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殖民地刺激因子2 (CSF2) 作为肠道微生物群依赖的免疫因子,它改变了雄性小鼠对可卡因的分子和行为反应

Kelsey E Lucerne¹, Calista R Dean², Aya Osman³

¹Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States.

Brain, behavior, and immunity

|August 4, 2024

概括

可卡因使用障碍缺乏FDA批准的治疗方法. 这项研究确定了殖民地刺激因子2 (CSF2) 作为一种依赖肠道微生物群的信号分子,可以减少寻找可卡因的行为.

科学领域:

神经科学是一个神经科学.
免疫学免疫学免疫学
微生物学微生物学

背景情况:

可卡因使用障碍 (CUD) 带来了重大的健康挑战,没有FDA批准的药物疗法.
肠道微生物组影响大脑功能和行为在物质使用障碍中.
肠道微生物群的枯竭加剧了可卡因的使用和寻求行为.

研究的目的:

调查肠道微生物群影响的免疫信号在CUD中的作用.
在CUD模型中识别涉及肠-大脑通信的特定免疫因素.
探索CUD的潜在治疗点.

主要方法:

确定了殖民地刺激因子2 (CSF2) 作为一种细胞因子,由可卡因以肠道微生物组依赖的方式增加.
通过外围给予CSF2并评估其对可卡因相关行为和核内基因表达的影响.
研究了CSF2逆转微生物群枯竭行为影响的能力.

主要成果:

周围注射的CSF2穿过血脑屏障,并调节核中的可卡因反应.
CSF2治疗减少了运动运动活动和可卡因代替偏好.
CSF2改变了大脑对可卡因的转录反应,并逆转了微生物群枯竭的影响.

结论:

殖民地刺激因子2 (CSF2) 在CUD中代表了一条新的肠-大脑信号通路.
这种先天性免疫因子为CUD提供了潜在的治疗点.
进一步的翻译研究是有必要的,以探索基于CSF2的干预措施.

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