Temporal reliability of cytokines and growth factors in EDTA plasma

被引：33

作者：

Clendenen T.V. ^{[1
]}

Arslan A.A. ^{[1
,2
,3
]}

Lokshin A.E. ^{[4
,5
,6
]}

Idahl A. ^{[7
]}

Hallmans G. ^{[8
]}

Koenig K.L. ^{[1
]}

Marrangoni A.M. ^{[4
]}

Nolen B.M. ^{[4
]}

Ohlson N. ^{[9
]}

Zeleniuch-Jacquotte A. ^{[1
,2
]}

Lundin E. ^{[9
]}

机构：

[1] Department of Environmental Medicine, New York University Langone Medical Center, New York, NY

[2] New York University Cancer Institute, New York University Langone Medical Center, NY

[3] Department of Obstetrics and Gynecology, New York University Langone Medical Center, New York, NY

[4] Department of Medicine, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh

[5] Department of Pathology, University of Pittsburgh, Pittsburgh

[6] Department of Ob/Gyn Reproductive Sciences, University of Pittsburgh, Pittsburgh

[7] Department of Clinical Sciences, Obstetrics and Gynecology, Umeä University, Umeä

[8] Department of Public Health and Clinical Medicine/Nutritional Research, Umeä University, Umeä

[9] Department of Medical Biosciences, Pathology, Umeä University, Umeä

来源：

BMC Research Notes | / 3卷 / 1期

关键词：

Epidermal Growth Factor Receptor; Human Epidermal Growth Factor Receptor; Intraclass Correlation Coefficient; Hepatocyte Growth Factor; Marker Assay;

D O I：

10.1186/1756-0500-3-302

中图分类号：

学科分类号：

摘要：

Background. Cytokines are involved in the development of chronic diseases, including cancer. It is important to evaluate the temporal reproducibility of cytokines in plasma prior to conducting epidemiologic studies utilizing these markers. Findings. We assessed the temporal reliability of CRP, 22 cytokines and their soluble receptors (IL-1α, ILβ-1, IL-1RA, IL-2, sIL-2R, IL-4, IL-5, IL-6, sIL-6R, IL-7, IL-8, IL-10, IL-12p40, IL-12p70, IL-13, IL-15, IL-17, TNFα, sTNF-R1, sTNF-R2, IFNα, IFNγ) and eight growth factors (GM-CSF, EGF, bFGF, G-CSF, HGF, VEGF, EGFR, ErbB2) in repeated EDTA plasma samples collected an average of two years apart from 18 healthy women (age range: 42-62) enrolled in a prospective cohort study. We also estimated the correlation between serum and plasma biomarker levels using 18 paired clinical samples from postmenopausal women (age range: 75-86). Twenty-six assays were able to detect their analytes in at least 70% of samples. Of those 26 assays, we observed moderate to high intra-class correlation coefficients (ICCs)(ranging from 0.53-0.89) for 22 assays, and low ICCs (0-0.47) for four assays. Serum and plasma levels were highly correlated (r > 0.6) for most markers, except for seven assays (r < 0.5). Conclusions. For 22 of the 31 biomarkers, a single plasma measurement is a reliable estimate of a woman's average level over a two-year period. © 2010 Clendenen et al; licensee BioMed Central Ltd.

引用

共 36 条

[31]

Elshal M.F., McCoy J.P., Multiplex bead array assays: Performance evaluation and comparison of sensitivity to ELISA, Methods, 38, pp. 317-323, (2006)

[32]

Lash G.E., Scaife P.J., Innes B.A., Otun H.A., Robson S.C., Searle R.F., Bulmer J.N., Comparison of three multiplex cytokine analysis systems: Luminex, SearchLight and FAST Quant, J Immunol Methods, 309, pp. 205-208, (2006)

[33]

Liu M.Y., Xydakis A.M., Hoogeveen R.C., Jones P.H., Smith E.O., Nelson K.W., Ballantyne C.M., Multiplexed analysis of biomarkers related to obesity and the metabolic syndrome in human plasma, using the Luminex-100 system, Clin Chem, 51, pp. 1102-1109, (2005)

[34]

Nayeri F., Brudin L., Nilsson I., Forsberg P., Sample handling and stability of hepatocyte growth factor in blood samples, Cytokine, 19, pp. 201-205, (2002)

[35]

Hartweg J., Gunter M., Perera R., Farmer A., Cull C., Schalkwijk C., Kok A., Twaalfhoven H., Holman R., Neil A., Stability of soluble adhesion molecules, selectins, and C-reactive protein at various temperatures: Implications for epidemiological and large-scale clinical studies, Clin Chem, 53, pp. 1858-1860, (2007)

[36]

Aziz N., Fahey J.L., Detels R., Butch A.W., Analytical performance of a highly sensitive C-reactive protein-based immunoassay and the effects of laboratory variables on levels of protein in blood, Clin Diagn Lab Immunol, 10, pp. 652-657, (2003)

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