Reference size-matching, whole-genome amplification, and fluorescent labeling as a method for chromosomal microarray analysis of clinically actionable copy number alterations in formalin-fixed, paraffin-embedded tumor tissue

Cancer genome copy number alterations (CNAs) assist clinicians in selecting targeted therapeutics. Solid tumor CNAs are most commonly evaluated in formalin-fixed, paraffin-embedded (FFPE) tissue by fluorescence in situ hybridization. Although fluorescence in situ hybridization is a sensitive and specific assay for interrogating pre-selected genomic regions, it provides no information about co-existing clinically significant copy number changes. Chromosomal microarray analysis is an alternative DNA-based method for interrogating genome-wide CNAs in solid tumors.

Source: Journal of Molecular Diagnostics - February 19, 2018 Category: Pathology Authors: Shelly R. Gunn, Shailin Govender, Cynthe L. Sims, Aditi Khurana, Samuel Koo, Jayne Scoggin, Mathew W. Moore, Philip D. Cotter Tags: Technical Advance Source Type: research