Zusammenfassung
Die mikrobiologische Grundlagenforschung benötigt geeignete Modellsysteme, um infektionsbiologische Fragestellungen in sinnvoller Weise bearbeiten zu können. Zum gegenwärtigen Zeitpunkt erfolgen solche Infektionsstudien meist im Rahmen von Tierversuchen, was aus ethischen Gründen aber umstritten ist. Eine mögliche Alternative, gerade für lokalisierte Infektionen, bieten Modelle auf der Basis von in vitro rekonstituiertem humanem Epithel oder rekonstituierter humaner Epidermis (RHE). In den letzten Jahren wurden diese Modellsysteme erfolgreich zur Evaluierung der Wirksamkeit topischer Antiinfektiva, zur Charakterisierung von fungalen Virulenzfaktoren und zur Beschreibung der Immunantwort bei lokalisierten Candida-albicans-Infektionen eingesetzt. Erst kürzlich wurden diese Modelle um weitere infektionsrelevante Immunzellen wie Lymphozyten, polymorphkernige Leukozyten, Mastzellen oder dendritische Zellen erweitert um deren Einfluss auf den Infektionslauf und die Interaktion zwischen Hautbarrieren und akzessorischen Immunzellen zu charakterisieren. Obgleich für RHE-Modelle die größte Erfahrung bei Candida-albicans-Infektionen besteht, können solche Modellsysteme auch für Infektionen mit anderen Pilzen oder auch Bakterien eingesetzt werden.
Abstract
Basic research on the biology and immunology of microbial infection requires appropriate model systems. Currently most such studies involve animal studies which are a focus of ethical controversy. Possible alternatives, especially for localized infections, are provided by models using in vitro reconstituted human epithelium or epidermis (RHE). In recent years, these model systems have been successfully established to evaluate the effectiveness of topical anti-infectives, to characterize the role of fungal virulence factors, and to study the immune responses during localized Candida albicans infections. Most recently, these models have been supplemented with immune cells such as lymphocytes, polymorphonuclear leukocytes, mast cells or dendritic cells, to study their role during the course of infection and to characterize the interaction between the skin barrier and accessory immune cells. Although the most experience is with Candida albicans RHE infections, such model systems can also be used to study infections with other fungi or bacteria.
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Schaller, M., Zakikhany, K., Weindl, G. et al. Charakterisierung der Interaktion zwischen Candida albicans und Wirtszellen. Hautarzt 59, 964–970 (2008). https://doi.org/10.1007/s00105-008-1549-4
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DOI: https://doi.org/10.1007/s00105-008-1549-4