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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Roy, C. Handler, J. S. Preston, A. S. |
| Abstract | A continuous strain of epithelial cells (LLC-PK1L) derived initially from pig kidney grows in a defined medium without serum or hormones. The epithelia from domes, a manifestation of transepithelial transport. The parent cell line, LLC-PK1, forms similar eithelia and has vasopressin-sensitive adenylate cyclase. In this study the binding of 3H-labeled [Lys8]vasopressin was used to examine the vasopressin receptors of LLC-PK1L cells. In the absence of serum, LLC-PK1L cells have receptors with a Kd (10 nM) for 3H-labeled [Lys8]vasopressin similar to that of the parent cell line and of membranes prepared from pig renal medulla, LLC-PK1L cells, however, have only 5% as many receptors as LLC-PK1 cells. The number of receptors and the vasopressin-sensitive adenylate cyclase activity are increased by growing LLC-PK1L cells in medium with 10% fetal bovine serum or with 10 microgram of insulin per ml. The combination of serum plus insulin has a greater effect than either alone. Serum and insulin do not change the apparent affinity of the receptors for vasopressin or the coupling between receptors and adenylate cyclase. Basal and NaF-stimulated adenylate cyclase activity are not affected. Several agents reported to induce receptors for hormones in other tissues have no effect on vasopressin receptors in LLC-PK1L cells. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 10 |
| Volume Number | 77 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1980-01-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Insulin Pharmacology Kidney Metabolism Receptors, Cell Surface Drug Effects Vasopressins Adenylate Cyclase Animals Blood Cell Division Cell Line Culture Media Receptors, Vasopressin Swine Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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