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- W4248302307 startingPage "1526" @default.
- W4248302307 abstract "Raji, a malignant B-lymphocyte cell line containing Epstein-Barr virus genomic elements, has been conditioned to proliferate optimally in transferrin (Tf)-free medium containing a very low concentration of an iron salt. We provide evidence that an Tf-independent iron uptake system is physiologically important for maintaining the growth of these cells. The data show that Raji cells take up iron from iron salts using a relatively high-capacity, low-affinity, temperature- and calcium- dependent uptake system. The apparent capacity of this system increases when: (1) cells are cultured in Tf-free medium containing high concentrations of iron salt as opposed to medium containing Tf; and (2) when the iron salt concentration of Tf-free medium is lowered to about 1.6 mumol/L. Cellular iron uptake also increases when a maximum number of cells are in S and G2 and M cell phases of the cell cycle. The cells are sensitive to growth inhibition by the addition of deferoxamine. This evidence supports the hypothesis that certain malignant lymphocytes, under iron deplete conditions, fulfill an iron requirement for proliferation by an adaptation such as Tf-independent iron uptake." @default.
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- W4248302307 date "1991-09-15" @default.
- W4248302307 modified "2023-09-28" @default.
- W4248302307 title "Transferrin-independent iron uptake supports B lymphocyte growth" @default.
- W4248302307 doi "https://doi.org/10.1182/blood.v78.6.1526.bloodjournal7861526" @default.
- W4248302307 hasPublicationYear "1991" @default.
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