[Detection of stage specific and organ specific human brain antigens during embryogenesis]

The rabbit antisera were obtained against the water soluble antigens of the brain of 8--10 weeks old human foetuses. Three groups of specific antigens were identified in the brain of human foetuses: 1) antigens common for the embryonic brain and other organs of the same age; 2) antigens common for the embryonic brain and some organs of the adult organism; 3) stage (phase)-specific brain antigens present only in the brain between the 8th and 10th weeks of pregnancy.