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자료유형
학술저널
저자정보
Wei Jiang (Fudan University) Libing Xiang (Fudan University Shanghai Cancer Center/Shanghai Medical College Fudan University) Xuan Pei Tiancong He Xuxia Shen Xiaohua Wu Huijuan Yang
저널정보
대한부인종양학회 Journal of Gynecologic Oncology Journal of Gynecologic Oncology Vol.29 No.1
발행연도
2018.1
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1 - 11 (11page)

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Objective: The predictive and prognostic role of KRAS mutations in cervical cancer remainsinconclusive. The aim of this study was to explore the clinicopathological and prognosticrelevance of KRAS mutations in invasive cervical cancers (ICC). Methods: Reverse transcription polymerase chain reaction (PCR) and Sanger sequencingwere employed to detect KRAS mutations in 876 ICC patients. Quantitative real-time PCR wasused to detect human papillomavirus (HPV) 16 and HPV 18. Results: Non-synonymous mutations of KRAS were identified in 30 (3.4%) patients. Thesemutations were more common in non-squamous cell carcinoma than in squamous cellcarcinoma (SCC) (8.2% vs. 2.2%, respectively, p<0.001) and were associated with HPV 18infection (p=0.003). The prevalence of mutations was highest (18.2%) in the uncommonhistological subtypes followed by adenocarcinoma (AC, 7.3%) and adenosquamouscarcinoma (ASC, 5.8%). During the median follow-up of 55 months, compared to patientswith wild-type KRAS, a greater percentage of patients with mutant KRAS relapsed (20.0%vs. 42.9%, respectively, p=0.007). The 3-year relapse-free survival was poorer in patientswith mutant KRAS than in patients without KRAS mutations (57.1% vs. 81.9%, respectively,p=0.001). Furthermore, the multivariate analysis showed that the presence of a KRASmutation was an independent predictor for disease recurrence (hazard ratio [HR]=2.064;95% confidence interval [CI]=1.125–3.787; p=0.019). Conclusion: KRAS mutations were predominant in non-SCCs of the cervix and wereassociated with HPV 18 infection. A combination of KRAS mutation detection andHPV genotyping would be useful in identifying patient with poor prognosis for furtherinterventions.

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