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  • Title: Desensitization of PGE1 receptors in neuroblastoma-glioma hybrid cells.
    Author: Kenimer JG.
    Journal: Prostaglandins; 1982 Mar; 23(3):311-8. PubMed ID: 6124998.
    Abstract:
    Prostaglandin E1 receptor sites were measured in homogenates of NG108-15 neuroblastoma-glioma hybrid cells after exposure of intact cells to PGE1. Scatchard analysis of competitive binding studies showed that incubation of NG108-15 cells in the presence of 2.5 microM PGE1 for 16 h resulted in a loss of PGE1 receptors and an increase in the dissociation constant of the remaining receptors. Thus, cells challenged with PGE1 not only lose adenylate cyclase activity, but also lose PGE1 receptors and decreased the affinity of the remaining receptors for PGE1.
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