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Nasiri-Jahrodi A, Barati M, Namdar Ahmadabad H, Badali H, Morovati H. A comprehensive review on the role of T cell subsets and CAR-T cell therapy in Aspergillus fumigatus infection. Hum Immunol 2024; 85:110763. [PMID: 38350795 DOI: 10.1016/j.humimm.2024.110763] [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: 09/29/2023] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 02/15/2024]
Abstract
Understanding the immune response to Aspergillus fumigatus, a common cause of invasive fungal infections (IFIs) in immunocompromised individuals, is critical for developing effective treatments. Tcells play a critical role in the immune response to A. fumigatus, with different subsets having distinct functions. Th1 cells are important for controlling fungal growth, while Th2 cells can exacerbate infection. Th17 cells promote the clearance of fungi indirectly by stimulating the production of various antimicrobial peptides from epithelial cells and directly by recruiting and activating neutrophils. Regulatory T cells have varied functions in A.fumigatus infection. They expand after exposure to A. fumigatus conidia and prevent organ injury and fungal sepsis by downregulating inflammation and inhibiting neutrophils or suppressing Th17 cells. Regulatory T cells also block Th2 cells to stop aspergillosis allergies. Immunotherapy with CAR T cells is a promising treatment for fungal infections, including A. fumigatus infections, especially in immunocompromised individuals. However, further research is needed to fully understand the mechanisms underlying the immune response to A. fumigatus and to develop effective immunotherapies with CAR-T cells for this infection. This literature review explores the role of Tcell subsets in A.fumigatus infection, and the effects of CAR-T cell therapy on this fungal infection.
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Affiliation(s)
- Abozar Nasiri-Jahrodi
- Department of Pathobiology and Medical Laboratory Sciences, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mehdi Barati
- Department of Pathobiology and Medical Laboratory Sciences, North Khorasan University of Medical Sciences, Bojnurd, Iran.
| | - Hasan Namdar Ahmadabad
- Vector-borne Diseases Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran.
| | - Hamid Badali
- Department of Molecular Microbiology & Immunology, South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX, USA
| | - Hamid Morovati
- Department of Medical Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Nieland S, Barig S, Salzmann J, Gehrau F, Zamani AI, Richter A, Ibrahim J, Gräser Y, Ng CL, Stahmann K. Aspergillus fumigatus AR04 obeys Arrhenius' rule in cultivation temperature shifts from 30 to 40°C. Microb Biotechnol 2021; 14:1422-1432. [PMID: 33421319 PMCID: PMC8313250 DOI: 10.1111/1751-7915.13739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/11/2020] [Accepted: 12/11/2020] [Indexed: 01/01/2023] Open
Abstract
To set a benchmark in fungal growth rate, a differential analysis of prototrophic Aspergillus fumigatus AR04 with three ascomycetes applied in > 103 t year-1 scale was performed, i.e. Ashbya gosspyii (riboflavin), Aspergillus niger (citric acid) and Aspergillus oryzae (food-processing). While radial colony growth decreased 0.5-fold when A. gossypii was cultivated at 40°C instead of 28°C, A. fumigatus AR04 responded with 1.7-fold faster hyphal growth. A. niger and A. oryzae formed colonies at 40°C, but not at 43°C. Moreover, all A. fumigatus strains tested grew even at 49°C. In chemostat experiments, A. fumigatus AR04 reached steady state at a dilution rate of 0.7 h-1 at 40°C, 120% more than reported for A. gossypii at 28°C. To study mycelial growth rates under unlimited conditions, carbon dioxide increase rates were calculated from concentrations detected online in the exhaust of batch fermentations for 3 h only. All rates calculated suggest that A. fumigatus AR04 approximates Arrhenius' rule when comparing short cultivations at 30°C with those at 40°C. Linearization of the exponential phase and comparison of the slopes revealed an increase to 192% by the 10°C up-shift.
