Figure 4. Proliferation and cellular viability of h-CSFs with or without gene transfer. A: Time-dependent growth profile of normal, naked-vector transfected, and Id3-mCherry transfected human stromal corneal fibroblast (h-CSF) cultures. B: Time-dependent cellular viability of normal, naked-vector transfected, and Id3-mCherry transfected h-CSF cultures. No statistically significant differences in the proliferation rate or cellular viability were observed between the Id3-mCherry transfected h-CSFs and the control groups (normal and naked-vector transfected h-CSFs).