p16和CDH1基因异常甲基化在宫颈组织中的表达及其意义

目的:分析宫颈癌和宫颈上皮内瘤样病变(cervical intraepithelial neoplasia, CIN)组织中p16和CDH1基因异常甲基化的变化,评价该指标在宫颈癌中的意义。方法:用甲基化特异性聚合酶链反应法(methylation-specific PCR,MSP)检测CINⅠ40例、CINⅡ～Ⅲ40例、宫颈癌40例组织中p16和CDH1基因的异常甲基化。取正常宫颈组织20例作为对照。结果:(1)p16和CDH1甲基化在正常组未见表达;(2)p16、CDH1甲基化阳性率:CINⅡ、Ⅲ组明显高于CINⅠ组,差异有统计学意义(22．4%vs 2．5%,P＜0．05; 35．0%vs 5．0%,P＜0．05),宫颈癌组高于CINⅡ、Ⅲ组,但差异无统计学意义(40．0% vs 22．4%,P＞0．05;57．5% vs 35．0%,P＞0．05);宫颈癌组高于相应CINⅠ组,差异有统计学意义(40．0% vs 2．5%,P＜0．05;57．5% vs 5．0%,P＜0．05);(3)p16和CDH1甲基化总阳性率(任何一个基因出现甲基化即为阳性):CINⅡ、Ⅲ组明显高于CINⅠ组,差异有统计学意义(40．0% vs 5．0%,P＜0．05),宫颈癌组高于CINⅡ、Ⅲ组,差异有统计学意义(70．0% vs 40．0%,P＜0．05)。结论:p16和CDH1基因启动子区异常甲基化与宫颈癌的生物学行为相关,它可能有助于宫颈癌的早期辅助诊断和治疗。     

宫颈癌中抑癌基因FHIT表达与HPV16基因状态

目的:探讨抑癌基因FHIT表达及人乳头瘤病毒16(HPV16)的基因型整合状态在宫颈癌发生发展中的作用及相关性。方法:选取柳州市人民医院2013年6月至2014年12月收治的42例宫颈癌、55例宫颈上皮内瘤样病变(CIN)和20例宫颈正常组织的患者,免疫组化法检测宫颈组织中FHIT蛋白表达;多重PCR法检测HPV16 E2/E7表达。结果:FHIT蛋白的总阳性表达率为57.26%(67/117),正常宫颈组织、CINⅠ、CINⅡ、CINⅢ和宫颈癌中FHIT蛋白阳性率分别为85.00%、80.00%、75.00%、60.00%和26.19%。随着宫颈病变加重,FHIT蛋白阳性表达率下降,组间差异有统计学意义(χ~2=7.335;P=0.003)。117例单纯HPV16阳性标本HPV16总整合率为81.20%,正常宫颈组织、CINⅠ、CINⅡ、CINⅢ和宫颈癌中整合率分别为60.00%、66.67%、75.00%、95.00%和92.86%;随病变加重,整合率增强,组间差异有统计学意义(χ~2=5.713,P=0.003);FHIT蛋白阳性表达在不同HPV16整合时不同,差异有统计学意义(χ~2=11.989,P=0.000)。结论:HPV16基因整合可能通过诱导FHIT基因低表达从而促使宫颈癌发生发展。     

宫颈上皮内瘤变和宫颈癌中端粒酶表达与HPV16、18感染的关系

目的探讨宫颈上皮内瘤变(CIN)和宫颈癌中端粒酶的活化与HPV16、18感染的关系.方法采用免疫组化SP法检测52例CIN和69例宫颈癌中端粒酶催化亚单位(hTERT)的表达,以原位杂交法检测HPV16、18的表达,并以18例正常宫颈组织为对照.结果正常宫颈组织中hTERT无表达,HPV16、18阳性率5.6%(1/18);CIN中hTERT阳性率50%(26/52),HPV16、18阳性率51.9%(27/52),CIN组与对照组比,两者差异均有非常显著性(P＜0.01);宫颈癌组hTERT阳性率87.0%(60/69),HPV阳性率84.1%(58/69),宫颈癌组与CIN和对照组比,两者差异均有非常显著性(P＜0.01).hTERT与宫颈癌分期、组织来源、细胞分化及有无淋巴转移等均无关.无论是CIN还是宫颈癌,hTERT阳性者HPV16、18感染率均明显高于hTERT阴性者,相比差异均有非常显著性(P＜0.01).结论端粒酶的活化与宫颈癌的发生有关,不论是CIN还是宫颈癌阶段端粒酶表达率的高低均与HPV感染率高低呈正相关关系,HPV16、18可能是端粒酶活化的始动因素.     

