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Zhou Z, Mai Y, Zhang G, Wang Y, Sun P, Jing Z, Li Z, Xu Y, Han B, Liu J. Emerging role of immunogenic cell death in cancer immunotherapy: Advancing next-generation CAR-T cell immunotherapy by combination. Cancer Lett 2024; 598:217079. [PMID: 38936505 DOI: 10.1016/j.canlet.2024.217079] [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: 04/25/2024] [Revised: 06/11/2024] [Accepted: 06/18/2024] [Indexed: 06/29/2024]
Abstract
Immunogenic cell death (ICD) is a stress-driven form of regulated cell death (RCD) in which dying tumor cells' specific signaling pathways are activated to release damage-associated molecular patterns (DAMPs), leading to the robust anti-tumor immune response as well as a reversal of the tumor immune microenvironment from "cold" to "hot". Chimeric antigen receptor (CAR)-T cell therapy, as a landmark in anti-tumor immunotherapy, plays a formidable role in hematologic malignancies but falls short in solid tumors. The Gordian knot of CAR-T cells for solid tumors includes but is not limited to, tumor antigen heterogeneity or absence, physical and immune barriers of tumors. The combination of ICD induction therapy and CAR-T cell immunotherapy is expected to promote the intensive use of CAR-T cell in solid tumors. In this review, we summarize the characteristics of ICD, stress-responsive mechanism, and the synergistic effect of various ICD-based therapies with CAR-T cells to effectively improve anti-tumor capacity.
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Affiliation(s)
- Zhaokai Zhou
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yumiao Mai
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Ge Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Henan Province Key Laboratory of Cardiac Injury and Repair, Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, Henan, 450052, China
| | - Yingjie Wang
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Pan Sun
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Zhaohe Jing
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Zhengrui Li
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yudi Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jian Liu
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
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Saha I, Chawla AS, Oliveira APBN, Elfers EE, Warrick K, Meibers HE, Jain VG, Hagan T, Katz JD, Pasare C. Alloreactive memory CD4 T cells promote transplant rejection by engaging DCs to induce innate inflammation and CD8 T cell priming. Proc Natl Acad Sci U S A 2024; 121:e2401658121. [PMID: 39136987 DOI: 10.1073/pnas.2401658121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 07/10/2024] [Indexed: 08/15/2024] Open
Abstract
Alloreactive memory T cells have been implicated as central drivers of transplant rejection. Perplexingly, innate cytokines, such as IL-6, IL-1β, and IL-12, are also associated with rejection of organ transplants. However, the pathways of innate immune activation in allogeneic transplantation are unclear. While the role of microbial and cell death products has been previously described, we identified alloreactive memory CD4 T cells as the primary triggers of innate inflammation. Memory CD4 T cells engaged MHC II-mismatched dendritic cells (DCs), leading to the production of innate inflammatory cytokines. This innate inflammation was independent of several pattern recognition receptors and was primarily driven by TNF superfamily ligands expressed by alloreactive memory CD4 T cells. Blocking of CD40L and TNFα resulted in dampened inflammation, and mice genetically deficient in these molecules exhibited prolonged survival of cardiac allografts. Furthermore, myeloid cell and CD8 T cell infiltration into cardiac transplants was compromised in both CD40L- and TNFα-deficient recipients. Strikingly, we found that priming of naive alloreactive CD8 T cells was dependent on licensing of DCs by memory CD4 T cells. This study unravels the key mechanisms by which alloreactive memory CD4 T cells contribute to destructive pathology and transplant rejection.
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Affiliation(s)
- Irene Saha
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Amanpreet Singh Chawla
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Ana Paula B N Oliveira
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Eileen E Elfers
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Kathrynne Warrick
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Immunology Graduate Program, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45220
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45229
| | - Hannah E Meibers
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Immunology Graduate Program, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45220
| | - Viral G Jain
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Thomas Hagan
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH 45220
| | - Jonathan D Katz
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH 45220
| | - Chandrashekhar Pasare
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH 45220
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3
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Borges VM, Marinho FV, Caldeira CVA, de Queiroz NMGP, Oliveira SC. Bacillus Calmette-Guérin immunotherapy induces an efficient antitumor response to control murine melanoma depending on MyD88 signaling. Front Immunol 2024; 15:1380069. [PMID: 38835781 PMCID: PMC11148268 DOI: 10.3389/fimmu.2024.1380069] [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: 02/01/2024] [Accepted: 05/03/2024] [Indexed: 06/06/2024] Open
Abstract
Bacillus Calmette-Guérin (BCG) is the first line treatment for bladder cancer and it is also proposed for melanoma immunotherapy. BCG modulates the tumor microenvironment (TME) inducing an antitumor effective response, but the immune mechanisms involved still poorly understood. The immune profile of B16-F10 murine melanoma cells was assessed by infecting these cells with BCG or stimulating them with agonists for different innate immune pathways such as TLRs, inflammasome, cGAS-STING and type I IFN. B16-F10 did not respond to any of those stimuli, except for type I IFN agonists, contrasting with bone marrow-derived macrophages (BMDMs) that showed high production of proinflammatory cytokines. Additionally, we confirmed that BCG is able to infect B16-F10, which in turn can activate macrophages and spleen cells from mice in co-culture experiments. Furthermore, we established a subcutaneous B16-F10 melanoma model for intratumoral BCG treatment and compared wild type mice to TLR2-/-, TLR3-/-, TLR4-/-, TLR7-/-, TLR3/7/9-/-, caspase 1-/-, caspase 11-/-, IL-1R-/-, cGAS-/-, STING-/-, IFNAR-/-, MyD88-/-deficient animals. These results in vivo demonstrate that MyD88 signaling is important for BCG immunotherapy to control melanoma in mice. Also, BCG fails to induce cytokine production in the co-culture experiments using B16-F10 and BMDMs or spleen cells derived from MyD88-/- compared to wild-type (WT) animals. Immunotherapy with BCG was not able to induce the recruitment of inflammatory cells in the TME from MyD88-/- mice, impairing tumor control and IFN-γ production by T cells. In conclusion, MyD88 impacts on both innate and adaptive responses to BCG leading to an efficient antitumor response against melanoma.
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Affiliation(s)
- Vinícius M. Borges
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Fábio V. Marinho
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Christiane V. A. Caldeira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Nina M. G. P. de Queiroz
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Sergio C. Oliveira
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Institut Pasteur de São Paulo, São Paulo, Brazil
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4
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Longo Y, Mascaraque SM, Andreacchio G, Werner J, Katahira I, De Marchi E, Pegoraro A, Lebbink RJ, Köhrer K, Petzsch P, Tao R, Di Virgilio F, Adinolfi E, Drexler I. The purinergic receptor P2X7 as a modulator of viral vector-mediated antigen cross-presentation. Front Immunol 2024; 15:1360140. [PMID: 38711513 PMCID: PMC11070468 DOI: 10.3389/fimmu.2024.1360140] [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: 12/22/2023] [Accepted: 04/05/2024] [Indexed: 05/08/2024] Open
Abstract
Introduction Modified Vaccinia Virus Ankara (MVA) is a safe vaccine vector inducing long- lasting and potent immune responses. MVA-mediated CD8+T cell responses are optimally induced, if both, direct- and cross-presentation of viral or recombinant antigens by dendritic cells are contributing. Methods To improve the adaptive immune responses, we investigated the role of the purinergic receptor P2X7 (P2RX7) in MVA-infected feeder cells as a modulator of cross-presentation by non-infected dendritic cells. The infected feeder cells serve as source of antigen and provide signals that help to attract dendritic cells for antigen take up and to license these cells for cross-presentation. Results We demonstrate that presence of an active P2RX7 in major histocompatibility complex (MHC) class I (MHCI) mismatched feeder cells significantly enhanced MVA-mediated antigen cross-presentation. This was partly regulated by P2RX7-specific processes, such as the increased availability of extracellular particles as well as the altered cellular energy metabolism by mitochondria in the feeder cells. Furthermore, functional P2RX7 in feeder cells resulted in a delayed but also prolonged antigen expression after infection. Discussion We conclude that a combination of the above mentioned P2RX7-depending processes leads to significantly increased T cell activation via cross- presentation of MVA-derived antigens. To this day, P2RX7 has been mostly investigated in regards to neuroinflammatory diseases and cancer progression. However, we report for the first time the crucial role of P2RX7 for antigen- specific T cell immunity in a viral infection model.
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Affiliation(s)
- Ylenia Longo
- Institute of Virology, Universitätsklinikum Düsseldorf, Düsselorf, Germany
| | | | | | - Julia Werner
- Institute of Molecular Medicine II, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - Ichiro Katahira
- Institute of Molecular Medicine II, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - Elena De Marchi
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Anna Pegoraro
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Robert Jan Lebbink
- Institute of Infection Immunity, University of Utrecht, Utrecht, Netherlands
| | - Karl Köhrer
- Biological and Medical Research Center (BMFZ), Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Patrick Petzsch
- Biological and Medical Research Center (BMFZ), Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Ronny Tao
- Institute of Virology, Universitätsklinikum Düsseldorf, Düsselorf, Germany
| | | | - Elena Adinolfi
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Ingo Drexler
- Institute of Virology, Universitätsklinikum Düsseldorf, Düsselorf, Germany
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5
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Sayaf K, Battistella S, Russo FP. NLRP3 Inflammasome in Acute and Chronic Liver Diseases. Int J Mol Sci 2024; 25:4537. [PMID: 38674122 PMCID: PMC11049922 DOI: 10.3390/ijms25084537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
NLRP3 (NOD-, LRR-, and pyrin domain-containing protein 3) is an intracellular complex that upon external stimuli or contact with specific ligands, recruits other components, forming the NLRP3 inflammasome. The NLRP3 inflammasome mainly mediates pyroptosis, a highly inflammatory mode of regulated cell death, as well as IL-18 and IL-1β production. Acute and chronic liver diseases are characterized by a massive influx of pro-inflammatory stimuli enriched in reactive oxygen species (ROS) and damage-associated molecular patterns (DAMPs) that promote the assemblage and activation of the NLRP3 inflammasome. As the major cause of inflammatory cytokine storm, the NLRP3 inflammasome exacerbates liver diseases, even though it might exert protective effects in regards to hepatitis C and B virus infection (HCV and HBV). Here, we summarize the current knowledge concerning NLRP3 inflammasome function in both acute and chronic liver disease and in the post liver transplant setting, focusing on the molecular mechanisms involved in NLRP3 activity.
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Affiliation(s)
- Katia Sayaf
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35128 Padua, Italy; (K.S.); (S.B.)
| | - Sara Battistella
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35128 Padua, Italy; (K.S.); (S.B.)
- Gastroenterology and Multivisceral Transplant Unit, Padua University Hospital, 35128 Padua, Italy
| | - Francesco Paolo Russo
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35128 Padua, Italy; (K.S.); (S.B.)
- Gastroenterology and Multivisceral Transplant Unit, Padua University Hospital, 35128 Padua, Italy
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6
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Ma M, Jiang W, Zhou R. DAMPs and DAMP-sensing receptors in inflammation and diseases. Immunity 2024; 57:752-771. [PMID: 38599169 DOI: 10.1016/j.immuni.2024.03.002] [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: 12/18/2023] [Revised: 02/17/2024] [Accepted: 03/01/2024] [Indexed: 04/12/2024]
Abstract
Damage-associated molecular patterns (DAMPs) are endogenous danger molecules produced in cellular damage or stress, and they can activate the innate immune system. DAMPs contain multiple types of molecules, including nucleic acids, proteins, ions, glycans, and metabolites. Although these endogenous molecules do not trigger immune response under steady-state condition, they may undergo changes in distribution, physical or chemical property, or concentration upon cellular damage or stress, and then they become DAMPs that can be sensed by innate immune receptors to induce inflammatory response. Thus, DAMPs play an important role in inflammation and inflammatory diseases. In this review, we summarize the conversion of homeostatic molecules into DAMPs; the diverse nature and classification, cellular origin, and sensing of DAMPs; and their role in inflammation and related diseases. Furthermore, we discuss the clinical strategies to treat DAMP-associated diseases via targeting DAMP-sensing receptors.
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Affiliation(s)
- Ming Ma
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - Wei Jiang
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - Rongbin Zhou
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, China; Department of Geriatrics, Gerontology Institute of Anhui Province, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China.
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7
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Sharma A, Dhavale DD, Kotzbauer PT, Weihl CC. VCP Inhibition Augments NLRP3 Inflammasome Activation. Inflammation 2024:10.1007/s10753-024-02013-6. [PMID: 38563877 DOI: 10.1007/s10753-024-02013-6] [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: 11/28/2023] [Revised: 03/20/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
Lysosomal membrane permeabilization caused either via phagocytosis of particulates or the uptake of protein aggregates can trigger the activation of NLRP3 inflammasome- an intense inflammatory response that drives the release of the pro-inflammatory cytokine IL-1β by regulating the activity of CASPASE 1. The maintenance of lysosomal homeostasis and lysosomal membrane integrity is facilitated by the AAA+ ATPase, VCP/p97 (VCP). However, the relationship between VCP and NLRP3 inflammasome activity remains unexplored. Here, we demonstrate that the VCP inhibitors, DBeQ and ML240 elicit the activation of NLRP3 inflammasome in bone marrow-derived macrophages (BMDMs) when used as activation stimuli. Moreover, genetic inhibition of VCP or VCP chemical inhibition enhances lysosomal membrane damage and augments LLoME-associated NLRP3 inflammasome activation in BMDMs. Similarly, VCP inactivation also augments NLRP3 inflammasome activation mediated by aggregated alpha-synuclein fibrils and lysosomal damage. These data suggest that VCP is a participant in the complex regulation of NLRP3 inflammasome activation.
