Serum amyloid A: an acute-phase protein involved in tumour pathogenesis.
The synthesis of acute-phase protein serum amyloid A (SAA) is largely regulated by inflammation- associated cytokines and a high concentration of circulating SAA may represent an ideal marker for acute and chronic inflammatory diseases. However, SAA is also synthesized in extrahepatic tissues, e.g. human carcinoma metastases and cancer cell lines. An increasing body of in vitro data supports the concept of involvement of SAA in carcinogenesis and neoplastic diseases. Accumulating evidence suggests that SAA might be included in a group of biomarkers to detect a pattern of physiological events that reflect the growth of malignancy and host response. This review is meant to provide a broad overview of the many ways that SAA could contribute to tumour development, and accelerate tumour progression and metastasis, and to gain a better understanding of this acute-phase reactant as a possible link between chronic inflammation and neoplasia.
Malle
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Center of Molecular Medicine, Institute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, A-8010 Graz, Austria. ernst.malle@meduni-graz.at
Sodin-Semrl
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Kovacevic
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A
D064286:ATP Binding Cassette Transporter 1; D018528:ATP-Binding Cassette Transporters / Q000378:metabolism; D000818:Animals; D015415:Biomarkers; D014408:Biomarkers, Tumor / Q000097:blood* / Q000502:physiology; D045744:Cell Line, Tumor; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D051379:Mice; D009369:Neoplasms / Q000097:blood / Q000209:etiology / Q000378:metabolism*; D000067759:Receptor for Advanced Glycation End Products; D044042:Receptors, Formyl Peptide / Q000378:metabolism; D011971:Receptors, Immunologic / Q000378:metabolism; D044067:Receptors, Lipoxin / Q000378:metabolism; D051122:Scavenger Receptors, Class B / Q000378:metabolism; D000685:Serum Amyloid A Protein / Q000235:genetics / Q000378:metabolism / Q000502:physiology*
D064286:ATP Binding Cassette Transporter 1; D018528:ATP-Binding Cassette Transporters; D015415:Biomarkers; D014408:Biomarkers, Tumor; C105101:FPR2 protein, human; D000067759:Receptor for Advanced Glycation End Products; D044042:Receptors, Formyl Peptide; D011971:Receptors, Immunologic; D044067:Receptors, Lipoxin; C495124:SCARB1 protein, human; D051122:Scavenger Receptors, Class B; D000685:Serum Amyloid A Protein