Document Detail


Chromosomal aberrations accumulate in polyploid cells of high-grade squamous intraepithelial lesions (HSIL).
MedLine Citation:
PMID:  15448749     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Persistant infection with human papillomavirus (HPV) of the uterine cervix is related with cytological atypia (SIL), the oncogenic potential of which is unclear in a given time point of monitoring. HPV-induced genetic instability result in polyploidization as well as in low frequency random chromosome aberrations in squamous cells. In the present work we analyzed whether highly polyploid/aneuploid cells reflect genomic changes at the chromosomal level. 13 samples with the cytological diagnosis of HSIL were analyzed for HPV type and nuclear DNA content measured by laser scanning cytometry (LSC). Hyperdiploid cells with >5c and with >9c DNA content were further analyzed for numerical aberrations of the chromosomes 3 and 17 by fluorescence in situ hybridization (FISH) following repositioning. Cells with >5c DNA content were found more frequently than cells with >9c DNA content (5-98 and 1-44 cells, respectively). The FISH analysis demonstrated frequent polysomies, however, the rate of aneusomy (other than 2, 4, 8 or 16 chromosome copies) was significantly higher in cells with >9c DNA content than in cells with >5c DNA content or the normal diploid cells. The imbalance of chromosome 3 and 17 copy number was also increased in cells with >9c DNA content. Moreover, in three out of the 13 analyzed HSIL samples, recurrent abnormal chromosome 3/17 ratio was demonstrated in a significant part of the cells, indicating a common origin of these cells. Highly polyploid/aneuploid cells in HSIL accumulate cytogenetic aberrations detectable by FISH analysis. These cells may reflect early changes with tumorigenic potential in a very concentrated fashion.
Authors:
Gábor Méhes; Norbert Speich; Magdolna Bollmann; Reinhard Bollmann
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2004-09-25
Journal Detail:
Title:  Pathology oncology research : POR     Volume:  10     ISSN:  1219-4956     ISO Abbreviation:  Pathol. Oncol. Res.     Publication Date:  2004  
Date Detail:
Created Date:  2004-09-27     Completed Date:  2005-03-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9706087     Medline TA:  Pathol Oncol Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  142-8     Citation Subset:  IM    
Affiliation:
Institute of Pathology, Bonn-Duisdorf, Germany. mehesg@pathology.pote.hu
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MeSH Terms
Descriptor/Qualifier:
Cervical Intraepithelial Neoplasia / genetics*,  virology
Chromosome Aberrations
Chromosomes, Human, Pair 17 / genetics
Chromosomes, Human, Pair 3 / genetics
Female
Flow Cytometry
Humans
In Situ Hybridization, Fluorescence
Papillomaviridae
Papillomavirus Infections / complications,  genetics*
Polymerase Chain Reaction
Polyploidy*
Uterine Cervical Neoplasms / genetics*,  virology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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