分析人雄激素受体基因判断子宫颈癌及子宫颈上皮内瘤变组织的克隆状态

目的　通过分析人雄激素受体 (humanandrogenreceptor,HUMARA)基因 ,检测宫颈癌及宫颈上皮内瘤变 (CIN)组织的X染色体失活方式 ,从而判断其克隆状态。方法　对 2 6例宫颈浸润性癌 (宫颈癌组 )、31例CIN(CIN组 )及 33例正常宫颈 (正常宫颈组 )组织标本 ,提取其DNA ,经甲基化敏感性限制性核酸内切酶HhaⅠ消化后 ,对HUMARA基因片段行PCR扩增并电泳 ,通过观察电泳条带判断其克隆状态。结果　HUMARA基因的杂合率为 89%。宫颈癌组、CIN组及正常宫颈组组织的单克隆率分别为 92 %、38%和 10 % ,宫颈癌组分别与CIN组及正常宫颈组比较 ,差异均有极显著性 (P <0 0 0 1) ,CIN组与正常宫颈组比较 ,差异有显著性 (P =0 0 12 )。宫颈癌组中 ,临床分期Ⅰ、Ⅱ、Ⅲ期组织的单克隆率分别为 6 / 7、90 % (9/ 10 )及 7/ 7,两两比较 ,差异均无显著性 (P >0 0 5 )。CIN组中 ,CINⅠ、Ⅱ、Ⅲ组织的单克隆率分别为 2 0 % (2 / 10 )、38% (3/ 8)及 6 3% (5 / 8) ,呈逐级增高趋势 ,但各级CIN间比较 ,差异均无显著性 (P >0 0 5 )。结论　宫颈癌是癌细胞克隆性增殖的结果。对单克隆状态的CIN应给予积极干预或严密随访。HUMARA基因分析可能成为研究宫颈癌发生机制的一种分子生物学检测手段。     

TSLC1基因异常甲基化及与HPV的关系在宫颈癌发生发展中的意义

目的:探讨TSLC1基因启动子甲基化状态以及与HPV感染的关系在子宫颈癌发生发展中的意义。方法:用甲基化特异性聚合酶链反应(MSP)法检测68例原发性宫颈癌,67例CIN及29例慢性宫颈炎症石蜡包埋组织中TSLC1基因甲基化状态。用聚合酶链反应(PCR)法检测人乳头瘤病毒(HPV)DNA的感染状况。结果:宫颈癌组织中45例异常甲基化(66.2%),其中鳞癌67.8%(40/59),腺癌55.5%(5/9);67例宫颈上皮内瘤变组织中29例可见异常甲基化(43.3%);29例慢性炎症组织中2例甲基化(6.9%);将鳞癌、腺癌、CIN与慢性炎症比较,鳞癌与CIN比较,CINⅡ～Ⅲ与CINⅠ比较均显示差异有统计学意义(P<0.05),腺癌与CIN比较,鳞癌分化程度之间的差异无统计学意义(P>0.05)。HPV感染率宫颈癌组51.5%(35/68),CINⅠ23.1%(6/26),CINⅡ～Ⅲ41.5%(17/41),慢性炎症组17.2%(5/29);TSLC1甲基化与HPV感染相关性比较,CIN组之间差异有统计学意义(P<0.05),宫颈癌组之间的差异则无统计学意义(P>0.05)。结论:TSLE1基因启动子区CPG岛的高甲基化是导致TSLC1基因失活的重要机制,可能参与宫颈癌的发生;它与HPV之间的关系提示TSLC1基因可能是宫颈细胞癌变过程中的早期事件。     

