1
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Reedy JL, Jensen KN, Crossen AJ, Basham KJ, Ward RA, Reardon CM, Brown Harding H, Hepworth OW, Simaku P, Kwaku GN, Tone K, Willment JA, Reid DM, Stappers MHT, Brown GD, Rajagopal J, Vyas JM. Fungal melanin suppresses airway epithelial chemokine secretion through blockade of calcium fluxing. Nat Commun 2024; 15:5817. [PMID: 38987270 PMCID: PMC11237042 DOI: 10.1038/s41467-024-50100-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 06/28/2024] [Indexed: 07/12/2024] Open
Abstract
Respiratory infections caused by the human fungal pathogen Aspergillus fumigatus are a major cause of mortality for immunocompromised patients. Exposure to these pathogens occurs through inhalation, although the role of the respiratory epithelium in disease pathogenesis has not been fully defined. Employing a primary human airway epithelial model, we demonstrate that fungal melanins potently block the post-translational secretion of the chemokines CXCL1 and CXCL8 independent of transcription or the requirement of melanin to be phagocytosed, leading to a significant reduction in neutrophil recruitment to the apical airway both in vitro and in vivo. Aspergillus-derived melanin, a major constituent of the fungal cell wall, dampened airway epithelial chemokine secretion in response to fungi, bacteria, and exogenous cytokines. Furthermore, melanin muted pathogen-mediated calcium fluxing and hindered actin filamentation. Taken together, our results reveal a critical role for melanin interaction with airway epithelium in shaping the host response to fungal and bacterial pathogens.
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Affiliation(s)
- Jennifer L Reedy
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Kirstine Nolling Jensen
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Arianne J Crossen
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
| | - Kyle J Basham
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
| | - Rebecca A Ward
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
| | - Christopher M Reardon
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
| | - Hannah Brown Harding
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Olivia W Hepworth
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Patricia Simaku
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
| | - Geneva N Kwaku
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
| | - Kazuya Tone
- Aberdeen Fungal Group, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen, United Kingdom
- Division of Respiratory Diseases, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Janet A Willment
- Aberdeen Fungal Group, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen, United Kingdom
- MRC Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Delyth M Reid
- Aberdeen Fungal Group, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen, United Kingdom
| | - Mark H T Stappers
- Aberdeen Fungal Group, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen, United Kingdom
- MRC Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Gordon D Brown
- Aberdeen Fungal Group, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen, United Kingdom
- MRC Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Jayaraj Rajagopal
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
- Klarman Cell Observatory, Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | - Jatin M Vyas
- Department of Medicine, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
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2
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Glass E, Robinson SL, Rosowski EE. Zebrafish use conserved CLR and TLR signaling pathways to respond to fungal PAMPs in zymosan. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.24.600417. [PMID: 38979385 PMCID: PMC11230284 DOI: 10.1101/2024.06.24.600417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Pattern recognition receptors (PRRs) such as C-type lectin receptors (CLRs) and Toll-like receptors (TLRs) are used by hosts to recognize pathogen-associated molecular patterns (PAMPs) in microorganisms and to initiate innate immune responses. While PRRs exist across invertebrate and vertebrate species, the functional homology of many of these receptors is still unclear. In this study, we investigate the innate immune response of zebrafish larvae to zymosan, a β-glucan-containing particle derived from fungal cell walls. Macrophages and neutrophils robustly respond to zymosan and are required for zymosan-induced activation of the NF-κB transcription factor. Full activation of NF-κB in response to zymosan depends on Card9/Syk and Myd88, conserved CLR and TLR adaptor proteins, respectively. Two putative CLRs, Clec4c and Sclra, are both required for maximal sensing of zymosan and NF-κB activation. Altogether, we identify conserved PRRs and PRR signaling pathways in larval zebrafish that promote recognition of fungal PAMPs. These results inform modeling of human fungal infections in zebrafish and increase our knowledge of the evolution and conservation of PRR pathways in vertebrates.
