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  Combined culture and metagenomic analyses reveal significant shifts in the composition of the cutaneous microbiome in psoriasis

Langan, E., Künstner, A., Miodovnik, M., Zillikens, D., Thaçi, D., Baines, J. F., et al. (2019). Combined culture and metagenomic analyses reveal significant shifts in the composition of the cutaneous microbiome in psoriasis. British Journal of Dermatology, 0(0). doi:10.1111/bjd.17989.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-4C65-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-4C66-5
Genre: Journal Article

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Langan_et_al-2019-British_Journal_of_Dermatology.pdf (Publisher version), 1009KB
 
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Langan, E.A.1, Author
Künstner, A., Author
Miodovnik, M., Author
Zillikens, D., Author
Thaçi, D., Author
Baines, John F.1, Author              
Ibrahim, S.M., Author
Solbach, W., Author
Knobloch, J.K., Author
Affiliations:
1Guest Group Evolutionary Genomics, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445638              

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 Abstract: Summary Background The treatment of psoriasis has been revolutionized by the development of biologic therapies. However, the pathogenesis of psoriasis, in particular the role of the cutaneous microbiome, remains incompletely understood. Moreover, skin microbiome studies have relied heavily on 16S rRNA sequencing data in the absence of bacterial culture. Objectives To characterize and compare the cutaneous microbiome in 20 healthy controls and 23 patients with psoriasis using metagenomic analyses and to determine changes in the microbiome during treatment. Methods Swabs from lesional and nonlesional skin from patients with psoriasis, and from controls matched for site and skin microenvironment, were analysed using both 16S rRNA sequencing and traditional culture combined with mass spectrometry (MALDI-TOF) in a prospective study. Results Psoriasis was associated with an increased abundance of Firmicutes and a corresponding reduction in Actinobacteria, most marked in lesional skin, and at least partially reversed during systemic treatment. Shifts in bacterial community composition in lesional sites were reflected in similar changes in culturable bacteria, although changes in the microbiota over repeated swabbing were detectable only with sequencing. The composition of the microbial communities varied by skin site and microenvironment. Prevotella and Staphylococcus were significantly associated with lesional skin, and Anaerococcus and Propionibacterium with nonlesional skin. There were no significant differences in the amount of bacteria cultured from the skin of healthy controls and patients with psoriasis. Conclusions Shifts in the cutaneous microbiome in psoriasis, particularly during treatment, may shed new light on the pathogenesis of the disease and may be clinically exploited to predict treatment response.

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Language(s): eng - English
 Dates: 2019-03-282019-05-122019
 Publication Status: Published in print
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 Identifiers: DOI: 10.1111/bjd.17989
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Title: British Journal of Dermatology
  Other : Br. J. Dermatol.
Source Genre: Journal
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Publ. Info: Oxford [etc.] : Published for the British Association of Dermatologists by Blackwell Scientific Publications [etc.]
Pages: 11 Volume / Issue: 0 (0) Sequence Number: - Start / End Page: - Identifier: ISSN: 0007-0963
CoNE: https://pure.mpg.de/cone/journals/resource/110978978380151