@article {8314, title = {HPV genotypes distribution in Chlamydia trachomatis co-infection in a large cohort of women from north-east Italy.}, journal = {J Med Microbiol}, volume = {65}, year = {2016}, month = {2016 May}, pages = {406-13}, abstract = {

Human papillomavirus (HPV) and Chlamydia trachomatis are pathogens with oncogenic potential associated with persistent infections. Epidemiological data on C. trachomatis infection status, C. trachomatis/HPV co-infection and the relationship between HPV genotypes in Italian women are only preliminary. The aim of the present study was to characterize the relationship between HPV genotypes and C. trachomatis in an extending cohort of asymptomatic immunocompetent women from an area of north-east Italy. A retrospective study was conducted using Luminex technology on cervical swabs from asymptomatic immunocompetent women, comprising 921 attending the prevention centre for the Cervical Cancer Program and 6214 who had been referred to the Sexually Transmitted Infections Center, with clinical indications of HPV and C. trachomatis infections. A quantitative real-time PCR was performed to assess chronic C. trachomatis infection by heat-shock protein 60 (Hsp60) gene expression. The overall prevalence of the investigated pathogens was 39 \% (359/921) for HPV and 4 \% (251/6214) for C. trachomatis. The Hsp60 gene was detected in 57 \% of the women infected with C. trachomatis. HPV co-infection was present in 58 \% of C. trachomatis-infected women. A high prevalence of co-infection was found in women with chronic C. trachomatis infection (68 \%, P = 0.0002), especially in women <= 25 years (72 \%) where HPV multiple infections were found in 78 \% (P = 0.022). HPV genotype distribution showed that uncommon low-risk genotypes were associated with C. trachomatis. These results indicate a high frequency of co-detection of multiple HPV genotypes in chronically infected young women and suggest that the expression of the C. trachomatis Hsp60 gene may favour HPV infection.

}, issn = {1473-5644}, doi = {10.1099/jmm.0.000245}, author = {Seraceni, Silva and Campisciano, Giuseppina and Contini, Carlo and Comar, Manola} } @article {3587, title = {HPV and Chlamydia trachomatis co-detection in young asymptomatic women from high incidence area for cervical cancer.}, journal = {J Med Virol}, volume = {86}, year = {2014}, month = {2014 Nov}, pages = {1920-5}, abstract = {

Chlamydia trachomatis causing chronic inflammatory diseases has investigated as possible human papillomavirus (HPV) cofactor in cervical cancer. The aim of this study is to evaluate the prevalence of Chlamydia trachomatis and HPV co-infection in different cohorts of asymptomatic women from a Northern Italy area at high incidence for cervical cancer. Cervical samples from 441 females were collected from Cervical Cancer Screening Program, Sexually Transmitted Infectious and Assisted Reproductive Technology centres. HPV and Chlamydia trachomatis were detected simultaneously and genotyped using a highly sensitive bead based assay. The overall prevalence of Chlamydia trachomatis was estimated 9.7\%, in contrast with the reported national data of 2.3\%, and co-infection with HPV was diagnosed in the 17\% of the samples. In females <= 25 years of age, the infection reached a peak of 22\% and co-infection with HPV of 45.8\% (P < 0.001). Of note, in young females diagnosed with low grade cervical lesions, no significant difference between Chlamydia trachomatis and HPV distribution was observed, while differently, HPV co-infection was found significantly associated to the presence of intraepithelial lesions when compared to older females (20\% vs. 1\%; P < 0.001). In this study, the use of a high sensitive molecular technique exhibited higher analytical sensitivity than the referred assays for the diagnosis of Chlamydia trachomatis and HPV co-infection in asymptomatic females, leading to reduction of the potential to identify incorrectly the infection status. An active screening for timely treatment of Chlamydia trachomatis infection is suggested in young females to evaluate a possible decrease in incidence of pre-cancer intraepithelial lesions.

