Abstract:
:The mutation status and usage of specific VH genes such as V3-21 and V1-69 are potentially independent pathogenic and prognostic factors in chronic lymphocytic leukemia (CLL). To investigate the role of antigenic stimulation, we analyzed the expression of genes involved in B-cell receptor (BCR) signaling/activation, cell cycle, and apoptosis control in CLL using these specific VH genes compared to VH mutated (VH-MUT) and VH unmutated (VH-UM) CLL not using these VH genes. V3-21 cases showed characteristic expression differences compared to VH-MUT (up: ZAP70 [or ZAP-70]; down: CCND2, P27) and VH-UM (down: PI3K, CCND2, P27, CDK4, BAX) involving several BCR-related genes. Similarly, there was a marked difference between VH unmutated cases using the V1-69 gene and VH-UM (up: FOS; down: BLNK, SYK, CDK4, TP53). Therefore, usage of specific VH genes appears to have a strong influence on the gene expression pattern pointing to antigen recognition and ongoing BCR stimulation as a pathogenic factor in these CLL subgroups.
journal_name
Bloodjournal_title
Bloodauthors
Kienle D,Benner A,Kröber A,Winkler D,Mertens D,Bühler A,Seiler T,Jäger U,Lichter P,Döhner H,Stilgenbauer Sdoi
10.1182/blood-2005-04-1483subject
Has Abstractpub_date
2006-03-01 00:00:00pages
2090-3issue
5eissn
0006-4971issn
1528-0020pii
2005-04-1483journal_volume
107pub_type
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