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. 1999 Aug;80(11):1803–1808. doi: 10.1038/sj.bjc.6690601

Molecular detection of tumour DNA in serum and peritoneal fluid from ovarian cancer patients

K P Hickey 1, K P Boyle 2, H M Jepps 2, A C Andrew 2, E J Buxton 1, P A Burns 2
PMCID: PMC2363116  PMID: 10468300

Abstract

We have analysed DNA extracted from the serum and peritoneal fluid of 20 ovarian cancer patients for the presence of tumour-specific genetic alterations. The 20 patients included six with stage Ia disease. Using six polymorphic microsatellite loci we were able to detect novel alleles or loss of heterozygosity in 17/20 serum samples and 12/19 peritoneal fluid samples. Tumour-specific abnormalities were detected in the serum of all but one of the stage Ia cases. Half of the occurrences of loss of heterozygosity identified in primary tumour material were detectable in the serum samples. Novel alleles indicative of microsatellite instability were found in 3/6 patients with stage Ia disease but in only 1/14 of patients with more advanced disease. One of the eight patients in the control group displayed abnormalities in her serum DNA. The ease with which tumour-specific alterations were detected in serum and peritoneal samples from ovarian cancer patients, using a panel of only six polymorphic microsatellite markers on four chromosomes, suggests that molecular detection methods could prove useful in the staging, monitoring and screening of this disease. © 1999 Cancer Research Campaign

Keywords: ovarian cancer, molecular detection, microsatellite instability, serum

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Selected References

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