HPV frequency in penile carcinoma of Mexican patients: important contribution of HPV16 European variant.

The role of human papillomavirus (HPV) infection in penile carcinoma (PeC) is currently reported and about half of the PeC is associated with HPV16 and 18. We used a PCR-based strategy by using HPV general primers to analyze 86 penile carcinomas paraffin-embedded tissues. Some clinical data, the histological subtype, growth pattern, and differentiation degree were also collected.

Extragonadal germ cell tumors are often associated with Klinefelter syndrome.

Klinefelter syndrome is a well documented abnormality of sex differentiation, with an incidence of 1 in 600 newborn males. It is characterized by a 47,XXY or a mosaic karyotype and clinical findings of hypergonadotrophic hypogonadism, small testes, infertility, reduced body hair, gynecomastia, and tall stature. Other conditions like venous disease, autoimmune disorders, mild neurobehavioral deficit, diabetes mellitus, sexual precocity, and osteoporosis may also affect these patients.

[Global expression analysis in uterine cervical cancer: metabolic pathways and altered genes].

High risk human papillomavirus (HPV) infection is considered to be the most important etiological factor of Cervical Uterine Cancer. In order to determine the global expression pattern and to identify possible molecular markers of cervical cancer, cDNA arrays with probe sets complementary to 8,000 human genes were used to examine the expression profiles among 5 cell lines derived from human cervical cancer, three HPV16(+) tumor samples and three normal cervical tissues HPV(-). The levels of expression of different cellular processes were identified.

Microarray comparative genomic hybridization detection of chromosomal imbalances in uterine cervix carcinoma.

Background: Chromosomal Comparative Genomic Hybridization (CGH) has been applied to all stages of cervical carcinoma progression, defining a specific pattern of chromosomal imbalances in this tumor. However, given its limited spatial resolution, chromosomal CGH has offered only general information regarding the possible genetic targets of DNA copy number changes.

Methods: In order to further define specific DNA copy number changes in cervical cancer, we analyzed 20 cervical samples (3 pre-malignant lesions, 10 invasive tumors, and 7 cell lines), using the GenoSensor microarray CGH system to define particular genetic targets that suffer copy number changes.