Isoprenaline Induces Periostin Expression in Gastric Cancer.
10.3349/ymj.2016.57.3.557
- Author:
Guo Xiao LIU
1
;
Hong Qing XI
;
Xiao Yan SUN
;
Zhi Jun GENG
;
Shao Wei YANG
;
Yan Jie LU
;
Bo WEI
;
Lin CHEN
Author Information
1. Department of General Surgery, Chinese PLA General Hospital, Beijing, China. weibo@vip.163.com, 13381326128@163.com
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
Gastric cancer;
stress;
metastasis;
periostin;
extracellular matrix;
nich
- MeSH:
Adenocarcinoma/*metabolism/pathology;
Adrenergic beta-Agonists/pharmacology;
Aged;
Blotting, Western;
Cell Adhesion Molecules/drug effects/*metabolism;
Cell Line, Tumor;
Fibroblasts/*metabolism;
Gene Expression Regulation, Neoplastic/*drug effects;
Humans;
Isoproterenol/*pharmacology;
Male;
Neoplasm Staging;
RNA, Messenger/genetics/metabolism;
Real-Time Polymerase Chain Reaction;
Signal Transduction;
Stomach/metabolism/pathology;
Stomach Neoplasms/*metabolism/pathology;
Up-Regulation
- From:Yonsei Medical Journal
2016;57(3):557-564
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: Periostin mediates critical steps in gastric cancer and is involved in various signaling pathways. However, the roles of periostin in promoting gastric cancer metastasis are not clear. The aim of this study was to investigate the relevance between periostin expression and gastric cancer progression and the role of stress-related hormones in the regulation of cancer development and progression. MATERIALS AND METHODS: Normal, cancerous and metastatic gastric tissues were collected from patients diagnosed with advanced gastric cancer. The in vivo expression of periostin was evaluated by in situ hybridization and immunofluorescent staining. Meanwhile, human gastric adenocarcinoma cell lines MKN-45 and BGC-803 were used to detect the in vitro expression of periostin by using quantitative real-time polymerase chain reaction (PCR) and western blotting. RESULTS: Periostin is expressed in the stroma of the primary gastric tumors and metastases, but not in normal gastric tissue. In addition, we observed that periostin is located mainly in pericryptal fibroblasts, but not in the tumor cells, and strongly correlated to the expression of α-smooth muscle actin (SMA). Furthermore, the distribution patterns of periostin were broader as the clinical staging of tumors progressed. We also identified a role of stress-related signaling in promoting cancer development and progression, and found that isoprenaline upregulated expression levels of periostin in gastric cancer cells. CONCLUSION: These findings suggest that the distribution pattern of periostin was broader as the clinical staging of the tumor progressed and found that isoprenaline upregulated expression levels of periostin in gastric cancer cells.
