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Hernández González LL, Pérez-Campos Mayoral L, Hernández-Huerta MT, Mayoral Andrade G, Martínez Cruz M, Ramos-Martínez E, Pérez-Campos Mayoral E, Cruz Hernández V, Antonio García I, Matias-Cervantes CA, Avendaño Villegas ME, Lastre Domínguez CM, Romero Díaz C, Ruiz-Rosado JDD, Pérez-Campos E. Targeting Neutrophil Extracellular Trap Formation: Exploring Promising Pharmacological Strategies for the Treatment of Preeclampsia. Pharmaceuticals (Basel) 2024; 17:605. [PMID: 38794175 PMCID: PMC11123764 DOI: 10.3390/ph17050605] [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: 04/23/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
Neutrophils, which constitute the most abundant leukocytes in human blood, emerge as crucial players in the induction of endothelial cell death and the modulation of endothelial cell responses under both physiological and pathological conditions. The hallmark of preeclampsia is endothelial dysfunction induced by systemic inflammation, in which neutrophils, particularly through the formation of neutrophil extracellular traps (NETs), play a pivotal role in the development and perpetuation of endothelial dysfunction and the hypertensive state. Considering the potential of numerous pharmaceutical agents to attenuate NET formation (NETosis) in preeclampsia, a comprehensive assessment of the extensively studied candidates becomes imperative. This review aims to identify mechanisms associated with the induction and negative regulation of NETs in the context of preeclampsia. We discuss potential drugs to modulate NETosis, such as NF-κβ inhibitors, vitamin D, and aspirin, and their association with mutagenicity and genotoxicity. Strong evidence supports the notion that molecules involved in the activation of NETs could serve as promising targets for the treatment of preeclampsia.
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Affiliation(s)
- Leticia Lorena Hernández González
- National Technology of Mexico/IT Oaxaca, Oaxaca de Juárez, Oaxaca 68030, Mexico; (L.L.H.G.); (M.M.C.); (C.M.L.D.); (C.R.D.)
- Faculty of Biological Systems and Technological Innovation, Autonomous University “Benito Juárez” of Oaxaca, Oaxaca 68125, Mexico
| | - Laura Pérez-Campos Mayoral
- Research Center, Faculty of Medicine UNAM-UABJO, Autonomous University “Benito Juárez” of Oaxaca (UABJO), Oaxaca 68020, Mexico; (L.P.-C.M.); (G.M.A.); (E.P.-C.M.)
| | - María Teresa Hernández-Huerta
- CONAHCyT, Faculty of Medicine and Surgery, Autonomous University “Benito Juárez” of Oaxaca (UABJO), Oaxaca 68020, Mexico; (M.T.H.-H.); (C.A.M.-C.)
| | - Gabriel Mayoral Andrade
- Research Center, Faculty of Medicine UNAM-UABJO, Autonomous University “Benito Juárez” of Oaxaca (UABJO), Oaxaca 68020, Mexico; (L.P.-C.M.); (G.M.A.); (E.P.-C.M.)
| | - Margarito Martínez Cruz
- National Technology of Mexico/IT Oaxaca, Oaxaca de Juárez, Oaxaca 68030, Mexico; (L.L.H.G.); (M.M.C.); (C.M.L.D.); (C.R.D.)
| | - Edgar Ramos-Martínez
- School of Sciences, Autonomous University “Benito Juárez” of Oaxaca (UABJO), Oaxaca 68020, Mexico;
| | - Eduardo Pérez-Campos Mayoral
- Research Center, Faculty of Medicine UNAM-UABJO, Autonomous University “Benito Juárez” of Oaxaca (UABJO), Oaxaca 68020, Mexico; (L.P.-C.M.); (G.M.A.); (E.P.-C.M.)
| | | | | | - Carlos Alberto Matias-Cervantes
- CONAHCyT, Faculty of Medicine and Surgery, Autonomous University “Benito Juárez” of Oaxaca (UABJO), Oaxaca 68020, Mexico; (M.T.H.-H.); (C.A.M.-C.)
| | - Miriam Emily Avendaño Villegas
- National Technology of Mexico/IT Oaxaca, Oaxaca de Juárez, Oaxaca 68030, Mexico; (L.L.H.G.); (M.M.C.); (C.M.L.D.); (C.R.D.)
| | | | - Carlos Romero Díaz
- National Technology of Mexico/IT Oaxaca, Oaxaca de Juárez, Oaxaca 68030, Mexico; (L.L.H.G.); (M.M.C.); (C.M.L.D.); (C.R.D.)
