期刊
CLINICA CHIMICA ACTA
卷 446, 期 -, 页码 105-110出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cca.2015.04.010
关键词
Diagnosis; Prognosis; Metabolic syndrome; Tumor marker; Neuroprotection; Pregnancy
资金
- Austrian Research Fund [P19969-B11]
- Austrian National Bank [12529]
- European Union FP7-PEOPLE-IIF (SAXCESS)
- Austrian Science Fund (FWF) [P19969] Funding Source: Austrian Science Fund (FWF)
The human glycoprotein afamin was discovered as the fourth member of the albumin gene family. Despite intense research over the last 20 years, our knowledge of afamin's physiological or pathophysiological functions is still very limited. Circulating afamin is primarily of hepatic origin and abundant concentrations are found in plasma, cerebrospinal, ovarian follicular and seminal fluids. In vitro binding studies revealed specific binding properties for vitamin E. A previously performed analytical characterization and clinical evaluation study of an enzyme-linked immunosorbent assay for quantitative measurement of afamin in human plasma demonstrated that the afamin assay meets the quality specifications for laboratory medicine. Comparative proteomics has identified afamin as a potential biomarker for ovarian cancer and these findings were confirmed by quantitative immunoassay of afamin and validated in independent cohorts of patients with ovarian cancer. Afamin has also been investigated in other types of carcinoma. Most of these studies await further evaluation with validated quantitative afamin assays and require validation in larger patient cohorts. Transgenic mice overexpressing the human afamin gene revealed increased body weight and increased blood concentrations of lipids and glucose. These transgenic mouse data were in line with three large human population-based studies showing that afamin is strongly associated with the prevalence and development of the metabolic syndrome. This review summarizes and discusses the molecular, biochemical and analytical characterization of afamin as well as possible clinical applications of afamin measurement. (C) 2015 The Authors. Published by Elsevier B.V.
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