Dye labeling for optical imaging biases drug carriers' biodistribution and tumor uptake.
Biodistribution
Drug delivery system
Fluorescent dye-labeling
Molecular imaging
Optical imaging
Journal
Nanomedicine : nanotechnology, biology, and medicine
ISSN: 1549-9642
Titre abrégé: Nanomedicine
Pays: United States
ID NLM: 101233142
Informations de publication
Date de publication:
02 2023
02 2023
Historique:
received:
08
11
2022
revised:
25
12
2022
accepted:
27
12
2022
pubmed:
10
1
2023
medline:
15
2
2023
entrez:
9
1
2023
Statut:
ppublish
Résumé
Biodistribution analyses of nanocarriers are often performed with optical imaging. Though dye tags can interact with transporters, e.g., organic anion transporting polypeptides (OATPs), their influence on biodistribution was hardly studied. Therefore, this study compared tumor cell uptake and biodistribution (in A431 tumor-bearing mice) of four near-infrared fluorescent dyes (AF750, IRDye750, Cy7, DY-750) and dye-labeled poly(N-(2-hydroxypropyl)methacrylamide)-based nanocarriers (dye-pHPMAs). Tumor cell uptake of hydrophobic dyes (Cy7, DY-750) was higher than that of hydrophilic dyes (AF750, IRDye750), and was actively mediated but not related to OATPs. Free dyes' elimination depended on their hydrophobicity, and tumor uptake correlated with blood circulation times. Dye-pHPMAs circulated longer and accumulated stronger in tumors than free dyes. Dye labeling significantly influenced nanocarriers' tumor accumulation and biodistribution. Therefore, low-interference dyes and further exploration of dye tags are required to achieve the most unbiased results possible. In our assessment, AF750 and IRDye750 best qualified for labeling hydrophilic nanocarriers.
Identifiants
pubmed: 36623712
pii: S1549-9634(23)00001-1
doi: 10.1016/j.nano.2023.102650
pii:
doi:
Substances chimiques
Drug Carriers
0
Fluorescent Dyes
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
102650Informations de copyright
Copyright © 2023 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest FG is the owner of Gremse-IT. SR is employed at Gremse-IT.