TIMP-1 mediates TGF-beta-dependent crosstalk between hepatic stellate and cancer cells via FAK signaling
- Authors
- Park, Sang-A; Kim, Min-Jin; Park, So-Yeon; Kim, Jung-Shin; Lim, Woosung; Nam, Jeong-Seok; Sheen, Yhun Yhong
- Issue Date
- 9-Nov-2015
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- SCIENTIFIC REPORTS, v.5
- Journal Title
- SCIENTIFIC REPORTS
- Volume
- 5
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/9913
- DOI
- 10.1038/srep16492
- ISSN
- 2045-2322
- Abstract
- Transforming growth factor-beta (TGF-beta) signaling plays a key role in progression and metastasis of HCC. This study was undertaken to gain the proof of concept of a small-molecule inhibitor of TGF-beta type I receptor kinase, EW-7197 as a potent anti-cancer therapy for HCC. We identified tissue inhibitors of metalloproteinases-1 (TIMP-1) as one of the secreted proteins of hepatic stellate cells (HSCs) and a key mediator of TGF-beta-mediated crosstalk between HSCs and HCC cells. TGF-beta signaling led to increased expression of TIMP-1, which activates focal adhesion kinase (FAK) signaling via its interaction with CD63. Inhibition of TGF-beta signaling using EW-7197 significantly attenuated the progression and intrahepatic metastasis of HCC in an SK-HEP1-Luc orthotopic-xenograft mouse model. In addition, EW-7197 inhibited TGF-beta-stimulated TIMP-1 secretion by HSCs as well as the TIMP-1-induced proliferation, motility, and survival of HCC cells. Further, EW-7197 interrupted TGF-beta-mediated epithelial-to-mesenchymal transition and Akt signaling, leading to significant reductions in the motility and anchorage-independent growth of HCC cells. In conclusion, we found that TIMP-1 mediates TGF-beta-regulated crosstalk between HSCs and HCC cells via FAK signaling. In addition, EW-7197 demonstrates potent in vivo anti-cancer therapeutic activity and may be a potential new anticancer drug of choice to treat patients with liver cancer.
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