- Research Center, Faculty of Medicine UNAM-UABJO, Autonomous University “Benito Juárez” of Oaxaca (UABJO), Oaxaca 68020, Mexico; (L.P.-C.M.); (G.M.A.); (E.P.-C.M.)
| | - Juan de Dios Ruiz-Rosado
- Kidney and Urinary Tract Research Center, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH 43215, USA
- Division of Nephrology and Hypertension, Nationwide Children’s Hospital, Columbus, OH 43205, USA
| | - Eduardo Pérez-Campos
- National Technology of Mexico/IT Oaxaca, Oaxaca de Juárez, Oaxaca 68030, Mexico; (L.L.H.G.); (M.M.C.); (C.M.L.D.); (C.R.D.)
- Clinical Pathology Laboratory, “Eduardo Pérez Ortega”, Oaxaca 68000, Mexico
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Le LHM, Elgamoudi B, Colon N, Cramond A, Poly F, Ying L, Korolik V, Ferrero RL. Campylobacter jejuni extracellular vesicles harboring cytolethal distending toxin bind host cell glycans and induce cell cycle arrest in host cells. Microbiol Spectr 2024; 12:e0323223. [PMID: 38319111 PMCID: PMC10913475 DOI: 10.1128/spectrum.03232-23] [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: 08/30/2023] [Accepted: 12/20/2023] [Indexed: 02/07/2024] Open
Abstract
Cytolethal distending toxins (CDTs) are released by Gram-negative pathogens into the extracellular medium as free toxin or associated with extracellular vesicles (EVs), commonly known as outer membrane vesicles (OMVs). CDT production by the gastrointestinal pathogen Campylobacter jejuni has been implicated in colorectal tumorigenesis. Despite CDT being a major virulence factor for C. jejuni, little is known about the EV-associated form of this toxin. To address this point, C. jejuni mutants lacking each of the three CDT subunits (A, B, and C) were generated. C. jejuni cdtA, cdtB, and cdtC bacteria released EVs in similar numbers and sizes to wild-type bacteria, ranging from 5 to 530 nm (mean ± SEM = 118 ±6.9 nm). As the CdtAC subunits mediate toxin binding to host cells, we performed "surface shearing" experiments, in which EVs were treated with proteinase K and incubated with host cells. These experiments indicated that CDT subunits are internal to EVs and that surface proteins are probably not involved in EV-host cell interactions. Furthermore, glycan array studies demonstrated that EVs bind complex host cell glycans and share receptor binding specificities with C. jejuni bacteria for fucosyl GM1 ganglioside, P1 blood group antigen, sialyl, and sulfated Lewisx. Finally, we show that EVs from C. jejuni WT but not mutant bacteria induce cell cycle arrest in epithelial cells. In conclusion, we propose that EVs are an important mechanism for CDT release by C. jejuni and are likely to play a significant role in toxin delivery to host cells. IMPORTANCE Campylobacter jejuni is the leading cause of foodborne gastroenteritis in humans worldwide and a significant cause of childhood mortality due to diarrheal disease in developing countries. A major factor by which C. jejuni causes disease is a toxin, called cytolethal distending toxin (CDT). The biology of this toxin, however, is poorly understood. In this study, we report that C. jejuni CDT is protected within membrane blebs, known as extracellular vesicles (EVs), released by the bacterium. We showed that proteins on the surfaces of EVs are not required for EV uptake by host cells. Furthermore, we identified several sugar receptors that may be required for EV binding to host cells. By studying the EV-associated form of C. jejuni CDT, we will gain a greater understanding of how C. jejuni intoxicates host cells and how EV-associated CDT may be used in various therapeutic applications, including as anti-tumor therapies.