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Affiliation(s)
- Ankita Sharma
- Department of Neurology, Hope Center for Neurological Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Dhruva D Dhavale
- Department of Neurology, Hope Center for Neurological Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Paul T Kotzbauer
- Department of Neurology, Hope Center for Neurological Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Conrad C Weihl
- Department of Neurology, Hope Center for Neurological Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA.
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Pereira ADS, Bottari NB, Nauderer JN, Assmann CE, Copetti PM, Reichert KP, Mostardeiro VB, da Silveira MV, Morsch VMM, Schetinger MRC. Purinergic signaling influences the neuroinflammatory outcomes of a testosterone-derived synthetic in female rats: Resistance training protective effects on brain health. Steroids 2024; 203:109352. [PMID: 38128896 DOI: 10.1016/j.steroids.2023.109352] [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: 08/29/2023] [Revised: 12/06/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
Physical exercise is recognized as a non-pharmacological approach to treat and protect against several neuroinflammatory conditions and thus to prevent brain disorders. However, the interest in ergogenic resources by athletes and bodybuilding practitioners is widespread and on the rise. These substances shorten the process of performance gain and improve aesthetics, having led to the prominent use and abuse of hormones in the past years. Recent evidence has shown that the purinergic system, composed of adenine nucleotides, nucleosides, enzymes, and receptors, participates in a wide range of processes within the brain, such as neuroinflammation, neuromodulation, and cellular communication. Here, we investigated the effects of the anabolic androgenic steroid (AAS) testosterone (TES) at a dose of 70 mg/kg/week in female rats and the neuroprotective effect of resistance exercise related to the purinergic system and oxidative stress parameters. Our findings showed a decrease in ATP and ADO hydrolysis in treated and trained animals. Furthermore, there was an increase in the density of purinoceptors (P2X7 and A2A) and inflammatory markers (IBA-1, NRLP3, CASP-1, IL-1β, and IL-6) in the cerebral cortex of animals that received AAS. On the other hand, exercise reversed neuroinflammatory parameters such as IBA-1, NLRP3, CASP-1, and IL-1β and improved antioxidant response and anti-inflammatory IL-10 cytokine levels. Overall, this study shows that the use of TES without indication or prescription disrupts brain homeostasis, as demonstrated by the increase in neuroinflammation, and that the practice of exercise can protect brain health.
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Affiliation(s)
- Aline da Silva Pereira
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil.
| | - Nathieli Bianchin Bottari
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Jelson Norberto Nauderer
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Charles Elias Assmann
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Priscila Marquezan Copetti
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Karine Paula Reichert
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Vitor Bastianello Mostardeiro
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Marcylene Vieira da Silveira
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Vera Maria Melchiors Morsch
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Maria Rosa Chitolina Schetinger
- Graduate Program in Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil.
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9
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Chen YT, Lohia GK, Chen S, Riquelme SA. Immunometabolic Regulation of Bacterial Infection, Biofilms, and Antibiotic Susceptibility. J Innate Immun 2024; 16:143-158. [PMID: 38310854 PMCID: PMC10914382 DOI: 10.1159/000536649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 02/01/2024] [Indexed: 02/06/2024] Open
Abstract
BACKGROUND Upon infection, mucosal tissues activate a brisk inflammatory response to clear the pathogen, i.e., resistance to disease. Resistance to disease is orchestrated by tissue-resident macrophages, which undergo profound metabolic reprogramming after sensing the pathogen. These metabolically activated macrophages release many inflammatory factors, which promote their bactericidal function. However, in immunocompetent individuals, pathogens like Pseudomonas aeruginosa, Staphylococcus aureus, and Salmonella evade this type of immunity, generating communities that thrive for the long term. SUMMARY These organisms develop features that render them less susceptible to eradication, such as biofilms and increased tolerance to antibiotics. Furthermore, after antibiotic therapy withdrawal, "persister" cells rapidly upsurge, triggering inflammatory relapses that worsen host health. How these pathogens persisted in inflamed tissues replete with activated macrophages remains poorly understood. KEY MESSAGES In this review, we discuss recent findings indicating that the ability of P. aeruginosa, S. aureus, and Salmonella to evolve biofilms and antibiotic tolerance is promoted by the similar metabolic routes that regulate macrophage metabolic reprogramming.
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Affiliation(s)
- Ying-Tsun Chen
- Department of Pediatrics, Division of Infectious Diseases, Columbia University, New York, New York, USA
| | - Gaurav Kumar Lohia
- Department of Pediatrics, Division of Infectious Diseases, Columbia University, New York, New York, USA
| | - Samantha Chen
- Department of Pediatrics, Division of Infectious Diseases, Columbia University, New York, New York, USA
| | - Sebastián A Riquelme
- Department of Pediatrics, Division of Infectious Diseases, Columbia University, New York, New York, USA
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10
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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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Cuthbertson P, Button A, Sligar C, Elhage A, Vine KL, Watson D, Sluyter R. Post-Transplant Cyclophosphamide Combined with Brilliant Blue G Reduces Graft-versus-Host Disease without Compromising Graft-versus-Leukaemia Immunity in Humanised Mice. Int J Mol Sci 2024; 25:1775. [PMID: 38339054 PMCID: PMC10855770 DOI: 10.3390/ijms25031775] [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: 11/28/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Allogeneic haematopoietic stem cell transplantation (HSCT) leads to the establishment of graft-versus-leukaemia (GVL) immunity, but in many cases also results in the development of graft-versus-host disease (GVHD). This study aimed to determine if P2X7 antagonism using Brilliant Blue G (BBG) could improve the beneficial effects of post-transplant cyclophosphamide (PTCy) in a humanised mouse model of GVHD, without comprising GVL immunity. NOD.Cg-Prkdcscid Il2rgtm1Wjl (NSG) mice were injected with human peripheral blood mononuclear cells (PBMCs) (Day 0), then with cyclophosphamide (33 mg/kg) on Days 3 and 4, and with BBG (50 mg/kg) (or saline) on Days 0-10. PTCy with BBG reduced clinical GVHD development like that of PTCy alone. However, histological analysis revealed that the combined treatment reduced liver GVHD to a greater extent than PTCy alone. Flow cytometric analyses revealed that this reduction in liver GVHD by PTCy with BBG corresponded to an increase in human splenic CD39+ Tregs and a decrease in human serum interferon-γ concentrations. In additional experiments, humanised NSG mice, following combined treatment, were injected with human THP-1 acute myeloid leukaemia cells on Day 14. Flow cytometric analyses of liver CD33+ THP-1 cells showed that PTCy with BBG did not mitigate GVL immunity. In summary, PTCy combined with BBG can reduce GVHD without compromising GVL immunity. Future studies investigating P2X7 antagonism in combination with PTCy may lead to the development of novel treatments that more effectively reduce GVHD in allogeneic HSCT patients without promoting leukaemia relapse.
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Affiliation(s)
- Peter Cuthbertson
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia; (P.C.); (A.B.); (C.S.); (A.E.); (K.L.V.); (D.W.)
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Amy Button
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia; (P.C.); (A.B.); (C.S.); (A.E.); (K.L.V.); (D.W.)
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Chloe Sligar
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia; (P.C.); (A.B.); (C.S.); (A.E.); (K.L.V.); (D.W.)
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Amal Elhage
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia; (P.C.); (A.B.); (C.S.); (A.E.); (K.L.V.); (D.W.)
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Kara L. Vine
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia; (P.C.); (A.B.); (C.S.); (A.E.); (K.L.V.); (D.W.)
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Debbie Watson
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia; (P.C.); (A.B.); (C.S.); (A.E.); (K.L.V.); (D.W.)
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Ronald Sluyter
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia; (P.C.); (A.B.); (C.S.); (A.E.); (K.L.V.); (D.W.)
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
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12
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Antuña E, Potes Y, Baena-Huerta FJ, Cachán-Vega C, Menéndez-Coto N, Álvarez Darriba E, Fernández-Fernández M, Burgos Bencosme N, Bermúdez M, López Álvarez EM, Gutiérrez-Rodríguez J, Boga JA, Caballero B, Vega-Naredo I, Coto-Montes A, Garcia-Gonzalez C. NLRP3 Contributes to Sarcopenia Associated to Dependency Recapitulating Inflammatory-Associated Muscle Degeneration. Int J Mol Sci 2024; 25:1439. [PMID: 38338718 PMCID: PMC10855188 DOI: 10.3390/ijms25031439] [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: 12/21/2023] [Revised: 01/17/2024] [Accepted: 01/21/2024] [Indexed: 02/12/2024] Open
Abstract
Sarcopenia, a complex and debilitating condition characterized by progressive deterioration of skeletal muscle, is the primary cause of age-associated disability and significantly impacts healthspan in elderly patients. Despite its prevalence among the aging population, the underlying molecular mechanisms are still under investigation. The NLRP3 inflammasome is crucial in the innate immune response and has a significant impact on diseases related to inflammation and aging. Here, we investigated the expression of the NLRP3 inflammasome pathway and pro-inflammatory cytokines in skeletal muscle and peripheral blood of dependent and independent patients who underwent hip surgery. Patients were categorized into independent and dependent individuals based on their Barthel Index. The expression of NLRP3 inflammasome components was significantly upregulated in sarcopenic muscle from dependent patients, accompanied by higher levels of Caspase-1, IL-1β and IL-6. Among older dependent individuals with sarcopenia, there was a significant increase in the MYH3/MYH2 ratio, indicating a transcriptional shift in expression from mature to developmental myosin isoforms. Creatine kinase levels and senescence markers were also higher in dependent patients, altogether resembling dystrophic diseases and indicating muscle degeneration. In summary, we present evidence for the involvement of the NLRP3/ASC/NEK7/Caspase-1 inflammasome pathway with activation of pro-inflammatory SASP in the outcome of sarcopenia in the elderly.
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Affiliation(s)
- Eduardo Antuña
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Morphology and Cell Biology, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Spain
| | - Yaiza Potes
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Morphology and Cell Biology, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Spain
| | | | - Cristina Cachán-Vega
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Morphology and Cell Biology, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Spain
| | - Nerea Menéndez-Coto
- Department of Morphology and Cell Biology, University of Oviedo, 33006 Oviedo, Spain
| | | | | | | | - Manuel Bermúdez
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Geriatric Service, Monte Naranco Hospital, 33012 Oviedo, Spain
| | - Eva María López Álvarez
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Geriatric Service, Monte Naranco Hospital, 33012 Oviedo, Spain
| | - José Gutiérrez-Rodríguez
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Geriatric Service, Monte Naranco Hospital, 33012 Oviedo, Spain
| | - José Antonio Boga
- Grupo de Investigación Microbiología Traslacional, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Servicio de Microbiología, Hospital Universitario Central de Asturias (HUCA), 33011 Oviedo, Spain
| | - Beatriz Caballero
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Morphology and Cell Biology, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Spain
| | - Ignacio Vega-Naredo
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Morphology and Cell Biology, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Spain
| | - Ana Coto-Montes
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Morphology and Cell Biology, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Spain
| | - Claudia Garcia-Gonzalez
- Research Group OSKAR, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Morphology and Cell Biology, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Spain
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13
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Bou Sader Nehme S, Sanchez-Sarasua S, Adel R, Tuifua M, Ali A, Essawy AE, Abdel Salam S, Hleihel W, Boué-Grabot E, Landry M. P2X4 signalling contributes to hyperactivity but not pain sensitization comorbidity in a mouse model of attention deficit/hyperactivity disorder. Front Pharmacol 2024; 14:1288994. [PMID: 38239187 PMCID: PMC10794506 DOI: 10.3389/fphar.2023.1288994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/12/2023] [Indexed: 01/22/2024] Open
Abstract
Introduction: Attention deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder characterized by hyperactivity, inattention, and impulsivity that often persist until adulthood. Frequent comorbid disorders accompany ADHD and two thirds of children diagnosed with ADHD also suffer from behavioural disorders and from alteration of sensory processing. We recently characterized the comorbidity between ADHD-like symptoms and pain sensitisation in a pharmacological mouse model of ADHD, and we demonstrated the implication of the anterior cingulate cortex and posterior insula. However, few studies have explored the causal mechanisms underlying the interactions between ADHD and pain. The implication of inflammatory mechanisms has been suggested but the signalling pathways involved have not been explored. Methods: We investigated the roles of purinergic signalling, at the crossroad of pain and neuroinflammatory pathways, by using a transgenic mouse line that carries a total deletion of the P2X4 receptor. Results: We demonstrated that P2X4 deletion prevents hyperactivity in the mouse model of ADHD. In contrast, the absence of P2X4 lowered thermal pain thresholds in sham conditions and did not affect pain sensitization in ADHD-like conditions. We further analysed microglia reactivity and the expression of inflammatory markers in wild type and P2X4KO mice. Our results revealed that P2X4 deletion limits microglia reactivity but at the same time exerts proinflammatory effects in the anterior cingulate cortex and posterior insula. Conclusion: This dual role of P2X4 could be responsible for the differential effects noted on ADHD-like symptoms and pain sensitization and calls for further studies to investigate the therapeutic benefit of targeting the P2X4 receptor in ADHD patients.
