@article {7758, title = {MBL2 polymorphisms in women with atypical squamous cells of undetermined significance.}, journal = {J Med Virol}, volume = {87}, year = {2015}, month = {2015 May}, pages = {851-9}, abstract = {

Infection with high risk Human papillomavirus (HPV) is the main known cause of cervical cancer. HPV induces different grades of lesions: among them, Atypical squamous cells of undetermined significance are abnormal lesions that could evolve in pre-cancer lesions or spontaneously regress. The mannose binding lectin (MBL) is an innate immunity serum protein also found in cervico-vaginal mucosa, whose expression is known to be affected by polymorphisms in exon 1 and promoter of the MBL2 gene. In the present study the possible association between MBL2 functional polymorphisms and susceptibility to develop atypical squamous cells of undetermined significance was investigated in a group of women from North-East of Italy, stratified for HPV infection status. The MBL2 D and O alleles and the deficient producer combined genotypes, responsible for low MBL production, were more represented among atypical squamous cells of undetermined significance positive women than healthy controls and the results were confirmed when only HPV negative samples were considered. These results suggest a possible involvement of MBL2 functional polymorphisms in atypical squamous cells of undetermined significance susceptibility.

}, keywords = {Adolescent, Adult, Atypical Squamous Cells of the Cervix, Female, Gene Frequency, Genetic Predisposition to Disease, Humans, Italy, Mannose-Binding Lectin, Polymorphism, Single Nucleotide, Young Adult}, issn = {1096-9071}, doi = {10.1002/jmv.24080}, author = {Zupin, Luisa and Polesello, Vania and Casalicchio, Giorgia and Freato, Nadia and Maestri, Iva and Comar, Manola and Crovella, Sergio and Segat, Ludovica} } @article {3490, title = {Beta defensin-1 gene polymorphisms and susceptibility to atypical squamous cells of undetermined significance lesions in Italian gynecological patients.}, journal = {J Med Virol}, volume = {86}, year = {2014}, month = {2014 Dec}, pages = {1999-2004}, abstract = {

The role of the human beta-defensin 1 (hBD-1) in the susceptibility to the onset of the Atypical Squamous Cells of Undetermined Significance (ASCUS) lesion, in the presence or not of HPV infection, is still unknown. In the current study, the three functional single nucleotide polymorphisms (SNPs) -52G > A, -44C > G, and -20G > A at the 5{\textquoteright} un-translated region (UTR) of DEFB1 gene, encoding hBD-1, were analyzed in ASCUS lesion gynecological patients and healthy women from the north-east of Italy (Trieste). Cervical samples from 249 European-Caucasian women were collected, screened for HPV and cytologically evaluated; DEFB1 genotyping has been performed by direct sequencing. No significant differences were found for -52G > A, -44C > G, and -20G > A SNPs allele and genotype frequencies between women with and without ASCUS lesions. DEFB1 minor haplotypes were significantly more frequent in ASCUS lesion positive than negative women, associating with an increased risk of this type of lesion. When women were stratified according to HPV infection status, significant differences in the distribution of -52G > A SNP genotype frequencies were found: the presence of the A allele in the homozygous genotype A/A associated with a lower risk of developing ASCUS lesions in HPV negative women. DEFB1 minor haplotypes were also associated with an increased risk of developing ASCUS lesions, being significantly more frequent in HPV negative women with lesions, than without lesions. Although these results highlight the possible involvement of DEFB1, further studies are needed to support the role of DEFB1 in the modulation of the susceptibility to ASCUS lesions.

}, keywords = {5{\textquoteright} Untranslated Regions, Adolescent, Adult, Atypical Squamous Cells of the Cervix, beta-Defensins, Female, Genotype, Humans, Italy, Papillomavirus Infections, Polymorphism, Single Nucleotide, Sequence Analysis, DNA, Uterine Cervical Neoplasms, Young Adult}, issn = {1096-9071}, doi = {10.1002/jmv.23878}, author = {Casalicchio, Giorgia and Freato, Nadia and Maestri, Iva and Comar, Manola and Crovella, Sergio and Segat, Ludovica} } @article {1972, title = {Comparison of hybrid capture II, linear array, and a bead-based multiplex genotyping assay for detection of human papillomavirus in women with negative pap test results and atypical squamous cells of undetermined significance.}, journal = {J Clin Microbiol}, volume = {50}, year = {2012}, month = {2012 Dec}, pages = {4041-6}, abstract = {

Many methods with different levels of analytical sensitivity and clinical specificity have been developed to detect the presence of high-risk (HR) types of the human papillomavirus (HPV) in cervical samples. The Hybrid Capture II (HC-II) assay is broadly used for primary screening. In addition, several HPV genotyping assays, based on PCR methods, display higher sensitivity than the HC-II and are also used in screening programs. We evaluated the performance of three HPV DNA tests, namely, the HC-II, the Linear Array (LA) HPV genotyping assay, and an HPV type-specific E7 PCR bead-based multiplex genotyping assay (TS-MPG) that is a laboratory-developed method for the detection of HPV, in 94 women with atypical squamous cells of undetermined significance (ASC-US) and in cytological samples from 86 women with a negative Pap test. The HPV prevalence with the TS-MPG assay was increased compared to the prevalence with the LA and HC-II assays. The HPV DNA prevalence in women with ASC-US was greater with the TS-MPG assay (46.2\%) than with the LA (36.3\%) and HC-II (29.7\%) assays. The HPV DNA prevalence in the control group was greater with the TS-MPG assay (32.1\%) than with the LA assay (10.7\%). Two women with ASC-US who were HPV DNA negative by the HC-II and positive by the TS-MPG or/and LA assays had lesions that progressed to low-grade squamous intraepithelial and high-grade squamous intraepithelial lesions. This study shows that the TS-MPG assay exhibited higher analytical sensitivity than the LA and HC-II assays for the detection of HPV DNA, which reduces the potential to incorrectly identify a woman{\textquoteright}s HPV infection status.

}, keywords = {Adult, DNA, Viral, Female, Humans, Molecular Diagnostic Techniques, Papillomavirus Infections, Sensitivity and Specificity, Uterine Cervical Neoplasms, Virology}, issn = {1098-660X}, doi = {10.1128/JCM.02105-12}, author = {Comar, Manola and Iannacone, Michelle R and Casalicchio, Giorgia and McKay-Chopin, Sandrine and Tommasino, Massimo and Gheit, Tarik} }