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- Title
Reconstitution of secreted frizzled-related protein 1 suppresses tumor growth and lung metastasis in an orthotopic model of hepatocellular carcinoma.
- Authors
Gui-Xing Jiang; Wei Liu; Yun-Fu Cui; Xiang-Yu Zhong; Sheng Tai; Zhi-Dong Wang; Yu-Guang Shi; Chun-Long Li; Shi-Yong Zhao; Jiang, Gui-Xing; Liu, Wei; Cui, Yun-Fu; Zhong, Xiang-Yu; Tai, Sheng; Wang, Zhi-Dong; Shi, Yu-Guang; Li, Chun-Long; Zhao, Shi-Yong
- Abstract
<bold>Background: </bold>Secreted Frizzled-related protein 1 (sFRP1) is frequently silenced in many types of cancer, including hepatocellular carcinoma (HCC), leading to aberrant activation of Wnt signaling and thereby facilitating tumor development. In this study, we aimed to investigate whether restoration of sFRP1 affected HCC growth and metastasis.<bold>Methods: </bold>We generated stable cell lines overexpressing sFRP1 in MHCC97-H cells, which naturally do not express detectable sFRP1 messenger RNA (mRNA) and have high metastatic properties. The effects of sFRP1 reexpression on tumor growth and metastasis were assessed in vitro and in vivo. It was also tested whether β-catenin signaling mediated the function of sFRP1 in tumor progression.<bold>Results: </bold>Overexpression of sFRP1 substantially diminished the proliferation and invasion potentials of MHCC97-H cells. Furthermore, sFRP1 expression significantly inhibited MHCC97-H xenograft growth and metastasis in vivo, which was accompanied by decreased angiogenesis and increased tumor cell apoptosis. Moreover, sFRP1 overexpression caused less expression of β-catenin and its downstream effector genes cyclin D1 and matrix metalloproteinase (MMP)-2.<bold>Conclusion: </bold>Together these findings demonstrate that sFRP1 reconstitution suppresses tumor growth, angiogenesis, and metastasis in MHCC97-H xenografts, which may be associated with inactivation of β-catenin signaling, thus providing a possible therapeutic strategy against HCC.
- Subjects
LIVER cancer; METASTASIS; TUMOR growth; ASTACINS; APOPTOSIS; MESSENGER RNA; CELL lines; PREVENTION; ANIMALS; BIOLOGICAL models; CANCER invasiveness; CELL division; CELLULAR signal transduction; CYTOSKELETAL proteins; GENES; GLYCOPROTEINS; HEPATOCELLULAR carcinoma; LIVER tumors; LUNG tumors; MICE; PATHOLOGIC neovascularization; METABOLISM
- Publication
Digestive Diseases & Sciences, 2010, Vol 55, Issue 10, p2838
- ISSN
0163-2116
- Publication type
journal article
- DOI
10.1007/s10620-009-1099-3