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Affiliation(s)
- Sarah Bou Sader Nehme
- University of Bordeaux, CNRS, Institute of Neurodegenerative Diseases, IMN, UMR 5293, Bordeaux, France
- Department of Biology, Faculty of Arts and Sciences, Holy Spirit University of Kaslik, Jounieh, Lebanon
| | - Sandra Sanchez-Sarasua
- University of Bordeaux, CNRS, Institute of Neurodegenerative Diseases, IMN, UMR 5293, Bordeaux, France
- Faculty of Health Sciences, University of Jaume I, Castellon, Spain
| | - Ramy Adel
- Zoology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Marie Tuifua
- University of Bordeaux, CNRS, Institute of Neurodegenerative Diseases, IMN, UMR 5293, Bordeaux, France
| | - Awatef Ali
- Zoology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Amina E. Essawy
- Zoology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Sherine Abdel Salam
- Zoology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Walid Hleihel
- Department of Biology, Faculty of Arts and Sciences, Holy Spirit University of Kaslik, Jounieh, Lebanon
| | - Eric Boué-Grabot
- University of Bordeaux, CNRS, Institute of Neurodegenerative Diseases, IMN, UMR 5293, Bordeaux, France
| | - Marc Landry
- University of Bordeaux, CNRS, Institute of Neurodegenerative Diseases, IMN, UMR 5293, Bordeaux, France
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14
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Hosseini A, Germic N, Markov N, Stojkov D, Oberson K, Yousefi S, Simon HU. The regulatory role of eosinophils in adipose tissue depends on autophagy. Front Immunol 2024; 14:1331151. [PMID: 38235134 PMCID: PMC10792036 DOI: 10.3389/fimmu.2023.1331151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/06/2023] [Indexed: 01/19/2024] Open
Abstract
Introduction Obesity is a metabolic condition that elevates the risk of all-cause mortality. Brown and beige adipose tissues, known for their thermogenic properties, offer potential therapeutic targets for combating obesity. Recent reports highlight the role of immune cells, including eosinophils, in adipose tissue homeostasis, while the underlying mechanisms are poorly understood. Methods To study the role of autophagy in eosinophils in this process, we used a genetic mouse model lacking autophagy-associated protein 5 (Atg5), specifically within the eosinophil lineage (Atg5 eoΔ). Results The absence of Atg5 in eosinophils led to increased body weight, impaired glucose metabolism, and alterations in the cellular architecture of adipose tissue. Our findings indicate that Atg5 modulates the functional activity of eosinophils within adipose tissue rather than their abundance. Moreover, RNA-seq analysis revealed upregulation of arginase 2 (Arg2) in Atg5-knockout eosinophils. Increased Arg2 activity was shown to suppress adipocyte beiging. Furthermore, we observed enrichment of the purine pathway in the absence of Atg5 in eosinophils, leading to a pro-inflammatory shift in macrophages and a further reduction in beiging. Discussion The data shed light on the importance of autophagy in eosinophils and its impact on adipose tissue homeostasis by suppressing Arg2 expression and limiting inflammation in adipose tissue.
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Affiliation(s)
- Aref Hosseini
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Nina Germic
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Nikita Markov
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Darko Stojkov
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Kevin Oberson
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Institute of Biochemistry, Brandenburg Medical School, Neuruppin, Germany
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15
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Elalouf A, Elalouf H, Rosenfeld A. Modulatory immune responses in fungal infection associated with organ transplant - advancements, management, and challenges. Front Immunol 2023; 14:1292625. [PMID: 38143753 PMCID: PMC10748506 DOI: 10.3389/fimmu.2023.1292625] [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: 09/11/2023] [Accepted: 11/20/2023] [Indexed: 12/26/2023] Open
Abstract
Organ transplantation stands as a pivotal achievement in modern medicine, offering hope to individuals with end-stage organ diseases. Advancements in immunology led to improved organ transplant survival through the development of immunosuppressants, but this heightened susceptibility to fungal infections with nonspecific symptoms in recipients. This review aims to establish an intricate balance between immune responses and fungal infections in organ transplant recipients. It explores the fundamental immune mechanisms, recent advances in immune response dynamics, and strategies for immune modulation, encompassing responses to fungal infections, immunomodulatory approaches, diagnostics, treatment challenges, and management. Early diagnosis of fungal infections in transplant patients is emphasized with the understanding that innate immune responses could potentially reduce immunosuppression and promise efficient and safe immuno-modulating treatments. Advances in fungal research and genetic influences on immune-fungal interactions are underscored, as well as the potential of single-cell technologies integrated with machine learning for biomarker discovery. This review provides a snapshot of the complex interplay between immune responses and fungal infections in organ transplantation and underscores key research directions.
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Affiliation(s)
- Amir Elalouf
- Department of Management, Bar-Ilan University, Ramat Gan, Israel
| | - Hadas Elalouf
- Information Science Department, Bar-Ilan University, Ramat Gan, Israel
| | - Ariel Rosenfeld
- Information Science Department, Bar-Ilan University, Ramat Gan, Israel
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16
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Wu L, Zhao H, Zhang M, Sun Q, Chang E, Li X, Ouyang W, Le Y, Ma D. Regulated cell death and inflammasome activation in gut injury following traumatic surgery in vitro and in vivo: implication for postoperative death due to multiorgan dysfunction. Cell Death Discov 2023; 9:409. [PMID: 37935670 PMCID: PMC10630406 DOI: 10.1038/s41420-023-01647-z] [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: 03/14/2023] [Revised: 08/29/2023] [Accepted: 09/12/2023] [Indexed: 11/09/2023] Open
Abstract
Postoperative multi-organ dysfunction (MOD) is associated with significant mortality and morbidity. Necroptosis has been implicated in different types of solid organ injury; however, the mechanisms linking necroptosis to inflammation require further elucidation. The present study examines the involvement of necroptosis and NLR family pyrin domain containing 3 (NLRP3) inflammasome in small intestine injury following traumatic surgery. Kidney transplantation in rats and renal ischaemia-reperfusion (I/R) in mice were used as traumatic and laparotomic surgery models to study necroptosis and inflammasome activation in the small intestinal post-surgery; additional groups also received receptor-interacting protein kinase 1 (RIPK1) inhibitor necrostatin-1s (Nec-1s). To investigate whether necroptosis regulates inflammasome activity in vitro, necroptosis was induced in human colonic epithelial cancer cells (Caco-2) by a combination of tumour necrosis factor-alpha (TNFα), SMAC mimetic LCL-161 and pan-caspase inhibitor Q-VD-Oph (together, TLQ), and necroptosis was blocked by Nec-1s or mixed lineage kinase-domain like (MLKL) inhibitor necrosulfonamide (NSA). Renal transplantation and renal ischaemia-reperfusion (I/R) upregulated the expression of necroptosis mediators (RIPK1; RIPK3; phosphorylated-MLKL) and inflammasome components (P2X purinoceptor subfamily 7, P2X7R; NLRP3; caspase-1) in the small intestines at 24 h, and Nec-1s suppressed the expression of inflammasome components. TLQ treatment induced NLRP3 inflammasome, promoted cleavage of caspase-1 and interleukin-1 beta (IL-1β), and stimulated extracellular ATP release from Caco-2 cells, and MLKL inhibitor NSA prevented TLQ-induced inflammasome activity and ATP release from Caco-2 cells. Our work suggested that necroptosis and inflammasome interactively promote remote postoperative small intestinal injury, at least in part, through ATP purinergic signalling. Necroptosis-inflammasome axis may be considered as novel therapeutic target for tackling postoperative MOD in the critical care settings.
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Affiliation(s)
- Lingzhi Wu
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Hailin Zhao
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Mengxu Zhang
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Qizhe Sun
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Enqiang Chang
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Xinyi Li
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Wen Ouyang
- Department of Anesthesiology, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, PR China
- Hunan Province Key Laboratory of Brain Homeostasis, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, PR China
| | - Yuan Le
- Department of Anesthesiology, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, PR China.
- Hunan Province Key Laboratory of Brain Homeostasis, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, PR China.
| | - Daqing Ma
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK.
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
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17
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Wann SR, Lo HR, Chang YT, Liao JB, Wen ZH, Chi PL. P2X7 receptor blockade reduces pyroptotic inflammation and promotes phagocytosis in Vibrio vulnificus infection. J Cell Physiol 2023; 238:2316-2334. [PMID: 37724600 DOI: 10.1002/jcp.31114] [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: 11/22/2022] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 09/21/2023]
Abstract
Vibrio vulnificus, a gram-negative bacterium, causes serious wound infections and septicemia. Once it develops into early phase sepsis, hyperinflammatory immune responses result in poor prognosis in patients. The present study aimed to examine the possible underlying pathogenic mechanism and explore potential agents that could protect against V. vulnificus cytotoxicity. Here, we report that infection of mouse macrophages with V. vulnificus triggers antiphagocytic effects and pyroptotic inflammation via ATP-mediated purinergic P2X7 receptor (P2X7R) signaling. V. vulnificus promoted P2X7-dependent nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) p65 translocation, modulating the expression of the inflammasome sensor NLR family pyrin domain containing 3 (NLRP3), adaptor apoptosis-associated speck-like protein containing a card (ASC), and pyroptotic protein gasdermin D (GSDMD) in mouse macrophages. V. vulnificus induced the NLRP3/caspase-1 inflammasome signaling complex expression that drives GSDMD transmembrane pore formation and secretion of interleukin (IL)-1β, IL-18, and macrophage inflammatory protein-2 (MIP-2). This effect was blocked by P2X7R antagonists, indicating that the P2X7R mediates GSDMD-related pyroptotic inflammation in macrophages through the NF-κB/NLRP3/caspase-1 signaling pathway. Furthermore, blockade of P2X7R reduced V. vulnificus-colony-forming units in the spleen, immune cell infiltration into the skin and lung tissues, and serum concentrations of IL-1β, IL-18, and MIP-2 in mice. These results indicate that P2X7R plays a vital role in mediating phagocytosis by macrophages and pyroptotic inflammation during V. vulnificus infection and provides new opportunities for therapeutic intervention in bacterial infections.
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Affiliation(s)
- Shue-Ren Wann
- Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan
- Department of Medicine, Pingtung Veterans General Hospital, Pingtung City, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung City, Taiwan
| | - Horng-Ren Lo
- Department of Medical Laboratory Science and Biotechnology, Fooyin University, Kaohsiung City, Taiwan
| | - Yun-Te Chang
- Department of Emergency & Critical Care Medicine, Pingtung Veterans General Hospital, Pingtung City, Taiwan
| | - Jia-Bin Liao
- Department of Pathology and Laboratory, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung City, Taiwan
| | - Pei-Ling Chi
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan
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18
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Zhang P, Wu P, Khan UZ, Zhou Z, Sui X, Li C, Dong K, Liu Y, Qing L, Tang J. Exosomes derived from LPS-preconditioned bone marrow-derived MSC modulate macrophage plasticity to promote allograft survival via the NF-κB/NLRP3 signaling pathway. J Nanobiotechnology 2023; 21:332. [PMID: 37716974 PMCID: PMC10504750 DOI: 10.1186/s12951-023-02087-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/29/2023] [Indexed: 09/18/2023] Open
Abstract
OBJECTIVES This study investigated whether exosomes from LPS pretreated bone marrow mesenchymal stem cells (LPS pre-MSCs) could prolong skin graft survival. METHODS The exosomes were isolated from the supernatant of MSCs pretreated with LPS. LPS pre-Exo and rapamycin were injected via the tail vein into C57BL/6 mice allografted with BALB/c skin; graft survival was observed and evaluated. The accumulation and polarization of macrophages were examined by immunohistochemistry. The differentiation of macrophages in the spleen was analyzed by flow cytometry. For in vitro, an inflammatory model was established. Specifically, bone marrow-derived macrophages (BMDMs) were isolated and cultured with LPS (100 ng/ml) for 3 h, and were further treated with LPS pre-Exo for 24 h or 48 h. The molecular signaling pathway responsible for modulating inflammation was examined by Western blotting. The expressions of downstream inflammatory cytokines were determined by Elisa, and the polarization of macrophages was analyzed by flow cytometry. RESULTS LPS pre-Exo could better ablate inflammation compared to untreated MSC-derived exosomes (BM-Exo). These loaded factors inhibited the expressions of inflammatory factors via a negative feedback mechanism. In vivo, LPS pre-Exo significantly attenuated inflammatory infiltration, thus improving the survival of allogeneic skin graft. Flow cytometric analysis of BMDMs showed that LPS pre-Exo were involved in the regulation of macrophage polarization and immune homeostasis during inflammation. Further investigation revealed that the NF-κB/NLRP3/procaspase-1/IL-1β signaling pathway played a key role in LPS pre-Exo-mediated regulation of macrophage polarization. Inhibiting NF-κB in BMDMs could abolish the LPS-induced activation of inflammatory pathways and the polarization of M1 macrophages while increasing the proportion of M2 cells. CONCLUSION LPS pre-Exo are able to switch the polarization of macrophages and enhance the resolution of inflammation. This type of exosomes provides an improved immunotherapeutic potential in prolonging graft survival.
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Affiliation(s)
- PeiYao Zhang
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China
| | - Panfeng Wu
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China
| | - Umar Zeb Khan
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China
| | - Zekun Zhou
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China
| | - Xinlei Sui
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China
| | - Cheng Li
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China
| | - Kangkang Dong
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China
| | - Yongjun Liu
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China
| | - Liming Qing
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China.
| | - Juyu Tang
- Department of Orthopedics, Hand & Microsurgery Surgery, Xiangya Hospital of Central South University, Xiangy Road, Changsha, 410008, Hunan, China.
