ABSTRACT
Human herpesvirus-8 (HHV-8) infection of 130 Hungarian HIV-positive individuals with or without Kaposi's sarcoma was investigated from 158 serum and 122 peripheral blood samples using anti-latency-associated nuclear antigen (LANA) indirect immunofluorescence assay (IFA), recombinant orf65 and orfK8.1 antigen enzyme-linked immunosorbent assays (ELISAs), Western blot assays and orf26 specific nested polymerase chain reaction (PCR). The overall prevalence of HHV-8 infection was found to be 31.5% (41/130) among the Hungarian HIV-positive patients. This seroprevalence rate is 7-11-fold higher than that of healthy HIV-negative blood donors in Hungary. The highest prevalence of HHV-8 infection (36.1%, 35/97) was observed in homo- or bisexual patients. Similar to the serologic results, HHV-8 DNA was not always detectable in all serial samples previously shown to be positive for HHV-8 DNA.
Subject(s)
HIV Infections/complications , Herpesviridae Infections/complications , Herpesviridae Infections/epidemiology , Herpesvirus 8, Human/isolation & purification , Sarcoma, Kaposi/epidemiology , Adolescent , Adult , Aged , Antibodies, Viral/blood , Antigens, Viral/immunology , Blotting, Western , Child , Enzyme-Linked Immunosorbent Assay , Female , Fluorescent Antibody Technique, Indirect , Genes, Viral , Herpesvirus 8, Human/immunology , Humans , Hungary/epidemiology , Male , Middle Aged , Nuclear Proteins/immunology , Polymerase Chain Reaction , Prevalence , Recombinant Proteins , Risk Factors , Sexual Behavior , Viral Proteins/immunologyABSTRACT
The role of A/G polymorphism at nucleotide -1082 in the interleukin-10 (IL-10) promoter was assessed by following the disease course of 253 patients who had had a routine diagnostic Hybrid Capture human papillomavirus (HPV) test because of cytologic or colposcopic abnormalities of the uterine cervix. At baseline, 97 (78%) of the 125 high-risk HPV-positive and 83 (65%) of the 128 HPV-negative patients had equivocal cytologic atypia classified as P3 by the Papanicolaou classification, and the rest of the patients had mild colposcopic atypia with cytologic results of no oncogenic significance. In the high-risk HPV-infected patients, the frequency distribution of the nt -1082 genotypes (A/A: 28%; A/G: 52%; G/G: 20%) did not differ significantly from that in the controls (A/A: 25%; A/G: 51%; G/G: 24%; p = 0.70). On the other hand, the nt -1082 G allele tended to decrease susceptibility to equivocal cytologic atypia unrelated to HPV infection (A/G: OR = 0.56 [95% CI: 0.31-1.02], G/G: OR = 0.27 [95% CI: 0.11-0.63], p for trend = 0.05). With respect to the development of high-grade cervical intraepithelial neoplasia (CIN), the established risk factors, such as high-risk HPV infection (RR = 104.6, 95% CI: 14.2-769.9) and cytologic atypia (RR = 9.6, 95% CI: 2.34-39.7) but not the various nt -1082 genotypes (A/A: reference; A/G: RR = 1.11 [95% CI: 0.59-2.08]; G/G: RR = 0.62 [95% CI: 0.25-1.50]) were found to increase the risk for high-grade CIN. In conclusion, the nt -1082 polymorphism had no influence on the early phase of cervical carcinogenesis but may determine different susceptibilities to cervical abnormalities unrelated to HPV infection.
Subject(s)
Cervix Uteri/pathology , Cervix Uteri/virology , Genetic Predisposition to Disease/genetics , Interleukin-10/genetics , Papillomavirus Infections/genetics , Polymorphism, Genetic/genetics , Promoter Regions, Genetic/genetics , Adenine , Alleles , Cervix Uteri/metabolism , Cross-Sectional Studies , Female , Follow-Up Studies , Genotype , Guanine , Humans , Papillomavirus Infections/diagnosis , White People/geneticsABSTRACT
The oncogenic potential of human papillomavirus (HPV) infection was assessed by following the disease course in 455 patients who had had a routine diagnostic Hybrid Capture HPV test due to squamous cell abnormalities of the uterine cervix as detected by cytology and/or colposcopy. At entry, 308 patients had cytologic atypia classified as P3 by the Papanicolau classification, 168 had a positive high-risk HPV test, and 23 were infected only with low-risk HPV. The patients were followed-up using the patient registry until the endpoint of histologically diagnosed cervical intraepithelial neoplasia (CIN). High-grade CIN was diagnosed in 75 surgical biopsies. High-risk HPV infection (relative risk: 76.8 CI(95): 23.7-249.5), cytologic atypia (RR: 16.2 CI(95): 3.9-66.6), and age above 35 (RR: 1.99 CI(95): 1.26-3.16) were independent risk factors for high-grade CIN, while the viral load did not predict oncogenic progression (P = 0.47). After PCR-RFLP typing, the high-risk types were classified into groups as follows: (1) types 16 and 18, (2) types 45, 52, and 56, (3) types 31, 33, 35, 51, and 58. The relative risks of high-grade CIN were 119.1 (CI(95): 36.2-390.9) for group 1, 44.4 (CI(95): 9.8-201) for group 2, and 39.7 (CI(95): 10.9-144.8) for group 3, respectively. The risk ratios between the groups of high-risk types were found to differ at most by a factor of 2.98 (corrected P value: 0.007) indicating that the oncogenic potential varies moderately within the high-risk group of HPVs.