Tissue distribution and biochemical properties of an interspecific tumour-associated gamma foetal antigen
- PMID: 475970
- PMCID: PMC2010012
- DOI: 10.1038/bjc.1979.173
Tissue distribution and biochemical properties of an interspecific tumour-associated gamma foetal antigen
Abstract
A late-gestation neonatal antigen (gamma foetal antigen; gamma-FA) immunologically and biochemically unrelated to murine alpha-foetoprotein, was identified in several spontaneous and carcinogen-induced sarcomas and hepatic carcinomas of the mouse and rat. An approximate mol. wt of 35,000 for gamma-FA from both foetus and tumour was obtained by molecular-sieve chromatography and sucrose-gradient centrifugation. Radial immunodiffusion analyses of organ extracts indicated that gamma-FA could be found in several neonatal tissues, the highest concentration occurring in the spleen. In the 2-month-old mouse, only splenic tissue contained gamma-FA and at much lower levels than in the organ of the newborn mouse.
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