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2004 DEC 2 - (NewsRx.com & NewsRx.net) -- Suppressed E1AF limits the invasiveness of cervical cancer.
According to a study from Japan, "E1AF/PEA3, a member of the Ets family of transcription factors, is associated with the malignant characteristics of cancer cells. The initial aim of our study was to test whether the invasiveness of SiHa cervical cancer cells could be diminished by transfection with antisense E1AF. Using an in vitro invasion assay in which cells penetrate a layer of Matrigel, we found that this was not the case; indeed, the invasiveness of the transfectants was enhanced."
"To better understand the mechanism of this enhancement, we used the cDNA microarray technique to search for genes whose expression was altered in the antisense E1AF-transfected SiHa cells. Among several genes affected, we found that expression of squamous cell carcinoma antigen (SCCA), a member of the ovalbumin serine proteinase inhibitor family, was significantly reduced," wrote M. Iwasaki and colleagues, Sapporo Medical University, Department of Obstetrics and Gynecology.
"Forced expression of E1AF enabled activation of SCCA expression, and luciferase reporter assays revealed that E1AF activates the SCCA promoter. Introduction of antisense SCCA into SiHa cells inhibited ...
Source: HighBeam Research, Suppressed E1AF limits the invasiveness of cervical cancer.