Moving Aggressively: S100A4 and Tumor Invasion
2011
Tumor cell invasion and metastasis are complex multi-step cellular processes that involve the ability of malignant cells to escape the primary tumor, migrate to distant sites within the body and establish secondary tumors. S100A4, a member of the S100 family of Ca2+-binding proteins, is a prognostic marker in a number of human cancers and has a direct role in promoting metastatic disease. S100A4’s metastasis promoting properties are attributed to diverse biological functions including the regulation of apoptosis, cell motility, invasion and angiogenesis. In this chapter we discuss the contribution of tumor and stromal-derived S100A4 in supporting metastatic dissemination and examine the biochemical properties of S100A4 and the S100A4/target protein interactions that may contribute to its function as a metastasis factor.
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