Figure 1. Liposome composition parameters that influence immune responses.
Biophysical formulation parameters that influence adjuvanticity of liposomal vaccines include (A) vesicle size, (B) lamellarity, (C) membrane surface charge, (D) bilayer fluidity (as examples, cholesterol-rich liquid ordered and cholesterol-free liquid crystal phases are shown), (E) propensity to undergo lamellar-hexagonal bilayer phase transition, and (F) presence of immunosimulatory lipids.