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Affiliation(s)
- Susanne Nieland
- Institute of BiotechnologyBrandenburg University of Technology Cottbus ‐ SenftenbergUniversitätsplatz 1SenftenbergD‐01958Germany
| | - Susann Barig
- Institute of BiotechnologyBrandenburg University of Technology Cottbus ‐ SenftenbergUniversitätsplatz 1SenftenbergD‐01958Germany
| | - Julian Salzmann
- Institute of BiotechnologyBrandenburg University of Technology Cottbus ‐ SenftenbergUniversitätsplatz 1SenftenbergD‐01958Germany
| | - Frauke Gehrau
- Institute of BiotechnologyBrandenburg University of Technology Cottbus ‐ SenftenbergUniversitätsplatz 1SenftenbergD‐01958Germany
| | - Arief Izzairy Zamani
- Institute of Systems BiologyUniversiti Kebangsaan MalaysiaBangiSelangor43600 UKMMalaysia
| | - Annabell Richter
- Institute of BiotechnologyBrandenburg University of Technology Cottbus ‐ SenftenbergUniversitätsplatz 1SenftenbergD‐01958Germany
| | - Julia Ibrahim
- Sime Darby Technology CentreUPM‐MTDC Technology Centre IIILebuh Silikon1st Floor Block BUPM 43400SerdangSelangorMalaysia
| | - Yvonne Gräser
- Institute of Microbiology and ImmunologyCharité ‐ Universitätsmedizin BerlinCorporate Member of Freie Universität BerlinHumboldt‐Universität zu BerlinBerlinGermany
- Berlin Institute of HealthHindenburgdamm 30BerlinD‐12203Germany
| | - Chyan Leong Ng
- Institute of Systems BiologyUniversiti Kebangsaan MalaysiaBangiSelangor43600 UKMMalaysia
| | - Klaus‐Peter Stahmann
- Institute of BiotechnologyBrandenburg University of Technology Cottbus ‐ SenftenbergUniversitätsplatz 1SenftenbergD‐01958Germany
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Ye Y, Chen Y, Sun J, Zhang H, Meng Y, Li W, Wang W. Hyperglycemia suppresses the regulatory effect of hypoxia-inducible factor-1α in pulmonary Aspergillus fumigatus infection. Pathog Dis 2021; 78:5873010. [PMID: 32678442 DOI: 10.1093/femspd/ftaa038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 07/16/2020] [Indexed: 12/27/2022] Open
Abstract
Aspergillus fumigatus is one of the most common fungal infections involved in the pulmonary diseases. Hypoxia-inducible factor-1α (HIF-1α) is important for antifungal immunity. Diabetes is a risk factor of pulmonary A. fumigatus infection and could affect the expression of HIF-1α. The aim of this investigation was to evaluate the role of HIF-1α in pulmonary A. fumigatus infection in diabetes. In murine model, we found diabetic mice had aggravated pulmonary A. fumigatus infection and declined expression of HIF-1α following pulmonary A. fumigatus infection. And these changes could be corrected by dimethyloxalylglycine (DMOG), the agonist of HIF-1α. In cell experiment, after A. fumigatus stimulation, hyperglycemic state was with a decreased HIF-1α expression and increased NLRP3/IL-1β signal pathway. The percentages of Th1 and Treg cells decreased, while percentages of Th2 and Th17 increased in hyperglycemic group. DMOG suppressed A. fumigatus-stimulated NLRP3 and IL-1β expressions in hyperglycemic group and corrected Th and Treg cells differentiation. These regulatory effects of DMOG could be dampened by activating of NLRP3. These data indicated that hyperglycemia suppressed the regulatory effect of HIF-1α in pulmonary A. fumigatus infection, which can affect Th and Treg cells differentiation by regulating the NLRP3/IL-1β signal pathway.
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Affiliation(s)
- Yao Ye
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Yu Chen
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, 110000, China
| | - Jianjun Sun
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Hanyin Zhang
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Yanling Meng
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Wenyang Li
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Wei Wang
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
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Liu Y, Han Y, Dong H, Wei X, Shi D, Li Y. Ca 2+-Mediated Surface Polydopamine Engineering to Program Dendritic Cell Maturation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4163-4173. [PMID: 31891476 DOI: 10.1021/acsami.9b20997] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Engineering of cell surfaces holds promise in manipulating cellular activities in a physicochemical route as a complement to the biological approach. Mediated by Ca2+, a quick and convenient yet cytocompatible method is used to achieve surface engineering, by which polydopamine nanostructures can be in situ grown onto dendritic cell (DC) surfaces within 10 min. Ca2+, as the physical bridge between the negative cell surface and polydopamine, avoids the direct chemical polymerization of polydopamine onto the cell surface, critically important to maintain the cell viability. As a proof of concept in potential applications, this cell surface engineering shows a good control toward DC maturation. Upon surface polydopamine engineering, bone-marrow-derived DC exhibits a unique bidirectional control of maturation. The polydopamine structure enables effective suppression of DC activation by acting as an efficient scavenger of reactive oxygen species, a key signal during maturation. Conversely, an 808 nm laser irradiation can remotely relieve the suppressed state and effectively activate DC maturation by the photoheat effect of polydopamine (39 °C). The work provides an easily implemented, straightforward approach to achieve cell surface engineering, through which the DC maturation can be controlled.
