Biology 2013, 2(3), 1135-1149; doi:10.3390/biology2031135
Article

Effect of Aminophenyl and Aminothiahexyl α-D-Glycosides of the Manno-, Gluco-, and Galacto-Series on Type 1 Fimbriae-Mediated Adhesion of Escherichia coli

Otto Diels Institute of Organic Chemistry, Christiana Albertina University of Kiel, Otto-Hahn-Platz 3-4, 24098 Kiel, Germany
* Author to whom correspondence should be addressed.
Received: 15 July 2013; in revised form: 17 August 2013 / Accepted: 28 August 2013 / Published: 3 September 2013
(This article belongs to the Special Issue Bacterial Adhesion)
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Abstract: Adhesion of bacteria to the glycosylated surface of their target cells is typically mediated by fimbrial lectins, exposed on the bacterial surface. Among the best-investigated and most important fimbriae are type 1 fimbriae, for which α-d-mannopyranoside-specificity has been described. This carbohydrate specificity is mediated by the type 1 fimbrial lectin FimH. In this account, we have employed four different set-ups to assay type 1 fimbriae-mediated bacterial adhesion, including tailor-made glycoarrays. The focus of our study was on testing FimH specificity with regard to the glycone part of a glycosidic ligand by testing a series of synthetic α-mannosides, as well as α-glucosides and α-galactosides. Unexpectedly, it was found that in solution all tested aminothiahexyl glycosides inhibit bacterial adhesion but that this effect is unspecific. Instead it is due to cytotoxicity of the respective glycosides at high mm concentrations.
Keywords: Type 1 fimbriae; bacterial adhesion; carbohydrate specificity; synthetic α-glycosides; glycoarrays; adhesion-inhibition assays; toxicity

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MDPI and ACS Style

Fessele, C.; Lindhorst, T.K. Effect of Aminophenyl and Aminothiahexyl α-D-Glycosides of the Manno-, Gluco-, and Galacto-Series on Type 1 Fimbriae-Mediated Adhesion of Escherichia coli. Biology 2013, 2, 1135-1149.

AMA Style

Fessele C, Lindhorst TK. Effect of Aminophenyl and Aminothiahexyl α-D-Glycosides of the Manno-, Gluco-, and Galacto-Series on Type 1 Fimbriae-Mediated Adhesion of Escherichia coli. Biology. 2013; 2(3):1135-1149.

Chicago/Turabian Style

Fessele, Claudia; Lindhorst, Thisbe K. 2013. "Effect of Aminophenyl and Aminothiahexyl α-D-Glycosides of the Manno-, Gluco-, and Galacto-Series on Type 1 Fimbriae-Mediated Adhesion of Escherichia coli." Biology 2, no. 3: 1135-1149.

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