Spatial analysis of intranuclear human repetitive DNA regions by in situ hybridization and digital fluorescence microscopy

Non-isotopic (fluorescent) in situ hybridization has established itself as a useful technique for the localization of DNA sequences in both metaphase and interphase cells. The rapid development of digital fluorescence microscopy, especially confocal microscopy, has become a powerful aid for the evaluation of the hybridization results in cytogenetic and cell biological applications. In this review we will demonstrate the utility of these methodologies for the three-dimensional visualization and analysis of chromosome-specific (peri)centromeric repetitive DNA sequences within the intranuclear structure of human cells and cell lines.

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