Fig. (5) Separation of HUVEC and HU-ATTAK prevents the growth of HU-ATTAK. HU-ATTAK and HUVEC were separated with a micropore membrane and cultured. As a control, HUATTAK cells were cultured with HUVEC without a membrane. The numbers of viable cells in the three wells were counted on days 4, 7, 10, 13 and 16. This is a representative of two independent experiments. Cell numbers are plotted using a log scale.