Significance of carbonic anhydraseⅨprotein in fibrotic foci of mammary invasive ductal carcinomas
10.3760/cma.j.issn.0529-5807.2015.04.008
- VernacularTitle:乳腺浸润性导管癌中碳酸酐酶Ⅸ蛋白表达与纤维灶病变的关系
- Author:
Meiping LI
1
;
Lei BAO
;
Hongguang CAI
;
Huiying YANG
;
Wenshun GE
;
Lifang REN
;
Bo LU
Author Information
1. 312000,浙江省绍兴市妇幼保健院病理科
- Keywords:
Carcinoma,ductal,breast;
Carbonic anhydrases;
Fibrosis
- From:
Chinese Journal of Pathology
2015;(4):250-253
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the relationship between fibrotic focus ( FF ) and carbonic anhydrase ( CA) Ⅸin invasive ductal carcinomas ( IDC) of the breast.Methods In 167 cases of IDC, the FF was assessed morphologically, and expression of ER, PR and CA Ⅸ was evaluated using MaxVision immunohistochemistry.Results The expression of CAⅨin IDC with and without FF was 56.3%(45/80) and 28.7%(25/87) respectively, with significant difference (P=0.001).In IDC with FF, the CA Ⅸexpression of tumor cells in tumors with CAⅨ-positive fibroblasts (35/40, 87.5%) was significantly (P<0.001) higher than that in tumors with CAⅨ-negative fibroblasts (10/40, 25.0%).In IDC with FF, the CAⅨexpression of fibroblasts of FF in grade 3 IDC ( 23/33, 69.7%) was significantly ( P =0.006 ) higher than that in grade 1 +2 tumors (17/47, 36.2%).The ER and PR expression of tumor cells in tumors containing CA Ⅸ-negative fibroblasts was 72.5% ( 29/40 ) and 65.0% ( 26/40 ) respectively, whereas the ER and PR expression of tumor cells in tumors containing CAⅨ-positive fibroblasts was 50.0%(20/40) and 42.5% (17/40) respectively; the difference was statistically significant (for both ER and PR, P=0.04 ) .The age of patients with tumors containing CA Ⅸ-negative fibroblasts was significantly ( P=0.002) older than those containing CA Ⅸ-positive fibroblasts.The FF diameter/tumor diameter in tumors containing CA Ⅸ-positive fibroblasts was significantly larger than those containing CA Ⅸ-negative fibroblasts.(3) For the groups of tumor size≤2 cm and tumor size between 2 cm to 5 cm, the diameter of the fibrotic focus was significantly (P<0.01) smaller than the fibrotic focus size of tumors >5 cm in size. Conclusions CA IX expression is correlated with FF, and that in fibroblasts of FF correlated with patients′age, tumor grade, hormone receptors and FF diameter/tumor diameter.CAⅨexpression in FF might be a marker for poor prognosis in patients with breast cancer.
