 (Y.-C.C.); +886-7-731-7123 (ext 8199) (M.-C.L.)
| | - Chang-Chun Hsiao
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (C.-C.W.); (T.-Y.C.); (S.-Y.L.); (C.-P.L.); (T.-Y.W.)
- Graduate Institute of Clinical Medical Sciences and Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Ting-Wen Chen
- Molecular Medicine Research Center, and Bioinformatics Center, Chang Gung University, Taoyuan 33302, Taiwan;
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu 30068, Taiwan
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 30068, Taiwan
- Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Chiao Tung University, Hsinchu 30068, Taiwan
| | - Chao-Chien Wu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (C.-C.W.); (T.-Y.C.); (S.-Y.L.); (C.-P.L.); (T.-Y.W.)
| | - Tung-Ying Chao
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (C.-C.W.); (T.-Y.C.); (S.-Y.L.); (C.-P.L.); (T.-Y.W.)
| | - Sum-Yee Leung
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (C.-C.W.); (T.-Y.C.); (S.-Y.L.); (C.-P.L.); (T.-Y.W.)
| | - Hock-Liew Eng
- Division of Clinical Pathology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan;
| | - Chiu-Ping Lee
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (C.-C.W.); (T.-Y.C.); (S.-Y.L.); (C.-P.L.); (T.-Y.W.)
| | - Ting-Ya Wang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (C.-C.W.); (T.-Y.C.); (S.-Y.L.); (C.-P.L.); (T.-Y.W.)
| | - Meng-Chih Lin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (C.-C.W.); (T.-Y.C.); (S.-Y.L.); (C.-P.L.); (T.-Y.W.)
- Correspondence: (Y.-C.C.); (M.-C.L.); Tel.: +886-975056041 (Y.-C.C.); +886-7-731-7123 (ext 8199) (M.-C.L.)
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Tezcan G, Martynova EV, Gilazieva ZE, McIntyre A, Rizvanov AA, Khaiboullina SF. MicroRNA Post-transcriptional Regulation of the NLRP3 Inflammasome in Immunopathologies. Front Pharmacol 2019; 10:451. [PMID: 31118894 PMCID: PMC6504709 DOI: 10.3389/fphar.2019.00451] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 04/08/2019] [Indexed: 12/13/2022] Open
Abstract
Inflammation has a crucial role in protection against various pathogens. The inflammasome is an intracellular multiprotein signaling complex that is linked to pathogen sensing and initiation of the inflammatory response in physiological and pathological conditions. The most characterized inflammasome is the NLRP3 inflammasome, which is a known sensor of cell stress and is tightly regulated in resting cells. However, altered regulation of the NLRP3 inflammasome is found in several pathological conditions, including autoimmune disease and cancer. NLRP3 expression was shown to be post-transcriptionally regulated and multiple miRNA have been implicated in post-transcriptional regulation of the inflammasome. Therefore, in recent years, miRNA based post-transcriptional control of NLRP3 has become a focus of much research, especially as a potential therapeutic approach. In this review, we provide a summary of the recent investigations on the role of miRNA in the post-transcriptional control of the NLRP3 inflammasome, a key regulator of pro-inflammatory IL-1β and IL-18 cytokine production. Current approaches to targeting the inflammasome product were shown to be an effective treatment for diseases linked to NLRP3 overexpression. Although utilizing NLRP3 targeting miRNAs was shown to be a successful therapeutic approach in several animal models, their therapeutic application in patients remains to be determined.
