RCAS1在宫颈癌组织中的表达及其与HPV16感染的关系

背景与目的:表达在SiSo细胞上的受体结合肿瘤抗原(receptor-binding cancer antigen expressed on SiSo cells,RCAS1)在多种肿瘤组织中呈高表达,并与肿瘤逃避免疫监视有关.本研究检测RCAS1蛋白在宫颈癌组织中的表达及其与HPV16感染的相关性,并探讨其临床意义.方法:采用免疫组化SP(streptavidin-peroxidase)法,分别检测71例宫颈癌、76例宫颈上皮内瘤样病变(CIN)及20例正常宫颈上皮组织中RCAS1蛋白与HPV16 E7蛋白的表达,并分析两者的表达与临床病理因素的关系.结果:宫颈癌组织中,RCAS1蛋白主要表达于癌细胞膜和/或细胞浆,HPV16 E7蛋白主要表达于癌细胞核.正常宫颈上皮组织不表达RCAS1蛋白,CIN与宫颈癌组织中RCAS1蛋白的表达率分别为39.47%和77.46%,HPV16 E7蛋白的表达率分别为0.05%、28.94%和61.97%,提示随着宫颈病变恶性程度的进展,RCAS1与HPV16 E7表达均逐渐增强(P＜0.05).低分化宫颈癌组中RCAS1表达显著高于高、中分化宫颈癌组(P=0.002),但与患者年龄、临床分期及组织学分型无关(P＞0.05);HPV16 E7在鳞癌组中的表达显著高于腺癌组(P=0.000),但与患者年龄、临床分期、组织学分级无关(P＞0.05).RCAS1的表达与HPV16感染在宫颈癌中的表达呈正相关(r=0.780,P=0.000).结论:RCAS1基因在宫颈癌组织中表达增强,RCAS1表达强度与宫颈癌恶性程度相关;RCAS1阳性的宫颈癌组织中存在HPV16感染.     

子宫颈上皮内瘤样病变和子宫颈癌组织中Smad2/3和HPV16 E7的表达及意义

背景与目的:Smads蛋白是转化生长因子-β(transforming growth factor-β,TGF-β)超家族信号转导的下游信号蛋白,与多种肿瘤的发生密切相关;人乳头状瘤病毒(human papillomavirus,HPV)感染是宫颈癌的重要致癌因素,但目前对两者在宫颈癌发病过程中相互关系的研究尚不充分.本研究拟检测不同宫颈病变组织中Smad2/3和HPV16 E7蛋白的表达,探讨HPV感染和Smad2/3蛋白变化在宫颈癌形成和演进进程中的相互关系.方法:采用免疫组织化学SP法检测20例宫颈慢性炎症、30例宫颈上皮内瘤样病变(cervical intraepithelial neoplasia,CIN)和30例宫颈癌组织中Smad2/3和HPV16 E7的表达情况,比较其在各种病变中表达水平的差异.结果:Smad2/3蛋白在慢性宫颈炎、CIN和宫颈癌组织中的阳性率分别为50.0%、73.3%和93.3%,宫颈癌组分别与慢性宫颈炎组和CIN组比较,差异有统计学意义(P＜0.05),慢性宫颈炎组与CIN Ⅲ级组相比,差异有统计学意义(P＜0.05).HPV16 E7蛋白阳性率在慢性宫颈炎、CIN和宫颈癌组织中分别为60.0%、66.7%和83.3%,各组间两两比较差异无统计学意义(P＞0.05).Smad2/3阳性率与宫颈癌临床分期、病理类型、组织学分级和淋巴结转移无关(P＞0.05).Smad2/3与HPV16 E7表达呈正相关(r=0.271,P=0.015).结论:Smad2/3蛋白在宫颈癌组织中表达升高,可能在宫颈癌的发生过程中起重要作用;HPV感染与Smad2/3蛋白在宫颈癌组织中表达升高密切相关.     

