山东医药
山東醫藥
산동의약
SHANDONG MEDICAL JOURNAL
2015年
3期
8-10
,共3页
子宫肿瘤%宫颈癌%长散布核元件-1%DNA甲基化
子宮腫瘤%宮頸癌%長散佈覈元件-1%DNA甲基化
자궁종류%궁경암%장산포핵원건-1%DNA갑기화
cervical lesions%cervical cancer%long interspersed nucleotid element-1%DNA methylation
目的:观察持续性高危型人乳头瘤病毒( HR-HPV)阳性的宫颈癌组织中长散布核元件-1( L1)基因甲基化水平变化,并探讨其意义。方法收集HR-HPV均阳性的正常宫颈组织、宫颈上皮内瘤变( CIN) I组织、CINⅡ~Ⅲ组织及宫颈癌组织各30份。采用亚硫酸氢盐转化结合焦磷酸测序技术对所有组织DNA的L1序列3个CpG位点进行甲基化定量检测,评价其对子宫颈癌和CIN的诊断价值。结果正常宫颈组织、CIN Ⅰ组织、CINⅡ~Ⅲ组织及宫颈癌组织中L1基因平均甲基化水平分别为0.590±0.053、0.570±0.038、0.560±0.025、0.490±0.054,宫颈癌组织中L1基因平均甲基化水平与其他组织中比较,P均<0.001。选取L1基因启动子区甲基化水平的截断值为53.17%,此时其判断宫颈病变性质的灵敏度及特异度均为86.70%。95%置信区间(CI)为0.834~0.976。结论HR-HPV阳性的宫颈癌组织中L1基因甲基化水平明显降低。 L1基因启动子区甲基化水平为53.17%时,有助于宫颈病变性质的判断。
目的:觀察持續性高危型人乳頭瘤病毒( HR-HPV)暘性的宮頸癌組織中長散佈覈元件-1( L1)基因甲基化水平變化,併探討其意義。方法收集HR-HPV均暘性的正常宮頸組織、宮頸上皮內瘤變( CIN) I組織、CINⅡ~Ⅲ組織及宮頸癌組織各30份。採用亞硫痠氫鹽轉化結閤焦燐痠測序技術對所有組織DNA的L1序列3箇CpG位點進行甲基化定量檢測,評價其對子宮頸癌和CIN的診斷價值。結果正常宮頸組織、CIN Ⅰ組織、CINⅡ~Ⅲ組織及宮頸癌組織中L1基因平均甲基化水平分彆為0.590±0.053、0.570±0.038、0.560±0.025、0.490±0.054,宮頸癌組織中L1基因平均甲基化水平與其他組織中比較,P均<0.001。選取L1基因啟動子區甲基化水平的截斷值為53.17%,此時其判斷宮頸病變性質的靈敏度及特異度均為86.70%。95%置信區間(CI)為0.834~0.976。結論HR-HPV暘性的宮頸癌組織中L1基因甲基化水平明顯降低。 L1基因啟動子區甲基化水平為53.17%時,有助于宮頸病變性質的判斷。
목적:관찰지속성고위형인유두류병독( HR-HPV)양성적궁경암조직중장산포핵원건-1( L1)기인갑기화수평변화,병탐토기의의。방법수집HR-HPV균양성적정상궁경조직、궁경상피내류변( CIN) I조직、CINⅡ~Ⅲ조직급궁경암조직각30빈。채용아류산경염전화결합초린산측서기술대소유조직DNA적L1서렬3개CpG위점진행갑기화정량검측,평개기대자궁경암화CIN적진단개치。결과정상궁경조직、CIN Ⅰ조직、CINⅡ~Ⅲ조직급궁경암조직중L1기인평균갑기화수평분별위0.590±0.053、0.570±0.038、0.560±0.025、0.490±0.054,궁경암조직중L1기인평균갑기화수평여기타조직중비교,P균<0.001。선취L1기인계동자구갑기화수평적절단치위53.17%,차시기판단궁경병변성질적령민도급특이도균위86.70%。95%치신구간(CI)위0.834~0.976。결론HR-HPV양성적궁경암조직중L1기인갑기화수평명현강저。 L1기인계동자구갑기화수평위53.17%시,유조우궁경병변성질적판단。
Objective To observe the changes of methylation level of the long interspersed nucleotid element -1(L1)in persistent high-risk human papillomavirus ( HR-HPV) positive cervical cancer tissue and its significance .Methods Thirty tissue samples were collected in all HR-HPV infected normal cervix , cervical intraepithelial neoplasia ( CIN)Ⅰ, CINⅡ-CINⅢand cervical cancer respectively .Three CpG sites methylation levels of the L 1 of all tissues were quantitatively ana-lyzed by bisulphite conversion and pyrosequencing technology .Evaluated its diagnostic value in cervical cancer and CIN . Results The mean levels and standard deviation of the L 1 promoter methylation level of normal cervix tissue , CINⅠtis-sue, CINⅡ~Ⅲtissue and cervical cancer tissue were 0.59 ±0.053, 0.57 ±0.038, 0.56 ±0.025, 0.49 ±0.054 re-spectively.Compared the L1 promoter mean methylation level of cervical cancer tissues with other tissues , all P<0.001. Selected the cutoff value of the L 1 gene methylation level as 53 .17%, both the sensitivity and specificity to judge the prop-erty of cervical lesions were 86.70%, with the 95%confidence interval (CI) was 0.834~0.976.Conclusions The L1 gene methylation level of HR-HPV positive cervical cancer tissue decrease significantly .It helps to judge the property of cervical lesions with the L1 gene promoter methylation level of 53.17%.