RT Journal Article SR Electronic T1 Tissue Factor-Factor VIIa Complex Induces Epithelial Ovarian Cancer Cell Invasion and Metastasis Through a Monocytes-Dependent Mechanism JF International Journal of Gynecologic Cancer JO Int J Gynecol Cancer FD BMJ Publishing Group Ltd SP 616 OP 624 DO 10.1097/IGC.0b013e3182150e98 VO 21 IS 4 A1 Zhengwen Ma A1 Ting Zhang A1 Ruili Wang A1 Zhongping Cheng A1 Hong Xu A1 Weiping Li A1 Ying Wang A1 Xipeng Wang YR 2011 UL http://ijgc.bmj.com/content/21/4/616.abstract AB Objective: Tumor-associated macrophage infiltration and up-regulation of tissue factor-factor VII (TF-FVIIa) complex have been observed in the peritoneum and stroma of epithelial ovarian cancer (EOC). However, it is not clear how tumor-associated macrophage and TF-FVIIa complex promotes EOC invasion. In the present study, we aimed to determine the mechanism by which interaction of TF-FVIIa and monocytes (MOs) promotes EOC metastasis.Method: Matrigel invasion assay was used to analyze the potential of EOC metastasis. Enzyme-linked immunosorbent assay and real-time polymerase chain reaction were used to detect expressions of cytokines and chemokines. Fluorescence-activated cell sorting was used to count the percentage of CD14, CD68, and CD163 of MOs.Results: We found that the TF-FVIIa complex caused dynamic changes in MOs cytokine and chemokine expression. CD14 and CD163 were also upregulated on MOs by TF-FVIIa. Epithelial ovarian cancer cells were cocultured with TF-FVIIa-stimulated MOs, demonstrating increased invasion potential. Interleukin 8 (IL-8) was proposed as the major chemoattractant mediating EOC invasion based on MOs messenger RNA and protein expression profiles. Anti-IL-8 monoclonal neutralizing antibody attenuated EOC cell invasion in a concentration-dependent manner, and tumor necrosis factor α from TF-FVIIa-stimulated MOs was observed to amplify IL-8 production. The following transcription factors in MOs were activated by TF-FVIIa and inhibited by the tissue factor pathway inhibitor: oncogenes HIF-1α, HIF-1β, Oct I, Oct II, and Egr-1; inflammatory mediators c-Fos and c-Rel; and STAT family members STAT5A and STAT5B.Conclusions: Our study suggested that the interaction between the TF-FVIIa complex might play a role in mediating EOC invasion and metastasis depending on MOs mechanism.