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    • 3. 发明公开
    • EXPANSION MEDIUM FOR CD34-NEGATIVE STEM CELLS
    • 扩增蛋白CD34-阴性STAMMZELLEN
    • EP2516627A1
    • 2012-10-31
    • EP10807702.5
    • 2010-12-23
    • Apceth GmbH & Co. KG
    • ASEEVA, ElenaGÜNTHER, Christine
    • C12N5/0775
    • C12N5/0675C12N5/0662C12N5/0663C12N5/0664C12N5/0665C12N5/0666C12N5/0667C12N5/0668C12N2500/84C12N2500/90C12N2501/91C12N2502/115
    • This invention provides a cell growth medium comprising (a) a human platelet lysate free of solid matter greater than 0.22 μm in diameter, wherein the lysate constitutes from 2% to 15% of the total volume of the cell growth medium; (b) a human fresh frozen plasma (FFP) filtrate free of solid matter greater than 0.22 μm in diameter, wherein the FFP filtrate constitutes from 1 % to 10% of the total volume of the cell growth medium; (c) heparin at a concentration of from 0 U/ml to 10 U/ml of the cell growth medium; (d) L-glutamine at a concentration of from 0.5 mM to 10 mM; and (e) a serum-free, low glucose medium suitable for mammalian cell growth, wherein the serum-free, low glucose medium constitutes from 75% to 97% of the total volume of the cell growth medium, and may contain the L-glutamine of part (d); wherein the cell growth medium permits the expansion of human CD34" stem cells and wherein the resulting expanded CD34" stem cells retain the ability to differentiate. This invention also provides related cell growth medium supplements, a sterile human platelet lysate and human fresh frozen plasma (FFP) filtrate, kits, CD34' stem cell-containing compositions, and related production and cell expansion methods.
    • 本发明提供一种细胞生长培养基,其包含(a)直径大于0.22μm的固体物质的人血小板裂解物,其中裂解物构成细胞生长培养基总体积的2%至15%; (b)不含直径大于0.22μm的固体物质的人新鲜冷冻血浆(FFP)滤液,其中FFP滤液占细胞生长培养基总体积的1%至10%; (c)浓度为0U / ml至10U / ml细胞生长培养基的肝素; (d)浓度为0.5mM至10mM的L-谷氨酰胺; 和(e)适合于哺乳动物细胞生长的无血清低葡萄糖培养基,其中无血清低葡萄糖培养基构成细胞生长培养基总体积的75%至97%,并且可含有L- 部分(d)的谷氨酰胺; 其中所述细胞生长培养基允许人CD34-干细胞的扩增,并且其中所产生的扩增的CD34-干细胞保留分化能力。 本发明还提供相关的细胞生长培养基补充剂,无菌人血小板裂解物和人新鲜冷冻血浆(FFP)滤液,试剂盒,含有CD34-干细胞的组合物,以及相关的生产和细胞扩增方法。