BrdU assay for neurogenesis in rodents

被引:288
作者
Wojtowicz, J. Martin [1 ]
Kee, Nohjin
机构
[1] Univ Toronto, Dept Physiol, Toronto, ON M5S 1A8, Canada
[2] Hosp Sick Children, Program Neurosci & Mental Hlth, Toronto, ON M5G 1X8, Canada
基金
加拿大健康研究院;
关键词
D O I
10.1038/nprot.2006.224
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Neurogenesis within the adult central nervous system is demonstrated using an exogenous cell tracer, 5'-bromo-2'-deoxyuridine (BrdU), in combination with endogenous neuronal markers. Specific primary antibodies raised against these markers are widely available and their visualization is possible with the use of fluorescently tagged secondary antibodies. BrdU is a thymidine analog that incorporates into dividing cells during DNA synthesis. Once incorporated into the new DNA, BrdU will remain in place and be passed down to daughter cells following division. Typically, BrdU is injected intraperitoneally. Different survival times required by the desired experimental time-line will yield data on specific phases of neurogenesis: proliferation, differentiation and maturation. One of the drawbacks of using BrdU is the dependence on a stressful injection procedure and uncertain penetration of the targeted cells with a uniform concentration of the compound. Thus, for experiments requiring measurements of cell proliferation, Ki67 can be used as an acceptable alternative. The protocol takes 3-5 d, allowing for sectioning and staining.
引用
收藏
页码:1399 / 1405
页数:7
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