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E-series prostaglandins activate cAMP-mediated potassium currents in follicle-enclosed Xenopus oocyte.

Abstract：

:Receptor-mediated responses to prostaglandins E1 and E2 are shown by electrophysiological methods in follicle-enclosed oocytes of Xenopus laevis. In voltage-clamped oocytes, prostaglandins E1 and E2 elicited an outward hyperpolarizing current. This outward membrane current was caused by an increase in K+ conductance. The prostaglandin-induced current was augmented by adenylate cyclase activator, forskolin, and by phosphodiesterase inhibitor, theophylline, indicating that adenosine 3', 5'-cyclic monophosphate (cAMP) is involved in activating the K+ current. The prostaglandin responses were either abolished or greatly reduced by removing follicular cells with collagenase, suggesting that prostaglandin receptors reside in the follicular cells.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Mori K,Oka S,Tani A,Ito S,Watanabe Y

doi

10.1016/0006-291x(89)90849-8

subject

Has Abstract

pub_date

1989-08-15 00:00:00

pages

1535-40

issue

3

eissn

0006-291X

issn

1090-2104

pii

0006-291X(89)90849-8

journal_volume

162

pub_type

杂志文章

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