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Evaluation of Methods for Generating Senecavirus A Virus-Like Particles Utilizing the Baculovirus Expression Vector System
Başlık:
Evaluation of Methods for Generating Senecavirus A Virus-Like Particles Utilizing the Baculovirus Expression Vector System
Yazar:
English, Jennifer Lynn, author.
ISBN:
9780438072046
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (75 pages)
Genel Not:
Source: Masters Abstracts International, Volume: 57-06M(E).
Advisors: James A. Roth; Eric M. Vaughn Committee members: Kenneth J. Stalder.
Özet:
A recombinant subunit vaccine against Seneca Valley virus (SVV) would be valuable to the swine industry. Recent SVV outbreaks have raised concerns with national biosecurity. This is due to the potential of foreign vesicular animal diseases entering the United States undetected because of confounding clinical signs of SVV. Research with the baculovirus expression vector system (BEVS) has produced virus-like particles (VLP) that elicited neutralizing antibodies and protected against challenge for many Picornaviridae viruses. Building on this previous research, attempts of SVV VLP assembly for a vaccine candidate were performed using the BEVS.
All baculovirus constructs were designed to encode the SVV P1 region, 2A protease, portions of the 2B and 3B genes and 3C protease. Recombinant SVV proteins VP1, VP2 and VP3 were expressed in several baculovirus construct iterations. Peptide specific antibodies detected each protein by means of Western blot analysis. Sucrose gradient fractionation and electron microscopy (EM) were performed to verify VLP formation. However, VLP production was not confirmed by either method.
Several factors influence the assembly of SVV VLPs. One outcome providing insight of the complete cleavage of the recombinant capsid proteins is the identification of a 55kDa protein band. This band was detected in the alpha-SVV VP1 and alpha-SVV VP3 Western blots. Also, the 3C protease and its impact in the BEVS need further investigation to determine its role in complete cleavage of the recombinant capsid proteins. Lastly, there were indications the recombinant capsid proteins were aggregating instead of folding properly into VLPs. The gaps in information noted here support the need for further research into capsid formation in Picornaviridae viruses to improve VLP assembly using the BEVS.
Notlar:
School code: 0097
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(688099.1) | 688099-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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