Abstract
Dependence on methamphetamine (METH) is a severe brain disorder characterized by high relapse rates and cognitive decline following detoxification. Recent research suggests that transcranial direct current stimulation (tDCS) may treat addiction, but the underlying neural mechanisms remain unknown. Here, we employed METH-conditioned place preference (CPP) paradigm integrated with fMRI, electrophysiology, chemogenetics, in vivo fiber photometry recordings and a novel rodent tDCS model to examine the neural circuit underlying tDCS modulation on METH-induced addictive behavior. We demonstrated that tDCS targeted at the medial prefrontal cortex (mPFC) prevents relapse. Specifically, tDCS enhanced the activity of neurons in both the infralimbic cortex (IL) and the nucleus accumbens shell (NAcSh) simultaneously. Furthermore, chemogenetic inhibition of the IL-NAcSh circuit eliminated the modulatory effects of tDCS, while activation of the IL-NAcSh circuit was sufficient to suppress the relapse. These findings reveal that the IL-NAcSh pathway functions as a descending regulatory circuit mediating the therapeutic outcomes of tDCS in the treatment of substance use disorder, offering new insights into circuit-based neuro-modulatory treatments for addiction.
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Data availability
The datasets generated and analysed during the current study are available from the
corresponding author on reasonable request.
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Acknowledgements
We thank the SM4 (https://cstr.cn/31125.02.SHMFF.SM4.MRI) at the Steady High Magnetic Field Facility, CAS (https://cstr.cn/31125.02.SHMFF), for providing technical support and assistance in data collection and analysis.
Funding
This work was supported by grants from National Key R&D Program of China (2024YFF0507600), The Chinese National Programs for Brain Science and Brain-like Intelligence Technology (2021ZD0202101), The National Natural Science Foundation of China (32571266, 32171080, 32400919, and 32200914), the Global Select Project (DJK-LX-2022008) of the Institute of Health and Medicine, Hefei Comprehensive National Science Center, Natural Science Foundation of Anhui Province (2408085QC081), the Humanities and Social Science Fund of the Ministry of Education of China (24YJCZH014), the Fundamental Research Funds for the Central Universities (WK2110000025), the Open Fund of Key Laboratory of Philosophy and Social Science of Anhui Province on Adolescent Mental Health and Crisis Intelligence Intervention (SYS2024A06), the Open Project of the Key Laboratory of Brain-Machine Intelligence for Information Behavior - Ministry of Education, Shanghai International Studies University, Shanghai, China (2023JYBKFKT004) and Shanghai Key Laboratory of Brain-Machine Intelligence for Information Behavior.
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ZXC, ZRJ: funding acquisition. ZHL, ZWJ, XYX: methodology. ZHL, ZWJ, PY, WW: formal analysis. ZHL: Writing original draft. ZHL, ZRJ, CP, ZZ, ZXC: Writing-review & editing. ZHL, ZWJ, WLL, WY, ZYM, HS, CQY, OYM, HSH: investigation. All authors contributed to the article and approved the submitted version.
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Zuo, H., Zhang, W., Wang, L. et al. Transcranial direct current stimulation restores addictive behavior via prefrontal-striatal circuit. Mol Psychiatry (2025). https://doi.org/10.1038/s41380-025-03249-w
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DOI: https://doi.org/10.1038/s41380-025-03249-w