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Affiliation(s)
- Yiqiong Liu
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
| | - Yi Han
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
| | - Haiqing Dong
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
| | - Xunbin Wei
- Med-X Research Institute and School of Biomedical Engineering , Shanghai Jiao Tong University , Shanghai 200030 , China
| | - Donglu Shi
- The Materials Science & Engineering Program, Department of Mechanical & Materials Engineering, College of Engineering & Applied Science , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| | - Yongyong Li
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
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Weiss E, Ziegler S, Fliesser M, Schmitt AL, Hünniger K, Kurzai O, Morton CO, Einsele H, Loeffler J. First Insights in NK-DC Cross-Talk and the Importance of Soluble Factors During Infection With Aspergillus fumigatus. Front Cell Infect Microbiol 2018; 8:288. [PMID: 30177958 PMCID: PMC6110135 DOI: 10.3389/fcimb.2018.00288] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 07/30/2018] [Indexed: 01/12/2023] Open
Abstract
Invasive aspergillosis (IA) is an infectious disease caused by the fungal pathogen Aspergillus fumigatus that mainly affects immunocompromised hosts. To investigate immune cell cross-talk during infection with A. fumigatus, we co-cultured natural killer (NK) cells and dendritic cells (DC) after stimulation with whole fungal structures, components of the fungal cell wall, fungal lysate or ligands for distinct fungal receptors. Both cell types showed activation after stimulation with fungal components and were able to transfer activation signals to the counterpart not stimulated cell type. Interestingly, DCs recognized a broader spectrum of fungal components and thereby initiated NK cell activation when those did not recognize fungal structures. These experiments highlighted the supportive function of DCs in NK cell activation. Furthermore, we focused on soluble DC mediated NK cell activation and showed that DCs stimulated with the TLR2/Dectin-1 ligand zymosan could maximally stimulate the expression of CD69 on NK cells. Thus, we investigated the influence of both receptors for zymosan, Dectin-1 and TLR2, which are highly expressed on DCs but show only minimal expression on NK cells. Specific focus was laid on the question whether Dectin-1 or TLR2 signaling in DCs is important for the secretion of soluble factors leading to NK cell activation. Our results show that Dectin-1 and TLR2 are negligible for NK cell activation. We conclude that besides Dectin-1 and TLR2 other receptors on DCs are able to compensate for the missing signal.
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Affiliation(s)
- Esther Weiss
- Department of Internal Medicine II, University Hospital Wuerzburg, WÜ4i, Wuerzburg, Germany
| | - Sabrina Ziegler
- Department of Internal Medicine II, University Hospital Wuerzburg, WÜ4i, Wuerzburg, Germany
| | - Mirjam Fliesser
- Department of Internal Medicine II, University Hospital Wuerzburg, WÜ4i, Wuerzburg, Germany
| | - Anna-Lena Schmitt
- Department of Internal Medicine II, University Hospital Wuerzburg, WÜ4i, Wuerzburg, Germany
| | - Kerstin Hünniger
- Leibniz Institute for Natural Product Research and Infection Biology-Hans Knoell Institute, Jena, Germany.,Department of Microbiology and Mycology, Institute for Hygiene and Microbiology, Julius-Maximilian University, Wuerzburg, Germany
| | - Oliver Kurzai
- Leibniz Institute for Natural Product Research and Infection Biology-Hans Knoell Institute, Jena, Germany.,Department of Microbiology and Mycology, Institute for Hygiene and Microbiology, Julius-Maximilian University, Wuerzburg, Germany
| | | | - Hermann Einsele