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Affiliation(s)
- Gulcin Tezcan
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | | | - Zarema E. Gilazieva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Alan McIntyre
- Centre for Cancer Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, United Kingdom
| | - Albert A. Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Svetlana F. Khaiboullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Department of Microbiology and Immunology, University of Nevada, Reno, Reno, NV, United States
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CD82 hypomethylation is essential for tuberculosis pathogenesis via regulation of RUNX1-Rab5/22. Exp Mol Med 2018; 50:1-15. [PMID: 29760437 PMCID: PMC5951854 DOI: 10.1038/s12276-018-0091-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 03/08/2018] [Accepted: 03/09/2018] [Indexed: 01/23/2023] Open
Abstract
The tumor suppressor gene CD82/KAI1 is a member of the tetraspanin superfamily and organizes various membrane-based processes. Mycobacterium tuberculosis (MTB) persists in host macrophages by interfering with phagolysosome biogenesis and inflammatory responses, but the role of CD82 in controlling the intracellular survival of pathogenic mycobacteria within macrophages remains poorly understood. In this study, we demonstrated that the virulent MTB strain H37Rv (MTB Rv) induced CD82 promoter hypomethylation, resulting in CD82 expression. Targeting of the runt-related transcription factor 1 (RUNX1) by CD82 is essential for phagosome arrest via interacting with Rab5/22. This arrest is required for the intracellular growth of MTB in vitro and in vivo, but not for that of MTB H37Ra (MTB Ra) in macrophages. In addition, knockdown or knockout of CD82 or RUNX1 increased antibacterial host defense via phagolysosome biogenesis, inflammatory cytokine production, and subsequent antimicrobial activity both in vitro and in vivo. Notably, the levels of CD82 and RUNX1 in granulomas were elevated in tuberculosis (TB) patients, indicating that CD82 and RUNX1 have clinical significance in human TB. Our findings identify a previously unrecognized role of CD82 hypomethylation in the regulation of phagosome maturation, enhanced intracellular survival, and the innate host immune response to MTB. Thus, the CD82-RUNX1-Rab5/22 axis may be a previously unrecognized virulence mechanism of MTB pathogenesis.
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Lin LR, Xiao Y, Liu W, Chen YY, Zhu XZ, Gao ZX, Gao K, Tong ML, Zhang HL, Li SL, Lin HL, Li WD, Liang XM, Lin Y, Liu LL, Yang TC. Development of tissue inflammation accompanied by NLRP3 inflammasome activation in rabbits infected with Treponema pallidum strain Nichols. BMC Infect Dis 2018; 18:101. [PMID: 29490620 PMCID: PMC5831842 DOI: 10.1186/s12879-018-2993-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 02/13/2018] [Indexed: 12/31/2022] Open
Abstract
Background The inflammasome responses in Treponema pallidum infection have been poorly understood to date. This study aimed to investigate the expression of the nucleotide-binding leucine-rich receptor protein 3 (NLRP3) inflammasome in the development of tissue inflammation in rabbits infected with T. pallidum. Methods Forty-five rabbits were randomly assigned to a blank group or an infection group, and the latter was divided into no benzathine penicillin G (BPG) and BPG treatment subgroups. Rabbits in the infection group were injected intradermally with 0.1 mL of a 107/mL T. pallidum suspension at 10 marked sites along the back, and the blank group was treated with normal saline. The BPG treatment subgroup received 200,000 U of BPG administered intramuscularly twice, at 14 d and 21 d post-infection. The development of lesions was observed, and biopsies of the injection site and various organs, including the kidney, liver, spleen, lung, and testis, were obtained for NLRP3, caspase-1, and interleukin-1β (IL-1β) mRNA analysis during infection. Blood was also collected for the determination of IL-1β concentration. Results Rabbits infected with T. pallidum (both the BPG treatment and no BPG treatment subgroups), exhibited NLRP3 inflammasome activation and IL-1β secretion in cutaneous lesions, showing a trend in elevation to decline; NLRP3 mRNA expression reached a peak at 18 d in the BPG treatment subgroup and 21 d in the no BPG treatment subgroup and returned to “normal” levels [vs. the blank group (P > 0.05)] at 42 d post-infection. The trend was similar to the change in cutaneous lesions in the infected rabbits, which reached a peak at 16 d in the BPG treatment subgroup and 18 d in the no BPG treatment subgroup. NLRP3, caspase-1, and IL-1β mRNA expression levels were slightly different in different organs. NLRP3 inflammasome activation was also observed in the kidney, liver, lung, spleen and testis. IL-1β expression was observed in the kidney, liver, lung and spleen; however, there was no detectable level of IL-1β in the testes of the infected rabbits. Conclusions This study established a clear link between NLRP3 inflammasome activation and the development of tissue inflammation in rabbits infected with T. pallidum. BPG therapy imperceptibly adjusted syphilitic inflammation.
