PMID- 22441537 OWN - NLM STAT- MEDLINE DCOM- 20120726 LR - 20131121 IS - 1423-0216 (Electronic) IS - 1021-7401 (Linking) VI - 19 IP - 4 DP - 2012 TI - 3,4-methylenedioxymethamphetamine (ecstasy) decreases inflammation and airway reactivity in a murine model of asthma. PG - 209-19 LID - 10.1159/000334098 [doi] AB - OBJECTIVE: 3,4-Methylenedioxymethamphetamine (MDMA), or ecstasy, is a synthetic drug used recreationally, mainly by young people. It has been suggested that MDMA has a Th cell skewing effect, in which Th1 cell activity is suppressed and Th2 cell activity is increased. Experimental allergic airway inflammation in ovalbumin (OVA)-sensitized rodents is a useful model to study Th2 response; therefore, based on the Th2 skewing effect of MDMA, we studied MDMA in a model of allergic lung inflammation in OVA-sensitized mice. METHODS: We evaluated cell trafficking in the bronchoalveolar lavage fluid, blood and bone marrow; cytokine production; L-selectin expression and lung histology. We also investigated the effects of MDMA on tracheal reactivity in vitro and mast cell degranulation. RESULTS: We found that MDMA given prior to OVA challenge in OVA-sensitized mice decreased leukocyte migration into the lung, as revealed by a lower cell count in the bronchoalveolar lavage fluid and lung histologic analysis. We also showed that MDMA decreased expression of both Th2-like cytokines (IL-4, IL-5 and IL-10) and adhesion molecules (L-selectin). Moreover, we showed that the hypothalamus-pituitary-adrenal axis is partially involved in the MDMA-induced reduction in leukocyte migration into the lung. Finally, we showed that MDMA decreased tracheal reactivity to methacholine as well as mast cell degranulation in situ. CONCLUSIONS: Thus, we report here that MDMA given prior to OVA challenge in OVA-sensitized allergic mice is able to decrease lung inflammation and airway reactivity and that hypothalamus-pituitary-adrenal axis activation is partially involved. Together, the data strongly suggest an involvement of a neuroimmune mechanism in the effects of MDMA on lung inflammatory response and cell recruitment to the lungs of allergic animals. CI - Copyright (c) 2012 S. Karger AG, Basel. FAU - Stankevicius, Daniel AU - Stankevicius D AD - Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil. FAU - Ferraz-de-Paula, Viviane AU - Ferraz-de-Paula V FAU - Ribeiro, Alison AU - Ribeiro A FAU - Pinheiro, Milena Lobao AU - Pinheiro ML FAU - Ligeiro de Oliveira, Ana P AU - Ligeiro de Oliveira AP FAU - Damazo, Amilcar S AU - Damazo AS FAU - Lapachinske, Silvio F AU - Lapachinske SF FAU - Moreau, Regina L M AU - Moreau RL FAU - Tavares de Lima, Wothan AU - Tavares de Lima W FAU - Palermo-Neto, Joao AU - Palermo-Neto J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120321 PL - Switzerland TA - Neuroimmunomodulation JT - Neuroimmunomodulation JID - 9422763 RN - 0 (Cytokines) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Animals MH - Asthma/*immunology MH - Bone Marrow Cells MH - Bronchoalveolar Lavage Fluid/cytology MH - Cell Movement/drug effects MH - Cytokines/drug effects/metabolism MH - Disease Models, Animal MH - Inflammation/*immunology MH - Leukocyte Count MH - Leukocytes/*drug effects MH - Lung/cytology/*drug effects MH - Male MH - Mast Cells/drug effects MH - Mice MH - N-Methyl-3,4-methylenedioxyamphetamine/immunology/*pharmacology MH - Th2 Cells/*drug effects/physiology MH - Trachea/drug effects EDAT- 2012/03/24 06:00 MHDA- 2012/07/27 06:00 CRDT- 2012/03/24 06:00 PHST- 2011/07/29 00:00 [received] PHST- 2011/09/28 00:00 [accepted] PHST- 2012/03/24 06:00 [entrez] PHST- 2012/03/24 06:00 [pubmed] PHST- 2012/07/27 06:00 [medline] AID - 000334098 [pii] AID - 10.1159/000334098 [doi] PST - ppublish SO - Neuroimmunomodulation. 2012;19(4):209-19. doi: 10.1159/000334098. Epub 2012 Mar 21.