The co-infection of human papillomavirus,herpes simple virus-2 and cytomegalovirus in cervical diseases

Objective To investigate infection rate of human papillomavirus as well as the correlation between cervical precancerous lesions and co-infection of human HPV,herpes simple virus-2 (HSV-2) and cytomegalovirus (CMV) in Chinese women of childbearing age in Kunming,Yunnan province. Methods A total of 2128 women (18-24,25-34,35-49 years of age),who had healthy care examination in our institute from January 2010 to March 2011,were selected prospectively in this study.The infection of HPV,HSV-2 and CMV were detected by real-time fluorescence quantitative polymerase chain reaction (FQ-PCR) and cervical precancerous lesions were determined by the ThinPrep liquid-based cytology test (TCT). Results The overall infection rates of high risk HPV (HR-HPV),HSV-2,CMV were 11.04% (235/2128),3.52% (75/2128) and 5.26% (112/2128),respectively.The HR-HPV infection rates in groups of Negative for Intraepithelial Lesion or Malignancy (NILM),Atypical Squamous Cells of Undetermined Significance (ASCUS),Low grade Squamous Intraepithelial Lesion (LSIL),High grade Squamous Intraepithelial Lesion (HSIL),and Squamous Cell Carcinoma (SCC) were 4.29% (82/1912),55.93% (66/118),84.62% (44/52),93.19% (41/44) and 2/2, respectively.HR-HPV infection rates was increased with the development of cervical lesion (r=0.644,P=0.000).No significant difference on the infection rates of HR-HPV and HSV-2 was identified between different age groups (χ2=2.979,P=0.226;χ2=0.798,P=0.671).The peak age groups for CMV infection (7.62%) were 18 to 24 years old and the infection rates of CMV decrease with age.No significant difference of HSV-2 and HR-HPV co-infection was found between the TCT-abnormal (3.24%,7/216) and control groups (2.41%,46/1912,χ2=0.557,P=0.455),and no relationship was found between HSV-2 and HR-HPV infection groups (OR=0.56,95% CI:0.17-1.82).The infection of HR-HPV were related significantly with CMV infection (OR=3.14,95% CI:1.25-7.86). Conclusion HR-HPV infection appears to be the key risk factor for cervical cancer and synergistic interaction may occur between CMV and HPV infections in the development of cervical lesion.(Chin J Lab Med,2013,36:238-241) Key words: Papillomaviridae; Herpes virus 2; human; Cytomegalovirus; Uterine cervical neoplasms