10.02.2013 Views

Immunotherapy for Infectious Diseases

Immunotherapy for Infectious Diseases

Immunotherapy for Infectious Diseases

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

240 Dornburg and Pomerantz<br />

Fig. 2. Overview of possible genetic targets to block HIV-1 replication. The different<br />

approaches are described in detail in the text.<br />

GENETIC ANTIVIRALS TO BLOCK HIV-1 REPLICATION<br />

Protein-Based Inhibitors<br />

Transdominant Negative Mutant Proteins<br />

Replication of the HIV-1 virus depends on several regulatory proteins. Replication,<br />

however, is greatly impaired when certain mutant <strong>for</strong>ms of such proteins are present.<br />

Thus, mutant viral proteins have been used to block HIV-1 replication. Transdominant<br />

(TD) negative mutants still bind to their targets but are unable to per<strong>for</strong>m their actual<br />

function. They compete with the corresponding native, wild-type protein inside the cell<br />

and greatly reduce virus replication, especially when they are expressed from strong<br />

promoters (e.g., the cytomegalovirus immediate early promoter [CMV-IE]) (1).

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!