scholarly journals Expression of the liver-specific gene Cyp7a1 reveals hepatic differentiation in embryoid bodies derived from mouse embryonic stem cells

2004 ◽  
Vol 9 (12) ◽  
pp. 1297-1308 ◽  
Author(s):  
Kinji Asahina ◽  
Hiroaki Fujimori ◽  
Keiko Shimizu-Saito ◽  
Yuji Kumashiro ◽  
Kentaro Okamura ◽  
...  
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Mouse Embryonic Stem Cells ◽  
Embryoid Bodies ◽  
Specific Gene ◽  
Hepatic Differentiation

scholarly journals Transcriptional Silencing of a Novel hTERT Reporter Locus during In Vitro Differentiation of Mouse Embryonic Stem Cells

2007 ◽  
Vol 18 (2) ◽  
pp. 669-677 ◽  
Author(s):  
Shuwen Wang ◽  
Chunguang Hu ◽  
Jiyue Zhu
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Mouse Embryonic Stem Cells ◽  
Embryoid Bodies ◽  
Histone Deacetylation ◽  
Htert Promoter ◽  
Embryonic Cells ◽  
Human Telomerase Reverse Transcriptase ◽  
Independent Manner

The human telomerase reverse transcriptase hTERT is highly expressed in undifferentiated embryonic cells and silenced in the majority of somatic cells. To investigate the mechanisms of hTERT silencing, we have developed a novel reporter using a bacterial artificial chromosome (BAC) that contained the entire hTERT gene and its neighboring loci, hCRR9 and hXtrp2. Firefly and Renilla luciferases were used to monitor transcription from the hTERT and hCRR9 promoters, respectively. In mouse embryonic stem cells stably integrated with the BAC reporter, both hTERT and hCRR9 promoters were highly expressed. Upon differentiation into embryoid bodies and further into mineral-producing osteogenic cells, the hTERT promoter activity decreased progressively, whereas the hCRR9 promoter remained highly active, both resembling their endogenous counterparts. In fully differentiated cells, the hTERT promoter was completely silenced and adopted a chromatin structure that was similar to its native counterpart in human cells. Inhibition of histone deacetylases led to the opening of the hTERT promoter and partially relieved repression, suggesting that histone deacetylation was necessary but not sufficient for hTERT silencing. Thus, our result demonstrated that developmental silencing of the human TERT locus could be recapitulated in a chromosomal position-independent manner during the differentiation of mouse embryonic stem cells.

Differentiating Mouse Embryonic Stem Cells into Embryoid Bodies by Hanging-Drop Cultures

2016 ◽  
Vol 2016 (12) ◽  
pp. pdb.prot092429 ◽  
Author(s):  
Richard Behringer ◽  
Marina Gertsenstein ◽  
Kristina Vintersten Nagy ◽  
Andras Nagy
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Mouse Embryonic Stem Cells ◽  
Embryoid Bodies ◽  
Hanging Drop

278 EFFECT OF XENOESTROGENS ON THE DIFFERENTIATION OF MOUSE EMBRYONIC STEM CELLS

2009 ◽  
Vol 21 (1) ◽  
pp. 236
Author(s):  
E.-M. Jeung ◽  
K.-C. Choi ◽  
E.-B. Jeung
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Mouse Embryonic Stem Cells ◽  
Embryoid Bodies ◽  
Time Dependent ◽  
Dependent Manner ◽  
Cardiomyocyte Differentiation ◽  
Differentiation Markers ◽  
Oct4 Expression

