Abstract
Abstract
The suppressive effects of Δ9-tetrahydrocannabinol (THC) on the proliferation of lymphocytes from the spleen, lymph node, and thymus of weanling animals vs adult animals to the T-cell mitogen PHA were examined. THC had a suppressive effect on thymus cells from animals of both younger and older mice. THC suppressed spleen and lymph node cells responses to phytohemagglutinin (PHA) more readily when the cells were obtained from young mice rather than older animals. Suppression by THC in the adult mice was greater in an organ containing fewer mature T lymphocytes such as the thymus in comparison to lymphocytes in secondary organs such as the spleen and lymph nodes which contain more mature lymphocytes.
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