陰道菌群、宮頸局部T細(xì)胞亞群和炎性因子改變對(duì)HPV感染的影響
發(fā)布時(shí)間:2018-11-01 20:13
【摘要】:目的: 研究不同級(jí)別宮頸病變伴HPV感染患者的陰道菌群、宮頸局部T細(xì)胞亞群和炎性因子的分布特點(diǎn),探討陰道菌群與宮頸局部免疫功能的關(guān)系,并綜合分析它們對(duì)HPV感染及致癌的影響,為如何改善宮頸局部狀態(tài)提供實(shí)驗(yàn)依據(jù),為HPV持續(xù)感染的干預(yù)和清除提供參考意見,為宮頸癌的防治研究提供新的思路。 方法: 研究對(duì)象為2012年3月至2013年10月期間在廣西醫(yī)科大學(xué)附屬腫瘤醫(yī)院婦瘤科因自覺陰道瘙癢或可疑有宮頸病變而就診的患者,最終選取HPV陽性且經(jīng)病理活檢確診為CIN或?qū)m頸癌的患者180例為實(shí)驗(yàn)組,其中CIN組134例(CINⅠ級(jí)35例、CINⅡ級(jí)42例、CINⅢ級(jí)57例),宮頸癌組46例;以HPV陰性且宮頸活檢正常者60例為對(duì)照組。以上患者均在初診時(shí)取陰道分泌物、宮頸分泌物及脫落細(xì)胞、宮頸組織標(biāo)本,用導(dǎo)流雜交基因芯片技術(shù)檢測(cè)HPV-DNA,精密PH試紙測(cè)PH值,,懸滴濕片法檢測(cè)滴蟲,革蘭氏染色檢測(cè)霉菌、線索細(xì)胞、淋球菌、乳酸桿菌,試劑盒檢測(cè)支原體和衣原體,流式細(xì)胞術(shù)及免疫組化法檢測(cè)宮頸CD4+、CD8+T淋巴細(xì)胞,酶聯(lián)免疫吸附實(shí)驗(yàn)(ELISA)檢測(cè)炎性因子IFN-γ、TNF-α、IL-2、IL-4、IL-6、IL-10。 結(jié)果: 1.在CINⅠ、CINⅡ、CINⅢ及宮頸癌組中HPV單一感染率呈上升趨勢(shì),多重感染率呈下降趨勢(shì)(P<0.05)。HPV共檢出18種基因型,高危型HPV的檢出率遠(yuǎn)高于低危型的檢出率,檢出率排在前3位的是HPV16、52和58,且16型感染率隨宮頸病變程度的增加也呈上升趨勢(shì)(P<0.05)。 2.在對(duì)照組、CINⅠ、CINⅡ、CINⅢ及宮頸癌組中細(xì)菌性陰道病、解脲支原體、衣原體的感染及乳酸桿菌的陰性率隨病變程度的增加呈上升趨勢(shì)(P<0.05);滴蟲、霉菌、人型支原體的感染情況無統(tǒng)計(jì)學(xué)意義(P>0.05);所有樣本中未檢測(cè)到淋球菌,無法分析淋球菌感染與宮頸病變的關(guān)系。 3.在對(duì)照組、CINⅠ、CINⅡ、CINⅢ及宮頸癌組的宮頸分泌物中CD4+T占宮頸上皮細(xì)胞的百分比呈下降趨勢(shì)(P<0.05),CD8+T的百分比無明顯差異(P>0.05),但CD4+/CD8+的比值呈下降趨勢(shì)(P<0.05)。各組宮頸組織中CD4陽性表達(dá)率呈下降趨勢(shì),CD8陽性表達(dá)率呈上升趨勢(shì),CD4+/CD8+比值<1的患者所占的比率隨宮頸病變程度的加重也呈上升趨勢(shì)(都有P<0.05)。 4.在對(duì)照組、CINⅠ、CINⅡ、CINⅢ及宮頸癌組的宮頸分泌物中IFN-γ、IL-2的含量均呈下降趨勢(shì),IL-4的含量呈上升趨勢(shì),且IFN-γ/IL-4、IL-2/IL-4的比值也呈下降趨勢(shì)(都有P<0.05);而各組TNF-α、IL-6、IL-10的含量無區(qū)別(P>0.05)。 5.細(xì)菌性陰道病、人型支原體、衣原體的感染是IL-2減少的獨(dú)立危險(xiǎn)因素(P<0.05),細(xì)菌性陰道病、解脲支原體、衣原體感染是IL-4增多的獨(dú)立危險(xiǎn)因素(P<0.05)。 6.將HPV檢測(cè)結(jié)果作為因變量,其他所有研究因素作為自變量逐一進(jìn)行單因素logistic回歸分析,結(jié)果顯示:乳酸桿菌、IFN-γ、IL-2、IL-4在HPV陽性組與陰性組間差異有統(tǒng)計(jì)學(xué)意義(P<0.05);在此基礎(chǔ)上進(jìn)行多因素logistic回歸分析,最終顯示IFN-γ、IL-2、IL-4與HPV感染具有顯著相關(guān)性(P<0.01)。 結(jié)論: 1.宮頸病變的發(fā)展不依賴HPV感染亞型種類的多少,而取決于HPV亞型的致病力。單一高危型HPV感染更易導(dǎo)致宮頸癌的發(fā)生,多重感染并不增加患宮頸癌的機(jī)率。 2.細(xì)菌性陰道病、解脲支原體、衣原體感染的增加及乳酸桿菌的減少與宮頸病變的發(fā)生發(fā)展密切相關(guān)。 3.細(xì)菌性陰道病、解脲支原體、人型支原體、衣原體感染的增加與宮頸局部免疫功能的下降密切相關(guān)。 4.隨宮頸病變程度的加重,宮頸局部CD4+/CD8+及Th1/Th2的比值均逐漸降低;表明宮頸局部免疫功能下降,促進(jìn)了宮頸病變的發(fā)生發(fā)展。 5. IFN-γ、IL-2的含量與HPV感染呈負(fù)相關(guān),乳酸桿菌的陰性率和IL-4的含量與HPV感染呈正相關(guān),且IFN-γ、IL-2的減少及IL-4的增多都是HPV感染的獨(dú)立危險(xiǎn)因素。