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Affiliation(s)
- Lena Hoang My Le
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Victoria, Australia
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Victoria, Australia
| | - Bassam Elgamoudi
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Nina Colon
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Victoria, Australia
| | - Angus Cramond
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Victoria, Australia
| | - Frederic Poly
- Enteric Diseases Department, Naval Medical Research Centre, Silver Spring, Maryland, USA
| | - Le Ying
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Victoria, Australia
- Department of Molecular and Translational Sciences, Monash University, Victoria, Australia
| | - Victoria Korolik
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Richard L. Ferrero
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Victoria, Australia
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Victoria, Australia
- Department of Molecular and Translational Sciences, Monash University, Victoria, Australia
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Rawat S, Kumar S, Duggal S, Banerjee A. Phenotypic alteration by dengue virus serotype 2 delays neutrophil apoptosis and stimulates the release of prosurvival secretome with immunomodulatory functions. J Leukoc Biol 2024; 115:276-292. [PMID: 37890093 DOI: 10.1093/jleuko/qiad133] [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: 04/06/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Neutrophils are the most abundant granuloytes, are phenotypically heterogeneous, and exert detrimental or protective roles during antiviral response. Dengue virus has been reported to activate neutrophils. However, the effect of the dengue virus on the neutrophil phenotypes, survival, and release of inflammatory secretome is yet to be understood. Herein, we investigated the effect of dengue virus serotype 2 (DV-2) on effector functions of naïve neutrophils and studied the impact of its secretome on different immune cells. We found that DV-2 activates purified human neutrophils and causes a significant shift toward the CD16bright/CD62Ldim subtype in a multiplicity of infection and time-dependent manner. These phenotypically altered neutrophils show delayed apoptosis through nuclear factor κB and PI3K pathways and have decreased phagocytic capacity. Treatment of neutrophils with myeloperoxidase and PAD4 inhibitor before DV-2 incubation significantly reduced DV-2-induced double-stranded DNA release, suggesting that myeloperoxidase and PAD4 were involved at early stages for the neutrophil activation and double-stranded DNA release. We also report that DV-2-stimulated neutrophil secretome had a significant effect on viral infection, platelet activation, and naïve neutrophil survival via binding of tumor necrosis factor α to tumor necrosis factor receptor 1/2 receptors. Furthermore, incubation of endothelial cells with the DV-2-stimulated neutrophil secretome potentially inhibits proliferation and wound healing capacity and induces endothelial cell death, which can contribute to endothelial barrier dysfunction. In conclusion, the neutrophil-DV-2 interaction modulates the phenotype of neutrophils and the release of prosurvival and antiviral secretome that may act as a double-edged sword during dengue pathogenesis.
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Affiliation(s)
- Surender Rawat
- Laboratory of Virology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, 121001, Haryana, India
| | - Shubham Kumar
- Laboratory of Virology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, 121001, Haryana, India
| | - Shweta Duggal
- Laboratory of Virology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, 121001, Haryana, India
| | - Arup Banerjee
- Laboratory of Virology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, 121001, Haryana, India
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Kemper L, Hensel A. Campylobacter jejuni: targeting host cells, adhesion, invasion, and survival. Appl Microbiol Biotechnol 2023; 107:2725-2754. [PMID: 36941439 PMCID: PMC10027602 DOI: 10.1007/s00253-023-12456-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/23/2023]
Abstract
Campylobacter jejuni, causing strong enteritis, is an unusual bacterium with numerous peculiarities. Chemotactically controlled motility in viscous milieu allows targeted navigation to intestinal mucus and colonization. By phase variation, quorum sensing, extensive O-and N-glycosylation and use of the flagellum as type-3-secretion system C. jejuni adapts effectively to environmental conditions. C. jejuni utilizes proteases to open cell-cell junctions and subsequently transmigrates paracellularly. Fibronectin at the basolateral side of polarized epithelial cells serves as binding site for adhesins CadF and FlpA, leading to intracellular signaling, which again triggers membrane ruffling and reduced host cell migration by focal adhesion. Cell contacts of C. jejuni results in its secretion of invasion antigens, which induce membrane ruffling by paxillin-independent pathway. In addition to fibronectin-binding proteins, other adhesins with other target structures and lectins and their corresponding sugar structures are involved in host-pathogen interaction. Invasion into the intestinal epithelial cell depends on host cell structures. Fibronectin, clathrin, and dynein influence cytoskeletal restructuring, endocytosis, and vesicular transport, through different mechanisms. C. jejuni can persist over a 72-h period in the cell. Campylobacter-containing vacuoles, avoid fusion with lysosomes and enter the perinuclear space via dynein, inducing signaling pathways. Secretion of cytolethal distending toxin directs the cell into programmed cell death, including the pyroptotic release of proinflammatory substances from the destroyed cell compartments. The immune system reacts with an inflammatory cascade by participation of numerous immune cells. The development of autoantibodies, directed not only against lipooligosaccharides, but also against endogenous gangliosides, triggers autoimmune diseases. Lesions of the epithelium result in loss of electrolytes, water, and blood, leading to diarrhea, which flushes out mucus containing C. jejuni. Together with the response of the immune system, this limits infection time. Based on the structural interactions between host cell and bacterium, the numerous virulence mechanisms, signaling, and effects that characterize the infection process of C. jejuni, a wide variety of targets for attenuation of the pathogen can be characterized. The review summarizes strategies of C. jejuni for host-pathogen interaction and should stimulate innovative research towards improved definition of targets for future drug development. KEY POINTS: • Bacterial adhesion of Campylobacter to host cells and invasion into host cells are strictly coordinated processes, which can serve as targets to prevent infection. • Reaction and signalling of host cell depend on the cell type. • Campylobacter virulence factors can be used as targets for development of antivirulence drug compounds.
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Affiliation(s)
- Leon Kemper
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, 48149, Münster, Germany
| | - Andreas Hensel
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, 48149, Münster, Germany.
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