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Affiliation(s)
- Li-Rong Lin
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China.,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China
| | - Yao Xiao
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China.,Xiamen Hospital of Traditional Chinese Medicine, Xiamen, Fujian Province, China
| | - Wei Liu
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China.,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China
| | - Yu-Yan Chen
- Xiamen Fifth Hospital, Xiamen, Fujian Province, China
| | - Xiao-Zhen Zhu
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China.,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China
| | - Zheng-Xiang Gao
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China.,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China
| | - Kun Gao
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China.,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China
| | - Man-Li Tong
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China.,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China
| | - Hui-Lin Zhang
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China.,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China
| | - Shu-Lian Li
- Xiamen Huli District Maternity and Child Care Hospital, Xiamen, Fujian Province, China
| | - Hui-Ling Lin
- Xiamen Huli District Maternity and Child Care Hospital, Xiamen, Fujian Province, China
| | - Wen-Dong Li
- Xiamen Huli District Maternity and Child Care Hospital, Xiamen, Fujian Province, China
| | - Xian-Ming Liang
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China
| | - Yong Lin
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China. .,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China.
| | - Li-Li Liu
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China. .,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China.
| | - Tian-Ci Yang
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, Fujian Province, China. .,Institute of Infectious Disease, Medical College of Xiamen University, Xiamen, Fujian Province, China.
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49
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Zhou Z, Wang L, Wen Z, Zheng S, Ye X, Liu D, Wu J, Zou X, Liu Y, Wang Y, Dong S, Huang X, Du X, Zhu K, Chen X, Huang S, Zeng C, Han Y, Zhang B, Nie L, Yang G, Jing C. Association Analysis of NLRP3 Inflammation-Related Gene Promotor Methylation as Well as Mediating Effects on T2DM and Vascular Complications in a Southern Han Chinese Population. Front Endocrinol (Lausanne) 2018; 9:709. [PMID: 30555415 PMCID: PMC6281743 DOI: 10.3389/fendo.2018.00709] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 11/09/2018] [Indexed: 12/19/2022] Open
Abstract
Objective: To explore the association between the methylation levels in the promoter regions of the NLRP3, AIM2, and ASC genes and T2DM and its vascular complications in a Southern Han Chinese population and further analyze their interaction and mediating effects with environmental factors in T2DM. Methods: A case-control study was used to determine the association between population characteristics, the methylation level in the promoter region of the NLRP3, AIM2, and ASC genes and T2DM and vascular complications. A mediating effect among genes-environment-T2DM and the interaction of gene-gene or gene-environment factors was explored. Results: In the logistic regression model with adjusted covariants, healthy people with lower total methylation levels in the AIM2 promoter region exhibited a 2.29-fold [OR: 2.29 (1.28~6.66), P = 0.011] increased risk of developing T2DM compared with higher-methylation individuals. T2DM patients without any vascular complications who had lower methylation levels (<methylation median) in NLRP3 CpG2 and AIM2 total methylation had 6.45 (OR: 6.45, 95% CI: 1.05~39.78, P = 0.011) and 9.48 (OR: 9.48, 95% CI: 1.14~79.00, P = 0.038) times higher risks, respectively, of developing diabetic microvascular complications than T2DM patients with higher methylation. Similar associations were also found between the lower total methylation of the NLRP3 and AIM2 promoter regions and macrovascular complication risk (NLRP3 OR: 36.03, 95% CI: 3.11~417.06, P = 0.004; AIM2 OR: 30.90, 95% CI: 2.59~368.49, P = 0.007). Lower NLRP3 promoter total methylation was related to a 17.78-fold increased risk of micro-macrovascular complications (OR: 17.78, 95% CI: 2.04~155.28, P = 0.009). Lower ASC CpG1 or CpG3 methylation levels had significant partial mediating effects on T2DM vascular complications caused by higher age (ASC CpG1 explained approximately 52.8% or 32.9% of the mediating effect of age on macrovascular or macro-microvascular complications; ASC CpG3 explained approximately 38.9% of the mediating effect of age on macrovascular complications). No gene-gene or gene-environment interaction was identified in T2DM. Conclusion: Lower levels of AIM2 promoter total methylation might increase the risk of T2DM. NLRP3, AIM2, and ASC promoter total methylation or some CpG methylation loss might increase the risk of T2DM vascular complications, which merits further study to support the robustness of these findings.
