Mutant TNF-alpha, mTNF-K90R, is a novel candidate adjuvant for a mucosal vaccine against HIV.
The development of a safe and effective mucosal vaccine adjuvant is a crucial step for the development of vaccines against human immunodeficiency virus type-1 (HIV). We have previously reported that a mutant tumor necrosis factor-alpha (TNF-alpha), mTNF-K90R, possessed strong mucosal vaccine adjuvant activities in mice. Here, we evaluated the potential of mTNF-K90R as a mucosal vaccine adjuvant for the induction of systemic and mucosal immune responses against HIV. Nasal immunization of BALB/c mice with 5 microg of an HIV gp120 env protein immunogen together with mTNF-K90R induced higher serum anti-HIV gp120 protein immunoglobulin G (IgG) responses than gp120 alone. Furthermore, mTNF-K90R induced anti-gp120 IgA responses in nasal as well as vaginal washes from immunized mice, although these were not administration sites. Again, responses with mTNF-K90R were higher than with gp120 alone. These results indicate that mTNF-K90R may be applicable as amucosal adjuvant for HIV vaccination to induce both systemic and mucosal immune responses.
Kayamuro
H
H
Laboratory of Pharmaceutical Proteomics, National Institute of Biomedical Innovation, Osaka, Japan.
Abe
Y
Y
Yoshioka
Y
Y
Katayama
K
K
Yoshida
T
T
Yamashita
K
K
Yoshikawa
T
T
Kawai
Y
Y
Mayumi
T
T
Hiroi
T
T
Itoh
N
N
Nagano
K
K
Kamada
H
H
Tsunoda
S
S
Tsutsumi
Y
Y
D016915:AIDS Vaccines / Q000235:genetics* / Q000276:immunology*; D000276:Adjuvants, Immunologic; D000818:Animals; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D015699:HIV Envelope Protein gp120 / Q000276:immunology; D018928:Immunity, Mucosal / Q000276:immunology*; D007114:Immunization; D007070:Immunoglobulin A / Q000096:biosynthesis; D007074:Immunoglobulin G / Q000096:biosynthesis; D051379:Mice; D008807:Mice, Inbred BALB C; D009092:Mucous Membrane / Q000276:immunology; D010047:Ovalbumin / Q000276:immunology; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics* / Q000276:immunology*
D016915:AIDS Vaccines; D000276:Adjuvants, Immunologic; D015699:HIV Envelope Protein gp120; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D014409:Tumor Necrosis Factor-alpha; D010047:Ovalbumin