- Department of Internal Medicine II, University Hospital Wuerzburg, WÜ4i, Wuerzburg, Germany
| | - Juergen Loeffler
- Department of Internal Medicine II, University Hospital Wuerzburg, WÜ4i, Wuerzburg, Germany
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Ziegler S, Weiss E, Schmitt AL, Schlegel J, Burgert A, Terpitz U, Sauer M, Moretta L, Sivori S, Leonhardt I, Kurzai O, Einsele H, Loeffler J. CD56 Is a Pathogen Recognition Receptor on Human Natural Killer Cells. Sci Rep 2017; 7:6138. [PMID: 28733594 PMCID: PMC5522490 DOI: 10.1038/s41598-017-06238-4] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 06/12/2017] [Indexed: 11/09/2022] Open
Abstract
Aspergillus (A.) fumigatus is an opportunistic fungal mold inducing invasive aspergillosis (IA) in immunocompromised patients. Although antifungal activity of human natural killer (NK) cells was shown in previous studies, the underlying cellular mechanisms and pathogen recognition receptors (PRRs) are still unknown. Using flow cytometry we were able to show that the fluorescence positivity of the surface receptor CD56 significantly decreased upon fungal contact. To visualize the interaction site of NK cells and A. fumigatus we used SEM, CLSM and dSTORM techniques, which clearly demonstrated that NK cells directly interact with A. fumigatus via CD56 and that CD56 is re-organized and accumulated at this interaction site time-dependently. The inhibition of the cytoskeleton showed that the receptor re-organization was an active process dependent on actin re-arrangements. Furthermore, we could show that CD56 plays a role in the fungus mediated NK cell activation, since blocking of CD56 surface receptor reduced fungal mediated NK cell activation and reduced cytokine secretion. These results confirmed the direct interaction of NK cells and A. fumigatus, leading to the conclusion that CD56 is a pathogen recognition receptor. These findings give new insights into the functional role of CD56 in the pathogen recognition during the innate immune response.
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Affiliation(s)
- Sabrina Ziegler
- Department of Internal Medicine II, WÜ4i, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Esther Weiss
- Department of Internal Medicine II, WÜ4i, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Anna-Lena Schmitt
- Department of Internal Medicine II, WÜ4i, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Jan Schlegel
- Department of Biotechnology and Biophysics, Biocenter, Julius-Maximilian-University Wuerzburg, Wuerzburg, Germany
| | - Anne Burgert
- Department of Biotechnology and Biophysics, Biocenter, Julius-Maximilian-University Wuerzburg, Wuerzburg, Germany
| | - Ulrich Terpitz
- Department of Biotechnology and Biophysics, Biocenter, Julius-Maximilian-University Wuerzburg, Wuerzburg, Germany
| | - Markus Sauer
- Department of Biotechnology and Biophysics, Biocenter, Julius-Maximilian-University Wuerzburg, Wuerzburg, Germany
| | - Lorenzo Moretta
- Immunology Area, Pediatric Hospital Bambino Gesù, Rome, Italy
| | - Simona Sivori
- Dipartimento di Medicina Sperimentale (DIMES) and Centro di Eccellenza per la Ricerca Biomedica, Universita' di Genova, Genova, Italy
| | - Ines Leonhardt
- Septomics Research Centre, Friedrich Schiller University and Leibniz Institute for Natural Product Research and Infection Biology-Hans Knoell Institute, Jena, Germany
| | - Oliver Kurzai
- Septomics Research Centre, Friedrich Schiller University and Leibniz Institute for Natural Product Research and Infection Biology-Hans Knoell Institute, Jena, Germany
| | - Hermann Einsele
- Department of Internal Medicine II, WÜ4i, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Juergen Loeffler
- Department of Internal Medicine II, WÜ4i, University Hospital Wuerzburg, Wuerzburg, Germany.
