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P2Y purinergic receptors regulate the growth of human melanomas

White, N; Ryten, M; Clayton, E; Butler, P; Burnstock, G; (2005) P2Y purinergic receptors regulate the growth of human melanomas. Cancer Letters , 224 (1) pp. 81-91. 10.1016/j.canlet.2004.11.027.

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Adenosine 5′-triphosphate is known to function as a potent extracellular messenger producing its effects via a distinct family of cell surface receptors. Different receptor subtypes have been shown to modulate different cellular functions such as proliferation, differentiation and apoptosis. We investigated the functional expression and proliferative action of metabotropic P2Y receptors in human melanoma tissue and cells. Expression of functional P2Y 1 , P2Y 2 and P2Y 6 receptor subtypes was established by reverse transcriptase polymerase chain reaction, immunohistochemistry and intracellular calcium measurements using a Fluorometric Imaging Plate Reader. Incubation of A375 melanoma cells with the P2Y 1 receptor-selective agonist 2-methylthioadenosine-5-diphosphate caused a decrease in cell number which was dose-dependent, whereas incubation with the P2Y 2 receptor agonist uridine triphosphate caused a dose-dependent increase in cell number. The action of extracellular nucleotides on P2Y receptors was shown to mediate the growth of melanomas and the P2Y 1 receptor is a putative target for melanoma therapy. © 2004 Elsevier Ireland Ltd. All rights reserved.

Type: Article
Title: P2Y purinergic receptors regulate the growth of human melanomas
DOI: 10.1016/j.canlet.2004.11.027
URI: http://discovery.ucl.ac.uk/id/eprint/188456
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