scholarly journals Lymphomas with concurrent BCL2 and MYC translocations: the critical factors associated with survival

Blood ◽  
2009 ◽  
Vol 114 (11) ◽  
pp. 2273-2279 ◽  
Author(s):  
Nathalie A. Johnson ◽  
Kerry J. Savage ◽  
Olga Ludkovski ◽  
Susana Ben-Neriah ◽  
Ryan Woods ◽  
...  
Keyword(s):  
Overall Survival ◽  
B Cell ◽  
Cell Lymphoma ◽  
International Prognostic Index ◽  
Prognostic Index ◽  
B Cell Lymphoma ◽  
International Prognostic Index Score ◽  
Risk Patients ◽  
Bcl2 Protein

Abstract BCL2 and MYC are oncogenes commonly deregulated in lymphomas. Concurrent BCL2 and MYC translocations (BCL2+/MYC+) were identified in 54 samples by karyotype and/or fluorescence in situ hybridization with the aim of correlating clinical and cytogenetic characteristics to overall survival. BCL2+/MYC+ lymphomas were diagnosed as B-cell lymphoma unclassifiable (BCLU; n = 36) with features intermediate between Burkitt lymphoma and diffuse large B-cell lymphoma (DLBCL); DLBCL (n = 17), or follicular lymphoma (n = 1). Despite the presence of a t(14;18), 5 cases were BCL2 protein–negative. Nonimmunoglobulin gene/MYC (non-IG/MYC) translocations occurred in 24 of 54 cases (44%) and were highly associated with DLBCL morphology (P < .001). Over a median follow-up of 5.3 years, 6 patients remained in remission and 32 died within 6 months of the MYC+ rearrangement, irrespective of whether MYC+ occurred at diagnosis (31 of 54) or transformation (23 of 54; P = .53). A non-IG/MYC translocation partner, absent BCL2 protein expression and treatment with rituximab-based chemotherapy, were associated with a more favorable outcome, but a low International Prognostic Index score and DLBCL morphology were independent predictors of overall survival. A comprehensive cytogenetic analysis of BCL2 and MYC status on all aggressive lymphomas may identify a group of high-risk patients who may benefit from chemotherapeutic regimens that include rituximab and/or BCL2-targeted therapy.

scholarly journals Concurrent Expression of MYC and BCL2 in Diffuse Large B-Cell Lymphoma Treated With Rituximab Plus Cyclophosphamide, Doxorubicin, Vincristine, and Prednisone

2012 ◽  
Vol 30 (28) ◽  
pp. 3452-3459 ◽  
Author(s):  
Nathalie A. Johnson ◽  
Graham W. Slack ◽  
Kerry J. Savage ◽  
Joseph M. Connors ◽  
Susana Ben-Neriah ◽  
...  
Keyword(s):  
Protein Expression ◽  
B Cell ◽  
Cell Lymphoma ◽  
Molecular Subtype ◽  
International Prognostic Index ◽  
Prognostic Index ◽  
B Cell Lymphoma ◽  
Large B Cell Lymphoma ◽  
Bcl2 Protein ◽  
Large B Cell

Purpose Diffuse large B-cell lymphoma (DLBCL) is curable in 60% of patients treated with rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP). MYC translocations, with or without BCL2 translocations, have been associated with inferior survival in DLBCL. We investigated whether expression of MYC protein, with or without BCL2 protein expression, could risk-stratify patients at diagnosis. Patients and Methods We determined the correlation between presence of MYC and BCL2 proteins by immunohistochemistry (IHC) with survival in two independent cohorts of patients with DLBCL treated with R-CHOP. We further determined if MYC protein expression correlated with high MYC mRNA and/or presence of MYC translocation. Results In the training cohort (n = 167), MYC and BCL2 proteins were detected in 29% and 44% of patients, respectively. Concurrent expression (MYC positive/BCL2 positive) was present in 21% of patients. MYC protein correlated with presence of high MYC mRNA and MYC translocation (both P < .001), but the latter was less frequent (both 11%). MYC protein expression was only associated with inferior overall and progression-free survival when BCL2 protein was coexpressed (P < .001). Importantly, the poor prognostic effect of MYC positive/BCL2 positive was validated in an independent cohort of 140 patients with DLBCL and remained significant (P < .05) after adjusting for presence of high-risk features in a multivariable model that included elevated international prognostic index score, activated B-cell molecular subtype, and presence of concurrent MYC and BCL2 translocations. Conclusion Assessment of MYC and BCL2 expression by IHC represents a robust, rapid, and inexpensive approach to risk-stratify patients with DLBCL at diagnosis.

scholarly journals Prognostic value of age-adjusted international prognostic index in patients with relapsed or refractory diffuse large b-cell lymphoma - a single centre experience

2019 ◽  
Vol 72 (1-2) ◽  
pp. 25-29
Author(s):  
Maja Popovic ◽  
Gorana Matovina-Brko ◽  
Dragana Petrovic ◽  
Bojana Vranjkovic ◽  
Jelena Radic ◽  
...  
Keyword(s):  
Overall Survival ◽  
B Cell ◽  
Cell Lymphoma ◽  
International Prognostic Index ◽  
Prognostic Index ◽  
Progression Free Survival ◽  
B Cell Lymphoma ◽  
Late Relapse ◽  
Large B Cell Lymphoma ◽  
Large B Cell

