De-Bin Liu1, Zhen-Dong Gu, Xiao-Zhe Cao, Hong Liu, Ji-You Li. 1. Department of Thoracic Surgery, Peking University School of Oncology, Beijing Cancer Hospital, Beijing Institute for Cancer Research, Beijing 100036, China. dbliumd@sohu.com
Abstract
AIM: To evaluate the expression pattern of two novel oncofetal antigens, the HoxD9 and Pbx1 homeoproteins in esophageal squamous cell carcinomas (ESCCs) to determine what role they would play in the carcinogenesis of ESCC. METHODS: We obtained tissue samples of ESCC from 56 patients who underwent esophagectomy but not preoperative chemotherapy or radiotherapy. The diagnosis of ESCC was established and confirmed by staff pathologists. We used a highly sensitive, indirect, immunocytochemical method to detect HoxD9 and PbX1 proteins. We qualitatively and quantitatively evaluated cells that exhibited and staining using a light microscope. RESULTS: In all observed carcinoma tissue samples, more than 60% of neoplastic cells stained lightly or strongly for HoxD9, and more than 50% of neoplastic cells stained lightly or strongly for Pbx1. CONCLUSION: Our data suggest that HoxD9 and Pbx1 are inappropriately expressed in most human esophageal squamous cell carcinoma. Understanding the role of Hox genes in esophageal epithelial cell carcinogenesis may not only augment early detection but also offer new avenues for treatment of this disease.
AIM: To evaluate the expression pattern of two novel oncofetal antigens, the HoxD9 and Pbx1 homeoproteins in esophageal squamous cell carcinomas (ESCCs) to determine what role they would play in the carcinogenesis of ESCC. METHODS: We obtained tissue samples of ESCC from 56 patients who underwent esophagectomy but not preoperative chemotherapy or radiotherapy. The diagnosis of ESCC was established and confirmed by staff pathologists. We used a highly sensitive, indirect, immunocytochemical method to detect HoxD9 and PbX1 proteins. We qualitatively and quantitatively evaluated cells that exhibited and staining using a light microscope. RESULTS: In all observed carcinoma tissue samples, more than 60% of neoplastic cells stained lightly or strongly for HoxD9, and more than 50% of neoplastic cells stained lightly or strongly for Pbx1. CONCLUSION: Our data suggest that HoxD9 and Pbx1 are inappropriately expressed in most humanesophageal squamous cell carcinoma. Understanding the role of Hox genes in esophageal epithelial cell carcinogenesis may not only augment early detection but also offer new avenues for treatment of this disease.
Authors: Chaya Levovitz; Dan Chen; Emma Ivansson; Ulf Gyllensten; John P Finnigan; Sara Alshawish; Weijia Zhang; Eric E Schadt; Marshal R Posner; Eric M Genden; Paolo Boffetta; Andrew G Sikora Journal: Cancer Res Date: 2014-10-01 Impact factor: 12.701