The goal of this proposed research is to investigate a strategy to block the entry of HIV into cells by amplifying the potency of known inhibitors using a polyvalent ligand presentation approach. I propose to create polymer scaffolds functionalized with known peptide inhibitors of HIV fusion, to exploit an enhanced avidity based on multivalent binding, and to compare the ability of these systems in preventing fusion with that of corresponding concentrations of the active ligand in monovalent form. A successful outcome of this work would be a demonstration that a ligand (or ligands) attached to a polymer is more successful in preventing cell fusion in a mammalian cell model of virus-cell fusion than is the same ligand (at the same equivalent concentration) in monomeric form. The first goal of this project is to develop extremely potent polyvalent inhibitors of HIV entry that may enable novel therapeutic regimens for the treatment of HIV infection. The second goal of this project is to develop cheap polyvalent inhibitors of HIV entry that are at least as potent as current, cost-prohibitive therapies, to enable their wider use. ? ?

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Postdoctoral Individual National Research Service Award (F32)
Project #
5F32AI068605-02
Application #
7187374
Study Section
AIDS Discovery and Development of Therapeutics Study Section (ADDT)
Program Officer
Conley, Tony J
Project Start
2006-01-04
Project End
2008-01-03
Budget Start
2007-01-04
Budget End
2008-01-03
Support Year
2
Fiscal Year
2007
Total Cost
$49,646
Indirect Cost
Name
Harvard University
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
082359691
City
Cambridge
State
MA
Country
United States
Zip Code
02138
Mack, Eric T; Snyder, Phillip W; Perez-Castillejos, Raquel et al. (2012) Dependence of avidity on linker length for a bivalent ligand-bivalent receptor model system. J Am Chem Soc 134:333-45
Krishnamurthy, Vijay M; Bohall, Brooks R; Kim, Chu-Young et al. (2007) Thermodynamic parameters for the association of fluorinated benzenesulfonamides with bovine carbonic anhydrase II. Chem Asian J 2:94-105