Discovery of a quorum sensing modulator pharmacophore by 3D small-molecule microarray screening
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Discovery of a quorum sensing modulator pharmacophore by 3D small-molecule microarray screening. / Marsden, David M; Nicholson, Rebecca L; Skindersoe, Mette E; Galloway, Warren R J D; Sore, Hannah F; Givskov, Michael; Salmond, George P C; Ladlow, Mark; Welch, Martin; Spring, David R.
In: Organic & Biomolecular Chemistry, Vol. 8, No. 23, 07.12.2010, p. 5313-23.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Discovery of a quorum sensing modulator pharmacophore by 3D small-molecule microarray screening
AU - Marsden, David M
AU - Nicholson, Rebecca L
AU - Skindersoe, Mette E
AU - Galloway, Warren R J D
AU - Sore, Hannah F
AU - Givskov, Michael
AU - Salmond, George P C
AU - Ladlow, Mark
AU - Welch, Martin
AU - Spring, David R
PY - 2010/12/7
Y1 - 2010/12/7
N2 - The screening of large arrays of drug-like small-molecules was traditionally a time consuming and resource intensive task. New methodology developed within our laboratories provides an attractive low cost, 3D microarray-assisted screening platform that could be used to rapidly assay thousands of compounds. As a proof-of-principle the platform was exploited to screen a number of quorum sensing analogs. Quorum sensing is used by bacterium to initiate and spread infection; in this context its modulation may have significant clinical value. 3D microarray slides were probed with fluorescently labeled ligand-binding domains of the LuxR homolog CarR from Erwinia carotovora subsp. carotovora. The 3D microarray platform was used to discover the biologically active chloro-pyridine pharmacophore, which was validated using a fluorometric ligand binding assay and ITC. Analogs containing the chloro-pyridine pharmacophore were found to be potent inhibitors of N-acyl-homoserine-lactone (AHL) mediated quorum sensing phenotypes in Serratia (IC(50) = ~5 µM) and Pseudomonas aeruginosa (IC(50) = 10-20 µM).
AB - The screening of large arrays of drug-like small-molecules was traditionally a time consuming and resource intensive task. New methodology developed within our laboratories provides an attractive low cost, 3D microarray-assisted screening platform that could be used to rapidly assay thousands of compounds. As a proof-of-principle the platform was exploited to screen a number of quorum sensing analogs. Quorum sensing is used by bacterium to initiate and spread infection; in this context its modulation may have significant clinical value. 3D microarray slides were probed with fluorescently labeled ligand-binding domains of the LuxR homolog CarR from Erwinia carotovora subsp. carotovora. The 3D microarray platform was used to discover the biologically active chloro-pyridine pharmacophore, which was validated using a fluorometric ligand binding assay and ITC. Analogs containing the chloro-pyridine pharmacophore were found to be potent inhibitors of N-acyl-homoserine-lactone (AHL) mediated quorum sensing phenotypes in Serratia (IC(50) = ~5 µM) and Pseudomonas aeruginosa (IC(50) = 10-20 µM).
KW - Molecular Structure
KW - Pectobacterium carotovorum
KW - Quorum Sensing
KW - Small Molecule Libraries
U2 - 10.1039/c0ob00300j
DO - 10.1039/c0ob00300j
M3 - Journal article
C2 - 20886127
VL - 8
SP - 5313
EP - 5323
JO - Organic & Biomolecular Chemistry
JF - Organic & Biomolecular Chemistry
SN - 1470-4358
IS - 23
ER -
ID: 33952311