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19
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Wu Z, Liang J, Zhu S, Liu N, Zhao M, Xiao F, Li G, Yu C, Jin C, Ma J, Sun T, Zhu P. Single-cell analysis of graft-infiltrating host cells identifies caspase-1 as a potential therapeutic target for heart transplant rejection. Front Immunol 2023; 14:1251028. [PMID: 37781362 PMCID: PMC10535112 DOI: 10.3389/fimmu.2023.1251028] [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: 06/30/2023] [Accepted: 08/29/2023] [Indexed: 10/03/2023] Open
Abstract
Aims Understanding the cellular mechanisms underlying early allograft rejection is crucial for the development of effective immunosuppressant strategies. This study aims to investigate the cellular composition of graft-infiltrating cells during the early rejection stage at a single-cell level and identify potential therapeutic targets. Methods A heterotopic heart transplant model was established using enhanced green fluorescent protein (eGFP)-expressing mice as recipients of allogeneic or syngeneic grafts. At 3 days post-transplant, eGFP-positive cells infiltrating the grafts were sorted and subjected to single-cell RNA-seq analysis. Potential molecular targets were evaluated by assessing graft survival and functions following administration of various pharmacological inhibitors. Results A total of 27,053 cells recovered from syngrafts and allografts were classified into 20 clusters based on expression profiles and annotated with a reference dataset. Innate immune cells, including monocytes, macrophages, neutrophils, and dendritic cells, constituted the major infiltrating cell types (>90%) in the grafts. Lymphocytes, fibroblasts, and endothelial cells represented a smaller population. Allografts exhibited significantly increased proportions of monocyte-derived cells involved in antigen processing and presentation, as well as activated lymphocytes, as compared to syngrafts. Differential expression analysis revealed upregulation of interferon activation-related genes in the innate immune cells infiltrating allografts. Pro-inflammatory polarization gene signatures were also enriched in these infiltrating cells of allografts. Gene profiling and intercellular communication analysis identified natural killer cells as the primary source of interferon-γ signaling, activating inflammatory monocytes that displayed strong signals of major histocompatibility complexes and co-stimulatory molecules. The inflammatory response was also associated with promoted T cell proliferation and activation in allografts during the early transplant stages. Notably, caspase-1 exhibited specific upregulation in inflammatory monocytes in response to interferon signaling. The regulon analysis also revealed a significant enrichment of interferon-related motifs within the transcriptional regulatory network of downstream inflammatory genes including caspase-1. Remarkably, pharmacological inhibition of caspase-1 was shown to reduce immune infiltration, prevent acute graft rejection, and improve cardiac contractile function. Conclusion The single-cell transcriptional profile highlighted the crucial role of caspase-1 in interferon-mediated inflammatory monocytes infiltrating heart transplants, suggesting its potential as a therapeutic target for attenuating rejection.
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Affiliation(s)
- Zhichao Wu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
- Department of Thoracic Surgery, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Jialiang Liang
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Shuoji Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Nanbo Liu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Mingyi Zhao
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Fei Xiao
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Guanhua Li
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Changjiang Yu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Chengyu Jin
- Department of Thoracic Surgery, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Jinshan Ma
- Department of Thoracic Surgery, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Tucheng Sun
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Ping Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
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20
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Abboud R, Kim S, Staser K, Jayasinghe RG, Lim S, Amatya P, Frye CC, Kopecky B, Ritchey J, Gao F, Lavine K, Kreisel D, DiPersio JF, Choi J. Baricitinib with cyclosporine eliminates acute graft rejection in fully mismatched skin and heart transplant models. Front Immunol 2023; 14:1264496. [PMID: 37744381 PMCID: PMC10511772 DOI: 10.3389/fimmu.2023.1264496] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/21/2023] [Indexed: 09/26/2023] Open
Abstract
Solid organ transplant represents a potentially lifesaving procedure for patients suffering from end-stage heart, lung, liver, and kidney failure. However, rejection remains a significant source of morbidity and immunosuppressive medications have significant toxicities. Janus kinase (JAK) inhibitors are effective immunosuppressants in autoimmune diseases and graft versus host disease after allogeneic hematopoietic cell transplantation. Here we examine the role of JAK inhibition in preclinical fully major histocompatibility mismatched skin and heart allograft models. Baricitinib combined with cyclosporine A (CsA) preserved fully major histocompatibility mismatched skin grafts for the entirety of a 111-day experimental period. In baricitinib plus CsA treated mice, circulating CD4+T-bet+ T cells, CD8+T-bet+ T cells, and CD4+FOXP3+ regulatory T cells were reduced. Single cell RNA sequencing revealed a unique expression profile in immune cells in the skin of baricitinib plus CsA treated mice, including decreased inflammatory neutrophils and increased CCR2- macrophages. In a fully major histocompatibility mismatched mismatched heart allograft model, baricitinib plus CsA prevented graft rejection for the entire 28-day treatment period compared with 9 days in controls. Our findings establish that the combination of baricitinib and CsA prevents rejection in allogeneic skin and heart graft models and supports the study of JAK inhibitors in human solid organ transplantation.
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Affiliation(s)
- Ramzi Abboud
- Division of Oncology, Section of Leukemia and Stem Cell Transplantation, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Sena Kim
- Division of Oncology, Section of Leukemia and Stem Cell Transplantation, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Karl Staser
- Division of Dermatology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Reyka G. Jayasinghe
- Division of Oncology, Section of Leukemia and Stem Cell Transplantation, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Sora Lim
- Division of Oncology, Section of Leukemia and Stem Cell Transplantation, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Parmeshwar Amatya
- Division of Oncology, Section of Leukemia and Stem Cell Transplantation, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - C. Corbin Frye
- Division of Cardiothoracic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States
| | - Benjamin Kopecky
- Division of Cardiology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Julie Ritchey
- Division of Oncology, Section of Leukemia and Stem Cell Transplantation, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Feng Gao
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States
| | - Kory Lavine
- Division of Cardiology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Daniel Kreisel
- Division of Cardiothoracic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States
| | - John F. DiPersio
- Division of Oncology, Section of Leukemia and Stem Cell Transplantation, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Jaebok Choi
- Division of Oncology, Section of Leukemia and Stem Cell Transplantation, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
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21
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Kahan R, Cray PL, Abraham N, Gao Q, Hartwig MG, Pollara JJ, Barbas AS. Sterile inflammation in liver transplantation. Front Med (Lausanne) 2023; 10:1223224. [PMID: 37636574 PMCID: PMC10449546 DOI: 10.3389/fmed.2023.1223224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/17/2023] [Indexed: 08/29/2023] Open
Abstract
Sterile inflammation is the immune response to damage-associated molecular patterns (DAMPs) released during cell death in the absence of foreign pathogens. In the setting of solid organ transplantation, ischemia-reperfusion injury results in mitochondria-mediated production of reactive oxygen and nitrogen species that are a major cause of uncontrolled cell death and release of various DAMPs from the graft tissue. When properly regulated, the immune response initiated by DAMP-sensing serves as means of damage control and is necessary for initiation of recovery pathways and re-establishment of homeostasis. In contrast, a dysregulated or overt sterile inflammatory response can inadvertently lead to further injury through recruitment of immune cells, innate immune cell activation, and sensitization of the adaptive immune system. In liver transplantation, sterile inflammation may manifest as early graft dysfunction, acute graft failure, or increased risk of immunosuppression-resistant rejection. Understanding the mechanisms of the development of sterile inflammation in the setting of liver transplantation is crucial for finding reliable biomarkers that predict graft function, and for development of therapeutic approaches to improve long-term transplant outcomes. Here, we discuss the recent advances that have been made to elucidate the early signs of sterile inflammation and extent of damage from it. We also discuss new therapeutics that may be effective in quelling the detrimental effects of sterile inflammation.
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Affiliation(s)
| | | | | | | | | | | | - Andrew S. Barbas
- Duke Ex-Vivo Organ Lab (DEVOL)—Division of Abdominal Transplant Surgery, Duke University, Durham, NC, United States
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22
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Kongsomboonvech AK, García-López L, Njume F, Rodriguez F, Souza SP, Rosenberg A, Jensen KDC. Variation in CD8 T cell IFNγ differentiation to strains of Toxoplasma gondii is characterized by small effect QTLs with contribution from ROP16. Front Cell Infect Microbiol 2023; 13:1130965. [PMID: 37287466 PMCID: PMC10242045 DOI: 10.3389/fcimb.2023.1130965] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 04/17/2023] [Indexed: 06/09/2023] Open
Abstract
Introduction Toxoplasma gondii induces a strong CD8 T cell response characterized by the secretion of IFNγ that promotes host survival during infection. The initiation of CD8 T cell IFNγ responses in vitro differs widely between clonal lineage strains of T. gondii, in which type I strains are low inducers, while types II and III strains are high inducers. We hypothesized this phenotype is due to a polymorphic "Regulator Of CD8 T cell Response" (ROCTR). Methods Therefore, we screened F1 progeny from genetic crosses between the clonal lineage strains to identify ROCTR. Naïve antigen-specific CD8 T cells (T57) isolated from transnuclear mice, which are specific for the endogenous and vacuolar TGD057 antigen, were measured for their ability to become activated, transcribe Ifng and produce IFNγ in response to T. gondii infected macrophages. Results Genetic mapping returned four non-interacting quantitative trait loci (QTL) with small effect on T. gondii chromosomes (chr) VIIb-VIII, X and XII. These loci encompass multiple gene candidates highlighted by ROP16 (chrVIIb-VIII), GRA35 (chrX), TgNSM (chrX), and a pair of uncharacterized NTPases (chrXII), whose locus we report to be significantly truncated in the type I RH background. Although none of the chromosome X and XII candidates bore evidence for regulating CD8 T cell IFNγ responses, type I variants of ROP16 lowered Ifng transcription early after T cell activation. During our search for ROCTR, we also noted the parasitophorous vacuole membrane (PVM) targeting factor for dense granules (GRAs), GRA43, repressed the response suggesting PVM-associated GRAs are important for CD8 T cell activation. Furthermore, RIPK3 expression in macrophages was an absolute requirement for CD8 T cell IFNγ differentiation implicating the necroptosis pathway in T cell immunity to T. gondii. Discussion Collectively, our data suggest that while CD8 T cell IFNγ production to T. gondii strains vary dramatically, it is not controlled by a single polymorphism with strong effect. However, early in the differentiation process, polymorphisms in ROP16 can regulate commitment of responding CD8 T cells to IFNγ production which may have bearing on immunity to T. gondii.
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Affiliation(s)
- Angel K. Kongsomboonvech
- Department of Molecular and Cell Biology, University of California, Merced, Merced, CA, United States
- Quantitative Systems Biology Graduate Program, University of California, Merced, Merced, CA, United States
| | - Laura García-López
- Department of Molecular and Cell Biology, University of California, Merced, Merced, CA, United States
- Quantitative Systems Biology Graduate Program, University of California, Merced, Merced, CA, United States
| | - Ferdinand Njume
- Department of Molecular and Cell Biology, University of California, Merced, Merced, CA, United States
| | - Felipe Rodriguez
- Department of Molecular and Cell Biology, University of California, Merced, Merced, CA, United States
| | - Scott P. Souza
- Department of Molecular and Cell Biology, University of California, Merced, Merced, CA, United States
- Quantitative Systems Biology Graduate Program, University of California, Merced, Merced, CA, United States
| | - Alex Rosenberg
- The Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, GA, United States
| | - Kirk D. C. Jensen
- Department of Molecular and Cell Biology, University of California, Merced, Merced, CA, United States
- Health Sciences Research Institute, University of California, Merced, Merced, CA, United States
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23
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Choi M, Shin J, Lee CE, Chung JY, Kim M, Yan X, Yang WH, Cha JH. Immunogenic cell death in cancer immunotherapy. BMB Rep 2023; 56:275-286. [PMID: 37081756 PMCID: PMC10230015 DOI: 10.5483/bmbrep.2023-0024] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 09/29/2023] Open
Abstract
Cancer immunotherapy has been acknowledged as a new paradigm for cancer treatment, with notable therapeutic effects on certain cancer types. Despite their significant potential, clinical studies over the past decade have revealed that cancer immunotherapy has low response rates in the majority of solid tumors. One of the key causes for poor responses is known to be the relatively low immunogenicity of solid tumors. Because most solid tumors are immune desert 'cold tumors' with antitumor immunity blocked from the onset of innate immunity, combination therapies that combine validated T-based therapies with approaches that can increase tumor-immunogenicity are being considered as relevant therapeutic options. This review paper focuses on immunogenic cell death (ICD) as a way of enhancing immunogenicity in tumor tissues. We will thoroughly review how ICDs such as necroptosis, pyroptosis, and ferroptosis can improve anti-tumor immunity and outline clinical trials targeting ICD. Finally, we will discuss the potential of ICD inducers. as an adjuvant for cancer immunotherapy.[BMB Reports 2023; 56(5): 275-286].
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Affiliation(s)
- Minji Choi
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Jisoo Shin
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Chae-Eun Lee
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Joo-Yoon Chung
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Minji Kim
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Xiuwen Yan
- Affiliated Cancer Institute & Hospital and Key Laboratory for Cell Homeostasis and Cancer Research of Guangdong Higher Education Institutes, Guangzhou Medical University, Guangzhou 910095, China, Taichung 40402, Taiwan
| | - Wen-Hao Yang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
| | - Jong-Ho Cha
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon 22212, Korea, Taichung 40402, Taiwan
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24
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Choi M, Shin J, Lee CE, Chung JY, Kim M, Yan X, Yang WH, Cha JH. Immunogenic cell death in cancer immunotherapy. BMB Rep 2023; 56:275-286. [PMID: 37081756 PMCID: PMC10230015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 04/22/2023] Open
Abstract
Cancer immunotherapy has been acknowledged as a new paradigm for cancer treatment, with notable therapeutic effects on certain cancer types. Despite their significant potential, clinical studies over the past decade have revealed that cancer immunotherapy has low response rates in the majority of solid tumors. One of the key causes for poor responses is known to be the relatively low immunogenicity of solid tumors. Because most solid tumors are immune desert 'cold tumors' with antitumor immunity blocked from the onset of innate immunity, combination therapies that combine validated T-based therapies with approaches that can increase tumor-immunogenicity are being considered as relevant therapeutic options. This review paper focuses on immunogenic cell death (ICD) as a way of enhancing immunogenicity in tumor tissues. We will thoroughly review how ICDs such as necroptosis, pyroptosis, and ferroptosis can improve anti-tumor immunity and outline clinical trials targeting ICD. Finally, we will discuss the potential of ICD inducers. as an adjuvant for cancer immunotherapy.[BMB Reports 2023; 56(5): 275-286].
