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Parameswaran P, Payne L, Powers J, Rashighi M, Orzalli MH. A viral E3 ubiquitin ligase produced by herpes simplex virus 1 inhibits the NLRP1 inflammasome. J Exp Med 2024; 221:e20231518. [PMID: 38861480 PMCID: PMC11167375 DOI: 10.1084/jem.20231518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 04/01/2024] [Accepted: 05/15/2024] [Indexed: 06/13/2024] Open
Abstract
Guard proteins initiate defense mechanisms upon sensing pathogen-encoded virulence factors. Successful viral pathogens likely inhibit guard protein activity, but these interactions have been largely undefined. Here, we demonstrate that the human pathogen herpes simplex virus 1 (HSV-1) stimulates and inhibits an antiviral pathway initiated by NLRP1, a guard protein that induces inflammasome formation and pyroptotic cell death when activated. Notably, HSV-1 infection of human keratinocytes promotes posttranslational modifications to NLRP1, consistent with MAPK-dependent NLRP1 activation, but does not result in downstream inflammasome formation. We identify infected cell protein 0 (ICP0) as the critical HSV-1 protein that is necessary and sufficient for inhibition of the NLRP1 pathway. Mechanistically, ICP0's cytoplasmic localization and function as an E3 ubiquitin ligase prevents proteasomal degradation of the auto-inhibitory NT-NLRP1 fragment, thereby preventing inflammasome formation. Further, we demonstrate that inhibiting this inflammasome is important for promoting HSV-1 replication. Thus, we have established a mechanism by which HSV-1 overcomes a guard-mediated antiviral defense strategy in humans.
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Affiliation(s)
- Pooja Parameswaran
- Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Program in Innate Immunity, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Immunology and Microbiology Program, Morningside Graduate School of Biomedical Sciences, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Laurellee Payne
- Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Program in Innate Immunity, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Jennifer Powers
- Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Program in Innate Immunity, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Mehdi Rashighi
- Immunology and Microbiology Program, Morningside Graduate School of Biomedical Sciences, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Department of Dermatology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Megan H. Orzalli
- Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Program in Innate Immunity, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Immunology and Microbiology Program, Morningside Graduate School of Biomedical Sciences, University of Massachusetts Chan Medical School, Worcester, MA, USA
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2
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An J, Yang H, Park SM, Chwae YJ, Joe EH. The LRRK2-G2019S mutation attenuates repair of brain injury partially by reducing the release of osteopontin-containing monocytic exosome-like vesicles. Neurobiol Dis 2024; 197:106528. [PMID: 38740348 DOI: 10.1016/j.nbd.2024.106528] [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: 02/19/2024] [Revised: 04/22/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Brain injury has been suggested as a risk factor for neurodegenerative diseases. Accordingly, defects in the brain's intrinsic capacity to repair injury may result in the accumulation of damage and a progressive loss of brain function. The G2019S (GS) mutation in LRRK2 (leucine rich repeat kinase 2) is the most prevalent genetic alteration in Parkinson's disease (PD). Here, we sought to investigate how this LRRK2-GS mutation affects repair of the injured brain. METHODS Brain injury was induced by stereotaxic injection of ATP, a damage-associated molecular pattern (DAMP) component, into the striatum of wild-type (WT) and LRRK2-GS mice. Effects of the LRRK2-GS mutation on brain injury and the recovery from injury were examined by analyzing the molecular and cellular behavior of neurons, astrocytes, and monocytes. RESULTS Damaged neurons express osteopontin (OPN), a factor associated with brain repair. Following ATP-induced damage, monocytes entered injured brains, phagocytosing damaged neurons and producing exosome-like vesicles (EVs) containing OPN through activation of the inflammasome and subsequent pyroptosis. Following EV production, neurons and astrocytes processes elongated towards injured cores. In LRRK2-GS mice, OPN expression and monocytic pyroptosis were decreased compared with that in WT mice, resulting in diminished release of OPN-containing EVs and attenuated elongation of neuron and astrocyte processes. In addition, exosomes prepared from injured LRRK2-GS brains induced neurite outgrowth less efficiently than those from injured WT brains. CONCLUSIONS The LRRK2-GS mutation delays repair of injured brains through reduced expression of OPN and diminished release of OPN-containing EVs from monocytes. These findings suggest that the LRRK2-GS mutation may promote the development of PD by delaying the repair of brain injury.
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Affiliation(s)
- Jiawei An
- Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea; Department of Pharmacology, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea; Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea
| | - Haijie Yang
- Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea; Department of Pharmacology, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea; Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea
| | - Sang Myun Park
- Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea; Department of Pharmacology, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea; Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea
| | - Yong-Joon Chwae
- Department of Microbiology, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea
| | - Eun-Hye Joe
- Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea; Department of Pharmacology, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea; Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, Kyunggi-do 16499, Republic of Korea.
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3
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Izumi Y, O'Dell KA, Cashikar AG, Paul SM, Covey DF, Mennerick SJ, Zorumski CF. Neurosteroids mediate and modulate the effects of pro-inflammatory stimulation and toll-like receptors on hippocampal plasticity and learning. PLoS One 2024; 19:e0304481. [PMID: 38875235 PMCID: PMC11178232 DOI: 10.1371/journal.pone.0304481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 05/13/2024] [Indexed: 06/16/2024] Open
Abstract
Pro-inflammatory changes contribute to multiple neuropsychiatric illnesses. Understanding how these changes are involved in illnesses and identifying strategies to alter inflammatory responses offer paths to potentially novel treatments. We previously found that acute pro-inflammatory stimulation with high (μg/ml) lipopolysaccharide (LPS) for 10-15 min dampens long-term potentiation (LTP) in the hippocampus and impairs learning. Effects of LPS involved non-canonical inflammasome signaling but were independent of toll-like receptor 4 (TLR4), a known LPS receptor. Low (ng/ml) LPS also inhibits LTP when administered for 2-4 h, and here we report that this LPS exposure requires TLR4. We also found that effects of low LPS on LTP involve the oxysterol, 25-hydroxycholesterol, akin to high LPS. Effects of high LPS on LTP are blocked by inhibiting synthesis of 5α-reduced neurosteroids, indicating that neurosteroids mediate LTP inhibition. 5α-Neurosteroids also have anti-inflammatory effects, and we found that exogenous allopregnanolone (AlloP), a key 5α-reduced steroid, prevented effects of low but not high LPS on LTP. We also found that activation of TLR2, TLR3 and TLR7 inhibited LTP and that AlloP prevented the effects of TLR2 and TLR7, but not TLR3. The enantiomer of AlloP, a steroid that has anti-inflammatory actions but low activity at GABAA receptors, prevented LTP inhibition by TLR2, TLR3 and TLR7. In vivo, both AlloP enantiomers prevented LPS-induced learning defects. These studies indicate that neurosteroids play complex roles in network effects of acute neuroinflammation and have potential importance for development of AlloP analogues as therapeutic agents.
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Affiliation(s)
- Yukitoshi Izumi
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Kazuko A O'Dell
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Anil G Cashikar
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Steven M Paul
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Douglas F Covey
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
- Developmental Biology and Anesthesiology, Washington University School of Medicine, St. Louis, MO, United States of America
- Developmental Biology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Steven J Mennerick
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Charles F Zorumski
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
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4
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Liu X, Lieberman J. Inflammasome-independent pyroptosis. Curr Opin Immunol 2024; 88:102432. [PMID: 38875738 DOI: 10.1016/j.coi.2024.102432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 05/27/2024] [Accepted: 05/30/2024] [Indexed: 06/16/2024]
Abstract
Gasdermins are membrane pore-forming proteins that cause pyroptosis, an inflammatory cell death in which cells burst and release cytokines, chemokines, and other host alarm signals, such as ATP and HMGB1, which recruit and activate immune cells at sites of infection and danger. There are five gasdermins in humans - gasdermins A to E. Pyroptosis was first described in myeloid cells and mucosal epithelia, which express gasdermin D and activate it when cytosolic sensors of invasive infection or tissue damage assemble into large macromolecular structures, called inflammasomes. Inflammasomes recruit and activate inflammatory caspases (caspase 1, 4, 5, and 11), which cut gasdermin D to remove an inhibitory C-terminal domain, allowing the N-terminal domain to bind to membrane acidic lipids and oligomerize into pores. Recent studies have identified inflammasome-independent proteolytic pathways that activate gasdermin D and the other gasdermins. Here, we review inflammasome-independent pyroptosis pathways and what is known about their role in normal physiology and disease.
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Affiliation(s)
- Xing Liu
- Key Laboratory of RNA Science and Engineering, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200031, China.
| | - Judy Lieberman
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA.
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He C, Liu J, Li J, Wu H, Jiao C, Ze X, Xu S, Zhu Z, Guo W, Xu J, Yao H. Hit-to-Lead Optimization of the Natural Product Oridonin as Novel NLRP3 Inflammasome Inhibitors with Potent Anti-Inflammation Activity. J Med Chem 2024; 67:9406-9430. [PMID: 38751194 DOI: 10.1021/acs.jmedchem.4c00504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Targeting NLRP3 inflammasome with inhibitors is a novel strategy for NLRP3-driven diseases. Herein, hit compound 5 possessing an attractive skeleton was identified from our in-house database of oridonin, and then a potential lead compound 32 was obtained by optimization of 5, displaying two-digit nanomolar inhibition on NLRP3. Moreover, compound 32 showed enhanced safety index (SI) relative to oridonin (IC50 = 77.2 vs 780.4 nM, SI = 40.5 vs 8.5) and functioned through blocking ASC oligomerization and interaction of NLRP3-ASC/NEK7, thereby suppressing NLRP3 inflammasome assembly and activation. Furthermore, diverse agonists-induced activations of NLRP3 could be impeded by compound 32 without altering NLRC4 or AIM2 inflammasome. Crucially, compound 32 possessed tolerable pharmaceutical properties and significant anti-inflammatory activity in MSU-induced gouty arthritis model. Therefore, this work enriched the SAR of NLRP3 inflammasome inhibitors and provided a potential candidate for the treatment of NLRP3-associated diseases.
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Affiliation(s)
- Chen He
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Junkai Liu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Junda Li
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Hongyu Wu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Chenyang Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, P. R. China
| | - Xiaotong Ze
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Shengtao Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Zheying Zhu
- Division of Molecular Therapeutics & Formulation, School of Pharmacy, The University of Nottingham, Nottingham NG7 2RD, U.K
| | - Wenjie Guo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, P. R. China
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Hong Yao
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
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6
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Akaho R, Kiyoura Y, Tamai R. Synergistic effect of Toll-like receptor 2 ligands and alendronate on proinflammatory cytokine production in mouse macrophage-like RAW-ASC cells is accompanied by upregulation of MyD88 expression. J Oral Biosci 2024; 66:412-419. [PMID: 38614429 DOI: 10.1016/j.job.2024.04.003] [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: 12/11/2023] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 04/15/2024]
Abstract
OBJECTIVES Toll-like receptors (TLRs) recognize whole cells or components of microorganisms. Alendronate (ALN) is an anti-bone-resorptive drug that has inflammatory side effects. The aim in this study was to examine whether ALN augments TLR2 ligand-induced proinflammatory cytokine production using mouse macrophage-like RAW264.7 cells transfected with murine apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) gene (hereafter, referred to as "RAW-ASC cells"). METHODS RAW-ASC cells were pretreated with or without ALN and then incubated with or without TLR2 ligands. The levels of secreted mouse IL-1α, IL-1β, IL-6, and tumor necrosis factor-α (TNF-α) in culture supernatants and the activation of activator protein-1 (AP-1) or nuclear factor-κB (NF-κB) were measured using enzyme-linked immunosorbent assay (ELISA). The expressions of myeloid differentiation factor 88 (MyD88), caspase-11, nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3), ASC, NF-κB p65, and actin were analyzed via Western blotting. TLR2 expression was analyzed using flow cytometry. RESULTS ALN substantially upregulated the Pam3CSK4-induced release of IL-1α, IL-1β, IL-6, and TNF-α and MyD88 expression in RAW-ASC cells. ST-2825, a MyD88 inhibitor, inhibited the ALN-augmented release of these cytokines. Pretreatment with ALN augmented Pam3CSK4-induced NF-κB activation in RAW-ASC cells and upregulated AP-1 activation. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) S protein and ALN synergically upregulated the release of IL-1α, IL-1β, IL-6 and TNF-α in RAW-ASC cells. CONCLUSIONS Our findings suggest that ALN augments TLR2 ligand-induced proinflammatory cytokine production via the upregulation of MyD88 expression, and this augmentation is accompanied by the activation of NF-κB and AP-1 in RAW-ASC cells.
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Affiliation(s)
- Reiko Akaho
- Department of Infectious Diseases, Ohu University Graduate School of Dentistry, 31-1 Misumido, Tomitamachi, Koriyama, Fukushima, 963-8611, Japan
| | - Yusuke Kiyoura
- Department of Infectious Diseases, Ohu University Graduate School of Dentistry, 31-1 Misumido, Tomitamachi, Koriyama, Fukushima, 963-8611, Japan; Department of Oral Medical Science, Ohu University School of Dentistry, 31-1 Misumido, Tomitamachi, Koriyama, Fukushima, 963-8611, Japan
| | - Riyoko Tamai
- Department of Infectious Diseases, Ohu University Graduate School of Dentistry, 31-1 Misumido, Tomitamachi, Koriyama, Fukushima, 963-8611, Japan; Department of Oral Medical Science, Ohu University School of Dentistry, 31-1 Misumido, Tomitamachi, Koriyama, Fukushima, 963-8611, Japan.
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7
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Robinson KS, Boucher D. Inflammasomes in epithelial innate immunity: front line warriors. FEBS Lett 2024; 598:1335-1353. [PMID: 38485451 DOI: 10.1002/1873-3468.14848] [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: 11/23/2023] [Revised: 02/22/2024] [Accepted: 02/22/2024] [Indexed: 06/12/2024]
Abstract
Our epithelium represents a battle ground against a variety of insults including pathogens and danger signals. It encodes multiple sensors that detect and respond to such insults, playing an essential role in maintaining and defending tissue homeostasis. One key set of defense mechanisms is our inflammasomes which drive innate immune responses including, sensing and responding to pathogen attack, through the secretion of pro-inflammatory cytokines and cell death. Identification of physiologically relevant triggers for inflammasomes has greatly influenced our ability to decipher the mechanisms behind inflammasome activation. Furthermore, identification of patient mutations within inflammasome components implicates their involvement in a range of epithelial diseases. This review will focus on exploring the roles of inflammasomes in epithelial immunity and cover: the diversity and differential expression of inflammasome sensors amongst our epithelial barriers, their ability to sense local infection and damage and the contribution of the inflammasomes to epithelial homeostasis and disease.
