Figure 3

Pre-incubation of soluble Siglec-7 protein with HIV-1 virus increases the infection of CD4^posT cells. Histogram bar graph showing the copies/ml of HIV-RNA transcripts in the cell supernatant of PM1 cell line (A-B) and CD4^pos primary T cells (C-D) infected with IIIB (A-C) or BaL (B-D) viral strains pre-incubated or not with either NKp44 or Siglec-7 fusion proteins. Data are representative of 3 independent experiments (mean ± SD).