Controlling Particle Size and Release Kinetics in the Sustained Delivery of Oral Antibiotics Using pH-Independent Mucoadhesive Polymers

Yus, C. (Universidad de Zaragoza) ; Irusta, S. (Universidad de Zaragoza) ; Sebastian, V. (Universidad de Zaragoza) ; Arruebo, M. (Universidad de Zaragoza)

Resumen: Copolymers synthesized from acrylic acid and methacrylic acid used as gastroprotective and mucoadhesive enteric coatings have been used to prepare micro- (~2 µm), submicro- (~200 nm), and nanoparticles (~20 nm) containing rifampicin (Rif) to obtain time-controlled drug release kinetics. Different particle sizes and drug release kinetics have been obtained using different synthesis conditions and fabrication techniques including the use of an electrosprayer and an interdigital microfabricated micromixer. The antimicrobial action of the encapsulated Rif has been demonstrated against Staphylococcus aureus ATCC 25923 and compared with the effect of the equivalent dose of the free macrolide antibiotic. At low concentrations, the encapsulated antibiotic showed superior antimicrobial activity than the free drug. The stability of the developed particles has been evaluated in vitro under simulated gastric and intestinal conditions. At the concentrations tested, a reduced cytotoxicity against different human cell lines was observed after analyzing their subcytotoxic doses and the influence on their cell cycle by flow cytometry. Drug release kinetics can be tuned by adjusting particle sizes, and it would be possible to reach the minimum inhibitory concentration or the minimum bactericidal concentration at different time points depending on the medical needs.

Idioma: Inglés

DOI: 10.1021/acs.molpharmaceut.0c00408

Año: 2020

Publicado en: Molecular pharmaceutics 17, 9 (2020), 3314-3327
ISSN: 1543-8384

Factor impacto JCR: 4.939 (2020)

Categ. JCR: PHARMACOLOGY & PHARMACY rank: 69 / 275 = 0.251 (2020) - Q2 - T1
Categ. JCR: MEDICINE, RESEARCH & EXPERIMENTAL rank: 51 / 140 = 0.364 (2020) - Q2 - T2

Factor impacto SCIMAGO: 1.129 - Drug Discovery (Q1) - Pharmaceutical Science (Q1) - Molecular Medicine (Q1)

Financiación: info:eu-repo/grantAgreement/EC/FP7/614715/EU/A Photo-triggered On-demand Drug Delivery System for Chronic Pain/NANOHEDONISM
Financiación: info:eu-repo/grantAgreement/ES/MCIU/RTI2018-099019-A-I00
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2017-84473-R

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Tecnologi. Medio Ambiente (Dpto. Ing.Quím.Tecnol.Med.Amb.)