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  • Title: Inhibitory effect of hydroxyurea on [3-H]leucine incorporation in human peripheral lymphocytes.
    Author: Sobel JS.
    Journal: Chem Biol Interact; 1975 Jul; 11(1):33-9. PubMed ID: 124633.
    Abstract:
    Hydroxyurea (HU), generally considered to be a specific inhibiter of DNA synthesis, has an inhibitory effect on the incorporation of TCA-precipitable [3-H]leucine in peripheral lymphocytes. This action is not secondary to the inhibition of DNA synthesis since incorporation of [3-H]leucine is unaffected when DNA synthesis is inhibited by 5-fluorodeoxyuridine (FUdR); it does not appear to be directly related to inhibition of RNA synthesis; and it is not mediated at the level of translation since HU has no effect on protein synthesis in rabbit reticulocytes. The relevance of these findings to the use of HU as a DNA inhibitor is discussed.
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