[Blood group specific properties of leucocyte nuclei (author's transl)]

The absorbing and precipitating capacity of leucocyte nuclear suspensions derived from conserved blood of various blood groups was examined with anti-A-, anti-B-, anti-H, anti-M-, anti-N-, and anti-CDE-, and anti-D-sera as well as with anti-AHP- and Evonymus-extracts. Nuclei of blood group A absorbed anti-A, but not anti-B; nuclei of blood group B absorbed anti-B, but not anti-A. Nuclei of blood group 0 absorbed anti-H, but neither anti-A nor anti-B. Anti-M-, anti-N-, anti-CDE-, and anti-D-sera showed no absorption effect after incubation with leucocyte nuclei of corresponding blood groups. A nuclei were strongly precipitated by anti-AHP; B- and 0-nuclei were markedly precipitated by Evonymus-extract. B- and 0-nuclei showed only a weak precipitation with anti-AHP-extract; A-nuclei were only slightly precipitated by Evonymus-extract. Hence, leucocyte nuclei possess blood group specific properties, which, according to the present studies, are limited to certain blood group systems.