宫颈癌和宫颈上皮内瘤变中表皮生长因子受体表达与人乳头瘤病毒16和(或)18感染及其相互关系

目的探讨宫颈癌发生发展过程中,表皮生长因子受体(EGFR)与人乳头瘤病毒(HPV)的作用及其相互关系。方法宫颈癌组60例,选自1997年至2001年间中山大学肿瘤防治中心住院初治的宫颈癌病例,临床分期Ⅰa～Ⅱb期;宫颈上皮内瘤变(CIN)组40例;正常上皮对照组30例。以免疫组化S-P法检测宫颈组织EGFR的表达,以PCR检测HPV16和(或)HPV18感染。结果正常上皮组、CIN组和宫颈癌组的EGFR中强表达率呈梯度上升,分别为0、42.5%和76.7%,差异有统计学意义(P<0.05)。正常上皮组、CIN组和宫颈癌组的HPV16和(或)HPV18感染率分别为6.7%、67.5%和58.3%,宫颈癌组和CIN组的感染率均显著高于正常上皮组(P=0.000),但宫颈癌组与CIN组之间,差异无统计学意义(P=0.355)。肿瘤侵袭程度超过宫颈1/2间质者,EGFR中强表达率显著高于未达1/2间质者(89.2%:56.5%,P=0.004)。宫颈管侵袭者HPV16和(或)HPV18感染率显著高于无侵袭者(88.2%:46.5%,P=0.003)。EGFR与HPV之间无显著相关性(P>0.05)。EGFR与HPV均未显示与宫颈癌预后有关。结论EGFR和HPV与宫颈癌的发生发展有关;EGFR、HPV16和(或)HPV18与宫颈癌预后无关,EGFR与HPV16和(或)HPV18无显著相关性。     

High-risk human papillomavirus E7 oncoprotein detection in cervical squamous cell carcinoma.

PURPOSE: Persistent infections by high-risk human papillomavirus (HPV) types are the main etiologic factor for cervical cancer. The objective of this study was to evaluate whether high-risk E7 oncoprotein is adequate as a marker for the detection of cervical cancer. EXPERIMENTAL DESIGN: HPV typing was done in biopsies from 58 cervical carcinoma and 22 normal cervical squamous epithelia. The HPV-16 E7, HPV-18 E7, and HPV-45 E7 oncoprotein levels were monitored by immunohistochemistry and compared with those of p16(INK4a) and Ki67. RESULTS: Fifty-five (94.8%) tumors were high-risk HPV-DNA-positive (46 HPV-16, 2 HPV-16 and HPV-18, 4 HPV-18, 1 HPV-33, and 2 HPV-45). HPV-DNA could not be detected in three tumors (5.2%). High HPV E7 oncoprotein levels were shown in 57 cervical cancers (98.3%), without correlation between expression levels and tumor stages. CONCLUSION: This is the first study which systematically analyzes the levels of the major HPV oncoproteins in cervical carcinomas demonstrating that the high-risk HPV E7 proteins are regularly expressed in these cancers. This suggests that high-risk E7 oncoproteins are necessary for cervical cancers and apparently essential as tumor marker.     

Combination therapy with podophyllin and vidarabine for human papillomavirus positive cervical intraepithelial neoplasia

Our aim was to establish an effective non-surgical treatment for cervical intraepithelial neoplasia (CIN) through inactivation of human papillomavirus (HPV), the major etiological agent for this disease. We show that vidarabine, a DNA polymerase inhibitor, suppressed growth and HPV gene expression in human cervical keratinocytes immortalized by HPV or in cervical cancer cell lines. Expression of HPV-16 E6 and E7 proteins in normal cervical keratinocytes sensitized cells to apoptosis in the presence of podophyllin or vidarabine. We applied vidarabine ointment and/or podophyllin to cervical epithelium in 28 cases of CIN I-II to evaluate the therapeutic effectiveness of these agents. Co-application of vidarabine and podophyllin in six treatments caused regression of lesions cytologically and histologically, and disappearance of HPV-16 or -18 DNA in 17 of 21 (81%) women. Our results suggest that the combination of vidarabine and podophyllin therapy is an effective non-surgical treatment for HPV-positive CIN.     

