Abstract：
:A panel of 17 monoclonal antibodies (MAbs) against highly pathogenic avian influenza virus (HPAIV) A/Duck/Novosibirsk/56/05 A/H5N1 (subclade 2.2) isolated in Russian Federation was developed. Immunoblot analysis showed that 12 MAbs were specific for the hemagglutinin (HA) and 5 MAbs for nucleoprotein (NP). All anti-HA MAbs were reactive in ELISA and immunofluorescence (IF) test and 10 of them were reactive in hemagglutination-inhibition (HI) and neutralization tests. Quantitative competitive ELISA revealed that anti-HA MAbs recognized at least 4 non-overlapping antigenic determinants and anti-NP MAbs recognized at least 3 non-overlapping antigenic determinants. Four sandwich ELISA procedures were developed using the obtained MAbs. These procedures are useful for 1) identification of avian, human, and swine influenza A viruses, 2) differentiation of avian influenza virus (AIV) from human and swine influenza viruses, 3) differentiation of AIV H5 from other AIV subtypes, and 4) differentiation between 2.2 and 2.3.2 subclades of H5N1 influenza viruses. Prophylactic and therapeutic efficacy of anti-HA MAbs with high neutralization activity was tested in BALB/c mice. A complete protection was achieved by single injection of MAbs (20 mg/kg) 24 hrs before challenge with 10 LD50 of HPAIV H5N1. Therapeutic efficacy was 90% that was similar to those of Rimantadine and Tamiflu.
journal_name
Acta Viroljournal_title
Acta virologicaauthors
Masalova OV,Klimova RR,Chichev EV,Fediakina IT,Loginova SY,Borisevich SV,Bondarev VP,Deryabin PG,Lvov DK,Kushch AAdoi
10.4149/av_2011_01_3subject
Has Abstractpub_date
2011-01-01 00:00:00pages
3-14issue
1eissn
0001-723Xissn
1336-2305journal_volume
55pub_type
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