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Affiliation(s)
- Kim Samirah Robinson
- The Skin Innate Immunity and Inflammatory Disease Lab, Skin Research Centre, Department of Hull York Medical School, University of York, UK
- York Biomedical Research Institute, University of York, UK
| | - Dave Boucher
- York Biomedical Research Institute, University of York, UK
- Department of Biology, University of York, UK
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8
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Didilescu AC, Chinthamani S, Scannapieco FA, Sharma A. NLRP3 inflammasome activity and periodontal disease pathogenesis-A bidirectional relationship. Oral Dis 2024. [PMID: 38817019 DOI: 10.1111/odi.15005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 03/09/2024] [Accepted: 05/07/2024] [Indexed: 06/01/2024]
Abstract
OBJECTIVE Periodontitis is an inflammatory oral disease that occurs as a result of the damaging effects of the immune response against the subgingival microflora. Among the mechanisms involved, the nucleotide-binding oligomerization domain, leucine-rich repeat-containing proteins family member NLRP3 (NLR family pyrin domain-containing 3), proposed as the key regulator of macrophage-induced inflammation, is strongly associated with periodontal disease due to the bacterial activators. This paper aimed to present key general concepts of NLRP3 inflammasome activation and regulation in periodontal disease. METHOD A narrative review was conducted in order to depict the current knowledge on the relationship between NLRP3 inflammasome activity and periodontal disease. In vitro and in situ studies were retrieved and commented based on their relevance in the field. RESULTS The NLRP3 inflammasome activity stimulated by periodontal microbiota drive periodontal disease pathogenesis and progression. This occurs through the release of proinflammatory cytokines IL-1β, IL-18, and DAMPs (damage-associated molecular pattern molecules) following inflammasome activation. Moreover, the tissue expression of NLRP3 is dysregulated by oral microbiota, further exacerbating periodontal inflammation. CONCLUSION The review provides new insights into the relationship between the NLRP3 inflammasome activity and periodontal disease pathogenesis, highlighting the roles and regulatory mechanism of inflammatory molecules involved in the disease process.
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Affiliation(s)
- Andreea C Didilescu
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, New York, USA
- Department of Embryology, Faculty of Dentistry, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Sreedevi Chinthamani
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, New York, USA
| | - Frank A Scannapieco
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, New York, USA
| | - Ashu Sharma
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, New York, USA
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9
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Alonaizan R. Molecular regulation of NLRP3 inflammasome activation during parasitic infection. Biosci Rep 2024; 44:BSR20231918. [PMID: 38623843 PMCID: PMC11096646 DOI: 10.1042/bsr20231918] [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: 11/05/2023] [Revised: 03/26/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024] Open
Abstract
Parasitic diseases are a serious global health concern, causing many common and severe infections, including Chagas disease, leishmaniasis, and schistosomiasis. The NLRP3 inflammasome belongs to the NLR (nucleotide-binding domain leucine-rich-repeat-containing proteins) family, which are cytosolic proteins playing key roles in the detection of pathogens. NLRP3 inflammasomes are activated in immune responses to Plasmodium, Leishmania, Toxoplasma gondii, Entamoeba histolytica, Trypanosoma cruzi, and other parasites. The role of NLRP3 is not fully understood, but it is a crucial component of the innate immune response to parasitic infections and its functions as a sensor triggering the inflammatory response to the invasive parasites. However, while this response can limit the parasites' growth, it can also result in potentially catastrophic host pathology. This makes it essential to understand how NLRP3 interacts with parasites to initiate the inflammatory response. Plasmodium hemozoin, Leishmania glycoconjugate lipophosphoglycan (LPG) and E. histolytica Gal/GalNAc lectin can stimulate NLRP3 activation, while the dense granule protein 9 (GRA9) of T. gondii has been shown to suppress it. Several other parasitic products also have diverse effects on NLRP3 activation. Understanding the mechanism of NLRP3 interaction with these products will help to develop advanced therapeutic approaches to treat parasitic diseases. This review summarizes current knowledge of the NLRP3 inflammasome's action on the immune response to parasitic infections and aims to determine the mechanisms through which parasitic molecules either activate or inhibit its action.
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Affiliation(s)
- Rasha Alonaizan
- Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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10
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Tang Y, Wu J, Sun X, Tan S, Li W, Yin S, Liu L, Chen Y, Liu Y, Tan Q, Jiang Y, Yang W, Huang W, Weng C, Wu Q, Lu Y, Yuan H, Xiao Q, Chen AF, Xu Q, Billiar TR, Cai J. Cardiolipin oxidized by ROS from complex II acts as a target of gasdermin D to drive mitochondrial pore and heart dysfunction in endotoxemia. Cell Rep 2024; 43:114237. [PMID: 38753484 DOI: 10.1016/j.celrep.2024.114237] [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: 12/28/2022] [Revised: 04/16/2024] [Accepted: 04/30/2024] [Indexed: 05/18/2024] Open
Abstract
Cardiac dysfunction, an early complication of endotoxemia, is the major cause of death in intensive care units. No specific therapy is available at present for this cardiac dysfunction. Here, we show that the N-terminal gasdermin D (GSDMD-N) initiates mitochondrial apoptotic pore and cardiac dysfunction by directly interacting with cardiolipin oxidized by complex II-generated reactive oxygen species (ROS) during endotoxemia. Caspase-4/11 initiates GSDMD-N pores that are subsequently amplified by the upregulation and activation of NLRP3 inflammation through further generation of ROS. GSDMD-N pores form prior to BAX and VDAC1 apoptotic pores and further incorporate into BAX and VDAC1 oligomers within mitochondria membranes to exacerbate the apoptotic process. Our findings identify oxidized cardiolipin as the definitive target of GSDMD-N in mitochondria of cardiomyocytes during endotoxin-induced myocardial dysfunction (EIMD), and modulation of cardiolipin oxidation could be a therapeutic target early in the disease process to prevent EIMD.
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Affiliation(s)
- Yan Tang
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China; Department of Cardiology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Junru Wu
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Xuejing Sun
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Shasha Tan
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Wenbo Li
- Department of Plastic and Aesthetic (Burn) Surgery, the Second Xiangya Hospital, Central South University, Changsha 410000, China
| | - Siyu Yin
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Lun Liu
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yuanyuan Chen
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yuanyuan Liu
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Qian Tan
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Youxiang Jiang
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Wenjing Yang
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Wei Huang
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Chunyan Weng
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Qing Wu
- Center for High-Performance Computing, Central South University, Changsha 410000, China
| | - Yao Lu
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Hong Yuan
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Qingzhong Xiao
- Centre for Clinical Pharmacology, William Harvey Research Institute, Barts, and The London School of Medicine and Dentistry, Queen Mary University of London, EC1M 6BQ London, UK
| | - Alex F Chen
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China; Department of Cardiology, Institute for Cardiovascular Development and Regenerative Medicine, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 200092 Shanghai, China
| | - Qingbo Xu
- Department of Cardiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Timothy R Billiar
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Jingjing Cai
- Clinical Research Center, Department of Cardiology, the Third Xiangya Hospital, Central South University, Changsha 410013, China.
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11
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Jastrab JB, Kagan JC. Strategies of bacterial detection by inflammasomes. Cell Chem Biol 2024; 31:835-850. [PMID: 38636521 PMCID: PMC11103797 DOI: 10.1016/j.chembiol.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/09/2024] [Accepted: 03/26/2024] [Indexed: 04/20/2024]
Abstract
Mammalian innate immunity is regulated by pattern-recognition receptors (PRRs) and guard proteins, which use distinct strategies to detect infections. PRRs detect bacterial molecules directly, whereas guards detect host cell manipulations by microbial virulence factors. Despite sensing infection through different mechanisms, both classes of innate immune sensors can activate the inflammasome, an immune complex that can mediate cell death and inflammation. Inflammasome-mediated immune responses are crucial for host defense against many bacterial pathogens and prevent invasion by non-pathogenic organisms. In this review, we discuss the mechanisms by which inflammasomes are stimulated by PRRs and guards during bacterial infection, and the strategies used by virulent bacteria to evade inflammasome-mediated immunity.
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Affiliation(s)
- Jordan B Jastrab
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA; Division of Infectious Diseases, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Jonathan C Kagan
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA.
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12
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Bibo-Verdugo B, Salvesen G. Evolution of Caspases and the Invention of Pyroptosis. Int J Mol Sci 2024; 25:5270. [PMID: 38791309 PMCID: PMC11121540 DOI: 10.3390/ijms25105270] [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: 04/16/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
The protein scaffold that includes the caspases is ancient and found in all domains of life. However, the stringent specificity that defines the caspase biologic function is relatively recent and found only in multicellular animals. During the radiation of the Chordata, members of the caspase family adopted roles in immunity, events coinciding with the development of substrates that define the modern innate immune response. This review focuses on the switch from the non-inflammatory cellular demise of apoptosis to the highly inflammatory innate response driven by distinct members of the caspase family, and the interplay between these two regulated cell death pathways.
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Affiliation(s)
- Betsaida Bibo-Verdugo
- Instituto Tecnológico de La Paz, Boulevard Forjadores de Baja California Sur 4720, La Paz 23080, Mexico;
| | - Guy Salvesen
- Sanford Burnham Prebys Medical Discovery Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
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13
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Arimoto KI, Miyauchi S, Liu M, Zhang DE. Emerging role of immunogenic cell death in cancer immunotherapy. Front Immunol 2024; 15:1390263. [PMID: 38799433 PMCID: PMC11116615 DOI: 10.3389/fimmu.2024.1390263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/26/2024] [Indexed: 05/29/2024] Open
Abstract
Cancer immunotherapy, such as immune checkpoint blockade (ICB), has emerged as a groundbreaking approach for effective cancer treatment. Despite its considerable potential, clinical studies have indicated that the current response rate to cancer immunotherapy is suboptimal, primarily attributed to low immunogenicity in certain types of malignant tumors. Immunogenic cell death (ICD) represents a form of regulated cell death (RCD) capable of enhancing tumor immunogenicity and activating tumor-specific innate and adaptive immune responses in immunocompetent hosts. Therefore, gaining a deeper understanding of ICD and its evolution is crucial for developing more effective cancer therapeutic strategies. This review focuses exclusively on both historical and recent discoveries related to ICD modes and their mechanistic insights, particularly within the context of cancer immunotherapy. Our recent findings are also highlighted, revealing a mode of ICD induction facilitated by atypical interferon (IFN)-stimulated genes (ISGs), including polo-like kinase 2 (PLK2), during hyperactive type I IFN signaling. The review concludes by discussing the therapeutic potential of ICD, with special attention to its relevance in both preclinical and clinical settings within the field of cancer immunotherapy.
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Affiliation(s)
- Kei-ichiro Arimoto
- Moores Cancer Center, University of California San Diego, La Jolla, CA, United States
| | - Sayuri Miyauchi
- Moores Cancer Center, University of California San Diego, La Jolla, CA, United States
| | - Mengdan Liu
- Moores Cancer Center, University of California San Diego, La Jolla, CA, United States
- School of Biological Sciences, University of California San Diego, La Jolla, CA, United States
| | - Dong-Er Zhang
- Moores Cancer Center, University of California San Diego, La Jolla, CA, United States
- School of Biological Sciences, University of California San Diego, La Jolla, CA, United States
- Department of Pathology, University of California San Diego, La Jolla, CA, United States
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14
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Fu M, Wang J, Xu D, Cao N, Li W, Li F, Liu Z, Li Y, Zhu C, Huang Y, Zhang X. Polysaccharide of Atractylodes macrocephala Koidz alleviates LPS-induced proliferation, differentiation inhibition and excessive apoptosis in chicken embryonic myogenic cells. Vet Med Sci 2024; 10:e1412. [PMID: 38504633 PMCID: PMC10951630 DOI: 10.1002/vms3.1412] [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: 07/10/2023] [Revised: 01/30/2024] [Accepted: 02/22/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Lipopolysaccharide (LPS) can induce systemic inflammation and affect the growth and development of poultry. As a kind of traditional Chinese medicine, polysaccharide of Atractylodes macrocephala Koidz (PAMK) can effectively improve the growth performance of animals and improve the immunity of animal bodies. OBJECTIVES The purpose of this study was to investigate the effects of PAMK on LPS-induced inflammatory response, proliferation, differentiation and apoptosis of chicken embryonic myogenic cells. METHODS We used chicken embryonic myogenic cells as a model by detecting EdU/MYHC immunofluorescence, the expression of inflammation, proliferation, differentiation-related genes and proteins and the number of apoptotic cells in the condition of adding LPS, PAMK, belnacasan (an inhibitor of Caspase1) or their combinations. RESULTS The results showed that LPS stimulation increased the expression of inflammatory factors, inhibited proliferation and differentiation, and excessive apoptosis in chicken embryonic myogenic cells, and PAMK alleviated these adverse effects induced by LPS. After the addition of belnacasan (inhibitor of Caspase1), apoptosis in myogenic cells was inhibited, and therefore, the number of apoptotic cells and the expression of pro-apoptotic genes Caspase1 and Caspase3 were increased. In addition, belnacasan inhibited the increased expression of inflammatory factors, inhibited proliferation, differentiation and excessive apoptosis in chicken embryonic myogenic cells induced by LPS. CONCLUSIONS This study provides a theoretical basis for further exploring the mechanism of action of PAMK and exogenous LPS on chicken embryonic myogenic cells and lays the foundation for the development and application of green feed additives in animal husbandry industry.