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Affiliation(s)
- Erin Glass
- Department of Biological Sciences, Clemson University, Clemson, SC
- Eukaryotic Pathogens Innovation Center, Clemson University, Clemson, SC
| | - Stephan L. Robinson
- Eukaryotic Pathogens Innovation Center, Clemson University, Clemson, SC
- School of Medicine Greenville, University of South Carolina, Greenville, SC
| | - Emily E. Rosowski
- Department of Biological Sciences, Clemson University, Clemson, SC
- Eukaryotic Pathogens Innovation Center, Clemson University, Clemson, SC
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3
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Vargas-Blanco DA, Hepworth OW, Basham KJ, Simaku P, Crossen AJ, Timmer KD, Hopke A, Brown Harding H, Vandal SR, Jensen KN, Floyd DJ, Reedy JL, Reardon C, Mansour MK, Ward RA, Irimia D, Abramson JS, Vyas JM. BTK inhibitor-induced defects in human neutrophil effector activity against Aspergillus fumigatus are restored by TNF-α. JCI Insight 2024; 9:e176162. [PMID: 38713531 DOI: 10.1172/jci.insight.176162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 04/23/2024] [Indexed: 05/09/2024] Open
Abstract
Inhibition of Bruton's tyrosine kinase (BTK) through covalent modifications of its active site (e.g., ibrutinib [IBT]) is a preferred treatment for multiple B cell malignancies. However, IBT-treated patients are more susceptible to invasive fungal infections, although the mechanism is poorly understood. Neutrophils are the primary line of defense against these infections; therefore, we examined the effect of IBT on primary human neutrophil effector activity against Aspergillus fumigatus. IBT significantly impaired the ability of neutrophils to kill A. fumigatus and potently inhibited reactive oxygen species (ROS) production, chemotaxis, and phagocytosis. Importantly, exogenous TNF-α fully compensated for defects imposed by IBT and newer-generation BTK inhibitors and restored the ability of neutrophils to contain A. fumigatus hyphal growth. Blocking TNF-α did not affect ROS production in healthy neutrophils but prevented exogenous TNF-α from rescuing the phenotype of IBT-treated neutrophils. The restorative capacity of TNF-α was independent of transcription. Moreover, the addition of TNF-α immediately rescued ROS production in IBT-treated neutrophils, indicating that TNF-α worked through a BTK-independent signaling pathway. Finally, TNF-α restored effector activity of primary neutrophils from patients on IBT therapy. Altogether, our data indicate that TNF-α rescued the antifungal immunity block imposed by inhibition of BTK in primary human neutrophils.
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Affiliation(s)
- Diego A Vargas-Blanco
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Olivia W Hepworth
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Kyle J Basham
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Patricia Simaku
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Arianne J Crossen
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Kyle D Timmer
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Alex Hopke
- Harvard Medical School, Boston, Massachusetts, USA
- BioMEMS Resource Center, Massachusetts General Hospital, Boston, Massachusetts, USA
- Shriners Hospital for Children, Boston, Massachusetts, USA
| | - Hannah Brown Harding
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Steven R Vandal
- Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Kirstine N Jensen
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Daniel J Floyd
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jennifer L Reedy
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher Reardon
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Michael K Mansour
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Rebecca A Ward
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Daniel Irimia
- Harvard Medical School, Boston, Massachusetts, USA
- BioMEMS Resource Center, Massachusetts General Hospital, Boston, Massachusetts, USA
- Shriners Hospital for Children, Boston, Massachusetts, USA
| | - Jeremy S Abramson
- Center for Lymphoma, Mass General Cancer Center, Boston, Massachusetts, USA
| | - Jatin M Vyas
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
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4
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Reedy JL, Jensen KN, Crossen AJ, Basham KJ, Ward RA, Reardon CM, Harding HB, Hepworth OW, Simaku P, Kwaku GN, Tone K, Willment JA, Reid DM, Stappers MHT, Brown GD, Rajagopal J, Vyas JM. Fungal melanin suppresses airway epithelial chemokine secretion through blockade of calcium fluxing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.03.28.534632. [PMID: 37034634 PMCID: PMC10081279 DOI: 10.1101/2023.03.28.534632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Respiratory infections caused by the human fungal pathogen Aspergillus fumigatus are a major cause of mortality for immunocompromised patients. Exposure to these pathogens occurs through inhalation, although the role of the respiratory epithelium in disease pathogenesis has not been fully defined. Employing a primary human airway epithelial model, we demonstrate that fungal melanins potently block the post-translational secretion of the chemokines CXCL1 and CXCL8 independent of transcription or the requirement of melanin to be phagocytosed, leading to a significant reduction in neutrophil recruitment to the apical airway both in vitro and in vivo . Aspergillus -derived melanin, a major constituent of the fungal cell wall, dampened airway epithelial chemokine secretion in response to fungi, bacteria, and exogenous cytokines. Furthermore, melanin muted pathogen-mediated calcium fluxing and hindered actin filamentation. Taken together, our results reveal a critical role for melanin interaction with airway epithelium in shaping the host response to fungal and bacterial pathogens.
