tetano
Editor, Senior Moderator
Clin Microbiol Infect. 2011 Oct 19. doi: 10.1111/j.1469-0691.2011.03701.x. [Epub ahead of print]
Profiling of humoral immune responses to influenza viruses by using protein microarray.
Koopmans M, de Bruin E, Godeke GJ, Friesema I, van Gageldonk R, Schipper M, Meijer A, van Binnendijk R, Rimmelzwaan GF, de Jong MD, Buisman A, van Beek J, van de Vijver D, Reimerink J.
Source
Laboratory for Infectious Diseases and Screening, Center for Infectious Disease Control (CIDC), National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands Department of Virology, Erasmus MC, Rotterdam, The Netherlands Epidemiology Department, CIDC, RIVM, Bilthoven, The Netherlands Centre for Methodology and Information Services, RIVM, Bilthoven, The Netherlands Department of Medical Microbiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Abstract
Clin Microbiol Infect ABSTRACT: The emergence of pandemic A(H1N1) 2009 influenza showed the importance of rapid assessment of the degree of immunity in the population, the rate of asymptomatic infection, the spread of infection in households, effects of control measures, and ability of candidate vaccines to produce a response in different age groups. A limitation lies in the available assay repertoire: reference standard methods for measuring antibodies to influenza virus are haemagglutination inhibition (HI) assays and virus neutralization tests. Both assays are difficult to standardize and may be too specific to assess possible partial humoral immunity from previous exposures. Here, we describe the use of antigen-microarrays to measure antibodies to HA1 antigens from seven recent and historical seasonal H1, H2 and H3 influenza viruses, the A(H1N1) 2009 pandemic influenza virus, and three avian influenza viruses. We assessed antibody profiles in 18 adult patients infected with A(H1N1) 2009 influenza virus during the recent pandemic, and 21 children sampled before and after the pandemic, against background reactivity observed in 122 persons sampled in 2008, a season dominated by seasonal A(H1N1) influenza virus. We show that subtype-specific and variant-specific antibody responses can be measured, confirming serological responses measured by HI. Comparison of profiles from persons with similar HI response showed that the magnitude and broadness of response to individual influenza subtype antigens differs greatly between individuals. Clinical and vaccination studies, but also exposure studies, should take these findings into consideration, as they may indicate some level of humoral immunity not measured by HI assays.
?2011 The Authors Clinical Microbiology and Infection ?2011 European Society of Clinical Microbiology and Infectious Diseases.
PMID:
22212116
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/22212116
Profiling of humoral immune responses to influenza viruses by using protein microarray.
Koopmans M, de Bruin E, Godeke GJ, Friesema I, van Gageldonk R, Schipper M, Meijer A, van Binnendijk R, Rimmelzwaan GF, de Jong MD, Buisman A, van Beek J, van de Vijver D, Reimerink J.
Source
Laboratory for Infectious Diseases and Screening, Center for Infectious Disease Control (CIDC), National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands Department of Virology, Erasmus MC, Rotterdam, The Netherlands Epidemiology Department, CIDC, RIVM, Bilthoven, The Netherlands Centre for Methodology and Information Services, RIVM, Bilthoven, The Netherlands Department of Medical Microbiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Abstract
Clin Microbiol Infect ABSTRACT: The emergence of pandemic A(H1N1) 2009 influenza showed the importance of rapid assessment of the degree of immunity in the population, the rate of asymptomatic infection, the spread of infection in households, effects of control measures, and ability of candidate vaccines to produce a response in different age groups. A limitation lies in the available assay repertoire: reference standard methods for measuring antibodies to influenza virus are haemagglutination inhibition (HI) assays and virus neutralization tests. Both assays are difficult to standardize and may be too specific to assess possible partial humoral immunity from previous exposures. Here, we describe the use of antigen-microarrays to measure antibodies to HA1 antigens from seven recent and historical seasonal H1, H2 and H3 influenza viruses, the A(H1N1) 2009 pandemic influenza virus, and three avian influenza viruses. We assessed antibody profiles in 18 adult patients infected with A(H1N1) 2009 influenza virus during the recent pandemic, and 21 children sampled before and after the pandemic, against background reactivity observed in 122 persons sampled in 2008, a season dominated by seasonal A(H1N1) influenza virus. We show that subtype-specific and variant-specific antibody responses can be measured, confirming serological responses measured by HI. Comparison of profiles from persons with similar HI response showed that the magnitude and broadness of response to individual influenza subtype antigens differs greatly between individuals. Clinical and vaccination studies, but also exposure studies, should take these findings into consideration, as they may indicate some level of humoral immunity not measured by HI assays.
?2011 The Authors Clinical Microbiology and Infection ?2011 European Society of Clinical Microbiology and Infectious Diseases.
PMID:
22212116
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/22212116