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A population-based study of cellular markers in R-CHOP treated diffuse large B-cell lymphoma patients
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Klinisk och experimentell patologi. (Rose-Marie Amini)
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Klinisk och experimentell patologi.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
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2016 (engelsk)Inngår i: Acta Oncologica, ISSN 0284-186X, E-ISSN 1651-226X, Vol. 55, nr 9-10, s. 1126-1131Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Aim: To determine the prognostic significance of co-expression of MYC, BCL-2 and BCL-6 proteins in combination with other biomarkers and clinical characteristics within a population-based cohort of diffuse large B-cell lymphoma (DLBCL) patients uniformly treated with R-CHOP.

Patients and methods: The immunohistochemical (IHC) expression of CD10, BCL-2, BCL-6, MUM1, MYC, CD5, CD30, Ki-67 and p53 was evaluated in a retrospective, population-based study comprising 188 DLBCL patients treated with R-CHOP and diagnosed in Sweden between 2002 and 2012.

Results: Patients had a median age at diagnosis of 64 years (26-85 years) with a male:female ratio of 1.4:1. Approximately half (52%) of the patients presented with an International Prognostic Index (IPI) age adjusted (IPIaa)2. Median follow-up time was 51 months (range 0.4-158) and the five-year lymphoma-specific survival (LSS) was 76%, five-year overall survival (OS) was 65% and five-year progression-free survival (PFS) was 61%. A high Ki-67 value was found in 59% of patients, while p53 overexpression was detected in 12% of patients and MYC, BCL-2 and BCL-6 expression were detected in 42%, 55% and 74% of patients, respectively. IPIaa2 (p=0.002), Ki-6770% (p=0.04) and p53 overexpression50% (p=0.02) were associated with inferior LSS and OS. Co-expression of both MYC (>40%) and BCL-2 (>70%) proteins was detected in 27% of patients and correlated with a significantly inferior LSS (p=0.0002), OS (p=0.009) and PFS (p=0.03). In addition, triple expression of MYC, BCL-2 and BCL-6, also correlated with a significantly inferior LSS (p=0.02).

Conclusion: Concurrent expression of MYC and BCL-2 proteins, as detected by IHC, was strongly associated with an inferior survival in DLBCL patients treated with R-CHOP. Other markers affecting survival were triple expression of MYC, BCL-2 and BCL-6, IPIaa, high Ki-67 and p53 overexpression.

sted, utgiver, år, opplag, sider
2016. Vol. 55, nr 9-10, s. 1126-1131
HSV kategori
Forskningsprogram
Patologi
Identifikatorer
URN: urn:nbn:se:uu:diva-308051DOI: 10.1080/0284186X.2016.1189093ISI: 000385554200010OAI: oai:DiVA.org:uu-308051DiVA, id: diva2:1049398
Forskningsfinansiär
Swedish Cancer SocietyTilgjengelig fra: 2016-11-24 Laget: 2016-11-23 Sist oppdatert: 2019-03-29bibliografisk kontrollert

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Abdulla, MaysaaLaszlo, SofiaHedström, GustafBerglund, MattiasEnblad, GunillaAmini, Rose-Marie
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