Volume 4, Issue 1 And 2 (5-2017)                   vacres 2017, 4(1 And 2): 34-40 | Back to browse issues page


XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Farahmand B, Akbari A, Akbari K, Fotouhi Chahouki F, Mehrbod P, Jalili N. Cloning, expression and purification of hemagglutinin conserved domain (HA2) of influenza A virus, to be used in broad-spectrum subunit vaccine cocktails. vacres 2017; 4 (1 and 2) :34-40
URL: http://vacres.pasteur.ac.ir/article-1-106-en.html
Influenza and Other Respiratory Viruses Department, Pasteur Institute of IRAN, Tehran, Iran.
Abstract:   (6402 Views)
Introduction: Influenza virus has several conserved peptides which have the capacity to be used as suitable candidates for appropriate and stable vaccine production against different types of influenza viruses. One of these peptides is HA2, the hemagglutinin stalk domain which mediates the membrane fusion and is conserved amongst different sub-types of influenza virus. This peptide is a good candidate for participation in vaccine structure to induce immunity and antibody production. The ensued antibody may hamper the membrane fusion and subsequently the virus propagation. Methods: The peptide sequence of HA2 from influenza virus A/Tehran/18/2010 (H1N1) was analyzed using in silico tools in order to evaluate its physicochemical properties and identification of its best immunogenic sites. The confirmed sequence was amplified and cloned into a pET28a vector and the recombinant protein was over-expressed prokaryotically and confirmed by Western blotting. Results: The bioinformatics data showed that HA2 peptide stability and immunogenicity. The generated HA2 construct was confirmed by PCR, endonuclease restriction enzyme analysis and sequencing. The expression of HA2 was confirmed by SDS-PAGE and Western blot analysis. The results on the cell lysate demonstrated the high expression of HA2 subunit of the influenza virus hemagglutinin. Conclusion: One of the disadvantages of the current flu vaccines is that they cannot produce efficient broad-spectrum cellular and humoral immune responses against all subtypes of the virus due to the genetic variation of the virus. Therefore, such a conserved protein is potentially a good candidate for production of a broad-spectrum vaccine to prevent influenza epidemics and pandemics.
Full-Text [PDF 904 kb]   (1352 Downloads)    
Type of Study: Original article |
Received: 2018/01/13

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 All Rights Reserved | Vaccine Research

Designed & Developed by : Yektaweb

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.