Sex- and Genotype-Dependent Nicotine-Induced Behaviors in Adolescent Rats with a Human Polymorphism (rs2304297) in the 3'-UTR of the CHRNA6 Gene.
Sex- and Genotype-Dependent Nicotine-Induced Behaviors in Adolescent Rats with a Human Polymorphism (rs2304297) in the 3'-UTR of the CHRNA6 Gene.
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DOI:
10.3390/ijms23063145
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发表时间:
2022-03-15
影响因子:
5.6
通讯作者:
Lotfipour S
中科院分区:
文献类型:
--
作者:
Cardenas A;Bai Y;Hajy Heydary Y;Li J;Leslie FM;Lotfipour S
In human adolescents, a single nucleotide polymorphism (SNP), rs2304297, in the 3′-UTR of the nicotinic receptor subunit gene, CHRNA6, has been associated with increased smoking. To study the effects of the human CHRNA6 3′-UTR SNP, our lab generated knock-in rodent lines with either C or G SNP alleles. The objective of this study was to determine if the CHRNA6 3′-UTR SNP is functional in the knock-in rat lines. We hypothesized that the human CHRNA6 3′-UTR SNP knock-in does not impact baseline but enhances nicotine-induced behaviors. For baseline behaviors, rats underwent food self-administration at escalating schedules of reinforcement followed by a locomotor assay and a series of anxiety tests (postnatal day (PN) 25-39). In separate cohorts, adolescent rats underwent 1- or 4-day nicotine pretreatment (2×, 30 μg/kg/0.1 mL, i.v.). After the last nicotine injection (PN 31), animals were assessed behaviorally in an open-field chamber, and brain tissue was collected. We show the human CHRNA6 3′-UTR SNP knock-in does not affect food reinforcement, locomotor activity, or anxiety. Further, 4-day, but not 1-day, nicotine exposure enhances locomotion and anxiolytic behavior in a genotype- and sex-specific manner. These findings demonstrate that the human CHRNA6 3′-UTR SNP is functional in our in vivo model.
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影响因子:
3.6
作者:
Cao, Junran;Belluzzi, James D.;Loughlin, Sandra E.;Dao, Jasmin M.;Chen, YiLing;Leslie, Frances M.
通讯作者:
Leslie, Frances M.
影响因子:
1.6
作者:
Cardenas A;Martinez M;Saenz Mejia A;Lotfipour S
通讯作者:
Lotfipour S
影响因子:
5.3
作者:
Gotti, Cecilia;Guiducci, Stefania;Zoli, Michele
通讯作者:
Zoli, Michele
影响因子:
1.7
作者:
Andersen, SL;Rutstein, M;Teicher, MH
通讯作者:
Teicher, MH
影响因子:
4.7
作者:
Gilbert, DG;Izetelny, A;Huggenvik, JI
通讯作者:
Huggenvik, JI