Hemoglobin-vesicle, a cellular artificial oxygen carrier that fulfils the physiological roles of the red blood cell structure

Hiromi Sakai, Keitaro Sou, Hirohisa Horinouchi, Koichi Kobayashi, Eishun Tsuchida

研究成果: Conference contribution

17 引用 (Scopus)

抄録

Hb-vesicles (HbV) are artificial O2 carriers encapsulating concentrated Hb solution (35 g/dL) with a phospholipid bilayer membrane (liposome). The concentration of the HbV suspension is extremely high ([Hb] = 10 g/dL) and it has an O2 carrying capacity that is comparable to that of blood. HbV is much smaller than RBC (250 vs. 8000 nm), but it recreates the functions of RBCs; (i) the slower rate of O2 unloading than Hb solution; (ii) colloid osmotic pressure is zero; (iii) the viscosity of a HbV suspension is adjustable to that of blood; (iv) HbV is finally captured by and degraded in RES; (v) co-encapsulation of an allosteric effector to regulate O2 affinity; (vi) the lipid bilayer membrane prevents direct contact of Hb and vasculature; (vii) NO-binding is retarded to some extent by an intracellular diffusion barrier, and HbV does not induce vasoconstriction. (viii) Both RBC and HbV can be a carrier of not only O2 but also exogenous CO. However, HbV has limitations such as a shorter functional half-life when compared with RBCs. On the other hand, the advantages of HbV are that it is pathogen-free and blood-type-antigen-free; moreover, it can withstand long-term storage of a few years, none of which can be achieved by the RBC transfusion systems.

元の言語English
ホスト出版物のタイトルAdvances in Experimental Medicine and Biology
ページ433-438
ページ数6
662
DOI
出版物ステータスPublished - 2010

出版物シリーズ

名前Advances in Experimental Medicine and Biology
662
ISSN(印刷物)00652598

Fingerprint

Hemoglobins
Blood
Erythrocytes
Cells
Oxygen
Suspensions
Lipid bilayers
Membranes
Diffusion barriers
Osmotic Pressure
Conservation of Natural Resources
Lipid Bilayers
Colloids
Pathogens
Carbon Monoxide
Membrane Lipids
Vasoconstriction
Unloading
Encapsulation
Viscosity

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

これを引用

Sakai, H., Sou, K., Horinouchi, H., Kobayashi, K., & Tsuchida, E. (2010). Hemoglobin-vesicle, a cellular artificial oxygen carrier that fulfils the physiological roles of the red blood cell structure. : Advances in Experimental Medicine and Biology (巻 662, pp. 433-438). (Advances in Experimental Medicine and Biology; 巻数 662). https://doi.org/10.1007/978-1-4419-1241-1_62

Hemoglobin-vesicle, a cellular artificial oxygen carrier that fulfils the physiological roles of the red blood cell structure. / Sakai, Hiromi; Sou, Keitaro; Horinouchi, Hirohisa; Kobayashi, Koichi; Tsuchida, Eishun.

Advances in Experimental Medicine and Biology. 巻 662 2010. p. 433-438 (Advances in Experimental Medicine and Biology; 巻 662).

研究成果: Conference contribution

Sakai, H, Sou, K, Horinouchi, H, Kobayashi, K & Tsuchida, E 2010, Hemoglobin-vesicle, a cellular artificial oxygen carrier that fulfils the physiological roles of the red blood cell structure. : Advances in Experimental Medicine and Biology. 巻. 662, Advances in Experimental Medicine and Biology, 巻. 662, pp. 433-438. https://doi.org/10.1007/978-1-4419-1241-1_62
Sakai H, Sou K, Horinouchi H, Kobayashi K, Tsuchida E. Hemoglobin-vesicle, a cellular artificial oxygen carrier that fulfils the physiological roles of the red blood cell structure. : Advances in Experimental Medicine and Biology. 巻 662. 2010. p. 433-438. (Advances in Experimental Medicine and Biology). https://doi.org/10.1007/978-1-4419-1241-1_62
Sakai, Hiromi ; Sou, Keitaro ; Horinouchi, Hirohisa ; Kobayashi, Koichi ; Tsuchida, Eishun. / Hemoglobin-vesicle, a cellular artificial oxygen carrier that fulfils the physiological roles of the red blood cell structure. Advances in Experimental Medicine and Biology. 巻 662 2010. pp. 433-438 (Advances in Experimental Medicine and Biology).
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