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Molecular regulation of pseudomonas aeruginosa biofilms

Vestnik Rossiiskoi Akademii Meditsinskikh Nauk, ISSN: 2414-3545, Vol: 73, Issue: 4, Page: 244-251
2018
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Article Description

Nowadays healthcare-associated infections caused Pseudomonas aeruginosa remain actual problem due to P. aeruginosa resistance to a wide range of antimicrobials and its ability to form biofilms that are 1000 times more resistant to antibiotics than free-living (plankton) cultures. P. aeruginosa biofilms forming is regulated by Quorum Sensing (QS) communication system which is controlled by inhibitors (Quorum sensing inhibitors, QSIs). An essential role in stabilization of biofilms belongs to extracellular DNA (eDNA) as a structural polyanionic polymer whereas its genetic function is not applicable. In addition, internal signal molecules c-di-GMP, cascade Gac/Rsm also participate in formation of P. aeruginosa biofilms. A review provides a detailed description of the biofilm molecular regulation by means of QS inhibitors and QS modulators of signaling molecules QS.

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