Prostaglandin E(2) and misoprostol induce neurite retraction in Neuro-2a cells.
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Prostaglandin E(2) and misoprostol induce neurite retraction in Neuro-2a cells.

Biochem Biophys Res Commun. 2010 Jul 2;

Authors: Tamiji J, Crawford DA

Prostaglandin E(2) (PGE(2)) is a key lipid-derived compound which mediates important physiological functions in the nervous system via activation of four EP receptors (EP1-4). Recent studies have shown that altered PGE(2) signalling due to abnormal lipid peroxidation and oxidative stress may underlie some pathologies of the nervous system. The prenatal exposure to a drug misoprostol, a prostaglandin type E analogue, has also been linked to a number of neurodevelopmental defects. In the present study we use ratiometric calcium imaging with fura-2AM as a calcium indicator to determine the effects of PGE(2) and misoprostol on calcium homeostasis in growth cones of mouse neuroblastoma (Neuro-2a) cells. Our results show that both drugs increase the amplitude of calcium transients in growth cone of Neuro-2a cells and induce neurite retraction. Moreover, quantitative real-time PCR also revealed that the mRNA expression level of the four EP receptors was significantly higher during the neurogenesis period in mouse indicating the importance of PGE(2) signalling in the nervous system.

PMID: 20599704 [PubMed - as supplied by publisher]

Read the complete post at http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?tmpl=NoSidebarfile&db=PubMed&cmd=Retrieve&list_uids=20599704&dopt=Abstract

Posted 7 Jul 2010 7:50 AM by pubmed: neuroblastoma
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