Research output: Contribution to journal › Article › peer-review
Characterization of an influenza A H5N2 reassortant as a candidate for live-attenuated and inactivated vaccines against highly pathogenic H5N1 viruses with pandemic potential. / Desheva, J. A.; Lu, X. H.; Rekstin, A. R.; Rudenko, L. G.; Swayne, D. E.; Cox, N. J.; Katz, J. M.; Klimov, A. I.
In: Vaccine, Vol. 24, No. 47-48, 17.11.2006, p. 6859-6866.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Characterization of an influenza A H5N2 reassortant as a candidate for live-attenuated and inactivated vaccines against highly pathogenic H5N1 viruses with pandemic potential
AU - Desheva, J. A.
AU - Lu, X. H.
AU - Rekstin, A. R.
AU - Rudenko, L. G.
AU - Swayne, D. E.
AU - Cox, N. J.
AU - Katz, J. M.
AU - Klimov, A. I.
PY - 2006/11/17
Y1 - 2006/11/17
N2 - We generated a high-growth 7:1 reassortant (Len17/H5) that contained the hemagglutinin (HA) gene from non-pathogenic A/Duck/Potsdam/1402-6/86 (H5N2) virus and other genes from the cold-adapted (ca) attenuated A/Leningrad/134/17/57 (H2H2) strain. Len17/H5 demonstrated an attenuated phenotype in mice and did not infect chickens. Mice administered Len17/H5 either as a live-attenuated intranasal vaccine or as an inactivated intramuscular vaccine were substantially protected from lethal challenge with highly pathogenic A/Hong Kong/483/97 (H5N1) virus and were protected from pulmonary infection with antigenically distinct A/Hong Kong/213/2003 (H5N1) virus. The cross-protective effect correlated with the levels of virus-specific mucosal IgA and/or serum IgG antibodies. Our results suggest a new strategy of using classical genetic reassortment between a high-growth ca H2N2 strain and antigenically related non-pathogenic avian viruses to prepare live-attenuated and inactivated vaccines for influenza pandemic.
AB - We generated a high-growth 7:1 reassortant (Len17/H5) that contained the hemagglutinin (HA) gene from non-pathogenic A/Duck/Potsdam/1402-6/86 (H5N2) virus and other genes from the cold-adapted (ca) attenuated A/Leningrad/134/17/57 (H2H2) strain. Len17/H5 demonstrated an attenuated phenotype in mice and did not infect chickens. Mice administered Len17/H5 either as a live-attenuated intranasal vaccine or as an inactivated intramuscular vaccine were substantially protected from lethal challenge with highly pathogenic A/Hong Kong/483/97 (H5N1) virus and were protected from pulmonary infection with antigenically distinct A/Hong Kong/213/2003 (H5N1) virus. The cross-protective effect correlated with the levels of virus-specific mucosal IgA and/or serum IgG antibodies. Our results suggest a new strategy of using classical genetic reassortment between a high-growth ca H2N2 strain and antigenically related non-pathogenic avian viruses to prepare live-attenuated and inactivated vaccines for influenza pandemic.
KW - Avian influenza vaccine
KW - Influenza pandemic
KW - Mouse model
UR - http://www.scopus.com/inward/record.url?scp=33846240928&partnerID=8YFLogxK
U2 - 10.1016/j.vaccine.2006.06.023
DO - 10.1016/j.vaccine.2006.06.023
M3 - Article
C2 - 17050041
AN - SCOPUS:33846240928
VL - 24
SP - 6859
EP - 6866
JO - Vaccine
JF - Vaccine
SN - 0264-410X
IS - 47-48
ER -
ID: 99383249