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IGFBP-1 in cancer: expression, molecular mechanisms, and potential clinical implications
Yi-Wei Lin1,2, Xue-Fen Weng1,2, Bin-Liang Huang1,2
1Department of Clinical Laboratory Medicine, The Cancer Hospital of Shantou University Medical College Shantou, Guangdong, People's Republic of China.
Abstract:
Insulin-like growth factor binding protein-1 (IGFBP-1) belongs to the insulin-like growth factor (IGF) system, which plays an indispensable role in normal growth and development, and in the pathophysiology of various tumors. IGFBP-1 has been shown to be associated with the risk of various tumors, and has a vital function in regulating tumor behaviors such as proliferation, migration, invasion and adhesion through different molecular mechanisms. The biological actions of IGFBP-1 in cancer are found to be related to its phosphorylation state, and the IGF-dependent and -independent mechanisms. In this review, we provided an overview of IGFBP-1 in normal physiology, and its aberrantly expression and the underlying molecular mechanisms in a range of common tumors, as well as discussed the potential clinical implications of IGFBP-1 as diagnostic or prognostic biomarkers in cancer.
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