R A Lawrence
Altered antibody responses in mannose-binding lectin-A deficient mice do not affect Trichuris muris or Schistosoma mansoni infections
Lawrence, R A; Carter, T; Bell, L V; Else, K J; Summerfield, J; Bickle, Q
Authors
T Carter
L V Bell
K J Else
J Summerfield
Q Bickle
Abstract
Parasitic helminths possess surface glycoconjugates that are recognized by the serum collectin molecule, mannose-binding lectin (MBL). Once bound, MBL triggers the lectin pathway of complement. Mice have two MBL, MBL-A and MBL-C. We previously showed that MBL-A deficient (MBL-A(-/-)) mice have enhanced survival of Brugia malayi microfilariae and abrogated microfilariae-specific IgM responses. In this study we show that MBL-A deficiency does not alter immunity to either Trichuris muris or Schistosoma mansoni. However, anti-nematode IgM levels were significantly lower in T. muris infected MBL-A(-/-) than wild-type mice. Interestingly nematode-specific IgG1 and IgG2a levels were higher in MBL-A(-/-) mice. Although, larval schistosomes are surrounded by a complement-sensitive membranous tegument, neither adult worm development, egg output, egg granuloma size nor cellular composition was affected in MBL-A(-/-) mice. In contrast to anti-nematode IgM responses, anti-schistosome IgM (and also IgG1 and IgG2b) responses were unaltered from wild-type mice. Anti-schistosome IgG2a was elevated, while IgG3 was significantly lowered, in MBL-A(-/-) mice. These results suggest that MBL-A is not a necessary component for immunity to either T. muris or S. mansoni helminths, however, MBL-A appears to be necessary for the development of specific IgM responses to nematode antigens.
Citation
Lawrence, R. A., Carter, T., Bell, L. V., Else, K. J., Summerfield, J., & Bickle, Q. Altered antibody responses in mannose-binding lectin-A deficient mice do not affect Trichuris muris or Schistosoma mansoni infections. Parasite Immunology, 31(2), 104-109. https://doi.org/10.1111/j.1365-3024.2008.01071.x
Journal Article Type | Other |
---|---|
Deposit Date | Nov 11, 2014 |
Journal | Parasite Immunology |
Print ISSN | 0141-9838 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 31 |
Issue | 2 |
Pages | 104-109 |
DOI | https://doi.org/10.1111/j.1365-3024.2008.01071.x |
Public URL | https://rvc-repository.worktribe.com/output/1426363 |
Additional Information | Corporate Creators : Imperial College London, LSHTM, Manchester |
Downloadable Citations
About RVC Repository
Administrator e-mail: publicationsrepos@rvc.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search