In:
Transfusion Medicine and Hemotherapy, S. Karger AG, Vol. 44, No. 3 ( 2017), p. 143-150
Abstract:
〈 b 〉 Background: 〈 /b 〉 The ex vivo generation of human hematopoietic stem cells (HSCs) with long-term repopulating capacity and multi-lineage differentiation potential represents the holy grail of hematopoiesis research. In principle, human induced pluripotent stem cells (hiPSCs) provide the tool for both studying molecular mechanisms of hematopoietic development and the ex vivo production of ‘true' HSCs for transplantation purposes and lineage-specific cells, e.g. red blood cells, for transfusion purposes. CD43-expressing cells have been reported as the first hematopoietic cells during development, but whether or not these possess multilineage differentiation and long-term engraftment potential is incompletely understood. 〈 b 〉 Methods: 〈 /b 〉 We performed ex vivo generation of hematopoietic cells from hiPSCs using an embryoid body(EB)-based, xeno-product-free differentiation protocol. We investigated the multilineage differentiation potential of different FACS-sorted CD43-expressing cell subsets by colony-forming assays in semisolid media. Further, erythroid differentiation was investigated in more detail using established protocols. 〈 b 〉 Results: 〈 /b 〉 By using CD43, we were able to measure hematopoietic induction efficiency during hiPSC-derived EB differentiation. Further, we determined CD43+ cells as the cell population of origin for in vitro erythropoiesis. Furthermore, colony formation demonstrates that the multipotent hematopoietic stem and progenitor cell fraction is particulary enriched in the CD43 〈 sup 〉 hi 〈 /sup 〉 CD45+ population.
Type of Medium:
Online Resource
ISSN:
1660-3796
,
1660-3818
Language:
English
Publisher:
S. Karger AG
Publication Date:
2017
detail.hit.zdb_id:
2100533-3
