Probiotics and regulation of immune responses

Abstract

We usually live In harmony with millions of bacteria in our gut that provide a protective barrier against pathogens and actively participate to the regulation of immune responses and establishment of oral tolerance. Probiotics are live bacteria exhibiting health-promoting effects. Among the numerous purported health benefits attributed to probiotics their capacity to improve some skin diseases such as atopic dermatitis is now supported by increasing number of clinical experiments, Recently, we showed that oral supplementation with Lactobacillus Johnsonni in healthy volunteers can accelerate the recovery of cutaneous immune homeostasis following UV exposure and may thus represent a new strategy for photoprotection. © 2011 Springer- Verlag Berlin Heidelberg.