Abstract
Comparative genomic hybridization (CGH) was carried out in 30 mantle cell lymphoma (MCL) patients at the time of diagnosis. CGH results were supported by conventional cytogenetics (CC), FISH, molecular genetic PCR methods and 2 patients were examined by array CGH. Using all cytogenetic, molecular cytogenetic and PCR methods, chromosomal changes were detected in 28 (93%) patients. Using CGH, unbalanced chromosomal changes were detected in 24 (80%) cases. The most frequent aberrations were losses of 1p (8 cases), 8p (10 cases), 9q (6 cases), 11q (11 cases), 13q (10 cases) and 17p (9 cases), and gains of chromosome 3 and 3q (12 cases) and 8q (7 cases). Total number of 60 gains and 116 losses were detected. The primary chromosomal change t(11;14) was detected using FISH and/or PCR in 20 (66.6%) patients, and in 9 of them, the breakpoint was determined using PCR in the major translocation cluster (MTC). The evaluation of the frequencies of CGH changes in groups of patients with and without t(11;14) revealed the differences only in losses 6q and 9q, which were only found in patient with t(11;14). An important result was obtained using array CGH method. In a patient without the primary t(11;14), the gain of CCND1 gene was found. Our r...Continue Reading
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