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In vivo biodistribution and oxygenation potential of a new generation of oxygen carrier

Paper ID Volume ID Publish Year Pages File Format Full-Text
23024 43413 2014 9 PDF Available
Title
In vivo biodistribution and oxygenation potential of a new generation of oxygen carrier
Abstract

•A fluorescent labeling allows monitoring Arenicola marina hemoglobin in vivo.•This hemoglobin freely circulates in the bloodstream for several hours.•It does not induce any obvious side-effects.•A single injection allows reducing hypoxia in poorly vascularized tissues in mice.

Natural giant extracellular hemoglobins (Hbs) from polychaete annelids are currently actively investigated as promising oxygen carriers. Their powerful oxygenating ability and their safety have been demonstrated in preclinical studies, motivating their development for therapeutic and industrial applications. HEMARINA-M101 (M101) is derived from the marine invertebrate Arenicola marina. It is formulated as a manufactured product designated HEMOXYCarrier® (HEMARINA SA, France). The aim of the present study was to unveil the fate of M101 after a single intravenous (i.v.) injection in mice. For this purpose, M101 was tagged with a far-red fluorescent dye. Repeated non-invasive fluorescent imaging revealed a rapid diffusion of M101 in the whole body of animals, reaching all the examined organs such as brain, liver, lungs and ovaries. Functional M101 was circulating in bloodstream for several hours, without inducing any obvious side-effects. Last, a single i.v. injection of M101 in mice bearing human-derived subcutaneous tumors demonstrated the ability of this Hb to reduce hypoxia in poorly vascularized tissues, thus supporting the biological relevance of M101 oxygen release to vertebrate tissues. Altogether, these results further encourage the development of M101 as an oxygen carrying therapeutic.

Keywords
Natural extracellular hemoglobin; Arenicola marina; Fluorescence; Biodistribution; Tissue oxygenationAUC, area under curve; FPLC, fast purification liquid chromatography; Hb, hemoglobin; i.v., intravenous
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 187, 10 October 2014, Pages 1–9
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us