Abstract

Enfurvitide (T-20) inhibits one step of the fusion process between the HIV and the CD4 cell. Fusion, however, is only one part of a very complex process known as entry. Several novel antiretroviral classes and agents have been identified that could potentially inhibit different steps of this entry process. Candidates for drug development include chemokine receptor antagonists, CD4 receptor blockers, fusion inhibitors such as T-20, and antibodies against viral particles involved in the entry process. Among these classes, the chemokine receptor antagonists have yielded particularly promising results in early studies. Chemokine receptors are coreceptors that are required for HIV to bind to target cells. If the viral envelope surface glycoprotein gp120 does …

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