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Affiliation(s)
- Mengsi Fu
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Jinhui Wang
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Danning Xu
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Nan Cao
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Wanyan Li
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Fada Li
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Zhiyuan Liu
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Yong Li
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Chenyu Zhu
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Yunmao Huang
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Xumeng Zhang
- College of Animal Science & TechnologyZhongkai University of Agriculture and EngineeringGuangzhouChina
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15
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Wei C, Jiang W, Wang R, Zhong H, He H, Gao X, Zhong S, Yu F, Guo Q, Zhang L, Schiffelers LDJ, Zhou B, Trepel M, Schmidt FI, Luo M, Shao F. Brain endothelial GSDMD activation mediates inflammatory BBB breakdown. Nature 2024; 629:893-900. [PMID: 38632402 DOI: 10.1038/s41586-024-07314-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/14/2024] [Indexed: 04/19/2024]
Abstract
The blood-brain barrier (BBB) protects the central nervous system from infections or harmful substances1; its impairment can lead to or exacerbate various diseases of the central nervous system2-4. However, the mechanisms of BBB disruption during infection and inflammatory conditions5,6 remain poorly defined. Here we find that activation of the pore-forming protein GSDMD by the cytosolic lipopolysaccharide (LPS) sensor caspase-11 (refs. 7-9), but not by TLR4-induced cytokines, mediates BBB breakdown in response to circulating LPS or during LPS-induced sepsis. Mice deficient in the LBP-CD14 LPS transfer and internalization pathway10-12 resist BBB disruption. Single-cell RNA-sequencing analysis reveals that brain endothelial cells (bECs), which express high levels of GSDMD, have a prominent response to circulating LPS. LPS acting on bECs primes Casp11 and Cd14 expression and induces GSDMD-mediated plasma membrane permeabilization and pyroptosis in vitro and in mice. Electron microscopy shows that this features ultrastructural changes in the disrupted BBB, including pyroptotic endothelia, abnormal appearance of tight junctions and vasculature detachment from the basement membrane. Comprehensive mouse genetic analyses, combined with a bEC-targeting adeno-associated virus system, establish that GSDMD activation in bECs underlies BBB disruption by LPS. Delivery of active GSDMD into bECs bypasses LPS stimulation and opens the BBB. In CASP4-humanized mice, Gram-negative Klebsiella pneumoniae infection disrupts the BBB; this is blocked by expression of a GSDMD-neutralizing nanobody in bECs. Our findings outline a mechanism for inflammatory BBB breakdown, and suggest potential therapies for diseases of the central nervous system associated with BBB impairment.
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Affiliation(s)
- Chao Wei
- Chinese Institute for Brain Research, Beijing, P. R. China
| | - Wei Jiang
- National Institute of Biological Sciences, Beijing, P. R. China
- Research Unit of Pyroptosis and Immunity, Chinese Academy of Medical Sciences and National Institute of Biological Sciences, Beijing, P. R. China
| | - Ruiyu Wang
- National Institute of Biological Sciences, Beijing, P. R. China
| | - Haoyu Zhong
- National Institute of Biological Sciences, Beijing, P. R. China
| | - Huabin He
- National Institute of Biological Sciences, Beijing, P. R. China
- Research Unit of Pyroptosis and Immunity, Chinese Academy of Medical Sciences and National Institute of Biological Sciences, Beijing, P. R. China
| | - Xinwei Gao
- Chinese Institute for Brain Research, Beijing, P. R. China
| | - Shilin Zhong
- National Institute of Biological Sciences, Beijing, P. R. China
| | - Fengting Yu
- Chinese Institute for Brain Research, Beijing, P. R. China
| | - Qingchun Guo
- Chinese Institute for Brain Research, Beijing, P. R. China
| | - Li Zhang
- Chinese Institute for Brain Research, Beijing, P. R. China
| | - Lisa D J Schiffelers
- Institute of Innate Immunity, Medical Faculty, University of Bonn, Bonn, Germany
| | - Bin Zhou
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, P. R. China
| | - Martin Trepel
- Department of Hematology and Medical Oncology, University Medical Center Augsburg, Augsburg, Germany
| | - Florian I Schmidt
- Institute of Innate Immunity, Medical Faculty, University of Bonn, Bonn, Germany
| | - Minmin Luo
- Chinese Institute for Brain Research, Beijing, P. R. China.
- National Institute of Biological Sciences, Beijing, P. R. China.
- Research Unit of Medical Neurobiology, Chinese Academy of Medical Sciences, Beijing, P. R. China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, P. R. China.
- New Cornerstone Science Laboratory, Shenzhen, P. R. China.
| | - Feng Shao
- National Institute of Biological Sciences, Beijing, P. R. China.
- Research Unit of Pyroptosis and Immunity, Chinese Academy of Medical Sciences and National Institute of Biological Sciences, Beijing, P. R. China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, P. R. China.
- New Cornerstone Science Laboratory, Shenzhen, P. R. China.
- Changping Laboratory, Beijing, P. R. China.
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16
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Li J, Wu H, Zhou J, Jiang R, Zhuo Z, Yang Q, Chen H, Sha W. Ruscogenin Attenuates Ulcerative Colitis in Mice by Inhibiting Caspase-1-Dependent Pyroptosis via the TLR4/NF-κB Signaling Pathway. Biomedicines 2024; 12:989. [PMID: 38790951 PMCID: PMC11117655 DOI: 10.3390/biomedicines12050989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/17/2024] [Accepted: 04/27/2024] [Indexed: 05/26/2024] Open
Abstract
Inflammatory bowel diseases (IBD) are chronic inflammatory disorders affecting the digestive tract, including ulcerative colitis and Crohn's disease. Ruscogenin, a prominent steroidal sapogenin present in radix ophiopogon japonicus, has shown a protective effect on attenuating the inflammatory response associated with inflammatory diseases, but the efficacy of ruscogenin in IBD remains unclear. The aim of this study is to explore the effect of ruscogenin on intestinal barrier dysfunction and inflammatory responses as well as the underlying mechanism in ulcerative colitis. A dextran sulfate sodium salt (DSS)-induced C57BL/6 mouse colitis model was employed for the in vivo studies, while in vitro experiments were performed in THP-1 cells and human intestinal epithelial cells involved in inducing inflammatory responses and pyroptosis using LPS/nigericin. The results indicated that ruscogenin treatment attenuated the symptoms of ulcerative colitis, reduced the release of inflammatory cytokines and the expression of pyroptosis-associated proteins, and restored the integrity of the intestinal epithelial barrier in colon tissue in mice. Moreover, ruscogenin inhibited LPS/nigericin-induced pyroptosis in THP-1 cells. Mechanically, ruscogenin inhibited NLRP3 inflammasome activation and canonical pyroptosis, at least in part, through the suppression of the TLR4/NF-κB signaling pathway. These findings might provide new insights and a solid foundation for further exploration into the therapeutic potential of ruscogenin in the treatment of IBD.
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Affiliation(s)
- Jingwei Li
- Department of Gastroenterology, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China; (J.L.); (R.J.); (Z.Z.); (Q.Y.)
| | - Huihuan Wu
- Department of Gastroenterology, The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan 528200, China;
| | - Jialiang Zhou
- Department of Neonatal Surgery, Guangdong Women and Children Hospital, Guangzhou 511400, China
| | - Rui Jiang
- Department of Gastroenterology, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China; (J.L.); (R.J.); (Z.Z.); (Q.Y.)
| | - Zewei Zhuo
- Department of Gastroenterology, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China; (J.L.); (R.J.); (Z.Z.); (Q.Y.)
| | - Qi Yang
- Department of Gastroenterology, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China; (J.L.); (R.J.); (Z.Z.); (Q.Y.)
| | - Hao Chen
- Department of Gastroenterology, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China; (J.L.); (R.J.); (Z.Z.); (Q.Y.)
| | - Weihong Sha
- Department of Gastroenterology, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China; (J.L.); (R.J.); (Z.Z.); (Q.Y.)
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17
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Carpenter S, O'Neill LAJ. From periphery to center stage: 50 years of advancements in innate immunity. Cell 2024; 187:2030-2051. [PMID: 38670064 PMCID: PMC11060700 DOI: 10.1016/j.cell.2024.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/24/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024]
Abstract
Over the past 50 years in the field of immunology, something of a Copernican revolution has happened. For a long time, immunologists were mainly concerned with what is termed adaptive immunity, which involves the exquisitely specific activities of lymphocytes. But the other arm of immunity, so-called "innate immunity," had been neglected. To celebrate Cell's 50th anniversary, we have put together a review of the processes and components of innate immunity and trace the seminal contributions leading to the modern state of this field. Innate immunity has joined adaptive immunity in the center of interest for all those who study the body's defenses, as well as homeostasis and pathology. We are now entering the era where therapeutic targeting of innate immune receptors and downstream signals hold substantial promise for infectious and inflammatory diseases and cancer.
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Affiliation(s)
- Susan Carpenter
- University of California Santa Cruz, 1156 High St., Santa Cruz, CA 95064, USA.
| | - Luke A J O'Neill
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.
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18
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Wright SS, Wang C, Ta A, Havira MS, Ruan J, Rathinam VA, Vanaja SK. A bacterial toxin co-opts caspase-3 to disable active gasdermin D and limit macrophage pyroptosis. Cell Rep 2024; 43:114004. [PMID: 38522070 PMCID: PMC11095105 DOI: 10.1016/j.celrep.2024.114004] [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: 11/07/2023] [Revised: 02/15/2024] [Accepted: 03/11/2024] [Indexed: 03/26/2024] Open
Abstract
During infections, host cells are exposed to pathogen-associated molecular patterns (PAMPs) and virulence factors that stimulate multiple signaling pathways that interact additively, synergistically, or antagonistically. The net effect of such higher-order interactions is a vital determinant of the outcome of host-pathogen interactions. Here, we demonstrate one such complex interplay between bacterial exotoxin- and PAMP-induced innate immune pathways. We show that two caspases activated during enterohemorrhagic Escherichia coli (EHEC) infection by lipopolysaccharide (LPS) and Shiga toxin (Stx) interact in a functionally antagonistic manner; cytosolic LPS-activated caspase-11 cleaves full-length gasdermin D (GSDMD), generating an active pore-forming N-terminal fragment (NT-GSDMD); subsequently, caspase-3 activated by EHEC Stx cleaves the caspase-11-generated NT-GSDMD to render it nonfunctional, thereby inhibiting pyroptosis and interleukin-1β maturation. Bacteria typically subvert inflammasomes by targeting upstream components such as NLR sensors or full-length GSDMD but not active NT-GSDMD. Thus, our findings uncover a distinct immune evasion strategy where a bacterial toxin disables active NT-GSDMD by co-opting caspase-3.
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Affiliation(s)
- Skylar S Wright
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Avenue, Farmington, CT 06030, USA
| | - Chengliang Wang
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Avenue, Farmington, CT 06030, USA
| | - Atri Ta
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA 02111, USA
| | | | - Jianbin Ruan
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Avenue, Farmington, CT 06030, USA
| | - Vijay A Rathinam
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Avenue, Farmington, CT 06030, USA
| | - Sivapriya Kailasan Vanaja
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Avenue, Farmington, CT 06030, USA.
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19
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Sasaki I, Fukuda-Ohta Y, Nakai C, Wakaki-Nishiyama N, Okamoto C, Okuzaki D, Morita S, Kaji S, Furuta Y, Hemmi H, Kato T, Yamamoto A, Tosuji E, Saitoh SI, Tanaka T, Hoshino K, Fukuda S, Miyake K, Kuroda E, Ishii KJ, Iwawaki T, Furukawa K, Kaisho T. A stress sensor, IRE1α, is required for bacterial-exotoxin-induced interleukin-1β production in tissue-resident macrophages. Cell Rep 2024; 43:113981. [PMID: 38520688 DOI: 10.1016/j.celrep.2024.113981] [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: 07/24/2023] [Revised: 01/31/2024] [Accepted: 03/06/2024] [Indexed: 03/25/2024] Open
Abstract
Cholera toxin (CT), a bacterial exotoxin composed of one A subunit (CTA) and five B subunits (CTB), functions as an immune adjuvant. CTB can induce production of interleukin-1β (IL-1β), a proinflammatory cytokine, in synergy with a lipopolysaccharide (LPS), from resident peritoneal macrophages (RPMs) through the pyrin and NLRP3 inflammasomes. However, how CTB or CT activates these inflammasomes in the macrophages has been unclear. Here, we clarify the roles of inositol-requiring enzyme 1 alpha (IRE1α), an endoplasmic reticulum (ER) stress sensor, in CT-induced IL-1β production in RPMs. In RPMs, CTB is incorporated into the ER and induces ER stress responses, depending on GM1, a cell membrane ganglioside. IRE1α-deficient RPMs show a significant impairment of CT- or CTB-induced IL-1β production, indicating that IRE1α is required for CT- or CTB-induced IL-1β production in RPMs. This study demonstrates the critical roles of IRE1α in activation of both NLRP3 and pyrin inflammasomes in tissue-resident macrophages.
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Affiliation(s)
- Izumi Sasaki
- Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan.
| | - Yuri Fukuda-Ohta
- Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan; Laboratory for Protein Conformation Diseases, RIKEN Center for Brain Science, Wako, Saitama 351-0198, Japan
| | - Chihiro Nakai
- Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Naoko Wakaki-Nishiyama
- Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Chizuyo Okamoto
- Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shuhei Morita
- First Department of Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Shiori Kaji
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Yuki Furuta
- Department of Thoracic and Cardiovascular Surgery, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Hiroaki Hemmi
- Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan; Laboratory of Immunology, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime 794-8555, Japan
| | - Takashi Kato
- Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Asumi Yamamoto
- Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Emi Tosuji
- Department of Dermatology, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Shin-Ichiroh Saitoh
- Department of Intractable Disorders, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Takashi Tanaka
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Science, Yokohama, Kanagawa 230-0045, Japan
| | - Katsuaki Hoshino
- Department of Immunology, Faculty of Medicine, Kagawa University, Miki, Kagawa 761-0793, Japan
| | - Shinji Fukuda
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan; Gut Environmental Design Group, Kanagawa Institute of Industrial Science and Technology, Kawasaki, Kanagawa 210-0821, Japan; Transborder Medical Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Laboratory for Regenerative Microbiology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Kensuke Miyake
- Division of Innate Immunity, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Etsushi Kuroda
- Department of Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo 663-8501, Japan
| | - Ken J Ishii
- Division of Vaccine Science, Department of Microbiology and Immunology, The Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Takao Iwawaki
- Division of Cell Medicine, Department of Life Science, Medical Research Institute, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Tsuneyasu Kaisho
- Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama 641-8509, Japan.
