Using Oct4:MerCreMer Lineage Tracing to Monitor Endogenous Oct4 Expression During the Reprogramming of Fibroblasts into Induced Pluripotent Stem Cells (iPSCs)

Author(s):  
Lucas V. Greder ◽  
Jason Post ◽  
James R. Dutton
Author(s):  
Kee-Pyo Kim ◽  
Dong Wook Han ◽  
Johnny Kim ◽  
Hans R. Schöler

AbstractEctopic expression of Oct4, Sox2, Klf4 and c-Myc can reprogram somatic cells into induced pluripotent stem cells (iPSCs). Attempts to identify genes or chemicals that can functionally replace each of these four reprogramming factors have revealed that exogenous Oct4 is not necessary for reprogramming under certain conditions or in the presence of alternative factors that can regulate endogenous Oct4 expression. For example, polycistronic expression of Sox2, Klf4 and c-Myc can elicit reprogramming by activating endogenous Oct4 expression indirectly. Experiments in which the reprogramming competence of all other Oct family members tested and also in different species have led to the decisive conclusion that Oct proteins display different reprogramming competences and species-dependent reprogramming activity despite their profound sequence conservation. We discuss the roles of the structural components of Oct proteins in reprogramming and how donor cell epigenomes endow Oct proteins with different reprogramming competences.


2015 ◽  
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pp. 4671-4680 ◽  
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...  

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Frits Hulshof ◽  
Priyalakshmi Viswanathan ◽  
Clemens A. van Blitterswijk ◽  
...  

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Xuelin Ren ◽  
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Xuefei Han ◽  
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...  

Acta Naturae ◽  
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pp. 91-92 ◽  
Author(s):  
M V Shutova ◽  
A N Bogomazova ◽  
M A Lagarkova ◽  
S L Kiselev

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...  

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