title: Characterization of murine T-cell epitopes on mycobacterial DNA-binding protein 1 (MDP1) using DNA vaccination.
abstract: Mycobacterial DNA-binding protein 1 (MDP1) is a major protein antigen in mycobacteria and induces protective immunity against Mycobacterium tuberculosis infection in mice. In this study we determined murine T-cell epitopes on MDP1 with MDP1 DNA immunization in mice. We analyzed interferon-gamma production from the MDP1 DNA-immune splenocytes in response to 20-mer overlapping peptides covering MDP1 protein. We identified several CD4+ T-cell epitopes in three inbred mouse strains and one CD8+ T-cell epitope in C57BL/6 mice. These T-cell epitopes would be feasible for analysis of the role of MDP1-specific T-cells in protective immunity and for future vaccine design against M. tuberculosis infection.
authors.affiliation: 3rd Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Higashi-ku, Handa-yama, Hamamatsu, Japan. zonxs@hama-med.ac.jp
authors.forename: Daisuke
authors.initials: D
authors.lastname: Suzuki
authors.forename: Toshi
authors.initials: T
authors.lastname: Nagata
authors.forename: Ghada
authors.initials: G
authors.lastname: Eweda
authors.forename: Sohkichi
authors.initials: S
authors.lastname: Matsumoto
authors.forename: Makoto
authors.initials: M
authors.lastname: Matsumoto
authors.forename: Kunio
authors.initials: K
authors.lastname: Tsujimura
authors.forename: Yukio
authors.initials: Y
authors.lastname: Koide
mesh_terms: D000465:Algorithms; D000595:Amino Acid Sequence; D000818:Animals; D000942:Antigens, Bacterial / Q000276:immunology*; D001426:Bacterial Proteins / Q000276:immunology*; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology; D002478:Cells, Cultured; D004268:DNA-Binding Proteins / Q000276:immunology*; D018984:Epitopes, T-Lymphocyte / Q000276:immunology*; D005260:Female; D007371:Interferon-gamma / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C; D008809:Mice, Inbred C3H; D008810:Mice, Inbred C57BL; D008969:Molecular Sequence Data; D010957:Plasmids; D013154:Spleen / Q000166:cytology / Q000276:immunology; D032581:Tuberculosis Vaccines / Q000276:immunology*; D019444:Vaccines, DNA / Q000276:immunology*
chemical_list: D000942:Antigens, Bacterial; D001426:Bacterial Proteins; D004268:DNA-Binding Proteins; D018984:Epitopes, T-Lymphocyte; C403010:MDP1 protein, Mycobacterium; D032581:Tuberculosis Vaccines; D019444:Vaccines, DNA; D007371:Interferon-gamma