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Knippertz I, Deinzer A, Dörrie J, Schaft N, Nettelbeck DM, Steinkasserer A. Transcriptional Targeting of Mature Dendritic Cells with Adenoviral Vectors via a Modular Promoter System for Antigen Expression and Functional Manipulation. J Immunol Res 2016; 2016:6078473. [PMID: 27446966 PMCID: PMC4942663 DOI: 10.1155/2016/6078473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/29/2016] [Indexed: 02/06/2023] Open
Abstract
To specifically target dendritic cells (DCs) to simultaneously express different therapeutic transgenes for inducing immune responses against tumors, we used a combined promoter system of adenoviral vectors. We selected a 216 bp short Hsp70B' core promoter induced by a mutated, constitutively active heat shock factor (mHSF) 1 to drive strong gene expression of therapeutic transgenes MelanA, BclxL, and IL-12p70 in HeLa cells, as well as in mature DCs (mDCs). As this involves overexpressing mHSF1, we first evaluated the resulting effects on DCs regarding upregulation of heat shock proteins and maturation markers, toxicity, cytokine profile, and capacity to induce antigen-specific CD8(+) T cells. Second, we generated the two-vector-based "modular promoter" system, where one vector contains the mHSF1 under the control of the human CD83 promoter, which is specifically active only in DCs and after maturation. mHSF1, in turn, activates the Hsp70B' core promotor-driven expression of transgenes MelanA and IL-12p70 in the DC-like cell line XS52 and in human mature and hence immunogenic DCs, but not in tolerogenic immature DCs. These in vitro experiments provide the basis for an in vivo targeting of mature DCs for the expression of multiple transgenes. Therefore, this modular promoter system represents a promising tool for future DC-based immunotherapies in vivo.
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Affiliation(s)
- Ilka Knippertz
- Department of Immune Modulation at the Department of Dermatology, Universitätsklinikum Erlangen, Hartmannstrasse 14, 91052 Erlangen, Germany
| | - Andrea Deinzer
- Department of Immune Modulation at the Department of Dermatology, Universitätsklinikum Erlangen, Hartmannstrasse 14, 91052 Erlangen, Germany
| | - Jan Dörrie
- Department of Dermatology, Universitätsklinikum Erlangen, Hartmannstrasse 14, 91052 Erlangen, Germany
| | - Niels Schaft
- Department of Dermatology, Universitätsklinikum Erlangen, Hartmannstrasse 14, 91052 Erlangen, Germany
| | - Dirk M. Nettelbeck
- German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Alexander Steinkasserer
- Department of Immune Modulation at the Department of Dermatology, Universitätsklinikum Erlangen, Hartmannstrasse 14, 91052 Erlangen, Germany
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González Plaza JJ, Hulak N, Zhumadilov Z, Akilzhanova A. Fever as an important resource for infectious diseases research. Intractable Rare Dis Res 2016; 5:97-102. [PMID: 27195192 PMCID: PMC4869589 DOI: 10.5582/irdr.2016.01009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/26/2016] [Accepted: 04/04/2016] [Indexed: 02/07/2023] Open
Abstract
Fever or pyrexia is a process where normal body temperature is raised over homeostasis conditions. Although many effects of fever over the immune system have been known for a long time, it has not been until recent studies when these effects have been evaluated in several infection processes. Results have been promising, as they have reported new ways of regulation, especially in RNA molecules. In light of these new studies, it seems important to start to evaluate the effects of pyrexia in current research efforts in host-pathogen interactions. Viruses and bacteria are responsible for different types of infectious diseases, and while it is of paramount importance to understand the mechanisms of infection, potential effects of fever on this process may have been overlooked. This is especially relevant because during the course of many infectious diseases the organism develops fever. Due to the lack of specific treatments for many of those afflictions, experimental evaluation in fever-like conditions can potentially bring new insights into the infection process and can ultimately help to develop treatments. The aim of this review is to present evidence that the temperature increase during fever affects the way the infection takes place, for both the pathogen and the host.
