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The effects of delta-9-tetrahydrocannabinol (THC) and its major metabolite, 11-OH delta-9-tetrahydrocannabinol (11-OH THC) on mitogen driven lymphocyte blastogenic transformation (LBT) were studied. THC inhibited LBT responses to the T lymphocyte mitogens phytohemagglutinin and concanavalin A but
Marijuana components modulate a variety of immune response parameters. The cannabinoids delta 9-tetrahydrocannabinol (THC) and 11-hydroxy-tetrahydrocannabinol (11 OH-THC) are known to depress the in vitro proliferative response of murine lymphoid cells to the mitogens concanavalin A (Con A) and
The effects of delta 9-tetrahydrocannabinol (THC) and 11-OH THC on the proliferative responses of murine thymus, spleen and lymph node cells were examined. Specifically, weanling and adult mouse lymphocytes were stimulated in vitro with the T-cell mitogens concanavalin A and phytohemagglutinin.
The lymphocyte response to phytohemagglutinin (PHA) as measured by [13H]thymidine incorporation is equally inhibited by 10(-5) to 10(-4) M concentrations of delta8, and delta9-tetrahydrocannabinol (THC), their 11-hydroxymetabolites, cannabidiol, cannabinol, cannabichromene, cannabicyclol. A similar