A Foxo/Notch pathway controls myogenic differentiation and fiber type specification

Tadahiro Kitamura, Yukari Ido Kitamura, Yasuhiro Funahashi, Carrie J. Shawber, Diego H. Castrillon, Ramya Kollipara, Ronald A. DePinho, Jan Kitajewski, Domenico Accili

Research output: Contribution to journalArticle

184 Citations (Scopus)

Abstract

Forkhead box O (Foxo) transcription factors govern metabolism and cellular differentiation. Unlike Foxodependent metabolic pathways and target genes, the mechanisms by which these proteins regulate differentiation have not been explored. Activation of Notch signaling mimics the effects of Foxo gain of function on cellular differentiation. Using muscle differentiation as a model system, we show that Foxo physically and functionally interacts with Notch by promoting corepressor clearance from the Notch effector Csl, leading to activation of Notch target genes. Inhibition of myoblast differentiation by constitutively active Foxo1 is partly rescued by inhibition of Notch signaling while Foxo1 loss of function precludes Notch inhibition of myogenesis and increases myogenic determination gene (MyoD) expression. Accordingly, conditional Foxo1 ablation in skeletal muscle results in increased formation of MyoD-containing (fast-twitch) muscle fibers and altered fiber type distribution at the expense of myogenin-containing (slow-twitch) fibers. Notch/Foxo1 cooperation may integrate environmental cues through Notch with metabolic cues through Foxo1 to regulate progenitor cell maintenance and differentiation.

Original languageEnglish (US)
Pages (from-to)2477-2485
Number of pages9
JournalJournal of Clinical Investigation
Volume117
Issue number9
DOIs
StatePublished - Sep 4 2007

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Cues
Fast-Twitch Muscle Fibers
Myogenin
Genes
Forkhead Transcription Factors
Co-Repressor Proteins
Muscle Development
Myoblasts
Metabolic Networks and Pathways
Cell Differentiation
Skeletal Muscle
Stem Cells
Maintenance
Gene Expression
Muscles
Inhibition (Psychology)
Proteins

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Kitamura, T., Kitamura, Y. I., Funahashi, Y., Shawber, C. J., Castrillon, D. H., Kollipara, R., ... Accili, D. (2007). A Foxo/Notch pathway controls myogenic differentiation and fiber type specification. Journal of Clinical Investigation, 117(9), 2477-2485. https://doi.org/10.1172/JCI32054

A Foxo/Notch pathway controls myogenic differentiation and fiber type specification. / Kitamura, Tadahiro; Kitamura, Yukari Ido; Funahashi, Yasuhiro; Shawber, Carrie J.; Castrillon, Diego H.; Kollipara, Ramya; DePinho, Ronald A.; Kitajewski, Jan; Accili, Domenico.

In: Journal of Clinical Investigation, Vol. 117, No. 9, 04.09.2007, p. 2477-2485.

Research output: Contribution to journalArticle

Kitamura, T, Kitamura, YI, Funahashi, Y, Shawber, CJ, Castrillon, DH, Kollipara, R, DePinho, RA, Kitajewski, J & Accili, D 2007, 'A Foxo/Notch pathway controls myogenic differentiation and fiber type specification', Journal of Clinical Investigation, vol. 117, no. 9, pp. 2477-2485. https://doi.org/10.1172/JCI32054
Kitamura, Tadahiro ; Kitamura, Yukari Ido ; Funahashi, Yasuhiro ; Shawber, Carrie J. ; Castrillon, Diego H. ; Kollipara, Ramya ; DePinho, Ronald A. ; Kitajewski, Jan ; Accili, Domenico. / A Foxo/Notch pathway controls myogenic differentiation and fiber type specification. In: Journal of Clinical Investigation. 2007 ; Vol. 117, No. 9. pp. 2477-2485.
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