Mucosal Immunity in CD4-Deficient Mice: Direct Evidence for Mucosal IgA Antibody Responses
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- Hashizume Tomomi
- Department of Microbiology and Immunology, Nihon University School of Dentistry at Matsudo
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- Tanaka Shunichi
- Department of Microbiology and Immunology, Nihon University School of Dentistry at Matsudo
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- Kaminogawa Shuichi
- Department of Food Science and Technology, Nihon University College of Bioresource Sciences
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- Hosono Akira
- Department of Food Science and Technology, Nihon University College of Bioresource Sciences
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- Kataoka Kosuke
- Department of Preventive Dentistry, Institute of Health Biosciences, The University of Tokushima Graduate School
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- Shinozaki-Kuwahara Noriko
- Department of Microbiology and Immunology, Nihon University School of Dentistry at Matsudo
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- Kweon Mi-Na
- Mucosal Immunology Section, International Vaccine Institute, Seoul National University Research Park
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- Kurita-Ochiai Tomoko
- Department of Microbiology and Immunology, Nihon University School of Dentistry at Matsudo
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- Yamamoto Masafumi
- Department of Microbiology and Immunology, Nihon University School of Dentistry at Matsudo
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Abstract
CD4+ T cells and their derived cytokines are major contributors to the induction and regulation of antigen-specific antibody responses in both mucosal and systemic compartments. Past studies have shown that antigen-specific mucosal immune responses are impaired in CD4 gene-disrupted (CD4-/-) mice ; however, surface IgA+ B cells are found to co-localize to the germinal center area and CD4-CD8- (double negative) T cells replace CD4+ T cells in the Peyer's patches. Thus, we investigated whether different oral delivery systems could elicit mucosal immunity. Here we show that CD4-/- mice are capable of eliciting secretory IgA antibody responses. Oral immunization using tetanus toxoid (TT) with cholera toxin as a mucosal adjuvant resulted in mucosal IgA and serum IgG anti-TT antibody responses. Furthermore, antigen-specific T cell proliferative responses showed that significant TT-specific proliferative responses were induced in the CD4-CD8-, but not CD4-CD8+, T cells from Peyer's patches of CD4-/- mice given TT plus cholera toxin orally. These results suggest that antigen-specific mucosal IgA antibody responses may be induced by CD4-CD8- T cells in the absence of CD4+ T cells.
Journal
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- International Journal of Oral-Medical Sciences
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International Journal of Oral-Medical Sciences 8 (3), 151-156, 2010
Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo
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Details 詳細情報について
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- CRID
- 1390001205212664448
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- NII Article ID
- 130000411495
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- COI
- 1:CAS:528:DC%2BC3cXosl2ntbw%3D
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- ISSN
- 21854254
- 13479733
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed