Mass Spectrometry Analysis of Pseudomonas aeruginosa Treated with Azithromycin.

Mass Spectrometry Analysis of Pseudomonas aeruginosa Treated with Azithromycin.
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DOI:
10.1007/s13361-015-1101-6
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发表时间:
2015-06
影响因子:
3.2
通讯作者:
Dorrestein, Pieter C.
Dorrestein, Pieter C.
中科院分区:
化学3区
文献类型:
--
作者:
Phelan, Vanessa V.;Fang, Jinshu;Dorrestein, Pieter C.

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In microbiology, changes in specialized metabolite production (cell-to-cell signaling metabolites, virulence factors and natural products) are measured using phenotypic assays. However, advances in mass spectrometry based techniques including imaging mass spectrometry (IMS) now allow researchers to directly visualize the production of specialized metabolites from microbial colony biofilms. In this study, a combination of IMS and liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used to visualize the effect of the macrolide antibiotic azithromycin (AZM) on colony biofilms of Pseudomonas aeruginosa. While previous research suggested that AZM may inhibit cell-to-cell signaling of P. aeruginosa and thereby reducing pathogenicity, we observed no clear decrease in specialized metabolite production.
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