Specific adherence is the first requisite that a microorganism has to fulfil to become established onto a mucosal surface. It was previously shown that the OppA surface protein of Lactobacillus salivarius Lv72 bound HeLa cell cultures through interaction with glycosaminoglycans (GAGs). To determine whether this is a peculiarity of that strain or whether it can be extended to other lactobacilli, 12 strains, belonging to six species, were confronted with HeLa-cell cultures in the presence of soluble GAGs. Interference was observed to six of them, heparan sulphate and chondroitin sulphate C being more interfering than chondroitin sulphate A or chondroitin sulphate B. Furthermore, inhibition of the biosynthesis of GAGs or their elimination from the cell surface with specific enzymes also resulted in reduced adherence. Analysis of the surface proteome of Lactobacillus crispatus Lv25 and of Lactobacillus reuteri RC14 revealed single proteins that immunoreacted with antibodies raised against OppA, the main adhesin of L. salivarius Lv72. Upon MALDI-TOF-TOF analysis, they were identified as OppA-like proteins, thus indicating that these proteins participate as adhesins in attachment of diverse lactobacilli to the surface of human epithelial cells.
RESEARCH ARTICLE
Widespread use of Lactobacillus OppA, a surface located protein, as an adhesin that recognises epithelial cell surface glycosaminoglycans
C. Martín Related information
1Área de Microbiología, Universidad de Oviedo, Julián Clavería 6, 33006 Oviedo, Spain.
2Instituto Universitario Fernández-Vega, Universidad de Oviedo, Av. Doctores Fernández Vega 34, 33012 Oviedo, Spain.
, S. Escobedo Related information2Instituto Universitario Fernández-Vega, Universidad de Oviedo, Av. Doctores Fernández Vega 34, 33012 Oviedo, Spain.
1Área de Microbiología, Universidad de Oviedo, Julián Clavería 6, 33006 Oviedo, Spain.
, J.E. Suárez Related information1Área de Microbiología, Universidad de Oviedo, Julián Clavería 6, 33006 Oviedo, Spain.
, L.M. Quirós Related information1Área de Microbiología, Universidad de Oviedo, Julián Clavería 6, 33006 Oviedo, Spain.
2Instituto Universitario Fernández-Vega, Universidad de Oviedo, Av. Doctores Fernández Vega 34, 33012 Oviedo, Spain.
*Corresponding author: quirosluis@uniovi. es
2Instituto Universitario Fernández-Vega, Universidad de Oviedo, Av. Doctores Fernández Vega 34, 33012 Oviedo, Spain.
*Corresponding author: quirosluis@uniovi.
Beneficial Microbes: 10
(4)- Pages: 463 - 472
Published Online: March 18, 2019
Abstract
Keywords: Lactobacillus adherence, HeLa-cell, microbiota, probiotic
2022 Journal Impact Factor
5.4
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