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5
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Groß M, Dika B, Loos E, Aliyeva-Schnorr L, Deising HB. The galactose metabolism genes UGE1 and UGM1 are novel virulence factors of the maize anthracnose fungus Colletotrichum graminicola. Mol Microbiol 2024; 121:912-926. [PMID: 38400525 DOI: 10.1111/mmi.15242] [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: 11/21/2023] [Revised: 01/16/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024]
Abstract
Fungal cell walls represent the frontline contact with the host and play a prime role in pathogenesis. While the roles of the cell wall polymers like chitin and branched β-glucan are well understood in vegetative and pathogenic development, that of the most prominent galactose-containing polymers galactosaminogalactan and fungal-type galactomannan is unknown in plant pathogenic fungi. Mining the genome of the maize pathogen Colletotrichum graminicola identified the single-copy key galactose metabolism genes UGE1 and UGM1, encoding a UDP-glucose-4-epimerase and UDP-galactopyranose mutase, respectively. UGE1 is thought to be required for biosynthesis of both polymers, whereas UGM1 is specifically required for fungal-type galactomannan formation. Promoter:eGFP fusion strains revealed that both genes are expressed in vegetative and in pathogenic hyphae at all stages of pathogenesis. Targeted deletion of UGE1 and UGM1, and fluorescence-labeling of galactosaminogalactan and fungal-type galactomannan confirmed that Δuge1 mutants were unable to synthesize either of these polymers, and Δugm1 mutants did not exhibit fungal-type galactomannan. Appressoria of Δuge1, but not of Δugm1 mutants, were defective in adhesion, highlighting a function of galactosaminogalactan in the establishment of these infection cells on hydrophobic surfaces. Both Δuge1 and Δugm1 mutants showed cell wall defects in older vegetative hyphae and severely reduced appressorial penetration competence. On intact leaves of Zea mays, both mutants showed strongly reduced disease symptom severity, indicating that UGE1 and UGM1 represent novel virulence factors of C. graminicola.
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Affiliation(s)
- Maximilian Groß
- Faculty of Natural Sciences III, Institute for Agricultural and Nutritional Sciences, Phytopathology and Plant Protection, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Beate Dika
- Faculty of Natural Sciences III, Institute for Agricultural and Nutritional Sciences, Phytopathology and Plant Protection, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Elisabeth Loos
- Faculty of Natural Sciences III, Institute for Agricultural and Nutritional Sciences, Phytopathology and Plant Protection, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Lala Aliyeva-Schnorr
- Faculty of Natural Sciences III, Institute for Agricultural and Nutritional Sciences, Phytopathology and Plant Protection, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Holger B Deising
- Faculty of Natural Sciences III, Institute for Agricultural and Nutritional Sciences, Phytopathology and Plant Protection, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
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6
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Shankar J, Thakur R, Clemons KV, Stevens DA. Interplay of Cytokines and Chemokines in Aspergillosis. J Fungi (Basel) 2024; 10:251. [PMID: 38667922 PMCID: PMC11051073 DOI: 10.3390/jof10040251] [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: 02/06/2024] [Revised: 03/11/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
Aspergillosis is a fungal infection caused by various species of Aspergillus, most notably A. fumigatus. This fungus causes a spectrum of diseases, including allergic bronchopulmonary aspergillosis, aspergilloma, chronic pulmonary aspergillosis, and invasive aspergillosis. The clinical manifestations and severity of aspergillosis can vary depending on individual immune status and the specific species of Aspergillus involved. The recognition of Aspergillus involves pathogen-associated molecular patterns (PAMPs) such as glucan, galactomannan, mannose, and conidial surface proteins. These are recognized by the pathogen recognition receptors present on immune cells such as Toll-like receptors (TLR-1,2,3,4, etc.) and C-type lectins (Dectin-1 and Dectin-2). We discuss the roles of cytokines and pathogen recognition in aspergillosis from both the perspective of human and experimental infection. Several cytokines and chemokines have been implicated in the immune response to Aspergillus infection, including interferon-γ (IFN-γ), tumor necrosis factor-α (TNF-α), CCR4, CCR17, and other interleukins. For example, allergic bronchopulmonary aspergillosis (ABPA) is characterized by Th2 and Th9 cell-type immunity and involves interleukin (IL)-4, IL-5, IL-13, and IL-10. In contrast, it has been observed that invasive aspergillosis involves Th1 and Th17 cell-type immunity via IFN-γ, IL-1, IL-6, and IL-17. These cytokines activate various immune cells and stimulate the production of other immune molecules, such as antimicrobial peptides and reactive oxygen species, which aid in the clearance of the fungal pathogen. Moreover, they help to initiate and coordinate the immune response, recruit immune cells to the site of infection, and promote clearance of the fungus. Insight into the host response from both human and animal studies may aid in understanding the immune response in aspergillosis, possibly leading to harnessing the power of cytokines or cytokine (receptor) antagonists and transforming them into precise immunotherapeutic strategies. This could advance personalized medicine.
