Farnesal-loaded pH-sensitive polymeric micelles provided effective prevention and treatment on dental caries.

Journal of Nanobiotechnology
Youping YiZhirong Zhong

Abstract

Farnesol is a sesquiterpene from propolis and citrus fruit that shows promising anti-bacterial activity for caries treatment and prevention, but its hydrophobicity limits the clinical application. We aimed to develop the novel polymeric micelles (PMs) containing a kind of derivative of farnesol and a ligand of pyrophosphate (PPi) that mediated PMs to adhere tightly with the tooth enamel. Farnesal (Far) was derived from farnesol and successfully linked to PEG via an acid-labile hydrazone bond to form PEG-hyd-Far, which was then conjugated to PPi and loaded into PMs to form the aimed novel drug delivery system, PPi-Far-PMs. The in vitro test about the binding of PPi-Far-PMs to hydroxyapatite showed that PPi-Far-PMs could bind rapidly to hydroxyapatite and quickly release Far under the acidic conditions. Results from the mechanical testing and the micro-computed tomography indicated that PPi-Far-PMs could restore the microarchitecture of teeth with caries. Moreover, PPi-Far-PMs diminished the incidence and severity of smooth and sulcal surface caries in rats that were infected with Streptococcus mutans while being fed with a high-sucrose diet. The anti-caries efficacy of free Far can be improved significantly by PPi-Far-PMs throug...Continue Reading

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Citations

Oct 27, 2021·Advanced Drug Delivery Reviews·Sajid AsgharThierry F Vandamme

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Methods Mentioned

BETA
NMR
transmission electron microscopy
scanning electron microscopy
dynamic light scattering
fluorescence

Software Mentioned

GraphPad
GraphPad Prism

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