Zhang JL, Yuan B, Zhang XW, Zhang H, Wang H, Wang XZ, Zhao HW. X-ray Opaque Polymer Drug-Eluting Beads Loaded with Iodized Oil: Preparation and In Vitro and In Vivo Evaluations.
ACS OMEGA 2024;
9:31353-31358. [PMID:
39072120 PMCID:
PMC11270547 DOI:
10.1021/acsomega.3c09368]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 04/19/2024] [Accepted: 07/04/2024] [Indexed: 07/30/2024]
Abstract
Drug-eluting microspheres are commonly used as a local drug delivery system for interventional therapy. However, current drug-eluting microspheres have poor X-ray visibility, which can hinder tracking and postembolization evaluation. In the current study, X-ray-visible poly(acrylic acid) drug-eluting beads loaded with iodized oil (IO-PAA-DEBs) ranging from 100-300 μm were prepared and evaluated both in vitro and in vivo. Iodized oil served as the radiopaque agent, and X-ray and computed tomography scanning confirmed that the microspheres exhibited excellent X-ray-visible properties. The drug-loading capacities of bleomycin hydrochloride, doxorubicin hydrochloride, and oxaliplatin were also investigated. IO-PAA-DEBs exhibited sustained drug release properties, accompanied by a cumulative drug release rate that reached approximately 60% after 120 h. In vitro and in vivo experiments revealed that IO-PAA-DEBs had good biocompatibility. Collectively, these results demonstrated that IO-PAA-DEBs could facilitate transarterial embolization and sustained drug delivery.
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