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논문 기본 정보

자료유형
학술저널
저자정보
Jeong-Ki Kim (Korea University College of Pharmacy) Sinyoung Cheong (Korea Research Institute of Bioscience and Biotechnology) Myung Kyu Lee (Korea Research Institute of Bioscience and Biotechnology)
저널정보
대한면역학회 Immune Network Immune Network Vol.19 No.4
발행연도
2019.8
수록면
78 - 86 (9page)

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초록· 키워드

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The matrix protein 2 of influenza A virus (IFAV) has a relatively conserved ectodomain (M2e) composed of 23 amino acids, and M2e-based vaccines have been suggested to induce broad protective immunity in mice. In this study, we investigated whether N-terminal sequence of M2e (nM2e)-based vaccines with more conserved nM2e could induce influenza viral neutralizing activity. We constructed linear peptide vaccines with an nM2e sequence for PR8 virus (nM2Pr) connected to a probable 17-mer IFAV-derived helper T-cell epitope (ThE: T1, T2, or T3) at its N- or C-terminus. The peptide vaccines induced significant production of nM2e Abs regardless of either type or location of the ThE-epitope in BALB/c mice, while only T3 was effective in C57BL/6 mice. The Abs against nM2Pr-T3 elicited broader binding affinities to the nM2e peptides derived from various IFAVs than those against T3-nM2Pr. In addition, the nM2e-based vaccines efficiently protected the immunized mice from the lethal challenge of PR8 virus. These results suggest that the more conserved nM2e without cysteine will be useful for development of universal peptide vaccines than M2e.

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ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2019-517-001220081