Figure 6. Effects of recombinant N-SLIT2 protein on the attachment of human retinal pigment epithelium cells. Cell attachment was assessed after 6 h of incubation and subsequent MTT assay. Values are reported as mean±SD of four independent experiments. Asterisks denote values significantly different from those of cells treated with recombinant N-SLIT2 protein compared to control cells (p<0.01). The absorbance of the control cells was set to 1.