From Formulation to Function: Developing Liposomal Vaccine Delivery Systems

Yvonne Perrie, Malou Henriksen-Lacey, M Jubair Hussain, Randip Kaur, Sarah E McNeil

Medicines Research Unit, Aston University, Birmingham, B4 7ET, UK


A range of particulate systems have been proposed as potential adjuvants for enhancing the delivery and efficacy of sub-unit antigens, however comparative studies using the same antigen in the same model are limited. Within our studies we have compared polymer based microsphere systems, lipid based systems and non-ionic systems. Our results suggest that cationic liposomes are superior in terms of adjuvant action for a TB sub-unit antigen and that the combination of a cationic lipid and an immunostimulatory lipid gave the highest immune responses.

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