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- W2901445440 abstract "Apically targeted oral micelles exhibit highly efficient intestinal uptake and oral absorption Jinling Wang, Lifang Wang, Ying Li, Xiaohui Wang, Pengfei Tu School of Chinese Materia Medica, Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China Introduction: Polymeric micelles (PMs) hold promise for improving solubility and oral absorption of poorly soluble drugs. Unfortunately, the oral absorption of PMs is also limited by intestinal epithelium. To improve the oral delivery efficiency of micelles, transporter-mediated micelles could enhance the transport efficiency across the epithelial barrier, and they have attracted more attention. Methods: Peptide transporter 1 (PepT1)-mediated micelles (Val-PMs/Phe-PMs) were designed by grafting valine (or phenylalanine) onto the surface of curcumin (Cur)-loaded-D-α-tocopheryl polyethylene glycol 1000 succinate micelles (TP-PMs). The oral absorption mechanism and oral bioavailability were further investigated in vitro and in vivo. Results: The cellular study showed that Val-PMs/Phe-PMs had a high PepT1 affinity, resulting in a higher drug uptake and transcellular transport than TP-PMs. In rats, Val-PMs/Phe-PMs exhibited higher intestinal accumulation in the apical side of the intestinal epithelium than TP-PMs, promoting drug diffusion across epithelial barrier. The oral bioavailability of Cur was significantly improved by Val-PMs/Phe-PMs, which was about 10.50- and 3.40-fold greater than that of Cur-Sol and TP-PMs, respectively. Conclusion: PepT-1-mediated micelles, using PepT1 as a target on intestinal epithelium, have unique functions with intestine and prove promising for oral delivery of poorly water-soluble drugs. Keywords: PepT1, micelles, epithelial barrier, curcumin, oral delivery" @default.
- W2901445440 created "2018-11-29" @default.
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- W2901445440 date "2018-11-01" @default.
- W2901445440 modified "2023-09-27" @default.
- W2901445440 title "Apically targeted oral micelles exhibit highly efficient intestinal uptake and oral absorption" @default.
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- W2901445440 doi "https://doi.org/10.2147/ijn.s183796" @default.
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