Abstract：
:We used our recently reported stable, transformed human renal carcinoma cell line as a model system to study the role of 3',5'-adenosine monophosphate (cAMP) in erythropoietin secretion. The erythropoietin produced by these cells is both biologically active and immunologically cross-reactive with purified native human hormone in our radioimmunoassay. Erythropoietin release by these renal carcinoma cells appears to be stimulated by cAMP as well as by the phosphodiesterase inhibitor 3-isobutyl-1-methyl-xanthine (MIX). The response to cAMP involves a rapid and enhanced release of hormone, which occurred within 30 minutes of exposure of the cells to the effector and continued for at least 4 hours. Intracellular erythropoietin was higher in the control cultures than in the cells treated with cAMP, suggesting that cAMP stimulates the release of a storage pool of hormone. The ability of cAMP and MIX to elicit the release of erythropoietin suggests that a cAMP-mediated mechanism is involved in the release of this hormone.
journal_name
Bloodjournal_title
Bloodauthors
Sherwood JB,Burns ER,Shouval Dsubject
Has Abstractpub_date
1987-04-01 00:00:00pages
1053-7issue
4eissn
0006-4971issn
1528-0020journal_volume
69pub_type
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