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20
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Yu J, Zhao Z, Li Y, Chen J, Huang N, Luo Y. Role of NLRP3 in Parkinson's disease: Specific activation especially in dopaminergic neurons. Heliyon 2024; 10:e28838. [PMID: 38596076 PMCID: PMC11002585 DOI: 10.1016/j.heliyon.2024.e28838] [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: 11/15/2023] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/11/2024] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder with motor symptoms like bradykinesia, tremors, and balance issues. The pathology is recognized by progressively degenerative nigrostriatal dopaminergic neurons (DANs) loss. Its exact pathogenesis is unclear. Numerous studies have shown that nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) contributes to the pathogenesis of PD. Previous studies have demonstrated that the over-activation of NLRP3 inflammasome in microglia indirectly leads to the loss of DANs, which can worsen PD. In recent years, autopsy analyses of PD patients and studies in PD models have revealed upregulation of NLRP3 expression within DANs and demonstrated that activation of NLRP3 inflammasome in neurons is sufficient to drive neuronal loss, whereas microglial activation occurs after neuronal death, and that inhibition of intraneuronal NLRP3 inflammasome prevents degeneration of DANs. In this review, we provide research evidence related to NLRP3 inflammasome in DANs in PD as well as focus on possible mechanisms of NLRP3 inflammasome activation in neurons, aiming to provide a new way of thinking about the pathogenesis and prevention of PD.
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Affiliation(s)
- Juan Yu
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563000, China
| | - Zhanghong Zhao
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563000, China
| | - Yuanyuan Li
- National Drug Clinical Trial Institution, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Jian Chen
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563000, China
| | - Nanqu Huang
- National Drug Clinical Trial Institution, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Yong Luo
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, 563000, China
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21
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Merk D, Cox FF, Jakobs P, Prömel S, Altschmied J, Haendeler J. Dose-Dependent Effects of Lipopolysaccharide on the Endothelium-Sepsis versus Metabolic Endotoxemia-Induced Cellular Senescence. Antioxidants (Basel) 2024; 13:443. [PMID: 38671891 PMCID: PMC11047739 DOI: 10.3390/antiox13040443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
The endothelium, the innermost cell layer of blood vessels, is not only a physical barrier between the bloodstream and the surrounding tissues but has also essential functions in vascular homeostasis. Therefore, it is not surprising that endothelial dysfunction is associated with most cardiovascular diseases. The functionality of the endothelium is compromised by endotoxemia, the presence of bacterial endotoxins in the bloodstream with the main endotoxin lipopolysaccharide (LPS). Therefore, this review will focus on the effects of LPS on the endothelium. Depending on the LPS concentration, the outcomes are either sepsis or, at lower concentrations, so-called low-dose or metabolic endotoxemia. Sepsis, a life-threatening condition evoked by hyperactivation of the immune response, includes breakdown of the endothelial barrier resulting in failure of multiple organs. A deeper understanding of the underlying mechanisms in the endothelium might help pave the way to new therapeutic options in sepsis treatment to prevent endothelial leakage and fatal septic shock. Low-dose endotoxemia or metabolic endotoxemia results in chronic inflammation leading to endothelial cell senescence, which entails endothelial dysfunction and thus plays a critical role in cardiovascular diseases. The identification of compounds counteracting senescence induction in endothelial cells might therefore help in delaying the onset or progression of age-related pathologies. Interestingly, two natural plant-derived substances, caffeine and curcumin, have shown potential in preventing endothelial cell senescence.
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Affiliation(s)
- Dennis Merk
- Environmentally-Induced Cardiovascular Degeneration, Clinical Chemistry and Laboratory Diagnostics, Medical Faculty, University Hospital and Heinrich-Heine-University, 40225 Düsseldorf, Germany; (D.M.); (F.F.C.); (P.J.)
| | - Fiona Frederike Cox
- Environmentally-Induced Cardiovascular Degeneration, Clinical Chemistry and Laboratory Diagnostics, Medical Faculty, University Hospital and Heinrich-Heine-University, 40225 Düsseldorf, Germany; (D.M.); (F.F.C.); (P.J.)
- Medical Faculty, Institute for Translational Pharmacology, University Hospital and Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - Philipp Jakobs
- Environmentally-Induced Cardiovascular Degeneration, Clinical Chemistry and Laboratory Diagnostics, Medical Faculty, University Hospital and Heinrich-Heine-University, 40225 Düsseldorf, Germany; (D.M.); (F.F.C.); (P.J.)
| | - Simone Prömel
- Department of Biology, Institute of Cell Biology, Heinrich-Heine-University, 40225 Düsseldorf, Germany;
| | - Joachim Altschmied
- Environmentally-Induced Cardiovascular Degeneration, Clinical Chemistry and Laboratory Diagnostics, Medical Faculty, University Hospital and Heinrich-Heine-University, 40225 Düsseldorf, Germany; (D.M.); (F.F.C.); (P.J.)
- Medical Faculty, Cardiovascular Research Institute Düsseldorf, CARID, University Hospital and Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany
| | - Judith Haendeler
- Environmentally-Induced Cardiovascular Degeneration, Clinical Chemistry and Laboratory Diagnostics, Medical Faculty, University Hospital and Heinrich-Heine-University, 40225 Düsseldorf, Germany; (D.M.); (F.F.C.); (P.J.)
- Medical Faculty, Cardiovascular Research Institute Düsseldorf, CARID, University Hospital and Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany
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22
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Mărunţelu I, Constantinescu AE, Covache-Busuioc RA, Constantinescu I. The Golgi Apparatus: A Key Player in Innate Immunity. Int J Mol Sci 2024; 25:4120. [PMID: 38612929 PMCID: PMC11012725 DOI: 10.3390/ijms25074120] [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: 02/10/2024] [Revised: 04/02/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024] Open
Abstract
The Golgi apparatus, long recognized for its roles in protein processing and vesicular trafficking, has recently been identified as a crucial contributor to innate immune signaling pathways. This review discusses our expanding understanding of the Golgi apparatus's involvement in initiating and activating these pathways. It highlights the significance of membrane connections between the Golgi and other organelles, such as the endoplasmic reticulum, mitochondria, endosomes, and autophagosomes. These connections are vital for the efficient transmission of innate immune signals and the activation of effector responses. Furthermore, the article delves into the Golgi apparatus's roles in key immune pathways, including the inflammasome-mediated activation of caspase-1, the cGAS-STING pathway, and TLR/RLR signaling. Overall, this review aims to provide insights into the multifunctional nature of the Golgi apparatus and its impact on innate immunity.
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Affiliation(s)
- Ion Mărunţelu
- Immunology and Transplant Immunology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Centre of Immunogenetics and Virology, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Alexandra-Elena Constantinescu
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (A.-E.C.); (R.-A.C.-B.)
- “Emil Palade” Center of Excellence for Young Researchers (EP-CEYR), Romanian Academy of Scientists (AOSR), 050094 Bucharest, Romania
| | - Razvan-Adrian Covache-Busuioc
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (A.-E.C.); (R.-A.C.-B.)
| | - Ileana Constantinescu
- Immunology and Transplant Immunology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Centre of Immunogenetics and Virology, Fundeni Clinical Institute, 022328 Bucharest, Romania
- “Emil Palade” Center of Excellence for Young Researchers (EP-CEYR), Romanian Academy of Scientists (AOSR), 050094 Bucharest, Romania
- Romanian Academy of Scientists (AOSR), 050094 Bucharest, Romania
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23
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Pandori WJ, Matsuno SY, Shin JH, Kim SC, Kao TH, Mallya S, Batarseh SN, Lodoen MB. Role for Caspase-8 in the Release of IL-1β and Active Caspase-1 from Viable Human Monocytes during Toxoplasma gondii Infection. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:1161-1171. [PMID: 38372637 DOI: 10.4049/jimmunol.2200513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 01/16/2024] [Indexed: 02/20/2024]
Abstract
Monocytes are actively recruited to sites of infection and produce the potent proinflammatory cytokine IL-1β. We previously showed that IL-1β release during Toxoplasma gondii infection of primary human monocytes requires the NLRP3 inflammasome and caspase-1 but is independent of gasdermin D and pyroptosis. To investigate mechanisms of IL-1β release, we generated caspase-1, -4, -5, or -8 knockout (KO) THP-1 monocytic cells. Genetic ablation of caspase-1 or -8, but not caspase-4 or -5, decreased IL-1β release during T. gondii infection without affecting cell death. In contrast, TNF-α and IL-6 secretion were unperturbed in caspase-8 KO cells during T. gondii infection. Dual pharmacological inhibition of caspase-8 and RIPK1 in primary monocytes also decreased IL-1β release without affecting cell viability or parasite infection. Caspase-8 was also required for the release of active caspase-1 from T. gondii-infected cells and for IL-1β release during infection with the related apicomplexan parasite Neospora caninum. Surprisingly, caspase-8 deficiency did not impair synthesis or cleavage of pro-IL-1β, but resulted in the retention of mature IL-1β within cells. Generation of gasdermin E KO and ATG7 KO THP-1 cells revealed that the release of IL-1β was not dependent on gasdermin E or ATG7. Collectively, our data indicate that during T. gondii Infection of human monocytes, caspase-8 functions in a novel gasdermin-independent mechanism controlling IL-1β release from viable cells. This study expands on the molecular pathways that promote IL-1β in human immune cells and provides evidence of a role for caspase-8 in the mechanism of IL-1β release during infection.
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Affiliation(s)
- William J Pandori
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, CA
| | - Stephanie Y Matsuno
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, CA
| | - Ji-Hun Shin
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, CA
| | - Samuel C Kim
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, CA
| | - Tiffany H Kao
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, CA
| | - Sharmila Mallya
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, CA
| | - Sarah N Batarseh
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, CA
| | - Melissa B Lodoen
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, CA
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24
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Wong MP, Juan EYW, Pahmeier F, Chelluri SS, Wang P, Castillo-Rojas B, Blanc SF, Biering SB, Vance RE, Harris E. The inflammasome pathway is activated by dengue virus non-structural protein 1 and is protective during dengue virus infection. PLoS Pathog 2024; 20:e1012167. [PMID: 38662771 DOI: 10.1371/journal.ppat.1012167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 05/07/2024] [Accepted: 04/01/2024] [Indexed: 05/07/2024] Open
Abstract
Dengue virus (DENV) is a medically important flavivirus causing an estimated 50-100 million dengue cases annually, some of whom progress to severe disease. DENV non-structural protein 1 (NS1) is secreted from infected cells and has been implicated as a major driver of dengue pathogenesis by inducing endothelial barrier dysfunction. However, less is known about how DENV NS1 interacts with immune cells and what role these interactions play. Here we report that DENV NS1 can trigger activation of inflammasomes, a family of cytosolic innate immune sensors that respond to infectious and noxious stimuli, in mouse and human macrophages. DENV NS1 induces the release of IL-1β in a caspase-1 dependent manner. Additionally, we find that DENV NS1-induced inflammasome activation is independent of the NLRP3, Pyrin, and AIM2 inflammasome pathways, but requires CD14. Intriguingly, DENV NS1-induced inflammasome activation does not induce pyroptosis and rapid cell death; instead, macrophages maintain cellular viability while releasing IL-1β. Lastly, we show that caspase-1/11-deficient, but not NLRP3-deficient, mice are more susceptible to lethal DENV infection. Together, these results indicate that the inflammasome pathway acts as a sensor of DENV NS1 and plays a protective role during infection.
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Affiliation(s)
- Marcus P Wong
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
- Infectious Diseases and Immunity Graduate Group, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Evan Y W Juan
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Felix Pahmeier
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
- Infectious Diseases and Immunity Graduate Group, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Sai S Chelluri
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Phoebe Wang
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Bryan Castillo-Rojas
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Sophie F Blanc
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Scott B Biering
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Russell E Vance
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology University of California, Berkeley, Berkeley, California, United States of America
- Howard Hughes Medical Institute, University of California, Berkeley, California, United States of America
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
- Infectious Diseases and Immunity Graduate Group, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology University of California, Berkeley, Berkeley, California, United States of America
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25
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Flis W, Socha MW. The Role of the NLRP3 Inflammasome in the Molecular and Biochemical Mechanisms of Cervical Ripening: A Comprehensive Review. Cells 2024; 13:600. [PMID: 38607039 PMCID: PMC11012148 DOI: 10.3390/cells13070600] [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: 02/23/2024] [Revised: 03/27/2024] [Accepted: 03/27/2024] [Indexed: 04/13/2024] Open
Abstract
The uterine cervix is one of the key factors involved in ensuring a proper track of gestation and labor. At the end of the gestational period, the cervix undergoes extensive changes, which can be summarized as a transformation from a non-favorable cervix to one that is soft and prone to dilation. During a process called cervical ripening, fundamental remodeling of the cervical extracellular matrix (ECM) occurs. The cervical ripening process is a derivative of many interlocking and mutually driving biochemical and molecular pathways under the strict control of mediators such as inflammatory cytokines, nitric oxide, prostaglandins, and reactive oxygen species. A thorough understanding of all these pathways and learning about possible triggering factors will allow us to develop new, better treatment algorithms and therapeutic goals that could protect women from both dysfunctional childbirth and premature birth. This review aims to present the possible role of the NLRP3 inflammasome in the cervical ripening process, emphasizing possible mechanisms of action and regulatory factors.
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Affiliation(s)
- Wojciech Flis
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland;
- Department of Obstetrics and Gynecology, St. Adalbert’s Hospital in Gdańsk, Copernicus Healthcare Entity, Jana Pawła II 50, 80-462 Gdańsk, Poland
| | - Maciej W. Socha
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland;
- Department of Obstetrics and Gynecology, St. Adalbert’s Hospital in Gdańsk, Copernicus Healthcare Entity, Jana Pawła II 50, 80-462 Gdańsk, Poland
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26
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Ou JY, Liu SH, Tang DK, Shi LZ, Yan LJ, Huang JY, Zou LF, Quan JY, You YT, Chen YY, Yu LZ, Lu ZB. Protective Effect of Silibinin on Lipopolysaccharide-Induced Endotoxemia by Inhibiting Caspase-11-Dependent Cell Pyroptosis. Chin J Integr Med 2024:10.1007/s11655-024-3656-1. [PMID: 38532152 DOI: 10.1007/s11655-024-3656-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2023] [Indexed: 03/28/2024]
Abstract
OBJECTIVE To explore the protective effect and the underlying mechanism of silibinin (SIB), one of the active compounds from Silybum marianum (L.) Gaertn in endotoxemia. METHODS Mouse peritoneal macrophage were isolated via intraperitoneally injection of BALB/c mice with thioglycolate medium. Cell viability was assessed using the cell counting kit-8, while cytotoxicity was determined through lactate dehydrogenase cytotoxicity assay. The protein expressions of interleukin (IL)-1 α, IL-1 β, and IL-18 were determined by enzyme-linked immunosorbent assay. Intracellular lipopolysaccharide (LPS) levels were measured by employing both the limulus amoebocyte lysate assay and flow cytometry. Additionally, proximity ligation assay was employed for the LPS and caspase-11 interaction. Mice were divided into 4 groups: the control, LPS, high-dose-SIB (100 mg/kg), and low-dose-SIB (100 mg/kg) groups (n=8). Zebrafish were divided into 4 groups: the control, LPS, high-dose-SIB (200 εmol/L), and low-dose-SIB (100 εmol/L) groups (n=30 for survival experiment and n=10 for gene expression analysis). The expression of caspase-11, gasdermin D (GSDMD), and N-GSDMD was determined by Western blot and the expressions of caspy2, gsdmeb, and IL-1 β were detected using quantitative real-time PCR. Histopathological observation was performed through hematoxylineosin staining, and protein levels in bronchoalveolar lavage fluid were quantified using the bicinchoninicacid protein assay. RESULTS SIB noticeably decreased caspase-11 and GSDMD-mediated pyroptosis and suppressed the secretion of IL-1 α, IL-1 β, and IL-18 induced by LPS (P<0.05). Moreover, SIB inhibited the translocation of LPS into the cytoplasm and the binding of caspase-11 and intracellular LPS (P<0.05). SIB also attenuated the expression of caspase-11 and N-terminal fragments of GSDMD, inhibited the relative cytokines, prolonged the survival time, and up-regulated the survival rate in the endotoxemia models (P<0.05). CONCLUSIONS SIB can inhibit pyroptosis in the LPS-mediated endotoxemia model, at least in part, by inhibiting the caspase-11-mediated cleavage of GSDMD. Additionally, SIB inhibits the interaction of LPS and caspase-11 and inhibits the LPS-mediated up-regulation of caspase-11 expression, which relieves caspase-11-dependent cell pyroptosis and consequently attenuates LPS-mediated lethality.
