Murine taste-immune associative learning

Brain, Behavior, and Immunity
Maj-Britt NiemiManfred Schedlowski

Abstract

Taste-immune associative learning can result from contingent pairings of an immune-competent unconditioned stimulus (US) with a gustative conditioned stimulus (CS). Recalling such an association may induce a set of physiological responses affecting behavior, endocrine, and immune functions. We have established a model of behaviorally conditioned immunosuppression employing the immunosuppressant drug cyclosporine A (CsA) as the US and saccharin as the CS in rats and humans. In order to investigate the inter-species generalization of this neuro-immune interaction, we tested the feasibility of this paradigm in mice. In a single-bottle scheme, male BALB/c mice (n=5) were conditioned by conducting three association trials and a single recall trial. Control groups (n=5/group) were designed to assure associative learning, pharmacological effects of the US, and placebo effect. Results show that CsA-conditioned animals displayed significant immunosuppression in the spleen after recall, measured by in vitro T-lymphocyte proliferation, and IL-2 production. However, the same animals did not show evidence of avoidance behavior to the CS. In contrast, evoking the association of saccharin-lithium chloride (inducing gastric malaise) in another...Continue Reading

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Citations

Aug 25, 2009·Brain, Behavior, and Immunity·Manfred Schedlowski, Gustavo Pacheco-López
Oct 9, 2007·Physiology & Behavior·G Pacheco-LopezM Schedlowski
Aug 23, 2019·Physiological Reviews·Martin HadamitzkyManfred Schedlowski
Dec 24, 2008·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·Gustavo Pacheco-LópezManfred Schedlowski
Feb 17, 2017·Experimental Biology and Medicine·Anny GanoTerrence Deak

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