Fig. 4.
Macrophage tropism of HIV-1 gp160s amplified from anatomically discrete tissues. Patient/tissue-specific gp160s were expressed on HIV-1 pseudovirions. env+ pseudovirions were titrated on HeLa TZM-BL cells and on primary macrophages. Macrophage infectivity is expressed as a percentage of HeLa TZM-BL cell infectivity.