Figure 1.
Lymphocyte aggregation induced by HgCl2. T lymphoblasts, generated from human PBMC as explained in the Materials and Methods, were incubated in control medium (a, c), or in medium containing 5 µm HgCl2 (b, d). Cells were preincubated in the presence (c, d) or absence (a, b) of LFA1/2 (anti-CD11a) and 84H10 (anti-CD54). Photographs were taken after 4 hr of incubation.