Study on the zona pellucida 4 (ZP4) gene sequence and its expression in the ovaries of patients with polycystic ovary syndrome.

Background: Polycystic ovary syndrome (PCOS) is a common endocrine disorder of unknown pathology, involving reproductive and metabolic abnormalities. Oocyte-specific genes are a group of genes expressed exclusively in ovarian tissue; therefore, they can play an important role in ovarian pathologies such as PCOS. The zona pellucida 4 (ZP4) gene encodes glycoprotein which is a part of the extracellular matrix of oocyte.

Bilateral androblastoma (Sertoli-stromal cell tumor) of the ovary: a rare cause of virilization in a teenager.

A case of a 17-year-old patient diagnosed with bilateral androblastoma of the ovary is presented. The patient was admitted because of secondary amenorrhea, hirsutism and acne. After clinical, ultrasonographic and hormonal examinations an androgen-producing ovarian tumor was suspected and consequently laparotomy with right ovarian tumor excision and left ovary exploration was carried out.

Folate and choline metabolism gene variants in relation to ovarian cancer risk in the Polish population.

Data indicates that genetic factors alone do not account for ovarian tumorigenesis, suggesting that epigenetic status additionally affects this process. Therefore, we assessed the possible contribution of polymorphic variants of genes that may affect DNA methylation to the risk of ovarian cancer incidence in the Polish population. Using PCR-RFLP and HRM analyses, we studied the distribution of BHMT (rs3733890), MTHFD1 (rs2236225), MTHFR (rs1801133), MTR (rs1805087), MTRR (rs1801394) and TCN2 (rs1801198) genotypes and alleles in patients with ovarian cancer (n = 136) and controls (n = 160).

Increased expression of HIF-1A and its implication in the hypoxia pathway in primary advanced uterine cervical carcinoma.

The development of cervical cancer exhibits some unique differences compared to other solid tumors. Normal cervical stratified epithelia have characteristics of hypoxic tissue. Lack of oxygen (hypoxia) induces the HIF-1 (hypoxia-inducible factor-1) transcription factor, which is a heterodimer composed of a constitutively expressed β subunit and a hypoxia-inducible α-subunit.

Transcriptional analysis of CXCR4, DNMT3A, DNMT3B and DNMT1 gene expression in primary advanced uterine cervical carcinoma.

The development of cervical cancer requires genetic and epigenetic factors which result in the persistence of a malignant phenotype. Cervical cancer exhibits also some unique differences from other solid tumors. Normal cervical stratified epithelia have characteristics of hypoxic tissue with over-expression of HIF-1 (hypoxia-inducible factor-1) transcription factor, which targets the transcription of over 70 genes involved in many aspects of cancer biology.

Reduced expression of PHD2 prolyl hydroxylase gene in primary advanced uterine cervical carcinoma.

Decreased PHD2 expression in human carcinomas has been considered a critical factor in supporting tumor angiogenesis and growth. We studied the levels of PHD2 transcript and protein in advanced cervical cancer specimens (n=27) and normal uterine cervical tissue samples (n=27). Real-time quantitative PCR and Western blotting analysis showed significantly lower levels of PHD2 transcript (P=0.

[Preinvasive vulvar and cervical cancer in a 32-year-old woman, DNA HPV 16 positive with mtDNA mutation--case study].

Coincidence of preinvasive vulvar and cervical cancer in young women is very rare. Lesions like VIN 3/preinvasive vulvar cancer and CIN 3/preinvasive cervical cancer are strictly connected with viral infection and are multilocular. In the presented case the following tests have been performed: HPV DNA test for the presence of 13 oncogenic HPV types, mRNA HPV test for the presence of transcripts for HPV 16, 18, 31, 33, 45 and the analysis of mtDNA D-Loop region.

Analysis of hMLH1 and hMSH2 expression in cisplatin-treated ovarian cancer patients.

