Nicotine self-administration and ERK signaling are altered in RasGRF2 knockout mice.
Nicotine self-administration and ERK signaling are altered in RasGRF2 knockout mice.
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DOI:
10.3389/fphar.2022.986566
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发表时间:
2022
影响因子:
5.6
通讯作者:
中科院分区:
文献类型:
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作者:
Ras/Raf/MEK/ERK (Ras-ERK) signaling has been demonstrated to play a role in the effects of drugs of abuse such as cocaine and alcohol, but has not been extensively examined in nicotine-related reward behaviors. We examined the role of Ras Guanine Nucleotide Releasing Factor 2 (RasGRF2), an upstream mediator of the Ras-ERK signaling pathway, on nicotine self-administration (SA) in RasGRF2 KO and WT mice. We first demonstrated that acute nicotine exposure (0.4 mg/kg) resulted in an increase in phosphorylated ERK1/2 (pERK1/2) in the striatum, consistent with previous reports. We also demonstrated that increases in pERK1/2 resulting from acute (0.4 mg/kg) and repeated (0.4 mg/kg, 10 daily injections) exposure to nicotine in WT mice were not present in RasGRF2 KO mice, confirming that RasGRF2 at least partly regulates the activity of the Ras-ERK signaling pathway following nicotine exposure. We then performed intravenous nicotine SA (0.03 mg/kg/infusion for 10 days) in RasGRF2 KO and WT mice. Consistent with a previous report using cocaine SA, RasGRF2 KO mice demonstrated an increase in nicotine SA relative to WT controls. These findings suggest a role for RasGRF2 in the reinforcing effects of nicotine, and implicate the Ras-ERK signaling pathway as a common mediator of the response to drugs of abuse.
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影响因子:
5.3
作者:
Bernardi, Rick F.;Olevska, Anastasia;Spanagel, Rainer
通讯作者:
Spanagel, Rainer
DOI:
10.1152/ajplung.00389.2017
发表时间:
2018-11-01
影响因子:
4.9
作者:
Glynos, Constantinos;Bibli, Sofia-Iris;Papapetropoulos, Andreas
通讯作者:
Papapetropoulos, Andreas
DOI:
10.1037/h0081662
发表时间:
1977-01-01
期刊:
CANADIAN JOURNAL OF PSYCHOLOGY-REVUE CANADIENNE DE PSYCHOLOGIE
影响因子:
--
作者:
DEWIT, H;WISE, RA
通讯作者:
WISE, RA
影响因子:
10.6
作者:
Fasano S;D'Antoni A;Orban PC;Valjent E;Putignano E;Vara H;Pizzorusso T;Giustetto M;Yoon B;Soloway P;Maldonado R;Caboche J;Brambilla R
通讯作者:
Brambilla R
影响因子:
--
作者:
Feig, Larry A
通讯作者:
Feig, Larry A