Bcl6 Gene Rearrangement and Other Cytogenetic Abnormalities in Diffuse Large Cell Lymphoma

Publication Type

Journal Article

Publication Date

1-1995

Abstract

Evidence for rearrangement of the BCL6 gene at 3q27 has been documented in 20-30% of diffuse lymphomas with a large cell component (DLLC), and was found to be of prognostic significance at the time of diagnosis. To incorporate these observations into current cytogenetic and clinical prognostic models, 76 cases of DLLC with known BCL6 status were analyzed. Cytogenetic indicators of progression, including trisomy 7, trisomy 12, del(6)(q21q25), and structural alterations of 17p were less frequent in BCL6 rearranged DLLC compared to BCL6 germline tumors. Despite a 93% overall survival at median follow-up of 30 months, a trend for continued relapse resulted in a projected freedom from progression for the BCL6 rearranged cohort of 66% at 4 years, compared to 39% for the BCL6 germline cohort. Six cases among the BCL6 rearranged group lacked additional cytogenetic indicators of progression and remained free of disease at follow-up in excess of 7 years, whereas BCL6 rearranged cases with increasing numbers of cytogenetic aberrations showed decreased intervals free from progression of disease. These results suggest that BCL6 rearrangement should be combined with other known clinical and cytogenetic indicators in prognostic analyses of patients with DLLC.

Keywords

Hodgkin's lymphoma, cytogenetics, chromosome, prognosis

Discipline

Econometrics | Medicine and Health Sciences

Research Areas

Econometrics

Publication

Leukemia and Lymphoma

Volume

20

Issue

1

First Page

85

Last Page

89

ISSN

1042-8194

Identifier

10.3109/10428199509054757

Publisher

Taylor & Francis

Additional URL

https://doi.org/10.3109/10428199509054757

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