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Selective Lesioning of Nuclear Factor-kappa B Activated Cells in the Nucleus Accumbens Shell Attenuates Alcohol Place Preference
Univ Georgia, GA 30602 USA.
Univ Georgia, GA 30602 USA.
Univ Georgia, GA 30602 USA.
Univ Georgia, GA 30602 USA.
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2018 (Engelska)Ingår i: Neuropsychopharmacology, ISSN 0893-133X, E-ISSN 1740-634X, Vol. 43, nr 5, s. 1032-1040Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Nuclear factor.-light chain enhancer of activated B cells (NF-kappa B) is a transcription factor commonly associated with innate immunity and is activated by infection and inflammation. NF-kappa B has recently gained attention as a mediator of complex psychiatric phenomena such as stress and addiction. In regards to alcohol, most research on NF-kappa B has focused on neurotoxicity and few studies have explored the role of NF-kappa B in alcohol reward, reinforcement, or consumption. In these studies, we used conditioned place preference to assess the activity of NF-kappa B in response to rewarding doses of alcohol. To measure NF-kappa B activity we used a line of transgenic mice that express the LacZ gene under the control of an NF-kappa B-regulated promoter. In these animals, staining for beta-galactosidase (beta-gal) identifies cells in which NF-kappa B has been activated. We then used the Daun02 inactivation method to specifically silence NF-kappa B-expressing cells during place preference conditioning. Daun02 is an inactive prodrug that is converted to the inhibitory molecule daunorubicin by beta-gal. After alcohol place conditioning, we observed increased beta-gal staining in the nucleus accumbens (NAC) shell and dorsal raphe nucleus, and found that disruption of NF-kappa B-expressing cells using Daun02 attenuated the development of alcohol place preference when infused into the NAC shell following conditioning sessions. We found this effect to be regionally and temporally specific. These results suggest that, in addition to its role in alcohol-induced neurotoxicity, NF-kappa B mediates the development of alcohol place preference via its actions in the NAC shell.

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NATURE PUBLISHING GROUP , 2018. Vol. 43, nr 5, s. 1032-1040
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Neurovetenskaper
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URN: urn:nbn:se:liu:diva-147087DOI: 10.1038/npp.2017.214ISI: 000427484600012PubMedID: 28901327OAI: oai:DiVA.org:liu-147087DiVA, id: diva2:1199573
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Funding Agencies|NIH K99/R00 Pathway to Independence Award [AA021805]; University of Georgia Office for Vice President of Research; NINDS [R01NS096176, R01NS097231]

Tillgänglig från: 2018-04-20 Skapad: 2018-04-20 Senast uppdaterad: 2018-04-20

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Karlsson, CamillaHeilig, Markus
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Centrum för social och affektiv neurovetenskapMedicinska fakultetenPsykiatriska kliniken
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