Methods and compositions for the preservation of cells, tissues or organs in the vitreous state
The invention provides methods for the hypothermic preservation of cells, tissues and organs. In particular, the invention provides methods for the hypothermic preservation or storage of cells, tissues or organs in the vitreous state.
1. A method of preserving a eukaryotic cell, tissue or organ comprising:
a) contacting said cell, tissue or organ with a hypothermic storage solution, wherein said solution comprises:
i) a composition that inhibits apoptosis; and
ii) a concentration of a vitrification composition that is sufficient for vitrification of said solution; and
b) vitrifying said cell, tissue or organ, wherein said vitrification occurs both within said cell, tissue or organ and in said hypothermic storage solution comprising and comprised by said cell, tissue or organ;
wherein said composition that inhibits apoptosis comprises an agent that interacts with a polypeptide that participates in an apoptotic pathway; and
wherein said agent is a calpain inhibitor and is selected from the group consisting of leupeptin, calpain inhibitors I, II, III, IV and V, calpeptin, loxastatin, a peptide chloromethyl ketone and a peptide fluoromethyl ketone.
2. The method of claim 1 wherein said hypothermic storage solution has a glass transition temperature lower than its homogeneous nucleation temperature.
3. The method of claim 1 wherein said vitrification composition comprises one or more agents selected from the group consisting of sucrose, trehalose, lactose, glucose, DMSO, propylene glycol, ethylene glycol, a dextran, glycerol, hydroxyethyl starch, polyvinyl pyrrolidone, formamide, 1-2-propanediol, ethanol, methanol, and polyethylene oxide.
4. A method of preserving a eukaryotic cell, tissue or organ comprising:
a) contacting said cell, tissue or organ with a hypothermic storage solution, wherein said solution comprises:
i) a composition that inhibits apoptosis comprising an agent that interacts with a polypeptide that participates in an apoptotic pathway, wherein said agent comprises a calpain inhibitor; and
ii) a concentration of a vitrification composition that is sufficient for vitrification of said solution; and
b) vitrifying said cell, tissue or organ, wherein said vitrification occurs both within said cell, tissue or organ and in said hypothermic storage solution comprising and comprised by said cell, tissue or organ.