alexa Influence of the oral administration of lactic acid bacteria on iga producing cells associated to bronchus.


Journal of Vaccines & Vaccination

Author(s): Perdigon G, Alvarez S, Medina M, Vintii E, Roux E

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Abstract Intestinal, respiratory and genitourinary mucosal surfaces are the most important routes of entry for microbial pathogens. The stimulus of the mucosal immunity is not easy because the trigger keys for the activation do not follow the ones of the systemic immune response. In previous works we have demonstrated that some Lactic Acid Bacteria (LAB), when orally administered, can induce an enhance of the gut immune response. Taking into account the concept of a common mucosal response, we studied the effect of orally administered mice with Lactobacillus casei, L. acidophilus, L. rhamnosus, L. delbrueckii subsp. bulgaricus, Streptococcus salivarius subsp. thermophilus and Lactococcus lactis on the IgA secreting cells associated to bronchus. As shown before, oral immunostimulation with LAB induced an increase of the IgA* cells at intestinal level by a dose depending effect. In this study it is also showed that the LAB assayed, with exception of L. acidophilus, were able to enhance IgA+ cells at bronchial level, being also this effect dose dependent. The increment induced by some LAB in the number of IgA+ cells on the mucosa surface of the lower respiratory tract may be very important to prevent bronchus diseases.
This article was published in Int J Immunopathol Pharmacol and referenced in Journal of Vaccines & Vaccination

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