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Affiliation(s)
- Minji Choi
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Jisoo Shin
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Chae-Eun Lee
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Joo-Yoon Chung
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Minji Kim
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
| | - Xiuwen Yan
- Affiliated Cancer Institute & Hospital and Key Laboratory for Cell Homeostasis and Cancer Research of Guangdong Higher Education Institutes, Guangzhou Medical University, Guangzhou 910095, China, Taichung 40402, Taiwan
| | - Wen-Hao Yang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
| | - Jong-Ho Cha
- Department of Biomedical Science and Engineering, Graduate School, Inha University, Incheon 22212, Taiwan
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon 22212, Korea, Taichung 40402, Taiwan
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25
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Li Q, Lan P. Activation of immune signals during organ transplantation. Signal Transduct Target Ther 2023; 8:110. [PMID: 36906586 PMCID: PMC10008588 DOI: 10.1038/s41392-023-01377-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 02/10/2023] [Accepted: 02/15/2023] [Indexed: 03/13/2023] Open
Abstract
The activation of host's innate and adaptive immune systems can lead to acute and chronic graft rejection, which seriously impacts graft survival. Thus, it is particularly significant to clarify the immune signals, which are critical to the initiation and maintenance of rejection generated after transplantation. The initiation of response to graft is dependent on sensing of danger and stranger molecules. The ischemia and reperfusion of grafts lead to cell stress or death, followed by releasing a variety of damage-associated molecular patterns (DAMPs), which are recognized by pattern recognition receptors (PRRs) of host immune cells to activate intracellular immune signals and induce sterile inflammation. In addition to DAMPs, the graft exposed to 'non-self' antigens (stranger molecules) are recognized by the host immune system, stimulating a more intense immune response and further aggravating the graft damage. The polymorphism of MHC genes between different individuals is the key for host or donor immune cells to identify heterologous 'non-self' components in allogeneic and xenogeneic organ transplantation. The recognition of 'non-self' antigen by immune cells mediates the activation of immune signals between donor and host, resulting in adaptive memory immunity and innate trained immunity to the graft, which poses a challenge to the long-term survival of the graft. This review focuses on innate and adaptive immune cells receptor recognition of damage-associated molecular patterns, alloantigens and xenoantigens, which is described as danger model and stranger model. In this review, we also discuss the innate trained immunity in organ transplantation.
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Affiliation(s)
- Qingwen Li
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.,Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Peixiang Lan
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China. .,Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China.
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26
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Furuta K, Onishi H, Ikada Y, Masaki K, Tanaka S, Kaito C. ATP and its metabolite adenosine cooperatively upregulate the antigen-presenting molecules on dendritic cells leading to IFN-γ production by T cells. J Biol Chem 2023; 299:104587. [PMID: 36889584 PMCID: PMC10124915 DOI: 10.1016/j.jbc.2023.104587] [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: 08/04/2022] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 03/08/2023] Open
Abstract
Dendritic cells (DCs) present foreign antigens to T cells via the major histocompatibility complex (MHC), thereby inducing acquired immune responses. ATP accumulates at sites of inflammation or in tumor tissues, which triggers local inflammatory responses. However, it remains to be clarified how ATP modulates the functions of DCs. In this study, we investigated the effects of extracellular ATP on mouse bone marrow-derived dendritic cells (BMDCs), as well as the potential for subsequent T cell activation. We found that high concentrations of ATP (1 mM) upregulated the cell surface expression levels of MHC-I, MHC-II, and co-stimulatory molecules CD80 and CD86, but not those of co-inhibitory molecules PD-L1 and PD-L2 in BMDCs. Increased surface expression of MHC-I, MHC-II, CD80, and CD86 was inhibited by a pan-P2 receptor antagonist. In addition, the upregulation of MHC-I and MHC-II expression was inhibited by an adenosine P1 receptor antagonist and by inhibitors of CD39 and CD73, which metabolize ATP to adenosine. These results suggest that adenosine is required for the ATP-induced upregulation of MHC-I and MHC-II. In the mixed leukocyte reaction assay, ATP-stimulated BMDCs activated CD4 and CD8 T cells and induced interferon-gamma (IFN-γ) production by these T cells. Collectively, these results suggest that high concentrations of extracellular ATP upregulate the expression of antigen-presenting and co-stimulatory molecules but not that of co-inhibitory molecules in BMDCs. Cooperative stimulation of ATP and its metabolite adenosine was required for the upregulation of MHC-I and MHC-II. These ATP-stimulated BMDCs induced the activation of IFN-γ-producing T cells upon antigen presentation.
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Affiliation(s)
- Kazuyuki Furuta
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan.
| | - Hiroka Onishi
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Yuki Ikada
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Kento Masaki
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Satoshi Tanaka
- Department of Pharmacology, Division of Pathological Sciences, Kyoto Pharmaceutical University, 5 Misasagi Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Chikara Kaito
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
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27
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Silva-Vilches C, Bolduan V, Alabdullah M, Steinbrink K, Probst HC, Enk A, Mahnke K. Topical Application of Adenosine A 2-Type Receptor Agonists Prevents Contact Hypersensitivity Reactions in Mice by Affecting Skin Dendritic Cells. J Invest Dermatol 2023; 143:408-418.e6. [PMID: 36174716 DOI: 10.1016/j.jid.2022.07.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 06/18/2022] [Accepted: 07/19/2022] [Indexed: 10/14/2022]
Abstract
Adenosine (Ado) produced by skin and skin migratory CD73+ dendritic cells is critically involved in tolerance to haptens. We therefore investigated the use of Ado receptor agonists for the treatment of contact hypersensitivity reactions. A2A- 4-[2-[[6-Amino-9-(N-ethyl-β-D-ribofuranuronamidosyl)-9H-purin-2-yl]amino] ethyl]benzenepropanoic acid hydrochloride (CGS) and A2B- 2-[[6-Amino-3,5-dicyano-4-[4-[cyclopropylmethoxy]phenyl]-2-pyridinyl]thio]-acetamide (BAY) specific Ado receptor agonists were epicutaneously applied to the skin before sensitization and challenge with DNFB. Both agonists reduced ear swelling compared with solvent controls. This was accompanied by fewer activated T cells in the skin after the challenge and by higher numbers of T cells expressing anergic markers such as LAG-3, CD137, PD-1, CD272, and TIM-3 in the lymph nodes of CGS-treated groups. In ear tissue, Ado receptor agonist treatment reduced the production of proinflammatory cytokines and chemokines as well as the infiltration by neutrophils after sensitization. Moreover, reduced numbers of skin migratory dendritic cells producing less IL-12 and exhibiting lower expression of CD86 were recorded in lymph nodes after sensitization. In cocultures of skin migratory dendritic cells from CGS-treated mice with T cells, reduced proliferation of T cells and decreased secretion of proinflammatory cytokines compared with that of solvent controls were apparent. In conclusion, topical application of Ado receptor agonists to the skin prevents sensitization of T cells against haptens by reducing the migration and activation of skin migratory dendritic cells.
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Affiliation(s)
- Cinthia Silva-Vilches
- Department of Dermatology, University Hospital Heidelberg, Ruprecht Karls University of Heidelberg, Heidelberg, Germany
| | - Vanessa Bolduan
- Department of Dermatology, University Hospital Heidelberg, Ruprecht Karls University of Heidelberg, Heidelberg, Germany
| | - Mohamad Alabdullah
- Department of Dermatology, University Hospital Heidelberg, Ruprecht Karls University of Heidelberg, Heidelberg, Germany
| | - Kerstin Steinbrink
- Department of Dermatology, University Hospital Münster, Westfälische Wilhelms-University Münster, Münster, Germany
| | | | - Alexander Enk
- Department of Dermatology, University Hospital Heidelberg, Ruprecht Karls University of Heidelberg, Heidelberg, Germany
| | - Karsten Mahnke
- Department of Dermatology, University Hospital Heidelberg, Ruprecht Karls University of Heidelberg, Heidelberg, Germany.
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Caballero-Herrero MJ, Jumilla E, Buitrago-Ruiz M, Valero-Navarro G, Cuevas S. Role of Damage-Associated Molecular Patterns (DAMPS) in the Postoperative Period after Colorectal Surgery. Int J Mol Sci 2023; 24:ijms24043862. [PMID: 36835273 PMCID: PMC9958549 DOI: 10.3390/ijms24043862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/06/2023] [Accepted: 02/11/2023] [Indexed: 02/17/2023] Open
Abstract
Anastomotic leakage (AL) is a defect of the intestinal wall at the anastomotic site and is one of the most severe complications in colorectal surgery. Previous studies have shown that the immune system response plays a significant role in the development of AL. In recent years, DAMPs (damage-associated molecular patterns) have been identified as cellular compounds with the ability to activate the immune system. The NLRP3 inflammasome plays an important role in the inflammatory responses which are mediated by DAMPs such as ATP, HSP proteins or uric acid crystals, when found in extracellular environments. Recent publications suggest that systemic concentration of DAMPs in patients with colorectal surgery may determine the inflammatory process and have a role in the occurrence of AL and other post-surgery complications. This review provides valuable knowledge about the current evidence supporting this hypothesis and highlights the possible role of these compounds in postoperative processes, which could open a new path to explore new strategies to prevent possible post-surgical complications.
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Affiliation(s)
- María José Caballero-Herrero
- Molecular Inflammation Group, Biomedical Research Institute of Murcia Pascual Parrilla (IMIB), 30120 Murcia, Spain
| | - Esther Jumilla
- Molecular Inflammation Group, Biomedical Research Institute of Murcia Pascual Parrilla (IMIB), 30120 Murcia, Spain
| | - Manuel Buitrago-Ruiz
- General and Digestive System Surgery, Morales Meseguer University Hospital, 30008 Murcia, Spain
| | - Graciela Valero-Navarro
- General and Digestive System Surgery, Morales Meseguer University Hospital, 30008 Murcia, Spain
- Surgical Research in Health Area, Institute of Biosanitary Research Pascual Parrilla (IMIB), Department of Surgery, Pediatrics, Obstetrics and Gynecology, University of Murcia, 30100 Murcia, Spain
- Correspondence: (G.V.-N.); (S.C.); Tel.: +34-968360900 (ext. 2358) (G.V.-N.); +34-868885039 (S.C.)
| | - Santiago Cuevas
- Molecular Inflammation Group, Biomedical Research Institute of Murcia Pascual Parrilla (IMIB), 30120 Murcia, Spain
- Correspondence: (G.V.-N.); (S.C.); Tel.: +34-968360900 (ext. 2358) (G.V.-N.); +34-868885039 (S.C.)
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29
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Pharmacological suppression of NLRP3 inflammasome attenuated the development of autoimmune thyroiditis. Cell Immunol 2023; 384:104659. [PMID: 36608372 DOI: 10.1016/j.cellimm.2022.104659] [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: 08/16/2022] [Revised: 11/20/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Autoimmune thyroiditis (AIT), characterized by an endless inflammatory process of self-destruction, ultimately leads to chronic swelling of the thyroid gland and its dysfunction. Here, we investigated the involvement of the NLR pyrin domain-containing 3 (NLRP3) inflammasome in AIT development. We found that NLRP3 is significantly upregulated in the thyroid of AIT patients and mice with experimental autoimmune thyroiditis (EAT). Pharmacological suppression of NLRP3 using its inhibitor MCC950 suppressed the progression of EAT in vivo. Furthermore, MCC950 treatment significantly reduced the numbers of infiltrating CD4+ and CD8+ T cells in the thyroid. Moreover, MCC950 significantly lowered the amounts of T helper 1 cells, T helper 17 cells, interferon gamma, and interleukin-17A; however, it significantly increased regulatory-T-cell numbers and interleukin-10 levels. These results suggest that suppression of NLRP3 inflammasome activation reverses AIT by inhibiting Th1- and Th17-cell responses and promoting Treg cell responses. Hence, the NLRP3 inflammasome is a promising therapeutic and theragnostic target in AIT. inhibits Th1- and Th17-cell responses and promotes Treg cell responses.
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Anderson FL, Biggs KE, Rankin BE, Havrda MC. NLRP3 inflammasome in neurodegenerative disease. Transl Res 2023; 252:21-33. [PMID: 35952982 PMCID: PMC10614656 DOI: 10.1016/j.trsl.2022.08.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 01/14/2023]
Abstract
Neurodegenerative diseases are characterized by a dysregulated neuro-glial microenvironment, culminating in functional deficits resulting from neuronal cell death. Inflammation is a hallmark of the neurodegenerative microenvironment and despite a critical role in tissue homeostasis, increasing evidence suggests that chronic inflammatory insult can contribute to progressive neuronal loss. Inflammation has been studied in the context of neurodegenerative disorders for decades but few anti-inflammatory treatments have advanced to clinical use. This is likely due to the related challenges of predicting and mitigating off-target effects impacting the normal immune response while detecting inflammatory signatures that are specific to the progression of neurological disorders. Inflammasomes are pro-inflammatory cytosolic pattern recognition receptors functioning in the innate immune system. Compelling pre-clinical data has prompted an intense interest in the role of the NLR family pyrin domain containing 3 (NLRP3) inflammasome in neurodegenerative disease. NLRP3 is typically inactive but can respond to sterile triggers commonly associated with neurodegenerative disorders including protein misfolding and aggregation, mitochondrial and oxidative stress, and exposure to disease-associated environmental toxicants. Clear evidence of enhanced NLRP3 inflammasome activity in common neurodegenerative diseases has coincided with rapid advancement of novel small molecule therapeutics making the NLRP3 inflammasome an attractive target for near-term interventional studies. In this review, we highlight evidence from model systems and patients indicating inflammasome activity in neurodegenerative disease associated with the NLRP3 inflammasome's ability to recognize pathologic forms of amyloid-β, tau, and α-synuclein. We discuss inflammasome-driven pyroptotic processes highlighting the potential utility of evaluating extracellular inflammasome-related proteins in the context of biomarker discovery. We complete the report by pointing out gaps in our understanding of intracellular modifiers of inflammasome activity and mechanisms regulating the resolution of inflammasome activation. The literature review and perspectives provide a conceptual platform for continued analysis of inflammation in neurodegenerative diseases through the study of inflammasomes and pyroptosis, mechanisms of inflammation and cell death now recognized to function in multiple highly prevalent neurological disorders.
