Effects of encapsulated rabbit mesenchymal stem cells on ex vivo expansion of human umbilical cord blood hematopoietic stem/progenitor cells.

作者: Yang Liu , Tianqing Liu , Xuehu Ma , Xiubo Fan , Chunyu Bao

DOI: 10.1080/02652040802193014

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摘要: The expansion of umbilical cord blood mononuclear cells (UCB MNCs) was investigated in a novel co-culture system by means encapsulation rabbit bone marrow (BM) mesenchymal stem (MSCs) alginate beads (Alg beads). Three kinds media were applied and the experiments lasted for 7 days. total nucleated cell density measured every 24 h. Flow cytometric assay CD34+ methylcellulose colony assays carried out at 0, 72 168 It found that encapsulated MSCs illustrated remarkable effects on UCB MNCs regardless whether serum is present culture or not. At end h co-culture, number multiplied 15 ± 2.9 times, 5.3 0.3 times colony-forming units (CFU-Cs) 5.6 1.2 serum-free supplemented with conventional dose cytokines, which very similar to results containing 20% media. While control, i.e. MNC without encapsula...

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