Abstract
To investigate the effect of tissue factor pathway inhibitor-2 (TFPI-2) expression on biological behavior of BeWo and JEG-3 cell lines. The expression of TFPI-2 in BeWo and JEG-3 cells was upregulated by pEGFP-N3-TFPI-2 and downregulated by small interference RNA transfection, confirmed by Western blotting assay and real-time polymerase chain reaction (RT-PCR). Boyden chamber, Cell Counting Kit-8 (CCK-8), and Hoechst 33258/terminal deoxynucleotidyltransferase-mediated UTP end labeling (TUNEL) assays were used for migration, invasion, and proliferation/apoptosis analysis, respectively. In Western blotting and RT-PCR assay, protein and messenger RNA (mRNA) expression of TFPI-2 in transfected BeWo and JEG-3 cells were confirmed. Expression of TFPI-2 inhibited BeWo and downregulated JEG-3 cell migration, invasion, proliferation, and induced apoptosis (P < .05) in Boyden chamber, CCK-8, Hoechst 33258, and TUNEL detection, respectively. TFPI-2 expression caused invasion and proliferation impair and induced apoptosis in TFPI-2 regulated BeWo and JEG-3 cells. It provides a clue for potential role of TFPI-2 in trophoblast.
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