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Affiliation(s)
- Faith L Anderson
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Hanover, New Hampshire
| | - Karl E Biggs
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Hanover, New Hampshire
| | - Brynn E Rankin
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Hanover, New Hampshire
| | - Matthew C Havrda
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Hanover, New Hampshire.
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31
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Kattan D, Barsa C, Mekhijian S, Shakkour Z, Jammoul M, Doumit M, Zabala MCP, Darwiche N, Eid AH, Mechref Y, Wang KK, de Rivero Vaccari JP, Munoz Pareja JC, Kobeissy F. Inflammasomes as biomarkers and therapeutic targets in traumatic brain injury and related-neurodegenerative diseases: A comprehensive overview. Neurosci Biobehav Rev 2023; 144:104969. [PMID: 36423707 PMCID: PMC9805531 DOI: 10.1016/j.neubiorev.2022.104969] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/18/2022] [Accepted: 11/20/2022] [Indexed: 11/23/2022]
Abstract
Given the ambiguity surrounding traumatic brain injury (TBI) pathophysiology and the lack of any Food and Drug Administration (FDA)-approved neurotherapeutic drugs, there is an increasing need to better understand the mechanisms of TBI. Recently, the roles of inflammasomes have been highlighted as both potential therapeutic targets and diagnostic markers in different neurodegenerative disorders. Indeed, inflammasome activation plays a pivotal function in the central nervous system (CNS) response to many neurological conditions, as well as to several neurodegenerative disorders, specifically, TBI. This comprehensive review summarizes and critically discusses the mechanisms that govern the activation and assembly of inflammasome complexes and the major methods used to study inflammasome activation in TBI and its implication for other neurodegenerative disorders. Also, we will review how inflammasome activation is critical in CNS homeostasis and pathogenesis, and how it can impact chronic TBI sequalae and increase the risk of developing neurodegenerative diseases. Additionally, we discuss the recent updates on inflammasome-related biomarkers and the potential to utilize inflammasomes as putative therapeutic targets that hold the potential to better diagnose and treat subjects with TBI.
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Affiliation(s)
- Dania Kattan
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Chloe Barsa
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Sarin Mekhijian
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Zaynab Shakkour
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon; Program for Interdisciplinary Neuroscience, Department of Child Health, School of Medicine, University of Missouri, USA
| | - Maya Jammoul
- Department of Anatomy, Cell Biology, and Physiology, American University of Beirut, Beirut, Lebanon
| | - Mark Doumit
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Maria Camila Pareja Zabala
- Division of Pediatric Critical Care, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Nadine Darwiche
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Ali H Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
| | - Kevin K Wang
- Morehouse School of Medicine, Department of Neurobiology, Atlanta, GA, USA
| | - Juan Pablo de Rivero Vaccari
- Department of Neurological Surgery and the Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - Jennifer C Munoz Pareja
- Division of Pediatric Critical Care, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon; Morehouse School of Medicine, Department of Neurobiology, Atlanta, GA, USA.
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Ochando J, Mulder WJM, Madsen JC, Netea MG, Duivenvoorden R. Trained immunity - basic concepts and contributions to immunopathology. Nat Rev Nephrol 2023; 19:23-37. [PMID: 36253509 PMCID: PMC9575643 DOI: 10.1038/s41581-022-00633-5] [Citation(s) in RCA: 77] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2022] [Indexed: 02/08/2023]
Abstract
Trained immunity is a functional state of the innate immune response and is characterized by long-term epigenetic reprogramming of innate immune cells. This concept originated in the field of infectious diseases - training of innate immune cells, such as monocytes, macrophages and/or natural killer cells, by infection or vaccination enhances immune responses against microbial pathogens after restimulation. Although initially reported in circulating monocytes and tissue macrophages (termed peripheral trained immunity), subsequent findings indicate that immune progenitor cells in the bone marrow can also be trained (that is, central trained immunity), which explains the long-term innate immunity-mediated protective effects of vaccination against heterologous infections. Although trained immunity is beneficial against infections, its inappropriate induction by endogenous stimuli can also lead to aberrant inflammation. For example, in systemic lupus erythematosus and systemic sclerosis, trained immunity might contribute to inflammatory activity, which promotes disease progression. In organ transplantation, trained immunity has been associated with acute rejection and suppression of trained immunity prolonged allograft survival. This novel concept provides a better understanding of the involvement of the innate immune response in different pathological conditions, and provides a new framework for the development of therapies and treatment strategies that target epigenetic and metabolic pathways of the innate immune system.
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Affiliation(s)
- Jordi Ochando
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Transplant Immunology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain.
| | - Willem J. M. Mulder
- grid.6852.90000 0004 0398 8763Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands ,grid.59734.3c0000 0001 0670 2351Biomedical Engineering and Imaging Institute, Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - Joren C. Madsen
- grid.32224.350000 0004 0386 9924Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital, Boston, MA USA ,grid.32224.350000 0004 0386 9924Division of Cardiac Surgery, Department of Surgery, Massachusetts General Hospital, Boston, MA USA
| | - Mihai G. Netea
- grid.10417.330000 0004 0444 9382Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands ,grid.10388.320000 0001 2240 3300Department for Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Raphaël Duivenvoorden
- Biomedical Engineering and Imaging Institute, Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands.
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Baroja-Mazo A, Peñín-Franch A, Lucas-Ruiz F, de Torre-Minguela C, Alarcón-Vila C, Hernández-Caselles T, Pelegrín P. P2X7 receptor activation impairs antitumour activity of natural killer cells. Br J Pharmacol 2023; 180:111-128. [PMID: 36098250 PMCID: PMC10092446 DOI: 10.1111/bph.15951] [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: 02/07/2022] [Revised: 08/25/2022] [Accepted: 09/09/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND AND PURPOSE A high number of intratumoural infiltrating natural killer (NK) cells is associated with better survival in several types of cancer, constituting an important first line of defence against tumours. Hypoxia in the core of solid tumours induces cellular stress and ATP release into the extracellular space where it triggers purinergic receptor activation on tumour-associated immune cells. The aim of this study was to assess whether activation of the purinergic receptor P2X7 by extracellular ATP plays a role in the NK cells antitumour activity. EXPERIMENTAL APPROACH We carried out in vitro experiments using purified human NK cells triggered through P2X7 by extracellular ATP. NK cell killing activity against the tumour target cells K562 was studied by means of NK cytotoxicity assays. Likewise, we designed a subcutaneous solid tumour in vivo mouse model. KEY RESULTS In this study we found that human NK cells, expressing a functional plasma membrane P2X7, acquired an anergic state after ATP treatment, which impaired their antitumour activity and decreased IFN-γ secretion. This effect was reversed by specific P2X7 antagonists and pretreatment with either IL-2 or IL-15. Furthermore, genetic P2rx7 knockdown resulted in improved control of tumour size by NK cells. In addition, IL-2 therapy restored the ability of NK cells to diminish the size of tumours. CONCLUSIONS AND IMPLICATIONS Our results show that P2X7 activation represents a new mechanism whereby NK cells may lose antitumour effectiveness, opening the possibility of generating modified NK cells lacking P2X7 but with improved antitumour capacity.
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Affiliation(s)
- Alberto Baroja-Mazo
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Alejandro Peñín-Franch
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Fernando Lucas-Ruiz
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Carlos de Torre-Minguela
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Cristina Alarcón-Vila
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Trinidad Hernández-Caselles
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain.,Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - Pablo Pelegrín
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain.,Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
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Lucas-Ruiz F, Mateo SV, Jover-Aguilar M, Alconchel F, Martínez-Alarcón L, de Torre-Minguela C, Vidal-Correoso D, Villalba-López F, López-López V, Ríos-Zambudio A, Pons JA, Ramírez P, Pelegrín P, Baroja-Mazo A. Danger signals released during cold ischemia storage activate NLRP3 inflammasome in myeloid cells and influence early allograft function in liver transplantation. EBioMedicine 2022; 87:104419. [PMID: 36543018 PMCID: PMC9794897 DOI: 10.1016/j.ebiom.2022.104419] [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: 07/14/2022] [Revised: 11/04/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Innate immunity plays a fundamental role in solid organ transplantation. Myeloid cells can sense danger signals or DAMPs released after tissue or cell damage, such as during ischemia processes. This study aimed to identify DAMPs released during cold ischemia storage of human liver and analyze their ability to activate the inflammasome in myeloid cells and the possible implications in terms of short-term outcomes of liver transplantation. METHODS 79 samples of organ preservation solution (OPS) from 79 deceased donors were collected after cold static storage. We used different analytical methods to measure DAMPs in these end-ischemic OPS (eiOPS) samples. We also used eiOPS in the human macrophage THP-1 cell line and primary monocyte cultures to study inflammasome activation. FINDINGS Different DAMPs were identified in eiOPS, several of which induced both priming and activation of the NLRP3 inflammasome in human myeloid cells. Cold ischemia time and donation after circulatory death negatively influenced the DAMP signature. Moreover, the presence of oligomeric inflammasomes and interleukin-18 in eiOPS correlated with early allograft dysfunction in liver transplant patients. INTERPRETATION DAMPs released during cold ischemia storage prime and activate the NLRP3 inflammasome in liver macrophages after transplantation, inducing a pro-inflammatory environment that will complicate the outcome of the graft. The use of pharmacological blockers targeting DAMPs or the NLRP3 inflammasome in liver ischemia during static cold storage or through extracorporeal organ support could be a suitable strategy to increase the success of liver transplantation. FUNDING Fundación Mutua Madrileña and Instituto de Salud Carlos III, Madrid, Spain.
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Affiliation(s)
- Fernando Lucas-Ruiz
- Molecular Inflammation Group, University Clinical Hospital Virgen de la Arrixaca, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), 30120, Murcia, Spain
| | - Sandra V. Mateo
- Molecular Inflammation Group, University Clinical Hospital Virgen de la Arrixaca, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), 30120, Murcia, Spain
| | - Marta Jover-Aguilar
- Transplant Unit, Surgery Service, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain,Biomedical Research Institute of Murcia IMIB-Pascual Parrilla, Murcia, Spain
| | - Felipe Alconchel
- Transplant Unit, Surgery Service, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain,Biomedical Research Institute of Murcia IMIB-Pascual Parrilla, Murcia, Spain
| | - Laura Martínez-Alarcón
- Transplant Unit, Surgery Service, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain,Biomedical Research Institute of Murcia IMIB-Pascual Parrilla, Murcia, Spain
| | - Carlos de Torre-Minguela
- Molecular Inflammation Group, University Clinical Hospital Virgen de la Arrixaca, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), 30120, Murcia, Spain
| | - Daniel Vidal-Correoso
- Molecular Inflammation Group, University Clinical Hospital Virgen de la Arrixaca, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), 30120, Murcia, Spain
| | - Francisco Villalba-López
- Molecular Inflammation Group, University Clinical Hospital Virgen de la Arrixaca, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), 30120, Murcia, Spain
| | - Víctor López-López
- Transplant Unit, Surgery Service, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain,Biomedical Research Institute of Murcia IMIB-Pascual Parrilla, Murcia, Spain
| | - Antonio Ríos-Zambudio
- Transplant Unit, Surgery Service, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain,Biomedical Research Institute of Murcia IMIB-Pascual Parrilla, Murcia, Spain
| | - José A. Pons
- Liver Transplantation Unit, Gastroenterology and Hepatology Service, University Clinical Hospital Virgen de la Arrixaca, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), 30120, Murcia, Spain
| | - Pablo Ramírez
- Transplant Unit, Surgery Service, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain,Biomedical Research Institute of Murcia IMIB-Pascual Parrilla, Murcia, Spain
| | - Pablo Pelegrín
- Molecular Inflammation Group, University Clinical Hospital Virgen de la Arrixaca, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), 30120, Murcia, Spain,Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30120, Murcia, Spain,Corresponding author. Campus de Ciencias de la Salud, Edificio LAIB, Office 4.15, Ctra. Buenavista s/n, 30120, Murcia, Spain.
| | - Alberto Baroja-Mazo
- Molecular Inflammation Group, University Clinical Hospital Virgen de la Arrixaca, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), 30120, Murcia, Spain,Corresponding author. Campus de Ciencias de la Salud, Edificio LAIB, Office 4.21, Ctra. Buenavista s/n, 30120, Murcia, Spain.
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Lucas-Ruiz F, Peñín-Franch A, Pons JA, Ramírez P, Pelegrín P, Cuevas S, Baroja-Mazo A. Emerging Role of NLRP3 Inflammasome and Pyroptosis in Liver Transplantation. Int J Mol Sci 2022; 23:ijms232214396. [PMID: 36430874 PMCID: PMC9698208 DOI: 10.3390/ijms232214396] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/11/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
The nucleotide-binding domain leucine-rich repeat-receptor, pyrin domain-containing-3 (NLRP3) inflammasome contributes to the inflammatory response by activating caspase-1, which in turn participates in the maturation of interleukin (IL)-1β and IL-18, which are mainly secreted via pyroptosis. Pyroptosis is a lytic type of cell death that is controlled by caspase-1 processing gasdermin D. The amino-terminal fragment of gasdermin D inserts into the plasma membrane, creating stable pores and enabling the release of several proinflammatory factors. The activation of NLRP3 inflammasome and pyroptosis has been involved in the progression of liver fibrosis and its end-stage cirrhosis, which is among the main etiologies for liver transplantation (LT). Moreover, the NLRP3 inflammasome is involved in ischemia-reperfusion injury and early inflammation and rejection after LT. In this review, we summarize the recent literature addressing the role of the NLRP3 inflammasome and pyroptosis in all stages involved in LT and argue the potential targeting of this pathway as a future therapeutic strategy to improve LT outcomes. Likewise, we also discuss the impact of graft quality influenced by donation after circulatory death and the expected role of machine perfusion technology to modify the injury response related to inflammasome activation.
