人乳头状瘤病毒负荷量与子宫颈癌及其癌前病变关系的初步研究

目的　探讨人乳头状瘤病毒 (HPV)负荷量与子宫颈癌及其癌前病变的关系。方法 2 0 0 1年 12月～ 2 0 0 2年 5月 ,对山西省宫颈癌高发现场的 90 75例 35～ 5 0岁的已婚妇女 ,采用杂交捕获二代(HC Ⅱ )方法定量检测宫颈HPV DNA的含量 (以此表示宫颈HPV负荷量 )。对其中HPV DNA阳性妇女 ,随后进行阴道镜检查、宫颈多点活检和颈管诊刮术。结果　 2 0 87例HPV阳性妇女中 ,子宫颈炎14 0 2例 (6 7 2 % ) ,子宫颈癌前病变 [包括子宫颈上皮内瘤变 (CIN)Ⅰ～Ⅲ ]6 6 3例 (31 8% ) ,子宫颈浸润癌 (SCC) 2 2例 (1 1% )。急、慢性宫颈炎的HPV DNA含量分别为 10 8± 13和 15 0± 11,两者比较 ,差异无显著性 (P =0 2 5 5 ) ;不同级别子宫颈癌前病变的HPV DNA含量 ,CINⅠ为 332± 2 9,CINⅡ为 35 8±35 ,CINⅢ为 370± 31,均明显高于宫颈炎 (P =0 0 0 0 ) ,但不同级别CIN之间比较 ,差异无显著性 (P >0 0 5 ) ;SCC的HPV DNA含量为 5 93± 86 ,显著高于不同级别CIN和宫颈炎的HPV DNA含量 (P <0 0 5 ,P <0 0 1)。结论　HC Ⅱ方法是检测宫颈HPV感染的有效手段 ,HPV DNA含量随宫颈病变的严重程度而增加 ,可作为子宫颈癌的一种初筛方法。

Preliminary study on the relationship between loads of human papillomavirus in cervical carcinoma and cervical intraepithelial neoplasia

OBJECTIVE: To explore the relationship between loads of human papillomavirus in cervical carcinoma and cervical intraepithelial neoplasia. METHODS: From December 2001 to May 2002, 9075 married women aged from 35 to 50 years who lived in the areas with a high incidence of cervical carcinoma of Shanxi Province were screened high risk types of human papillomavirus (HPV) infection using hybrid capture II (HC-II). Of them, 2087 women with positive human papillomavirus further underwent colposcopy and multi-focal directed punch biopsies plus endocervical currettage. RESULTS: Two thousand and eighty-seven women were found with positive human papillomavirus infection, comprising 1402 (67.2%) women who were diagnosed as cervicitis, 663 (31.8%) women diagnosed as cervical intraepithelial neoplasia [including cervical intraepithelial neoplasia (CIN) I to III], and 22 (1.1%) women diagnosed as cervical squamous cell carcinoma (SCC). HPV-DNA loads of women with chronic and acute cervicitis were 150 +/- 11 and 108 +/- 13, respectively, with no significant difference between two groups statistically (P = 0.225). HPV-DNA loads for women with CIN I, CIN II and CIN III were 332 +/- 29, 358 +/- 35, and 370 +/- 31, respectively, all significantly higher than that of women with cervicitis (P = 0.000), but there were no significant differences among three groups (P > 0.05). HPV-DNA loads of women with cervical squamous cell carcinoma was 593 +/- 86, much higher than those of women with varied grades of cervical intraepithelial neoplasia and cervicitis (P < 0.05 and P < 0.01). CONCLUSIONS: The new technology using HC-II is an effective method to detect HPV infection in cervix. Viral loads of HPV-DNA increase with severity of cervical neoplasia. So it could be used for screening primary cervical carcinoma.