Nanocurcumin is superior to native curcumin in preventing degenerative changes in Experimental Cerebral Malaria

Dende, Chaitanya and Meena, Jairam and Nagarajan, Perumal and Nagaraj, Viswanathan Arun and Panda, Amulya Kumar and Padmanaban, Govindarajan (2017) Nanocurcumin is superior to native curcumin in preventing degenerative changes in Experimental Cerebral Malaria. In: SCIENTIFIC REPORTS, 7 .

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Abstract

Curcumin has many pharmacological activities despite its poor bioavailability and in vivo stability. Here, we show that a nanoformulated curcumin (PLGA-curcumin) has better therapeutic index than native curcumin in preventing the onset of neurological symptoms and delaying the death of mice in experimental cerebral malaria. Oral PLGA-curcumin was at least as effective as native curcumin at a 15-fold lower concentration in preventing the breakdown of blood-brain barrier and inhibition of brain mRNAs for inflammatory cytokines, chemokine receptor CXCR3 and its ligand CXCL10, with an increase in the anti-inflammatory cytokine IL-10. This was also reflected in serum cytokine and chemokine levels. At equivalent concentrations, a single oral dose of PLGA-curcumin was more effective in inhibiting serum IFN gamma levels and enhancing IL-10 levels than native curcumin. Even at low concentrations, PLGA-curcumin was superior to native curcumin in inhibiting the sequestration of parasitized-RBCs and CD8(+) T cells in the brain. A single oral dose of 5 mg PLGA-curcumin containing 350 mu g of curcumin resulted in 3-4 fold higher concentration and prolonged presence of curcumin in the brain than that obtained with 5 mg of native curcumin, indicating better bioavailability of PLGA-curcumin. PLGA-curcumin has potential as an adjunct drug to treat human cerebral malaria.

Item Type:	Journal Article
Publication:	SCIENTIFIC REPORTS
Additional Information:	Copy right for this article belongs to the NATURE PUBLISHING GROUP, MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
Department/Centre:	Division of Biological Sciences > Biochemistry
Date Deposited:	23 Sep 2017 05:08
Last Modified:	23 Sep 2017 05:08
URI:	http://eprints.iisc.ac.in/id/eprint/57865

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