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  • Title: [Relation of lymphatic microvessel density detected by monoclonal antibody D2-40 with VEGF-C expression in breast cancer].
    Author: Xie XD, Qu SX, Zheng ZD, Song FL, Liu DW.
    Journal: Zhonghua Zhong Liu Za Zhi; 2008 May; 30(5):356-60. PubMed ID: 18953835.
    Abstract:
    OBJECTIVE: To investigate the relationship of lymphatic micovessel density (LMVD) detected by monoclonal antibody D2-40) with the VEGF-C expression in human breast cancer. METHODS: Tissue samples of 102 breast cancers, 25 breast fibroadenomas and 10 normal breasts were collected. Immunohistochemical staining was used to detected the lymphatic micovessels with monoclonal antibody D2-40. The expression of VEGF-C was detect by SP immunohistochemistry, and VEGF-C mRNA by hybridization in situ. RESULTS: In 102 breast cancers, the positive rate of D2-40 was 76.5% (78/102), higher than that in the breast fibroadenomas. LMVD in the periphery of breast cancer was 30.1 lymphatic microvessels per x 100 field of vision, which was significantly higher than that in the central area of the tumors (P = 0.000). The LMVD in the periphery of the breast cancers was correlated with the number of metastatic lymph nodes (r = 0.964, P < 0.01). The positive rates of VEGF-C protein and mRNA were 55.9% (57/102) and 59.8% (61/102), respectively, significantly higher than that in the breast fiberoadenomas and normal breast tissues (chi2 = 11.653, P = 0.003; chi2 = 10.345, P = 0.006), and were significantly correlated with the status of lymph node metastasis, clinical stage and the expressions of c-erbB-2 and p53 protein (P < 0.05). Both of VEGF-C protein and mRNA were significantly correlated with LMVD detected by D2-40 (P < 0.05), especially with the LMVD in the periphery of breast cancers (P < 0.05). CONCLUSION: The monoclonal antibody D240 can be used to detect the lymphatic endothelium in human breast cancer. The lymphatic microvessel density in the periphery of breast cancer is correlated with the lymph node metastasis and expression of VEGF-C. Therefore, VEGF-C may play a significant role in the lymphangiogenesis leading to metastasis of breast cancer.
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