Immunization with glutathione S-transferase and mutant toxic shock syndrome toxin 1 fusion protein protects against Staphylococcus aureus infection.
To investigate whether immunization with glutathione S-transferase (GST) and mutant toxic shock syndrome toxin 1 (mTSST-1) fusion protein can protect against Staphylococcus aureus infection, we purified a non-toxic mutant GST-mTSST-1 fusion protein. Mice were immunized with the GST-mTSST-1 plus alum adjuvant and then challenged with viable S. aureus. The results showed that the survival rate of GST-mTSST-1-immunized group was higher and the bacteria counts in the organs were significantly lower than those of the non-immunized mice. Immunization with GST-mTSST-1 induced strongly the production of TSST-1 specific antibodies, especially immunoglobulin G1 and immunoglobulin G2b. Furthermore, the serum samples from GST-mTSST-1-immunized mice also significantly inhibited interferon-gamma and tumor necrosis factor-alpha production from murine spleen cells by TSST-1. These results suggest that vaccination with GST-mTSST-1 provides protection against S. aureus infection and that the protection might be mediated by TSST-1-neutralizing antibody.
Department of Bacteriology, Hirosaki University School of Medicine, Hirosaki 036-8562, Japan; Department of Bio-Engineering, Dalian Nationalities University, Dalian 116600, PR China.
Jing-Chun
JC
Cui
Dong-Liang
DL
Hu
Yan-Chun
YC
Lin
Ai-Dong
AD
Qian
Akio
A
Nakane
D000276:Adjuvants, Immunologic; D000818:Animals; D000907:Antibodies, Bacterial / Q000096:biosynthesis / Q000276:immunology; D001427:Bacterial Toxins / Q000235:genetics / Q000276:immunology*; D001428:Bacterial Vaccines / Q000276:immunology*; D015169:Colony Count, Microbial; D004195:Disease Models, Animal; D004768:Enterotoxins / Q000235:genetics / Q000276:immunology*; D005982:Glutathione Transferase / Q000235:genetics*; D007074:Immunoglobulin G / Q000097:blood; D007371:Interferon-gamma / Q000096:biosynthesis; D008214:Lymphocytes / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C; D009500:Neutralization Tests; D011993:Recombinant Fusion Proteins / Q000276:immunology; D013203:Staphylococcal Infections / Q000517:prevention & control*; D013211:Staphylococcus aureus / Q000276:immunology*; D018089:Superantigens / Q000235:genetics / Q000276:immunology*; D016019:Survival Analysis; D014409:Tumor Necrosis Factor-alpha / Q000096:biosynthesis; D014614:Vaccines, Synthetic / Q000276:immunology
D000276:Adjuvants, Immunologic; D000907:Antibodies, Bacterial; D001427:Bacterial Toxins; D001428:Bacterial Vaccines; D004768:Enterotoxins; D007074:Immunoglobulin G; D011993:Recombinant Fusion Proteins; D018089:Superantigens; D014409:Tumor Necrosis Factor-alpha; D014614:Vaccines, Synthetic; C030107:enterotoxin F, Staphylococcal; D007371:Interferon-gamma; D005982:Glutathione Transferase