A dynamic database of microarray-characterized cell lines with various cytogenetic and genomic backgrounds

Area of Science:

• Genetics
• Genomics
• Bioinformatics

Background:

• The National Institute of General Medical Sciences (NIGMS) Human Genetic Cell Repository houses over 11,000 cell lines and DNA samples.
• Existing cell lines have undergone conventional cytogenetic analyses.
• The repository supports research on diverse conditions, including chromosomal abnormalities and heritable diseases.

Purpose of the Study:

• To perform high-resolution genomic characterization of approximately 900 selected cell lines.
• To detect copy number variations and copy number neutral loss of heterozygosity.
• To create a dynamic, publicly accessible database integrating cytogenetic and genomic data.

Main Methods:

• Utilized the Affymetrix Genome-Wide Human SNP Array 6.0 for detailed genomic analysis.
• Focused on cell lines from the Chromosomal Aberrations and Heritable Diseases collections.
• Integrated newly generated genomic data with existing cytogenetic information.

Main Results:

• Generated detailed genomic profiles for approximately 900 cell lines.
• Identified copy number variations and copy neutral loss of heterozygosity.
• Constructed a comprehensive database of cytogenetic and genomic information.

Conclusions:

• The enhanced database provides valuable genomic insights for genetic research.
• Freely available data facilitates studies on genetic diseases and chromosomal abnormalities.
• The database will be dynamically updated with new analyses.