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Title:   Author  item
                                            LEE, SUNG HYEN - US Department Of Agriculture (USDA)item
                                            Lillehoj, Hyunitem
                                            JEONG, MISUN - US Department Of Agriculture (USDA)item
                                            SULLIVAN, YVONNE - Kingfisher Biotech, Inc
  Submitted to: American Association of Immunologists Proceedings
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 3/1/2014
                                    Publication  Date: N/A
                                    Citation: N/AInterpretive Summary:
                                Technical Abstract: Tumor necrosis factor-like ligand 1A (TL1A) is a type II transmembrane protein predominantly expressed by endothelial cells that promotes the expansion of activated T cells and regulatory T cells, modulates inflammation, and regulates the production of a wide variety of T cell cytokines. However, there have not been any mAbs which specifically detect chTL1A and define its biochemical and immunological properties. So in this study, two mouse monoclonal antibodies (mAbs) that specifically detect chicken TL1A (chTL1A), were developed and characterized. Both mAbs identified a 32 kDa E. coli-derived, poly-histidine-tagged fusion protein by Western blot analysis. The mAbs identified TL1A-secreting cells in the chicken thymus, cecal tonsil, and bursa of Fabricius by immunocytochemistry, and were used to measure serum TL1A levels in normal and necrotic enteritis (NE)-afflicted chickens by antigen capture ELISA. These mAbs inhibited chTL1A-induced spleen lymphocyte proliferation, nitric oxide production by chicken macrophage cells (HD11), and blocked the cytotoxic effect of chTL1A against lymphoblastoid chicken B tumor cells (LSCC-RP9). These new mAbs that detect chTL1A will be important immune reagents for basic and applied research in poultry immunology.


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