Klin Onkol 2006; 19(Suppl2): 342-346.
Summary
Cancer is a disease characterized by genomic instability. One of the mechanisms that changes gene expression and gene function is DNA copy number changes. These changes mostly include gains and losses of chromosomal regions, which can be detected by molecular cytogenetic method: comparative genomic hybridization (CGH). On the basis of CGH a new method has been recently developed called array comparative genomic hybridization (array CGH). Array CGH improves the resolution of CGH and enables detailed analysis of chromosomal regions, detecting DNA sequence copy number changes. Modern array CGH technologies posses increased sensitivity and are able to define genomic regions related to cancer, and to identify genes lying within these regions. Such genes may be involved in critical signaling pathways and may play role in cancer development and progression. This work informs about the principle, significance and usage of array CGH method in detection of imbalanced
aberrations of cancer genome.
