American Journal of Biomedical Research. 2014, 2(1), 1-6DOI:
Abstract: Introduction: GATA6 is a transcription factor which has role in the induction of cell differentiation genes and the maintenance of the differentiated state of epithelial cells. GATA6 expression is lost in neoplastic ovarian epithelia cells and in ovarian carcinoma leading to abnormal nuclear morphology characteristic of most cancer cells. We investigated the profile of GATA6 in cells collected from cervical-uterine smears (CUS) of women in the gynecologic service of three hospitals in Benin. Objective: To utilize GATA6 as molecular marker for the screening of women at risk of developing cervical carcinomas. Methods: CUS were collected from forty (40) women coming for regular checkup (a) at the National University Hospital (CNHU) in Cotonou and (b) from the local hospital of Mènontin (HZ) in Cotonou (south of Benin); (c) forty other (40) CUS were collected from women coming for treatment against HIV1 in the service of gynecology of the Departmental University Hospital (CHDU) of Borgouin Parakou (north of Benin). GATA6 was analyzed in cells isolated from 80 CUS totally by the immunoblotting techniques. Results: In women from Cotonou, GATA6waspresent in 17/40 (42%) CUS, lightly expressed in 10/40 (25%) CUS and totally absent in /40 (32.5%) CUS. In the HIV1 infected women under treatment in Parakou, GATA6 was present in 8/40 (20%) CUS, lightly expressed in 13/40 (32.5%) and totally lost in 19/40 (47.5%) CUS. Conclusion: Our study showed that the loss of GATA6 in CUS was significantly higher in the population of women infected with HIV1 than in women from regular population in Cotonou. Thus the deficiency in GATA6 expression maybe utilizedas diagnostic tools to identify women at risk for developing cervical carcinomas regardless the infectious status before the onset of neoplasia.