2019
DOI: 10.21320/2500-2139-2019-12-3-271-277
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Rearrangements of Immunoglobulin Genes in Tumor Cells of Patients with Primary Mediastinal (Thymic) Large B-Cell Lymphoma

Abstract: Актуальность. Первичная медиастинальная (тимическая) В-крупноклеточная лимфома (ПМВКЛ)-это злокачественная опухоль, субстратом которой являются крупные атипичные лимфоидные клетки, экспрессирующие маркеры постгерминальной дифференцировки. Реаранжировки генов иммуноглобулинов при ПМВКЛ выявляются в 30-65 % случаев. При этом молекулы иммуноглобулинов не экспрессируются ни на поверхности, ни в цитоплазме опухолевых клеток. Цель. Оценить частоту В-клеточной клональности по реаранжировкам генов тяжелой/легких цепей… Show more

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“…They present maintenance of the B-program with an intense and homogeneous expression of B-cell markers (CD20, CD79a) [7] or transcription factors (BOB1 and OCT2) [8]. Immunoglobulin gene rearrangement is found in 35 to 65% [7,9]. With the appearance of classifications based on cell-of-origin, thanks to transcriptomic data, it appears that this entity, despite its non-GCB phenotype, is closer to the germinal center DLBCL (GC-DLBCL), instead of activated B-cell DLBCL (ABC-DLBCL), particularly when using reverse transcriptase multiplex ligation-dependent probe amplification (RT-MLPA) [10].…”
Section: Introductionmentioning
confidence: 99%
“…They present maintenance of the B-program with an intense and homogeneous expression of B-cell markers (CD20, CD79a) [7] or transcription factors (BOB1 and OCT2) [8]. Immunoglobulin gene rearrangement is found in 35 to 65% [7,9]. With the appearance of classifications based on cell-of-origin, thanks to transcriptomic data, it appears that this entity, despite its non-GCB phenotype, is closer to the germinal center DLBCL (GC-DLBCL), instead of activated B-cell DLBCL (ABC-DLBCL), particularly when using reverse transcriptase multiplex ligation-dependent probe amplification (RT-MLPA) [10].…”
Section: Introductionmentioning
confidence: 99%