Cell cycle regulation of embryonic stem cells and mouse embryonic fibroblasts lacking functional Pax7.
The transcription factor Pax7 plays a key role during embryonic myogenesis and in adult organisms in that it sustains the proper function of satellite cells, which serve as adult skeletal muscle stem cells. Recently we have shown that lack of Pax7 does not prevent the myogenic differentiation of pluripotent stem cells. In the current work we show that the absence of functional Pax7 in differentiating embryonic stem cells modulates cell cycle facilitating their proliferation. Surprisingly, deregulation of Pax7 function also positively impacts at the proliferation of mouse embryonic fibroblasts. Such phenotypes seem to be executed by modulating the expression of positive cell cycle regulators, such as cyclin E.
a Department of Cytology , Institute of Zoology, Faculty of Biology, University of Warsaw , Warsaw , Poland.
Areta M
AM
Czerwinska
a Department of Cytology , Institute of Zoology, Faculty of Biology, University of Warsaw , Warsaw , Poland.
Joanna
J
Nowacka
a Department of Cytology , Institute of Zoology, Faculty of Biology, University of Warsaw , Warsaw , Poland.
Magdalena
M
Aszer
a Department of Cytology , Institute of Zoology, Faculty of Biology, University of Warsaw , Warsaw , Poland.
Sylwia
S
Gawrzak
a Department of Cytology , Institute of Zoology, Faculty of Biology, University of Warsaw , Warsaw , Poland.
Karolina
K
Archacka
b Laboratory of Microarray Analysis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences , Warsaw , Poland.
Anna
A
Fogtman
b Laboratory of Microarray Analysis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences , Warsaw , Poland.|c Department of Systems Biology , Faculty of Biology, University of Warsaw , Warsaw , Poland.
Roksana
R
Iwanicka-Nowicka
a Department of Cytology , Institute of Zoology, Faculty of Biology, University of Warsaw , Warsaw , Poland.
Katarzyna
K
Jańczyk-Ilach
b Laboratory of Microarray Analysis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences , Warsaw , Poland.|c Department of Systems Biology , Faculty of Biology, University of Warsaw , Warsaw , Poland.
Marta
M
Koblowska
a Department of Cytology , Institute of Zoology, Faculty of Biology, University of Warsaw , Warsaw , Poland.
Maria A
MA
Ciemerych
a Department of Cytology , Institute of Zoology, Faculty of Biology, University of Warsaw , Warsaw , Poland.
Iwona
I
Grabowska
D000818:Animals; D017209:Apoptosis / Q000235:genetics; D002453:Cell Cycle / Q000235:genetics*; D002454:Cell Differentiation / Q000235:genetics; D049109:Cell Proliferation / Q000235:genetics; D004622:Embryo, Mammalian / Q000166:cytology*; D005347:Fibroblasts / Q000166:cytology* / Q000378:metabolism*; D020869:Gene Expression Profiling; D018507:Gene Expression Regulation, Developmental; D055786:Gene Knockout Techniques; D051379:Mice; D000066450:Mouse Embryonic Stem Cells / Q000166:cytology* / Q000378:metabolism*; D051763:PAX7 Transcription Factor / Q000378:metabolism*; D014158:Transcription, Genetic
D051763:PAX7 Transcription Factor; C497322:Pax7 protein, mouse
Cell cycle; ESCs; MEFs; Pax7; differentiation; mouse