Influence of coenzyme Q10 on tissue distribution of archaeosomes and pegylated archaeosomes, administered to mice by oral and intravenous routes.

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DOIResolve DOI: http://doi.org/10.3109/10611869909085521
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TypeArticle
Journal titleJournal of Drug Targeting
Volume7
Issue383
Pages392
SubjectArchaeal ether lipids, Archaeosomes (liposomes), Biodistribution, Coenzyme Q10, PEG
AbstractThe biodistribution of orally and intravenously administered archaeosomes in mice was compared to that of archaeosomes containing either coenzyme Q10 (archaeosome-CoQ10), polyethylene glycol (archaeosome-PEG), or PEG plus CoQ10 (archaeosome-PEG-CoQ10). The archaeosome formulations were prepared by a reverse-phase evaporation method using the total polar lipids from the archaeobacterium Methanosarcina mazei. In the case of oral gavage, the most striking observation was that a significantly (p < 0.05) higher concentration (42.28+/-4.17%) of administered dose was found in the stomach content 3 h after administration of unmodified archaeosomes, as compared to that of archaeosome-CoQ10 (16.98+/-2.48%) and archaeosome-PEG-CoQ10 (5.8 +/-4.05"/ vesicles. This correlated with an increased uptake, notably of the archaeosome-PEG-CoQ 0 vesicles.,into liver and spleen; however, no more than 7% of the administered dose was found in liver, spleen and blood at any time point studied. In the case of intravenous administration, a significantly higher percentage of injected dose of unmodified archaeosomes was found in the liver (66.4 +/-.92%) and spleen (11.445+/-.68%) at 48 h, compared to archaeosome-CoQ10, archaeosome-PEG, and archaeosome-PEG-CoQ10 vesicles. The combination of PEG and CoQ10 significantly prolonged the circulation of archaeosomes in the blood, but after 48 h the amount of the vesicle marker in blood had declined to only about 0.5% of administered dose. These data indicate that the biodistribution of archaeosome formulations given orally or intravenously can be altered significantly by incorporating PEG or CoQ 10, alone or in combination, and these vesicles have the potential to act as a carrier for therapeutics and vaccines.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Biological Sciences
Peer reviewedNo
NRC numberOMRI2000
NPARC number9371675
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Record identifier14edbc33-bf17-49e7-98d5-90a876ad361b
Record created2009-07-10
Record modified2016-05-09
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