血管内皮生长因子-C、高危型人乳头瘤病毒在子宫颈上皮内瘤样病变及子宫颈鳞癌中的表达和意义

 目的 探讨人类乳头状瘤病毒（HPV）感染和血管内皮生长因子-C（VEGF-C）在宫颈癌的形成及演进过程中可能的作用机制。方法 采用PCR技术检测16例正常宫颈，65例宫颈上皮内瘤样病变（CIN），其中，20例CINI组、24例CINⅡ组、21例CINⅢ组，26例宫颈浸润性癌（宫颈癌组）组织中HR-HPV的感染情况，同时采用免疫组化SABC法检测VEGF-C的表达水平。结果 VEGF-C在CIN在及宫颈鳞癌组织中均表达，并且随着病变程度的增强VEGF-C的表达呈渐进性增强，而正常的宫颈组织细胞中无表达。HR-HPV同CIN及宫颈癌均显著相关（比值比分别为19.12和20.49；95 %CI分别为2.31 ~ 157.8和3.28 ~ 226.09）。CIN及宫颈癌组织中VEGF-C的表达同HR-HPV的感染显著相关。结论 VEGF-C蛋白的表达同HR-HPV感染显著相关，可能是宫颈癌血管形成的早期预测指标。     

Integration Sites and Genotype Distributions of Human Papillomavirus in Cervical Intraepithelial Neoplasia

Objectives: To analyse HPV integration prevalence and genotype distributions in cervical intraepithelialneoplasia (CIN) in east part of China, furthermore to assess preferential sites for common HPV integrations andprovide baseline information for cervical abnormality screening and prevention. Methods: Integration of HPV in113 paraffin-embedded cervical intraepithelial neoplasia samples was assessed using Gencap technology in KeyLaboratory of Biotechnologies in BGI-Shenzhen. Results: 64 samples were HPV-integrated and as the cervicallesions increased, the integration rate became higher significantly (P=0.002). Fifteen different HPV genotypeswere detected, 14 high-risk (16, 18, 31, 33, 51, 52, 56, 58, 66, 68) and 1 low-risk (11). The most common genotypeswere HPV-16, 58, 33, 52, 66, and 56. Thirteen patients had co-integration involving mainly HPV-16 and 58. Thefrequency of HPV gene disruption was higher in L1 and E1 genes than in other regions of the viral genomes.Conclusion: Some 56.6% of CIN lesions in Qingdao had HPV integrations, and 67.2% of HPV-integrated patientswere HPV-16 and 58, more prone to be integrated in younger patients below 45 years old. There exist preferentialsites for HPV-16 and HPV-58 integration, and they are more likely to be disrupted in the L1 and E1 loci.     

新疆地区宫颈癌和CIN患者HPV-16感染和血清中HPV-16 L1抗体的检测及其临床意义

目的 探讨宫颈癌和宫颈上皮内瘤变（CIN）患者血清中HPV 16 L1抗体水平及其与HPV-16感染的关系。方法 收集宫颈癌患者51例和CIN（包括CINⅠ、CINⅡ、CINⅢ）患者44例。取患者宫颈病变组织并提取组织DNA,PCR检测HPV-16 DNA。同时取患者血样,酶联免疫吸附试验（ELISA）检测血清样品中HPV-16 L1抗体。结果 宫颈癌组中HPV-16 DNA的阳性率为82.4％,CIN组为52.3％。宫颈癌组血清HPV-16 L1抗体阳性率为70.6％,CIN组为79.5％。宫颈癌组中HPV-16 DNA阳性而HPV-16 L1抗体阴性的比例为27.5％,显著高于CIN组的9.1％（P＜0.05）;宫颈癌组HPV-16 DNA阴性而HPV-16L1抗体阳性的比例为15.7％,显著低于CIN组的36.4％（P＜0.05）。宫颈癌组HPV-16 DNA和患者HPV-16 L1抗体均阳性的重合率为54.9％,CIN组为43.2％。结论 CIN和宫颈癌患者HPV-16 L1抗体的产生与HPV-16 DNA的检出率相关,血清中HPV-16 L1抗体可作为宫颈癌和CIN病程的辅助诊断指标。     

