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Detection of CCND1 gene copy number variations using multiplex ligation-dependent probe amplification and fluorescence in situ hybridization methods

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The CCND1 locus is located in 11q13 and encodes the G1–S regulatory protein, cyclin D1. Cyclin D1 is frequently amplified in various types of cancers, and is an attractive potential therapeutic target. Multiplex ligation-dependent probe amplification (MLPA) is a new, high-resolution method for the detection of amplification of numerous genes including CCND1 in small amounts of DNA fragments derived from formalin-fixed, paraffin-embedded material in a single reaction. This approach is, however, based on PCR and averages many different cells, so validation by morphological methods such as fluorescence in situ hybridization (FISH) is theoretically mandatory. Here we describe detection of CCND1 gene copy number variations by commercially available MLPA kits and FISH using a bacterial artificial chromosome (BAC) probe. © Springer Science+Business Media, LLC 2018.

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