Jun Zhan1,2, Peng Wang1,2, Miaomiao Niu1,2, Yunling Wang1,2, Xiang Zhu1,3, Yongqing Guo4, Hongquan Zhang1,2. 1. Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, China. 2. Department of Anatomy, Histology and Embryology, Laboratory of Molecular Cell Biology and Tumor Biology, Beijing, China. 3. Department of Pathology, Peking University Health Science Center, Beijing, China. 4. Department of Thoracic Surgery, Sino-Japan Friendship Hospital, Beijing, China.
Abstract
AIMS: HoxB9, as a Hox family member, is known to play important roles in embryonic development. Recent studies showed that HoxB9 is engaged in cancer progression. However, the role of Hoxb9 in lung adenocarcinoma is unknown. The purpose of this study is to investigate the expression and prognostic value of HoxB9 in patients with lung adenocarcinoma. METHODS AND RESULTS: The localization and expression of HoxB9 in lung adenocarcinoma were examined by immunohistochemistry. The correlation between HoxB9 expression levels with patient survival was assessed by Kaplan-Meier analysis. The epithelial-mesenchymal transition (EMT) markers and migratory ability were evaluated in HoxB9 up- and down-regulated H1299 lung adenocarcinoma cells. HoxB9 was found to be localized predominantly in the cell nuclei and expressed in 21.3% of lung adenocarcinomas. A significant increase in HoxB9 intensity in the high stage of lung adenocarcinoma was observed (P < 0.01). Increased expression of HoxB9 was related to T classification, more lymph node metastasis and a shorter patient overall survival (P < 0.05). However, the expression level of HoxB9 was not correlated with age and gender. Functionally, HoxB9 up-regulated EMT-related molecules and promoted cell migration in H1299 cells. CONCLUSION: High expression of HoxB9 is a prognostic marker for lung adenocarcinoma patients.
AIMS: HoxB9, as a Hox family member, is known to play important roles in embryonic development. Recent studies showed that HoxB9 is engaged in cancer progression. However, the role of Hoxb9 in lung adenocarcinoma is unknown. The purpose of this study is to investigate the expression and prognostic value of HoxB9 in patients with lung adenocarcinoma. METHODS AND RESULTS: The localization and expression of HoxB9 in lung adenocarcinoma were examined by immunohistochemistry. The correlation between HoxB9 expression levels with patient survival was assessed by Kaplan-Meier analysis. The epithelial-mesenchymal transition (EMT) markers and migratory ability were evaluated in HoxB9 up- and down-regulated H1299 lung adenocarcinoma cells. HoxB9 was found to be localized predominantly in the cell nuclei and expressed in 21.3% of lung adenocarcinomas. A significant increase in HoxB9 intensity in the high stage of lung adenocarcinoma was observed (P < 0.01). Increased expression of HoxB9 was related to T classification, more lymph node metastasis and a shorter patient overall survival (P < 0.05). However, the expression level of HoxB9 was not correlated with age and gender. Functionally, HoxB9 up-regulated EMT-related molecules and promoted cell migration in H1299 cells. CONCLUSION: High expression of HoxB9 is a prognostic marker for lung adenocarcinomapatients.
Authors: Paromita Deb; Arunoday Bhan; Imran Hussain; Khairul I Ansari; Samara A Bobzean; Tej K Pandita; Linda I Perrotti; Subhrangsu S Mandal Journal: Gene Date: 2016-05-13 Impact factor: 3.688
Authors: Sherry Y Wu; Rajesha Rupaimoole; Fangrong Shen; Sunila Pradeep; Chad V Pecot; Cristina Ivan; Archana S Nagaraja; Kshipra M Gharpure; Elizabeth Pham; Hiroto Hatakeyama; Michael H McGuire; Monika Haemmerle; Viviana Vidal-Anaya; Courtney Olsen; Cristian Rodriguez-Aguayo; Justyna Filant; Ehsan A Ehsanipour; Shelley M Herbrich; Sourindra N Maiti; Li Huang; Ji Hoon Kim; Xinna Zhang; Hee-Dong Han; Guillermo N Armaiz-Pena; Elena G Seviour; Sue Tucker; Min Zhang; Da Yang; Laurence J N Cooper; Rouba Ali-Fehmi; Menashe Bar-Eli; Ju-Seog Lee; Prahlad T Ram; Keith A Baggerly; Gabriel Lopez-Berestein; Mien-Chie Hung; Anil K Sood Journal: Nat Commun Date: 2016-04-04 Impact factor: 14.919