Sandwich Elisa for Detection of Picogram Quantities of Interleukin-8
- 1 January 1991
- journal article
- research article
- Published by Taylor & Francis in Immunological Investigations
- Vol. 20 (1), 89-97
- https://doi.org/10.3109/08820139109054928
Abstract
A sensitive sandwich enzyme-linked immunosorbent assay (ELISA) was developed for interleukin-8 (IL-8), a neutrophil chemoattractant and activator. A polyclonal antibody to recombinant human IL-8 was raised in rabbits, and the IgG was isolated from the antisera using a protein A column. Native and biotinylated forms of this antibody served as the capture antibody and developing antibody for the ELISA, respectively, and avidin-conjugated horse radish peroxidase provided the means for enzymatic color development. The lower limit of sensitivity for the assay was found to be 84 ± 20 pg/ml IL-8 (mean ± SD for 10 determinations). An inter-assay variability of 15-29% and an intra-assay variability of 12% were observed. The assay was able to detect IL-8 when the samples were prepared in either normal saline, RPMI, or human plasma. The development of this rapid, sensitive assay should provide a means to more fully evaluate the role of this cytokine in diverse disease states.Keywords
This publication has 9 references indexed in Scilit:
- Secretion of Neutrophil Attractant/Activation Protein by Lipopolysaccharide-stimulated Lung Macrophages Determined by Both Enzyme-linked Immunosorbent Assay and N-Terminal Sequence AnalysisAmerican Review of Respiratory Disease, 1990
- Interleukin 8 and MCAF: novel inflammatory cytokines inducible by IL 1 and TNFCytokine, 1989
- Neutrophil-activating peptide-1/interleukin 8, a novel cytokine that activates neutrophils.JCI Insight, 1989
- Endothelial Cell Gene Expression of a Neutrophil Chemotactic Factor by TNF-α, LPS, and IL-1βScience, 1989
- Synthesis and biological characterization of monocyte‐derived neutrophil chemotactic factorFEBS Letters, 1988
- A Peptide from Alveolar Macrophages That Releases Neutrophil Enzymes into the Lungs in Patients with the Adult Respiratory Distress SyndromeAmerican Review of Respiratory Disease, 1988
- Silver Staining of Gels for Proteins or RNAPublished by Elsevier ,1986
- Reduction of the extent of ischemic myocardial injury by neutrophil depletion in the dog.Circulation, 1983
- Cleavage of Structural Proteins during the Assembly of the Head of Bacteriophage T4Nature, 1970