}, keywords = {Adolescent, Adult, Age Factors, Cervix Uteri, Chlamydia Infections, Chlamydia trachomatis, Coinfection, Female, Genotype, Humans, Incidence, Italy, Middle Aged, Papillomaviridae, Papillomavirus Infections, Prevalence, Young Adult}, issn = {1096-9071}, doi = {10.1002/jmv.24041}, author = {Bellaminutti, Serena and Seraceni, Silva and De Seta, Francesco and Gheit, Tarik and Tommasino, Massimo and Comar, Manola} } @article {1986, title = {High prevalence of serum antibodies reacting with simian virus 40 capsid protein mimotopes in patients affected by malignant pleural mesothelioma.}, journal = {Proc Natl Acad Sci U S A}, volume = {109}, year = {2012}, month = {2012 Oct 30}, pages = {18066-71}, abstract = {

Human malignant pleural mesothelioma (MPM) is considered a rare tumor, but recent estimations indicate that one-quarter million people will die of this neoplasm in Europe in the next three decades. The mineral asbestos is considered the main causative agent of this neoplasm. MPM is largely unresponsive to conventional chemotherapy/radiotherapy. In addition to asbestos exposure, genetic predisposition to asbestos carcinogenesis and to simian virus (SV)40 infection has also been suggested. SV40 is a DNA tumor virus found in some studies to be associated at high prevalence with MPM. SV40 sequences have also been detected, although at a lower prevalence than in MPM, in blood specimens from healthy donors. However, some studies have failed to reveal SV40 footprints in MPM and its association with this neoplasm. These conflicting results indicate the need for further investigations with new approaches. We report on the presence of antibodies in serum samples from patients affected by MPM that specifically react with two different SV40 mimotopes. The two SV40 peptides used in indirect ELISAs correspond to viral capsid proteins. ELISA with the two SV40 mimotopes gave overlapping results. Our data indicate that in serum samples from MPM-affected patients (n = 97), the prevalence of antibodies against SV40 viral capsid protein antigens is significantly higher (26\%, P = 0.043) than in the control group (15\%) represented by healthy subjects (n = 168) with the same median age (66 y) and sex. Our results suggest that SV40 is associated with a subset of MPM and circulates in humans.

}, keywords = {Amino Acid Sequence, Antibodies, Viral, Capsid Proteins, Enzyme-Linked Immunosorbent Assay, Female, Humans, Male, Mesothelioma, Molecular Sequence Data, Pleural Neoplasms, Pregnancy, Simian virus 40}, issn = {1091-6490}, doi = {10.1073/pnas.1213238109}, author = {Mazzoni, Elisa and Corallini, Alfredo and Cristaudo, Alfonso and Taronna, Angelo and Tassi, Gianfranco and Manfrini, Marco and Comar, Manola and Bovenzi, Massimo and Guaschino, Roberto and Vaniglia, Francesca and Magnani, Corrado and Casali, Ferruccio and Rezza, Giovanni and Barbanti-Brodano, Giuseppe and Martini, Fernanda and Tognon, Mauro G} } @article {1778, title = {High prevalence of BK polyomavirus sequences in human papillomavirus-16-positive precancerous cervical lesions.}, journal = {J Med Virol}, volume = {83}, year = {2011}, month = {2011 Oct}, pages = {1770-6}, abstract = {

High- and low-grade cervical lesions were analyzed for the presence of polyomavirus (PYV) and human papillomavirus (HPV) sequences. In precancerous cervical lesions, the overall prevalence of PYV sequences was 44\% (41/93). Specifically, among the PYV-positive samples, 83\% (34/41) tested positive for BK polyomavirus (BKV) sequences, whereas 17\% (7/41) were positive for JC-virus. None of the samples were positive for simian virus 40. The presence of BKV DNA in high-grade squamous intraepithelial lesions was confirmed by in situ PCR. BKV sequences were detected more frequently in high-grade squamous intraepithelial lesions, together with the genotype HPV-16. The association of BKV with precancerous cervical lesions suggests that this polyomavirus participates with HPV-16 in the cell transformation process. Alternatively, BKV might multiply better in HPV-16-positive cells from precancerous cervical lesions than in HPV-16-negative cells.

}, keywords = {Adult, BK Virus, Cervical Intraepithelial Neoplasia, Cervix Uteri, DNA, Viral, Female, Human papillomavirus 16, Human papillomavirus 18, Human papillomavirus 31, Humans, JC Virus, Middle Aged, Oncogene Proteins, Viral, Papillomavirus Infections, Precancerous Conditions, Simian virus 40, Uterine Cervical Diseases}, issn = {1096-9071}, doi = {10.1002/jmv.22184}, author = {Comar, Manola and Bonifacio, Daniela and Zanconati, Fabrizio and Di Napoli, Michela and Isidoro, Erica and Martini, Fernanda and Torelli, Lucio and Tognon, Mauro} }