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Related Experiment Videos

Oligonucleotide array comparative genomic hybridization.

Paul van den Ijssel, Bauke Ylstra

    Methods in Molecular Biology (Clifton, N.J.)
    |November 21, 2007
    PubMed
    Summary
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    Validated protocols for oligonucleotide array comparative genome hybridization (array CGH) enable high-resolution detection of copy number changes. This method is reproducible, requires minimal DNA, and works with archival samples.

    Area of Science:

    • Genomics
    • Molecular Biology
    • Cytogenetics

    Background:

    • Array comparative genome hybridization (array CGH) is a key technique for genome-wide copy number variation analysis.
    • Existing array CGH methods require optimization for high resolution and clinical sample utility.

    Purpose of the Study:

    • To present validated protocols for oligonucleotide-based array CGH.
    • To establish a high-resolution, reproducible array CGH platform.

    Main Methods:

    • Development and validation of in-house spotted oligonucleotide libraries for array CGH.
    • Optimization of protocols for DNA input and sample types.

    Main Results:

    • The oligonucleotide array CGH platform provides reproducible results.

    Related Experiment Videos

  • High-resolution detection of single copy gains, multicopy amplifications, and homozygous/heterozygous deletions.
  • Successful application with as little as 300 ng of input DNA, including archival tissues.

    • Conclusions:

    • Validated oligonucleotide array CGH protocols offer a powerful tool for detecting chromosomal copy number changes.
    • The method's sensitivity and low DNA input requirement make it suitable for clinical and research applications, especially with limited or archival samples.