Cyclin D1-negative mantle cell lymphoma with cryptic t(12;14)(p13;q32) and cyclin D2 overexpression.
نویسندگان
چکیده
Virtually all cases of mantle cell lymphoma (MCL) carry the t(11;14)(q13;q32) translocation, leading to the juxtaposition of the CCND1/CYCLIND1 gene to the immunoglobulin heavy chain (IGH) joining region, resulting in cyclin D1 mRNA and protein overexpression.1-3 The existence of “true” MCL negative for cyclin D1 has been controversial but was recently substantiated by gene expression profiling.4 Fu et al reported 6 cases of cyclin D1-
منابع مشابه
To the editor: Cyclin D1-negative mantle cell lymphoma with cryptic t(12;14)(p13;q32) and cyclin D2 overexpression
Virtually all cases of mantle cell lymphoma (MCL) carry the t(11;14)(q13;q32) translocation, leading to the juxtaposition of the CCND1/CYCLIND1 gene to the immunoglobulin heavy chain (IGH) joining region, resulting in cyclin D1 mRNA and protein overexpression.1-3 The existence of “true” MCL negative for cyclin D1 has been controversial but was recently substantiated by gene expression profiling...
متن کاملTo the editor: Cyclin D1-negative mantle cell lymphoma with cryptic t(12;14)(p13;q32) and cyclin D2 overexpression
Virtually all cases of mantle cell lymphoma (MCL) carry the t(11;14)(q13;q32) translocation, leading to the juxtaposition of the CCND1/CYCLIND1 gene to the immunoglobulin heavy chain (IGH) joining region, resulting in cyclin D1 mRNA and protein overexpression.1-3 The existence of “true” MCL negative for cyclin D1 has been controversial but was recently substantiated by gene expression profiling...
متن کاملTranslocations targeting CCND2, CCND3, and MYCN do occur in t(11;14)-negative mantle cell lymphomas.
The genetics of t(11;14)(q13;q32)/cyclin D1-negative mantle cell lymphoma (MCL) is poorly understood. We report here 8 MCL cases lacking t(11;14) or variant CCND1 rearrangement that showed expression of cyclin D1 (2 cases), D2 (2 cases), and D3 (3 cases). One case was cyclin D negative. Cytogenetics and fluorescence in situ hybridization detected t(2;12)(p11;p13)/IGK-CCND2 in one of the cyclin ...
متن کاملDetection of cyclin D1 (bcl-1, PRAD1) overexpression by a simple competitive reverse transcription-polymerase chain reaction assay in t(11;14)(q13;q32)-bearing B-cell malignancies and/or mantle cell lymphoma.
In mantle cell lymphoma, the t(11;14)(q13;q32) and its molecular counterpart, bcl-1 rearrangement, are consistent features and lead to cyclin D1 (bcl-1, PRAD1) proto-oncogene overexpression. In order to detect cyclin D1 overexpression, we developed a simple assay involving a reverse transcription followed by competitive polymerase chain reaction (PCR). A single upstream primer was derived from ...
متن کاملCyclin D1-negative mantle cell lymphoma: a clinicopathologic study based on gene expression profiling.
Cyclin D1 overexpression is believed to be essential in the pathogenesis of mantle cell lymphoma (MCL). Hence, the existence of cyclin D1-negative MCL has been controversial and difficult to substantiate. Our previous gene expression profiling study identified several cases that lacked cyclin D1 expression, but had a gene expression signature typical of MCL. Herein, we report the clinical, path...
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عنوان ژورنال:
- Blood
دوره 111 3 شماره
صفحات -
تاریخ انتشار 2008