Chitosan-coated C-phycocyanin Liposome for Extending the Neuroprotective Time Window Against Ischemic Brain Stroke

The time window for neuroprotection during ischemic brain stroke is short, and hence, development of neuroprotectants is critical to extend this time window. This study sought to verify if muco-adhesive chitosan coating improves the neuroprotective potential of the pre-proven C-Phycocyanin-pertaining liposome (C-Pc liposome). The use of chitosan-coated liposomes extended the neuroprotective time window by 6 h after occlusion, and further improved the neuroprotection efficiency of the C-Pc liposome in a rat Middle Cerebral Artery Occlusion (MCAO) model. Beneficial changes in mRNA expressions of antioxidants, inflammatory cytokines and glia scar proteoglycans were evident in the C-Pc liposomes. In addition, in the cultured astrocytes, the chitosan- coated C-Pc liposome expressed anti-oxidative activity without cytotoxicity.