Abstract:
:Polymerase chain reaction (PCR) analysis of microsatellite polymorphisms corresponding to four loci which map to chromosome 17p and 11 loci which map to chromosome 17q was performed to screen for loss of heterozygosity (LOH) in paired normal and tumor tissues from 27 cases of borderline epithelial ovarian tumors (BEOT) and 32 cases of invasive epithelial ovarian cancers (IOC). LOH was observed in six of 27 (22%) of the borderline tumors and in 29 of 32 (90%) of the invasive ovarian cancers (P<0.001). At all 15 loci studied, a lower percentage of allelic loss was detected in borderline tumors (0-14%) vs invasive cancer (8-93%). At eight loci this difference was statistically significant. For IOC, one common loss region was identified on chromosome 17p and four distinct common loss regions were on chromosome 17q, which supports the notion that multiple tumor suppressors may reside on chromosome 17 in IOC. These data suggest that LOH on chromosome 17 is an infrequent event in BEOT compared with IOC and therefore may not be important in the distinct pathogenesis of BEOT.
journal_name
Oncogenejournal_title
Oncogeneauthors
Wertheim I,Tangir J,Muto MG,Welch WR,Berkowitz RS,Chen WY,Mok SCsubject
Has Abstractpub_date
1996-05-16 00:00:00pages
2147-53issue
10eissn
0950-9232issn
1476-5594journal_volume
12pub_type
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