S100 Proteins as Diagnostic and Prognostic Markers in Colorectal and Hepatocellular Carcinoma
Hepatitis Monthly: October 12, 2012, 12 (10); 7240
October 12, 2012
Article Type: Review Article
June 2, 2012
July 16, 2012
P , Breitrck
C . S100 Proteins as Diagnostic and Prognostic Markers in Colorectal and Hepatocellular Carcinoma,
Clinical and experimental studies have suggested a link between S100 gene expression and neoplastic disorders, however, the molecular mechanisms of this association are not well understood. The aim of this review was to conduct a comprehensive literature search in order to understand the possible underlying molecular mechanisms of this association. We also discuss their application as diagnostic and prognostic markers in colorectal and hepatocellular carcinoma.
S100 genes display a complex expression pattern in colorectal and hepatocel lular carcinoma. They are expressed in tumor and/or tumor stroma cells, and they exert both pro- and antitumorigenic actions. In view of this complexity, it becomes clear that S100 proteins might act as both friend and foe. The biological role of the S100 genes is predicted to depend on the relative contributions of the different cell types at specific stages of tumor progression.
Further research is required in order to uncover the functional role of S100 genes in tumorigenesis. Answers to this issue are needed before we can more fully understand the clinical relevance of S100 protein expression within epithelial tumors, with regard to their potential applicability as biomarkers for diagnosis and therapy decisions.
Biological Markers; Cell Transformation, Neoplastic; Matrix Metalloproteinases
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