BACKGROUND: The efficacy by which passive antibodies can reach the lungs could be important for the outcome of immunotherapy of respiratory pulmonary infections. We examined how transmission to a number of mucosal sites is affected by the route of inoculation. METHODS: Transmission of newly raised IgA class Mabs against mycobacterial surface antigens to saliva, lung or vaginal lavage, bile and serum of BALB/c mice was compared with existing IgG Mabs. ELISA was used for testing body fluids obtained 1-24 h after intranasal or intravenous inoculation and 1-7 days following back-pack tumour growth of hybridomas. RESULTS: Intranasal inoculation resulted in a rapid rise and high levels of both IgA and IgG class Mabs in lung lavage. In contrast, following intravenous Mab injection or back-pack tumour growth of hybridoma cells, effective lung transmission was observed for the IgG1 and IgG2b MAbs, but not for the IgA Mabs. The secretory component was acquired by the transmitted IgA MAbs in the mucosal fluids, but not in the serum. Nevertheless, the time course of mucosal IgA antibody levels was similar to that of the tested IgG Mabs. Furthermore, the relative proportion of transmission to saliva and bile varied between individual Mabs indicating a role of tissue-specific, immunoglobulin class-unrelated mechanisms. CONCLUSIONS: Intranasal, rather than parenteral inoculation of mice is required for the efficient delivery of IgA antibodies against respiratory pulmonary pathogens. Interestingly, IgA-secretory component complexing of intranasally applied Mabs did not significantly influence their persistence in the lungs. Copyright 2000 S. Karger AG, Basel.
BACKGROUND: The efficacy by which passive antibodies can reach the lungs could be important for the outcome of immunotherapy of respiratory pulmonary infections. We examined how transmission to a number of mucosal sites is affected by the route of inoculation. METHODS: Transmission of newly raised IgA class Mabs against mycobacterial surface antigens to saliva, lung or vaginal lavage, bile and serum of BALB/c mice was compared with existing IgG Mabs. ELISA was used for testing body fluids obtained 1-24 h after intranasal or intravenous inoculation and 1-7 days following back-pack tumour growth of hybridomas. RESULTS: Intranasal inoculation resulted in a rapid rise and high levels of both IgA and IgG class Mabs in lung lavage. In contrast, following intravenous Mab injection or back-pack tumour growth of hybridoma cells, effective lung transmission was observed for the IgG1 and IgG2b MAbs, but not for the IgA Mabs. The secretory component was acquired by the transmitted IgA MAbs in the mucosal fluids, but not in the serum. Nevertheless, the time course of mucosal IgA antibody levels was similar to that of the tested IgG Mabs. Furthermore, the relative proportion of transmission to saliva and bile varied between individual Mabs indicating a role of tissue-specific, immunoglobulin class-unrelated mechanisms. CONCLUSIONS: Intranasal, rather than parenteral inoculation of mice is required for the efficient delivery of IgA antibodies against respiratory pulmonary pathogens. Interestingly, IgA-secretory component complexing of intranasally applied Mabs did not significantly influence their persistence in the lungs. Copyright 2000 S. Karger AG, Basel.
Authors: Ann Williams; Rajko Reljic; Irene Naylor; Simon O Clark; Gustavo Falero-Diaz; Mahavir Singh; Stephen Challacombe; Philip D Marsh; Juraj Ivanyi Journal: Immunology Date: 2004-03 Impact factor: 7.397
Authors: R Reljic; S O Clark; A Williams; G Falero-Diaz; M Singh; S Challacombe; P D Marsh; J Ivanyi Journal: Clin Exp Immunol Date: 2006-03 Impact factor: 4.330
Authors: Natalie Zimmermann; Verena Thormann; Bo Hu; Anne-Britta Köhler; Aki Imai-Matsushima; Camille Locht; Eusondia Arnett; Larry S Schlesinger; Thomas Zoller; Mariana Schürmann; Stefan He Kaufmann; Hedda Wardemann Journal: EMBO Mol Med Date: 2016-11-02 Impact factor: 12.137
Authors: Ilaria Pepponi; Elena Stylianou; Craig van Dolleweerd; Gil Reynolds Diogo; Matthew J Paul; Pascal M W Drake; Julian K-C Ma; Rajko Reljic Journal: PLoS One Date: 2013-04-23 Impact factor: 3.240