Eosinophil cationic protein enhances stabilization of β-catenin during cardiomyocyte differentiation in P19CL6 embryonal carcinoma cells

Guoliang Jin, Akifumi Mizutani, Takayuki Fukuda, Takayuki Otani, Ting Yan, Marta Prieto Vila, Hiroshi Murakami, Takayuki Kudoh, Satoshi Hirohata, Tomonari Kasai, David S. Salomon, Masaharu Seno

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Prior to gastrulation, the Wnt signaling pathway through stabilized β-catenin enhances the differentiation of mouse ES cell into cardiomyocytes. We have recently shown that cardiomyocyte differentiation is enhanced by eosinophil cationic protein (ECP) through accelerated expression of marker genes of early cardiac differentiation. Furthermore, ECP enhanced the expression of Wnt3a in P19CL6 cells which were stimulated to differentiate into cardiomyocytes by DMSO. Following these findings, we evaluated in this study the potential of ECP to activate the Wnt/β-catenin signaling pathway during cardiomyocyte differentiation. Analysis by real time qPCR revealed that ECP increased the expression of Frizzled genes such as Frizzled-1, -2, -4 and -10 in P19CL6 cells in the presence of DMSO. The increased expression of those Wnt receptors was found to inhibit the phosphorylation of β-catenin resulting in the stabilization and translocation of β-catenin into the nucleus of P19CL6 cells during the early stages of cardiomyocyte differentiation. When assessed for β-catenin/TCF transcriptional activity with a TCF-luciferase (TOP/FOP) assay, ECP enhanced luciferase activity in P19CL6 cells during 48 h after transfection with TOP/FOP flash reporter in a stoichiometric manner. Collectively, this suggests that ECP can activate a canonical Wnt/β-catenin signaling pathway by enhancing the stabilization of β-catenin during cardiomyocyte differentiation.

Original languageEnglish
Pages (from-to)3165-3171
Number of pages7
JournalMolecular Biology Reports
Volume40
Issue number4
DOIs
Publication statusPublished - Apr 2013

Fingerprint

Eosinophil Cationic Protein
Embryonal Carcinoma Stem Cells
Catenins
Cardiac Myocytes
Wnt Signaling Pathway
Dimethyl Sulfoxide
Luciferases
Wnt Receptors
Gene Expression
Gastrulation
Cell Nucleus
Transfection
Phosphorylation

Keywords

  • Cardiomyocyte differentiation
  • Eosinophil cationic protein
  • P19CL6 cells
  • Wnt signaling

ASJC Scopus subject areas

  • Genetics
  • Molecular Biology

Cite this

Eosinophil cationic protein enhances stabilization of β-catenin during cardiomyocyte differentiation in P19CL6 embryonal carcinoma cells. / Jin, Guoliang; Mizutani, Akifumi; Fukuda, Takayuki; Otani, Takayuki; Yan, Ting; Prieto Vila, Marta; Murakami, Hiroshi; Kudoh, Takayuki; Hirohata, Satoshi; Kasai, Tomonari; Salomon, David S.; Seno, Masaharu.

In: Molecular Biology Reports, Vol. 40, No. 4, 04.2013, p. 3165-3171.

Research output: Contribution to journalArticle

Jin, Guoliang ; Mizutani, Akifumi ; Fukuda, Takayuki ; Otani, Takayuki ; Yan, Ting ; Prieto Vila, Marta ; Murakami, Hiroshi ; Kudoh, Takayuki ; Hirohata, Satoshi ; Kasai, Tomonari ; Salomon, David S. ; Seno, Masaharu. / Eosinophil cationic protein enhances stabilization of β-catenin during cardiomyocyte differentiation in P19CL6 embryonal carcinoma cells. In: Molecular Biology Reports. 2013 ; Vol. 40, No. 4. pp. 3165-3171.
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