作者
Amber L LaCrosse, Sinead M O'Donovan, Marian T Sepulveda-Orengo, Robert E McCullumsmith, Kathryn J Reissner, Marek Schwendt, Lori A Knackstedt
发表日期
2017/6/14
期刊
Journal of Neuroscience
卷号
37
期号
24
页码范围
5809-5821
出版商
Society for Neuroscience
简介
Long-term treatment with ceftriaxone attenuates the reinstatement of cocaine seeking while increasing the function of the glutamate transporter 1 (GLT-1) and system xC- (Sxc) in the nucleus accumbens core (NAc). Sxc contributes the majority of nonsynaptic extracellular glutamate in the NAc, while GLT-1 is responsible for the majority of glutamate uptake. Here we used antisense to decrease the expression of GLT-1 and xCT (a catalytic subunit of Sxc) to determine the relative importance of both proteins in mediating the ability of ceftriaxone to prevent cue-induced reinstatement of cocaine seeking and normalize glutamatergic proteins in the NAc of rats. Intra-NAc xCT knockdown prevented ceftriaxone from attenuating reinstatement and from upregulating GLT-1 and resulted in increased surface expression of AMPA receptor subunits GluA1 and GluA2. Intra-NAc GLT-1 knockdown also prevented ceftriaxone from …
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AL LaCrosse, SM O'Donovan, MT Sepulveda-Orengo… - Journal of Neuroscience, 2017