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Affiliation(s)
- Zixing Zhou
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Lijun Wang
- Department of Nutriology, School of Medicine, Jinan University, Guangzhou, China
| | - Zihao Wen
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Shaoling Zheng
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaohong Ye
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Dandan Liu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Jing Wu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaoqian Zou
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Yumei Liu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Yao Wang
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Shirui Dong
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiuxia Huang
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiuben Du
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Kehui Zhu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaojing Chen
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Shiqi Huang
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Chengli Zeng
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Yajing Han
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Baohuan Zhang
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Lihong Nie
- Department of Endocrine, The First Affiliated Hospital of Jinan University, Guangzhou, China
- *Correspondence: Lihong Nie
| | - Guang Yang
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China
- Guangzhou Key Laboratory of Environmental Exposure and Health, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, China
- Guang Yang
| | - Chunxia Jing
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
- Guangzhou Key Laboratory of Environmental Exposure and Health, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, China
- Chunxia Jing
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50
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Mvubu NE, Pillay B, McKinnon LR, Pillay M. Mycobacterium tuberculosis strains induce strain-specific cytokine and chemokine response in pulmonary epithelial cells. Cytokine 2017; 104:53-64. [PMID: 29032986 DOI: 10.1016/j.cyto.2017.09.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 09/23/2017] [Accepted: 09/23/2017] [Indexed: 02/07/2023]
Abstract
M. tuberculosis F15/LAM4/KZN has been associated with high transmission rates of drug resistant tuberculosis in the KwaZulu-Natal province of South Africa. The current study elucidated the cytokine/chemokine responses induced by representatives of the F15/LAM4/KZN and other dominant strain families in pulmonary epithelial cells. Multiplex cytokine analyses were performed at 24, 48 and 72h post infection of the A549 pulmonary epithelial cell line with the F15/LAM4/KZN, F28, F11, Beijing, Unique and H37Rv strains at an MOI of ∼10:1. Twenty-three anti- and pro-inflammatory cytokines/chemokines were detected at all-time intervals. Significantly high concentrations of IL-6, IFN-γ, TNF-α and G-CSF at 48h, and IL-8, IFN-γ, TNF-α, G-CSF and GM-CSF at 72h, were induced by the F28 and F15/LAM4/KZN strains, respectively. Lower levels of cytokines/chemokines were induced by either the Beijing or Unique strains at all three time intervals. All strains induced up-regulation of pathogen recognition receptors (PRRs) (TLR3 and TLR5) while only the F15/LAM4/KZN, F11 and F28 strains induced significant differential expression of TLR2 compared to the Beijing, Unique and H37Rv strains. The low induction of cytokines in epithelial cells by the Beijing strain correlates with its previously reported hypervirulent properties. High concentrations of cytokines and chemokines required for early protection against M. tuberculosis infections induced by the F15/LAM4/KZN and F28 strains suggests a lower virulence of these genotypes compared to the Beijing strain. These findings demonstrate the high diversity in host cytokine/chemokine response to early infection of pulmonary epithelial cells by different strains of M. tuberculosis.
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Affiliation(s)
- Nontobeko E Mvubu
- School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville 3630, South Africa.
| | - Balakrishna Pillay
- School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville 3630, South Africa.
| | - Lyle R McKinnon
- Centre for the AIDS Program of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa; Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada.
| | - Manormoney Pillay
- Medical Microbiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, 719 Umbilo Road, South Africa.
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