Real world data on young patients with high-risk diffuse large B-cell lymphoma treated with R-CHOP or R-CHOEP - MYC, BCL2 and BCL6 as prognostic biomarkers
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Real world data on young patients with high-risk diffuse large B-cell lymphoma treated with R-CHOP or R-CHOEP - MYC, BCL2 and BCL6 as prognostic biomarkers. / Pedersen, Mette Ølgod; Gang, Anne Ortved; Brown, Peter; Pedersen, Michael; Knudsen, Helle; Nielsen, Signe Ledou; Poulsen, Tim; Wirenfeldt Klausen, Tobias; Høgdall, Estrid; Nørgaard, Peter.
In: PloS one, Vol. 12, No. 10, e0186983, 10.2017.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Real world data on young patients with high-risk diffuse large B-cell lymphoma treated with R-CHOP or R-CHOEP - MYC, BCL2 and BCL6 as prognostic biomarkers
AU - Pedersen, Mette Ølgod
AU - Gang, Anne Ortved
AU - Brown, Peter
AU - Pedersen, Michael
AU - Knudsen, Helle
AU - Nielsen, Signe Ledou
AU - Poulsen, Tim
AU - Wirenfeldt Klausen, Tobias
AU - Høgdall, Estrid
AU - Nørgaard, Peter
PY - 2017/10
Y1 - 2017/10
N2 - BACKGROUND: Double expression of MYC and BCL2 proteins (DE) and double-hit MYC+BCL2/BCL6 translocations (DH) were established as important biomarkers in patients with diffuse large B-cell lymphoma (DLBCL) by the 2016 revision of the World Health Organization classification of lymphoid neoplasms. Whether this applies to the subgroup of young patients with high risk DLBCL is not known. We previously found that in a uniform retrospective population-based cohort of patients aged 18-60 years with high-risk DLBCL, the addition of etoposide to R-CHOP chemotherapy (R-CHOEP) resulted in improved survival mainly in patients with germinal center B-cell like (GCB) immunophenotype. The aim of this study was to investigate the prognostic and predictive value of DE and DH in this patient cohort.METHODS: Data on all young Danish patients diagnosed with de novo high-risk DLBCL 2004-2008 and treated with R-CHOP or R-CHOEP were obtained from the Danish Lymphoma database (n = 159). Tumor samples were available from 103 patients. MYC and BCL2 proteins were analyzed with quantitative immunohistochemistry (IHC) using different cut off values. MYC-, BCL2- and BCL6-translocations were examined with fluorescent in situ hybridization (FISH).RESULTS: DE with MYC>75% and BCL2>85% was an independent negative prognostic marker of progression free survival (PFS) in patients treated with R-CHOP but not R-CHOEP (p<0.001), also after exclusion of patients with DH. A predictive effect of DE for response (PFS) to R-CHOEP vs. R-CHOP was almost significant (p = 0.07). DH was not prognostic in this patient cohort.CONCLUSION: In young patients with high-risk DLBCL, treatment with R-CHOEP may overcome the negative prognostic impact of DE observed in patients treated with R-CHOP.
AB - BACKGROUND: Double expression of MYC and BCL2 proteins (DE) and double-hit MYC+BCL2/BCL6 translocations (DH) were established as important biomarkers in patients with diffuse large B-cell lymphoma (DLBCL) by the 2016 revision of the World Health Organization classification of lymphoid neoplasms. Whether this applies to the subgroup of young patients with high risk DLBCL is not known. We previously found that in a uniform retrospective population-based cohort of patients aged 18-60 years with high-risk DLBCL, the addition of etoposide to R-CHOP chemotherapy (R-CHOEP) resulted in improved survival mainly in patients with germinal center B-cell like (GCB) immunophenotype. The aim of this study was to investigate the prognostic and predictive value of DE and DH in this patient cohort.METHODS: Data on all young Danish patients diagnosed with de novo high-risk DLBCL 2004-2008 and treated with R-CHOP or R-CHOEP were obtained from the Danish Lymphoma database (n = 159). Tumor samples were available from 103 patients. MYC and BCL2 proteins were analyzed with quantitative immunohistochemistry (IHC) using different cut off values. MYC-, BCL2- and BCL6-translocations were examined with fluorescent in situ hybridization (FISH).RESULTS: DE with MYC>75% and BCL2>85% was an independent negative prognostic marker of progression free survival (PFS) in patients treated with R-CHOP but not R-CHOEP (p<0.001), also after exclusion of patients with DH. A predictive effect of DE for response (PFS) to R-CHOEP vs. R-CHOP was almost significant (p = 0.07). DH was not prognostic in this patient cohort.CONCLUSION: In young patients with high-risk DLBCL, treatment with R-CHOEP may overcome the negative prognostic impact of DE observed in patients treated with R-CHOP.
KW - Adolescent
KW - Adult
KW - Antibodies, Monoclonal, Murine-Derived/administration & dosage
KW - Antineoplastic Combined Chemotherapy Protocols/therapeutic use
KW - Biomarkers, Tumor/genetics
KW - Cyclophosphamide/administration & dosage
KW - Doxorubicin/administration & dosage
KW - Etoposide/administration & dosage
KW - Female
KW - Humans
KW - Immunohistochemistry
KW - In Situ Hybridization, Fluorescence
KW - Kaplan-Meier Estimate
KW - Lymphoma, Large B-Cell, Diffuse/diagnosis
KW - Male
KW - Middle Aged
KW - Prednisone/administration & dosage
KW - Prognosis
KW - Proto-Oncogene Proteins c-bcl-2/genetics
KW - Proto-Oncogene Proteins c-bcl-6/genetics
KW - Proto-Oncogene Proteins c-myc/genetics
KW - Retrospective Studies
KW - Risk Factors
KW - Vincristine/administration & dosage
KW - Young Adult
U2 - 10.1371/journal.pone.0186983
DO - 10.1371/journal.pone.0186983
M3 - Journal article
C2 - 29088292
VL - 12
JO - PLoS ONE
JF - PLoS ONE
SN - 1932-6203
IS - 10
M1 - e0186983
ER -
ID: 195965916