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其实通过查文献,确实可以发现不少文献表明胎盘中的造血干细胞确实多过脐带血中,问题在于提取过程过于复杂,并且提取物会富含杂质,并没有一个能够提纯同时成本低廉的方法来纯化提取物。至于说文献出处,确实很多,我只举例一篇
~% ]' S7 E+ o7 T$ P* U: UExperimental Biology and Medicine 234:813-823 (2009)doi: 10.3181/0809-BC-262
6 j* @3 i# Y+ G y* yHuman Term Placenta as a Source of Hematopoietic Cells
- c. v; J; {- |/ V4 w; ~Vladimir Serikov, Catherine Hounshell, Sandra Larkin, William Green, Hirokazu Ikeda, Mark C. Walters and Frans A. Kuypers1
0 d- d; N* b( c1 Children’s Hospital Oakland Research Institute, Oakland, California 94609
8 ` U4 k, [2 j5 T0 y+ h- k0 xThe main barrier to a broader clinical application of umbilical cord blood (UCB) transplantation is its limiting cellular content.
( l/ d. s4 z3 oThus, the discovery of hematopoietic progenitor cells in murine placental tissue led us investigate whether the human placenta
, g. h! _' {( ?! wcontains hematopoietic cells, sites of hematopoiesis, and to develop a procedure of processing and storing placental hematopoietic
( Q0 q' Q% J4 Pcells for transplantation. Here we show that the human placenta contains large numbers of CD34-expressing hematopoietic cells, with the potential to provide a cellular yield several-fold greater than that of a typical UCB harvest. Cells from fresh or cryopreserved placental tissue generated erythroid and myeloid ) @/ R( E7 Y1 v
colonies in culture, and also produced lymphoid cells after transplantation in immunodeficient mice. These results suggest that human
8 w4 P; j6 h; v; [% qplacenta could become an important new source of hematopoietic cells for allogeneic transplantation. |
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