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Affiliation(s)
- Fernando Lucas-Ruiz
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain
| | - Alejandro Peñín-Franch
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain
| | - José Antonio Pons
- Hepatology and Liver Transplant Unit, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain
| | - Pablo Ramírez
- General Surgery and Abdominal Solid Organ Transplantation Unit, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain
| | - Pablo Pelegrín
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30120 Murcia, Spain
- Correspondence: (P.P.); (A.B.-M.); Tel.: +34-86-8885-031 (P.P.); Tel.: +34-86-8885-039 (A.B.-M.)
| | - Santiago Cuevas
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain
| | - Alberto Baroja-Mazo
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain
- Correspondence: (P.P.); (A.B.-M.); Tel.: +34-86-8885-031 (P.P.); Tel.: +34-86-8885-039 (A.B.-M.)
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36
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Harju N. Regulation of oxidative stress and inflammatory responses in human retinal pigment epithelial cells. Acta Ophthalmol 2022; 100 Suppl 273:3-59. [DOI: 10.1111/aos.15275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Niina Harju
- School of Pharmacy University of Eastern Finland Kuopio Finland
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37
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Jiang ZF, Wu W, Hu HB, Li ZY, Zhong M, Zhang L. P2X7 receptor as the regulator of T-cell function in intestinal barrier disruption. World J Gastroenterol 2022; 28:5265-5279. [PMID: 36185635 PMCID: PMC9521516 DOI: 10.3748/wjg.v28.i36.5265] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/20/2022] [Accepted: 09/01/2022] [Indexed: 02/06/2023] Open
Abstract
The intestinal mucosa is a highly compartmentalized structure that forms a direct barrier between the host intestine and the environment, and its dysfunction could result in a serious disease. As T cells, which are important components of the mucosal immune system, interact with gut microbiota and maintain intestinal homeostasis, they may be involved in the process of intestinal barrier dysfunction. P2X7 receptor (P2X7R), a member of the P2X receptors family, mediates the effects of extracellular adenosine triphosphate and is expressed by most innate or adaptive immune cells, including T cells. Current evidence has demonstrated that P2X7R is involved in inflammation and mediates the survival and differentiation of T lymphocytes, indicating its potential role in the regulation of T cell function. In this review, we summarize the available research about the regulatory role and mechanism of P2X7R on the intestinal mucosa-derived T cells in the setting of intestinal barrier dysfunction.
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Affiliation(s)
- Zhi-Feng Jiang
- Center of Emergency & Intensive Care Unit, Jinshan Hospital of Fudan University, Shanghai 201508, China
| | - Wei Wu
- Department of Critical Care Medicine, Zhongshan Hospital of Fudan University, Shanghai 200032, China
| | - Han-Bing Hu
- Center of Emergency & Intensive Care Unit, Jinshan Hospital of Fudan University, Shanghai 201508, China
| | - Zheng-Yang Li
- Department of Gastroenterology, Jinshan Hospital of Fudan University, Shanghai 201508, China
| | - Ming Zhong
- Department of Critical Care Medicine, Zhongshan Hospital of Fudan University, Shanghai 200032, China
| | - Lin Zhang
- Center of Emergency & Intensive Care Unit, Jinshan Hospital of Fudan University, Shanghai 201508, China
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38
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Rodrigues MC, Morais JAV, Ganassin R, Oliveira GRT, Costa FC, Morais AAC, Silveira AP, Silva VCM, Longo JPF, Muehlmann LA. An Overview on Immunogenic Cell Death in Cancer Biology and Therapy. Pharmaceutics 2022; 14:pharmaceutics14081564. [PMID: 36015189 PMCID: PMC9413301 DOI: 10.3390/pharmaceutics14081564] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/22/2022] [Accepted: 07/25/2022] [Indexed: 11/28/2022] Open
Abstract
Immunogenic cell death (ICD) is a modality of regulated cell death that is sufficient to promote an adaptive immune response against antigens of the dying cell in an immunocompetent host. An important characteristic of ICD is the release and exposure of damage-associated molecular patterns, which are potent endogenous immune adjuvants. As the induction of ICD can be achieved with conventional cytotoxic agents, it represents a potential approach for the immunotherapy of cancer. Here, different aspects of ICD in cancer biology and treatment are reviewed.
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Affiliation(s)
- Mosar Corrêa Rodrigues
- Faculty of Ceilandia, University of Brasilia, Brasilia 72220-275, Brazil; (M.C.R.); (J.A.V.M.); (R.G.); (G.R.T.O.); (F.C.C.)
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
| | - José Athayde Vasconcelos Morais
- Faculty of Ceilandia, University of Brasilia, Brasilia 72220-275, Brazil; (M.C.R.); (J.A.V.M.); (R.G.); (G.R.T.O.); (F.C.C.)
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
| | - Rayane Ganassin
- Faculty of Ceilandia, University of Brasilia, Brasilia 72220-275, Brazil; (M.C.R.); (J.A.V.M.); (R.G.); (G.R.T.O.); (F.C.C.)
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
| | - Giulia Rosa Tavares Oliveira
- Faculty of Ceilandia, University of Brasilia, Brasilia 72220-275, Brazil; (M.C.R.); (J.A.V.M.); (R.G.); (G.R.T.O.); (F.C.C.)
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
| | - Fabiana Chagas Costa
- Faculty of Ceilandia, University of Brasilia, Brasilia 72220-275, Brazil; (M.C.R.); (J.A.V.M.); (R.G.); (G.R.T.O.); (F.C.C.)
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
| | - Amanda Alencar Cabral Morais
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
| | - Ariane Pandolfo Silveira
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
| | - Victor Carlos Mello Silva
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
| | - João Paulo Figueiró Longo
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
| | - Luis Alexandre Muehlmann
- Faculty of Ceilandia, University of Brasilia, Brasilia 72220-275, Brazil; (M.C.R.); (J.A.V.M.); (R.G.); (G.R.T.O.); (F.C.C.)
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (A.A.C.M.); (A.P.S.); (V.C.M.S.); (J.P.F.L.)
- Correspondence:
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Yadav S, Dwivedi A, Tripathi A. Biology of macrophage fate decision: Implication in inflammatory disorders. Cell Biol Int 2022; 46:1539-1556. [PMID: 35842768 DOI: 10.1002/cbin.11854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 05/04/2022] [Accepted: 06/18/2022] [Indexed: 11/11/2022]
Abstract
The activation of immune cells in response to stimuli present in their microenvironment is regulated by their metabolic profile. Unlike the signal transduction events, which overlap to a huge degree in diverse cellular processes, the metabolome of a cell reflects a more precise picture of cell physiology and function. Different factors governing the cellular metabolome include receptor signaling, macro and micronutrients, normoxic and hypoxic conditions, energy needs, and biomass demand. Macrophages have enormous plasticity and can perform diverse functions depending upon their phenotypic state. This review presents recent updates on the cellular metabolome and molecular patterns associated with M1 and M2 macrophages, also termed "classically activated macrophages" and "alternatively activated macrophages," respectively. M1 macrophages are proinflammatory in nature and predominantly Th1-specific immune responses induce their polarization. On the contrary, M2 macrophages are anti-inflammatory in nature and primarily participate in Th2-specific responses. Interestingly, the same macrophage cell can adapt to the M1 or M2 phenotype depending upon the clues from its microenvironment. We elaborate on the various tissue niche-specific factors, which govern macrophage metabolism and heterogeneity. Furthermore, the current review provides an in-depth account of deregulated macrophage metabolism associated with pathological disorders such as cancer, obesity, and atherosclerosis. We further highlight significant differences in various metabolic pathways governing the cellular bioenergetics and their impact on macrophage effector functions and associated disorders.
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Affiliation(s)
- Sarika Yadav
- Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Ashish Dwivedi
- Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Anurag Tripathi
- Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
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40
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Schneider S, Merfort I, Idzko M, Zech A. Blocking P2X purinoceptor 4 signalling alleviates cigarette smoke induced pulmonary inflammation. Respir Res 2022; 23:148. [PMID: 35676684 PMCID: PMC9175376 DOI: 10.1186/s12931-022-02072-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 05/27/2022] [Indexed: 12/31/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is associated with elevated ATP levels in the extracellular space. Once released, ATP serves as danger signal modulating immune responses by activating purinergic receptors. Accordingly, purinergic signalling has been implicated in respiratory inflammation associated with cigarette smoke exposure. However, the role of P2X4-signalling has not been fully elucidated yet.
Methods Here, we analysed the P2X4 mRNA expression in COPD patients as well as cigarette smoke-exposed mice. Furthermore, P2X4-signalling was blocked by either using a specific antagonist or genetic depletion of P2rx4 in mice applied to an acute and prolonged model of cigarette smoke exposure. Finally, we inhibited P2X4-signalling in macrophages derived from THP-1 before stimulation with cigarette smoke extract. Results COPD patients exhibited an increased P2X4 mRNA expression in cells isolated from the bronchoalveolar lavage fluid and peripheral mononuclear cells. Similarly, P2rx4 expression was elevated in lung tissue of mice exposed to cigarette smoke. Blocking P2X4-signalling in mice alleviated cigarette smoke induced airway inflammation as well as lung parenchyma destruction. Additionally, human macrophages derived from THP-1 cells released reduced concentrations of proinflammatory cytokines in response to cigarette smoke extract stimulation when P2X4 was inhibited. Conclusion Taken together, we provide evidence that P2X4-signalling promotes innate immunity in the immunopathologic responses induced by cigarette smoke exposure. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-02072-z.
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Liu C, He D, Zhang S, Chen H, Zhao J, Li X, Zeng X. Homogeneous Polyporus Polysaccharide Inhibit Bladder Cancer by Resetting Tumor-Associated Macrophages Toward M1 Through NF-κB/NLRP3 Signaling. Front Immunol 2022; 13:839460. [PMID: 35603205 PMCID: PMC9115861 DOI: 10.3389/fimmu.2022.839460] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/07/2022] [Indexed: 12/31/2022] Open
Abstract
Bladder cancer(BC)is one of the most common urinary system tumors, which characterized by a high incidence. Polyporus polysaccharide is the main active component of polyporus, which is clinically used in the treatment of bladder cancer, but the mechanism is not clear. In previous study, we isolated homogeneous polyporus polysaccharide(HPP) with high purity from polyporus. The goal of this study was to assess the polarization of macrophages induced by HPP in the bladder tumor microenvironment and explored its anti-bladder cancer mechanism through BBN bladder cancer rat model and Tumor associated macrophages(TAM). The results suggested that HPP regulates TAM polarization to improve the tumor inflammatory microenvironment, possibly through the NF-κB/NLRP3 signaling pathway. Our results suggested that HPP may be a potential therapeutic agent for bladder tumors.
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Affiliation(s)
- Chunping Liu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou, China
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Dongyue He
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shihui Zhang
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Huiqi Chen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jie Zhao
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiong Li
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xing Zeng
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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42
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Wei C, Ma L, Xiang D, Huang C, Wang H, Wang X, Zhang S, Qi X, Shi W, Gao H. Enhanced autophagy alleviated corneal allograft rejection via inhibiting NLRP3 inflammasome activity. Am J Transplant 2022; 22:1362-1371. [PMID: 35092164 DOI: 10.1111/ajt.16968] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 01/05/2022] [Accepted: 01/21/2022] [Indexed: 01/25/2023]
Abstract
Autophagy has been reported to be involved in many aspects of innate and adaptive immunity. Manipulating autophagy is recognized as a promising therapeutic approach for treating immunological diseases, including allograft rejection, and graft-versus-host disease. However, whether autophagy was closely associated with the pathogenesis of corneal allograft rejection remains largely unknown. Here, we showed that rapamycin (RAPA)-induced autophagy alleviated corneal allograft rejection. By contrast, blocking autophagic activity using 3-methyladeine (3-MA) aggravated corneal transplantation rejection. Mechanistically, we revealed that the enhanced autophagic turnover by RAPA inhibited NLRP3 inflammasome activity through NLRP3 degradation. While blocking the fusion of autophagosomes with lysosomes by bafilomycin A1(BafA1), the reduced NLRP3 inflammasome activity induced by RAPA was significantly restored, with increased protein levels of NLRP3 and cleaved Casp-1(p10), as well as IL-1β secretion. Moreover, we further revealed that pharmacologically blocking NLRP3 inflammasome signaling prolonged the survival of corneal allografts. Taken together, these findings underscored the critical roles of enhanced autophagy in treating corneal allograft rejection, which provided an alternative intervention strategy to control corneal transplantation rejection.