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Affiliation(s)
- Juan José González Plaza
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Zagreb, Croatia
- Research Department, University Hospital for Infectious Diseases “Dr. Fran Mihaljević”, Zagreb, Croatia
| | - Nataša Hulak
- Department of Microbiology, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
| | - Zhaxybay Zhumadilov
- Laboratory of Genomic and Personalized Medicine, Center for Life Sciences, PI “National Laboratory Astana”, AOE “Nazarbayev University”, Astana, Kazakhstan
| | - Ainur Akilzhanova
- Laboratory of Genomic and Personalized Medicine, Center for Life Sciences, PI “National Laboratory Astana”, AOE “Nazarbayev University”, Astana, Kazakhstan
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Fliesser M, Wallstein M, Kurzai O, Einsele H, Löffler J. Hypoxia attenuates anti-Aspergillus fumigatusimmune responses initiated by human dendritic cells. Mycoses 2016; 59:503-8. [DOI: 10.1111/myc.12498] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 02/25/2016] [Accepted: 02/25/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Mirjam Fliesser
- Medical Clinic and Polyclinic II; University Hospital; Wuerzburg Germany
| | - Marion Wallstein
- Medical Clinic and Polyclinic II; University Hospital; Wuerzburg Germany
| | - Oliver Kurzai
- Septomics Research Centre; Friedrich Schiller University and Leibniz Institute for Natural Product Research and Infection Biology-Hans Knoell Institute; Jena Germany
| | - Hermann Einsele
- Medical Clinic and Polyclinic II; University Hospital; Wuerzburg Germany
| | - Jürgen Löffler
- Medical Clinic and Polyclinic II; University Hospital; Wuerzburg Germany
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Fliesser M, Morton CO, Bonin M, Ebel F, Hünniger K, Kurzai O, Einsele H, Löffler J. Hypoxia-inducible factor 1α modulates metabolic activity and cytokine release in anti-Aspergillus fumigatus immune responses initiated by human dendritic cells. Int J Med Microbiol 2015; 305:865-73. [PMID: 26387061 DOI: 10.1016/j.ijmm.2015.08.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/17/2015] [Accepted: 08/27/2015] [Indexed: 12/31/2022] Open
Abstract
The mold Aspergillus fumigatus causes life-threatening infections in immunocompromised patients. Over the past decade, new findings in research have improved our understanding of A. fumigatus-host interactions, including the recent identification of myeloid-expressed hypoxia-inducible factor 1α (HIF-1α) as a relevant immune-modulating transcription factor and potential therapeutic target in anti-fungal defense. However, the function of HIF-1α signaling for human anti-A. fumigatus immunity is still poorly understood, including its role in dendritic cells (DCs), which are important regulators of anti-fungal immunity. This study investigated the functional relevance of HIF-1α in the anti-A. fumigatus immune response initiated by human DCs. Hypoxic cell culture conditions were included because hypoxic microenvironments occur during A. fumigatus infections and may influence the host immune response. HIF-1α was stabilized in DCs following stimulation with A. fumigatus under normoxic and hypoxic conditions. This stabilization was partially dependent on dectin-1, the major receptor for A. fumigatus on human DCs. Using siRNA-based HIF-1α silencing combined with genome-wide transcriptional analysis, a modulatory effect of HIF-1α on the anti-fungal immune response of human DCs was identified. Specifically, the difference in the transcriptomes of HIF-1α silenced and non-silenced DCs indicated that HIF-1α contributes to DC metabolism and cytokine release in response to A. fumigatus under normoxic as well as hypoxic conditions. This was confirmed by further down-stream analyses that included metabolite analysis and cytokine profiling of a time-course infection experiment. Thereby, this study revealed a so far undescribed functional relevance of HIF-1α in human DC responses against A. fumigatus.
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Affiliation(s)
- Mirjam Fliesser
- Medical Clinic and Polyclinic II, University Hospital, 97080 Wuerzburg, Germany
| | - Charles Oliver Morton
- University of Western Sydney, School of Science and Health, Campbelltown, NSW 2560, Australia
| | - Michael Bonin
- Microarray Facility, University Hospital, 72076 Tuebingen, Germany
| | - Frank Ebel
- Institute for Infectious Diseases and Zoonoses, Ludwigs Maximilians University, 80336 Munich, Germany
| | - Kerstin Hünniger
- Septomics Research Centre, Friedrich Schiller University and Leibniz Institute for Natural Product Research and Infection Biology - Hans Knoell Institute, 07745 Jena, Germany
| | - Oliver Kurzai
- Septomics Research Centre, Friedrich Schiller University and Leibniz Institute for Natural Product Research and Infection Biology - Hans Knoell Institute, 07745 Jena, Germany
| | - Hermann Einsele
- Medical Clinic and Polyclinic II, University Hospital, 97080 Wuerzburg, Germany
| | - Jürgen Löffler
- Medical Clinic and Polyclinic II, University Hospital, 97080 Wuerzburg, Germany.
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Mueller-Leisse J, Brueggemann S, Bouzani M, Schmitt AL, Einsele H, Loeffler J. Polymorphonuclear neutrophils and granulocytic myeloid-derived suppressor cells inhibit natural killer cell activity towardAspergillus fumigatus. Med Mycol 2015; 53:622-9. [DOI: 10.1093/mmy/myv030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 03/28/2015] [Indexed: 12/16/2022] Open
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