Investigating Candida glabrata Urinary Tract Infections (UTIs) in Mice Using Bioluminescence Imaging.
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9 octobre 2021
- doi: 10.3390/jof7100844
- issn: 2309-608X
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info:eu-repo/semantics/altIdentifier/pmid/34682265
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info:eu-repo/semantics/altIdentifier/urn/urn:nbn:ch:serval-BIB_5E410F94279E1
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S. Schrevens et al., « Investigating Candida glabrata Urinary Tract Infections (UTIs) in Mice Using Bioluminescence Imaging. », Serveur académique Lausannois, ID : 10.3390/jof7100844
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Urinary tract infections (UTIs) are quite common and mainly caused by bacteria such as Escherichia coli. However, when patients have urinary catheters, fungal infections comprise up to 15% of these types of infections. Moreover, fungal UTIs have a high mortality, due to rapid spreading of the fungi to the kidneys. Most fungal UTIs are caused by Candida species, among which Candida albicans and Candida glabrata are the most common. C. glabrata is an opportunistic pathogenic yeast, phylogenetically quite close to Saccharomyces cerevisiae. Even though it is commonly isolated from the urinary tract and rapidly acquires resistance to antifungals, its pathogenesis has not been studied extensively in vivo. In vivo studies require high numbers of animals, which can be overcome by the use of non-invasive imaging tools. One such tool, bioluminescence imaging, has been used successfully to study different types of C. albicans infections. For C. glabrata, only biofilms on subcutaneously implanted catheters have been imaged using this tool. In this work, we investigated the progression of C. glabrata UTIs from the bladder to the kidneys and the spleen. Furthermore, we optimized expression of a red-shifted firefly luciferase in C. glabrata for in vivo use. We propose the first animal model using bioluminescence imaging to visualize C. glabrata in mouse tissues. Additionally, this UTI model can be used to monitor antifungal activity in vivo over time.