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Affiliation(s)
- Chao Wei
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Li Ma
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Demeng Xiang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Cixin Huang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Huijin Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Xin Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Sai Zhang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Xiaolin Qi
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China.,Eye Hospital of Shandong First Medical University (Shandong Eye Hospital), Jinan, China.,School of ophthalmology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Weiyun Shi
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China.,Eye Hospital of Shandong First Medical University (Shandong Eye Hospital), Jinan, China.,School of ophthalmology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Hua Gao
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China.,Eye Hospital of Shandong First Medical University (Shandong Eye Hospital), Jinan, China.,School of ophthalmology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
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Ma XF, Wang TT, Wang WH, Guan L, Guo CR, Li XH, Lei YT, Fan YZ, Yang XN, Hattori M, Nureki O, Zhu MX, Yu Y, Tian Y, Wang J. The long β2,3-sheets encoded by redundant sequences play an integral role in the channel function of P2X7 receptors. J Biol Chem 2022; 298:102002. [PMID: 35504351 PMCID: PMC9163701 DOI: 10.1016/j.jbc.2022.102002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 04/23/2022] [Accepted: 04/27/2022] [Indexed: 11/26/2022] Open
Abstract
P2X receptors are a class of nonselective cation channels widely distributed in the immune and nervous systems, and their dysfunction is a significant cause of tumors, inflammation, leukemia, and immune diseases. P2X7 is a unique member of the P2X receptor family with many properties that differ from other subtypes in terms of primary sequence, the architecture of N- and C-terminals, and channel function. Here, we suggest that the observed lengthened β2- and β3-sheets and their linker (loop β2,3), encoded by redundant sequences, play an indispensable role in the activation of the P2X7 receptor. We show that deletion of this longer structural element leads to the loss of P2X7 function. Furthermore, by combining mutagenesis, chimera construction, surface expression, and protein stability analysis, we found that the deletion of the longer β2,3-loop affects P2X7 surface expression but, more importantly, that this loop affects channel gating of P2X7. We propose that the longer β2,3-sheets may have a negative regulatory effect on a loop on the head domain and on the structural element formed by E171 and its surrounding regions. Understanding the role of the unique structure of the P2X7 receptor in the gating process will aid in the development of selective drugs targeting this subtype.
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Affiliation(s)
- Xue-Fei Ma
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Ting-Ting Wang
- School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Wen-Hui Wang
- School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Li Guan
- School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Chang-Run Guo
- School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Xing-Hua Li
- School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Yun-Tao Lei
- School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Ying-Zhe Fan
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Xiao-Na Yang
- School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Motoyuki Hattori
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Neurobiology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Osamu Nureki
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Michael X Zhu
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Ye Yu
- School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
| | - Yun Tian
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China.
| | - Jin Wang
- School of Basic Medicine and Clinical Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
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Zeng X, Liu D, Wu W, Huo X. PM 2.5 exposure inducing ATP alteration links with NLRP3 inflammasome activation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:24445-24456. [PMID: 35064883 PMCID: PMC8783591 DOI: 10.1007/s11356-021-16405-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 09/04/2021] [Indexed: 06/14/2023]
Abstract
Fine particulate matter (PM2.5) has been the primary air pollutant and the fourth leading risk factor for disease and death in the world. Exposure to PM2.5 is related to activation of the NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome, but the mechanism of PM2.5 affecting the NLRP3 inflammasome is still unclear. Previous studies have shown that PM2.5 can cause alterations in adenosine triphosphate (ATP), and an increase in extracellular ATP and a decrease in intracellular ATP can trigger the activation process of the NLRP3 inflammasome. Therefore, we emphasize that ATP changes may be the central link and key mechanism of PM2.5 exposure that activates the NLRP3 inflammasome. This review briefly elucidates and summarizes how PM2.5 acts on ATP and subsequently further impacts the NLRP3 inflammasome. Investigation of ATP changes due to exposure to PM2.5 may be essential to regulate NLRP3 inflammasome activation and treat inflammation-related diseases such as coronavirus disease 2019 (COVID-19).
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Affiliation(s)
- Xiang Zeng
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, Guangdong, China.
| | - Dongling Liu
- Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Weidong Wu
- Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, Guangdong, China.
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Peñin-Franch A, García-Vidal JA, Martínez CM, Escolar-Reina P, Martínez-Ojeda RM, Gómez AI, Bueno JM, Minaya-Muñoz F, Valera-Garrido F, Medina-Mirapeix F, Pelegrín P. Galvanic current activates the NLRP3 inflammasome to promote type I collagen production in tendon. eLife 2022; 11:73675. [PMID: 35199642 PMCID: PMC8896827 DOI: 10.7554/elife.73675] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 02/23/2022] [Indexed: 11/25/2022] Open
Abstract
The NLRP3 inflammasome coordinates inflammation in response to different pathogen- and damage-associated molecular patterns, being implicated in different infectious, chronic inflammatory, metabolic and degenerative diseases. In chronic tendinopathic lesions, different non-resolving mechanisms produce a degenerative condition that impairs tissue healing and which therefore complicates their clinical management. Percutaneous needle electrolysis consists of the application of a galvanic current and is an emerging treatment for tendinopathies. In the present study, we found that galvanic current activates the NLRP3 inflammasome and induces an inflammatory response that promotes a collagen-mediated regeneration of the tendon in mice. This study establishes the molecular mechanism of percutaneous electrolysis that can be used to treat chronic lesions and describes the beneficial effects of an induced inflammasome-related response.
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46
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Liang T, Zhang Y, Wu S, Chen Q, Wang L. The Role of NLRP3 Inflammasome in Alzheimer’s Disease and Potential Therapeutic Targets. Front Pharmacol 2022; 13:845185. [PMID: 35250595 PMCID: PMC8889079 DOI: 10.3389/fphar.2022.845185] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/24/2022] [Indexed: 12/30/2022] Open
Abstract
Alzheimer’s disease (AD) is a common age-related neurodegenerative disease characterized by progressive cognitive dysfunction and behavioral impairment. The typical pathological characteristics of AD are extracellular senile plaques composed of amyloid ß (Aβ) protein, intracellular neurofibrillary tangles formed by the hyperphosphorylation of the microtubule-associated protein tau, and neuron loss. In the past hundred years, although human beings have invested a lot of manpower, material and financial resources, there is no widely recognized drug for the effective prevention and clinical cure of AD in the world so far. Therefore, evaluating and exploring new drug targets for AD treatment is an important topic. At present, researchers have not stopped exploring the pathogenesis of AD, and the views on the pathogenic factors of AD are constantly changing. Multiple evidence have confirmed that chronic neuroinflammation plays a crucial role in the pathogenesis of AD. In the field of neuroinflammation, the nucleotide-binding oligomerization domain-like receptor pyrin domain-containing 3 (NLRP3) inflammasome is a key molecular link in the AD neuroinflammatory pathway. Under the stimulation of Aβ oligomers and tau aggregates, it can lead to the assembly and activation of NLRP3 inflammasome in microglia and astrocytes in the brain, thereby causing caspase-1 activation and the secretion of IL-1β and IL-18, which ultimately triggers the pathophysiological changes and cognitive decline of AD. In this review, we summarize current literatures on the activation of NLRP3 inflammasome and activation-related regulation mechanisms, and discuss its possible roles in the pathogenesis of AD. Moreover, focusing on the NLRP3 inflammasome and combining with the upstream and downstream signaling pathway-related molecules of NLRP3 inflammasome as targets, we review the pharmacologically related targets and various methods to alleviate neuroinflammation by regulating the activation of NLRP3 inflammasome, which provides new ideas for the treatment of AD.
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Affiliation(s)
- Tao Liang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Zhang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Suyuan Wu
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qingjie Chen
- Hubei Key Laboratory of Diabetes and Angiopathy, Medicine Research Institute, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Lin Wang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Lin Wang,
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47
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Puri G, Naura AS. Implication of mitochondrial ROS-NLRP3 inflammasome axis during two-hit mediated acute lung injury in mice. Free Radic Res 2022; 56:1-16. [PMID: 35129032 DOI: 10.1080/10715762.2021.2023740] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Acute lung injury (ALI) caused by acid aspiration often accompanies bacterial components leading to exaggerated inflammation and can result in acute respiratory distress syndrome (ARDS), but the underlying mechanisms behind such an exacerbation remain unclear. NLRP3 inflammasome and mitochondrial ROS (mtROS) have been implicated in ALI but its role in injury caused through two hit i.e. Hydrochloric acid (HCl) + Lipopolysaccharide (LPS) is not known. Therefore, the present study is designed to elucidate the role of mtROS-NLPR3 inflammasome upon "two-hit" mediated ALI. Our data showed that "two-hit" induced ALI results in aggravated lung inflammation as compared to either of single hit(s) as reflected by a steep increase in inflammatory cells particularly neutrophils in bronchoalveolar lavage fluid (BALF). Further, enhanced inflammation was associated with increased mtROS as depicted by data on mean fluorescence intensity (MFI) of MitoSOX+ neutrophils and macrophages in BALF of two-hit simulated mice. Importantly, ALI results in activation of NLRP3 inflammasome as reflected by active caspase-1 protein expression and IL-1β levels. Interestingly, NLRP3 inflammasome inhibitor, MCC950 suppressed the lung inflammation remarkably. Further, Mito-tempo, a mitochondrial-targeted antioxidant, halted "two-hit" mediated NLRP3 inflammasome activation and IL-1β release followed by amelioration of lung inflammation. Suppression in MFI of MitoSOX+ stained neutrophils and macrophages by Mito-tempo was associated with down-regulation of phospho-p65-NF-κB and its dependent genes (IL-1β/TNF-α/IL-6). Overall, our data suggest that NLRP3 inflammasome activation by mtROS plays a critical role in pathogenesis of exaggerated inflammation and therefore targeting mtROS-NLRP3 inflammasome axis may be an attractive option for combating ALI/ARDS.
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Affiliation(s)
- Gayatri Puri
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - Amarjit S Naura
- Department of Biochemistry, Panjab University, Chandigarh, India
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48
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Abstract
The P2X7 receptor has been proposed as a novel drug target for different types of diseases associated with inflammation, including brain diseases, peripheral inflammation, and cancers. Structurally diverse P2X7 receptor antagonists, mainly negative allosteric modulators (NAMs), have been developed in recent years, and several P2X7 receptor antagonists are currently evaluated in clinical trials. The P2X7 receptor requires high micro- to even millimolar ATP concentrations to be activated. Selective agonists for the P2X7 receptor are not available. Positive allosteric modulators (PAMs) have been described, but PAMs with high potency and selectivity are still lacking. This chapter discusses medicinal chemistry approaches toward the development of P2X7 receptor modulators and presents a selection of recommended tool compounds for studying P2X7 receptors in humans and rodents.
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Affiliation(s)
- Christa E Müller
- Pharmaceutical & Medicinal Chemistry, PharmaCenter Bonn, Pharmaceutical Institute, University of Bonn, Bonn, Germany.
| | - Vigneshwaran Namasivayam
- Pharmaceutical & Medicinal Chemistry, PharmaCenter Bonn, Pharmaceutical Institute, University of Bonn, Bonn, Germany
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49
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Hurtado-Navarro L, Baroja-Mazo A, Pelegrín P. Characterization of P2X7 Receptors in Human Blood Cells. Methods Mol Biol 2022; 2510:279-290. [PMID: 35776331 DOI: 10.1007/978-1-0716-2384-8_15] [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: 06/15/2023]
Abstract
P2X7 receptors are expressed in different circulating immune cells. Depending on the cell in which they are expressed, their function could vary from activation of the leucine-rich repeat receptor pyrin domain containing 3 (NLRP3) inflammasome or the shedding of different surface receptors. The P2X7 receptor has been involved in the evolution of several inflammatory diseases, and thus its characterization in blood samples is important to investigate its role in human diseases. In this chapter, we present different methods to detect the presence and the activation of P2X7 receptors in whole blood samples. These methods could be used to evaluate the degree of P2X7 receptor activation in blood samples from patients suffering different chronic inflammatory diseases.
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Affiliation(s)
- Laura Hurtado-Navarro
- Biomedical Research Institute of Murcia (IMIB), Clinical University Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Alberto Baroja-Mazo
- Biomedical Research Institute of Murcia (IMIB), Clinical University Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Pablo Pelegrín
- Department of Biochemistry and Molecular Biology B and Immunology, University of Murcia, Murcia, Spain.
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50
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Matyśniak D, Chumak V, Nowak N, Kukla A, Lehka L, Oslislok M, Pomorski P. P2X7 receptor: the regulator of glioma tumor development and survival. Purinergic Signal 2021; 18:135-154. [PMID: 34964926 PMCID: PMC8850512 DOI: 10.1007/s11302-021-09834-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 12/05/2021] [Indexed: 11/26/2022] Open
Abstract
P2X7 is an ionotropic nucleotide receptor, forming the cation channel upon ATP stimulation. It can also function as a large membrane pore as well as transmit ATP-dependent signal without forming a channel at all. P2X7 activity in somatic cells is well-known, but remains poorly studied in glioma tumors. The current paper presents the comprehensive study of P2X7 activity in C6 and glioma cell line showing the wide range of effects the receptor has on glioma biology. We observed that P2X7 stimulation boosts glioma cell proliferation and increases cell viability. P2X7 activation promoted cell adhesion, mitochondria depolarization, and reactive oxygen species overproduction in C6 cells. P2X7 receptor also influenced glioma tumor growth in vivo via activation of pro-survival signaling pathways and ATP release. Treatment with Brilliant Blue G, a selective P2X7 antagonist, effectively inhibited glioma tumor development; decreased the expression of negative prognostic cancer markers pro-survival and epithelial-mesenchymal transition (EMT)-related proteins; and modulated the immune response toward glioma tumor in vivo. Finally, pathway-specific enrichment analysis of the microarray data from human patients also showed an upregulation of P2X7 receptor in gliomas from grades I to III. The presented results shed more light on the role of P2X7 receptor in the biology of this disease.
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Affiliation(s)
- Damian Matyśniak
- Laboratory of Molecular Basis of Cell Motility, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur Str., 02-093, Warsaw, Poland
| | - Vira Chumak
- Laboratory of Molecular Basis of Cell Motility, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur Str., 02-093, Warsaw, Poland
- Regenerative Medicine Department, Medical University of Warsaw, Warsaw, Poland
| | - Natalia Nowak
- Laboratory of Imaging Tissue Structure and Function, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Artur Kukla
- Silesian University of Technology, Gliwice, Poland
| | - Lilya Lehka
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
| | - Magdalena Oslislok
- Department of Embryology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Paweł Pomorski
- Laboratory of Molecular Basis of Cell Motility, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur Str., 02-093, Warsaw, Poland.
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