The effect of hyaluronate on lysosomal enzyme activities in bovine ciliary body and iris was studied in vitro. Hyaluronates from both the human umbilical cord and bovine vitreous inhibited the activities of cathepsin B and acid phosphatase. Cathepsin D, beta-N-acetyl-glucosaminidase, beta-D-glucuronidase and alpha-L-fucosidase activities were not affected by the hyaluronate.
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http://dx.doi.org/10.1016/0014-4835(84)90191-x | DOI Listing |
Adv Sci (Weinh)
January 2025
National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China.
MXenzymes, a promising class of catalytic therapeutic material, offer great potential for tumor treatment, but they encounter significant obstacles due to suboptimal catalytic efficiency and kinetics in the tumor microenvironment (TME). Herein, this study draws inspiration from the electronic structure of transition metal vanadium, proposing the leverage of TME specific-features to induce structural transformations in sheet-like vanadium carbide MXenzymes (TVMz). These transformations trigger cascading catalytic reactions that amplify oxidative stress, thereby significantly enhancing multimodal tumor therapy.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
Multidrug resistance (MDR) facilitates tumor recurrence and metastasis, which has become a main cause of chemotherapy failure in clinical. However, the current therapeutic effects against MDR remain unsatisfactory, mainly hampered by the rigid structure of drug-resistant cell membranes and the uncontrolled drug release. In this study, based on a sequential drug release strategy, we engineered a core-shell nanoparticle (DOX-M@CaP@ATV@HA) depleting cholesterol for reverse tumor MDR.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Laboratory of Polymers and Materials Innovation, Department of Organic and Inorganic Chemistry, Federal University of Ceará, Campus of Pici, 60440-900 Fortaleza, CE, Brazil. Electronic address:
Anacardic acid (AA) is a phenolic lipid extracted from cashew nutshell liquid that has antitumor activity. Given the high hydrophobicity of this compound and aiming to create efficient vehicle for its administration in aqueous systems, the objective of the present work was to develop a microcapsule (MCAA) by spray dryer technique, based on the polysaccharide sodium hyaluronate (SH), containing AA as its core, encapsulated from nanoemulsion. The Encapsulation Efficiency of MCAA presented a value equal to 95.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China. Electronic address:
Exosomes as a unique drug delivery system provide a new choice for tumor therapy. However, the in vitro functionalization of exosomes and the process of circulating drug delivery can easily cause exosome degradation and drug loss, thus reducing the efficiency of drug delivery. In this work, based on the endocyto-fusion-exocytosis pathway of exosome formation, a multifunctional hyaluronic acid nanogel loaded with the antiangiogenic drug vatalanib and the near-infrared photothermal agent indocyanine green (ICG) was designed.
View Article and Find Full Text PDFBiomater Adv
December 2024
College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, Jilin Province, PR China. Electronic address:
Monotherapy has poor accuracy and is easily restricted by tumor microenvironment (TME). Remodeling components of the TME to activate multimodal cancer therapy with high precision and efficiency is worth exploring. A multifunctional nanoreactor was fabricated by decorating chlorin e6-modified and PEGylated hyaluronic acid bearing diethylenetriamine-conjugated dihydrolipoic acid on the surface of glucose oxidase (GOx)-loaded hollow mesoporous CuS nanoparticles (labeled as GOx@HCuS@HA).
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