人类子宫颈癌基因、p16及人乳头瘤病毒16／18在子宫颈癌中表达的意义

 目的　研究人类子宫颈癌基因（HCCR）、p16在子宫颈上皮内瘤变（CIN）及子宫颈癌中的表达, 探讨其与人乳头瘤病毒（HPV）16／18感染的相关性及其临床意义。方法　采用免疫组织化学SP法检测28例慢性子宫颈炎,62例CINⅠ~Ⅱ级、49例CINⅢ级及52例子宫颈癌组织中p16、HCCR蛋白的表达,并采用原位杂交法检测其HPV16／18的表达。结果　HCCR在慢性子宫颈炎、CINⅠ~Ⅱ级、CINⅢ级和子宫颈癌组的阳性表达率分别为3.57 %（1／28）、35.48 %（22／62）、61.22 %（30／49）和88.46 %（46／52）,各组间两两比较,差异有统计学意义（P＜0.05）。p16蛋白的阳性表达率从慢性子宫颈炎、CINⅠ~Ⅱ级、CIN Ⅲ级到子宫颈癌组逐渐增加,分别为7.14 %（2／28）、33.87 %（21／62）、65.30 %（32／49）和92.31 %（48／52）,各组间两两比较差异均有统计学意义（P＜0.05）;HPV16／18在慢性子宫颈炎、CINⅠ~Ⅱ级、CINⅢ级和子宫颈癌组的阳性率分别为10.71 %（3／28）、40.32 %（25／62）、69.39 %（34／49）和84.62 %（44／52）,除子宫颈癌与CINⅢ级比较差异无统计学意义外（P＝0.115）,其余组间两两比较,差异有统计学意义（P＜0.01）。p16、HCCR的表达与HPV16／18感染呈正相关（P＜0.01）。结论　HPV感染可能通过影响p16及HCCR蛋白的过表达与子宫颈癌及其癌前病变的发生、发展密切相关,三者联合检测对子宫颈癌及癌前病变的筛查和预防具有重要意义。     

HPV-16 E6 siRNA与hIL-24基因联合诱导人宫颈癌Ca Ski细胞的凋亡

目的：观察HPV-16 E6 siRNA与hIL-24基因体外共转染，联合诱导人宫颈癌CaSki细胞凋亡的效应。方法：HPV-16 E6 siRNA与hIL-24基因的质粒载体分别以单独或联合的方式转染入宫颈癌CaSki细胞，随后利用RT—PCR技术检测细胞中HPV-16E6癌基因的mRNA水平变化；Western blot分析细胞中抑癌蛋白p53水平的变化；流式细胞技术分析细胞凋亡情况。结果：经HPV-16 E6 siRNA和hIL-24转染后细胞后HPVE6癌基因的mRNA水平均下降，其中联合转染组显著下降（P〈0，05）；抑癌蛋白p53水平均增高，其中联合转染组显著增高，细胞凋亡率均升高，其中联合转染组显著升高（P〈0．05）。结论：HPV-16 E6siRNA与hIL-24基因分别转染宫颈癌CaSki细胞后，均能抑制CaSki细胞中HPV-16E6癌基因的表达，使抑癌蛋白p53恢复活性，诱导宫颈癌CaSki细胞凋亡；两者联合别具有协同效应，能显著提高肿瘤细胞凋亡率。     

Increased vascular endothelial growth factor expression,CD3‐positive cell infiltration,and oxidative stress in premalignant lesions of the cervix

BACKGROUND:

Vascular endothelial growth factor (VEGF) plays an important role in cervical intraepithelial neoplasia (CIN) progression. The occurrence of leukocytes has been documented in CIN; however, their role in VEGF production remains unknown. Oxidative stress has been involved in the progression of malignant neoplasias, but to the authors' knowledge tissue oxidative stress in CIN has not been documented. The objective of the current study was to investigate the expression of VEGF, leukocyte infiltration, leukocyte VEGF expression, and nitrogen/oxygen metabolism in cervical tissues from patients with CIN.

METHODS:

Indirect immunofluorescence was used to study the expression of VEGF and leukocyte infiltration in cervical samples from 55 patients with CIN and 7 normal controls. Superoxide anion (O₂^?) expression was determined by a cytochemical method, and tissue and serum nitric oxide by the Griess reaction. Human papillomavirus (HPV) DNA and HPV types were identified by the hybrid capture 2 HPV DNA test.

RESULTS:

Increased expression of VEGF was observed related to the progression of CIN. A significant increment of CD3 lymphocytes was found in CIN type 3 (CIN 3) and coexpression of CD3/VEGF and monocyte‐macrophage/VEGF in CIN 2 and 3. Increased O₂^?‐positive cells were found in CIN 2 and 3; however, tissue nitrate‐nitrite content remained similar to controls. The incidence of HPV infection was 16% in patients with CIN. No significant differences were observed in the values of HPV‐positive or HPV‐negative patients.

CONCLUSIONS:

Different factors leading to cervical neoplasia progression may be involved in the evolution of CIN, and the presence of these factors is most likely not related to the HPV infection status. Cancer 2009. © 2009 American Cancer Society.     

