Infectious bursal disease (IBD) considered as one of the major viral diseases threatening the poultry industry worldwide. The causative agent of the IBD is Infectious bursal disease virus (IBDV) which replicates in developing B lymphocytes in the bursa of Fabricius leading to its destruction and bursal inflammation. In this study, we investigated a technology to produce therapeutic recombinant antibodies against IBDV in bacteria by constructing a bacterial displayed recombinant scFv library from immunized chickens, followed by screening the scFv library by fluorescence activated cell sorting (FACS) with FITC-labeled VP2. Twelve VP2-binding scFv clones with unique sequences were obtained, with overall amino acid homology of 81.53%. The complementarity determining region (CDR) 3 in the heavy chain displayed the lowest homology, while the amino acid sequences in framework regions and CDR2 of both chains and CDR1 of the heavy chain are relatively conserved. Twelve VP2-binding scFv clones were expressed in E.coli and purified through denaturation and denaturation of inclusion bodies. Our ELISA results showed that all scFvs exhibited binding ability and specificity to VP2 and various IBDV strains. In addition, two scFvs showed significant neutralizing activity to IBDV (B-87 strain) as these scFvs inhibited cytopathic effect of chicken embryo fibroblast (DF1) caused by IBDV. In conclusion, our study provides a lead candidate for further development of therapeutic antibodies for IBDV infection.
I am very much pleased with the fast track publication by your reputed journal's editorial team. It is really helpful for researchers like me from developing nations.
I strongly recommend your journal for publication.
Badri Kumar Gupta
Your service is excellent. Processing and editing were very fast. I hope to publish more of my works in your journal.
I am glad to submit the article to Heighten Science Publications as it has a very smooth and fast peer-review process, which enables the researchers to communicate their work on time.
Thanks you and your colleague for the great help for our publication. You always provide prompt responses and high quality of service. I am so happy to have you working with me.
Diana (Ding) Dai
The services of the journal were excellent. The most important thing for an author is the speed of the peer review which was really fast here. They returned in a few days and immediately replied all of my questions. I want to refer this platform to all scholars.
Eastern Mediterranean University, Cyprus
Zehra Guchan TOPCU
Journal of Pulmonary and Respiratory Research is good journal for respiratory research purposes. It takes 2-3 weeks maximum for review of the manuscript to get published and any corrections to be made in the manuscript. It needs good articles and studies to get publish in the respiratory medicine. I am really glad that this journal editors helped me to get my case report published.
We appreciate your approach to scholars and will encourage you to collaborate with your organization, which includes interesting and different medical journals.
With the best wishes of success, creativity and joy in life, prosperity in the medical field.
Ivano- Frankivsk National Medical University, Ukraine
I would like to mention that I had a wonderful experience working with HSPI. The whole process right from manuscript submission to peer review till the publication of the article was very prompt & efficient. I wish you good luck for the future.
Archives of Vascular Medicine is one of the top class journal for vascular medicine with highly interesting topics.
You did a professional and great Job!
I really liked the ease of submitting my manuscript in the HSPI journal. Further, the peer review was timely completed and I was communicated the final decision on my manuscript within 10 days of submission which is really appreciable. I strongly recommend all the scientists and researchers to submit their work in this journal”