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  • Title: In vitro interaction of fenretinide with plasma retinol-binding protein and its functional consequences.
    Author: Berni R, Formelli F.
    Journal: FEBS Lett; 1992 Aug 10; 308(1):43-5. PubMed ID: 1386578.
    Abstract:
    The synthetic retinoid fenretinide (4-HPR; N-[4-hydroxyphenyl] all-trans-retinamide) interacts with plasma apo-retinol-binding protein (RBP) to form a tight complex (K'd approximately 0.2 microM) which does not exhibit binding affinity to transthyretin (TTR). Therefore, a substantial modification of the retinol hydroxyl group does not appear to affect the interaction with RBP but does drastically interfere with the protein-protein recognition. The remarkable early reduction in plasma retinol level induced by fenretinide administration may be associated with the high binding affinity of this retinoid to RBP and to its interference with the RBP-TTR complex formation.
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