alpha 1-Fetoprotein mRNA of rat yolk sac and hepatoma.
AUTOR(ES)
Chiu, J F
RESUMO
Rat alpha 1-fetoprotein mRNA was isolated and purified to apparent homogeneity by means of immunoadsorption and oligo (dT) cellulose affinity chromatography. Purified AFP mRNA migrated as a 21S peak in 2.5% SDS-polyacrylamide gels. The translation product of this mRNA in micrococcal nuclease treated reticulocyte lysate was identified as AFP by specific immunoprecipitation, SDS-gel electrophoresis and tryptic digestion analysis. DNA complimentary to AFP mRNA was synthesized with avian meyloblastosis virus RNA-dependent DNA polymerase. This AFP cDNA was used as a probe to quantitate AFP mRNA in the developing rat liver and to compare the complexity and diversity of AFP mRNA derived from the normal rat liver and Morris hepatoma 7777. We found that the amount of functional AFP mRNA is decreasing during liver development. There is very little, if any, AFP mRNA in the adult rat liver. A high degree of homology between the AFP mRNA sequences of yolk sac and hepatoma was also found.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=328009Documentos Relacionados
- Functional analysis of developmentally regulated chromatin-hypersensitive domains carrying the alpha 1-fetoprotein gene promoter and the albumin/alpha 1-fetoprotein intergenic enhancer.
- Retinol-binding protein and transthyretin mRNA levels in visceral yolk sac and liver during fetal development in the rat.
- Primary structures of human alpha-fetoprotein and its mRNA.
- Alpha fetoprotein as marker for a case of orbital yolk sac tumour.
- Lectin affinity electrophoresis in a yolk sac tumour in the vagina with yolk sac tumour-type glycoform of alpha fetoprotein.
