Small-molecule inhibitors target Escherichia coli amyloid biogenesis and biofilm formation.

Small-molecule inhibitors target Escherichia coli amyloid biogenesis and biofilm formation.
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DOI:
10.1038/nchembio.242
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发表时间:
2009-12
影响因子:
14.8
通讯作者:
Hultgren, Scott J.
Hultgren, Scott J.
中科院分区:
生物学1区
文献类型:
--
作者:
Cegelski, Lynette;Pinkner, Jerome S.;Hammer, Neal D.;Cusumano, Corinne K.;Hung, Chia S.;Chorell, Erik;Aberg, Veronica;Walker, Jennifer N.;Seed, Patrick C.;Almqvist, Fredrik;Chapman, Matthew R.;Hultgren, Scott J.

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Curli are functional extracellular amyloid fibers produced by uropathogenic Escherichia coli (UPEC) and other Enterobacteriaceae. Ring-fused 2-pyridones, such as FN075 and BibC6, inhibited curli biogenesis in UPEC and prevented the in vitro polymerization of the major curli subunit protein CsgA. The curlicides FN075 and BibC6 share a common chemical lineage with other ring-fused 2-pyridones termed pilicides. Pilicides inhibit the assembly of type 1 pili, which are required for pathogenesis during urinary tract infection. Notably, the curlicides retained pilicide activities and inhibited both curli-dependent and type 1–dependent biofilms. Furthermore, pretreatment of UPEC with FN075 significantly attenuated virulence in a mouse model of urinary tract infection. Curli and type 1 pili exhibited exclusive and independent roles in promoting UPEC biofilms, and curli provided a fitness advantage in vivo. Thus, the ability of FN075 to block the biogenesis of both curli and type 1 pili endows unique anti-biofilm and anti-virulence activities on these compounds.
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