KAI1蛋白与人乳头状瘤病毒E6、E7蛋白在子宫颈癌组织中的表达及其意义

目的 探讨高危型人乳头状瘤病毒（HPV）感染和肿瘤转移抑制蛋白KAIl在子宫颈癌形成及进展中的意义.方法 对117例石蜡包埋子宫颈组织[正常对照20例、子宫颈上皮内瘤样病变（CIN）58例、子宫颈癌39例]采用免疫组织化学SP法检测KAI1蛋白、HPV16/18E6、HPV16E7蛋白的表达情况.结果 在正常子宫颈组织、CIN和子宫颈癌组织中,KAII阳性表达率分别为90.0％（18/20）、72.4％（42/58）、25.6％（10/39）,呈下降趋势,差异有统计学意义（P＜0.01）. HPVI6/18E6阳性表达率分别为0（0/20）、31.0％（18/58）、41.0％（16/39）,差异有统计学意义（P＜ 0.01）;HPV16E7阳性表达率分别为0（0/20）、34.5％（20/58）、64.1％（25/39）,差异有统计学意义（P＜0.01）.但KAI1与HPV16/18E6、HPV16E7阳性表达间无相关性（P=0.429）.KAI1蛋白在子宫颈癌中的阳性表达率与细胞分化程度、临床分期、淋巴结转移有关（均P＜ 0.05）,与发病年龄无关（P＞0.05）;HPV感染与子宫颈癌发病年龄、临床分期、细胞分化程度、淋巴结转移均无关（均P＞ 0.05）.结论 KAI1蛋白在子宫颈癌中的表达下调,HPV16/18E6、HPV16E7感染与KAI1蛋白表达无关.     

叶酸水平及 HPV16感染对妇女发生宫颈癌变的协同作用研究

目的：探讨叶酸水平、HPV16感染及HPV16 E2和E6 mRNA水平与宫颈癌变的关系,并研究叶酸水平及HPV16感染在宫颈癌变中的协同作用。方法选择新发宫颈炎症（ CI）患者40例、宫颈上皮内瘤样变（ CIN）患者80例（ CINⅠ患者36例,CINⅡ／Ⅲ44例）、宫颈鳞状细胞癌（ SCC）患者48例作为研究对象,采用微生物法测定血清叶酸和红细胞叶酸含量,采用PCR检测宫颈癌组织HPV16的感染情况,采用荧光定量PCR检测宫颈癌组织和叶酸体外干预后Caski宫颈癌细胞中HPV16 E2及E6 mRNA水平,检测不同叶酸浓度对Caski和C33A细胞抑制情况。结果 CINⅠ组、CINⅡ／Ⅲ组和SCC 组HPV16感染率分别与CI 组宫颈组织HPV16感染率比较,差异具有统计学意义（ P＜0．05）。CINⅠ、CINⅡ／Ⅲ、SCC 各组HPV16 E2和E6 mRNA水平与CI组比较差异均具有统计学意义（P＜0．0001）。宫颈癌的严重程度与HPV16 E2和E6 mRNA水平均呈明显正相关性,与血清叶酸和红细胞叶酸含量均呈显著负相关性。叶酸浓度与Caski细胞和C33A细胞的相对抑制率及HPV16 E2和E6 mRNA水平呈明显负相关性。结论叶酸水平低、HPV16感染及HPV16 E2及E6 mRNA低表达均与宫颈癌变有关,补充叶酸明显抑制宫颈癌细胞的增殖,逆转HPV16 E2及E6高表达,提示叶酸水平及HPV16感染在宫颈癌变的过程中具有协同作用。     

