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- W2909969804 abstract "The poor capability of drugs to permeate through the blood–brain barrier (BBB) and further release inside glioma greatly limits the curative effects of glioma chemotherapies. In this study, we prepared angiopep-2-conjugated liposome-silica hybrid nanovehicles for targeted delivery and increased the permeation of arsenic trioxide (ATO) in glioma. Polyacrylic acid (PAA) was grafted on mesoporous silica nanoparticles (MSN) for pH-sensitive release and supporting the lipid membrane. The prepared “core–shell” nanovehicles (ANG-LP-PAA-MSN) were characterized with uniform size, high drug loading efficiency (8.19 ± 0.51%), and superior pH-sensitive release feature. From the experiments, the enhanced targeted delivery of ATO by ANG-LP-PAA-MSN (ANG-LP-PAA-MSN@ATO) was evidenced by the improvement of transport, enhanced cellular uptake, and apoptosis in vitro. In addition, the pharmacokinetic study was creatively carried out through the blood–glioma synchronous microdialysis and revealed that the half-life (t1/2) of blood and glioma tissue in the ANG-LP-PAA-MSN@ATO treatment group was extended by 1.65 and 2.34 times compared with the ATO solution group (ATO-Sol). The targeting efficiency of ANG-LP-PAA-MSN@ATO (24.96%) was dramatically stronger than that of the ATO-Sol (5.94%). Importantly, ANG-LP-PAA-MSN@ATO had a higher accumulation (4.6 ± 2.6% ID per g) in tumor tissues and showed a better therapeutic efficacy in intracranial C6 glioma bearing rats. Taken together, the blood–glioma synchronous microdialysis was successful used for the pharmacokinetic study and real-time monitoring of drug concentrations in blood and glioma; ANG-LP-PAA-MSN could be a promising targeted drug delivery system for glioma therapy." @default.
- W2909969804 created "2019-01-25" @default.
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- W2909969804 date "2019-01-08" @default.
- W2909969804 modified "2023-10-16" @default.
- W2909969804 title "Angiopep-2-Conjugated “Core–Shell” Hybrid Nanovehicles for Targeted and pH-Triggered Delivery of Arsenic Trioxide into Glioma" @default.
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- W2909969804 doi "https://doi.org/10.1021/acs.molpharmaceut.8b01056" @default.
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