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Transcriptomic analysis of Propionibacterium acnes biofilms in vitro
Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
2016 (English)In: Anaerobe, ISSN 1075-9964, E-ISSN 1095-8274, Vol. 42, 111-118 p.Article in journal (Refereed) Published
Abstract [en]

Propionibacterium acnes is a well-known commensal of the human skin connected to acne vulgaris and joint infections. It is extensively studied in planktonic cultures in the laboratory settings but occurs naturally in biofilms. In this study we have developed an in vitro biofilm model of P. acnes and studied growth features, matrix composition, matrix penetration by fluorescent-labeled antibiotics as well as gene expression. Antibiotic susceptibility of biofilms was studied and could be enhanced by increased glucose concentrations. Biofilm cells were characterized by up-regulated stress-induced genes and up regulation of genes coding for the potential virulence-associated CAMP factors. P. acnes can generate persister cells showing a reversible tolerance to 50 fold MIC of common antibiotics.

Place, publisher, year, edition, pages
2016. Vol. 42, 111-118 p.
Keyword [en]
Propionibacterium acnes, Biofilm, Persisters, RNA seq
National Category
Microbiology
Identifiers
URN: urn:nbn:se:umu:diva-130465DOI: 10.1016/j.anaerobe.2016.10.001ISI: 000390628600021PubMedID: 27725231OAI: oai:DiVA.org:umu-130465DiVA: diva2:1068033
Available from: 2017-01-24 Created: 2017-01-20 Last updated: 2017-01-24Bibliographically approved

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