HPV16 E6基因和蛋白水平与维汉宫颈病变进展的关系研究

目的:评价HPV16 DNA E6载量和蛋白表达与宫颈病变病情进展的关系,并比较维、汉之间的差异性。方法:通过收集妇科门诊就诊的HPV16感染的维吾尔族和汉族各个级别宫颈病变妇女的宫颈组织和脱离细胞。采用实时荧光定量PCR测定HPV16 DNA E6载量,免疫组化法检测HPV16 E6蛋白表达。结果:汉族和维吾尔族中,炎症组、CIN1、CIN2~3、鳞癌组4组的HPV16 E6 DNA载量比较,差异均有统计学意义(H=30.33,P=0.001;H=37.37,P=0.001)。CIN2~3组中,维吾尔族的HPV16 E6 DNA载量高于汉族,差异有统计学意义(Z=-2.266,P=0.023)。汉族和维吾尔族中,炎症组、CIN1、CIN2~3、鳞癌组4组的HPV16 E6蛋白表达比较,差异有统计学意义(χ~2=38.85,P=0.001;χ~2=44.71,P=0.001);HPV16 E6蛋白表达随着病变程度的增加呈上升趋势。炎症、CIN1、CIN2~3中,HPV16 E6 DNA载量和蛋白表达具有明显的正相关性(P0.05);宫颈癌中HPV16 E6 DNA载量和蛋白表达无相关性(P0.05)。结论:维吾尔族CIN2~3患者的HPV16 E6 DNA载量高于汉族CIN2~3患者,E6基因在维吾尔族宫颈癌发生可能有更重要作用,HPV16 E6 DNA载量可成为预测和诊断宫颈癌前病变和宫颈癌的标志物。     

宫颈上皮内瘤变与人类白细胞抗原及人乳头瘤病毒感染相关性的研究

目的:探讨宫颈上皮内瘤变(CIN)与人乳头瘤病毒(HPV)感染及人类白细胞抗原(HLA)的相关性。方法:选取宫颈活检组织病理学诊断为CINⅠ42例、CINⅡ40例、CINⅢ29例、宫颈湿疣40例、慢性宫颈炎90例,从液基薄片检测剩余的保存液中提取宫颈脱落细胞学的基因组DNA,采用PCR方法及HLA试剂盒进行HPV16/18及HLA分型检测。结果:HPV16/18检出率CINⅠ组为21.4%,CINⅡ组为47.5%,CINⅢ组为55.2%,湿疣组为32.5%,宫颈炎组为1.1%。HLA分型表明,DR15(2)、DQ6(1)、DQ4在CIN组中阳性率分别为37.0%、44.0%、12.0%,明显高于宫颈炎组的17.5%、18.8%、3.8%(P<0.05),并且DR4阳性率随着CIN级别增高而增高(CINⅠ5.6%,CINⅡ13.9%、CINⅢ28.6%)。结论:HPV16/18感染和HLA分型与CIN及其分级密切相关,提示HLA在宫颈癌的发生、发展中可能起一定的作用。     

Survivin、Bcl-2、HPV 16/18在宫颈上皮内瘤变及宫颈癌中的表达及临床意义

目的:研究Survivin、Bcl-2、HPV 16/18在宫颈上皮内瘤变(CIN)及宫颈癌中的表达,探讨三者与宫颈癌的相关性.方法:采用原位杂交法检测正常宫颈组织(对照组)、CIN(CIN组)和宫颈癌(宫颈癌组)中Survivin mRNA及HPV 16/18 DNA的表达.采用免疫组织化学法检测Bcl-2蛋白在各组中的表达.结果:①Bcl-2蛋白、HPV16/18DNA、Survivin mRNA的阳性率在对照组、CIN组、宫颈癌组中逐渐升高,差异有高度统计学意义(P=0.000).②Bcl-2蛋白和Survivin mRNA在宫颈癌的组织分化程度中,低分化组的表达高于高、中分化组(P<0.01),ⅡB～Ⅲ期显著高于I～ⅡA期(P<0.05);Survivin mRNA在淋巴结转移组中高于无淋巴结转移组(P<0.01);Survivin mRNA及Bcl-2与组织类型及肿块类型无关(P>0.05);HPV 16/18感染与宫颈癌组织类型、组织分化程度、临床分期、肿块类型均无关(P>0.05).(③Survivin与Bcl-2及HPV 16/18在宫颈癌中的表达均呈正相关.结论:Survivin、Bcl-2及HPV 16/18在宫颈癌中有异常表达.三者可能与宫颈癌的发生发展有密切关系.     