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Affiliation(s)
- Jin-Ying Ou
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Shan-Hong Liu
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Dong-Kai Tang
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Ling-Zhu Shi
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Li-Jun Yan
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Jing-Yan Huang
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Li-Fang Zou
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Jing-Yu Quan
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Yan-Ting You
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Yu-Yao Chen
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Lin-Zhong Yu
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China
| | - Zi-Bin Lu
- Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China.
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou, 510515, China.
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27
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Joon Lee D, Yeol Lee S, Yi YS. Maclurin inhibits caspase-11 non-canonical inflammasome in macrophages and ameliorates acute lethal sepsis in mice. Int Immunopharmacol 2024; 129:111615. [PMID: 38330799 DOI: 10.1016/j.intimp.2024.111615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/19/2024] [Accepted: 01/28/2024] [Indexed: 02/10/2024]
Abstract
Maclurin is a natural phenolic compound isolated from Morus alba(white mulberry) andGarcinia mangostana (purple mangosteen) and has been reported to regulate cancer progression, oxidative stress, and melanogenesis. The regulatory role of maclurin, however, has never been demonstrated. This study investigated in vitro and in vivo anti-inflammatory roles of maclurin and the underlying mechanism in caspase-11 non-canonical inflammasome-stimulated inflammatory responses in macrophages and an animal model of acute lethal sepsis. Maclurin protected J774A.1 macrophages from LPS-induced cytotoxicity and suppressed caspase-11 non-canonical inflammasome-stimulated pyroptosis. Maclurin decreased the secretion and mRNA expression of pro-inflammatory cytokines and inflammatory mediators, such as IL-1β, IL-18, TNF-α, IL-6, nitric oxide (NO), and inducible NO synthase (iNOS) in caspase-11 non-canonical inflammasome-stimulated J774A.1 macrophages. Mechanistic studies revealed that maclurin markedly suppressed the proteolytic activation of caspase-11 and gasdermin D (GSDMD) in caspase-11 non-canonical inflammasome-stimulated J774A.1 macrophages, while it did not inhibit caspase-11-mediated direct sensing of LPS. In vivo study revealed that maclurin ameliorated acute lethal sepsis in mice by increasing the survival rate and decreasing the serum levels of IL-1β and IL-18 without significant toxicity. In conclusion, this study suggests that maclurin is a novel anti-inflammatory agent in inflammatory responses and against acute lethal sepsis via the inhibition of the caspase-11 non-canonical inflammasome in macrophages, which justifies its potential as an anti-inflammatory therapeutic agent in traditional medicine.
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Affiliation(s)
- Dong Joon Lee
- Department of Life Sciences, Kyonggi University, Suwon 16227, Republic of Korea
| | - Sang Yeol Lee
- Department of Life Science, Gachon University, Seongnam 13120, Republic of Korea.
| | - Young-Su Yi
- Department of Life Sciences, Kyonggi University, Suwon 16227, Republic of Korea.
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28
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Huang L, Tan X, Xuan W, Luo Q, Xie L, Xi Y, Li R, Li L, Li F, Zhao M, Jiang Y, Wu X. Ficolin-A/2 Aggravated Severe Lung Injury through Neutrophil Extracellular Traps Mediated by Gasdermin D-Induced Pyroptosis. THE AMERICAN JOURNAL OF PATHOLOGY 2024:S0002-9440(24)00082-8. [PMID: 38442803 DOI: 10.1016/j.ajpath.2024.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/15/2024] [Accepted: 02/06/2024] [Indexed: 03/07/2024]
Abstract
Neutrophil extracellular traps (NETs) and pyroptosis are critical events in lung injury. This study investigated whether ficolin-A influences NET formation through pyroptosis to exacerbate lipopolysaccharide (LPS)-induced lung injury. The expression of ficolin-A/2, NETs, and pyroptosis-related molecules was investigated in animal and cell models. Knockout and knockdown (recombinant protein) methods were used to elucidate regulatory mechanisms. The Pearson correlation coefficient was used to analyze the correlation between ficolins and pyroptosis- and NET-related markers in clinical samples. In this study, ficolin-2 (similar to ficolin-A) showed significant overexpression in patients with acute respiratory distress syndrome. In vivo, knockout of ficolin-A, but not ficolin-B, attenuated lung inflammation and inhibited NET formation in the LPS-induced mouse model. DNase I further alleviated lung inflammation and NET formation in ficolin-A knockout mice. In vitro, neutrophils derived from Fcna-/- mice showed less pyroptosis and necroptosis than those from the control group after LPS stimulation. Additionally, gasdermin D knockdown or Nod-like receptor protein 3 inhibitor reduced NET formation. Addition of recombinant ficolin-2 protein to human peripheral blood neutrophils promoted NET formation and pyroptosis after LPS stimulation, whereas ficolin-2 knockdown had the opposite effect. Acute respiratory distress syndrome patients showed increased levels of pyroptosis- and NET-related markers, which were correlated positively with ficolin-2 levels. In conclusion, these results suggested that ficolin-A/2 exacerbated NET formation and LPS-induced lung injury via gasdermin D-mediated pyroptosis.
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Affiliation(s)
- Li Huang
- Department of Pediatrics, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Henan, China; Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Henan, China
| | - Xiaowu Tan
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Weixia Xuan
- Department of Respiratory and Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Qing Luo
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Li Xie
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Yunzhu Xi
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Rong Li
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Li Li
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Feifan Li
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Meiyun Zhao
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Yongliang Jiang
- Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Henan, China.
| | - Xu Wu
- Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Henan, China; Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China.
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29
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Wang J, Du M, Meng L, He S, Zhu Y, Yang Y, Ren X, Huang Y, Sun S, Dong R, Zheng S, Chen G. NLRP3 inflammasome activation promotes liver inflammation and fibrosis in experimental biliary atresia. Dig Liver Dis 2024; 56:458-467. [PMID: 37635054 DOI: 10.1016/j.dld.2023.08.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 07/06/2023] [Accepted: 08/03/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND Biliary atresia (BA) is characterized by a progressive fibroinflammatory cholangiopathy in early infants with unknown etiology. Although innate immune disorder is involved in its mechanism, role of NLRP3 inflammasome in BA remains largely undefined. AIM To explore the role of NLRP3 inflammasome in BA. METHODS The expressions of NLRP3 inflammasome-related genes were determined in BA patients. Role of NLRP3 inflammasome was evaluated using MCC950 in experimental BA. Furthermore, gadolinium chloride, a macrophage scavenger, was applied to validate the inflammasome's cellular localization. Finally, the effects of NLRP3 inflammasome activation on liver fibrosis were explored in vivo and vitro in experimental BA. RESULTS The components of NLRP3 inflammasome were up-regulated in BA patients. Inflammasome-related genes showed positively correlated with liver inflammation and fibrosis in BA patients. In experimental BA, inflammasome-related genes were up-regulated, and their expressions were inhibited by MCC950, which promoted mice growth, protected liver function, alleviated obstructive jaundice, inhibited liver inflammation, and reduced serum IL-1β level. NLRP3 inflammasome was expressed in macrophages, and macrophage elimination exerted the same protective roles as MCC950 did in BA. Additionally, NLRP3 inflammasome activation promoted liver fibrosis in experimental BA. CONCLUSIONS NLRP3 inflammasome activation in macrophages promoted liver inflammation and fibrosis in experimental BA.
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Affiliation(s)
- Junfeng Wang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China
| | - Min Du
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China; Department of Pediatric Gastroenterology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610091, PR China
| | - Lingdu Meng
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China
| | - Shiwei He
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China
| | - Ye Zhu
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China
| | - Yifan Yang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China
| | - Xue Ren
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China
| | - Yanlei Huang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China
| | - Song Sun
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China
| | - Rui Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China
| | - Shan Zheng
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China.
| | - Gong Chen
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, PR China.
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30
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Lai J, Liang J, Chen K, Guan B, Chen Z, Chen L, Fan J, Zhang Y, Li Q, Su J, Chen Q, Lin J. Carrimycin ameliorates lipopolysaccharide and cecal ligation and puncture-induced sepsis in mice. Chin J Nat Med 2024; 22:235-248. [PMID: 38553191 DOI: 10.1016/s1875-5364(24)60600-x] [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: 07/14/2023] [Indexed: 04/02/2024]
Abstract
Carrimycin (CA), sanctioned by China's National Medical Products Administration (NMPA) in 2019 for treating acute bronchitis and sinusitis, has recently been observed to exhibit multifaceted biological activities, encompassing anti-inflammatory, antiviral, and anti-tumor properties. Despite these applications, its efficacy in sepsis treatment remains unexplored. This study introduces a novel function of CA, demonstrating its capacity to mitigate sepsis induced by lipopolysaccharide (LPS) and cecal ligation and puncture (CLP) in mice models. Our research employed in vitro assays, real-time quantitative polymerase chain reaction (RT-qPCR), and RNA-seq analysis to establish that CA significantly reduces the levels of pro-inflammatory cytokines, namely tumor necrosis factor-alpha (TNF-α), interleukin 1 beta (IL-1β), and interleukin 6 (IL-6), in response to LPS stimulation. Additionally, Western blotting and immunofluorescence assays revealed that CA impedes Nuclear Factor Kappa B (NF-κB) activation in LPS-stimulated RAW264.7 cells. Complementing these findings, in vivo experiments demonstrated that CA effectively alleviates LPS- and CLP-triggered organ inflammation in C57BL/6 mice. Further insights were gained through 16S sequencing, highlighting CA's pivotal role in enhancing gut microbiota diversity and modulating metabolic pathways, particularly by augmenting the production of short-chain fatty acids in mice subjected to CLP. Notably, a comparative analysis revealed that CA's anti-inflammatory efficacy surpasses that of equivalent doses of aspirin (ASP) and TIENAM. Collectively, these findings suggest that CA exhibits significant therapeutic potential in sepsis treatment. This discovery provides a foundational theoretical basis for the clinical application of CA in sepsis management.
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Affiliation(s)
- Junzhong Lai
- The Cancer Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Jiadi Liang
- The Cancer Center, Fujian Medical University Union Hospital, Fuzhou 350001, China; Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China
| | - Kunsen Chen
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China
| | - Biyun Guan
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China
| | - Zhirong Chen
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China
| | - Linqin Chen
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China
| | - Jiqiang Fan
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China
| | - Yong Zhang
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China
| | - Qiumei Li
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China
| | - Jingqian Su
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China
| | - Qi Chen
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University, Fuzhou 350117, China.
| | - Jizhen Lin
- The Cancer Center, Fujian Medical University Union Hospital, Fuzhou 350001, China; The Department of Otolaryngology, Head & Neck Surgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
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31
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He X, Wedn A, Wang J, Gu Y, Liu H, Zhang J, Lin Z, Zhou R, Pang X, Cui Y. IUPHAR ECR review: The cGAS-STING pathway: Novel functions beyond innate immune and emerging therapeutic opportunities. Pharmacol Res 2024; 201:107063. [PMID: 38216006 DOI: 10.1016/j.phrs.2024.107063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/26/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
Stimulator of interferon genes (STING) is a crucial innate immune sensor responsible for distinguishing pathogens and cytosolic DNA, mediating innate immune signaling pathways to defend the host. Recent studies have revealed additional regulatory functions of STING beyond its innate immune-related activities, including the regulation of cellular metabolism, DNA repair, cellular senescence, autophagy and various cell deaths. These findings highlight the broader implications of STING in cellular physiology beyond its role in innate immunity. Currently, approximately 10 STING agonists have entered the clinical stage. Unlike inhibitors, which have a maximum inhibition limit, agonists have the potential for infinite amplification. STING signaling is a complex process that requires precise regulation of STING to ensure balanced immune responses and prevent detrimental autoinflammation. Recent research on the structural mechanism of STING autoinhibition and its negative regulation by adaptor protein complex 1 (AP-1) provides valuable insights into its different effects under physiological and pathological conditions, offering a new perspective for developing immune regulatory drugs. Herein, we present a comprehensive overview of the regulatory functions and molecular mechanisms of STING beyond innate immune regulation, along with updated details of its structural mechanisms. We discuss the implications of these complex regulations in various diseases, emphasizing the importance and feasibility of targeting the immunity-dependent or immunity-independent functions of STING. Moreover, we highlight the current trend in drug development and key points for clinical research, basic research, and translational research related to STING.
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Affiliation(s)
- Xu He
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China
| | - Abdalla Wedn
- School of Medicine, University of Pittsburgh, 5051 Centre Avenue, Pittsburgh, PA, USA
| | - Jian Wang
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Immunology and Biotherapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Yanlun Gu
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, China
| | - Hongjin Liu
- Department of General Surgery, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China
| | - Juqi Zhang
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China
| | - Zhiqiang Lin
- Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing 100191, China
| | - Renpeng Zhou
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Anhui 230601, China; Department of Orthopedics and Rehabilitation, Yale University School of Medicine, New Haven CT06519, USA.
| | - Xiaocong Pang
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China.
| | - Yimin Cui
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China.
