Abstract |
Chlamydia trachomatis, an obligate intracellular bacterial pathogen, is the major cause of sexually transmitted diseases worldwide. Although a variety of strategies have been taken to promote the development of a protective vaccine, no ideal vaccine has been generated so far. In this study, we transfected dendritic cells (DCs) with recombinant adenovirus carrying C. trachomatis serovar E major outer membrane protein gene (Ad-MOMP), and investigated their ability to induce specific protection against genital tract chlamydial challenge infection. The results showed that when DCs were transfected with Ad-MOMP in vitro, the DCs exhibited increased expression of CD80 and MHC-II molecules as well as enhanced IL-12 secretion and were able to stimulate T-cell proliferation. The level of IFN-gamma secreted by stimulated T cells was also up-regulated significantly. When the Ad-MOMP transfected DCs were adoptively transferred intravenously to naive mice, they generated Th1-biased cytokine production and mucosal IgA responses specific for C. trachomatis. More importantly, the mice immunized with Ad-MOMP-DC mounted protection against genital tract challenge infection, shown by lower body mass loss, lower chlamydial loads, and less severe pathological changes. In conclusion, Ad-MOMP transfected DCs are capable of inducing effective protective immune responses against C. trachomatis genital infection.
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Authors | Hui Lü, Hong Wang, Hong-Mei Zhao, Lei Zhao, Qiang Chen, Mei Qi, Juan Liu, Han Yu, Xiu-Ping Yu, Xi Yang, Wei-Ming Zhao |
Journal | Biochemistry and cell biology = Biochimie et biologie cellulaire
(Biochem Cell Biol)
Vol. 88
Issue 4
Pg. 757-65
(Aug 2010)
ISSN: 1208-6002 [Electronic] Canada |
PMID | 20651849
(Publication Type: Evaluation Study, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Porins
- omp1 protein, Chlamydia trachomatis
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Topics |
- Adenoviridae
(genetics)
- Animals
- Cells, Cultured
- Chlamydia Infections
(genetics, immunology, therapy)
- Chlamydia trachomatis
(immunology, physiology)
- Dendritic Cells
(immunology, metabolism, physiology, transplantation)
- Female
- Genital Diseases, Female
(genetics, immunology, therapy)
- Immunity, Innate
(genetics, physiology)
- Immunotherapy, Adoptive
(methods)
- Mice
- Mice, Inbred BALB C
- Porins
(genetics, immunology)
- Transfection
- Transgenes
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