子宫颈癌组织中抑癌基因DNA甲基化的检测

目的 通过分析宫颈上皮内瘤变（CIN）和宫颈癌组织中p16、CDH1、RASSF1A和TIMP3基因DNA甲基化的变化情况,探讨其在宫颈癌发生中的意义。方法 用甲基化特异性聚合酶链反应技术（MSP）对CINI组（40份）、CINⅡ～Ⅲ（40份）、宫颈癌组（40份）病变组织中p16、CDH1、RASSF1A和TIMP3基因DNA甲基化程度进行检测。另取正常宫颈组织20份作为对照组。结果（1）对照组中p16、CDH1、RASSF1A和TIMP3基因的DNA甲基化阳性率均为0。（2）p16和CDH1基因的DNA甲基化阳性率,CIN11～m组（分别为22％、35％）明显高于CINI组（分别为2％、5％,P〈0．05）;RASSF1A和TIMP3基因的DNA甲基化阳性率,CINⅡ～Ⅲ组（分别为12％、15％）虽高于CINI组（均为2％）,但差异无统计学意义（P〉0．05）。（3）宫颈癌组p16（40％）、CDH1（58％）、RASSF1A（20％）和TIMP3（35％）基因的DNA甲基化阳性率虽均高于CINⅡ-Ⅲ组,但差异无统计学意义（P〉0．05）。（4）宫颈癌组p16、CDH1、RASSF1A和TIMP3基因的DNA甲基化阳性率均高于CINI组,差异有统计学意义（P〈0．05）。（5）上述基因的DNA甲基化的总阳性率（即任何一个基因出现甲基化即为阳性）,宫颈癌组（90％）明显高于CINⅡ～Ⅲ组（55％,P〈0．05）,且此两组均明显高于CINI组（8％,P〈0．05）。结论 随着从宫颈不典型增生向浸润癌的进展,p16、CDH1、RASSF1 A和,TIMP3基因的DNA甲基化阳性率明显升高,提示抑癌基因的DNA甲基化在宫颈癌发生、发展中起着一定作用,可能成为判断宫颈癌发生、发展的重要指标。     

应用实时荧光定量聚合酶链反应技术检测子宫颈人乳头状瘤病毒16、18型

人乳头状瘤病毒 (HPV)感染与宫颈上皮内瘤变 (CIN)和宫颈癌的发生有密切关系。与生殖道病变有关的HPV的亚型有近 30种 ,可分为低危型和高危型 ,高危型HPV主要为HPV 16、18型。我们应用实时荧光定量聚合酶链反应(FQ PCR)技术[1,2 ] ,检测不同宫颈病变组织HPV 16、18型DNA拷贝数量 ,以建立快速、准确地检测HPV16、18型DNA的方法。一、材料和方法1 标本来源 :收集 2 0 0 2年 8月～ 2 0 0 2年 11月我院妇产科送病理检查的宫颈病变活组织标本 (活检标本 ) 2 86份。另随机抽取 1991年～ 2 0 0 2年各种宫颈病变石蜡标本 35 1例 ,其中…     

Detection and quantitation of human papillomavirus type 16, 18 and 52 DNA in the peripheral blood of cervical cancer patients

