Detection of anti-H5 responses in human sera by HI using horse erythrocytes following MF59-adjuvanted influenza A/Duck/Singapore/97 vaccine

被引：161

作者：

Stephenson, I

Wood, JM

Nicholson, KG

Charlett, A

Zambon, MC

机构：

[1] Enter Resp & Neurol Lab, London NW9 5HT, England

[2] Hlth Protect Agcy, HPA Stat Unit, London NW9 5HT, England

[3] Natl Inst Biol Stand & Controls, Potters Bar EN6 3QG, Herts, England

[4] Leicester Royal Infirm, Infect Dis Unit, Leicester LE1 5WW, Leics, England

来源：

VIRUS RESEARCH | 2004年 / 103卷 / 1-2期

关键词：

avian influenza; haemagglutinin-inhibition; horse erythrocytes; receptor specificity;

D O I：

10.1016/j.virusres.2004.02.019

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Haemagglutination-inhibition (HI) tests are a simple method used to assess immune responses to influenza haemagglutinin. However, HI tests are insensitive at detection of antibody responses to avian haemagglutinin after vaccination or natural infection, even in the presence of high titres of neutralising antibody or virus isolation. Avian influenza viruses preferentially bind to sialic acid receptors that contain N-acetylneuraminic acid alpha2,3-,galactose (alpha2,3Gal) linkages while human viruses preferentially bind to those containing N-acetylneuraminic acid alpha2,6-galactose (alpha2,6Gal) linkages. By using horse erythrocytes in the HI test and thereby increasing the proportion of alpha2,3Gal linkages available for binding, we are able to demonstrate improved detection of antibody to avian H5 in human sera following vaccination with MF59-adjuvanted A/Duck/Singapore/97 surface antigen vaccine. This modified HI test was more sensitive in detection of anti-H5 antibody evoked by revaccination of primed subjects and may be useful in assessing potential avian HA vaccine candidates. (C) 2004 Published by Elsevier B.V.

引用

页码：91 / 95

页数：5

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