PMID- 19882200 OWN - NLM STAT- MEDLINE DCOM- 20100623 LR - 20211020 IS - 1476-3524 (Electronic) IS - 1029-8428 (Linking) VI - 17 IP - 4 DP - 2010 May TI - Caffeine enhances astroglia and microglia reactivity induced by 3,4-methylenedioxymethamphetamine ('ecstasy') in mouse brain. PG - 435-9 LID - 10.1007/s12640-009-9125-y [doi] AB - Several reports suggest that 3,4-methylenedioxymethamphetamine (MDMA) induces neurotoxic effects and gliosis. Since recreational use of MDMA is often associated with caffeinated beverages, we investigated whether caffeine interferes with MDMA-induced astroglia and microglia activation, thus facilitating its neurotoxicity. MDMA (4 x 20 mg/kg) was acutely administered to mice alone or in combination with caffeine (10 mg/kg). CD11b and GFAP immunoreactivity were evaluated as markers of microglia and astroglia activation in the substantia nigra pars-compacta (SNc) and striatum. MDMA was associated with significantly higher CD11b and GFAP immunoreactivity in striatum, whereas only CD11b was significantly higher than vehicle in SNc. Caffeine potentiated the increase in CD11b and GFAP in the striatum but not in the SNc of MDMA-treated mice. The abuse of MDMA is a growing worldwide problem; the results of this study suggest that combination of MDMA plus caffeine by increasing glial activation might have harmful health consequences. FAU - Khairnar, Amit AU - Khairnar A AD - Department of Toxicology, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy. FAU - Plumitallo, Antonio AU - Plumitallo A FAU - Frau, Lucia AU - Frau L FAU - Schintu, Nicoletta AU - Schintu N FAU - Morelli, Micaela AU - Morelli M LA - eng PT - Journal Article DEP - 20091031 PL - United States TA - Neurotox Res JT - Neurotoxicity research JID - 100929017 RN - 0 (CD11b Antigen) RN - 0 (Glial Fibrillary Acidic Protein) RN - 0 (Phosphodiesterase Inhibitors) RN - 3G6A5W338E (Caffeine) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Animals MH - Astrocytes/*drug effects MH - Brain/*cytology/*drug effects MH - CD11b Antigen/metabolism MH - Caffeine/*pharmacology MH - Drug Interactions MH - Gene Expression Regulation/drug effects MH - Glial Fibrillary Acidic Protein/metabolism MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Microglia/*drug effects MH - N-Methyl-3,4-methylenedioxyamphetamine/*toxicity MH - Phosphodiesterase Inhibitors/*pharmacology EDAT- 2009/11/03 06:00 MHDA- 2010/06/24 06:00 CRDT- 2009/11/03 06:00 PHST- 2009/09/01 00:00 [received] PHST- 2009/10/08 00:00 [accepted] PHST- 2009/10/08 00:00 [revised] PHST- 2009/11/03 06:00 [entrez] PHST- 2009/11/03 06:00 [pubmed] PHST- 2010/06/24 06:00 [medline] AID - 10.1007/s12640-009-9125-y [doi] PST - ppublish SO - Neurotox Res. 2010 May;17(4):435-9. doi: 10.1007/s12640-009-9125-y. Epub 2009 Oct 31.