CHENG Hong,JIANG Jun,YANG Xin-hua,FAN Lin-jun,ZHANG Yi,ZHANG Fan.Influence of neoadjuvant chemotherapy of different regimen on expression of hormonal receptors in breast cancer[J].J Amry Med Univ (J Third Mil Med Univ),2007,29(10):973-975.
CHENG Hong,JIANG Jun,YANG Xin-hua,FAN Lin-jun,ZHANG Yi,ZHANG Fan.Influence of neoadjuvant chemotherapy of different regimen on expression of hormonal receptors in breast cancer[J].J Amry Med Univ (J Third Mil Med Univ),2007,29(10):973-975.DOI:
Objective To study the expression changes of hormonal receptors in breast cancer after neoadjuvant chemotherapy of different regimen. Methods The expressions of estrogen receptor (ER) and progestrone receptor (PR) were examined by immunohistochemical assay in tissue samples of breast cancer before and after neoadjuvant chemotherapy of two different regimens [CTX+EPI+5-Fu (CEF) vs TAX+EPI (TE)]. The difference between the two regimens was compared. Results After neoadjuvant chemotherapy
in 60 cases of TE regimen
the ER expression increased in 15 cases (25.0%) and decreased in 8 cases (13.3%)
the PR expression increased in 12 cases (20.0%) and decreased in 6 cases (10.0%); in 57 cases of CEF regimen
the ER expression increased in 8 cases (14.0%) and decreased in 4 cases (7.0%)
the PR expression of increased in 6 cases (10.5%) and decreased in 3 cases (5.3%). The ER and PR expressions in TE regimen increased significantly after neoadjuvant chemotherapy (P0.05)
but they were of no significant changes in CEF regimen (P0.05). The expression changes of ER and PR were of significant difference between TE regimen and CEF regimen (P0.05). Conclusion The expressions of ER and PR were influenced by neoadjuvant chemotherapy of TE regimen significantly
but insignificantly by that of CEF regimen. The expression changes of hormonal receptor are related to the effect of neoadjuvant chemotherapy.