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Affiliation(s)
- Jata Shankar
- Genomic Laboratory, Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat Solan 173234, Himachal Pradesh, India
| | - Raman Thakur
- Department of Medical Laboratory Science, Lovely Professional University, Jalandhar 144001, Punjab, India;
| | - Karl V. Clemons
- California Institute for Medical Research, San Jose, CA 95128, USA; (K.V.C.); (D.A.S.)
- Division of Infectious Diseases and Geographic Medicine, Stanford University Medical School, Stanford, CA 94305, USA
| | - David A. Stevens
- California Institute for Medical Research, San Jose, CA 95128, USA; (K.V.C.); (D.A.S.)
- Division of Infectious Diseases and Geographic Medicine, Stanford University Medical School, Stanford, CA 94305, USA
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7
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Muraosa Y, Hino Y, Takatsuka S, Watanabe A, Sakaida E, Saijo S, Miyazaki Y, Yamasaki S, Kamei K. Fungal chitin-binding glycoprotein induces Dectin-2-mediated allergic airway inflammation synergistically with chitin. PLoS Pathog 2024; 20:e1011878. [PMID: 38170734 PMCID: PMC10763971 DOI: 10.1371/journal.ppat.1011878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 12/01/2023] [Indexed: 01/05/2024] Open
Abstract
Although chitin in fungal cell walls is associated with allergic airway inflammation, the precise mechanism underlying this association has yet to be elucidated. Here, we investigated the involvement of fungal chitin-binding protein and chitin in allergic airway inflammation. Recombinant Aspergillus fumigatus LdpA (rLdpA) expressed in Pichia pastoris was shown to be an O-linked glycoprotein containing terminal α-mannose residues recognized by the host C-type lectin receptor, Dectin-2. Chitin particles were shown to induce acute neutrophilic airway inflammation mediated release of interleukin-1α (IL-1α) associated with cell death. Furthermore, rLdpA-Dectin-2 interaction was shown to promote phagocytosis of rLdpA-chitin complex and activation of mouse bone marrow-derived dendritic cells (BMDCs). Moreover, we showed that rLdpA potently induced T helper 2 (Th2)-driven allergic airway inflammation synergistically with chitin, and Dectin-2 deficiency attenuated the rLdpA-chitin complex-induced immune response in vivo. In addition, we showed that serum LdpA-specific immunoglobulin levels were elevated in patients with pulmonary aspergillosis.
