Distinct types of diffuse large B-cell lymphoma identified by gene expression profiling - Nature

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ID: 272033
1970
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Abstract
Diffuse large B-cell lymphoma (DLBCL), the most common subtype of non-Hodgkin's lymphoma, is clinically heterogeneous: 40% of patients respond well to current therapy and have prolonged survival, whereas the remainder succumb to the disease. We proposed that this variability in natural history reflects unrecognized molecular heterogeneity in the tumours. Using DNA microarrays, we have conducted a systematic characterization of gene expression in B-cell malignancies. Here we show that there is diversity in gene expression among the tumours of DLBCL patients, apparently reflecting the variation in tumour proliferation rate, host response and differentiation state of the tumour. We identified two molecularly distinct forms of DLBCL which had gene expression patterns indicative of different stages of B-cell differentiation. One type expressed genes characteristic of germinal centre B cells (‘germinal centre B-like DLBCL’); the second type expressed genes normally induced during in vitro activation of peripheral blood B cells (‘activated B-like DLBCL’). Patients with germinal centre B-like DLBCL had a significantly better overall survival than those with activated B-like DLBCL. The molecular classification of tumours on the basis of gene expression can thus identify previously undetected and clinically significant subtypes of cancer.
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Authors Alizadeh, Ash A.;Eisen, Michael B.;Davis, R. Eric;Ma, Chi;Lossos, Izidore S.;Rosenwald, Andreas;Boldrick, Jennifer C.;Sabet, Hajeer;Tran, Truc;Yu, Xin;Powell, John I.;Yang, Liming;Marti, Gerald E.;Moore, Troy;Hudson, James;Lu, Lisheng;Lewis, David B.;Tibshirani, Robert;Sherlock, Gavin;Chan, Wing C.;Greiner, Timothy C.;Weisenburger, Dennis D.;Armitage, James O.;Warnke, Roger;Levy, Ronald;Wilson, Wyndham;Grever, Michael R.;Byrd, John C.;Botstein, David;Brown, Patrick O.;Staudt, Louis M.;Alizadeh, Ash A.;Eisen, Michael B.;Davis, R. Eric;Ma, Chi;Lossos, Izidore S.;Rosenwald, Andreas;Boldrick, Jennifer C.;Sabet, Hajeer;Tran, Truc;Yu, Xin;Powell, John I.;Yang, Liming;Marti, Gerald E.;Moore, Troy;Hudson, James;Lu, Lisheng;Lewis, David B.;Tibshirani, Robert;Sherlock, Gavin;Chan, Wing C.;Greiner, Timothy C.;Weisenburger, Dennis D.;Armitage, James O.;Warnke, Roger;Levy, Ronald;Wilson, Wyndham;Grever, Michael R.;Byrd, John C.;Botstein, David;Brown, Patrick O.;Staudt, Louis M.;
Journal Nature
Year 1970
DOI
doi:10.1038/35000501
URL
https://www.nature.com/articles/35000501
Keywords
Science humanities and social sciences multidisciplinary

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