title: Antibody microarray analysis of inflammatory mediator release by human leukemia T-cells and human non small cell lung cancer cells.
abstract: Cytokines and chemokines are responsible for regulating inflammation and the immune response. Cytokine and chemokine release is typically measured by quantitative enzyme-linked immunosorbant assay (ELISA) or Western blot analysis. To expedite the analysis of samples for multiple cytokines/chemokines, we have developed slide-based Thermo Scientific ExcelArray Antibody Sandwich Microarrays. Each slide consists of 16 subarrays (wells), each printed with 12 specific antibodies in triplicate and positive and negative control elements. This 16-well format allows for the analysis of 10 test samples using a six-point standard curve. The array architecture is based on the "sandwich" ELISA, in which an analyte protein is sandwiched between an immobilized capture antibody and a biotinylated detection antibody, using streptavidin-linked Thermo Scientific DyLight 649 Dye for quantitation. The observed sensitivity of this assay was <10 pg/mL. In our experiments, the Jurkat cell line was used as a model for human T-cell leukemia, and the A549 cell line was used as a model for human non-small cell lung cancer. To evoke a cytokine/chemokine response, cells were stimulated with tumor necrosis factor alpha (TNFalpha), phorbol-12-myristate-13-acetate (PMA, TPA), and phytohemagglutinin (PHA). Cell supernatants derived from both untreated and stimulated cells were analyzed on four different arrays (Inflammation I, Inflammation II, Angiogenesis, and Chemotaxis), enabling the quantitation of 41 unique analytes. Stimulated cells showed an increase in the expression level of many of the test analytes, including IL-8, TNF-alpha, and MIP-1alpha, compared to the non-treated controls. Our experiments clearly demonstrate the utility of antibody microarray analysis of cell-culture supernatants for the profiling of cellular inflammatory mediator release.
authors.affiliation: Thermo Fisher Scientific, 3747 N. Meridian Road, Rockford, IL 61105, USA.
authors.forename: Bradley H
authors.initials: BH
authors.lastname: Garcia
authors.forename: Aubrey
authors.initials: A
authors.lastname: Hargrave
authors.forename: Aric
authors.initials: A
authors.lastname: Morgan
authors.forename: Greg
authors.initials: G
authors.lastname: Kilmer
authors.forename: Eric
authors.initials: E
authors.lastname: Hommema
authors.forename: Janaki
authors.initials: J
authors.lastname: Nahrahari
authors.forename: Brian
authors.initials: B
authors.lastname: Webb
authors.forename: Rick
authors.initials: R
authors.lastname: Wiese
mesh_terms: D000906:Antibodies / Q000276:immunology*; D002289:Carcinoma, Non-Small-Cell Lung / Q000378:metabolism*; D002460:Cell Line; D003429:Cross Reactions; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D018836:Inflammation Mediators / Q000378:metabolism*; D015458:Leukemia, T-Cell / Q000378:metabolism*; D008175:Lung Neoplasms / Q000378:metabolism*; D010835:Phytohemagglutinins / Q000494:pharmacology; D012680:Sensitivity and Specificity; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology
chemical_list: D000906:Antibodies; D018836:Inflammation Mediators; D010835:Phytohemagglutinins; D014409:Tumor Necrosis Factor-alpha; D013755:Tetradecanoylphorbol Acetate