Background: Loss of DNA mismatch repair may result in resistance to platinum- based anticancer drugs. The hMLH1 and hMSH2 proteins play a critical role in the maintenance of genome integrity and are involved in resistance to platinum-based therapy in colorectal cancer, which is deficient in hMLH1 protein and endometrial cancer, as well as in hMSH2 protein. However, the predictive value of MLH1 and MSH2 expression in ovarian cancer cisplatin-resistance is still to be determined.

The 3020insC NOD2 gene mutation in patients with ovarian cancer.

Objective: There is an increasing evidence that genetic factors play a role in the etiology of malignant tumors. Mutations of BRCA1 and BRCA2 genes are responsible for an increased risk of ovarian cancer. The role of mutations in NOD2 gene in this type of neoplasm is still under investigation.

[Assesment of real optoelectronic method in the detection of cervical intraepithelial neoplasia].

Introduction: Biophysics is becoming an important factor in prevention of cervical cancer. One of the most promising concepts of biophysical program for the prevention of cervical cancer is the optoelectronic method--Truscreen.

Objective: The objective of the work was to determine the usefulness of the real optoelectronic device in the detection of cervical intraepithelial neoplasia

Material And Method: From August 2006 till September 2007, 147 patients were examined in the Laboratory of Pathophysiology of Uterine Cervix in Gynecology and Obstetrics Clinical Hospital of Karol Marcinkowski University of Medical Sciences.

Serum and tissue levels of insulin-like growth factor-I in women with dysplasia and HPV-positive cervical cancer.

The ectocervical epithelium is the target of the oncogenic human papillomavirus (HPV), which acts as an etiological agent in the development of cervical carcinoma. However, the HPV-mediated transformation of human epithelial cells is a multi-step process dependant on unknown factors additional to the virus, which is a necessary but, in and of itself, insufficient catalyst. In the present study, we characterized the role of insulin-like growth factor-I (IGF-I) in this process.

[Agresive variants of uterine cervical cancers].

Three different variants of biologically agressive cervical cancers, such as: basaloid carcinoma, glassy cell carcinoma and small cell endocrine carcinoma, have been reported. Hematoxylin and eosin, periodic acid-Schiff and immunohistochemical stains were used. The course of disease and aplication of treatment has been analyzed as well.

The level of antibody against E6 HPV 16 oncoprotein in blood sera of women with chronic HPV 16 infection and cervical cancer.

Unlabelled: The aim of this study was to estimate of the role of chronic HPV 16 infection and the presence of anti E6 HPV 16 in the initiation of the cancerogenesis process of cervical cancer.

Material And Methods: The study included two groups of patients. The first group comprised 323 women observed for three consecutive years (1998-2000), in whom the presence of HPV 16 viruses was estimated by PCR, and the level of anti E6 HPV 16 antibodies was estimated in the plasma with ELISA.

[Diagnosis of papilloma viruses in cervical cancer in 414 women from Wielkopolska region by the immunohistochemical assessment].

Objectives: Cervical cancer in Poland is second most common type of cancer, after breast cancer. There are known risk factors of cervical cancer development and the most serious one is human papilloma virus infection (HPV).

Design: The aim of our paper is present the result study 414 cervical cancer of women from Wielkopolska region treated at the Department of Gynecology and Obstetrics, Karol Marcinkowski University of Medical Sciences in Poznań.

[Biomarkers in primary ovarian cancers and after chemotherapy].

The authors analyzed the expression of oncogen and antioncogen proteins using immunoperoxidase technique with monoclonal antibodies in 49 primary ovarian carcinomas and 38 cancers after chemotherapy (second look) There was not found independent prognostic marker. But some results suggest, that in the individual cases estimate proliferative activity and overexpression P53 may give some information about intensitivity and quality of chemotherapy.

[Immunohistochemical examination oncogenic c-erb-b2, egf-r proteins and antioncogenic p53 protein in vulvar cancers HPV-16 positive and negative].

In vulvar cancers HPV 16 positive, HPV 16 negative, and vulvar and vaginal precancerous status (VIN, VAIN) immunohistochemical technik onko- and antioncogenic proteins were evaluated. The contrary correlation between HPV 16 presence and overexpression p53 were detected. It suggest the heterogenic etiology of these cancers.

