21060825

Source:http://linkedlifedata.com/resource/pubmed/id/21060825

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0002630, umls-concept:C0017262, umls-concept:C0086418, umls-concept:C0178539, umls-concept:C0227952, umls-concept:C0439661, umls-concept:C0745777, umls-concept:C2717959
pubmed:issue	10
pubmed:dateCreated	2010-11-9
pubmed:abstractText	Human amniotic fluid cells (AFCs) are routinely obtained for prenatal diagnostics procedures. Recently, it has been illustrated that these cells may also serve as a valuable model system to study developmental processes and for application in regenerative therapies. Cellular reprogramming is a means of assigning greater value to primary AFCs by inducing self-renewal and pluripotency and, thus, bypassing senescence. Here, we report the generation and characterization of human amniotic fluid-derived induced pluripotent stem cells (AFiPSCs) and demonstrate their ability to differentiate into the trophoblast lineage after stimulation with BMP2/BMP4. We further carried out comparative transcriptome analyses of primary human AFCs, AFiPSCs, fibroblast-derived iPSCs (FiPSCs) and embryonic stem cells (ESCs). This revealed that the expression of key senescence-associated genes are down-regulated upon the induction of pluripotency in primary AFCs (AFiPSCs). By defining distinct and overlapping gene expression patterns and deriving the LARGE (Lost, Acquired and Retained Gene Expression) Principle of Cellular Reprogramming, we could further highlight that AFiPSCs, FiPSCs and ESCs share a core self-renewal gene regulatory network driven by OCT4, SOX2 and NANOG. Nevertheless, these cell types are marked by distinct gene expression signatures. For example, expression of the transcription factors, SIX6, EGR2, PKNOX2, HOXD4, HOXD10, DLX5 and RAXL1, known to regulate developmental processes, are retained in AFiPSCs and FiPSCs. Surprisingly, expression of the self-renewal-associated gene PRDM14 or the developmental processes-regulating genes WNT3A and GSC are restricted to ESCs. Implications of this, with respect to the stability of the undifferentiated state and long-term differentiation potential of iPSCs, warrant further studies.
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/101285081
pubmed:citationSubset	IM
pubmed:status	MEDLINE
pubmed:issn	1932-6203
pubmed:author	pubmed-author:AdjayeJamesJ, pubmed-author:LehrachHansH, pubmed-author:PrigioneAlessandroA, pubmed-author:SperlingKarlK, pubmed-author:WangYingY, pubmed-author:WolfrumKatharinaK
pubmed:issnType	Electronic
pubmed:volume	5
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	e13703
pubmed:meshHeading	pubmed-meshheading:21060825-Amniotic Fluid, pubmed-meshheading:21060825-Down-Regulation, pubmed-meshheading:21060825-Gene Expression Regulation, pubmed-meshheading:21060825-Humans, pubmed-meshheading:21060825-Pluripotent Stem Cells
pubmed:year	2010
pubmed:articleTitle	The LARGE principle of cellular reprogramming: lost, acquired and retained gene expression in foreskin and amniotic fluid-derived human iPS cells.
pubmed:affiliation	Molecular Embryology and Aging Group, Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics, Berlin, Germany.
pubmed:publicationType	Journal Article, Research Support, Non-U.S. Gov't