Expressions of VEGF ,EGFR and Smad4 in breast cancer tissue and their relationship with lymphatic metastasis / 国际检验医学杂志

ABSTRACT

Objective To discuss the expressions of VEGF ,EGFR and Smad4 in breast cancer tissue and their relationship with lymphatic metastasis .Methods 84 patients with breast cancer from June 2014 to June 2016 in our hospital were selected ,immuno-histochemical method was used to detect the expressions of VEGF ,EGFR and Smad4 ,and their relationship with lymphatic metas-tasis was analyzed .Results The positive expression rates of VEGF and EGFR were 22 .62% and 26 .19% respectively in breast cancer tissue ,which were notably higher than those in para-carcinoma tissue(22 .62% and 26 .19% respectively) ,and differences were statistically significant (P<0 .05) .Positive expression rate of Smad4 was 35 .71% in breast cancer tissue ,which was higher than that in para-carcinoma tissue(77 .38% ) ,and the difference was statistically significant (P< 0 .05) .The positive expression rates of EGFR and VEGF were 72 .92% and 70 .83% in Ⅲ + Ⅳ phase ,which were higher than those in Ⅰ + Ⅱ phase(50 .00% and 44 .44% ,respectively) ,differences were statistically significant(P<0 .05) .The positive expression of Smad2 was 25 .00% in Ⅲ +Ⅳphase ,which was lower than that in control group (50 .00% ) ,and the difference was statistically significant (P<0 .05) .The pos-itive expression rates of EGFR and VEGF were 77 .27% and 75 .00% in patients with lymphatic metastasis ,which were higher than those in patients without lymphatic metastasis (47 .50% and 42 .50% ) ,and differences were statistically significant (P< 0 .05) . The positive expression of Smad4 was 22 .73% in patients with lymphatic metastasis ,which was lower than that in patients without lymphatic metastasis (50 .00% ) ,and the difference was statistically significant (P<0 .05) .Pearson analysis showed that the posi-tive expression rates of EGFR and VEGF were positively associated with lymphatic metastasis (r1 =0 .382 ,r2 =0 .425 ,P<0 .05) , and the positive expression rate of Smad2 was negatively associated with lymphatic metastasis (r3 = -0 .468 ,P<0 .05) .Conclusion VEGF ,EGFR and Smad4 play an important role in the occurrence and development of breast cancer .The positive expression rates of EGFR and VEGF were positively associated with lymphatic metastasis ,and the positive expression rate of Smad2 was negatively associated with lymphatic metastasis ,which could have a guiding significance for prognosis of breast cancer .