OBJECTIVE: To prospectively evaluate the feasibility of detecting human papillomavirus (HPV) type 16, 18 and 52 DNA in the peripheral blood of patients with cervical cancer using real-time polymerase chain reaction (PCR) and to determine its prognostic importance. METHODS: Blood and cervical swab specimens from 135 consecutive patients with 60 invasive cervical cancers, 10 microinvasions, 20 cervical intraepithelial neoplasias (CIN) III, 10 CIN II, 10 CIN I and 25 controls were collected and examined for HPV type 16, 18 and 52 DNA using real-time PCR to investigate the prevalence and viral load of HPV DNA at the time of diagnosis and during follow-up in patients with positive blood samples. RESULTS: Of the 60 patients with invasive cervical cancer, 27% had positive test results for HPV DNA in blood samples in contrast to 0% of patients with microinvasions, CIN III, CIN II, CIN I and normal controls. The DNA detection rates of viral subtypes in blood samples of cervical cancer patients were 5% for HPV-16, 16.7% for HPV-18, 8.3% for HPV-52, 1.7% for both HPV-16 and HPV-18 and 1.7% for both HPV-18 and HPV-52, while the detection rates in cervical swab specimens were 36.2% for HPV-16, 15.5% for HPV-18 and 17.2% for HPV-52. During follow-up, 8 of 10 cervical cancer patients with viral DNA detected in blood within 3 months after treatment had recurrence, and a high percentage (87.5%, 7/8) of this recurrence involved distant metastases. CONCLUSIONS: In this study, real-time PCR detected HPV-16, -18 or -52 DNA in the peripheral blood of more than one-fourth of invasive cervical cancer patients. The association between risk of cancer recurrence and the amount of viral DNA detected in blood among cervical cancer patients after treatment is intriguing and deserves further investigation.     

肿瘤干细胞相关基因ABCB1、ABCG2表达与宫颈上皮恶变及发展关系的研究

目的:探讨肿瘤干细胞相关基因ABCB1、ABCG2表达与宫颈癌形成及临床病理参数之间的关系。方法:应用组织芯片技术和免疫组织化学检测宫颈浸润癌34例、微小浸润癌30例、CINⅢ30例、宫颈慢性炎症30例患者ABCB1、ABCG2的表达,并与临床病理资料进行相关性分析。结果:ABCB1在浸润癌、微小浸润癌、CINⅢ、宫颈慢性炎症中的阳性表达率分别是为76%(26/34)、60%(18/30)、40%(12/30)、20%(6/30),其阳性表达率随病变级别升高而明显增加;ABCB1在浸润癌中表达水平与肿瘤分化程度、TNM分期、淋巴结转移密切相关(P<0.05),与肿瘤体积无关(P>0.05);ABCG2在浸润癌、微小浸润癌、CINⅢ、宫颈慢性炎症中的阳性表达率分别为80%(27/34)、70%(21/30)、40%(12/30)、30%(9/30),其阳性表达率随病变级别增加而上升;ABCG2表达水平与肿瘤体积、TNM分期密切相关(P<0.05),与淋巴结转移、肿瘤分化程度无关(P>0.05)。结论:ABCB1、ABCG2在促进宫颈癌变过程中发挥主要作用,并且ABCB1的阳性表达是提示宫颈癌预后不良的客观指标。     

hTERC基因和P16蛋白在子宫颈组织的表达及其意义

目的探讨人类染色体末端酶RNA（hTERC）基因的扩增及P16蛋白的表达在宫颈癌发生发展中的作用及相互关系。方法应用荧光原位杂交（FISH）和免疫组织化学法分别检测12例宫颈癌,66例CIN,34例慢性宫颈炎患者宫颈组织中hTERC基因异常扩增及P16蛋白的表达情况。结果 hTERC基因在慢性宫颈炎、CIN1、CIN2、CIN3和宫颈癌中的扩增率分别为2.94%、16.67%、41.18%、78.38%和83.33%,各组比较,差异有统计学意义（P〈0.01）;P16蛋白在慢性宫颈炎、CIN1、CIN2、CIN3和宫颈癌中的表达率分别为8.82%、16.67%、41.18%、86.49%和91.67%,各组比较,差异有统计学意义（P〈0.01）。宫颈病变组织中hTERC基因和P16蛋白的表达呈正相关（r=0.637,P〈0.01）。结论 hTERC基因和P16蛋白与宫颈癌的发生发展有关,两者间有正相关性。     

