Production and diagnostic application of monoclonal antibodies against influenza virus H5. 2009

Ming Yang, and Alfonso Clavijo, and Jill Graham, and Tim Salo, and Kate Hole, and Yohannes Berhane
National Centre for Foreign Animal Disease, 1015 Arlington Street, Winnipeg, Manitoba, Canada R3E 3M4. yangm@inspection.gc.ca

Nine monoclonal antibodies (mAbs) against avian influenza virus (AI) H5 subtype from mice immunized with inactivated virus H5N1 (A/Turkey/ON/6213/66) were produced. Upon testing, the results indicated that the binding epitopes of eight out of the nine mAbs were conformational, while one mAb (#7) reacted with denatured H5N1 only. Two mAbs #10 and #11 reacted with all of the thirteen H5 strains tested indicating that the binding epitopes of these mAbs were conserved among these H5 subtypes. Possible applications of these mAbs in rapid tests for H5 antigen were explored. Double antibody sandwich (DAS) ELISAs were developed using two selected mAbs #10 and #11. This DAS ELISA detects specific H5 viruses and is able to identify all thirteen H5 strains tested. Three mAbs showed reactivity with AI H5 antigen for both immunofluorescence (IF) and immunohistochemistry. A cELISA used to screen chickens that had been infected with an H5 virus was developed with mAb #9 and recombinant H5 antigen. The sera from chickens that have been infected with an H5N1 virus were examined using the cELISA. 80% of the sera from H5 infected chickens showed a positive H5 specific antibody response at 7 days post-infection (dpi) and remained positive until the end of the experiment on day 30 (>40% inhibition). This panel of the AI H5 specific mAbs is valuable for the development of various immunoassays.

UI MeSH Term Description Entries
D008807 Mice, Inbred BALB C An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research. BALB C Mice, Inbred,BALB C Mouse, Inbred,Inbred BALB C Mice,Inbred BALB C Mouse,Mice, BALB C,Mouse, BALB C,Mouse, Inbred BALB C,BALB C Mice,BALB C Mouse
D011201 Poultry Diseases Diseases of birds which are raised as a source of meat or eggs for human consumption and are usually found in barnyards, hatcheries, etc. The concept is differentiated from BIRD DISEASES which is for diseases of birds not considered poultry and usually found in zoos, parks, and the wild. Disease, Poultry,Diseases, Poultry,Poultry Disease
D011994 Recombinant Proteins Proteins prepared by recombinant DNA technology. Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
D002645 Chickens Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA. Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D005585 Influenza in Birds Infection of domestic and wild fowl and other BIRDS with INFLUENZA A VIRUS. Avian influenza usually does not sicken birds, but can be highly pathogenic and fatal in domestic POULTRY. Avian Flu,Avian Influenza,Fowl Plague,Influenza, Avian,Avian Influenzas,Flu, Avian,Influenza in Bird,Influenzas, Avian,Plague, Fowl
D006385 Hemagglutination Inhibition Tests Serologic tests in which a known quantity of antigen is added to the serum prior to the addition of a red cell suspension. Reaction result is expressed as the smallest amount of antigen which causes complete inhibition of hemagglutination. Hemagglutination Inhibition Test,Inhibition Test, Hemagglutination,Inhibition Tests, Hemagglutination,Test, Hemagglutination Inhibition,Tests, Hemagglutination Inhibition
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal

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