Inhibition of histone deacetylases in rats self-administering cocaine regulates lissencephaly gene-1 and reelin gene expression, as revealed by microarray technique

Journal of Neurochemistry
Lionel HostJean Zwiller

Abstract

Injection of the histone deacetylase inhibitor trichostatin A (TsA) to rats has been shown to decrease their motivation to self-administer cocaine. In the present study, we investigated alterations in gene expression patterns in the anterior cingulate cortex and nucleus accumbens of rats self-administering cocaine and treated with TsA. Using oligonucleotide microarrays, we identified 722 probe sets in the cortex and 136 probe sets in the nucleus accumbens that were differentially expressed between vehicle and TsA-treated rats that self-administered cocaine. Microarray data were validated by real-time PCR for seven genes. Using immunohistochemistry, we further investigated the expression of Lis1 and reelin genes, because (i) they were similarly regulated by TsA at the mRNA level; (ii) they belong to the same signal transduction pathway; (iii) mutations within both genes cause lissencephaly. Cocaine self-injection was sufficient to activate the two genes at both the mRNA and protein levels. TsA treatment was found to up-regulate both Lis1 and reelin protein expression in the cortex and to down-regulate it in the nucleus accumbens of rats self-administering cocaine. The data suggest that the two proteins contribute to establish ne...Continue Reading

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Citations

Jul 22, 2014·Addiction Biology·Emmanuelle Simon-O'BrienCatherine Vilpoux
Mar 16, 2013·Alcoholism, Clinical and Experimental Research·Rémi LegasteloisMickaël Naassila
Aug 19, 2015·The Journal of Clinical Investigation·Eva BenitoAndré Fischer
Nov 1, 2016·Journal of Neurochemistry·Steven W Barger
Feb 19, 2021·Pharmacological Reviews·Mariana Angoa-Pérez, Donald M Kuhn

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