Isolation and characterization of mouse mutant embryonal carcinoma cells which fail to differentiate in response to retinoic acid.
AUTOR(ES)
Schindler, J
RESUMO
Murine embryonal carcinoma cells from line PCC4.aza1R differentiate readily in response to retinoic acid. By treating PCC4.aza1R cells with the mutagen N-methyl-N' -nitro-N-nitrosoguanidine, we derived two embryonal carcinoma lines in which the cells failed to differentiate during exposure to retinoic acid. Although these dif(RA)- cells maintained the tumorigenic potential of the parental cells, they differentiated poorly in tumor form. Similarly, the tendency of dif(RA)- cells to differentiate when aggregated in vitro was diminished relative to that of PCC4.zaz1R cells. The rate of retinoic acid uptake in cells from the two mutant lines did not appear to be reduced compared with the rate in cells from the parental line; however, specific cytoplasmic retinoic acid-binding protein activity was virtually absent in both mutants. These results strengthen the view that differentiation of embryonal carcinoma cells in response to retinoic acid requires formation of retinoic acid-cytoplasmic retinoic acid-binding protein complexes.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=319949Documentos Relacionados
- Retinoic acid-induced neural differentiation of embryonal carcinoma cells.
- Isolation and characterization of polyoma virus mutants which grow in murine embryonal carcinoma and trophoblast cells.
- Isolation and characterization of polyoma virus mutants able to develop in embryonal carcinoma cells.
- Metabolism of retinoic acid and retinol during differentiation of F9 embryonal carcinoma cells.
- Thrombomodulin gene regulation by cAMP and retinoic acid in F9 embryonal carcinoma cells.