Publications by authors named "Yabin Meng"

Nanoparticle (NP)-mediated drug delivery systems are promising for treating various diseases. However, clinical translation has been delayed by a variety of limitations, such as weak drug loading, nonspecific drug leakage, lack of bioactivity, and short blood circulation. These issues are in part due to the unsatisfactory function of biomaterials for nanocarriers.

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Upon myocardial infarction (MI), activated cardiac fibroblasts (CFs) begin to remodel the myocardium, leading to cardiac fibrosis and even heart failure. No therapeutic approaches are currently available to prevent the development of MI-induced pathological fibrosis. Most pharmacological trials fail from poor local drug activity and side effects caused by systemic toxicity, largely due to the lack of a heart-targeted drug delivery system that is selective for activated CFs.

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Article Synopsis
  • Ferroptosis is a promising alternative strategy to tackle chemoresistance in acute myeloid leukemia (AML), but current treatment options are limited.
  • Researchers developed a novel nanomedicine called GCFN that responds to glutathione (GSH) and can induce ferroptosis while delivering chemotherapy.
  • GCFN not only caused cancer cell death by depleting GSH and targeting enzymes but also improved the efficacy of the drug paclitaxel, reducing side effects on normal cells and extending survival in AML mice.
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In recent decades, many poly(amino acid)s have been successfully prepared for various biomedical applications. To date, the synthesis and purification procedures used to generate these poly(amino acid)s have generally been complicated and costly. Here, a one-step synthesis strategy was developed and optimized via direct polymerization using thionyl chloride to easily and economically obtain poly(amino acid)s.

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Clinical application of cisplatin (CDDP) against various solid tumors is often limited due to its poor selectivity and severe side effect. Considering this, in our study, CDDP was incorporated in fluorescent PEG amine grafted aldehyde hyaluronic acid by imine bond and metal ion coordination bond linking and formed a complex, the complex was then self-assembled into nanoparticles in water simply. FT-IR, XRD, DLS and SEM analysis demonstrated that the nanoparticles were prepared successfully and exhibited a spherical structure with size ranged from 216.

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Aldehyde hyaluronic acid-cisplatin (A-HA-CDDP) complex nanoparticles were readily prepared, and CDDP was stably loaded into the core of the NPs through imine bond and coordinate bond linkages. The results show that the NPs were prepared successfully by a chemical complexation reaction rather than by physical mixing. Compared to many CDDP and HA complex nanoparticles evaluated in other studies, A-HA-CDDP NPs with imine and coordinate bonds between the A-HA and CDDP displayed better sustained release behavior and pH sensitivity.

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Cisplatin (CDDP) has been considered as one of the most effective anticancer drugs against cervical cancer, but the lack of selectivity of CDDP to tumor tissues often leads to serious toxic side effects. In this study, CDDP-incorporated Cy5.5-PEG- g-A-HA nanoparticles were prepared to endue CDDP the ability to selectively target tumors and fluorescence imaging in vivo.

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Herein, a dual drug-loaded hydrogel delivery system was constructed using aldehyded pullulan (A-Pul), ε-poly-l-lysine (ε-PL), and branched polyethylenimine (BPEI) in an aqueous solution via a Schiff base reaction. CDDP and DOX were loaded into the network of hydrogels for combination drug therapy. Gelation time changed from 40 s to 240 s when reaction solutions were stored at different temperatures.

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Multiresponsive and biocompatible self-healing ε-PL/A-Pul/BPEI hydrogels were prepared in aqueous solution by Schiff base reaction with aldehyded pullulan (A-Pul), ε-poly-l-lysine (ε-PL) and branched polyethyleneimine (BPEI) as materials. The imine bonds were rapidly cross-linked into a hydrogel network within 80 s. Scanning electron microscopy images showed that the hydrogels exhibited a cross-linked structure with the average pore size from 58 to 82 μm.

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