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  • Title: [Tumor-infiltrating dendritic cells in epithelial ovarian carcinoma and correlation with the expression of vascular endothelial growth factor].
    Author: Mao YY, Chen HZ, Xie X, Ye DF, Lü WG.
    Journal: Zhonghua Fu Chan Ke Za Zhi; 2004 Oct; 39(10):693-7. PubMed ID: 16144569.
    Abstract:
    OBJECTIVE: To investigate the density and activation status of tumor infiltrating dendritic cells (TIDC) in epithelial ovarian carcinoma (EOC) and correlation with the expression of vascular endothelial growth factor (VEGF). METHODS: Streptavidin-peroxidase (SP) and Picture two-step immunohistochemistry methods were used to detect S-100(+), CD(83)(+) TIDC and the expression of VEGF in 57 primary EOCs, 32 benign ovarian tumors (benign control) and 16 normal ovarian tissues (normal control). RESULTS: (1) Two types of heterogeneous distribution pattern of TIDC in EOC were observed under the microscope. The number of S-100(+) TIDC in EOC [median 4.3 cells/high power field (HPF)], was significantly higher than that in benign controls (median 1.8 cells/HPF) and normal controls (median 2.0 cells/HPF, P = 0.000 and 0.015). The number of S-100(+)DC in early stage was significantly higher than that in advanced stage (median 6.0 and 3.8 cells/HPF, P = 0.026). Few CD(83)(+) TIDCs infiltrated tumor stromal tissue in EOC (median 0). (2) The expression of VEGF was significantly higher in EOC than in controls (P = 0.000). (3) The number of S-100(+) DC in EOC was negatively correlated to the expression of VEGF in tumor cells (P = 0.001). CONCLUSIONS: (1) The number of S-100(+) TIDC increases significantly in EOC. Ovarian carcinoma cells may stimulate recruitment of TIDC in EOC, but TIDC can be suppressed by VEGF. (2) Maturation of TIDC in EOC is severely inhibited.
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