摘要:
The present invention provides solutions and methods for preserving living biological materials that enable organs, tissues and cells to be stored for extended periods of time with minimal loss of biological activity. The inventive solutions are substantially isotonic with the biological material to be preserved and are substantially free of dihydrogen phosphate, bicarbonate, nitrate bisulfate and iodide. In one embodiment, the solutions comprise a first neutral solute having a molecular weight of at least about 335 and a solubility in water of at least about 0.3 M, a second neutral solute having a molecular weight of less than about 200 and having both hydrophilic and hydrophobic moieties, with the first neutral solute preferably being selected from the group consisting of raffinose and trehalose and the second neutral solute preferably being selected from the group consisting of trimethyl amine oxide and betaine. For the preservation of many living biological materials, the inventive solutions preferably contain a calcium salt selected from the group consisting of calcium sulfate and calcium chloride.
摘要:
The present invention provides solutions and methods for preserving biological material that enable organs, tissues and cells to be stored for extended periods of time with minimal loss of biological activity. The inventive solutions are substantially isotonic with the biological material to be preserved and are substantially free of univalent oxyanions and of iodide. In one embodiment, the solutions comprise a first neutral solute having a molecular weight of at least about 335 and a solubility in water of at least about 0.3 M, a second neutral solute having a molecular weight of less than about 200 and having both hydrophilic and hydrophobic moieties, and sodium citrate. The inventive solutions preferably contain a calcium salt selected from the group consisting of calcium sulfate and calcium chloride.
摘要:
The present invention provides solutions and methods for preserving biological material that enable organs, tissues and cells to be stored for extended periods of time with minimal loss of biological activity. The inventive solutions are substantially isotonic with the biological material to be preserved and are substantially free of univalent oxyanions and of iodide. The solutions comprise a first neutral solute having a molecular weight of at least about 335 and a solubility in water of at least about 0.3M, and a second neutral solute having a molecular weight of less than about 200 and having both hydrophilic and hydrophobic moieties. The inventive solutions preferably contain CaSO.sub.4, together with combinations of anions and cations from the protein-stabilizing ends of the Hofmeister series, such as K.sub.2 SO.sub.4. In particular methods using solutions comprising raffinose or trehalose and trimethyl amine oxide or betaine, wherein the solution is substantially isotonic with the biological material and the solution is substantially free of iodide, dihydrogen phosphate, bicarbonate, nitrate and bisulfate are described.
摘要翻译:本发明提供了用于保存生物材料的方法和方法,所述生物材料能够使器官,组织和细胞长时间储存,同时生物活性损失最小。 本发明的溶液与待保存的生物材料基本上是等渗的,并且基本上不含一价的氧阴离子和碘化物。 溶液包含分子量至少为约335且在水中的溶解度至少为约0.3M的第一中性溶质和分子量小于约200的第二中性溶质,并具有亲水和疏水部分。 本发明的溶液优选含有CaSO 4,以及来自Hofmeister系列的蛋白质稳定末端的阴离子和阳离子的组合,例如K 2 SO 4。 特别是使用包含棉子糖或海藻糖和三甲基氧化胺或甜菜碱的溶液的方法,其中所述溶液与生物材料基本上是等渗的,并且溶液基本上不含碘化物,磷酸二氢盐,碳酸氢盐,硝酸盐和硫酸氢盐。