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  • Title: Genotype study of non-Hodgkin's lymphoma.
    Author: Pitera R, Pitera JE, Mufti GJ, Salisbury JR.
    Journal: Pathol Res Pract; 1995 Jun; 191(5):444-55. PubMed ID: 7479363.
    Abstract:
    DNA from 47 patients with non-Hodgkin's lymphoma (NHL) was studied for immunoglobulin and T-cell receptor (TCR) gene rearrangements with Southern blot hybridization. In 83% of the cases the genotypic changes were consistent with immunophenotypic and morphologic examination. Two cases showed mixed genotype and 9 cases of B-cell NHL (67% of centroblastic, 36% of follicular and 33% of large cell anaplastic) showed a population of cells with TCR gamma rearrangements in addition to immunoglobulin rearranged bands. We compared the TCR gamma variable region usage in these rearrangements in B-cell NHL with T-cell NHL and reactive hyperplasia. In T-cell NHL TCR gamma variable regions located at the 3' part of the variable locus were used more often, whilst in B-cell NHL regions of the 5' portion of the locus were preferentially used. Our results confirm the genotypic heterogeneity of histologically defined subtypes of NHL.
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