Epidermal growth factor receptor is overexpressed in neuroblastoma tissues and cells  

作　　者：Chao Zheng Ruling Shen Kai Li Na Zheng Yuqing Zong Danrong Ye Qingcheng Wang Zuopeng Wang Lian Chen Yangyang Ma 

机构地区：[1]Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai 201102, China [2]Shanghai Biomodel Organism, Shanghai 201203, China [3]Department of Pediatric Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China [4]Department of Pathology, Children's Hospital of Fudan University, Shanghai 201102, China

出　　处：《Acta Biochimica et Biophysica Sinica》2016年第8期762-767,共6页生物化学与生物物理学报（英文版）

摘　　要：Neuroblastoma is the most common abdominal malignant tumor in childhood. Immunotoxin （IT） that targets the tumor cell surface receptor is a new supplementary therapeutic treatment approach. The purpose of this study is to detect the expression of epidermal growth factor receptor （EGFR） in neuroblastoma cell lines and tissues, and to explore if IT therapy can be used to treat refractory neuroblastoma. The EGFR expression in human immunohistochemistry staining. The positive rate tissue and 50.0% in gangliocytoma, respectively, neuroblastoma tissue samples was detected by of EGFR expression was 81.0% in neuroblastoma but without statistical significance between them （P 〉 0.05）. The positive rate of EGFR expression in favorable type and unfavorable type was 62.5% and 92.3%, respectively, but they were not statistically different （P 〉 0.05）. Results from pre- chemotherapy and post-chemotherapy samples showed that there was no significant statistical difference （P 〉 0.05） between them in the EGFR expression. Furthermore, the EGFR expression levels in five neuroblastoma cell lines were measured using cell-based ELISA assay and western blot analysis. The results showed that the expression of EGFR was higher in KP-N-NS and BE（2）-C than those in other cell lines. Our results revealed that there are consistent and widespread expres- sions of EGFR in neuroblastoma tissues as well as in neuroblastoma cell lines, suggesting that it is possible to develop future treatment strategies of neuroblastoma by targeting at the EGFR.Neuroblastoma is the most common abdominal malignant tumor in childhood. Immunotoxin （IT） that targets the tumor cell surface receptor is a new supplementary therapeutic treatment approach. The purpose of this study is to detect the expression of epidermal growth factor receptor （EGFR） in neuroblastoma cell lines and tissues, and to explore if IT therapy can be used to treat refractory neuroblastoma. The EGFR expression in human immunohistochemistry staining. The positive rate tissue and 50.0% in gangliocytoma, respectively, neuroblastoma tissue samples was detected by of EGFR expression was 81.0% in neuroblastoma but without statistical significance between them （P 〉 0.05）. The positive rate of EGFR expression in favorable type and unfavorable type was 62.5% and 92.3%, respectively, but they were not statistically different （P 〉 0.05）. Results from pre- chemotherapy and post-chemotherapy samples showed that there was no significant statistical difference （P 〉 0.05） between them in the EGFR expression. Furthermore, the EGFR expression levels in five neuroblastoma cell lines were measured using cell-based ELISA assay and western blot analysis. The results showed that the expression of EGFR was higher in KP-N-NS and BE（2）-C than those in other cell lines. Our results revealed that there are consistent and widespread expres- sions of EGFR in neuroblastoma tissues as well as in neuroblastoma cell lines, suggesting that it is possible to develop future treatment strategies of neuroblastoma by targeting at the EGFR.

关 键 词：NEUROBLASTOMA IMMUNOTOXIN epidermal growth factor receptor 

分 类 号：S852.31[农业科学—基础兽医学] Q55[农业科学—兽医学]