A Novel Molecular and Functional Stemness Signature Assessing Human Cord Blood-Derived Endothelial Progenitor Cell ImmaturityReportar como inadecuado




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Endothelial Colony Forming Cells ECFCs, a distinct population of Endothelial Progenitor Cells EPCs progeny, display phenotypic and functional characteristics of endothelial cells while retaining features of stem-progenitor cells. Cord blood-derived ECFCs CB-ECFCs have a high clonogenic and proliferative potentials and they can acquire different endothelial phenotypes, this requiring some plasticity. These properties provide angiogenic and vascular repair capabilities to CB-ECFCs for ischemic cell therapies. However, the degree of immaturity retained by EPCs is still confused and poorly defined. Consequently, to better characterize CB-ECFC stemness, we quantified their clonogenic potential and demonstrated that they were reprogrammed into induced pluripotent stem cells iPSCs more efficiently and rapidly than adult endothelial cells. Moreover, we analyzed the transcriptional profile of a broad gene panel known to be related to stem cells. We showed that, unlike mature endothelial cells, CB-ECFCs expressed genes involved in the maintenance of embryonic stem cell properties such as DNMT3B, GDF3 or SOX2. Thus, these results provide further evidence and tools to appreciate EPC-derived cell stemness. Moreover this novel stem cell transcriptional signature of ECFCs could help better characterizing and ranging EPCs according to their immaturity profile.



Autor: Oriane Guillevic , Ségolène Ferratge , Juliette Pascaud, Catherine Driancourt, Julie Boyer-Di-Ponio, Georges Uzan

Fuente: http://plos.srce.hr/



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