Construction of nanostructured DNA harbouring phosphorodiamidate morpholino oligonucleotide for controlled tissue distribution in mice

Phosphorodiamidate morpholino oligonucleotides (PMOs) are a class of antisense oligonucleotides used in the treatment of neuromuscular diseases. Their major drawbacks are high blood clearance and poor cellular delivery. Previously, we demonstrated that tripod-like nanostructured DNA, or tripodna, was efficiently taken up by macrophages and dendritic cells. In this study, we used iodine-125(125I)-labelled PMOs, designed a tripodna harbouring an 125I-PMO (125I-PMO/tripodna), and evaluated whether this tripodna could control the pharmacokinetic properties of PMO. Gel electrophoresis showed that 125I-PMO was almost completely incorporated into the tripodna. Compared to 125I-PMO, 125I-PMO/tripodna was more efficiently taken up by macrophage-like RAW264.7 cells. Moreover, after intravenous injection into mice, the area under the plasma concentration-time curve of 125I-PMO/tripodna was significantly larger than that of 125I-PMO. The distribution of 125I-PMO/tripodna in the liver and spleen at 24 h was 32- and 51-fold higher than that of 125I-PMO, respectively. The fractionation of liver cells revealed that non-parenchymal cells were the major cells contributing to the hepatic uptake of 125I-PMO/tripodna. These results indicate that tripodna has the potential to deliver PMO, particularly to the liver and spleen.

Medienart:

E-Artikel

Erscheinungsjahr:

2018

Erschienen:

2018

Enthalten in:

Zur Gesamtaufnahme - volume:26

Enthalten in:

Journal of drug targeting - 26(2018), 4 vom: 25. Apr., Seite 373-381

Sprache:

Englisch

Beteiligte Personen:

Takahashi, Yosuke [VerfasserIn]
Araie, Yuki [VerfasserIn]
Nomura, Daiki [VerfasserIn]
Takahashi, Yuki [VerfasserIn]
Sano, Kohei [VerfasserIn]
Saji, Hideo [VerfasserIn]
Takakura, Yoshinobu [VerfasserIn]
Nishikawa, Makiya [VerfasserIn]

Links:

Volltext

Themen:

9007-49-2
Comparative Study
DNA
Drug targeting
GVO776611R
Iodine Radioisotopes
Iodine-125
Journal Article
Morpholinos
Nanotechnology
Oligodeoxynucleotides (ODNs)
Oligonucleotides, Antisense
Pharmacokinetics
Research Support, Non-U.S. Gov't
Targeted drug delivery
Word

Anmerkungen:

Date Completed 16.07.2019

Date Revised 16.07.2019

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1080/1061186X.2017.1387789

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM276424573