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Nerve growth factor protects R2 cells against neurotoxicity induced by methamphetamine
Jun-Lan Zhou1, Jian-Hui Liang, Ji-Wang Zheng
1Department of Neuropharmacology, National Institute on Drug Dependence, Peking University, 38 Xueyuan Road, Beijing 100083, PR China.
Abstract:
It is well known that methamphetamine is a neurotoxic drug of abuse to cause cell death both in vitro and in vivo. In this study, the protective effect of nerve growth factor on methamphetamine-induced neurotoxicity was examined in R2 cells. Treatment of R2 cells with methamphetamine for 48 h induced apoptotic-like death as determined by cell viability assay, DNA fragmentation on agarose gel and flow cytometric analysis. Co-treatment of R2 cells with nerve growth factor (10-1000 U/ml) in the presence of methamphetamine increased cell viability, decreased the intensity of methamphetamine-induced DNA fragmentation and reduced the number of apoptotic cells with flow cytometry. These results indicate that nerve growth factor may be useful for the treatment of methamphetamine users.
Insights
Nerve growth factor protects against methamphetamine-induced neurotoxicity in R2 cells. This finding suggests nerve growth factor could be a potential therapeutic agent for methamphetamine users.
Area of Science:
- Neuroscience
- Pharmacology
- Cell Biology
Background:
- Methamphetamine is a known neurotoxic drug causing cell death.
- Understanding protective mechanisms against drug-induced neurotoxicity is crucial.
Purpose of the Study:
- To investigate the protective effects of nerve growth factor (NGF) against methamphetamine-induced neurotoxicity.
- To evaluate NGF's efficacy in R2 cells exposed to methamphetamine.
Main Methods:
- R2 cells were treated with methamphetamine to induce neurotoxicity.
- Cell viability assays, DNA fragmentation analysis, and flow cytometry were employed.
- Co-treatment with varying concentrations of nerve growth factor was performed.
Main Results:
- Methamphetamine exposure induced apoptotic-like cell death.
- Nerve growth factor co-treatment significantly increased cell viability.
- NGF reduced DNA fragmentation and the number of apoptotic cells.
Conclusions:
- Nerve growth factor demonstrates a protective effect against methamphetamine neurotoxicity in vitro.
- These findings suggest potential therapeutic applications of NGF for methamphetamine users.
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