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32
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Alves JLDB, Costa PCTD, Sales LCSD, Silva Luis CC, Bezerra TPT, Souza MLA, Costa BA, de Souza EL. Shedding light on the impacts of Spirulina platensis on gut microbiota and related health benefits. Crit Rev Food Sci Nutr 2024:1-14. [PMID: 38420934 DOI: 10.1080/10408398.2024.2323112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Spirulina (S.) platensis is a blue-green algae with reported nutritional and health-promoting properties, such as immunomodulating, antioxidant, cholesterol-lowering properties, and beneficial effects on inflammatory diseases. Spirulina platensis can improve the function and composition of the gut microbiota and exert systemic beneficial effects. Gut dysbiosis is characterized by an imbalance in the composition and function of gut microbiota and is associated with several diseases. Some dietary bioactive compounds can restore the composition, diversity, and function of the gut microbiota and improve health-related parameters. This review proposes to gather relevant information on the effects of S. platensis supplementation on the modulation of the function and composition of gut microbiota and local and systemic measures related to gut health, such as inflammation, oxidative stress, and glucose and lipid metabolism. The body of evidence conducted with animals and clinical studies shows that S. platensis supplementation increased gut microbiota diversity and improved gut microbiota composition, as reported by a decrease in the Firmicutes/Bacteroides ratio, increase in the relative abundance of Prevotella and Lactobacillaceae, increase in short-chain fatty acid production and decrease of gut permeability. Improvements in gut microbiota have been associated with host health benefits such as anti-obesity, anti-diabetic, anti-hypertensive, anti-lipemic, anti-inflammatory, and antioxidant effects.
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Affiliation(s)
- José Luiz de Brito Alves
- Department of Nutrition, Health Sciences Center, Federal University of Paraíba, João Pessoa, Paraiba, 58051-900, Brazil
| | - Paulo César Trindade da Costa
- Department of Nutrition, Health Sciences Center, Federal University of Paraíba, João Pessoa, Paraiba, 58051-900, Brazil
| | | | - Cristiane Cosmo Silva Luis
- Department of Nutrition, Health Sciences Center, Federal University of Paraíba, João Pessoa, Paraiba, 58051-900, Brazil
| | | | - Maria Luiza Alves Souza
- Department of Nutrition, Health Sciences Center, Federal University of Paraíba, João Pessoa, Paraiba, 58051-900, Brazil
| | - Bagnólia Araújo Costa
- Pharmaceutical Sciences Department, Health Sciences Center, Federal University of Paraiba, João Pessoa, Paraiba, Brazil
| | - Evandro Leite de Souza
- Department of Nutrition, Health Sciences Center, Federal University of Paraíba, João Pessoa, Paraiba, 58051-900, Brazil
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33
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Li W, Liu Q, Qian Y, Wang C, Kong C, Sun L, Sun L, Liu H, Zhang Y, Jiang D, Jiang C, Wang S, Xia P. Adipose triglyceride lipase suppresses noncanonical inflammasome by hydrolyzing LPS. Nat Chem Biol 2024:10.1038/s41589-024-01569-6. [PMID: 38413746 DOI: 10.1038/s41589-024-01569-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 02/04/2024] [Indexed: 02/29/2024]
Abstract
Intracellular recognition of lipopolysaccharide (LPS) by mouse caspase-11 or human caspase-4 is a vital event for the activation of the noncanonical inflammasome. Whether negative regulators are involved in intracellular LPS sensing is still elusive. Here we show that adipose triglyceride lipase (ATGL) is a negative regulator of the noncanonical inflammasome. Through screening for genes participating in the noncanonical inflammasome, ATGL is identified as a negative player for intracellular LPS signaling. ATGL binds LPS and catalyzes the removal of the acylated side chains that contain ester bonds. LPS with under-acylated side chains no longer activates the inflammatory caspases. Cells with ATGL deficiency exhibit enhanced immune responses when encountering intracellular LPS, including an elevated secretion of interleukin-1β, decreased cell viability and increased cell cytotoxicity. Moreover, ATGL-deficient mice show exacerbated responses to endotoxin challenges. Our results uncover that ATGL degrades cytosolic LPS to suppress noncanonical inflammasome activation.
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Affiliation(s)
- Weitao Li
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, Beijing, China
| | - Qiannv Liu
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, Beijing, China
| | - Yan Qian
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, Beijing, China
| | - Chunlei Wang
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, Beijing, China
| | - Chun Kong
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, Beijing, China
| | - Liangliang Sun
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, Beijing, China
| | - Li Sun
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China
| | - Hongwei Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China
| | - Yan Zhang
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, Beijing, China
| | - Dong Jiang
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Beijing, China
| | - Changtao Jiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Third Hospital, Peking University, Beijing, China
- Center for Obesity and Metabolic Disease Research, School of Basic Medical Sciences, Peking University, Beijing, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Shuo Wang
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Pengyan Xia
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China.
- NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China.
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, Beijing, China.
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34
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Ha J, Kim M, Park JS, Lee Y, Lee JY, Shin JC, Seo D, Park SS, You J, Jung SM, Kim HY, Mizuno S, Takahashi S, Kim SJ, Park SH. SERTAD1 initiates NLRP3-mediated inflammasome activation through restricting NLRP3 polyubiquitination. Cell Rep 2024; 43:113752. [PMID: 38341852 DOI: 10.1016/j.celrep.2024.113752] [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: 08/07/2023] [Revised: 01/03/2024] [Accepted: 01/23/2024] [Indexed: 02/13/2024] Open
Abstract
We here demonstrate that SERTAD1 is an adaptor protein responsible for the regulation of lysine 63 (K63)-linked NLRP3 polyubiquitination by the Cullin1 E3 ubiquitin ligase upon inflammasome activation. SERTAD1 specifically binds to NLRP3 but not to other inflammasome sensors. This endogenous interaction increases after inflammasome activation, interfering with the interaction between NLRP3 and Cullin1. Interleukin (IL)-1β and IL-18 secretion, as well as the cleavage of gasdermin D, are decreased in SERTAD1 knockout bone-marrow-derived macrophages, together with reduced formation of the NLRP3 inflammasome complex. Additionally, SERTAD1-deficient mice show attenuated severity of monosodium-uric-acid-induced peritonitis and experimental autoimmune encephalomyelitis. Analysis of public datasets indicates that expression of SERTAD1 mRNA is significantly increased in the patients of autoimmune diseases. Thus, our findings uncover a function of SERTAD1 that specifically reduces Cullin1-mediated NLRP3 polyubiquitination via direct binding to NLRP3, eventually acting as a crucial factor to regulate the initiation of NLRP3-mediated inflammasome activation.
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Affiliation(s)
- Jihoon Ha
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Minbeom Kim
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jin Seok Park
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yerin Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jae Young Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jin-Cheol Shin
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dongyeob Seo
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seong Shil Park
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jiyeon You
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Su Myung Jung
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hye Young Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Republic of Korea; SRC Center for Immune Research on Non-lymphoid Organs, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seiya Mizuno
- Laboratory Animal Resource Center, Transborder Medical Research Center, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8578, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center, Transborder Medical Research Center, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8578, Japan
| | - Seong-Jin Kim
- GILO Institute, GILO Foundation, Seoul 06668, Republic of Korea
| | - Seok Hee Park
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; SRC Center for Immune Research on Non-lymphoid Organs, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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35
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Han JH, Karki R, Malireddi RKS, Mall R, Sarkar R, Sharma BR, Klein J, Berns H, Pisharath H, Pruett-Miller SM, Bae SJ, Kanneganti TD. NINJ1 mediates inflammatory cell death, PANoptosis, and lethality during infection conditions and heat stress. Nat Commun 2024; 15:1739. [PMID: 38409108 PMCID: PMC10897308 DOI: 10.1038/s41467-024-45466-x] [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: 05/15/2023] [Accepted: 01/25/2024] [Indexed: 02/28/2024] Open
Abstract
Innate immunity provides the first line of defense through multiple mechanisms, including pyrogen production and cell death. While elevated body temperature during infection is beneficial to clear pathogens, heat stress (HS) can lead to inflammation and pathology. Links between pathogen exposure, HS, cytokine release, and inflammation have been observed, but fundamental innate immune mechanisms driving pathology during pathogen exposure and HS remain unclear. Here, we use multiple genetic approaches to elucidate innate immune pathways in infection or LPS and HS models. Our results show that bacteria and LPS robustly increase inflammatory cell death during HS that is dependent on caspase-1, caspase-11, caspase-8, and RIPK3 through the PANoptosis pathway. Caspase-7 also contributes to PANoptosis in this context. Furthermore, NINJ1 is an important executioner of this cell death to release inflammatory molecules, independent of other pore-forming executioner proteins, gasdermin D, gasdermin E, and MLKL. In an in vivo HS model, mortality is reduced by deleting NINJ1 and fully rescued by deleting key PANoptosis molecules. Our findings suggest that therapeutic strategies blocking NINJ1 or its upstream regulators to prevent PANoptosis may reduce the release of inflammatory mediators and benefit patients.
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Affiliation(s)
- Joo-Hui Han
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Woosuk University, Wanju, 55338, Republic of Korea
| | - Rajendra Karki
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - R K Subbarao Malireddi
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Raghvendra Mall
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Biotechnology Research Center, Technology Innovation Institute, Abu Dhabi, P.O. Box 9639, United Arab Emirates
| | - Roman Sarkar
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Bhesh Raj Sharma
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jonathon Klein
- Center for Advanced Genome Engineering, St Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Harmut Berns
- Center for Advanced Genome Engineering, St Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Harshan Pisharath
- Animal Resources Center, St Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Shondra M Pruett-Miller
- Center for Advanced Genome Engineering, St Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Sung-Jin Bae
- Department of Molecular Biology and Immunology, College of Medicine, Kosin University, Busan, 49267, Republic of Korea
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36
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Zhu X, Zhang C, Feng S, He R, Zhang S. Intestinal microbiota regulates the gut-thyroid axis: the new dawn of improving Hashimoto thyroiditis. Clin Exp Med 2024; 24:39. [PMID: 38386169 PMCID: PMC10884059 DOI: 10.1007/s10238-024-01304-4] [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: 12/25/2023] [Accepted: 01/24/2024] [Indexed: 02/23/2024]
Abstract
Intestinal microbiota plays an indispensable role in the host's innate immune system, which may be related to the occurrence of many autoimmune diseases. Hashimoto thyroiditis (HT) is one of the most common autoimmune diseases, and there is plenty of evidence indicating that HT may be related to genetics and environmental triggers, but the specific mechanism has not been proven clearly. Significantly, the composition and abundance of intestinal microbiota in patients with HT have an obvious difference. This phenomenon led us to think about whether intestinal microbiota can affect the progress of HT through some mechanisms. By summarizing the potential mechanism of intestinal microflora in regulating Hashimoto thyroiditis, this article explores the possibility of improving HT by regulating intestinal microbiota and summarizes relevant biomarkers as therapeutic targets, which provide new ideas for the clinical diagnosis and treatment of Hashimoto thyroiditis.
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Affiliation(s)
- Xiaxin Zhu
- Zhejiang Chinese Medical University, Hangzhou, 310053, People's Republic of China
| | - Chi Zhang
- Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310018, People's Republic of China
| | - Shuyan Feng
- Zhejiang Chinese Medical University, Hangzhou, 310053, People's Republic of China
| | - Ruonan He
- Zhejiang Chinese Medical University, Hangzhou, 310053, People's Republic of China
| | - Shuo Zhang
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), No. 318 Chaowang Road, Hangzhou, 310005, Zhejiang, People's Republic of China.
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Iske J, El Fatimy R, Nian Y, Ghouzlani A, Eskandari SK, Cetina Biefer HR, Vasudevan A, Elkhal A. NAD + prevents septic shock-induced death by non-canonical inflammasome blockade and IL-10 cytokine production in macrophages. eLife 2024; 12:RP88686. [PMID: 38372712 PMCID: PMC10942599 DOI: 10.7554/elife.88686] [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] [Indexed: 02/20/2024] Open
Abstract
Septic shock is characterized by an excessive inflammatory response depicted in a cytokine storm that results from invasive bacterial, fungi, protozoa, and viral infections. Non-canonical inflammasome activation is crucial in the development of septic shock promoting pyroptosis and proinflammatory cytokine production via caspase-11 and gasdermin D (GSDMD). Here, we show that NAD+ treatment protected mice toward bacterial and lipopolysaccharide (LPS)-induced endotoxic shock by blocking the non-canonical inflammasome specifically. NAD+ administration impeded systemic IL-1β and IL-18 production and GSDMD-mediated pyroptosis of macrophages via the IFN-β/STAT-1 signaling machinery. More importantly, NAD+ administration not only improved casp-11 KO (knockout) survival but rendered wild type (WT) mice completely resistant to septic shock via the IL-10 signaling pathway that was independent from the non-canonical inflammasome. Here, we delineated a two-sided effect of NAD+ blocking septic shock through a specific inhibition of the non-canonical inflammasome and promoting immune homeostasis via IL-10, underscoring its unique therapeutic potential.
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Affiliation(s)
- Jasper Iske
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical SchoolBostonUnited States
- Department of Cardiothoracic and Vascular Surgery, Germany Heart Center BerlinBerlinGermany
| | - Rachid El Fatimy
- Department of Neurology, Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States
- Institute of Biological Sciences (ISSB-P), Mohammed VI Polytechnic UniversityBenguerirMorocco
| | - Yeqi Nian
- Institute of Transplant Medicine, Tianjin First Central Hospital, Nankai UniversityTianjinChina
| | - Amina Ghouzlani
- NAD Immunology Laboratory, Huntington Medical Research InstitutesPasadenaUnited States
| | - Siawosh K Eskandari
- Department of Internal Medicine, University of GroningenGroningenNetherlands
| | - Hector Rodriguez Cetina Biefer
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical SchoolBostonUnited States
- Department of Cardiac Surgery, Stadtspital Zurich TriemliZurichSwitzerland
| | - Anju Vasudevan
- Department of Neurosciences, Angiogenesis and Brain Development Laboratory, Huntington Medical Research InstitutesPasadenaUnited States
| | - Abdallah Elkhal
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical SchoolBostonUnited States
- NAD Immunology Laboratory, Huntington Medical Research InstitutesPasadenaUnited States
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38
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Yi YS. MicroRNA-mediated epigenetic regulation of inflammasomes in inflammatory responses and immunopathologies. Semin Cell Dev Biol 2024; 154:227-238. [PMID: 36437174 DOI: 10.1016/j.semcdb.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 11/27/2022]
Abstract
Inflammation represents the first-line defense mechanism of the host against pathogens and cellular stress. One of the most critical inflammatory responses is characterized by the activation of inflammasomes, intracellular multiprotein complexes that induce inflammatory signaling pathways in response to various pathogen-associated molecular patterns or danger-associated molecular patterns under physiological and pathological conditions. Inflammasomes are tightly regulated in normal cells, and dysregulation of these complexes is observed in various pathological conditions, especially inflammatory diseases and cancers. Epigenetic regulation has been suggested as a key mechanism in modulating inflammasome activity, and microRNAs (miRNAs) have been implicated in the post-transcriptional regulation of inflammasomes. Therefore, miRNA-mediated epigenetic regulation of inflammasomes in pathological conditions has received considerable attention, and current strategies for targeting inflammasomes have been shown to be effective in the treatment of diseases associated with inflammasome activation. This review summarizes recent studies suggesting the roles of miRNAs in the epigenetic control of inflammasomes and highlights the potential of miRNAs as a therapeutic tool for treating human diseases.