CD1a和E-cadherin在宫颈上皮内瘤变中的表达

目的:探讨CD1a和E-cadherin与宫颈癌发生发展的关系及作为早期癌变生物学指标的可能性。方法:采用免疫组化SP法检测CD1a和E-cadherin在同期56例宫颈上皮内瘤变、56例宫颈鳞癌和15例正常宫颈组织中的分布及表达。结果:(1)CD1a+朗格汉斯细胞在正常宫颈、CIN和宫颈癌各组中数量逐渐减少,两两比较有显著差异(P0.01);CIN中该细胞数量随病变严重程度减少,CINⅠ和CINⅡ、CINⅠ和CINⅢ组之间两两比较有显著差异(P0.05),而CINⅡ与CINⅢ组间无显著差异(P0.05);(2)E-cadher-in在正常宫颈、CIN和宫颈癌各组中的阳性表达率及强度逐渐下降,两两比较有显著差异(P0.05);在CIN中阳性表达率及表达强度随病变严重程度呈下降趋势,CINⅠ和CINⅡ、CINⅠ和CINⅢ之间两两比较有显著差异(P0.05),而CINⅡ和CINⅢ之间无显著差异(P0.05);(3)宫颈组织中CD1a+朗格汉斯细胞的细胞数与E-cadherin的阳性表达率及强度呈正相关(r=0.912,P0.05)。结论:CD1a+朗格汉斯细胞与E-cadherin可能在宫颈癌的发生、发展过程中起重要作用。     

P16，P53及Ki67在子宫颈鳞状细胞癌（SCC），宫颈上皮内瘤变（CIN）及慢性炎症中表达水平及临床意义

Objective?To study the expression of P16, P53 and Ki67 in cervical squamous cell carcinoma (SCC), cervical intraepithelial neoplasia (CIN) and chronic cervicitis, and explore their correlation with clinical changes. Methods?People who received cervical cancer screening in the hospital from October 2019 to September 2021 were selected. According to the inclusion and exclusion criteria, 193 patients were finally enrolled, including 5 patients with cervical SCC, 92 patients with CIN (78 CIN1, 9 CIN2, 5 CIN3), 96 patients with chronic cervicitis. Cervical tissues were collected from different groups to detect the expression of P16, P53 and Ki67, and their correlation with cervical pathological changes was analyzed. Results?P16 positive rates in chronic cervicitis, CIN1~CIN3, and cervical SCC were 4.17%, 30.77%, 55.56%, 60.00%, and 80.00% respectively. P53 positive rates were 7.29%, 20.51%, 44.44%, 60.00%, and 60.00% respectively. Ki67 positive rates were 4.17%, 30.77%, 55.56%, 60.00%, and 80.00% respectively. P16 positive rates, P53 positive rates and Ki67 positive rates all showed an upward trend (P<0.05). The expression of P16 (r=0.462, P<0.05), P53 (r=0.353, P<0.05) and Ki67 (r=0.502, P<0.05) were positively correlated with cervical pathological changes. Conclusions?The expression levels of P16, P53 and Ki67 increase with the aggravation of cervical lesions. Therefore, detection of related indicators can help assess the condition of cervical lesions, which is beneficial to clinical prevention and treatment of cervical cancer.     

