Method of preparing tissues and cells for vitrification

Details Method of preparing tissues and cells for vitrification Method of preparing tissues and cells for vitrification

1998-02-27

1999-10-05

Saucier, Sandra E.

Chemistry: molecular biology and microbiology

Differentiated tissue or organ other than blood, per se, or...

Including freezing; composition therefor

435 11, 435 12, 4352841, A01N 102

Patent

active

059622148

ABSTRACT:
The invention relates to the field of organ and tissue perfusion. More particularly, the present invention relates to a method for preparing organs, such as the kidney and liver, for cryopreservation through the introduction of vitrifiable concentrations of cryoprotectant into them. To prepare the organ for cryopreservation, the donor human or animal, is treated in the usual manner and may also be treated with iloprost, or other vasodilators, and/or transforming growth factor .beta.1. Alternatively, or additionally, the organ which is to be cryopreserved can be administered iloprost, or other vasodilators, and/or transforming growth factor .beta.1 directly into its artery. The invention also relates to preparing organs for transplantation by a method for the removal of the cryoprotectant therefrom using low (such as raffi nose, sucrose, mannitol, etc.), medium (such as agents with intermediate molecular weights of around 600-2,000) and high (such as hydroxyethyl starch) molecular weight agents osmotic buffering agents. The invention is also directed to new post-transplantation treatments such as the use of transforming growth factor .beta.1, N-acetylcysteine and aurothioglucose.

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