Comparative uptake and intracellular localization (mitochondria
vs. lysosomes) of PSs 1, 3, 5 formulated
either in Tween80 or Pluronic127F in UMUC3 and T24 cells. The uptake PSs in
Tween (A) and Pluronic (B) after 24 h incubation, and
the fluorescence was measured using a CARY fluorimeter. The degree of
fluorescence in each cell was directly compared as a measure of uptake. The
fluorescence of each cell was measured using an Image Stream. Simultaneously,
cells were stained with lysosphere green and mitotracker red to determine the
subcellular localization specificity the PSs: (C) PSs 1,
3 & 5 Tween80 formulation in UMUC3, (D)
PS 1, 3 & 5 Tween formulation in T24,
(E) PSs 1, 3 & 5 Pluronic
formulation in UMUC3 and (F) PS 1, 3 &
5 Pluronic formulation in T 24 cell line. The higher bright
detail similarity score to a particular site reflects stronger overlap of the PS
fluorescence to that site, either lysosomes or the mitochondria.