Title |
De novo CD5-positive diffuse large B-cell lymphomas show high specificity for cyclin D2 expression
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Published in |
Diagnostic Pathology, May 2013
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DOI | 10.1186/1746-1596-8-81 |
Pubmed ID | |
Authors |
Takuro Igawa, Yasuharu Sato, Katsuyoshi Takata, Noriko Iwaki, Takehiro Tanaka, Naoko Asano, Yoshinobu Maeda, Yorihisa Orita, Naoya Nakamura, Shigeo Nakamura, Tadashi Yoshino |
Abstract |
D cyclins positively regulate the cell cycle and mediate the pathogenesis of some lymphomas. Cyclin D1 overexpression is the hallmark of mantle cell lymphoma, whereas cyclins D2 and D3 are reportedly not as specific to certain lymphomas as cyclin D1. In this study, cyclin D2 was found to be overexpressed in 98% of de novo CD5-positive diffuse large B-cell lymphomas (DLBCLs) (50/51) and in 28% of CD5-negative DLBCLs (14/51). A statistically significant difference was observed between these two groups (p<0.0001). In contrast, no statistical difference was found in the cyclin D3 expression between CD5-positive (18/51) and CD5-negative (24/51) DLBCLs (p=0.23). Based on these findings, cyclin D2 is therefore considered to be closely associated with de novo CD5-positive DLBCLs. This insight may be useful for overcoming the inferior survival of this aggressive lymphoma. |
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