Technetium-99m labeled core shell hyaluronate nanoparticles as tumor responsive, metastatic skeletal lesion targeted combinatorial theranostics. (15th July 2023)

• Record Type: Journal Article
• Authors: Kaur, Shahdeep; Balakrishnan, Biji; Mallia, Madhava B.; Keshari, Roshan; Hassan, P.A.; Banerjee, Rinti
• Is Part Of: Carbohydrate polymers. Volume 312(2023)
• Publication Date: 2023-07-15
• Subjects: Sodium hyaluronate PubChem CID 3084049 -- Sodium alendronate PubChem CID 23681107 -- Technetium Tc-99m PubChem CID 26476 -- Doxorubicin hydrochloride PubChem CID 443939 -- Celecoxib PubChem CID 2662; HADA hyaluronate dialdehyde (partially oxidized hyaluronate) -- 99mTc technetium-99m -- DOX doxorubicin -- RCP radiochemical purity -- Aln Alendronate -- CXB celecoxib -- SRB sulforhodamine B -- HADA B-HADA nanoparticles with no drug; Hyaluronate -- Alendronate -- Bone metastasis -- Trigger responsive -- Radiolabeling; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2023.120840
• Languages: English
• ISSNs: 0144-8617

Abstract

Abstract: Achieving target specific delivery of chemotherapeutics in metastatic skeletal lesions remains a major challenge. Towards this, a dual drug loaded, radiolabeled multi-trigger responsive nanoparticles having partially oxidized hyaluronate (HADA) conjugated to alendronate shell and palmitic acid core were developed. While the hydrophobic drug, celecoxib was encapsulated in the palmitic acid core, the hydrophilic drug, doxorubicin hydrochloride was linked to the shell via a pH responsive imine linkage. Hydroxyapatite binding studies showed affinity of alendronate conjugated HADA nanoparticles to bones. Enhanced cellular uptake of the nanoparticles was achieved via HADA-CD44 receptor binding. HADA nanoparticles demonstrated trigger responsive release of encapsulated drugs in the presence of hyaluronidase, pH and glucose, present in excess in the tumor microenvironment. Efficacy of the nanoparticles for combination chemotherapy was established by >10-fold reduction in IC50 of drug loaded particles with a combination index of 0.453, as compared to free drugs in MDA-MB-231 cells. The nanoparticles could be radiolabeled with the gamma emitting radioisotope technetium-99m ( 99m Tc) through a simple, 'chelator free', procedure with excellent radiochemical purity (RCP) (>90 %) and in vitro stability. 99m Tc-labeled drug loaded nanoparticles reported herein constitutes a promising theranostic agent to target metastatic bone lesions. Statement of hypotheses: Technetium-99m labeled, alendronate conjugated, dual targeting, tumor responsive, hyaluronate nanoparticle for tumor specific drug release and enhanced therapeutic effect, with real-time in vivo monitoring. Graphical abstract: Unlabelled Image