Introduction. The research aimed to evaluate the impact of age-adjusted international prognostic index and time to the first relapse on overall survival and progression-free survival from the beginning of the second line of treatment in patients with relapsed/ refractory diffuse large B-cell lymphoma. Material and Methods. The research included 36 patients with relapsed/refractory diffuse large B-cell lymphoma treated at the Oncology Institute of Vojvodina, Serbia, from January 2013 to December 2015. Patients were stratified according to age-adjusted international prognostic index score at the time of relapse into patients with low risk (score 0 - 1) and patients with high risk (score 2 - 3), as well as according to the time of the first relapse: early relapse (? 12 months) and late relapse (> 12 months). Results. In the group of patients with a score of 0 - 1, the median overall survival was 44 months compared with 6 months in patients with score of 2 - 3, hazard ratio 0,4 (confidence interval 0,16 - 0,99), p = 0,03. In patients with early relapse, the median overall survival was 7 months compared with 25 months in patients with late relapse, hazard ratio 0,55 (confidence interval 0,25 - 1,19), p = 0,12. In patients with early relapse, median progression-free survival was 0 months compared with 10 months in patients with late relapse, hazard ratio 0,34 (confidence interval 0,12 - 1,00), p = 0,0017. Conclusion. The impact of age-adjusted international prognostic index score significantly affects overall survival in patients with relapsed diffuse large B-cell lymphoma. The time to the first relapse impacts progression-free survival calculated from the time of the second-line treatment initiation.

Germinal center phenotype and bcl-2 expression combined with the International Prognostic Index improves patient risk stratification in diffuse large B-cell lymphoma

Blood ◽  
2002 ◽  
Vol 99 (4) ◽  
pp. 1136-1143 ◽  
Author(s):  
Sharon L. Barrans ◽  
Ian Carter ◽  
Roger G. Owen ◽  
Faith E. Davies ◽  
Russell D. Patmore ◽  
...  
Keyword(s):  
Overall Survival ◽  
High Risk ◽  
Germinal Center ◽  
Cell Lymphoma ◽  
International Prognostic Index ◽  
Prognostic Index ◽  
B Cell Lymphoma ◽  
Large B Cell Lymphoma ◽  
Risk Patients ◽  
Large B Cell

The International Prognostic Index (IPI) identifies poor- and good-risk patients with diffuse large B cell lymphoma (DLBCL); however, the majority of patients have an intermediate IPI, with an uncertain prognosis. To determine whether cellular factors can be combined with the IPI to more accurately predict outcome, we have analyzed 177 presentation nodal DLBCLs for the expression of bcl-2 and a germinal center (GC) phenotype (defined by expression of bcl-6 and CD10). P53 gene band shifts were detected using single-stranded conformational polymorphism polymerase chain reaction analysis of exons 5-9 and were correlated with protein expression. In a Cox regression analysis, IPI (R = 0.22, P &lt; .0001) and bcl-2 (R = 0.14, P = .0001) were independent poor prognostic factors and a GC phenotype predicted a favorable outcome (R = −0.025, P = .02). Neither p53 expression nor band shifts had a significant effect on survival. Using the IPI alone, 8% of patients were identified as high risk. Expression of bcl-2 in the intermediate IPI group identified a further 28% of patients with an overall survival comparable to the high IPI group. In the intermediate IPI, bcl-2− group, the presence of a GC phenotype improved overall survival to levels approaching the IPI low group. Following this analysis only 15% of patients failed to be assigned to a favorable- or poor-risk group. Sequential addition of bcl-2 expression and GC phenotype into the IPI significantly improves risk stratification in DLBCL. For the 36% of high-risk patients with a 2-year overall survival of 19%, alternative treatment strategies should be considered in future trials.

scholarly journals Results of immuno-chemotherapeutic treatment of patients with diffuse large B-cell lymphoma

2009 ◽  
Vol 150 (44) ◽  
pp. 2019-2026
Author(s):  
Tamás Schneider ◽  
Zsuzsanna Molnár ◽  
Beáta Deák ◽  
Erika Várady ◽  
Erika Tóth ◽  
...  
Keyword(s):  
B Cell ◽  
Cell Lymphoma ◽  
International Prognostic Index ◽  
Prognostic Index ◽  
B Cell Lymphoma ◽  
Index Score ◽  
International Prognostic Index Score ◽  
Large B Cell Lymphoma ◽  
Chemotherapeutic Treatment ◽  
Large B Cell

