Tumour necrosis factor, IL-1 and IL-6 in bronchoalveolar washings and theirin vitroproduction duringNippostrongylus brasiliensisinfection
Open Access
- 1 May 1992
- journal article
- Published by Oxford University Press (OUP) in Clinical and Experimental Immunology
- Vol. 88 (2), 264-268
- https://doi.org/10.1111/j.1365-2249.1992.tb03071.x
Abstract
SUMMARY: Bronchoalveolar washings (BAW) were obtained from rats primarily infected with N. brasiliensis during the early infection stage that coincides with the lung passage of the parasite and the recruitment of inflammatory cells. BAW were tested for IL-1, IL-6 and tumour necrosis factor (TNF) activities. We found that IL-1 production occurred only on day 1 post infection and ceased thereafter. IL-6 activity was present as from day 1 with a maximum on day 3 post infection and then returned to its normal levels on day 5 post infection. TNF activity was not recovered in BAW at any time of the early infection. Results obtained from the in vitro culture of BAW-adhcrent cells demonstrated that on day I post infection IL-1, but also large amounts of TNF were produced spontaneously, whereas IL-6 was continuously released. Bacterial lipopolysaccharide (LPS) stimulation of the cell culture resulted in an amplification of the cytokine production. Our results suggest that pulmonary cytokincs detected in BAW were at least in part produced by alveolar macrophages. Furthermore, the kinetics of IL-1, TNF and IL-6 production show that these monokines are induced at different times during the course of infection, suggesting that cytokine production may follow different regulation patterns during the early phase of N. bransiliensis infection.Keywords
This publication has 22 references indexed in Scilit:
- The involvement of TNF, IL-1 and IL-6 in the immune response to protozoan parasitesImmunology Today, 1991
- Interleukin 1, interleukin 6 and tumor necrosis factor in infection, inflammation and immunityImmunology Letters, 1988
- Broncho‐alveolar leucocyte responses during primary and secondary Nippostrongylus brasiliensis infection in the ratParasite Immunology, 1984
- Rapid colorimetric assay for cellular growth and survival: Application to proliferation and cytotoxicity assaysJournal of Immunological Methods, 1983
- A photometric and plaque assay for macrophage mediated tumor cell cytotoxicityJournal of Immunological Methods, 1983
- A study of the pathology of the lungs of rats after subcutaneous or intravenous injection of active or inactive larvae of Nippostrongylus brasiliensisJournal of Comparative Pathology, 1980
- Studies on the purification and structure-function relationships of murine lymphocyte activating factor (interleukin 1)Molecular Immunology, 1980
- Nippostrongylus brasiliensis: Mast cells and histamine levels in tissues of infected and normal ratsExperimental Parasitology, 1979
- The location of parasites within their hosts: The passage of Nippostrongylus brasiliensis through the lungs of the laboratory ratInternational Journal for Parasitology, 1978
- Elevation of total serum IgE in rats following helminth parasite infectionNature, 1974