PT  - JOURNAL ARTICLE
AU  - Pacifici, Roberta
AU  - Zuccaro, Piergiorgio
AU  - López, Candido Hernández
AU  - Pichini, Simona
AU  - Di Carlo, Simonetta
AU  - Farré, Magi
AU  - Roset, Pere Nolasc
AU  - Ortuño, Jordi
AU  - Segura, Jordi
AU  - Torre, Rafael de La
TI  - Acute Effects of 3,4-Methylenedioxymethamphetamine Alone and in Combination with Ethanol on the Immune System in Humans
DP  - 2001 Jan 01
TA  - Journal of Pharmacology and Experimental Therapeutics
PG  - 207--215
VI  - 296
IP  - 1
4099  - http://jpet.aspetjournals.org/content/296/1/207.short
4100  - http://jpet.aspetjournals.org/content/296/1/207.full
SO  - J Pharmacol Exp Ther2001 Jan 01; 296
AB  - Cell-mediated immune response and release of cytokines after the administration of 3,4-methylenedioxymethamphetamine (MDMA, “ecstasy”) alone and in combination with ethanol were assessed in a double blind, randomized, crossover, controlled clinical trial. Six healthy male recreational users of MDMA participated in four different experimental sessions, with a washout interval between sessions of 1 week, in which single oral doses of MDMA (100 mg), ethanol (0.8 g/kg), the combination of both drugs, and placebo were tested. Acute MDMA administration produced a time-dependent immune dysfunction in association with serum concentrations of the drug as well as cortisol stimulation kinetics. Although total leukocyte count remained unchanged, there was a decrease in the CD4 T/CD8 T-cell ratio due to a decrease in both the percentage and absolute number of CD4 T-helper cells and simultaneous increase in natural killer (NK) cells. Ethanol consumption produced a decrease in T-helper cells and B lymphocytes. The combination of MDMA and ethanol caused the highest suppressive effect on CD4 T cells and increasing effect in NK cells. Drugs treatment produced a high increase of immunosuppressive cytokines (transforming growth factor-β and interleukin-10) and a switch from Th1-type cytokines (interleukin-2 and interferon-γ) to Th2-type cytokines (interleukin-4 and interleukin-10). Disregulation in the production of pro- and anti-inflammatory cytokines with an unbalance toward anti-inflammatory response was also observed. The immune function shows a trend toward baseline levels at 24 h after MDMA kinetics. This transient defect in immunological homeostasis, if temporarily repeated, might alter the immune response with a risk for the general health status. The American Society for Pharmacology and Experimental Therapeutics