[Abstract]:Purpose: To study the distribution characteristics of vaginal flora and local T cell subpopulations and inflammatory factors in different levels of cervical lesions with HPV infection, to investigate the relationship between vaginal flora and local immune function in cervix, and to comprehensively analyze their relationship to HPV infection and carcinogenesis To provide an experimental basis for how to improve the local state of the cervix, provide reference for the intervention and clearance of HPV infection, and provide a new method for the prevention and treatment of cervical cancer. Train of thought. Methods: From March 2012 to October 2013, the subjects who were diagnosed as CIN or cervical cancer were diagnosed with HPV positive and pathological biopsy. 180 cases were experimental group, including 134 cases of CIN (35 cases of CIN 鈪
本文編號(hào):2304973
[Abstract]:Purpose: To study the distribution characteristics of vaginal flora and local T cell subpopulations and inflammatory factors in different levels of cervical lesions with HPV infection, to investigate the relationship between vaginal flora and local immune function in cervix, and to comprehensively analyze their relationship to HPV infection and carcinogenesis To provide an experimental basis for how to improve the local state of the cervix, provide reference for the intervention and clearance of HPV infection, and provide a new method for the prevention and treatment of cervical cancer. Train of thought. Methods: From March 2012 to October 2013, the subjects who were diagnosed as CIN or cervical cancer were diagnosed with HPV positive and pathological biopsy. 180 cases were experimental group, including 134 cases of CIN (35 cases of CIN 鈪
本文編號(hào):2304973
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