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Affiliation(s)
- Yasunori Muraosa
- Division of Clinical Research, Medical Mycology Research Center, Chiba University, Chiba, Japan
- Department of Fungal Infection, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yutaro Hino
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Shogo Takatsuka
- Department of Fungal Infection, National Institute of Infectious Diseases, Tokyo, Japan
| | - Akira Watanabe
- Division of Clinical Research, Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Emiko Sakaida
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Shinobu Saijo
- Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Yoshitsugu Miyazaki
- Department of Fungal Infection, National Institute of Infectious Diseases, Tokyo, Japan
| | - Sho Yamasaki
- Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba, Japan
- Division of Molecular Design, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Katsuhiko Kamei
- Division of Clinical Research, Medical Mycology Research Center, Chiba University, Chiba, Japan
- Division of Infection Control and Prevention, Medical Mycology Research Center, Chiba University, Chiba, Japan
- Department of Infectious Diseases, Japanese Red Cross Ishinomaki Hospital, Miyagi, Japan
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8
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Brown Harding H, Kwaku GN, Reardon CM, Khan NS, Zamith-Miranda D, Zarnowski R, Tam JM, Bohaen CK, Richey L, Mosallanejad K, Crossen AJ, Reedy JL, Ward RA, Vargas-Blanco DA, Basham KJ, Bhattacharyya RP, Nett JE, Mansour MK, van de Veerdonk FL, Kumar V, Kagan JC, Andes DR, Nosanchuk JD, Vyas JM. Candida albicans extracellular vesicles trigger type I IFN signalling via cGAS and STING. Nat Microbiol 2024; 9:95-107. [PMID: 38168615 PMCID: PMC10959075 DOI: 10.1038/s41564-023-01546-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 11/06/2023] [Indexed: 01/05/2024]
Abstract
The host type I interferon (IFN) pathway is a major signature of inflammation induced by the human fungal pathogen, Candida albicans. However, the molecular mechanism for activating this pathway in the host defence against C. albicans remains unknown. Here we reveal that mice lacking cyclic GMP-AMP synthase (cGAS)-stimulator of IFN genes (STING) pathway components had improved survival following an intravenous challenge by C. albicans. Biofilm-associated C. albicans DNA packaged in extracellular vesicles triggers the cGAS-STING pathway as determined by induction of interferon-stimulated genes, IFNβ production, and phosphorylation of IFN regulatory factor 3 and TANK-binding kinase 1. Extracellular vesicle-induced activation of type I IFNs was independent of the Dectin-1/Card9 pathway and did not require toll-like receptor 9. Single nucleotide polymorphisms in cGAS and STING potently altered inflammatory cytokine production in human monocytes challenged by C. albicans. These studies provide insights into the early innate immune response induced by a clinically significant fungal pathogen.
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Affiliation(s)
- Hannah Brown Harding
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Geneva N Kwaku
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Christopher M Reardon
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Nida S Khan
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Daniel Zamith-Miranda
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
- Division of Infectious Diseases, Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Robert Zarnowski
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Department of Microbiology and Immunology, University of Wisconsin Madison, Madison, WI, USA
| | - Jenny M Tam
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Collins K Bohaen
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Lauren Richey
- Tufts Comparative Medicine Services, Tufts University, Boston, MA, USA
| | - Kenta Mosallanejad
- Division of Gastroenterology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Arianne J Crossen
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Jennifer L Reedy
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Rebecca A Ward
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Diego A Vargas-Blanco
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Kyle J Basham
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Roby P Bhattacharyya
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jeniel E Nett
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Department of Microbiology and Immunology, University of Wisconsin Madison, Madison, WI, USA
| | - Michael K Mansour
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Frank L van de Veerdonk
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Vinod Kumar
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
- University Medical Center Groningen, Department of Genetics, University of Groningen, Groningen, the Netherlands
- Nitte University Centre for Science Education and Research, Medical Sciences Complex, Mangaluru, India
| | - Jonathan C Kagan
- Division of Gastroenterology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - David R Andes
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Department of Microbiology and Immunology, University of Wisconsin Madison, Madison, WI, USA
| | - Joshua D Nosanchuk
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
- Division of Infectious Diseases, Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Jatin M Vyas
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
- Department of Medicine, Harvard Medical School, Boston, MA, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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9
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Cardoso-Miguel MDRD, Bürgel PH, de Castro RJA, Marina CL, de Oliveira SA, Albuquerque P, Silva-Pereira I, Bocca AL, Tavares AH. Dectin-2 is critical for phagocyte function and resistance to Paracoccidioides brasiliensis in mice. Med Mycol 2023; 61:myad117. [PMID: 37960963 DOI: 10.1093/mmy/myad117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/11/2023] [Accepted: 11/11/2023] [Indexed: 11/15/2023] Open
Abstract
Germline-encoded pattern recognition receptors, particularly C-type lectin receptors (CLRs), are essential for phagocytes to sense invading fungal cells. Among CLRs, Dectin-2 (encoded by Clec4n) plays a critical role in the antifungal immune response as it recognizes high-mannose polysaccharides on the fungal cell wall, triggering phagocyte functional activities and ultimately determining adaptive responses. Here, we assessed the role of Dectin-2 on the course of primary Paracoccidioides brasiliensis systemic infection in mice with Dectin-2-targeted deletion. Paracoccidioides brasiliensis constitutes the principal etiologic agent of paracoccidioidomycosis, the most prominent invasive mycosis in Latin American countries. The deficiency of Dectin-2 resulted in shortened survival rates, high lung fungal burden, and increased lung pathology in mice infected with P. brasiliensis. Consistently, dendritic cells (DCs) from mice lacking Dectin-2 infected ex vivo with P. brasiliensis showed impaired secretion of several proinflammatory and regulatory cytokines, including TNF-α, IL-1β, IL-6, and IL-10. Additionally, when cocultured with splenic lymphocytes, DCs were less efficient in promoting a type 1 cytokine pattern secretion (i.e., IFN-γ). In macrophages, Dectin-2-mediated signaling was required to ensure phagocytosis and fungicidal activity associated with nitric oxide production. Overall, Dectin-2-mediated signaling is critical to promote host protection against P. brasiliensis infection, and its exploitation might lead to the development of new vaccines and immunotherapeutic approaches.
