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Evidence for P2X(3) receptors in the developing rat brain

Kidd, Emma Jane, Miller, K. J., Sansum, A. J. and Humphrey, P. P. A. 1998. Evidence for P2X(3) receptors in the developing rat brain. Neuroscience 87 (3) , pp. 533-539. 10.1016/S0306-4522(98)00294-2

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Abstract

P2X receptor-mediated responses to the ATP analogue, α,β-methylene ATP, in rat brain [1], [6], [10], [11], [12], [14], [15], [17], [23] and [24]cannot be accounted for by the receptor proteins known to be present. [9], [16] and [26]Such experiments are often performed on cells from neonates [1], [10], [12], [17] and [24]and, since differential developmental regulation of P2X1 and P2X2 receptor messenger RNAs has already been demonstrated,[18]this is likely to be the case for other P2X receptors. This study was designed to address the possible existence of α,β-methylene ATP-sensitive P2X3 receptors in rat brains of various ages using a P2X3 receptor-selective antibody. P2X3 receptor protein was found in discrete regions of the embryonic (E16) and neonatal rat brain (P7 and P14) but was not detectable in adult animals. This is the first demonstration of the presence of these receptors in brains from various ages of rat and the differential expression of these receptors in neonates may account for some reported electrophysiological responses to α,β-methylene ATP.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Pharmacy
Subjects: R Medicine > RM Therapeutics. Pharmacology
Publisher: Elsevier
ISSN: 0306-4522
Last Modified: 13 Mar 2022 02:09
URI: https://orca.cardiff.ac.uk/id/eprint/14775

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