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01.12.2018 | Research | Ausgabe 1/2018 Open Access

Molecular Cancer 1/2018

Met is involved in TIGAR-regulated metastasis of non-small-cell lung cancer

Molecular Cancer > Ausgabe 1/2018
Mengqin Shen, Xiaoping Zhao, Li Zhao, Liang Shi, Shuxian An, Gang Huang, Jianjun Liu
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Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1186/​s12943-018-0839-4) contains supplementary material, which is available to authorized users.


TIGAR is a p53 target gene that is known to protect cells from ROS-induced apoptosis by promoting the pentose phosphate pathway. The role of TIGAR in tumor cell invasion and metastasis remains elusive. Here we found that downregulation of TIGAR reduced the invasion and metastasis of NSCLC cells in vitro and in vivo. Immunohistochemical analysis of 72 NSCLC patients showed that TIGAR and Met protein expression was positively correlated with late stages of lung cancer. Besides, patients with high co-expression of TIGAR and Met presented a significantly worse survival. In addition, we found that Met signaling pathway is involved in TIGAR-induced invasion and metastasis. Our study indicates that TIGAR/Met pathway may be a novel target for NSCLC therapy. It is necessary to evaluate the expression of TIGAR before Met inhibitors are used for NSCLC treatment.
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