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Affiliation(s)
- Mariana de Resende Damas Cardoso-Miguel
- Graduate Program in Microbial Biology, Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
- Department of Cell Biology, Laboratory of Applied Immunology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
| | - Pedro Henrique Bürgel
- Graduate Program in Microbial Biology, Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
- Department of Cell Biology, Laboratory of Applied Immunology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
| | - Raffael Júnio Araújo de Castro
- Department of Cell Biology, Laboratory of Applied Immunology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
| | - Clara Luna Marina
- Department of Cell Biology, Laboratory of Applied Immunology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
| | - Stephan Alberto de Oliveira
- Department of Cell Biology, Laboratory of Applied Immunology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
| | - Patrícia Albuquerque
- Graduate Program in Microbial Biology, Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
- Department of Cell Biology, Laboratory of Molecular Biology of Pathogenic Fungi, University of Brasília, Brasília, DF, Brazil
- Laboratory of Microorganism, Faculty of Ceilândia, University of Brasília, Brasília, DF, Brazil
| | - Ildinete Silva-Pereira
- Department of Cell Biology, Laboratory of Molecular Biology of Pathogenic Fungi, University of Brasília, Brasília, DF, Brazil
| | - Anamélia Lorenzetti Bocca
- Department of Cell Biology, Laboratory of Applied Immunology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
| | - Aldo Henrique Tavares
- Graduate Program in Microbial Biology, Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
- Laboratory of Microorganism, Faculty of Ceilândia, University of Brasília, Brasília, DF, Brazil
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Yan M, Gu Y, Sun H, Ge Q. Neutrophil extracellular traps in tumor progression and immunotherapy. Front Immunol 2023; 14:1135086. [PMID: 36993957 PMCID: PMC10040667 DOI: 10.3389/fimmu.2023.1135086] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 02/28/2023] [Indexed: 03/14/2023] Open
Abstract
Tumor immunity is a growing field of research that involves immune cells within the tumor microenvironment. Neutrophil extracellular traps (NETs) are neutrophil-derived extracellular web-like chromatin structures that are composed of histones and granule proteins. Initially discovered as the predominant host defense against pathogens, NETs have attracted increasing attention due to they have also been tightly associated with tumor. Excessive NET formation has been linked to increased tumor growth, metastasis, and drug resistance. Moreover, through direct and/or indirect effects on immune cells, an abnormal increase in NETs benefits immune exclusion and inhibits T-cell mediated antitumor immune responses. In this review, we summarize the recent but rapid progress in understanding the pivotal roles of NETs in tumor and anti-tumor immunity, highlighting the most relevant challenges in the field. We believe that NETs may be a promising therapeutic target for tumor immunotherapy.
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Affiliation(s)
- Meina Yan
- Department of Laboratory Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, China
- *Correspondence: Meina Yan, ;
| | - Yifeng Gu
- Department of Laboratory Medicine, Tumor Hospital Affiliated to Nantong University, Nantong, Jiangsu, China
| | - Hongxia Sun
- Department of Gynecology and Obstetrics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, China
| | - Qinghong Ge
- Department of Laboratory Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, China
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