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Kinome-wide functional analysis highlights the role of cytoskeletal remodeling in somatic cell reprogramming

Sakurai, Kumi
Talukdar, Indrani
Patil, Veena S.
Dang, Jason
Li, Zhonghan
Chang, Kung-Yen
Lu, Chih-Chung
Delorme-Walker, Violaine
Dermardirossian, Celine
Anderson, Karen
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Authors
Sakurai, Kumi
Talukdar, Indrani
Patil, Veena S.
Dang, Jason
Li, Zhonghan
Chang, Kung-Yen
Lu, Chih-Chung
Delorme-Walker, Violaine
Dermardirossian, Celine
Anderson, Karen
Hanein, Dorit
Yang, Chao-Shun
Wu, Dongmei
Liu, Yang
Rana, Tariq M.
Student Authors
Chao-Shun Yang
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Document Type
Journal Article
Publication Date
2014-04-03
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Abstract

The creation of induced pluripotent stem cells (iPSCs) from somatic cells by ectopic expression of transcription factors has galvanized the fields of regenerative medicine and developmental biology. Here, we report a kinome-wide RNAi-based analysis to identify kinases that regulate somatic cell reprogramming to iPSCs. We prepared 3,686 small hairpin RNA (shRNA) lentiviruses targeting 734 kinase genes covering the entire mouse kinome and individually examined their effects on iPSC generation. We identified 59 kinases as barriers to iPSC generation and characterized seven of them further. We found that shRNA-mediated knockdown of the serine/threonine kinases TESK1 or LIMK2 promoted mesenchymal-to-epithelial transition, decreased COFILIN phosphorylation, and disrupted Actin filament structures during reprogramming of mouse embryonic fibroblasts. Similarly, knockdown of TESK1 in human fibroblasts also promoted reprogramming to iPSCs. Our study reveals the breadth of kinase networks regulating pluripotency and identifies a role for cytoskeletal remodeling in modulating the somatic cell reprogramming process.

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Cell Stem Cell. 2014 Apr 3;14(4):523-34. doi: 10.1016/j.stem.2014.03.001. Link to article on publisher's site

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DOI
10.1016/j.stem.2014.03.001
PubMed ID
24702998
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