Integrated human papillomavirus types 52 and 58 are infrequently found in cervical cancer, and high viral loads predict risk of cervical cancer

OBJECTIVE: The aim of this prospective study was to analyze whether integration or high viral loads of human papillomavirus (HPV) is essential for malignant transformation of HPV types 52 and 58 as well as types 16 and 18. METHODS: Cervical swabs from 178 consecutive patients, including 81 with invasive cervical cancers and 97 with cervical intraepithelial neoplasias (CIN) II-III, were collected and examined to determine the physical status and viral load of HPV types 16, 18, 52 and 58 DNA using genechip and real-time PCR (polymerase chain reaction) analysis. RESULTS: In cervical cancer patients, the integrated form of HPV 52 and 58 DNA was found in 25.0% and 12.5% of swabs, respectively; while HPV16 and 18 DNA was found in 82.6% and 100% of swabs, respectively (P < 0.01, for pair-wise comparison of types 16, 18 versus types 52, 58).The viral loads reflected by the amount of E6 for HPV 16, 18, or 52 were significantly increased in invasive cervical cancer compared to CINII-III (P = 0.022 for type 16, P = 0.003 for type18, and P = 0.001 for type 52, respectively). Area under the receiver operating characteristic (ROC) curve for cervical cancer versus CIN II-III was 73.8%, 92.9%, and 88.5% for HPV 16, 18, and 52, respectively, indicating that real-time PCR had good diagnostic value in differentiating cervical cancer from CIN II-III. CONCLUSIONS: Infrequent integration of HPV 52 and 58 DNA in cervical cancer suggests that it is not prerequisite for progression to cervical cancer. High viral loads (E6) of HPV 16, 18, and 52 DNA may be predictive of the transition of CIN II-III to cervical cancer. Our results indicate that both viral DNA physical status and viral loads of HPV are important factors in the carcinogenesis of different HPV types.     

黑龙江省铁力市育龄妇女宫颈癌前病变筛查的研究

目的:检测目标人群中宫颈病变的现状及人乳头瘤病毒(human papillomavirus,HPV)流行病学特征。方法:(1)应用醋酸白试验(VIA)、碘不着色试验(VILI)对4007例妇女宫颈行肉眼观察,疑似异常病例行阴道镜检查,异常病例组织活检确诊;(2)采用导流杂交基因分型技术(HybriMax),对宫颈癌及CIN(cervical intraepithelial neopla-sia)患者进行21种HPV基因型的分型检测,分析HPV感染率以及宫颈疾病发病状况。结果:(1)两年诊断出宫颈病变发病率为5.01%,其中CINⅠ3.74%,CINⅡ0.87%,CINⅢ/原位癌0.32%,浸润癌0.07%;(2)病变宫颈HPV-DNA基因分型检测到HPV-DNA阳性127例,阳性率63.18%,其中CINⅠ53.33%,CINⅡ91.43%,CINⅢ92.30%,宫颈浸润癌100%;高危型HPV感染136例次,占77.27%,低危型40例次,占22.73%;单一亚型感染89例,占70.08%,多重HPV基因型混合感染38例,占29.92%。感染最多的基因型是HPV16,共45例次,占25.57%,其次是HPV58,占10.23%,随后基因型由高到低依次为:HPV52,占10.23%;HPV33,占7.95%;HPV6,占6.82%,不同级别CIN及浸润癌HPV感染率差异有统计学意义(P0.05)。结论:(1)肉眼观察筛查宫颈病变虽有一定的漏诊率,但由于检查成本低廉,在经济欠发达地区,仍可作为防癌普查的基本方法;(2)HPV16型是本地区宫颈病变HPV感染的主要型别,位居第二为HPV58,HPV52、HPV33、HPV6分别位居第三、四、五位。加大对高危人群的普查力度势在必行。     

Infection by human papillomavirus types 6, 11, 16, 18, 31, 33 and 35 of the cervix in Japanese women

