期刊
GYNECOLOGIC ONCOLOGY
卷 96, 期 2, 页码 510-515出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ygyno.2004.10.035
关键词
LOH; chromosome 1; squamous cell carcinoma; cervix
Ojectives. We studied the loss of heterozygosity (LOH) in chromosome I in squamous cell carcinoma (SCC) of the uterine cervix and evaluated its clinical and pathological significance. Methods. Sixty-three highly polymorphic markers were used to Study the LOH in 84 SCC. Microdissection was performed to enrich the tumor cells population before the alleotyping study. The findings were correlated with clinicopathologic findings. Results. LOH was detected in all but one SCC. The number of loci showing LOH in each case ranged from 0 to 41. Five loci showed LOH in greater than or equal to30% SCC and 28 other loci had an LOH frequency between 20% and 30%. Six of the eight markers located at 1p36.21 to 1p36.33 had a frequency of LOH >20%. Shortened total survival was associated with LOH at 14 loci and shortened disease-free Survival was associated with LOH at 11 loci while LOH at nine loci were associated with both. A high frequency of LOH was associated with stage as well as shortened total and disease-free survival. Conclusions. LOH is a common and early event in the development of cervical SCC. Turner suppressor genes may be present at 1p36. The incidence of LOH increases as the tumor progresses but a high frequency of LOH is not an independent prognostic factor. (C) 2004 Elsevier Inc. All rights reserved.
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