Anatomy of a Comparative Gene Expression Study Anatomy of a comparative gene expression study. Includes: Choosing Cell Populations; mRNA Extraction and Reverse Transcription; Fluorescent Labeling of cDNA's; Hybridization to a DNA Microarray; Scanning the Hybridized Array; Interpreting the Scanned Image.
Applications of SKY in Cancer Cytogenetics Review SKY has also been applied for the mouse genome, enabling investigators to extrapolate information from mouse models of cancer to their human counterparts. This review will address the advances that SKY has facilitated in the field of cancer cytogenetics, as well as its variety of application in the cancer research laboratories.
Clonality - X Chromosome Inactivation Assay Protocol Investigators can utilize X chromosome inactivation (methylation) to determine the clonality status of a tumor or premalignant lesion in females. The technique is based on a methylation-sensitive restriction enzyme and analysis of a polymorphic locus on the X chromosome. Clonal cell populations will show "loss" of the non-methylated allele after restriction digest. The assay can be performed on DNA recovered from microdissected samples. Both frozen tissue and fixed-embedded tissue can be used.
Serial Analysis Of Gene Expression (SAGE) SAGE is a new method that has been invented at Johns Hopkins University in USA to give scientists an overview of a cell’s complete gene activity. It works by capturing RNAs, identifying them and counting them. By comparing different types of cells, the researchers hope to generate profiles that will help them understand healthy cells and what goes wrong during diseases. Includes: How SAGE works and Steps of SAGE.
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