Title : Recombinant factor VIII SQ--stability of VIII: C in homogenates from porcine, monkey and human subcutaneous tissue.

Pub. Date : 2000 Jul

PMID : 10933130






3 Functional Relationships(s)
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1 The low bioavailability of subcutaneously administered factor VIII could have several causes: proteolytic degradation of the protein in the interstitium; adsorption to tissue, in particular to acidic phospholipids such as L-alpha phosphatidyl-L-serine (phosphatidylserine); the absence of free von Willebrand factor in the interstitium; phagocytosis by macrophages in the interstitium or in the lymph nodes; and coagulation could be initiated upon injection. Phosphatidylserines cytochrome c oxidase subunit 8A Homo sapiens
2 Both the von Willebrand factor and phosphatidylserine/phosphatidylcholine (PS/PC) liposomes showed a significant stabilising effect on VIII:C in the tissue homogenates. Phosphatidylserines cytochrome c oxidase subunit 8A Homo sapiens
3 Including phosphatidylserine in the formulations appeared to increase the availability, of subcutaneously administered r-VIII SQ in the pig. Phosphatidylserines cytochrome c oxidase subunit 8A Homo sapiens