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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Loss of glucose transporters is an early event in differentiation of HD3 cells.

The HD3 cell, a chicken erythroblast cell line infected with a temperature-sensitive avian erythroblastosis virus, becomes committed to differentiate to an erythrocyte upon temperature shift in presence of inducers. Before induction, the HD3 cell transports glucose and 2-deoxyglucose (2-DG). 3-O-methylglucose is poorly taken up. Upon induction of differentiation, glucose and 2-DG transport activity fall. Twenty-four hours postinduction, up to 75% of the glucose transport activity may disappear. By use of cDNA probes for chicken glucose transporters, two species of mRNA of 3.1 and 1.7 kb (equivalent to mammalian GLUT1 and GLUT3 mRNA, respectively) are detected. Both messages virtually disappear within 48 h after induction. Run-on assays show the cessation of synthesis of the corresponding RNAs parallel to the loss of glucose transport. In contrast to the glucose transporters, the nucleoside transporter level increases after induction of hematopoiesis. This developmental pattern is consistent with earlier studies showing that mature chicken erythrocytes have little glucose transport activity but retain appreciable levels of the nucleoside transporter and that nucleosides and glutamine provide major sources of oxidizable carbon compounds to sustain metabolism in circulating chicken erythrocytes.[1]


  1. Loss of glucose transporters is an early event in differentiation of HD3 cells. Mathew, A., Grdisa, M., Robbins, P.J., White, M.K., Johnstone, R.M. Am. J. Physiol. (1994) [Pubmed]
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