“In the present study we demonstrate that heparin largely reduces Suc-HSA activity on HIV replication in the same concentration in which if affects binding of Suc-HSA to the envelope protein gp120 and in particular its V3 domain.”
“In the same concentration range, heparin reduced binding of Suc-HSA to MT4 cells, another HTLV-I-transformed cell line.”
“It is concluded that heparin can displace Suc-HSA from its binding sites on hybrid lymphoid cells as well as on HIV-1 particles.”
“The antagonistic effect by heparin was observed both in the case that heparin was added prior to or after addition of Suc-HSA to the test system.”
“The fact that heparin and heparin degradation products antagonize Suc-HSA without having a significant anti-HIV-1 effect indicates that the anticoagulant acts as a relatively weak partial inhibitor.”