CcpA- and Shm2-Pulsed Myeloid Dendritic Cells Induce T-Cell Activation and Enhance the Neutrophilic Oxidative Burst Response to Aspergillus fumigatus
Page L, Wallstabe J, Lother J, Bauser M, Kniemeyer O, Strobel L, Voltersen V, Teutschbein J, Hortschansky P, Morton CO, Brakhage AA, Topp M, Einsele H, Wurster S, Loeffler J (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 12
Article Number: 659752
DOI: 10.3389/fimmu.2021.659752
Abstract
Aspergillus fumigatus causes life-threatening opportunistic infections in immunocompromised patients. As therapeutic outcomes of invasive aspergillosis (IA) are often unsatisfactory, the development of targeted immunotherapy remains an important goal. Linking the innate and adaptive immune system, dendritic cells are pivotal in anti-Aspergillus defense and have generated interest as a potential immunotherapeutic approach in IA. While monocyte-derived dendritic cells (moDCs) require ex vivo differentiation, antigen-pulsed primary myeloid dendritic cells (mDCs) may present a more immediate platform for immunotherapy. To that end, we compared the response patterns and cellular interactions of human primary mDCs and moDCs pulsed with an A. fumigatus lysate and two A. fumigatus proteins (CcpA and Shm2) in a serum-free, GMP-compliant medium. CcpA and Shm2 triggered significant upregulation of maturation markers in mDCs and, to a lesser extent, moDCs. Furthermore, both A. fumigatus proteins elicited the release of an array of key pro-inflammatory cytokines including TNF-α, IL-1β, IL-6, IL-8, and CCL3 from both DC populations. Compared to moDCs, CcpA- and Shm2-pulsed mDCs exhibited greater expression of MHC class II antigens and stimulated stronger proliferation and IFN-γ secretion from autologous CD4+ and CD8+ T-cells. Moreover, supernatants of CcpA- and Shm2-pulsed mDCs significantly enhanced the oxidative burst in allogeneic neutrophils co-cultured with A. fumigatus germ tubes. Taken together, our in vitro data suggest that ex vivo CcpA- and Shm2-pulsed primary mDCs have the potential to be developed into an immunotherapeutic approach to tackle IA.
Involved external institutions
Universitätsklinikum Würzburg
Germany (DE)
Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie (Hans-Knöll-Institut (HKI)) / Leibniz Institute for Natural Product Research and Infection Biology
Germany (DE)
University of Western Sydney
Australia (AU)
University of Texas MD Anderson Cancer Center
United States (USA) (US)
Germany (DE)
Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie (Hans-Knöll-Institut (HKI)) / Leibniz Institute for Natural Product Research and Infection Biology
Germany (DE)
University of Western Sydney
Australia (AU)
University of Texas MD Anderson Cancer Center
United States (USA) (US)
How to cite
APA:
Page, L., Wallstabe, J., Lother, J., Bauser, M., Kniemeyer, O., Strobel, L.,... Loeffler, J. (2021). CcpA- and Shm2-Pulsed Myeloid Dendritic Cells Induce T-Cell Activation and Enhance the Neutrophilic Oxidative Burst Response to Aspergillus fumigatus. Frontiers in Immunology, 12. https://doi.org/10.3389/fimmu.2021.659752
MLA:
Page, Lukas, et al. "CcpA- and Shm2-Pulsed Myeloid Dendritic Cells Induce T-Cell Activation and Enhance the Neutrophilic Oxidative Burst Response to Aspergillus fumigatus." Frontiers in Immunology 12 (2021).
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