[Androblastoma in a female patient with the signs of virility: a clinical-morphological and genetic study].

We report a case of 24 year old patient with secondary amenorrhea, virilization and elevated serum testosterone concentration, in which cystic-solid tumor in right ovary was found. Surgical treatment was applied--adnexectomy. Histopathologic examination supported suspicion of androblastoma.

[Ovarian gonadal tumors in materials of the clinic of gynecological endocrinology of the Medical Academy in Poznań (1970-1998)].

11 patients with ovarian gonadal tumors were treated at Clinic of Endocrinological-Gynecology of Academy of Medicine in Poznań. All presented symptoms of hormonal ovetproduction. In 9 cases we performed adnexectomy, only in 1 case (patient after menopause) hysterectomy with bilateral adnexectomy.

Study on interaction of proteins isolated from epithelial cervical tissue with glucocorticoid-response element of HPV16.

Genital HPV16 has tropism to cervical epithelial tissue which is highly steroid hormone dependent. Protein/DNA interaction with the fragment of viral DNA containing the glucocorticoid-response element (GRE/PRE) did not indicate the proteins which can bind to the GRE element in normal epithelial cervical tissue. NFI is one of the cellular factors which can participate in the transcription of viral genes in study tissue.

[Frequency of human papillomavirus-herpes simplex-cytomegalovirus and Chlamydia trachomatis infection in genital tracts of sexual partners].

Objectives: Much attention is given nowadays to the role of Human Papillomavirus, Herpes simplex virus, Cytomegalovirus, and Chlamydia trachomatis--infections in cervical carcinogenesis. Cytomegalovirus, Herpes simplex and Chlamydia trachomatis are now thought to be teratogenic to humans.

Design: We investigated the prevalence of HPV, HSV, CMV and Chlamydia trachomatis in genital tracts of sexual partners.

[Doppler ultrasonography for detection of pathologic changes in uterine body endometrium].

This study was conducted to evaluate the role of transvaginal color Doppler ultrasonography in detecting endometrial pathology in postmenopausal women A group of 140 women with abnormal postmenopausal bleeding was examined by TVS with color Doppler before D & C. Histopathologic and blood flow characteristics were evaluated. Abnormal blood flow characteristics were evaluated.

[Primary melanoma of the uterine cervix in a 19 year old woman--case report].

Unlabelled: Only 5% of all melanocytic malignancies in women originate in the genitalia, the most unusual of which is melanoma involving the uterine cervix.

Case: a 19 year old woman, presented with abnormal genital bleeding. In our hospital the clinical examination showed an exophytic bleeding tumor growing in the cervix uteri.

[Markers of proliferation and morpho-immunologic parameters in evaluation of prognostic factors in endometrial tumors].

There were analysed prognostic factors in endometrial carcinomas. To essential prognostic factors were counted; proportion of cells in S-phase, DNA ploidy, proportion of Ki-67 positive cells and vascular invasion by cancer cells. All above-mentioned factors were not correlated to either the stage or the histopathologic subtype of the cancers.

Human papillomavirus (HPV) in upper genital tract carcinomas of women.

Using nucleic acid hybridization and polymerase chain reaction (PCR) HPV-DNA sequence was detected in endometrial and ovarian carcinomas. This sequence was amplified with primer specific for E1 region of DNA-HPV 18 and hybridized with DNA-HPV 18. The presence of HPV-DNA in cancer studies suggests that human papillomavirus can also be involved in carcinogenesis of the upper genital tract of women.

Lymphocyte subpopulations in the blood of women with HPV 16 positive and negative cervical cancer.

In this study the morphologic features and subpopulation of lymphocytes in the blood of women with uterine cervical cancer HPV 16 positive and HPV 16 negative was compared. The essential morphological differentiation in two groups of cancer was not found, but a statistically significant increase in CD 19 lymphocytes in the blood of women with cervical cancer HPV 16 positive was discovered. The authors suggest, that an increase in CD 19 might be connected with stronger expression of virus-oncogenic antigens on the neoplasma cells.