Long-lasting blocking of interoceptive effects of cocaine by a highly efficient cocaine hydrolase in rats.
Long-lasting blocking of interoceptive effects of cocaine by a highly efficient cocaine hydrolase in rats.
复制标题
DOI:
10.1038/s41598-023-50678-0
复制
发表时间:
2024-01-09
影响因子:
4.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Cocaine dependence is a serious world-wide public health problem without an FDA-approved pharmacotherapy. We recently designed and discovered a highly efficient long-acting cocaine hydrolase CocH5-Fc(M6). The present study examined the effectiveness and duration of CocH5-Fc(M6) in blocking interoceptive effects of cocaine by performing cocaine discrimination tests in rats, demonstrating that the duration of CocH5-Fc(M6) in blocking cocaine discrimination was dependent on cocaine dose and CocH5-Fc(M6) plasma concentration. Particularly, a dose of 3 mg/kg CocH5-Fc(M6) effectively attenuated discriminative stimulus effects of 10 mg/kg cocaine, cumulative doses of 10 and 32 mg/kg cocaine, and cumulative doses of 10, 32 and 56 mg/kg cocaine by ≥ 20% for 41, 19, and 10 days, and completely blocked the discriminative stimulus effects for 30, 13, and 5 days with corresponding threshold plasma CocH5-Fc(M6) concentrations of 15.9, 72.2, and 221 nM, respectively, under which blood cocaine concentration was negligible. Additionally, based on the data obtained, cocaine discrimination model is more sensitive than the locomotor activity to reveal cocaine effects and that CocH5-Fc(M6) itself has no long-term toxicity regarding behavioral activities such as lever pressing and food consumption in rats, further demonstrating that CocH5-Fc(M6) has the desired properties as a promising therapeutic candidate for prevenance of cocaine dependence.
登录
查看更多内容
影响因子:
4.7
作者:
Zhang T;Wei H;Deng J;Zheng F;Zhan CG
通讯作者:
Zhan CG
影响因子:
3.4
作者:
Deng J;Kim K;Zheng X;Shang L;Zhan CG;Zheng F
通讯作者:
Zheng F
DOI:
10.1111/add.15242
发表时间:
2021-04
期刊:
Addiction (Abingdon, England)
影响因子:
--
作者:
Brandt L;Chao T;Comer SD;Levin FR
通讯作者:
Levin FR
影响因子:
3.6
作者:
Gao, Daquan;Narasimhan, Diwahar L.;Zhan, Chang-Guo
通讯作者:
Zhan, Chang-Guo
影响因子:
16.6
作者:
Zheng, Fang;Xue, Liu;Hou, Shurong;Liu, Junjun;Zhan, Max;Yang, Wenchao;Zhan, Chang-Guo
通讯作者:
Zhan, Chang-Guo