| Literature DB >> 1631087 |
H Matsue1, K G Rothberg, A Takashima, B A Kamen, R G Anderson, S W Lacey.
Abstract
The folate receptor mediates the uptake of 5-methyltetrahydrofolate in certain cultured cells by a process called potocytosis. When these cells are grown in physiological concentrations of folate, the receptor increases the efficiency of vitamin uptake by 30-fold. We now show that PAM 212 cells, a mouse keratinocyte cell line, are unable to grow in 1 nM 5-methyltetrahydrofolate unless they express a functional folate receptor. These results suggest that under certain conditions, tissue cells in the body may depend on the folate receptor to obtain enough 5-methyltetrahydrofolate for growth.Entities:
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Year: 1992 PMID: 1631087 PMCID: PMC402127 DOI: 10.1073/pnas.89.13.6006
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205