MODULATION OF TRANSFERRIN RECEPTORS BY IRON, HEMIN AND PROTOPORPHYRIN .9.

  • 1 January 1983
    • journal article
    • research article
    • Vol. 297  (6) , 291-294
Abstract
The expression of transferrin [Trf] receptors in human leukemic cell lines was investigated. Heme, Fe and protoporphyrin-IX may modulate the expression of Trf receptors: Fe and heme induce a decrease in the number of Trf receptors; in contrast protoporphyin-IX elicited a significant increase in the number of Trf receptors. The intracellular concentration of Fe, heme and protoporphyrin-IX may represent the main factor involved in the regulation of the expression of Trf receptors.