A cyclophosphamid-doxorubicin-vincristin-prednisolon (CHOP-) kezelés több mint 20 éven át standard kezelésnek számított a diffúz nagy B-sejtes lymphomák (DLBCL) elsődleges kezelésében. A CHOP-kezelést célzott immunterápiával, rituximabbal kiegészítve (R-CHOP) jelentős javulás volt elérhető e betegcsoport kezelésében. Magyar betegcsoporton még nem ismert olyan adat, amely a kezelés túlélésre kifejtett hatását vizsgálná. A szerzők célja az R-CHOP és az R-CHOP-like kezelés hatékonyságának elemzése volt. 2002. szeptember és 2005. április között 140 újonnan diagnosztizált, kezeletlen DLBCL-es beteg R-CHOP-kezelését kezdték. A vizsgálatba beválasztás előfeltétele az előrehaladott III–IV. klinikai stádium, vagy I–II. klinikai stádium esetén nagy tumor (>7 cm), és/vagy „B” tünet, illetve extranodalis manifesztáció voltak. Az eredményeket a korábbi években CHOP- és CHOP-like kezelésben részesült 130 beteg adataival vetették össze. A terápiás eredmények minden paramétert tekintve kedvezőbbnek bizonyultak az R-CHOP-kezeltek körében. Az átlagos 44, illetve 52 hónapos követési idő során a teljes remissziós arány 73,6% volt szemben a CHOP-csoportban észlelt 47,7%-kal. Az ötéves teljes túlélés 68,6% vs. 41,0% (RR: 0,4293, CI: 0,2963–0,6221; p < 0,0001), az eseménymentes túlélés 59,8% vs. 33,5% (RR: 0,5038, CI: 0,36,6–0,7038; p < 0,0001), míg a progressziómentes túlélés 64,4% vs. 37,6% (RR: 0,4915, CI: 0,3442–0,7019; p < 0,0001) volt. Mivel a prognosztikus paraméterek az R-CHOP-csoportban valamelyest kedvezőbbek voltak, ezért a Sehn által ajánlott módosított international prognostic index score beosztása alapján képzett betegcsoportok eredményeit is összevetették. Az alcsoportelemzés itt is szignifikáns különbségeket adott. Az ötéves teljes túlélés a jó prognózisú csoportban 74,4% vs. 47,9% (RR: 0,4475, CI: 0,2418–0,8285; p = 0,0084), a rossz prognózisú csoportban 52,0% vs. 28,8% (RR: 0,4989, CI: 0,3098–0,8035; p = 0,003) volt. A nagyon jó prognózisú csoportban a két csoport között statisztikai különbség az ötéves túlélési paraméterekben a már eleve igen nagy terápiás hatás és a kicsi esetszám miatt nem észlelhető (OS és EFS: CHOP: 100% és 62,5% vs. R-CHOP: 90,9% és 87,0%; p = 0,3873 és p = 0,1702). Rituximab hozzáadása a standard CHOP-kezeléshez a terápiás eredmények jelentős javulását eredményezte prognosztikus csoportoktól függetlenül. Az eredmények a nemzetközi irodalmi adatokkal összevethetők.

scholarly journals Impact of rituximab biosimilars on overall survival in diffuse large B-cell lymphoma: a Dutch population-based study

2021 ◽  
Vol 5 (15) ◽  
pp. 2958-2964
Author(s):  
Mirian Brink ◽  
Xaver U. Kahle ◽  
Joost S. P. Vermaat ◽  
Josee M. Zijlstra ◽  
Martine Chamuleau ◽  
...  
Keyword(s):  
Overall Survival ◽  
The Netherlands ◽  
B Cell ◽  
Cell Lymphoma ◽  
International Prognostic Index ◽  
Prognostic Index ◽  
B Cell Lymphoma ◽  
Cox Regression Analysis ◽  
Large B Cell Lymphoma ◽  
Large B Cell

Abstract In 2017, the European Medicines Agency approved rituximab biosimilars (R-biosimilars) for treatment of diffuse large B-cell lymphoma (DLBCL). Thereafter, the Netherlands was one of the first countries to implement R-biosimilars, given lower costs compared with rituximab originator (R-originator). This study’s objective was to investigate whether overall survival (OS) of patients with DLBCL receiving R-biosimilars is similar to patients treated with R-originator. DLBCL patients ≥18 years, diagnosed between 2014 and 2018, who received at least 1 cycle of rituximab combined with cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP) were identified in the Netherlands Cancer Registry. Patients were categorized into R-originator or R-biosimilars groups based on data from a central repository of the Dutch medicinal drug market. The primary end point was 3-year OS, defined as the time between diagnosis and all-cause death. By the end of 2018, 91% of purchased rituximab were biosimilars. In total, 4429 patients were identified with 876 in the R-biosimilars group and 3553 in the R-originator group. Patients in the R-biosimilars group less frequently received &gt;6 cycles of R-CHOP compared with patients treated with R-originator (24% vs 30%, P = .003). The 3-year OS did not differ between patients treated with R-originator or R-biosimilars (73% vs 73%, P = .855). This was confirmed with a multivariable Cox regression analysis accounting for sex, age, International Prognostic Index score, and number of R-CHOP cycles. In conclusion, the 3-year OS is similar for patients treated with CHOP in combination with R-originator or R-biosimilars and, therefore, favors the use of R-biosimilars in DLBCL treatment management.

Sign in / Sign up

Export Citation Format

Share Document