A new study suggests the active ingredient in marijuana delays the rejection of incompatible organs in mice. The results were published in the Journal of Leukocyte Biology.
For the study, researchers transplanted the skin from one group of mice to a group of genetically different mice. The incompatible skin was treated with either a placebo or THC, the active compound in cannabis.
Due to the genetically different nature of the transplants, the mice’s immune systems should have recognised the tissue as foreign and rejected it. However, the THC-treated transplants delayed rejection of the skin grafts when compared to the placebo group.