High throughput screening for the enhancement of adeno-associated virus type 2 transduction
by Wallen, Alexis Jessica, Ph.D., UNIVERSITY OF PENNSYLVANIA, 2011, 138 pages; 3485741

Abstract:

Adeno-associated virus (AAV) is a promising vector for human gene therapy. Although more effective than non-viral vectors, AAV still requires improvement in efficacy in order to become a successful gene therapy vector. With this in mind, we have sought to identify and examine identified enhancers of adeno-associated virus type 2 (AAV2) transduction. Using a high throughput screening system with recombinant AAV2 carrying the luciferase reporter gene (AAV2-Luc), we found siRNA sequences and chemical compounds which increase AAV2 reporter gene expression. We specifically identified a hexamer seed region 5’-UGUUUC-3’ which facilitated AAV2 transduction. Chemical compound enhancers included ellagic acid, 1,10-phenanthroline, EGFR tyrosine kinase inhibitors, nucleoside analogs, and DNA alkylating agents. Although several of these compounds, such as EGFR tyrosine kinase inhibitors and DNA alkylating agents, were known enhancers of AAV transduction, compounds such as ellagic acid and 1,10-phenanthroline were newly identified as facilitating AAV2 transduction. After identifying these enhancers, we have further sought to understand a mechanistic basis for them through studies which individually quantified enhancement at stages including the virus-receptor interaction, the viral DNA introduction into the cell, reporter gene RNA transcription, and the production of protein from the transgene. The identification of siRNAs and chemical compounds which enhance transduction can lead to a better understanding of AAV2 biology and may provide a foundation for the engineering of novel AAV formulations, delivery systems, or vectors.

 
AdviserScott L. Diamond
SchoolUNIVERSITY OF PENNSYLVANIA
SourceDAI/B 73-03, p. , Dec 2011
Source TypeDissertation
SubjectsBiomedical engineering; Chemical engineering; Virology
Publication Number3485741
Adobe PDF Access the complete dissertation:
 

» Find an electronic copy at your library.
  Use the link below to access a full citation record of this graduate work:
  http://gateway.proquest.com/openurl%3furl_ver=Z39.88-2004%26res_dat=xri:pqdiss%26rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation%26rft_dat=xri:pqdiss:3485741
  If your library subscribes to the ProQuest Dissertations & Theses (PQDT) database, you may be entitled to a free electronic version of this graduate work. If not, you will have the option to purchase one, and access a 24 page preview for free (if available).

About ProQuest Dissertations & Theses
With over 2.3 million records, the ProQuest Dissertations & Theses (PQDT) database is the most comprehensive collection of dissertations and theses in the world. It is the database of record for graduate research.

The database includes citations of graduate works ranging from the first U.S. dissertation, accepted in 1861, to those accepted as recently as last semester. Of the 2.3 million graduate works included in the database, ProQuest offers more than 1.9 million in full text formats. Of those, over 860,000 are available in PDF format. More than 60,000 dissertations and theses are added to the database each year.

If you have questions, please feel free to visit the ProQuest Web site - http://www.proquest.com - or call ProQuest Hotline Customer Support at 1-800-521-3042.