Indoleamine 2,3-dioxygenase (IDO), a tryptophan-catabolizing enzyme, is an intracellular enzyme possessing various immunosuppressive properties. Here, we report the possible use of this enzyme to suppress proliferation of immune cells cocultured with IDO-expressing fibroblasts of an allogenic skin substitute. Fetal skin fibroblasts embedded within bovine… (More)
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