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Preparation, characterization and toxicity evaluation of amphotericin B loaded MPEG-PCL micelles and its application for buccal tablets

  • Applied microbial and cell physiology
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Abstract

Oral candidiasis or thrush is a fungal infection due to Candida albicans, causing discomfort in areas inside mouth or tongue. The clinical application of antifungal reagent amphotericin B (AMB), which is believed to offer a better treatment for oral candidiasis, is greatly compromised by its toxicities (mainly nephrotoxicity) and poor solubility. In order to overcome these issues, we characterized AMB-loaded MPEG-PCL micelles in vitro and in vivo. In addition, the antifungal activities of AMB/MPEG-PCL micelles-loaded buccal tablet were also evaluated in vitro. We found that micelles system could significantly improve the solubility of AMB yet reduce the overall toxicity, while the buccal tablet system is capable to suppress C. albicans biofilm formation. Furthermore, the toxicity of the buccal tablet system is also reduced compared with other standard preparations. Therefore, the prepared tablet with AMB-loaded MPEG-PCL micelles as oral topical preparations has the potential to improve current treatment of superficial oral C. albicans infections.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 81402925, 81470549, 81400233, and 81270347). The authors would like to thank the editor for editing the manuscript and the anonymous reviewers for their detailed and helpful comments.

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Correspondence to Jiye Zhang or Rong Lin.

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The authors state that the animal experimental protocol was in accordance with the National Institutes of Health Guide for Care and Use of Laboratory Animals and was approved by the Institutional Animal Care Committee of Xi’an Jiaotong University.

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The authors declare that they have no competing conflict of interest.

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Supplementary data (the details of experimental methods, Tables and Figures associated with this article) are available in the online version of this article. (PDF 573 kb)

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Zhang, P., Yang, X., He, Y. et al. Preparation, characterization and toxicity evaluation of amphotericin B loaded MPEG-PCL micelles and its application for buccal tablets. Appl Microbiol Biotechnol 101, 7357–7370 (2017). https://doi.org/10.1007/s00253-017-8463-6

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  • DOI: https://doi.org/10.1007/s00253-017-8463-6

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