Abstract
Moxifloxacin (MOX) is a Mycobacterium tuberculosis DNA gyrase inhibitor. Due to its intense hydrophilicity, MOX is cleared from the body within 24 h and required for repetitive doses which may then result in hepatotoxicity and acquisition of MOX resistant-TB, related with its use. To overcome the aforementioned limitations, the current study aimed to develop PLGA nanoparticles (PLGA NPs), to act as an efficient carrier for controlled delivery of MOX. To achieve a substantial extension in blood circulation, a combined design, affixation of polyethylene glycol (PEG) to MOX-PLGA NPs and adsorption of water-soluble chitosan (WSC) (cationic deacetylated chitin) to particle surface, was rose for surface modification of NPs. Surface modified NPs (MOX-PEG-WSC NPs) were prepared to provide controlled delivery and circulate in the bloodstream for an extended period of time, thus minimizing dosing frequency. In vivo pharmacokinetic and in vivo biodistribution following oral administration were investigated. NP surface charge was closed to neutral +4.76 mV and significantly affected by the WSC coating. MOX-PEG-WSC NPs presented striking prolongation in blood circulation, reduced protein binding, and long-drawn-out the blood circulation half-life with resultant reduced liver sequestration vis-à-vis MOX-PLGA NPs. The studies, therefore, indicate the successful formulation development of MOX-PEG-WSC NPs that showed sustained release behavior from nanoparticles which indicates low frequency of dosing.
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Acknowledgments
The authors would like to thank Dr. Shobha Rani R. H, principal of Al-Ameen College of Pharmacy for her advice and support to carry out this research work. The authors are gratefully grateful to Cipla private Ltd, Sikkim, India for providing the gift sample of moxifloxacin. We are also grateful to M/s Boehringer Ingelheim Pharma GmbH & Co. KG (Binger Street, Ingelheim, Germany) for providing the gift sample of PLGA.
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All animal investigations were performed as per requisite protocol approved by the Institutional Animal Ethics Committee [Letter No. AACP/IAEC/Jun-2014-01]. The committee is duly approved for the purpose of control and supervision of experiments on the animals by the government of India.
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The authors declare that they have no conflicts of interest.
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Mustafa, S., Devi, V.K. & Pai, R.S. Effect of PEG and water-soluble chitosan coating on moxifloxacin-loaded PLGA long-circulating nanoparticles. Drug Deliv. and Transl. Res. 7, 27–36 (2017). https://doi.org/10.1007/s13346-016-0326-7
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DOI: https://doi.org/10.1007/s13346-016-0326-7