[Establishing mouse embryonic stem cell line carrying a fluorescent undifferentiated marker].
To label mouse ES cells,a cell line derived from the inner cell mass of 3.5-day blastocysts,with enhanced green fluorescent protein (EGFP), the vector of pRex-1-EGFP was transferred into mouse ES cells by electroporation. The expressions of Rex-1 in undifferentiated and differentiated ES cells were detected by the microscopic observation of EGFP and by RT-PCR. The results showed that the EGFP gene was transferred into the mouse ES cell line, and the transfected cells in undifferentiated state showed high levels of EGFP expression. When the cells began to differentiate, the EGFP expressions were gradually reduced. A mouse ES cell line expressing EGFP under the control of Rex-1 gene promoter was generated. The cell line provides a powerful approach for the research of the process of mammalian development and for the screening of small molecules that can regulate this process.
Teng
Lu
L
College of life sciences, Peking University, Beijing 100871, China. lteng@emory.edu
Cheng
Jun-Ying
JY
Yang
Yang
Y
Zhang
Chong-Ben
CB
D000818:Animals; D002454:Cell Differentiation; D002460:Cell Line; D004622:Embryo, Mammalian / Q000166:cytology*; D049452:Green Fluorescent Proteins / Q000235:genetics*; D051379:Mice; D013234:Stem Cells / Q000166:cytology*; D014157:Transcription Factors / Q000235:genetics*; D014162:Transfection; D014212:Tretinoin / Q000494:pharmacology; D016335:Zinc Fingers
D014157:Transcription Factors; D049452:Green Fluorescent Proteins; D014212:Tretinoin