PMID- 18752503 OWN - NLM STAT- MEDLINE DCOM- 20081113 LR - 20220408 IS - 1365-2559 (Electronic) IS - 0309-0167 (Linking) VI - 53 IP - 2 DP - 2008 Aug TI - MYC translocation and an increased copy number predict poor prognosis in adult diffuse large B-cell lymphoma (DLBCL), especially in germinal centre-like B cell (GCB) type. PG - 205-17 LID - 10.1111/j.1365-2559.2008.03076.x [doi] AB - AIMS: Diffuse large B-cell lymphoma (DLBCL) is a heterogeneous disease with various genetic alterations. The aim was to investigate MYC, Bcl-2 and Bcl-6 translocations and copy number changes in adult DLBCLs to evaluate their clinicopathological features and prognostic implications. METHODS AND RESULTS: Gene status was examined using fluorescence in situ hybridization (FISH), and the results were analysed in the context of germinal centre B-cell (GCB) and non-GCB type of DLBCL based on immunohistochemistry. MYC translocation was observed in 9% (14 of 156), and an increased copy number (ICN) in 7.1% (11 of 156). MYC translocation was more common in GCB type (22%) than in non-GCB type (4.9%), and associated with advanced International Prognostic Index (IPI). MYC aberration, i.e. translocation or increased copy number (ICN), was significantly associated with shorter overall survival, especially for the GCB type. Bcl-2 translocation was rare (3.4%, five of 145), and ICN was observed in 11.7% (17 of 145), more frequently in non-GCB type (16%) than in GCB type (2.5%). Bcl-2 aberration tended to have an adverse effect on survival. In multivariate analysis, MYC ICN was an independent poor prognostic factor. CONCLUSIONS: Analyses of MYC and Bcl-2 status, i.e. translocation and ICN, in the context of DLBCL phenotype might help predict prognosis and determine therapeutic strategies. FAU - Yoon, S O AU - Yoon SO AD - Department of Pathology, Tumour Immunity Medical Research Centre, Seoul National University College of Medicine, Seoul, Korea. FAU - Jeon, Y K AU - Jeon YK FAU - Paik, J H AU - Paik JH FAU - Kim, W Y AU - Kim WY FAU - Kim, Y A AU - Kim YA FAU - Kim, J E AU - Kim JE FAU - Kim, C W AU - Kim CW LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Histopathology JT - Histopathology JID - 7704136 RN - 0 (MYC protein, human) RN - 0 (Proto-Oncogene Proteins c-bcl-2) RN - 0 (Proto-Oncogene Proteins c-bcl-6) RN - 0 (Proto-Oncogene Proteins c-myc) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - B-Lymphocytes/pathology MH - Female MH - *Gene Dosage MH - Germinal Center/*pathology MH - Humans MH - In Situ Hybridization, Fluorescence MH - Lymphoma, Large B-Cell, Diffuse/*diagnosis/*genetics/mortality/pathology MH - Male MH - Middle Aged MH - Predictive Value of Tests MH - Prognosis MH - Proto-Oncogene Proteins c-bcl-2/genetics MH - Proto-Oncogene Proteins c-bcl-6/genetics MH - Proto-Oncogene Proteins c-myc/*genetics MH - *Translocation, Genetic EDAT- 2008/08/30 09:00 MHDA- 2008/11/14 09:00 CRDT- 2008/08/30 09:00 PHST- 2008/08/30 09:00 [pubmed] PHST- 2008/11/14 09:00 [medline] PHST- 2008/08/30 09:00 [entrez] AID - HIS3076 [pii] AID - 10.1111/j.1365-2559.2008.03076.x [doi] PST - ppublish SO - Histopathology. 2008 Aug;53(2):205-17. doi: 10.1111/j.1365-2559.2008.03076.x.