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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2003-6-19
pubmed:abstractText
Patients with diffuse large B-cell lymphoma (DLBCL) rarely show relapse after 4 years of complete remission (CR). In this study, we addressed the following questions: (1) Does late-relapsing DLBCL represent clonally related disease or a second malignancy; and (2) is there a characteristic biologic background? In 10 of 13 DLBCL patients with relapse after 4 to 17 years, a clonal relationship was established based on identical IgH-sequences and/or identical bcl2-IgH translocation. Most (77%) showed features of germinal center (GC) cells, as defined by expression of CD10, bcl-2, and bcl-6 protein and ongoing immunoglobulin heavy chain variable region (VH) hypermutation. A GC phenotype was seen in 8 (20%) of 38 control patients matched for age, stage, and (extra)nodal localization with relapse within 2.5 years (P =.005). In conclusion, we have found evidence that late-relapsing DLBCL represents truly clonally related disease episodes in most cases and that this clinical behavior may be related to the biologic features of GC cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
324-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Very late relapse in diffuse large B-cell lymphoma represents clonally related disease and is marked by germinal center cell features.
pubmed:affiliation
Department of Pathology, Biomedics and Medical Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands. djong@nki.nl
pubmed:publicationType
Journal Article