Characterization of LXR-40% ApoA1 PA encapsulation. (a) Cryo-TEM shows formation
of nanofibers similar to those of PA without encapsulated LXR agonist. (b)
LXR-encapsulation by 40% ApoA1 PA resulted in a more β-sheet-like CD
spectrum. (c) Tryptophan fluorescence quenching of PA occurred upon
encapsulation of LXR agonist. (d) Neither the PA, 4F, LXR, nor the LXR-PA
treatments increased percent cholesterol efflux above the control (DMEM) at t =
1 h, but LXR-40% ApoA1 PA did induce significant (*p < 0.05) efflux above
the control, 4F, 40% ApoA1 PA, Diluent PA, and LXR at t = 4 h. (e) Effect of PA,
peptide, and LXR treatments upon macrophage cell viability in vitro. * indicates
p<0.05 vs. LXR-40% ApoA1 PA and LXR.