Title : Secondary immunity to Legionella pneumophila and Th1 activity are suppressed by delta-9-tetrahydrocannabinol injection.

Pub. Date : 1994 Sep

PMID : 8063421






3 Functional Relationships(s)
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1 The level of anti-L. pneumophila antibodies in serum increased in both THC-treated and control mice; however, in the THC group IgG1 antibodies which are stimulated by Th2 cells were elevated while Th1-regulated, IgG2a antibodies were depressed. Dronabinol heart and neural crest derivatives expressed 2 Mus musculus
2 Normal mouse splenocytes treated in vitro with THC and pokeweed mitogen showed suppressed production of gamma interferon, a cytokine associated with Th1 cells, but increased production of interleukin 4, a cytokine produced by Th2 cells. Dronabinol heart and neural crest derivatives expressed 2 Mus musculus
3 These results suggest that THC decreases the development of anti-L. pneumophila immunity by causing a change in the balance of Th1 and Th2 activities. Dronabinol heart and neural crest derivatives expressed 2 Mus musculus