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PURPOSE Our objective was to report preclinical studies on a biodegradable long-acting contraceptive implant. METHODS A poly (epsilon-caprolactone) (PCL)/pluronic F68 (F68) compound was used to construct an implant, which was filled with dry levonorgestrel (LNG) powder (PCL/F68/LNG). LNG release rate, contraceptive efficacy and polymer degradation were(More)
Our study investigated poly(lactic-co-glycolic acid) (PLGA) as protein delivery vehicles encapsulate CTLA-4-antibody (anti-CTLA-4) which is essential for CD4+CD25+Treg cells suppressive function exposing superior potential for inhibiting endometriosis progress in mouse model than single anti-CTLA-4. Anti-CTLA-4 loaded PLGA combined to ligands CTLA-4 in(More)
The objective of this study was to prepare a novel mifepristone-loaded PCL/Pluronic F68 implant to achieve long-term treatment of endometriosis. PCL/Pluronic F68 compound (90/10, w/w) with viscosity average molecular weight of 65,000 was successfully synthesized. The end-capped Pluronic F68 was incorporated in PCL matrixes as molecular dispersion without(More)
The purpose of this study was to develop polymeric nanoscale drug-delivery system (nano-DDS) for paclitaxel (PTX) from poly(ɛ-caprolactone)-poly(ethylene glycol)-poly(ɛ-caprolactone) (PCL-PEG-PCL, PCEC) copolymers, intended to be intravenously administered, able to improve the therapeutic efficacy of the drug and devoid of the adverse effects of Cremophor(More)
Star-shaped block copolymers based on poly(D,L-lactide-co-glycolide) (PLGA) and poly(ethylene glycol) (PEG) (st-PLGA-PEG) were synthesized with structural variation on arm numbers in order to investigate the relationship between the arm numbers of st-PLGA-PEG copolymers and their micelle properties. st-PLGA-PEG copolymers with arm numbers 3, 4 and 6 were(More)
A paclitaxel-loaded poly (epsilon]-caprolactone)(PCL)/pluronic F68 (F68) nanoparticle formulation was prepared as an intratumoral delivery system to assess its potential for future neoadjuvant chemotherapy application in the treatment of breast cancer. Paclitaxel-loaded nanoparticles were prepared by a solvent evaporation method using the self-synthesized(More)
PURPOSE To investigate the anchoring of plasmid DNA/anti-DNA antibody/cationic lipid tri-complex (DAC micelles) onto bisphosphonate-modified 316 L coronary stents for cardiovascular site-specific gene delivery. METHODS Stents were first modified with polyallylamine bisphosphonate (PAA-BP), thereby enabling the retention of a PAA-BP molecular monolayer(More)
The real-time controlling and tracking of the evolution and status of the hydrogel are important challenges for accurate and precise assessments. In this article, a visible and controllable hydrogel nanocomposites system for photo response was designed and developed based on a thermosensitive porphyrin-poly(ethylene glycol)/α-cyclodextrin hydrogel loaded(More)
Here, we investigated the use of hyaluronic acid (HA)-decorated cationic lipid-poly(lactide-co-glycolide) acid (PLGA) hybrid nanoparticles (HA-DOTAP-PLGA NPs) as vaccine delivery vehicles, which were originally developed for the cytosolic delivery of genes. Our results demonstrated that after the NPs uptake by dendritic cells (DCs), some of the antigens(More)