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Analysis of ovine IL-1β production in vivo and in vitro by enzyme immunoassay and immunohistochemistry
A monoclonal antibody (mAb) specific for ovine IL-1β was produced and, in conjunction with a polyclonal rabbit antiserum, used to develop a sensitive enzyme immunoassay (EIA) for ovine interleukin 1β (IL-1β). The mAb neutralised the activity of recombinant ovine IL-1β (rOvIL-1β) and native OvIL-1 in...
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Published in: | Veterinary immunology and immunopathology 1997-07, Vol.57 (3), p.267-278 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | A monoclonal antibody (mAb) specific for ovine IL-1β was produced and, in conjunction with a polyclonal rabbit antiserum, used to develop a sensitive enzyme immunoassay (EIA) for ovine interleukin 1β (IL-1β). The mAb neutralised the activity of recombinant ovine IL-1β (rOvIL-1β) and native OvIL-1 in an ovine thymocyte proliferation assay. However, it did not neutralise the biological activity of rOvIL-1β in the murine
NOB1
CTLL
assay. The mAb did not react with rOvIL-1α, IL-2, IL-4, IL-8, tumor necrosis factor-α, gamma-interferon or recombinant human IL-1β in indirect EIA. Immunohistological staining of activated alveolar macrophages and frozen lymph node sections demonstrated that the mAb detected IL-1β secreted by ovine macrophages (CD11c-positive). The EIA was highly sensitive, detecting less than 50 pg ml
−1 of rOvIL-1β and low levels of native IL-1β in supernatants from lipopolysaccharide-stimulated macrophages. The EIA did not detect heat-inactivated IL-1β. |
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ISSN: | 0165-2427 1873-2534 |
DOI: | 10.1016/S0165-2427(96)05754-6 |