Figure 7
From: Immortal Activated Human Hepatic Stellate Cells Generated by Ectopic Telomerase Expression

Telomerase-positive HSCs take up retinol. Telomerase-positive HSCs from clone 14 were cultured in regular growth medium containing 1.5 μm retinol. The fluorescence of vitamin A in the cytoplasm of HSCs was captured by fluorescence microscopy at a wavelength of 330 nm after an incubation time of 14 days. As control, HSCs were incubated with an equivalent amount of vehicle (ethanol); (left panels: phase microscopy; right panels: fluorescence microscopy; original magnification, × 200).