Enhanced cross protection by hetero prime-boost vaccination with recombinant influenza viruses containing chimeric hemagglutinin-M2e epitopes.
Enhanced cross protection by hetero prime-boost vaccination with recombinant influenza viruses containing chimeric hemagglutinin-M2e epitopes.
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DOI:
10.1016/j.virol.2021.12.003
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发表时间:
2022-01
期刊:
影响因子:
3.7
通讯作者:
Kang SM
中科院分区:
文献类型:
--
作者:
Park BR;Subbiah J;Kim KH;Kwon YM;Oh J;Kim MC;Shin CH;Seong BL;Kang SM
Annual repeat influenza vaccination raises concerns about protective efficacy against mismatched viruses. We investigated the impact of heterologous prime-boost vaccination on inducing cross protection by designing recombinant influenza viruses with chimeric hemagglutinin (HA) carrying M2 extracellular domains (M2e-HA). Heterologous prime-boost vaccination of C57BL/6 mice with M2e-HA chimeric virus more effectively induced M2e and HA stalk specific IgG antibodies correlating with cross protection than homologous prime-boost vaccination. Induction of M2e and HA stalk specific IgG antibodies was compromised in 1-year old mice, indicating significant aging effects on priming subdominant M2e and HA stalk IgG antibody responses. This study demonstrates that a heterologous prime-boost strategy with recombinant influenza virus expressing extra M2e epitopes provides more effective cross protection than homologous vaccination.
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影响因子:
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作者:
Kotomina T;Isakova-Sivak I;Kim KH;Park BR;Jung YJ;Lee Y;Mezhenskaya D;Matyushenko V;Kang SM;Rudenko L
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DOI:
10.1073/pnas.2004783117
发表时间:
2020-07-28
影响因子:
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通讯作者:
Sullivan, Sheena G.