Exfoliated cervical cells from 321 Japanese women were examined for human papillomavirus (HPV) DNA types 6, 11, 16, 18, 31, 33 and 35 using polymerase chain reaction (PCR) and dot-blot hybridization methods. HPV DNA was present in 9.3% of patients with normal cervixes, 72.7% of patients with cervical intraepithelial neoplasia (CIN) and 77.8% of patients with invasive carcinoma. Younger patients (29 years) with normal cervixes had a 18.5% incidence of HPV DNA, whilst similar older patients (50 years) had a 1.9% incidence, a significant difference (χ²= 6.478, P < 0.01). In the CIN I and II groups, an incidence of 11.1% of types 16 and 18 was found, while in the CIN III or invasive carcinoma group the incidence was 58.1%, again a significant difference (χ² = 12.075, P < 0.01). Furthermore, persistence or progression of CIN showed a significant correlation with infections by types 16 and 33 (χ²= 4.904, P < 0.01). However, no significantly different incidence of HPV infection was found between the CIN and the invasive carcinoma groups. It is suggested that (a) younger patients with normal cervixes have a higher incidence of HPV infection than do older patients; (b) HPV types 16, 18 and 33 are important etiologic agents of CIN III and invasive carcinoma, as well as in the persistence and progression of CIN; (c) progression of CIN to invasive carcinoma may depend on factors other than HPV infection in the cervix.     

半乳糖凝集素-1蛋白在宫颈病变组织中的表达及其与高危型人乳头瘤病毒的关系

目的:探讨半乳糖凝集素-1(Galectin-1)蛋白在宫颈上皮内瘤变(CIN)及宫颈癌中的表达及其与高危型人乳头瘤病毒(HR-HPV)的关系。方法:用免疫组织化学法检测宫颈癌(54例)、CINⅠ(10例)、CINⅡ(20例)、CINⅢ(25例)和正常宫颈组织(20例)中Galectin-1蛋白的表达,用第二代杂交捕获法(HC-Ⅱ)检测HR-HPV感染情况,分析Galectin-1与CIN及HR-HPV的关系。结果:Galectin-1蛋白在正常宫颈、CINⅠ、CINⅡ、CINⅢ和宫颈癌组织中的阳性表达率分别为5.0%、20.0%、40.0%、56.0%、48.1%,随着CIN病变程度的加重,Galectin-1蛋白阳性表达逐渐增强;宫颈癌和CINⅡ、CINⅢ的Galectin-1蛋白阳性表达率明显高于正常宫颈组织和CINⅠ(P<0.01),宫颈癌与CINⅡ、CINⅢ间比较、差异无统计学意义(P>0.05)。宫颈癌中Galectin-1蛋白阳性表达在有否淋巴结转移、组织学分级、临床分期和有否HR-HPV的感染中比较,差异有统计学意义(P<0.05,P<0.01),在不同组织学类型中比较,差异无统计学意义(P>0.05)。结论:Galectin-1蛋白表达增强与宫颈病变的进展有一定关系,HR-HPV可能通过诱导宫颈上皮高表达Galectin-1而促使宫颈癌发生、发展。     

子宫颈癌组织中人乳头状瘤病毒16 E6 mRNA表达与survivin蛋白表达的相关性

目的探讨宫颈癌组织中人乳头状瘤病毒(HPV)16E6mRNA表达与survivin蛋白表达的相关性。方法采用半定量PCR技术和免疫组化链霉菌抗生物素蛋白-过氧化物酶连接法,检测慢性宫颈炎、宫颈上皮内瘤变(CIN)及宫颈癌共148例患者宫颈组织中HPV16E6mRNA及survivin蛋白的表达。结果148例患者中,HPV16阳性共37例,其中慢性宫颈炎5例、CINⅠ6例、CINⅡ～Ⅲ11例及宫颈癌15例。慢性宫颈炎、CINⅠ、CINⅡ～Ⅲ及宫颈癌组织中,HPV16E6mRNA的表达水平分别为0.3±0.4、0.6±0.4、1.8±0.6及2.4±0.6;survivin蛋白阳性表达率分别为7%、31%、63%及84%。CINⅡ～Ⅲ及宫颈癌组织中,HPV16E6mRNA的表达水平及survivin蛋白阳性表达率均显著高于慢性宫颈炎及CINⅠ组织,两者比较,差异均有统计学意义(P<0.01)。宫颈癌组织中,HPV16E6mRNA的表达水平与survivin蛋白阳性表达率呈显著正相关关系(γs=0.62,P<0.05)。结论HPV16E6mRNA的表达水平与宫颈病变的进展有关,survivin蛋白阳性表达率升高可能与宫颈癌的发生、发展密切相关。