[Nuclear antigens in tumorous and non-tumorous tissues]

The observations suggest that the cells of the human malignomas contain such protein or proteins which keep their specific antigenic characteristics even under isolation techniques. These characteristics have been directly due to the nucleus of the malignant cell, and had remained also under the cell-culture process. The nuclear antigen and specific antibody technique described in this paper seem to be suitable as an immunofluorescent method in the immunodiagnostics of the human tumors, furthermore provide valuable data in the clarification of the problem of human tumors.