Histopathology · 1999
Blastic transformation of mantle cell lymphoma: genetic evidence for a clonal link between the two stages of the tumour.
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László T, Matolcsy A
Аннотация
AIMS: The blastic variant of mantle cell lymphoma (MCL-BV) may develop through histological transformation of mantle cell lymphoma (MCL). However, the clonal link between the tumour cells of MCL and transformed MCL-BV has not been established at the genetic level. To investigate this link longitudinal molecular genetic studies have been performed in two cases of MCL that showed morphological transformation to MCL-BV.
METHODS AND RESULTS: Polymerase chain reaction (PCR) and nucleotide sequence analyses of the complementary determining region 3 (CDR) of the immunoglobulin (Ig) heavy chain (H) gene were performed to identify clone-specific rearrangements. In both cases, nucleotide sequence analysis revealed common clone-specific IgH gene rearrangements in MCL and subsequent MCL-BV.
CONCLUSIONS: These results provide genetic evidence for the common clonal origin of MCL and subsequently developed MCL-BV.
METHODS AND RESULTS: Polymerase chain reaction (PCR) and nucleotide sequence analyses of the complementary determining region 3 (CDR) of the immunoglobulin (Ig) heavy chain (H) gene were performed to identify clone-specific rearrangements. In both cases, nucleotide sequence analysis revealed common clone-specific IgH gene rearrangements in MCL and subsequent MCL-BV.
CONCLUSIONS: These results provide genetic evidence for the common clonal origin of MCL and subsequently developed MCL-BV.