Abstract:
AIM:There is still no specific therapy for infection with the highly pathogenic avian influenza A virus (HPAI) H5N1, which caused 39 human cases with a 64% fatality rate in 2013. MATERIALS & METHODS:We prepared highly purified specific equine polyclonal immunoglobulin fragments (F(ab')2) against H5N1 and tested them for efficacy in vitro and with different administration schedules in H5N1-challenged BALB/c mice. RESULTS:in vitro, F(ab')2 neutralized 21 different H5N1 strains from different areas, representative of 11 different clades and sub-clades and 9 years of evolution of the virus. In vivo mouse experiments identified that the most efficient administration protocol consists of five consecutive daily injections after infection; 10 mg/kg giving a 60% increase in survival. CONCLUSION:These data demonstrate the ability of anti-H5N1 F(ab')2 to markedly reduce the mortality and morbidity associated with infection of mice with HPAI H5N1 virus, and their potential for human therapy.
journal_name
Immunotherapyjournal_title
Immunotherapyauthors
Herbreteau CH,Jacquot F,Rith S,Vacher L,Nguyen L,Carbonnelle C,Lotteau V,Jolivet M,Raoul H,Buchy P,Saluzzo JFdoi
10.2217/imt.14.40subject
Has Abstractpub_date
2014-01-01 00:00:00pages
699-708issue
6eissn
1750-743Xissn
1750-7448journal_volume
6pub_type
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