title: Inhibition of HIV-1 group M and O isolates by fusion inhibitors.
abstract: We examined the susceptibility of HIV-1 group M and O isolates to the fusion inhibitors T-20 and T-1249. Unexpectedly, HIV-1 O isolates were as sensitive as group M viruses to inhibition by T-20 but were usually less susceptible to T-1249. Our data suggest that T-20 has broad antiretroviral activity and would be effective in individuals with HIV-1 O infection. However, polymorphisms in gp41 might affect the sensitivity of HIV-1 O to second-generation fusion inhibitors.
authors.affiliation: Department of Virology, University of Ulm, Albert Einstein Allee 11, 89081 Ulm, Germany.
authors.forename: Raghavan
authors.initials: R
authors.lastname: Chinnadurai
authors.forename: Jan
authors.initials: J
authors.lastname: Münch
authors.forename: Matthias T
authors.initials: MT
authors.lastname: Dittmar
authors.forename: Frank
authors.initials: F
authors.lastname: Kirchhoff
mesh_terms: D024921:Drug Resistance, Multiple, Viral; D000077560:Enfuvirtide; D015700:HIV Envelope Protein gp41 / Q000627:therapeutic use; D023581:HIV Fusion Inhibitors / Q000627:therapeutic use*; D015658:HIV Infections / Q000188:drug therapy*; D015497:HIV-1 / Q000187:drug effects*; D006801:Humans; D008826:Microbial Sensitivity Tests; D010446:Peptide Fragments / Q000627:therapeutic use
chemical_list: D015700:HIV Envelope Protein gp41; D023581:HIV Fusion Inhibitors; D010446:Peptide Fragments; C474741:peptide T1249; D000077560:Enfuvirtide