Distinct B‐cell populations contribute to vaccine antigen‐specific antibody production in a transgenic mouse model
Summary The generation of memory B cells by vaccination plays a critical role in maintaining antigen‐specific antibodies and producing antibody responses upon re‐exposure to a pathogen. B‐cell populations contributing to antibody production and protection by vaccination remain poorly defined. We use...
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Published in | Immunology Vol. 142; no. 4; pp. 624 - 635 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
Wiley Subscription Services, Inc
01.08.2014
Blackwell Science Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Summary
The generation of memory B cells by vaccination plays a critical role in maintaining antigen‐specific antibodies and producing antibody responses upon re‐exposure to a pathogen. B‐cell populations contributing to antibody production and protection by vaccination remain poorly defined. We used influenza virus‐like particle (VLP) vaccine in a transgenic mouse model that would identify germinal centre‐derived memory B cells with the expression of yellow fluorescent protein (YFP+ cells). Immunization with influenza VLP vaccine did not induce significant increases in YFP+ cells although vaccine antigen‐specific antibodies in sera were found to confer protection against a lethal dose of influenza A virus (A/PR8). In addition, CD43+ B220− populations with low YFP+ cells mainly contributed to the production of vaccine antigen‐specific IgG isotype‐switched antibodies whereas CD43− B220+ populations with high YFP+ cells were able to produce vaccine antigen‐specific IgM antibodies. Challenge infection of immunized transgenic mice with live influenza A virus resulted in significant increases in YFP+ cells in the B220− populations of spleen and bone marrow cells. These results suggest that CD43+ B220− B cells generated by vaccination are important for producing influenza vaccine antigen‐specific antibodies and conferring protection. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0019-2805 1365-2567 |
DOI: | 10.1111/imm.12287 |