期刊
CYTOMETRY PART B-CLINICAL CYTOMETRY
卷 86, 期 6, 页码 426-435出版社
WILEY-BLACKWELL
DOI: 10.1002/cyto.b.21147
关键词
multiplex microbead; luminex; cytokines; chemokines; anticoagulant; normal range
资金
- Department of Pathology and Laboratory Medicine's Proteomics and Informatics Initiative at UC Davis Medical Center
- Department of Pathology Informatics, Initiatives and NIH [P20 MD 002732, P20 CA 138025]
- NIH [R01 HL083276]
- Mentored Clinical Research Training Program, UC Davis CTSC [UL1 TR000002]
Multiplex microbead immunoassay (MMIA) is a powerful technology for a wide range of biomedical and clinical applications. It is important to study the normal concentration ranges of immunomodulators under different sample preparation conditions and age groups of subjects in order to more precisely determine their reference values for use in assessing alterations of their levels in disease. The aim of this study was to determine the plasma concentrations of immunomodulators (cytokines, chemokines, and growth factors) in the peripheral blood from healthy subjects by the use of a large multiplex panel, and to determine the effects of different anticoagulants, age, and gender on the immunomodulator levels. In addition, the assay precision for these biomarker analytes was determined. Plasma samples from 107 healthy subjects, aged 18 to 85 years, were collected in three different anticoagulants (sodium citrate, EDTA, Heparin); corresponding serum samples were also obtained. Multiplex microbead immunoassays were performed for measuring a total of 23 analytes including chemokines, cytokines, and growth factors (IL-1, IL-1ra, IL-2, IL-6, IL-7, IL-8, IL-12 p70, IL-17, IFN-, IP-10, MCP-1, PDGF-BB, RANTES, TNF-, IL-1a, IL-16, HGF, MIG, TNF-, PDGF-ABBB, EGF, Flt-3 Ligand, VEGF). For these analytes, our results showed that the anticoagulant affected the concentration measurements and the coefficients of variation. However, the relative levels of the analytes (profiles) of samples collected in a particular anticoagulant are consistent. The analytes IL-1, IL-7, Flt-3 Ligand, and IL-12p70 show the largest variation (up to fourfold) between the age groups. In addition, no statistically significant differences in the level of the analytes were found between the sexes. (c) 2013 International Clinical Cytometry Society
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