[Antigens common to human malignant tumors and certain species of microorganisms]

Agglutination, gel precipitation and immunoelectrophoresis demonstrated the presence of antigens common for human malignant tumors of different sites and BCG and Listeria monocytogenic microorganisms. The radioimmunoassay of sera in the agglutination test showed that these sera reacted with tumor cells rather than with cells from normal human tissues. The common antigen had the electrophorectic mobility in the beta-globulin zone.