期刊
JOURNAL OF HISTOCHEMISTRY & CYTOCHEMISTRY
卷 51, 期 7, 页码 913-919出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/002215540305100706
关键词
PLP; MOG; nonradioactive PCR labeling; high-resolution in situ hybridization; oligodendrocyte; carbonic anhydrase II; GFAP; myelin
类别
资金
- ONDIEH CDC HHS [ND 38236] Funding Source: Medline
Oligodendrocytes, the myelin-forming cells in the central nervous system, were visualized with excellent resolution at the light microscopic level using in situ hybridization (ISH). Digoxigenin (Dig)-tagged probes were synthesized and efficiently labeled by PCR. Specific probes to myelin genes were made by RT from brain total RNAs, followed by PCR with designed specific primers in the presence of Dig-II-dUTP. Probes specific to proteolipid protein (PLP), PLP and its isoform DM20 (PLP/DM20), and myelin oligodendrocyte glycoprotein (MOG) were synthesized and labeled. ISH was then applied on vibratomed tissue sections from mouse brains. Despite a low expression of MOG-specific and PLP-specific mRNAs in adult and newborn mouse brains, an oligodendrocyte population was detected. The specificity of Dig-labeled probes was confirmed with the double labeling of carbonic anhydrase II (CA II) and glial fibrillary acidic protein (GFAP) immunocytochemistry and ISH. This versatile and easy method for synthesis and labeling of specific probes to oligodendrocytes can be also applied to detect many other mRNAs in the nervous system and in other tissues.
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