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Open Access Green as soon as Postprint is submitted to ZB.
Monoclonal antibody-targeted PEGylated liposome-ICG encapsulating doxorubicin as a potential theranostic agent.
Int. J. Pharm. 482, 2-10 (2015)
Indocyanine green (ICG) is an FDA-approved, strongly photo-absorbent/fluorescent probe that has been incorporated into a clinically-relevant PEGylated liposome as a flexible optoacoustic contrast agent platform. This study describes the engineering of targeted PEGylated liposome-ICG using the anti-MUC-1 "humanized" monoclonal antibody (MoAb) hCTM01 as a tumour-specific theranostic system. We aimed to visualise non-invasively the tumour accumulation of these MoAb-targeted liposomes over time in tumour-bearing mice using multispectral optoacoustic tomography (MSOT). Preferential accumulation of targeted PEGylated liposome-ICG was studied after intravenous administration in comparison to non-targeted PEGylated liposome-ICG using both fast growing (4T1) and slow growing (HT-29) MUC-1 positive tumour models. Monitoring liposomal ICG in the tumour showed that both targeted and non-targeted liposome-ICG formulations preferentially accumulated into the tumour models studied. Rapid accumulation was observed for targeted liposomes at early time points mainly in the periphery of the tumour volume suggesting binding to available MUC-1 receptors. In contrast, non-targeted PEGylated liposomes showed accumulation at the centre of the tumour at later time points. In an attempt to take this a step further, we successfully encapsulated the anticancer drug, doxorubicin (DOX) into both targeted and non-targeted PEGylated liposome-ICG. The engineering of DOX-loaded targeted ICG liposome systems present a novel platform for combined tumour-specific therapy and diagnosis. This can open new possibilities in the design of advanced image-guided cancer therapeutics.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Cancer Nanotechnology ; Nanomedicine ; Optical Imaging ; Photoacoustics ; Targeting; Multispectral Optoacoustic Tomography; Macromolecular Drug-delivery; Epithelial Ovarian-cancer; In-vivo; Indocyanine Green; Enhanced Permeability; Solid Tumors; Biodistribution; Nanomedicine; Retention
ISSN (print) / ISBN
0378-5173
e-ISSN
1873-3476
Quellenangaben
Volume: 482,
Issue: 1-2,
Pages: 2-10
Publisher
Elsevier
Publishing Place
Amsterdam
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Biological and Medical Imaging (IBMI)