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Indocyanine Green Liposomes for Diagnosis and Therapeutic Monitoring of Cerebral Malaria.


ABSTRACT: Cerebral malaria (CM) is a major cause of death of Plasmodium falciparum infection. Misdiagnosis of CM often leads to treatment delay and mortality. Conventional brain imaging technologies are rarely applicable in endemic areas. Here we address the unmet need for a simple, non-invasive imaging methodology for early diagnosis of CM. This study presents the diagnostic and therapeutic monitoring using liposomes containing the FDA-approved fluorescent dye indocyanine green (ICG) in a CM murine model. Increased emission intensity of liposomal ICG was demonstrated in comparison with free ICG. The Liposomal ICG's emission was greater in the brains of the infected mice compared to naïve mice and drug treated mice (where CM was prevented). Histological analyses suggest that the accumulation of liposomal ICG in the cerebral vasculature is due to extensive uptake mediated by activated phagocytes. Overall, liposomal ICG offers a valuable diagnostic tool and a biomarker for effectiveness of CM treatment, as well as other diseases that involve inflammation and blood vessel occlusion.

SUBMITTER: Portnoy E 

PROVIDER: S-EPMC4729766 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Indocyanine Green Liposomes for Diagnosis and Therapeutic Monitoring of Cerebral Malaria.

Portnoy Emma E   Vakruk Natalia N   Bishara Ameer A   Shmuel Miriam M   Magdassi Shlomo S   Golenser Jacob J   Eyal Sara S  

Theranostics 20160101 2


Cerebral malaria (CM) is a major cause of death of Plasmodium falciparum infection. Misdiagnosis of CM often leads to treatment delay and mortality. Conventional brain imaging technologies are rarely applicable in endemic areas. Here we address the unmet need for a simple, non-invasive imaging methodology for early diagnosis of CM. This study presents the diagnostic and therapeutic monitoring using liposomes containing the FDA-approved fluorescent dye indocyanine green (ICG) in a CM murine model  ...[more]

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