Title : Variation in the binding of 125I-labeled interferon-beta ser to cellular receptors during growth of human renal and bladder carcinoma cells in vitro.

Pub. Date : 1987 Sep 1

PMID : 2957045






8 Functional Relationships(s)
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1 Variation in the binding of 125I-labeled interferon-beta ser to cellular receptors during growth of human renal and bladder carcinoma cells in vitro. Serine interferon beta 1 Homo sapiens
2 Studies of various established human bladder and renal carcinoma cell lines cultured in vitro demonstrated the presence of specific, saturable, high affinity binding sites for 125I-labeled human interferon Beta ser IFN-beta ser). Serine interferon beta 1 Homo sapiens
3 Studies of various established human bladder and renal carcinoma cell lines cultured in vitro demonstrated the presence of specific, saturable, high affinity binding sites for 125I-labeled human interferon Beta ser IFN-beta ser). Serine interferon beta 1 Homo sapiens
4 A single class of binding sites (1000-2000/cell) with an affinity constant of 10(10)-10(11) L/M was measured at 4 degrees C for cells exhibiting widely different sensitivity to the antiproliferative effect of IFN-beta ser. Serine interferon beta 1 Homo sapiens
5 Major fluctuations in the binding of 125I-labeled IFN-beta ser to cellular receptors were observed during in vitro proliferation of four of five cell lines examined. Serine interferon beta 1 Homo sapiens
6 Cell cycle analysis suggested that within the first 24 h and in the very late log and stationary phase of growth of ACHN (human renal carcinoma) cells, variations in the binding of 125I-labeled IFN-beta ser were partially attributable to binding fluctuations during the mitotic cycle. Serine interferon beta 1 Homo sapiens
7 T24 (human transitional cell carcinoma) and ACHN cells, synchronized by serum starvation, demonstrated increased binding of 125I-labeled IFN-beta ser 4-16 h following serum replenishment. Serine interferon beta 1 Homo sapiens
8 These changes in the biological activity of this interferon corresponded to growth related fluctuations in the IFN-beta ser binding. Serine interferon beta 1 Homo sapiens