Polyglycerol compositions for the protection of living systems from states of reduced metabolism
Polyglycerol, lactose, and a combination of polyglycerol and lactose are effective at preserving cells, tissues, and organs from damage due to hypothermic, ischemic, or other metabolic impairment, and a mixture of polyglycerol plus lactose is particularly useful for the hypothermic storage of cells, tissues, and organs. The mixture of polyglycerol and lactose can be further improved by the addition of chondroitin sulfate, chlorpromazine, calcium, citrate, glutathione, adenine, glucose, magnesium, and a pH buffer.
1. A method for the preservation of cells, tissues, or organs under conditions of impaired cell volume homeostasis in vivo, said method comprising contacting said cells, tissues, or organs with a solution comprising polyglycerol in an amount effective to preclude or to reverse cell swelling in vivo.
2. The method of claim 1 wherein said polyglycerol is 2 to 200 monomers in length.
3. The method of claim 1 wherein the solution is at a temperature between about −10 and +10° C.
4. The method of claim 1 wherein the solution is at a temperature between about 0 and +10° C.
5. The method of claim 1 wherein the solution is at room temperature to body temperature.
6. The method of claim 1 wherein said contacting is via intravenous or intra-arterial administration.
7. The method of claim 1 wherein said contacting is in vivo via arterial organ perfusion or retrograde venous perfusion of an organ or vascularized tissue.
8. The method of claim 1 wherein said contacting is xia the immersion or bathing of affected cells, tissues, or organs by instillation of said solution into an area requiring assistance.
9. The method of claim 1 wherein said polyglycerol is at a concentration of from about 20 mOsm to 1,500 mOsm when in contact with said cell, tissue, or organ.
10. The method of claim 1 wherein said preservation solution further comprises lactose.
11. The method of claim 10 wherein said lactose is alpha lactose.
12. The method of claim 1 wherein said effective amount is an isotonic solution.
13. The method of claim 1 wherein said effective amount is a hypertonic solution.
14. The method of claim 1 , wherein said cell swelling is related to one or more of stroke, shock, heat stroke, warm ischemia, cardiac arrest, hypoxia, poisoning, head trauma, brain swelling, and inflammation.
15. A method for the preservation of cells, tissues, or organs under conditions of impaired cell volume homeostasis in vivo, said method comprising contacting said cells, tissues, or organs with a solution comprising decaglycerol in an amount effective to preclude or to reverse cell swelling in vivo.