Abstract
Gastric cancer is of major importance world-wide representing the second most common cause of cancer related death in the world. Data concerning the chromosomal changes in gastric cancer are limited and no specific change has been identified to date. We have studied cytogenetically 15 cases of primary gastric cancer by direct culture of tumors cells and G-banding technique. We focused on structural aberrations observed in order to identify non-random aberrations presenting common chromosomal breakpoints. Chromosomes most commonly involved were according to frequency 1,11,14,7,17,6,8 and 13. Chromosome 11 was involved as add(11)(p15), while the pericentromeric area of chromosome 14 was constantly participated in aberrations. Isochromosomes i(1q), i(8q), i(13q), i(14q) and i(17q) were constantly found. Furthermore translocations t(1;7), t(7;14), t(6;17) and t(5;14) were identified. Conventional cytogenetics continues to be valuable in cancer study detecting genomic areas potentially candidate for the isolation of genes related to carcinogenesis.
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