Evaluating the Immunogenicity of Avian Influenza Virus Nucleoprotein
نویسندگان
چکیده مقاله:
Background: Influenza viruses cause Avian Influenza (AI) is a serious infectious disease belonging to type A Orthomyxovirus. A viral RNA synthesis is due to an interaction of the nucleoprotein (NP) with the viral polymerase. In the present study, we have evaluated the immunogenicity of avian influenza virus nucleoprotein. Materials & Methods: An Influenza Virus N9H2 subtype A/Chicken Iran/259/2014 was selected. In order to perform electrophoresis and purification of nucleoprotein, the protein concentration of the samples was determined. SDS-PAGE and Native-PAGE electrophoresis on polyacrylamide gel were done and differences in gel bands in two methods were compared. Purification of the virus nucleoprotein performed by electroelution method and purified nucleoprotein were assayed by ELISA to obtain the produced antibody titers. Ouchterlony and western blot tests were used for final approval. Results: By determining the molecular weight of each polypeptides, the molecular weights of H9N2 proteins were ranged from 30 to 140kDa and the molecular weight of the nucleoprotein was 60kDa. The nucleoprotein was purified by electroelution method. Ouchterlony showed that in serum dilution of 1:2 and 1:4, the sediment lines were formed between the serum and the NP antigen. The NP-ELISA enables rapid serological diagnosis in 1:20. Finally, the western blot test confirmed the 60kDa nucleoprotein band. Conclusion: The nucleoprotein which was purified by electroelution retained its antigenic property and it could be applied in diagnostic kits.
منابع مشابه
Production of monoclonal antibodies against recombinant nucleoprotein of avian influenza virus, serotype H9N2
Background: Avian influenza viruses (AIVs) including the subtype H9N2 cause considerable financial losses to poultry industries. Rapid and accurate diagnosis of avian influenza (AI) infection is important in control and eradication programs. OBJECTIVES: The aim of this study was to produce monoclonal antibodies (MAbs) specific for the nucleocapsid protein )NP (of AIV H9N2 subtype to improve dia...
متن کاملImmunogenicity of Concentrated and Purified Inactivated Avian Influenza Vaccine Formulation
Avian influenza (AI) H9N2 is a low pathogenic virus subtype belonging to Orthomyxoviridae family. Given the prevalence of this subtype as an infectious agent in poultry industry, special attention has been always directed toward the development of vaccine production against this infection. The vaccine of this infection is produced by killing the virus and using a mixture of inactivated antigen ...
متن کاملPolyclonal Antibody against Recombinant Nucleoprotein of the Influenza A Virus (H1N1); Production and Purification
Background and Aims: Influenza is an acute respiratory illness that is caused by a virus belonging to Orthomyxoviridae family. This virus spreads rapidly every year in cold season and leads to morbidities and mortalities especially in adults and children, which causes billions of dollars of economic losses. Accordingly, development of a rapid, sensitive and inexpensive laboratory diagnosis base...
متن کاملEvaluation of immunogenicity of recombinant influenza nucleoprotein (NP) for universal vaccine
Background: Influenza vaccines based on conserved proteins are being developed persistently. The conserved protein vaccines based on Nucleoprotein (NP) are highly protected vaccines against influenza viruses that can be used as a Universal vaccine. Aluminum hydroxide (Alum) is the most common adjuvant used in vaccine formulation to improve immunization by altering the epitopes’ folds. However, ...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 14 شماره 6
صفحات 643- 659
تاریخ انتشار 2020-11
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
کلمات کلیدی برای این مقاله ارائه نشده است
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023