Endocrine disruptors (ED) may have adverse impacts on reproductive and immune systems in human and wild animals. It has been shown that octyl-phenol (OP) and nonyl-phenol (NP) have estrogenicity in estrogen-responding cells or tissues. In this study, we further investigated the effect(s) of OP and NP on the expression of undifferentiation and differentiation markers in mouse embryonic stem cells (ESC), which function as an important factor in the differentiation of ESC into cardiomyocytes. Mouse ESC were cultured in hanging drops to form embryoid bodies (EB). The medium was replaced with phenol red-free DMEM/F-12 supplemented with 5% charcoal-dextran-stripped FBS. The ESC were treated with OP, NP (1Ã-10-6 and 1Ã-10-7 M) or 17β-estradiol (E2; 1Ã-10-8 and 1Ã-10-9 M) in a time-dependent manner (1, 2 and 3 days), and EB were treated with identical concentrations for 4 and 8 days, respectively. High increasing doses of OP and NP were employed in this study because a binding affinity of ED to estrogen receptors (ER) is about 1000 less than that of E2. We determined the mRNA expression of undifferentiation markers (Oct4, Sox2 and Zfp206) and cardiomyocyte differentiation markers (cardiac alpha-MHC, beta-MHC and myosin light chain isoform-2V) using real-time PCR. In ESC, undifferentiation markers were identified. It is of interest that treatment with OP, NP or E2 induced a significant increase (1.4 5.5-fold) in Oct4 expression at the transcription levels according to a dose- and time-dependent manner. However, no difference was observed in the expression of Sox2 and Zfp206 genes in ESC, suggesting that OP and NP may play a role as an Oct4 enhancer in ESC. In addition, both undifferentiation and cardiomyocyte differentiation markers were identified in EB. Treatment with OP and NP induced a significant increase in the expression of Oct4, Sox2 and Zfp206 genes at the transcription levels in a dose-dependent manner for 4 days, whereas Oct4 expression was only induced at these doses for 8 days. In contrast, cardiomyocyte differentiation markers were reduced by these ED in EB. Taken together, these results suggest that OP and NP play a role as a positive regulator in the undifferentiation process of ESC and EB, and maintenance and differentiation of mouse ESC.

scholarly journals Effect of bisphenol A on pluripotency of mouse embryonic stem cells and differentiation capacity in mouse embryoid bodies

2013 ◽  
Vol 27 (8) ◽  
pp. 2249-2255 ◽  
Author(s):  
Xiaojiao Chen ◽  
Bo Xu ◽  
Xiumei Han ◽  
Zhilei Mao ◽  
Prue Talbot ◽  
...  
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Bisphenol A ◽  
Embryonic Stem ◽  
Mouse Embryonic Stem Cells ◽  
Embryoid Bodies ◽  
Differentiation Capacity

Cells differentiated from mouse embryonic stem cells via embryoid bodies express renal marker molecules

2006 ◽  
Vol 74 (2-3) ◽  
pp. 91-104 ◽  
Author(s):  
Jan Kramer ◽  
Jürgen Steinhoff ◽  
Matthias Klinger ◽  
Lutz Fricke ◽  
Jürgen Rohwedel
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Mouse Embryonic Stem Cells ◽  
Embryoid Bodies

scholarly journals Role of estrogen receptor beta in neural differentiation of mouse embryonic stem cells

2017 ◽  
Vol 114 (48) ◽  
pp. E10428-E10437 ◽  
Author(s):  
Mukesh K. Varshney ◽  
José Inzunza ◽  
Diana Lupu ◽  
Vaidheeswaran Ganapathy ◽  
Per Antonson ◽  
...  
Keyword(s):  
Stem Cells ◽  
Estrogen Receptor ◽  
Embryonic Stem Cells ◽  
Neurodegenerative Diseases ◽  
Estrogen Receptor Beta ◽  
Embryonic Stem ◽  
Mouse Embryonic Stem Cells ◽  
Embryoid Bodies ◽  
And Migration ◽  
Receptor Beta

The ability to propagate mature cells and tissue from pluripotent stem cells offers enormous promise for treating many diseases, including neurodegenerative diseases. Before such cells can be used successfully in neurodegenerative diseases without causing unwanted cell growth and migration, genes regulating growth and migration of neural stem cells need to be well characterized. Estrogen receptor beta (ERβ) is essential for migration of neurons and glial cells in the developing mouse brain. To examine whether ERβ influences differentiation of mouse embryonic stem cells (mESC) into neural lineages, we compared control and ERβ knockout (BERKO) mESCs at defined stages of neural development and examined the effects of an ERβ-selective ligand (LY3201) with a combination of global and targeted gene-expression profiling and the expression of key pluripotency markers. We found that ERβ was induced in embryoid bodies (EBs) and neural precursor cells (NPCs) during development. Proliferation was higher in BERKO NPCs and was inhibited by LY3201. Neurogenesis was reduced in BERKO ES cells, and oligodendrogliogenesis was enhanced. BERKO EBs expressed higher levels of key ectodermal and neural progenitor markers and lower levels of markers for mesoderm and endoderm lineages. ERβ-regulated factors are involved in cell adhesion, axon guidance, and signaling of Notch and GABA receptor pathways, as well as factors important for the differentiation of neuronal precursors into dopaminergic neurons (Engrailed 1) and for the oligodendrocyte fate acquisition (Olig2). Our data suggest that ERβ is an important component for differentiation into midbrain neurons as well as for preventing precocious oligodendrogliogenesis.

Sign in / Sign up

Export Citation Format

Share Document