[Antigenicity of the auricular cartilage and the influence of vital preservation. 2: Identification of antigens of the auricular cartilage: animal experiment studies in rats].

We could demonstrate the existence of class I and class II antigens on the chondrocytes of the auricular cartilage in inbred strain rats (Louvain/M/Him, Fischer 344). Indirect fluorescence and related techniques were used. The cartilage was stored in Ham's nutrient medium F 12 or in the tissue culture for 8-10 days before allotransplantation. A complete disappearance of the antigens could not be achieved by means of the vital conservation. Grafting did not modify further the distribution of the antigens; in 2 experiments only renewed strong coloration of the chondrocyte-membranes and the surrounding matrix could be observed.