This proposal describes the use of recombinant DNA technology for the study of poliovirus, an RNA virus. Recently it was found that a complete cloned cDNA copy of the poliovirus genome is infectious in mammalian cells. The infectious cDNA clone will be used to perform genetic manipulations with poliovirus which were not previously possible. Initially two general methods for employing the cDNA clone to study poliovirus will be developed, and these methods will be used to address several specific problems in poliovirus replication. One method for performing genetic studies will be to specifically mutagenize the cDNA, introduce the altered cDNA into cultured mammalian cells, and observe the phenotype. To employ this approach we will search for ways of increasing the specific infectivity of the cDNA clone so that transfectants may be examined biochemically. A second general method involves the construction of """"""""permissive"""""""" cell lines which produce poliovirus proteins. These cell lines may be used to propagate mutant viruses into which deletions have been inserted by manipulation of the infectious cDNA. These two general methodologies will be used to study aspects of poliovirus replication which include (1) the mechanism by which the cDNA clone is infectious in mammalian cells; (2) the study of defective interfering particles through introduction of specific deletions in the capsid region; (3) the ability of cell lines producing poliovirus proteins to complement poliovirus mutants, and (4) the function of protein NCVPX. The results will contribute to our goal of obtaining a complete description of the replication of a human pathogen.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Project (R01)
Project #
5R01AI020017-03
Application #
3129497
Study Section
Experimental Virology Study Section (EVR)
Project Start
1983-04-01
Project End
1986-03-31
Budget Start
1985-04-01
Budget End
1986-03-31
Support Year
3
Fiscal Year
1985
Total Cost
Indirect Cost
Name
Columbia University (N.Y.)
Department
Type
Schools of Medicine
DUNS #
064931884
City
New York
State
NY
Country
United States
Zip Code
10027
Kim, Melissa Stewart; Racaniello, Vincent R (2007) Enterovirus 70 receptor utilization is controlled by capsid residues that also regulate host range and cytopathogenicity. J Virol 81:8648-55
Kauder, Steven E; Racaniello, Vincent R (2004) Poliovirus tropism and attenuation are determined after internal ribosome entry. J Clin Invest 113:1743-53
Brown, David M; Kauder, Steven E; Cornell, Christopher T et al. (2004) Cell-dependent role for the poliovirus 3' noncoding region in positive-strand RNA synthesis. J Virol 78:1344-51
Tsang, S K; McDermott, B M; Racaniello, V R et al. (2001) Kinetic analysis of the effect of poliovirus receptor on viral uncoating: the receptor as a catalyst. J Virol 75:4984-9
McDermott Jr, B M; Rux, A H; Eisenberg, R J et al. (2000) Two distinct binding affinities of poliovirus for its cellular receptor. J Biol Chem 275:23089-96
Dove, A W; Racaniello, V R (2000) An antiviral compound that blocks structural transitions of poliovirus prevents receptor binding at low temperatures. J Virol 74:3929-31
Belnap, D M; McDermott Jr, B M; Filman, D J et al. (2000) Three-dimensional structure of poliovirus receptor bound to poliovirus. Proc Natl Acad Sci U S A 97:73-8
Zhang, S; Racaniello, V R (1997) Persistent echovirus infection of mouse cells expressing the viral receptor VLA-2. Virology 235:293-301
Dove, A W; Racaniello, V R (1997) Cold-adapted poliovirus mutants bypass a postentry replication block. J Virol 71:4728-35
Liao, S; Racaniello, V (1997) Allele-specific adaptation of poliovirus VP1 B-C loop variants to mutant cell receptors. J Virol 71:9770-7

Showing the most recent 10 out of 35 publications