Direct intraventricular delivery of drugs to the rodent central nervous system.

Direct intraventricular delivery of drugs to the rodent central nervous system.
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DOI:
10.3791/50326
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发表时间:
2013-05-12
期刊:
Journal of visualized experiments : JoVE
影响因子:
--
通讯作者:
Miller TM
Miller TM
中科院分区:
其他
文献类型:
--
作者:
DeVos SL;Miller TM

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由于不能穿过血脑屏障,某些药物需要直接递送到中枢神经系统(CNS)中。我们的实验室特别关注反义寡核苷酸(ASO),尽管这里的视频中显示的技术也可以用于将大量其他药物递送到CNS。反义寡核苷酸(ASO)具有敲低序列特异性靶标1以及改变特异性基因的异构体比率2的能力。为了在小鼠中枢神经系统中实现广泛的基因敲除或剪接,可以使用两种不同的给药途径将ASO递送到大脑中,我们在视频中演示了这两种途径。第一种使用Alzet渗透泵,连接到通过手术植入侧脑室的导管。这允许将ASO连续输注到CNS中指定的时间段。第二种涉及向右侧脑室单次推注高浓度的阿索。这两种方法都使用小鼠脑室系统将阿索递送到整个大脑和脊髓,尽管根据研究的需要,一种方法可能优于另一种方法。
Due to an inability to cross the blood brain barrier, certain drugs need to be directly delivered into the central nervous system (CNS). Our lab focuses specifically on antisense oligonucleotides (ASOs), though the techniques shown in the video here can also be used to deliver a plethora of other drugs to the CNS. Antisense oligonucleotides (ASOs) have the capability to knockdown sequence-specific targets 1 as well as shift isoform ratios of specific genes 2. To achieve widespread gene knockdown or splicing in the CNS of mice, the ASOs can be delivered into the brain using two separate routes of administration, both of which we demonstrate in the video. The first uses Alzet osmotic pumps, connected to a catheter that is surgically implanted into the lateral ventricle. This allows the ASOs to be continuously infused into the CNS for a designated period of time. The second involves a single bolus injection of a high concentration of ASO into the right lateral ventricle. Both methods use the mouse cerebral ventricular system to deliver the ASO to the entire brain and spinal cord, though depending on the needs of the study, one method may be preferred over the other.
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