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Affiliation(s)
- Young-Su Yi
- Department of Life Sciences, Kyonggi University, Suwon 16227, South Korea.
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39
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Yi YS. Roles of the Caspase-11 Non-Canonical Inflammasome in Rheumatic Diseases. Int J Mol Sci 2024; 25:2091. [PMID: 38396768 PMCID: PMC10888639 DOI: 10.3390/ijms25042091] [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: 01/13/2024] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Inflammasomes are intracellular multiprotein complexes that activate inflammatory signaling pathways. Inflammasomes comprise two major classes: canonical inflammasomes, which were discovered first and are activated in response to a variety of pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs), and non-canonical inflammasomes, which were discovered recently and are only activated in response to intracellular lipopolysaccharide (LPS). Although a larger number of studies have successfully demonstrated that canonical inflammasomes, particularly the NLRP3 inflammasome, play roles in various rheumatic diseases, including rheumatoid arthritis (RA), infectious arthritis (IR), gouty arthritis (GA), osteoarthritis (OA), systemic lupus erythematosus (SLE), psoriatic arthritis (PA), ankylosing spondylitis (AS), and Sjögren's syndrome (SjS), the regulatory roles of non-canonical inflammasomes, such as mouse caspase-11 and human caspase-4 non-canonical inflammasomes, in these diseases are still largely unknown. Interestingly, an increasing number of studies have reported possible roles for non-canonical inflammasomes in the pathogenesis of various mouse models of rheumatic disease. This review comprehensively summarizes and discusses recent emerging studies demonstrating the regulatory roles of non-canonical inflammasomes, particularly focusing on the caspase-11 non-canonical inflammasome, in the pathogenesis and progression of various types of rheumatic diseases and provides new insights into strategies for developing potential therapeutics to prevent and treat rheumatic diseases as well as associated diseases by targeting non-canonical inflammasomes.
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Affiliation(s)
- Young-Su Yi
- Department of Life Sciences, Kyonggi University, Suwon 16227, Republic of Korea
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Basak B, Akashi-Takamura S. IRF3 function and immunological gaps in sepsis. Front Immunol 2024; 15:1336813. [PMID: 38375470 PMCID: PMC10874998 DOI: 10.3389/fimmu.2024.1336813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 01/22/2024] [Indexed: 02/21/2024] Open
Abstract
Lipopolysaccharide (LPS) induces potent cell activation via Toll-like receptor 4/myeloid differentiation protein 2 (TLR4/MD-2), often leading to septic death and cytokine storm. TLR4 signaling is diverted to the classical acute innate immune, inflammation-driving pathway in conjunction with the classical NF-κB pivot of MyD88, leading to epigenetic linkage shifts in nuclear pro-inflammatory transcription and chromatin structure-function; in addition, TLR4 signaling to the TIR domain-containing adapter-induced IFN-β (TRIF) apparatus and to nuclear pivots that signal the association of interferons alpha and beta (IFN-α and IFN-β) with acute inflammation, often coupled with oxidants favor inhibition or resistance to tissue injury. Although the immune response to LPS, which causes sepsis, has been clarified in this manner, there are still many current gaps in sepsis immunology to reduce mortality. Recently, selective agonists and inhibitors of LPS signals have been reported, and there are scattered reports on LPS tolerance and control of sepsis development. In particular, IRF3 signaling has been reported to be involved not only in sepsis but also in increased pathogen clearance associated with changes in the gut microbiota. Here, we summarize the LPS recognition system, main findings related to the IRF3, and finally immunological gaps in sepsis.
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Affiliation(s)
- Bristy Basak
- Department of Microbiology and Immunology, School of Medicine, Aichi Medical University, Nagakute, Aichi, Japan
| | - Sachiko Akashi-Takamura
- Department of Microbiology and Immunology, School of Medicine, Aichi Medical University, Nagakute, Aichi, Japan
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Liu J, Yan P, Li Y, Yu J, Huang Y, Bai R, Liu M, Wang N, Liu L, Zhu J, Xiao J, Guo L, Liu G, Zhang F, Yang X, He B, Zeng J, Zeng X. Gut microbiota and serum metabolome reveal the mechanism by which TCM polysaccharides alleviate salpingitis in laying hens challenged by bacteria. Poult Sci 2024; 103:103288. [PMID: 38064885 PMCID: PMC10749910 DOI: 10.1016/j.psj.2023.103288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 12/29/2023] Open
Abstract
This paper aimed to evaluate the effect of 3 kinds of TCM polysaccharides instead of antibiotics in preventing salpingitis in laying hens. After feeding the laying hens with Lotus leaf polysaccharide, Poria polysaccharide, and Epimedium polysaccharide, mixed bacteria (E. coli and Staphylococcus aureus) were used to infect the oviduct to establish an inflammation model. Changes in antioxidant, serum immunity, anti-inflammatory, gut microbiota, and serum metabolites were evaluated. The results showed that the 3 TCM polysaccharides could increase the expression of antioxidant markers SOD, GSH, and CAT, and reduce the accumulation of MDA in the liver; the contents of IgA and IgM in serum were increased. Decreased the mRNA expression of TLR4, NFκB, TNF-α, IFN-γ, IL1β, IL6, and IL8, and increased the mRNA expression of anti-inflammatory factor IL5 in oviduct tissue. 16sRNA high-throughput sequencing revealed that the 3 TCM polysaccharides improved the intestinal flora disturbance caused by bacterial infection, increased the abundance of beneficial bacteria such as Bacteroides and Actinobacillus, and decreased the abundance of harmful bacteria such as Romboutsia, Turicibacter, and Streptococcus. Metabolomics showed that the 3 TCM polysaccharides could increase the content of metabolites such as 3-hydroxybutyric acid and isobutyl-L-carnitine, and these results could alleviate the further development of salpingitis. In conclusion, the present study has found that using TCM polysaccharides instead of antibiotics was a feasible way to prevent bacterial salpingitis in laying hens, which might make preventing this disease no longer an issue for breeding laying hens.
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Affiliation(s)
- Jiali Liu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Pupu Yan
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Yana Li
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Jie Yu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Yongxi Huang
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Ruonan Bai
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Man Liu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Ning Wang
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Lian Liu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Jun Zhu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Junhao Xiao
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Liwei Guo
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China.
| | - Guoping Liu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Fuxian Zhang
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Xiaolin Yang
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Bin He
- Institute of Animal Husbandry and Veterinary Medicine, Wuhan Academy of Agricultural Sciences, Wuhan, Hubei, China
| | - Jianguo Zeng
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - Xiaoqin Zeng
- The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, China
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42
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Chiarini A, Armato U, Gui L, Dal Prà I. "Other Than NLRP3" Inflammasomes: Multiple Roles in Brain Disease. Neuroscientist 2024; 30:23-48. [PMID: 35815856 DOI: 10.1177/10738584221106114] [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: 11/15/2022]
Abstract
Human neuroinflammatory and neurodegenerative diseases, whose prevalence keeps rising, are still unsolved pathobiological/therapeutical problems. Among others, recent etiology hypotheses stressed as their main driver a chronic neuroinflammation, which is mediated by innate immunity-related protein oligomers: the inflammasomes. A panoply of exogenous and/or endogenous harmful agents activates inflammasomes' assembly, signaling, and IL-1β/IL-18 production and neural cells' pyroptotic death. The underlying concept is that inflammasomes' chronic activation advances neurodegeneration while their short-lasting operation restores tissue homeostasis. Hence, from a therapeutic standpoint, it is crucial to understand inflammasomes' regulatory mechanisms. About this, a deluge of recent studies focused on the NLRP3 inflammasome with suggestions that its pharmacologic block would hinder neurodegeneration. Yet hitherto no evidence proves this view. Moreover, known inflammasomes are numerous, and the mechanisms regulating their expression and function may vary with the involved animal species and strains, as well as organs and cells, and the harmful factors triggered as a result. Therefore, while presently leaving out some little-studied inflammasomes, this review focuses on the "other than NLRP3" inflammasomes that participate in neuroinflammation's complex mechanisms: NLRP1, NLRP2, NLRC4, and AIM2. Although human-specific data about them are relatively scant, we stress that only a holistic view including several human brain inflammasomes and other potential pathogenetic drivers will lead to successful therapies for neuroinflammatory and neurodegenerative diseases.
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Affiliation(s)
- Anna Chiarini
- Human Histology and Embryology Section, Department of Surgery, Dentistry, Pediatrics, and Gynecology, University of Verona, Verona, Italy
| | - Ubaldo Armato
- Human Histology and Embryology Section, Department of Surgery, Dentistry, Pediatrics, and Gynecology, University of Verona, Verona, Italy
| | - Li Gui
- Department of Neurology, Southwest Hospital, Chongqing, China
| | - Ilaria Dal Prà
- Human Histology and Embryology Section, Department of Surgery, Dentistry, Pediatrics, and Gynecology, University of Verona, Verona, Italy
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Chen Q, Sun Y, Wang S, Xu J. New prospects of cancer therapy based on pyroptosis and pyroptosis inducers. Apoptosis 2024; 29:66-85. [PMID: 37943371 DOI: 10.1007/s10495-023-01906-5] [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] [Accepted: 10/15/2023] [Indexed: 11/10/2023]
Abstract
Pyroptosis is a gasdermin-mediated programmed cell death (PCD) pathway. It differs from apoptosis because of the secretion of inflammatory molecules. Pyroptosis is closely associated with various malignant tumors. Recent studies have demonstrated that pyroptosis can either inhibit or promote the development of malignant tumors, depending on the cell type (immune or cancer cells) and duration and severity of the process. This review summarizes the molecular mechanisms of pyroptosis, its relationship with malignancies, and focuses on current pyroptosis inducers and their significance in cancer treatment. The molecules involved in the pyroptosis signaling pathway could serve as therapeutic targets for the development of novel drugs for cancer therapy. In addition, we analyzed the potential of combining pyroptosis with conventional anticancer techniques as a promising strategy for cancer treatment.
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Affiliation(s)
- Qiaoyun Chen
- China Pharmaceutical University Nanjing Drum Tower Hospital, Nanjing, 210008, China
- Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yuxiang Sun
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225000, China
| | - Siliang Wang
- China Pharmaceutical University Nanjing Drum Tower Hospital, Nanjing, 210008, China.
- Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
| | - Jingyan Xu
- China Pharmaceutical University Nanjing Drum Tower Hospital, Nanjing, 210008, China.
- Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
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Shim DW, Eo JC, Kim S, Hwang I, Nam B, Shin JE, Han SH, Yu JW. Deficiency of circadian clock gene Bmal1 exacerbates noncanonical inflammasome-mediated pyroptosis and lethality via Rev-erbα-C/EBPβ-SAA1 axis. Exp Mol Med 2024; 56:370-382. [PMID: 38297162 PMCID: PMC10907614 DOI: 10.1038/s12276-024-01162-w] [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: 05/15/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 02/02/2024] Open
Abstract
Circadian arrhythmia has been linked to increased susceptibility to multiple inflammatory diseases, such as sepsis. However, it remains unclear how disruption of the circadian clock modulates molecular aspects of innate immune responses, including inflammasome signaling. Here, we examined the potential role of the circadian clock in inflammasome-mediated responses through myeloid-specific deletion of BMAL1, a master circadian clock regulator. Intriguingly, Bmal1 deficiency significantly enhanced pyroptosis of macrophages and lethality of mice under noncanonical inflammasome-activating conditions but did not alter canonical inflammasome responses. Transcriptome analysis of enriched peritoneal myeloid cells revealed that Bmal1 deficiency led to a marked reduction in Rev-erbα expression at steady state and a significant increase in serum amyloid A1 (SAA1) expression upon poly(I:C) stimulation. Notably, we found that the circadian regulator Rev-erbα is critical for poly(I:C)- or interferon (IFN)-β-induced SAA1 production, resulting in the circadian oscillation pattern of SAA1 expression in myeloid cells. Furthermore, exogenously applied SAA1 markedly increased noncanonical inflammasome-mediated pyroptosis of macrophages and lethality of mice. Intriguingly, our results revealed that type 1 IFN receptor signaling is needed for poly(I:C)- or IFN-β-induced SAA1 production. Downstream of the type 1 IFN receptor, Rev-erbα inhibited the IFN-β-induced association of C/EBPβ with the promoter region of Saa1, leading to the reduced transcription of Saa1 in macrophages. Bmal1-deficient macrophages exhibited enhanced binding of C/EBPβ to Saa1. Consistently, the blockade of Rev-erbα by SR8278 significantly increased poly(I:C)-stimulated SAA1 transcription and noncanonical inflammasome-mediated lethality in mice. Collectively, our data demonstrate a potent suppressive effect of the circadian clock BMAL1 on the noncanonical inflammasome response via the Rev-erbα-C/EBPβ-SAA1 axis.
