Functional mutations in mouse norepinephrine transporter reduce sensitivity to cocaine inhibition.
Functional mutations in mouse norepinephrine transporter reduce sensitivity to cocaine inhibition.
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DOI:
10.1016/j.neuropharm.2008.09.008
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发表时间:
2009-02
影响因子:
4.7
通讯作者:
Gu HH
中科院分区:
文献类型:
--
作者:
Wei H;Hill ER;Gu HH
The transporters of dopamine, norepinephrine and serotonin are molecular targets of cocaine, amphetamine, and therapeutic antidepressants. The residues involved in binding these drugs are unknown. We have performed several rounds of random and site-directed mutagenesis in the mouse norepinephrine transporter and screened for mutants with altered sensitivity to cocaine inhibition of substrate uptake. We have identified a triple mutation that retains close to wild-type transport function but displays a 37-fold decrease in cocaine sensitivity and 24-fold decrease in desipramine sensitivity. In contrast, the mutant’s sensitivities to amphetamine, methamphetamine, and methylphenidate are only slightly changed. Our data reveal critical residues contributing to the potent uptake inhibitions by these important drugs. Furthermore, this drug-resistant triple mutant can be used to generate a unique knock-in mouse line to study the role of norepinephrine transporter in the addictive effects of cocaine and the therapeutic effects of desipramine.
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DOI:
10.1186/1471-2210-6-6
发表时间:
2006-03-03
期刊:
BMC pharmacology
影响因子:
--
作者:
Han DD;Gu HH
通讯作者:
Gu HH
DOI:
10.1016/j.bbrc.2006.03.096
发表时间:
2006-05-19
影响因子:
3.1
作者:
Gu, HH;Wu, XH;Han, DD
通讯作者:
Han, DD
影响因子:
64.8
作者:
Yamashita, A;Singh, SK;Gouaux, E
通讯作者:
Gouaux, E
影响因子:
15.9
作者:
KUHAR, MJ;RITZ, MC;BOJA, JW
通讯作者:
BOJA, JW
影响因子:
4.8
作者:
Gu, HH;Ahn, J;Rudnick, G
通讯作者:
Rudnick, G