Port, we show that soluble mimics of CD4 inhibit HIV-1 infection by prematurely triggering the viral envelope glycoproteins. The unstable activated state of the virus lasts only a few minutes, after which the virus loses the ability to infect cells. This novel strategy for inhibition may be generally applicable to other viruses besides HIV-1, some of which are also activated by binding to their re
Port, we show that soluble mimics of CD4 inhibit HIV-1 infection by prematurely triggering the viral envelope glycoproteins. The unstable activated state of the virus lasts only a few minutes, after which the virus loses the ability to infect cells. This novel strategy for inhibition may be generally applicable to other viruses besides HIV-1, some of which are also activated by binding to their re
Coproteins [1]. Binding of gp120 to the receptor, CD4, on the target cell surface induces major conformational changes in the envelope glycoproteins [2]. These changes allow gp120 to bind the viral coreceptor, either CXCR4 or CCR5 [3?]. CD4 binding also induces the formation of a gp41 pre-hairpin intermediate, in which three hydrophobic grooves on the surface of a coiled coil formed by the heptad
To current convention [46]). C34-Ig was produced and purified as previously described [47]. The CD4-Ig fusion protein consists of the first two N-terminal domains of the CD4 molecule and the Fc region of human IgG1. Purification was carried out as described for the C34-Ig molecule [47].mechanism of sCD4 neutralization [17,18]. Resistance to sCD4 may thus arise by a decreased affinity of the envelo
D role functioning (perfect score = 100) favoured the CXT arm (median change HAART = 0, CXT = +17; p=0.011). Improvement in pain (perfect score = 0, median change HAART = -16.7, CXT = -33.3; p=0.1) and overall QOL (median change HAART = 12.5, CXT = 16.7; p=0.08) were also greater in the CXT arm. Comparisons between arms were not statistically significant.NIH-PA Author Manuscript NIH-PA Author Manu
To current convention [46]). C34-Ig was produced and purified as previously described [47]. The CD4-Ig fusion protein consists of the first two N-terminal domains of the CD4 molecule and the Fc region of human IgG1. Purification was carried out as described for the C34-Ig molecule [47].mechanism of sCD4 neutralization [17,18]. Resistance to sCD4 may thus arise by a decreased affinity of the envelo
To current convention [46]). C34-Ig was produced and purified as previously described [47]. The CD4-Ig fusion protein consists of the first two N-terminal domains of the CD4 molecule and the Fc region of human IgG1. Purification was carried out as described for the C34-Ig molecule [47].mechanism of sCD4 neutralization [17,18]. Resistance to sCD4 may thus arise by a decreased affinity of the envelo
Ir Immune Defic Syndr. Author manuscript; available in PMC 2013 June 01.Mosam et al.Pagena e, 89 had advanced (but not immediately life threatening) KS and 58 had CD4