Oxygen supply and oxygen-dependent gene expression in differentiating embryonic stem cells.

Oxygen supply and oxygen-dependent gene expression in differentiating embryonic stem cells.

Blastocyst-derived pluripotent mouse embryonic stem cells can differentiate in vitro to form so-called embryoid bodies (EBs), which recapitulate several aspects of murine embryogenesis. We used this in vitro model to study oxygen supply and consumption as well as the response to reduced oxygenation during the earliest stages of development. EBs were found to grow equally well when cultured at 2...

Comparing the Expression Levels of Alkaline Phosphatase, Gfra1, Lin28, and Sall4 Genes in Embryonic Stem Cells, Spermatogonial Stem Cells, and Embryonic Stem-Like Cells in Mice

Background and purpose: Spermatogenesis is a well-organized process that is influenced by a variety of factors. Alkaline phosphatase, and Gfra1, Lin28, and Sall4 genes are among the key players in this interconnected process. This study aimed to investigate the expression levels of Gfra1, Lin28, and Sall4 genes in embryonic, spermatogonial, and embryonic stem-like (ES-like) cells in mice. Mate...

Mesenchymal Stem/Stromal-Like Cells from Diploid and Triploid Human Embryonic Stem Cells Display Different Gene Expression Profiles

Background: Human ESCs-MSCs open a new insight into future cell therapy applications, due to their unique characteristics, including immunomodulatory features, proliferation, and differentiation. Methods: Herein, hESCs-MSCs were characterized by IF technique with CD105 and FIBRONECTIN as markers and FIBRONECTIN, VIMENTIN, CD10, CD105, and CD14 genes using RT-PCR technique. FACS was performed fo...

Oxygen-dependent gene expression in fishes.

The role of oxygen in regulating patterns of gene expression in mammalian development, physiology, and pathology has received increasing attention, especially after the discovery of the hypoxia-inducible factor (HIF), a transcription factor that has been likened to a "master switch" in the transcriptional response of mammalian cells and tissues to low oxygen. At present, considerably less is kn...

Reactive oxygen species as regulators of oxygen dependent gene expression.