Polymer nanotherapeutics with the controlled release of acetylsalicylic acid and its derivatives inhibiting cyclooxygenase isoforms and reducing the production of pro-inflammatory mediators

. 2024 Nov 15 ; 665 () : 124742. [epub] 20240922

Jazyk angličtina Země Nizozemsko Médium print-electronic

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid39317246
Odkazy

PubMed 39317246
DOI 10.1016/j.ijpharm.2024.124742
PII: S0378-5173(24)00976-1
Knihovny.cz E-zdroje

The effective treatment of inflammatory diseases, particularly their chronic forms, is a key task of modern medicine. Herein, we report the synthesis and evaluation of biocompatible polymer conjugates based on N-2-(hydroxypropyl)methacrylamide copolymers enabling the controlled release of acetylsalicylic acid (ASA)-based anti-inflammatory drugs under specific stimuli. All polymer nanotherapeutics were proposed as water-soluble drug delivery systems with a hydrodynamic size below 10 nm ensuring suitability for the parenteral application and preventing opsonization by the reticuloendothelial system. The nanotherapeutics bearing an ester-bound ASA exhibited long-term release of the ASA/salicylic acid mixture, while the nanotherapeutics carrying salicylic acid hydrazide (SAH) ensured the selective release of SAH in the acidic inflammatory environment thanks to the pH-sensitive hydrazone bond between the polymer carrier and SAH. The ASA- and SAH-containing nanotherapeutics inhibited both cyclooxygenase isoforms and/or the production of pro-inflammatory mediators. Thanks to their favorable design, they can preferentially accumulate in the inflamed tissue, resulting in reduced side effects and lower dosage, and thus more effective and safer treatment.

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