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  1. KEEP
  2. Theses and Dissertations
  3. Barrett, The Honors College Thesis/Creative Project Collection
  4. Display of Domain III from Dengue 2 Envelope Protein on HBsAg Virus-like Particles Vectored by Measles Virus
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Display of Domain III from Dengue 2 Envelope Protein on HBsAg Virus-like Particles Vectored by Measles Virus

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Description

Dengue virus infects millions of people every year. Yet there is still no vaccine available to prevent it. Here we use a neutralizing epitope determinant on the dengue envelope (E) protein as an immunogen to be vectored by a measles virus (MV) vaccine. However the domain III (DIII) of the dengue 2 E protein is too small to be immunogenic by itself. In order for it to be displayed on a larger particle, it was inserted into the amino terminus of small hepatitis B surface antigen (HBsAg, S) coding sequence. To generate the recombinant MV vector and verify the efficiency of this concept, a reverse genetics system was used where the MV vectors express one or two additional transcription units to direct the assembly of hybrid HBsAg particles. Two types of recombinant measles virus were produced: pB(+)MVvac2(DIII-S,S)P and pB(+)MVvac2(DIII-S)N. Virus recovered from pB(+)MVvac2(DIII-S,S)P was viable. An ELISA assay was performed to demonstrate the expression and secretion of HBsAg. Supernatant from MVvac2(DIII-S,S)P infected cells confirmed that hybrid HBsAg-domain III particles with a density similar to traditional HBsAg particles were released. Characteristics of the subviral particle have been analyzed for the successful incorporation of domain III. The replication fitness of the recombinant MV was evaluated using multi-step growth kinetics and showed reduced replication fitness when compared to the parental strain MVvac2. This demonstrates that viral replication is hindered by the addition of the two inserts into MV genome. Further analysis of MVvac2(DIII-S)N is needed to justify immune response studies in a small animal model using both of the generated recombinant vectors.

Date Created
2014-05
Contributors
  • Harahap, Indira Saridewi (Author)
  • Reyes del Valle, Jorge (Thesis director)
  • Hogue, Brenda (Committee member)
  • Misra, Rajeev (Committee member)
  • Barrett, The Honors College (Contributor)
  • T. Denny Sanford School of Social and Family Dynamics (Contributor)
  • School of Human Evolution and Social Change (Contributor)
  • School of Life Sciences (Contributor)
Topical Subject
  • Vaccines
  • Virus-like Particles
  • Dengue Virus
Resource Type
Text
Extent
34 pages
Language
eng
Copyright Statement
In Copyright
Primary Member of
Barrett, The Honors College Thesis/Creative Project Collection
Series
Academic Year 2013-2014
Handle
https://hdl.handle.net/2286/R.I.23164
Level of coding
minimal
Cataloging Standards
asu1
System Created
  • 2017-10-30 02:50:57
System Modified
  • 2021-08-11 04:09:57
  •     
  • 1 year 9 months ago
Additional Formats
  • OAI Dublin Core
  • MODS XML

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