Different patterns of p16 immunoreactivity in cervical biopsies: correlation to lesion grade and HPV detection, with a review of the literature.

p16 is one extensively studied marker in gynecological pathology. However, its routine application in the diagnosis of squamous intraepithelial lesions of the uterine cervix may present difficulties for the general pathologist. The aim of the present study was to examine a series of 100 cervical biopsies/LEEP specimens, with detailed HPV-typing, for patterns of p16 immunoreactivity and possible correlations with morphology and HPV types.

Correlation between cyclin B1 immunostaining in cervical biopsies and HPV detection by PCR.

In recent years, experimental data on the roles of viruses and cyclin B1 in G2/M arrest has accumulated. The aim of our study was to immunohistochemically examine a series of cervical squamous intraepithelial lesions for the presence of cyclin B1 and test for a possible correlation with morphologic findings or human papillomavirus (HPV) types detected by polymerase chain reaction. One hundred and three biopsies and/or conization specimens were examined, including high-grade lesions (25), low-grade lesions (52), biopsies showing nondiagnostic atypia (15), and biopsies without histopathologic alterations (11).

Evaluation of high-risk human papillomavirus types PCR detection in paired urine and cervical samples of women with abnormal cytology.

Background: During the last decade, increasing efforts have focused on HPV detection in self-obtained samples, to increase the overall proportion of patients participating in cervical cancer screening procedures.

Objectives: A clinical evaluation study of an optimized protocol for PCR detection of high-risk human papillomavirus (HPV) types in urine compared with cervical samples in consecutive women referred to the colposcopy clinic with abnormal cervical cytology.

Study Design: Paired urine and cervical specimens were collected from 100 consecutive women referred to the colposcopy clinic with abnormal cervical cytology and normal urine parameters.

Evaluation of HPV 16 PCR detection in self- compared with clinician-collected samples in women referred for colposcopy.

Objectives: A clinical prospective evaluation study was conducted to evaluate PCR detection of high-risk human papillomavirus (HPV) type 16 in self-sampled vaginal compared with clinician-collected cervical specimens.

Methods: Paired vaginal and cervical specimens were collected from 137 consecutive women referred for colposcopy because of abnormal cervical cytology. In-house and a commercial PCR method for HPV type 16 were used.

Quantitative determination of human telomerase reverse transcriptase messenger RNA expression in premalignant cervical lesions and correlation with human papillomavirus load.

Expression of human telomerase reverse transcriptase (hTERT) messenger RNA (mRNA) and human papillomavirus (HPV)-16 load were quantified using real-time polymerase chain reaction and correlated with cytological findings and the presence of HPV infection in cervical specimens. Human telomerase reverse transcriptase mRNA expression was evaluated in 15 (20.5%) of 73 specimens of atypical squamous epithelial cells of undetermined significance, in 62 (39.