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  • Title: Characterization of t(11;14) translocation in mantle cell lymphoma by fluorescent in situ hybridization.
    Author: Bigoni R, Negrini M, Veronese ML, Cuneo A, Castoldi GL, Croce CM.
    Journal: Oncogene; 1996 Aug 15; 13(4):797-802. PubMed ID: 8761301.
    Abstract:
    Characterization of chromosome abnormalities in leukemia and lymphoma have contributed to the understanding of the molecular basis of these neoplastic diseases. In addition, specific chromosomal aberrations have acquired diagnostic or prognostic value. The t(11;14)(q13;q32) chromosome translocation has been detected in mantle cell lymphomas. However, possibly due to the limits of conventional cytogenetic analysis and the presence of different breakpoints at the molecular level, it is possible that the true percentage of association is underestimated. In our study, we used a yeast artificial chromosome, spanning the entire area where the rearrangements occur on chromosome 11q13, to detect the presence of translocations by fluorescent in situ hybridization experiments. We detected BCL-1 translocations in eight of eight patients with clinical and immunological features of mantle cell lymphoma, suggesting that the t(11;14) translocation is a critical event in the pathogenesis of MCL and may be a primary element for the diagnosis. Since this translocation is associated with poor prognosis, its detection may help to make a correct diagnosis as well as to evaluate residual disease, which is critical to plan a rational chemotherapy regimen.
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