低层的石墨烯增加了对刺激刺激的感知神经元的反应
Lieselot Deleye1, Francesca Franchi1,2, Martina Trevisani1,3
1Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia (IIT), Largo Rosanna Benzi 10, 16132 Genova, Italy. valentina.castagnola@iit.it.
Nanoscale
|January 16, 2024
概括
几层石墨烯 (FLG) 被感官神经元内部化而没有毒性,可能会增强它们对有害刺激的反应. 这表明FLG在周围神经系统研究中的新生物医学应用.
科学领域:
- 生物材料科学 生物材料科学
- 神经科学是一个神经科学.
- 纳米技术纳米技术
背景情况:
- 几层石墨烯 (FLG) 显示出生物医学用途的前景,如组织工程和药物输送.
- 研究已经探索了FLG在中枢神经系统中的作用,但其对外周神经系统的影响在很大程度上仍未得到研究.
研究的目的:
- 为了研究几层石墨烯 (FLG) 对大鼠背根 (DRG) 的感觉神经元的影响.
- 评估FLG的内部化,细胞内命运和DRG神经元中的潜在毒性.
- 评估FLG对DRG神经元,特别是 nociceptors的电生理反应的影响.
主要方法:
- 鼠类DRG感觉神经元暴露于FLG的合分散.
- 使用显微镜评估FLG内部化和细胞内积累.
- 评估神经元活力,形态,蛋白质含量和电性质.
- 电生理学记录来测量神经元对有害刺激和特定化学受体激活剂 (TRPV1,TRPA1) 的反应.
主要成果:
- FLG片被DRG神经元积极内化,并积聚在细胞内囊泡中.
- 没有观察到显著的毒理效应;神经元活力,形态和电气特性被保留.
- 治疗FLG导致了对TRPV1和TRPA1主激素的可感受性DRG神经元的功能反应增加.
结论:
- FLG可以被感官神经元内部化,而不会造成重大伤害.
- 暴露于FLG可以调节 nociceptive DRG神经元的功能反应.
- 这些发现表明FLG在周围神经系统疾病和疼痛研究中的潜在应用.
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