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Affiliation(s)
- Do-Wan Shim
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jun-Cheol Eo
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Saeyoung Kim
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Inhwa Hwang
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - BoYoung Nam
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jae-Eun Shin
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Seung Hyeok Han
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Je-Wook Yu
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
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Wang F, Ye J, Zhu W, Ge R, Hu C, Qian Y, Li Y, Peng Z. Galectin-3 Mediates Endotoxin Internalization and Caspase-4/11 Activation in Tubular Epithelials and Macrophages During Sepsis and Sepsis-Associated Acute Kidney Injury. Inflammation 2024; 47:454-468. [PMID: 37979076 DOI: 10.1007/s10753-023-01928-w] [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: 09/02/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 11/19/2023]
Abstract
Besides being recognized by membrane receptor TLR4, lipopolysaccharide (LPS) can also be internalized into the cytosol and activate Caspase-4/11 pyroptotic pathways to further amplify inflammation in sepsis. The objective of this study was to investigate whether Galectin-3 (Gal3) could promote the uptake of LPS by governing RAGE or administering endocytosis, consequently activating Caspase 4/11 and mediating pyroptosis in sepsis-associated acute kidney injury (SA-AKI). By pinpointing Gal3, LPS, and EEA1 (endosome-marker) or LAMP1 (lysosome-marker) respectively, immunofluorescence discovered that Gal3 and LPS were mainly aggregated in early endosomes initially and translocated into lysosomes afterwards. In cells and animal models, Gal3 and the Caspase-4/11 pathways were simultaneously activated, and the overexpression of Gal3 could exacerbate pyroptosis, whereas inhibition of Gal3 or the knockdown of its expression could ameliorate pyroptosis, reduce the pathological changes of SA-AKI and improve the survival of the animals with SA-AKI. Silencing RAGE reduced pyroptosis in primary tubular epithelial cells (PTCs) activated by Gal3 and LPS but not in cells activated by Gal3 and outer membrane vesicles (with LPS inside), whereas pyroptosis in both was reduced by blockade of Gal3, indicating Gal3 promoted pyroptosis through both RAGE-dependent and RAGE-independent pathways. Our investigation further revealed a positive correlation between serum Gal3 and pyroptotic biomarkers IL-1 beta and IL-18 in patients with sepsis, and that serum Gal3 was an independent risk factor for mortality. Through our collective exploration, we unraveled the significant role of Gal3 in the internalization of LPS and the provocation of more intense pyroptosis, thus making it a vital pathogenic factor in SA-AKI and a possible therapeutic target. Gal3 enabled the internalization of endotoxin into endosomes and lysosomes via both RAGE-dependent (A) and RAGE-independent (B) pathways, leading to pyroptosis. The suppression of Gal3 curbed Caspase4/11 noncanonical inflammasomes and diminished sepsis and SA-AKI.
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Affiliation(s)
- Fengyun Wang
- Department of Critical Care Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Junwei Ye
- Department of Critical Care Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Department of Critical Care Medicine, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, China
| | - Weiwei Zhu
- Department of Critical Care Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ruiqi Ge
- Department of Critical Care Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Chang Hu
- Department of Critical Care Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yaoyao Qian
- Department of Critical Care Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yiming Li
- Clinical Research Center of Hubei Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
| | - Zhiyong Peng
- Department of Critical Care Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China.
- Clinical Research Center of Hubei Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
- Department of Critical Care Medicine, Center of Critical Care Nephrology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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46
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Gando S, Levi M, Toh CH. Trauma-induced innate immune activation and disseminated intravascular coagulation. J Thromb Haemost 2024; 22:337-351. [PMID: 37816463 DOI: 10.1016/j.jtha.2023.09.028] [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: 05/19/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/12/2023]
Abstract
Dysregulated innate immunity participates in the pathomechanisms of disseminated intravascular coagulation (DIC) in trauma-induced coagulopathy. Accidental and regulated cell deaths and neutrophil extracellular traps release damage-associated molecular patterns (DAMPs), such as histones, nuclear and mitochondrial DNA, and high-mobility group box 1, into circulation immediately after trauma. DAMP-induced inflammation activation releases tissue factor-bearing procoagulant extracellular vesicles through gasdermin D-mediated pore formation and plasma membrane rupture by regulated cell death. DAMPs also evoke systemic inflammation, platelet, coagulation activation, and impaired fibrinolysis associated with endothelial injury, leading to the dysfunction of anticoagulation systems, which are the main pathophysiological mechanisms of DIC. All these processes induce systemic thrombin generation in vivo, not restricted to the injury sites immediately after trauma. Thrombin generation at the site of injury stops bleeding and maintains homeostasis. However, DIC associated with endothelial injury generates massive thrombin, enhancing protease-activated, receptor-mediated bidirectional interplays between inflammation and coagulation, aggravating the diverse actions of thrombin and disturbing homeostasis. Insufficiently regulated thrombin causes disseminated microvascular thrombosis, resulting in tissue hypoxia due to reduced oxygen delivery, and mitochondrial dysfunction due to DAMPs causes tissue dysoxia. In addition, DAMP-induced calcium influx and overload, as well as neutrophil activation, play a role in endothelial cell injury. Tissue hypoxia and cytotoxicity result in multiple organ dysfunction in DIC after trauma. Controls against dysregulated innate immunity evoking systemic inflammation, thrombin generation, and cytotoxicity are key issues in improving the prognosis of DIC in trauma-induced coagulopathy.
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Affiliation(s)
- Satoshi Gando
- Department of Acute and Critical Care Medicine, Sapporo Higashi Tokushukai Hospital, Sapporo, Japan; Division of Acute and Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Hokkaido University Faculty of Medicine, Sapporo, Japan.
| | - Marcel Levi
- Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands; Department of Medicine, University College London Hospitals NHS Foundation Trust, and Cardio-Metabolic Program - NIHR UCLH/UCL BRC London, London, United Kingdom
| | - Cheng-Hock Toh
- Department of Clinical Infection, Microbiology and Immunology, University of Liverpool, Liverpool, United Kingdom; Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
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Fujii K, Yamakawa K, Takeda Y, Okuda N, Takasu A, Ono F. Understanding the pathophysiology of acute critical illness: translational lessons from zebrafish models. Intensive Care Med Exp 2024; 12:8. [PMID: 38291192 PMCID: PMC10828313 DOI: 10.1186/s40635-024-00595-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/10/2024] [Indexed: 02/01/2024] Open
Abstract
The models used to investigate the pathophysiological mechanisms of acute critical illness are not limited to mammalian species. The zebrafish (Danio rerio) is a popular model organism for studying diseases due to its transparency and rapid development. The genes and signaling pathways involved in acute critical illness appear highly conserved among zebrafish and humans. Forward genetics such as random mutagenesis by a chemical mutagen or reverse genetics methods represented by CRISPR/Cas9 allowed researchers to reveal multiple novel aspects of pathological processes in areas including infection, immunity, and regeneration. As a model of sepsis, transgenic zebrafish allowed the visualization of lipopolysaccharide (LPS)-induced vascular leakage in vivo and the demonstration of changes in the expression of cellular junction proteins. Other transgenic zebrafish visualizing the extravascular migration of neutrophils and macrophages have demonstrated a decrease in neutrophil numbers and an increased expression of an inflammatory gene, which replicates a phenomenon observed in humans in clinically encountered sepsis. The regenerative potential and the visibility of zebrafish organs also enabled clarification of important mechanisms in wound healing, angiogenesis, and neurogenesis. After spinal cord injury (SCI), a marker gene expressed in glial bridging was discovered. Furthermore, localized epithelial-to-mesenchymal transition (EMT) and molecular mechanisms leading to spinal cord repair were revealed. These translational studies using zebrafish show the potential of the model system for the treatment of acute critical illnesses such as sepsis, organ failure, and trauma.
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Affiliation(s)
- Kensuke Fujii
- Department of Emergency and Critical Care Medicine, Osaka Medical and Pharmaceutical University, 2-7 Daigakumachi, Takatsuki, Osaka, 569-8686, Japan
| | - Kazuma Yamakawa
- Department of Emergency and Critical Care Medicine, Osaka Medical and Pharmaceutical University, 2-7 Daigakumachi, Takatsuki, Osaka, 569-8686, Japan.
| | - Yuriko Takeda
- Department of Emergency and Critical Care Medicine, Osaka Medical and Pharmaceutical University, 2-7 Daigakumachi, Takatsuki, Osaka, 569-8686, Japan
| | - Natsuko Okuda
- Department of Physiology, Osaka Medical and Pharmaceutical University, 2-7 Daigakumachi, Takatsuki, Osaka, 569-8686, Japan
| | - Akira Takasu
- Department of Emergency and Critical Care Medicine, Osaka Medical and Pharmaceutical University, 2-7 Daigakumachi, Takatsuki, Osaka, 569-8686, Japan
| | - Fumihito Ono
- Department of Physiology, Osaka Medical and Pharmaceutical University, 2-7 Daigakumachi, Takatsuki, Osaka, 569-8686, Japan
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Newton K, Strasser A, Kayagaki N, Dixit VM. Cell death. Cell 2024; 187:235-256. [PMID: 38242081 DOI: 10.1016/j.cell.2023.11.044] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/18/2023] [Accepted: 11/30/2023] [Indexed: 01/21/2024]
Abstract
Cell death supports morphogenesis during development and homeostasis after birth by removing damaged or obsolete cells. It also curtails the spread of pathogens by eliminating infected cells. Cell death can be induced by the genetically programmed suicide mechanisms of apoptosis, necroptosis, and pyroptosis, or it can be a consequence of dysregulated metabolism, as in ferroptosis. Here, we review the signaling mechanisms underlying each cell-death pathway, discuss how impaired or excessive activation of the distinct cell-death processes can promote disease, and highlight existing and potential therapies for redressing imbalances in cell death in cancer and other diseases.
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Affiliation(s)
- Kim Newton
- Physiological Chemistry Department, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
| | - Andreas Strasser
- WEHI: Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Melbourne, VIC 3010, Australia.
| | - Nobuhiko Kayagaki
- Physiological Chemistry Department, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
| | - Vishva M Dixit
- Physiological Chemistry Department, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
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Akuma DC, Wodzanowski KA, Schwartz Wertman R, Exconde PM, Vázquez Marrero VR, Odunze CE, Grubaugh D, Shin S, Taabazuing C, Brodsky IE. Catalytic activity and autoprocessing of murine caspase-11 mediate noncanonical inflammasome assembly in response to cytosolic LPS. eLife 2024; 13:e83725. [PMID: 38231198 PMCID: PMC10794067 DOI: 10.7554/elife.83725] [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: 09/26/2022] [Accepted: 12/06/2023] [Indexed: 01/18/2024] Open
Abstract
Inflammatory caspases are cysteine protease zymogens whose activation following infection or cellular damage occurs within supramolecular organizing centers (SMOCs) known as inflammasomes. Inflammasomes recruit caspases to undergo proximity-induced autoprocessing into an enzymatically active form that cleaves downstream targets. Binding of bacterial LPS to its cytosolic sensor, caspase-11 (Casp11), promotes Casp11 aggregation within a high-molecular-weight complex known as the noncanonical inflammasome, where it is activated to cleave gasdermin D and induce pyroptosis. However, the cellular correlates of Casp11 oligomerization and whether Casp11 forms an LPS-induced SMOC within cells remain unknown. Expression of fluorescently labeled Casp11 in macrophages revealed that cytosolic LPS induced Casp11 speck formation. Unexpectedly, catalytic activity and autoprocessing were required for Casp11 to form LPS-induced specks in macrophages. Furthermore, both catalytic activity and autoprocessing were required for Casp11 speck formation in an ectopic expression system, and processing of Casp11 via ectopically expressed TEV protease was sufficient to induce Casp11 speck formation. These data reveal a previously undescribed role for Casp11 catalytic activity and autoprocessing in noncanonical inflammasome assembly, and shed new light on the molecular requirements for noncanonical inflammasome assembly in response to cytosolic LPS.
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Affiliation(s)
- Daniel C Akuma
- Department of Pathobiology, University of Pennsylvania School of Veterinary MedicinePhiladelphiaUnited States
| | - Kimberly A Wodzanowski
- Department of Microbiology, University of Pennsylvania Perelman School of MedicinePhiladelphiaUnited States
| | - Ronit Schwartz Wertman
- Department of Pathobiology, University of Pennsylvania School of Veterinary MedicinePhiladelphiaUnited States
| | - Patrick M Exconde
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of MedicinePhiladelphiaUnited States
| | - Víctor R Vázquez Marrero
- Department of Microbiology, University of Pennsylvania Perelman School of MedicinePhiladelphiaUnited States
| | | | - Daniel Grubaugh
- Department of Pathobiology, University of Pennsylvania School of Veterinary MedicinePhiladelphiaUnited States
| | - Sunny Shin
- Department of Microbiology, University of Pennsylvania Perelman School of MedicinePhiladelphiaUnited States
| | - Cornelius Taabazuing
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of MedicinePhiladelphiaUnited States
| | - Igor E Brodsky
- Department of Pathobiology, University of Pennsylvania School of Veterinary MedicinePhiladelphiaUnited States
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50
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Wang Z, You X, Zhang Y, Liu Q, Yang D. Poly(I:C) induces anti-inflammatory response against secondary LPS challenge in zebrafish larvae. FISH & SHELLFISH IMMUNOLOGY 2024; 144:109285. [PMID: 38092095 DOI: 10.1016/j.fsi.2023.109285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/23/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
Poly(I:C) is known as an agonist of the TLR3 receptor which could prime inflammation and elicit the host immune response, which is widely applied as adjuvant or antivirus treatment. However, the negative effects of poly(I:C) on regulating immune response to protect the host from inflammatory diseases remain largely unknown. Here, we establish an in vivo model to pre-treat zebrafish larvae with poly(I:C) at 2 dpf, then challenge them with LPS at 6 dpf, and find that poly(I:C) training could significantly alleviate the LPS challenge-induced septic shock and inflammatory phenotypes. Moreover, the poly(I:C)-trained larvae exhibit decreased number of macrophages, but not neutrophils, after secondary LPS challenge. Furthermore, training the larvae with poly(I:C) could elevate the transcripts of mTOR signaling and heighten the H3K4me3-mediated epigenetic modifications. And interestingly, we find that inhibiting the H3K4me3 modification, rather than mTOR signaling, could recover the number of macrophages in poly(I:C)-trained larvae, which is consistent with the observations of inflammatory phenotypes. Taken together, these results suggest that poly(I:C) training could induce epigenetic rewiring to mediate the anti-inflammatory response against secondary LPS challenge-induced septic shock through decreasing macrophages' number in vivo, which might expand our understanding of poly(I:C) in regulating fish immune response.
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Affiliation(s)
- Zhuang Wang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai, 200237, China
| | - Xinwei You
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai, 200237, China
| | - Yuanxing Zhang
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai, 200237, China
| | - Qin Liu
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai, 200237, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai, 200237, China
| | - Dahai Yang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai, 200237, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai, 200237, China.
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