GAO Yanchun, et al. The role of Cyclooxygenase-2 and vascular endothelial growth factor-C in lymphatic metastasis of breast cancer[J]. Journal of Chongqing Medical University, 2007,(9):915-918.
GAO Yanchun, et al. The role of Cyclooxygenase-2 and vascular endothelial growth factor-C in lymphatic metastasis of breast cancer[J]. Journal of Chongqing Medical University, 2007,(9):915-918.DOI:
Objective: To investigate the expression of Cyclooxygenase-2(COX-2) and vascular endothelial growth factor-C (VEGF-C) proteins
and their relationship with lymphatic metastasis of breast cancer.Methods: Immunohistochemical staining was used to detect the expression of COX-2 and VEGF-C proteins in 45 cases of breast cancer.The relationship was analyzed between the expression of VEGF-C
COX-2 and age
tumor size
the protein expression of estrogen receptor(ER) and progesterone receptor(PR)
clinic phase
axillary lymph node metastasis.Results: The expression rates of COX-2 and VEGF-C in Ⅲ and Ⅳ stages of breast cancer were higher than those ofⅠand Ⅱ stages(P< 0.05).There was higher expression in the positive group of axillary lymphnode metastasis than that in the negtive group(P< 0.05).However
there were no correlations with ages
tumor size
ER and PR
etc.The expression rate of VEGF-C in the COX-2-positive group was higher than that in the negtive group
which were 76.2% vs 43.6%
respectively(P< 0.05).The expression of COX-2 and VEGF-C in breast cancer showed a positive correlation(r=0.579
P < 0.05) Conclusions: In breast cancer
The expression of COX-2 is significantly associated with clinic stage and axillary lymph node metastasis
and COX-2 could promote tumor cells to secrate VEGF-C and then accelerate lymphatic metastasis.