BACKGROUND: We investigated the clinical significance of excision repair cross-complementation group 1 (ERCC1), breast cancer susceptibility 1 (BRCA1), and class III β-tubulin (TUBB3) expression in thymic epithelial tumors. METHOD: Fifty-six patients with thymic epithelial tumors were included in this study. Tumors sections were stained by immunohistochemistry for ERCC1, BRCA1, TUBB3, microvessel density, and p53. RESULTS: ERCC1, BRCA1, and TUBB3 were expressed in 48%, 50%, and 27%, respectively. The expression of ERCC1, BRCA1, and TUBB3 was significantly correlated with the grade of malignancy in thymic epithelial tumors. These biomarkers were closely associated with p53 and microvessel density and were a prognostic marker for predicting poor outcome. We also found that overexpression of ERCC1 and TUBB3 was associated with resistance to platinum- and taxane-based chemotherapy. CONCLUSION: An expression of ERCC1, BRCA1, and TUBB3 was correlated strongly with each other and was significantly associated with a poor outcome in thymic epithelial tumors. High-ERCC1 and TUBB3 expressions might be associated with resistance to platinum- and taxane-based chemotherapy, respectively.
BACKGROUND: We investigated the clinical significance of excision repair cross-complementation group 1 (ERCC1), breast cancer susceptibility 1 (BRCA1), and class III β-tubulin (TUBB3) expression in thymic epithelial tumors. METHOD: Fifty-six patients with thymic epithelial tumors were included in this study. Tumors sections were stained by immunohistochemistry for ERCC1, BRCA1, TUBB3, microvessel density, and p53. RESULTS:ERCC1, BRCA1, and TUBB3 were expressed in 48%, 50%, and 27%, respectively. The expression of ERCC1, BRCA1, and TUBB3 was significantly correlated with the grade of malignancy in thymic epithelial tumors. These biomarkers were closely associated with p53 and microvessel density and were a prognostic marker for predicting poor outcome. We also found that overexpression of ERCC1 and TUBB3 was associated with resistance to platinum- and taxane-based chemotherapy. CONCLUSION: An expression of ERCC1, BRCA1, and TUBB3 was correlated strongly with each other and was significantly associated with a poor outcome in thymic epithelial tumors. High-ERCC1 and TUBB3 expressions might be associated with resistance to platinum- and taxane-based chemotherapy, respectively.
Authors: Hee Young Na; Mira Park; Young A Kim; Jae Kyung Won; Young Joo Park; Sun Ah Shin; Sejoon Lee; Sohee Oh; Ji Eun Kim Journal: J Clin Med Date: 2020-11-26 Impact factor: 4.241
Authors: Jian-min Fu; Jie Zhou; Jian Shi; Jian-sheng Xie; Li Huang; Adrian Y S Yip; Wings T Y Loo; Louis W C Chow; Elizabeth L Y Ng Journal: J Transl Med Date: 2012-09-19 Impact factor: 5.531