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Isolation of a Fetal Antigen from Human Colonic Tumors

Institut de Recherches Scientifiques sur le Cancer, 94-Villejuif, France

An antigen has been isolated from perchloric acid-soluble extracts of human colonic tumors which has also been found to be present in human fetal intestine. It has been established that this particular antigen is not present in normal adult colon or gastric mucosa, but that it is found in gastric tumors. The physicochemical characteristics of this antigen are described.

Received 10/14/68. Accepted 4/11/69.