Document Detail


Oral immunization with Porphyromonas gingivalis outer membrane protein and CpGoligodeoxynucleotides elicits T helper 1 and 2 cytokines for enhanced protective immunity.
MedLine Citation:
PMID:  20502628     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of this study was to evaluate the efficacy of an oral vaccine containing the 40-kDa outer membrane protein of Porphyromonas gingivalis (40K OMP) and synthetic oligodeoxynucleotides containing unmethylated CpG dinucleotides (CpG ODN) to control oral infection by P. gingivalis. [run on]40K-OMP40K-OMP40K-OMPOral immunization with 40K-OMP plus CpG ODN induced significant 40K-OMP-specific serum IgG, IgA and saliva IgA antibody responses. The 40K-OMP-specific CD4(+) T cells induced by oral 40K-OMP plus CpG ODN produced both Th1 (IFN-gamma) and Th2 (IL-4) cytokines. Furthermore, increased frequencies of CD11c(+)B220(+) DCs and CD11c(+)CD11b(+) DCs with up-regulated expression of CD80, CD86, CD40 and MHC II molecules were noted in spleen, Peyer's patches and cervical lymph nodes. Immunized mice were then infected orally with P. gingivalis to determine whether the immune responses induced by oral 40K-OMP plus CpG ODN were capable of suppressing bone resorption caused by P. gingivalis infection. Mice given 40K-OMP plus CpG ODN showed significantly reduced bone loss associated with oral infection by P. gingivalis.Thus, oral administration of 40K-OMP together with CpG ODN induces Th1- and Th2-type cells, which provide help for protective immunity against P. gingivalis infection. This may be an important tool for prevention of chronic periodontitis.
Authors:
Chenlu Liu; Tomomi Hashizume; Tomoko Kurita-Ochiai; Kohtaro Fujihashi; Masafumi Yamamoto
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Molecular oral microbiology     Volume:  25     ISSN:  2041-1014     ISO Abbreviation:  Mol Oral Microbiol     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-06-11     Completed Date:  2010-09-22     Revised Date:  2011-09-26    
Medline Journal Info:
Nlm Unique ID:  101524770     Medline TA:  Mol Oral Microbiol     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  178-89     Citation Subset:  D    
Affiliation:
Department of Microbiology and Immunology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271-8587, Japan.
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MeSH Terms
Descriptor/Qualifier:
Administration, Oral
Alveolar Bone Loss / immunology,  prevention & control*
Animals
Antibodies, Bacterial / blood
Bacterial Outer Membrane Proteins / immunology*
Bacterial Vaccines / administration & dosage,  chemistry*
Bacteroidaceae Infections / immunology,  prevention & control*
Chronic Periodontitis / immunology,  prevention & control*
CpG Islands / immunology*
Dendritic Cells / physiology
Female
Interferon-gamma / biosynthesis
Interleukin-4 / biosynthesis
Mice
Mice, Inbred BALB C
Oligodeoxyribonucleotides / immunology*
Porphyromonas gingivalis / chemistry,  immunology*
Quorum Sensing / genetics
Th1 Cells / metabolism
Th2 Cells / metabolism
Grant Support
ID/Acronym/Agency:
AG 025873/AG/NIA NIH HHS; DE12242/DE/NIDCR NIH HHS; R01 AG025873-04/AG/NIA NIH HHS; R01 DE012242-13/DE/NIDCR NIH HHS
Chemical
Reg. No./Substance:
0/Antibodies, Bacterial; 0/Bacterial Outer Membrane Proteins; 0/Bacterial Vaccines; 0/Oligodeoxyribonucleotides; 207137-56-2/Interleukin-4; 82115-62-6/Interferon-gamma
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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