Role of CD10 as a Prognostic Marker in Invasive Breast Carcinoma

Abstract

Introduction: Stromal markers have been proved as important markers in assessing the prognosis of invasive breast cancer. Cluster of Differentiation (CD)10 is a cell surface enzyme with metalloendopeptidase activity which is expressed in stroma of various epithelial malignancies. Aim: To estimate the expression of stromal CD10 expression in breast carcinoma and it’s association with other prognostic markers like Oestrogen Receptor (ER), Progesterone Receptor (PR), Human Epidermal growth factor Receptor 2 (HER2-neu), Ki-67and tumour grade. Materials and Methods: This study was a hospital based cross-sectional study conducted on 50 cases of breast cancer received in histopathology laboratory of the Department of Pathology, Government Medical College, Kottayam during a period of two years from July 2015 to June 2017. Adequate representative sections were taken and Haematoxylin and Eosin (H&E) staining was done. Immunohistochemistry (IHC) of the tissue sections was done by ER, PR, HER2-neu, Ki-67 and CD10. Descriptive statistics was used for the presentation of data showing number and percentages. Mantel-Haenzel (MH) Chi-square test was used for finding the association between CD10 and other prognostic markers of breast carcinoma like ER, PR, HER2-neu and Ki-67. Results: In this study, all patients were females with mean age of 57.26 years. CD10 was found associated with tumour grade with p-value=0.013. The association of CD10 with ER, PR, HER2-neu was statistically insignificant. Though the association of CD10 and Ki-67 was observed (MH Chi-square value was 0.015), but it was not statistically significant (p-value=0.903). Conclusion: A statistically significant association of CD10 with increasing tumour grade was observed and the association of CD10 with ER, PR, HER2-neu and Ki-67 was not significant.

Keywords

• breast carcinoma
• cluster of differentiation 10
• immunohistochemistry
• prognosis
• stromal marker