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- Title
Characterization of chromosomal aberrations in diffuse large B-cell lymphoma (DLBL) by G-banding and spectral karyotyping (SKY).
- Authors
Adam, P.; Steinlein, C.; Schmid, M.; Haralambieva, E.; Stöcklein, H.; Leich, E.; Rosenwald, A.; Müller-Hermelink, H. K.; Ott, G.
- Abstract
Cytogenetic chromosome analysis by classical G-banding was supplemented by spectral karyotyping (SKY) in 12 cases of diffuse large B-cell lymphoma (DLBL). SKY is a fluorescence in-situ-based, genome-wide screening technique allowing identification of genetic material even in highly condensed metaphase chromosomes of poor morphology. By simultaneous hybridization of whole chromosome painting probes onto tumor chromosome spreads genetic rearrangements are visualized permitting the clarification of even complex karyotype alterations and the identification of genetic material of previously unknown origin, so-called marker chromosomes. Taking the SKY results into account, we reevaluated the G-banding karyotypes initially carried out, thus generating a more precise karyotype in ten of twelve (83%) cases investigated. In particular, thirteen chromosomal rearrangements not correctly recognized by classical cytogenetics were identified, the genetic origin of seven marker chromosomes was elucidated and three structural genetic rearrangements were redefined. We found SKY to be a valuable technique to establish a definite karyotype in addition to classical cytogenetics. Copyright © 2006 S. Karger AG, Basel
- Subjects
CHROMOSOMAL rearrangement; KARYOTYPES; B cell lymphoma; CHROMOSOMES; CANCER genetics; GENETICS
- Publication
Cytogenetic & Genome Research, 2006, Vol 114, Issue 3/4, p274
- ISSN
1424-8581
- Publication type
Article
- DOI
10.1159/000094213