Abstract
Summary
The data presented in this report describe a precipitin test for mouse tissues containing the milk agent. Antiserum produced in rabbits against mouse mammary cancer reacts in high titre with tissues containing the cancer agent and in low titre with tissues lacking the agent. Antiserum prepared against normal mammary gland tissues abundant with milk agent will precipitate mammary cancer antigen in high serum dilutions. Antiserum prepared against normal mammary gland tissues lacking the agent will precipitate mammary cancer antigen in low serum dilutions. Precipitin-adsorption reactions show that the removal of antibodies against mammary gland tissues without the agent in mouse mammary cancer antiserum will not remove antibodies which react with the common antigen or antigens found in mouse mammary cancer and mouse mammary gland tissues containing the milk agent.
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