TRAP1 Shows Clinical Significance and Promotes Cellular Migration and Invasion through STAT3/MMP2 Pathway in Human Esophageal Squamous Cell Cancer

Yunwei Ou; Lingyan Liu; Liyan Xue; Wei Zhou; Zitong Zhao; Bainan Xu; Yongmei Song; Qimin Zhan

doi:10.1016/j.jgg.2014.08.004

Volume 41 Issue 10

Oct. 2014

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TRAP1 Shows Clinical Significance and Promotes Cellular Migration and Invasion through STAT3/MMP2 Pathway in Human Esophageal Squamous Cell Cancer

doi: 10.1016/j.jgg.2014.08.004

a
Department of Neurosurgery, Chinese PLA General Hospital, Beijing 100853, China
b
State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

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Corresponding author: E-mail address: xbn301sjwk@126.com (Bainan Xu); E-mail address: symlh2006@163.com (Yongmei Song)
Received Date: 2014-05-30
Accepted Date: 2014-08-08
Rev Recd Date: 2014-07-31

Available Online: 2014-09-03

Publish Date: 2014-10-20

Abstract

Abstract

Tumor necrosis factor receptor-associated protein 1 (TRAP1), an important member of mitochondrial heat shock protein 90 family, is involved in multiple biological processes in several types of tumors. However, its pathological role in esophageal squamous cell cancer (ESCC) remains unknown. Herein, we demonstrated the clinical value of TRAP1, and its role in apoptosis and motility in ESCC. The clinical potential of TRAP1 was investigated through immunohistochemical analysis in 328 ESCC samples, which revealed that strong TRAP1 expression was associated with increased risk of lymph node metastasis, while high TRAP1 expression correlated with poor prognosis. Expression of TRAP1 was found to be an independent prognostic factor for patients with ESCC. Additionally, the upregulation of TRAP1 antagonized cisplatin-induced apoptosis while its downregulation sensitized cells to cisplatin-induced apoptosis. As revealed by the transwell assay, TRAP1 overexpression promoted cellular migration and invasion as compared to the control groups. In contrast, silencing of endogenous TRAP1 expression attenuated the ability of migration and invasion. Finally, the molecular mechanism investigated in the present study demonstrated that TRAP1-mediated migration and invasion occurred through STAT3/MMP2 signaling pathway. In conclusion, TRAP1 may be considered as a molecular predictive marker for prognosis and a novel molecular candidate for therapeutic target in ESCC.
- TRAP1,
- Clinical,
- Migration,
- Invasion,
- ESCC

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References(21)

References

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