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[Cancer Research 56, 950-954, March 1, 1996]
© 1996 American Association for Cancer Research

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Definition and Refinement of a Region of Loss of Heterozygosity at 11q23.3–q24.3 in Epithelial Ovarian Cancer Associated with Poor Prognosis

Hani Gabra1, J. E. Vivienne Watson, Karen J. Taylor2, James Mackay, Robert C. F. Leonard, C. Michael Steel, David J. Porteous and John F. Smyth

Imperial Cancer Research Fund Medical Oncology Unit and Medical Research Council Human Genetics Unit, Western General Hospital, Crewe Road, Edinburgh EH4 2XU [H. G., J. E. V. W., K. T., J. M., R. C. F. L., D. J. P., J. F. S.], and School of Biological and Medical Sciences, University of St. Andrews, St. Andrews, [C. M. S.], United Kingdom

Previous cytogenetic and loss of heterozygosity (LOH) data suggest that disruption of chromosome 11q23-qter occurs frequently in epithelial ovarian cancer and is associated with an adverse clinicopathological phenotype. Ten polymorphic microsatellite repeat loci were analyzed by PCR from the 11q22–q25 region between D11S35 and D11S968 in 40 ovarian tumors (including 31 epithelial ovarian cancers). Two distinct regions of loss were detected, suggesting possible sites for genes involved in epithelial ovarian neoplasia: a large centromeric region between D11S35 and D11S933 (11q22–q23.3) and a telomeric 8.5-Mb region lying between D11S934 and D11S1320 (11q23.3–24.3) not previously defined. LOH of the latter region but not the former one was significantly associated with poor survival, despite all tumors in this study having LOH somewhere on chromosome 11. This analysis provides a starting point for positional cloning.

1 To whom requests for reprints should be addressed.

2 Supported by a grant from the Scottish Hospitals Endowments Research Trust.

Received 12/29/95. Accepted 1/17/96.




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HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Cancer Research Clinical Cancer Research
Cancer Epidemiology Biomarkers & Prevention Molecular Cancer Therapeutics
Molecular Cancer Research Cancer Prevention Research
Cancer Prevention Journals Portal Cancer Reviews Online
Annual Meeting Education Book Meeting Abstracts Online
Copyright © 1996 by the American Association for Cancer Research.