Gene Expression Profiling of Primary Tumor Cell Populations Using Laser Capture Microdissection, RNA Transcript Amplification, and GeneChip Microarray
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Gene expression profiling from microdissected cell populations is a powerful approach to explore molecular processes involved in development and solid tumor biology.
In this chapter, we detail robust and validated methods for tissue preparation and isolation of high-quality RNA from microdissected cell populations. A protocol is also provided for linear transcript amplification using as little as 10 ng of total RNA to produce labeled cRNA targets for hybridization to GeneChip� high-density oligonucleotide microarrays. Particular emphasis is placed on troubleshooting each technical step in the protocol and measures of quality assurance for both RNA isolation and resulting microarray data.