早期宫颈癌组织中ATG-12表达与HPV16-E6/E7-DNA病毒载量及预后的关系

目的探讨早期宫颈癌组织中自噬相关蛋白-12(ATG-12)与人乳头瘤病毒(HPV)16-E6/E7-DNA病毒载量及预后的关系。方法选取2015年1月至2017年12月期间在安徽皖北煤电集团总医院保存的宫颈活检或手术切除宫颈组织203例,包括30例慢性宫颈炎、18例宫颈上皮内瘤变(CIN)Ⅰ、23例CINⅡ、26例CINⅢ和106例早期(ⅠA2~ⅡB期)宫颈鳞状上皮癌(CSCC)。采用巢式多重聚合酶链式反应(NM-PCR)和免疫组化染色SP法检测组织中HPV 16-E6/E7-DNA病毒载量和ATG-12蛋白表达。分析ATG-12蛋白表达与早期CSCC临床病理特征的关系。随访CSCC患者无瘤生存时间(DFS)。采用Cox风险比例回归模型分析影响CSCC预后的因素。结果CSCC组织ATG-12蛋白阳性表达率为26.42%(28/106),低于慢性宫颈炎和CIN组织(P<0.05)。ATG-12蛋白表达与HPV16-E6/E7-DNA病毒载量呈负相关(r=-0.306,P=0.001;r=-0.436,P=0.001)。ATG-12蛋白表达与FIGO分期、间质浸润、淋巴脉管间隙浸润、淋巴结转移有关(P<0.05)。随访11~64个月,ATG-12蛋白阳性表达患者5年无瘤生存率为78.57%(22/28),ATG-12蛋白表达阴性患者5年无瘤生存率为60.26%(47/78)。多因素Cox风险回归模型结果显示,HPV16-E6/E7-DNA病毒载量和ATG-12蛋白表达是影响患者DFS的独立预后因素(P<0.05)。结论早期宫颈鳞状上皮癌组织中ATG-12阳性表达率低,与HPV16-E6/E7-DNA病毒载量呈负相关,有望成为评估HPV阳性早期宫颈癌患者预后的重要指标。     

HPV16-E2 induces prophase arrest and activates the cellular DNA damage response in vitro and in precursor lesions of cervical carcinoma

Cervical intraepithelial neoplasia (CIN) is caused by human papillomavirus (HPV) infection and is the precursor to cervical carcinoma. The completion of the HPV productive life cycle depends on the expression of viral proteins which further determines the severity of the cervical neoplasia. Initiation of the viral productive replication requires expression of the E2 viral protein that cooperates with the E1 viral DNA helicase. A decrease in the viral DNA replication ability and increase in the severity of cervical neoplasia is accompanied by simultaneous elevated expression of E6 and E7 oncoproteins. Here we reveal a novel and important role for the HPV16-E2 protein in controlling host cell cycle during malignant transformation. We showed that cells expressing HPV16-E2 in vitro are arrested in prophase alongside activation of a sustained DDR signal. We uncovered evidence that HPV16-E2 protein is present in vivo in cells that express both mitotic and DDR signals specifically in CIN3 lesions, immediate precursors of cancer, suggesting that E2 may be one of the drivers of genomic instability and carcinogenesis in vivo.     

脆性组氨酸三联体基因在宫颈癌前病变和宫颈癌中的表达及其与p53和HPV16/18的关系

目的 探讨脆性组氨酸三联体（FHIT）基因缺失与p53的过度表达和人乳头状瘤病毒16和（或）18（HPV16／18）感染在宫颈癌前病变（CIN）和宫颈癌（CC）发生发展中的作用和意义。方法 采用免疫组化SP法检测52例CIN和69例CC中的FHIT基因和p53的表达,以原位杂交方法检测HPV16／18感染情况,并以18例正常宫颈组织作为对照。结果 FHIT在正常宫颈组织（正常组）中呈阳性表达;FHIT在宫颈CIN组中的阴性率为30．8％,在CINⅢ期的表达,明显高于正常组和CINⅠ、Ⅱ期（P〈0．01）;在CC组中阴性率为66．7％（46／69）,明显高于正常组和CIN组（P〈0．01）,且随细胞分化的降低,FHIT阴性率上升。p53和HPV16／18在CC组的阳性率分别达56．5％（39／69）和84．1％（58／69）,均高于CIN和正常组（P〈0．05）,且CC组的p53阳性率随细胞分化的降低而升高（P〈0．01）。CIN和CC组的FHIT阳性和阴性者,p53阳性率差异均无统计学意义（P〉0．05）,相关性分析也显示无相关关系;但两组FHIT阴性者的HPV16／18感染率明显高于FHIT正常表达者（P〈0．01）,FHIT与HPV呈负相关关系。结论 FHIT基因缺失与宫颈癌发生有关,它在CIN中的缺失可能可作为高危型CIN人群的筛选和宫颈癌早期诊断指标。CIN和CC中的FHIT缺失常与p53过度表达同时存在,但两者间无相关性。HPV16／18可能是引起FHIT和p53异常的共同原因。