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Mouse Embryonic Fibroblasts (MEFs) are a type of fibroblast prepared from mouse embryo. MEFs show a spindle shape when cultured in vitro, a typical feature of fibroblasts. The MEF is a limited cell line. After several transmissions, MEFs will senesce and finally die off.
The primary mouse embryonic fibroblast cells were transferred (the "T") every 3 days (the first "3"), and inoculated at the rigid density of 3 × 10 5 cells per 20 cm 2 dish (the second "3") continuously. [2] The spontaneously immortalized cells with stable growth rate were established after 20 to 30 generations in culture, and then named '3T3 ...
However, three separate groups were able to find mouse embryonic fibroblast (MEF)-derived iPS cells that could be injected into tetraploid blastocysts and resulted in the live birth of mice derived entirely from iPS cells, thus ending the debate over the equivalence of embryonic stem cells (ESCs) and iPS with regard to pluripotency. [41]
MEF International School Istanbul; Middle East Forum, an American conservative think tank; Ministerio de Economía y Finanzas, the Peruvian ministry of economics and finance; Ministerio de Economía y Finanzas, the Uruguayan ministry of economics and finance; Ministero dell’Economia e delle Finanze, the Italian ministry of economics and finance
In the derivation of human embryonic stem cell lines, embryos left over from in vitro fertilization (IVF) procedures are used. The fact that the blastocyst is destroyed during the process has raised controversy and ethical concerns. Embryonic stem cells are pluripotent, meaning they can differentiate to form all cell types in the body. In vitro ...
Anatomical terms of microanatomy [ edit on Wikidata ] A fibroblast is a type of biological cell typically with a spindle shape [ 1 ] that synthesizes the extracellular matrix and collagen , [ 2 ] produces the structural framework ( stroma ) for animal tissues , and plays a critical role in wound healing . [ 3 ]
EBs are differentiation of human embryonic stem cells into embryoid bodies comprising the three embryonic germ layers. They mimic the characteristics seen in early-stage embryos. They are often used as a model system to conduct research on various aspects of developmental biology.
The earliest specification in mouse embryos occurs between trophoblast and inner cell mass cells in the outer polar cells and the inner apolar cells respectively. These two groups become specified at the eight-cell stage during compaction, but do not become determined until they reach the 64-cell stage.