Abstract:
:Investigation of the human antibody response to the 1957 pandemic H2N2 influenza A virus has been largely limited to serologic studies. We generated five influenza virus hemagglutinin (HA)-reactive human monoclonal antibodies (MAbs) by hybridoma technology from the peripheral blood of healthy donors who were born between 1950 and 1968. Two MAbs reacted with the pandemic H2N2 virus, two recognized the pandemic H3N2 virus, and remarkably, one reacted with both the pandemic H2N2 and H3N2 viruses. Each of these five naturally occurring MAbs displayed hemagglutination inhibition activity, suggesting specificity for the globular head domain of influenza virus HA. When incubated with virus, MAbs 8F8, 8M2, and 2G1 each elicited H2N2 escape mutations immediately adjacent to the receptor-binding domain on the HA globular head in embryonated chicken eggs. All H2N2-specific MAbs were able to inhibit a 2006 swine H2N3 influenza virus. MAbs 8M2 and 2G1 shared the V(H)1-69 germ line gene, but these antibodies were otherwise not genetically related. Each antibody was able to protect mice in a lethal H2N2 virus challenge. Thus, even 43 years after circulation of H2N2 viruses, these subjects possessed peripheral blood B cells encoding potent inhibiting antibodies specific for a conserved region on the globular head of the pandemic H2 HA.
journal_name
J Viroljournal_title
Journal of virologyauthors
Krause JC,Tsibane T,Tumpey TM,Huffman CJ,Albrecht R,Blum DL,Ramos I,Fernandez-Sesma A,Edwards KM,García-Sastre A,Basler CF,Crowe JE Jrdoi
10.1128/JVI.07158-11subject
Has Abstractpub_date
2012-06-01 00:00:00pages
6334-40issue
11eissn
0022-538Xissn
1098-5514pii
JVI.07158-11journal_volume
86pub_type
杂志文章abstract::Myxomatosis is a recurrent problem on rabbit farms throughout Europe despite the success of vaccines. To identify gene variations of field and vaccine strains that may be responsible for changes in virulence, immunomodulation, and immunoprotection, the genomes of 6 myxoma virus (MYXV) strains were sequenced: German fi...
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journal_title:Journal of virology
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journal_title:Journal of virology
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abstract::When human A431 cells, which carry high numbers of epidermal growth factor (EGF) receptors, are exposed to EGF, the total content of phosphotyrosine in cell protein is increased, the EGF receptor becomes phosphorylated at tyrosine, and new phosphotyrosine-containing 36,000- and 81,000-dalton proteins are detected. We ...
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pub_type: 杂志文章
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更新日期:2012-03-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.9.5363-5372.1992
更新日期:1992-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02502-09
更新日期:2010-04-01 00:00:00
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journal_title:Journal of virology
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pub_type: 杂志文章
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更新日期:2003-11-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2009-03-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.46.3.709-717.1983
更新日期:1983-06-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:1971-05-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/JVI.73.12.9969-9975.1999
更新日期:1999-12-01 00:00:00