Abstract
In situ hybridization to messenger RNA (mRNA) in complex tissues, such as the brain, allows the localization of gene expression to functionally distinct regions. It has been difficult to measure relative changes in gene expression within these regions because of the poor cellular resolution afforded by radioactively labeled probes and problems associated with densitometric analysis by counting silver grain deposition. Fluorescence in situ hybridization, using probes directly labeled with dyes that exhibit high quantum yield, provides both high-resolution localization of mRNA and high sensitivity for detection of hybridized probe. Digital image capture of fluorescence is readily amenable to densitometric analysis, thereby allowing relative quantification of mRNA expression in single cells or discrete brain nuclei. In this chapter, we describe protocols suitable for measuring relative changes in gene expression within individual cells of brain sections mounted on glass slides.
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Day, D.J., Mrkusich, E.M., Miller, J.H. (2007). Comparative Quantitation of mRNA Expression in the Central Nervous System Using Fluorescence In Situ Hybridization. In: Hilario, E., Mackay, J. (eds) Protocols for Nucleic Acid Analysis by Nonradioactive Probes. Methods in Molecular Biology, vol 353. Humana Press. https://doi.org/10.1385/1-59745-229-7:125
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DOI: https://doi.org/10.1385/1-59745-229-7:125
Publisher Name: Humana Press
Print ISBN: 978-1-58829-430-2
Online ISBN: 978-1-59745-229-8
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