[The participation of phenol-(DOPA-)oxidase containing cells (POZ) with the delayed hypersensitivity. (Preliminary report) (author's transl)].

With the aid of histochemical techniques phenol-(DOPA-)oxidase containing cells were detected in the skin, liver, spleen, small intestine and blood of guinea-pigs. The number of these cells is considerably increased in the connective tissue of the skin during the delayed hypersensitivity reaction which was provoked by an intracutaneous injection of cartilage antigen in guinea-pigs immunized with the same antigen.