Cas9 effector-mediated regulation of transcription and differentiation in human pluripotent stem cells
Kearns, Nicola A. ; Genga, Ryan M. J. ; Enuameh, Metewo Selase ; Garber, Manuel ; Wolfe, Scot A. ; Maehr, Rene
Citations
Student Authors
Faculty Advisor
Academic Program
Document Type
Publication Date
Keywords
Caspase 9
Cell Differentiation
Cell Lineage
Clustered Regularly Interspaced Short Palindromic Repeats
DNA-Binding Proteins
Embryonic Stem Cells
Gene Regulatory Networks
HEK293 Cells
Humans
Molecular Sequence Data
Octamer Transcription Factor-3
Pluripotent Stem Cells
SOXF Transcription Factors
Transcription, Genetic
Transcriptional Activation
UMCCTS funding
Cell Biology
Cellular and Molecular Physiology
Developmental Biology
Molecular Genetics
Subject Area
Embargo Expiration Date
Link to Full Text
Abstract
The identification of the trans-acting factors and cis-regulatory modules that are involved in human pluripotent stem cell (hPSC) maintenance and differentiation is necessary to dissect the operating regulatory networks in these processes and thereby identify nodes where signal input will direct desired cell fate decisions in vitro or in vivo. To deconvolute these networks, we established a method to influence the differentiation state of hPSCs with a CRISPR-associated catalytically inactive dCas9 fused to an effector domain. In human embryonic stem cells, we find that the dCas9 effectors can exert positive or negative regulation on the expression of developmentally relevant genes, which can influence cell differentiation status when impinging on a key node in the regulatory network that governs the cell state. This system provides a platform for the interrogation of the underlying regulators governing specific differentiation decisions, which can then be employed to direct cellular differentiation down desired pathways.
Source
Kearns NA, Genga RM, Enuameh MS, Garber M, Wolfe SA, Maehr R. Cas9 effector-mediated regulation of transcription and differentiation in human pluripotent stem cells. Development. 2014 Jan;141(1):219-23. doi:10.1242/dev.103341. Link to article on publisher's site