4.5 Article

A morphine/heroin vaccine with new hapten design attenuates behavioral effects in rats

期刊

JOURNAL OF NEUROCHEMISTRY
卷 119, 期 6, 页码 1271-1281

出版社

WILEY
DOI: 10.1111/j.1471-4159.2011.07502.x

关键词

addiction; immunization; morphine; heroin; vaccine

资金

  1. Natural Science Foundation of China [30725016, 31070958]
  2. Beijing Municipal Natural Science Foundation [7091003]

向作者/读者索取更多资源

Heroin use has seriously threatened public heath in many countries, but the existing therapies continue to have many limitations. Recently, immunotherapy has shown efficacy in some clinical studies, including vaccines against nicotine and cocaine, but no opioid vaccines have been introduced in clinical studies. The development of a novel opioid antigen designed specifically for the prevention of heroin addiction is necessary. A morphinekeyhole limpet hemocyanin conjugate was prepared and administered subcutaneously in rats. Antibody titers in plasma were measured using an enzyme-linked immunosorbent assay (ELISA). Competitive ELISA was used to assess the selectivity of the antibodies. Dopamine concentrations in the nucleus accumbens in rats after vaccine administration were determined by high-performance liquid chromatography with electrochemical detection. The effects of the vaccine on the heroin-primed restatement of self-administration and locomotor sensitization were evaluated. A novel hapten, 6-glutarylmorphine, was produced, and the vaccine generated a high antibody titer response. This vaccine displayed specificity for both morphine and heroin, but the anti-morphine antibodies could not recognize dissimilar therapeutic opioid compounds, such as buprenorphine, methadone, naloxone, naltrexone, codeine, and nalorphine. The morphine antibody significantly decreased morphine-induced locomotor activity in rats after immunization. Importantly, rats immunized with this vaccine did not exhibit heroin-primed reinstatement of heroin seeking when antibody levels were sufficiently high. The vaccine reduced dopamine levels in the nucleus accumbens after morphine administration, which is consistent with its behavioral effects. These results suggest that immunization with a novel vaccine is an effective means of inducing a morphine-specific antibody response that is able to attenuate the behavioral and psychoactive effects of heroin.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
Article Biochemistry & Molecular Biology

Associations between liver function and cerebrospinal fluid biomarkers of Alzheimer's disease pathology in non-demented adults: The CABLE study

Pei-Yang Gao, Ya-Nan Ou, Yi-Ming Huang, Zhi-Bo Wang, Yan Fu, Ya-Hui Ma, Qiong-Yao Li, Li-Yun Ma, Rui-Ping Cui, Yin-Chu Mi, Lan Tan, Jin-Tai Yu

Summary: Liver function may play a role in the progression of Alzheimer's disease. The study found that as AD progressed, certain liver function markers increased while others decreased. The relationship between liver function and CSF AD biomarkers indicates a potential mediation effect on cognition.

JOURNAL OF NEUROCHEMISTRY (2024)