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Sustained-release nanoART formulation for the treatment of neuroAIDS

Authors Jayant RD, Atluri VSR, Agudelo M, Sagar V, Kaushik A, Nair M

Received 28 October 2014

Accepted for publication 13 November 2014

Published 4 February 2015 Volume 2015:10(1) Pages 1077—1093

DOI https://doi.org/10.2147/IJN.S76517

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Thomas J Webster

Rahul Dev Jayant, Venkata SR Atluri, Marisela Agudelo, Vidya Sagar, Ajeet Kaushik, Madhavan Nair

Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA

Abstract: A novel approach was developed for the coencapsulation of an anti-HIV drug (tenofovir) and a latency-breaking agent (vorinostat), using magnetically guided layer-by-layer (LbL) assembled nanocarriers for the treatment of neuroAIDS. Ultrasmall iron oxide (Fe3O4) nanoparticles (10±3 nm) were synthesized and characterized. The LbL technique was used to achieve a sustained release profile, and application of 2 bilayers ([tenofovir+dextran sulphate]2+vorinostat) to magnetic nanoparticles resulted in a 2.8 times increase in drug (tenofovir) loading and also resulted in an increase in the drug release period by 30-fold, with 100% drug release in sustained manner over a period of 5 days with the simultaneous stimulation of latent HIV expression. Nanoformulation showed a good blood–brain barrier transmigration ability (37.95%±1.5%) with good in vitro antiviral efficacy (~33% reduction of p24 level) over a period of 5 days after HIV infection in primary human astrocytes, with good cell viability (>90%). Hence, LbL arrangements of drugs on magnetic nanoparticles provides sustained release and, therefore, may improve the patient’s adherence to therapy and lead to better compliance.

Keywords: layer-by-layer, magnetic nanocarriers, blood–brain barriers, neuroAIDS, sustained release, anti-HIV drug, latency

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