Search results
Results from the WOW.Com Content Network
A photo of human embryonic stem cells (the cell colonies in the center). Spindle cells surrounding the stem cell colony are MEFs. 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.
The embryonic stem cells that incorporated the knocked-out gene are isolated from the unaltered cells using the marker gene from step 1. For example, the unaltered cells can be killed using a toxic agent to which the altered cells are resistant. The knocked-out embryonic stem cells from step 4 are inserted into a mouse blastocyst. For this ...
Modernized e-File (MeF), an electronic system for filing U.S. income taxes; Modified Energy Factor (Energy Star Rating Value, US Department of Energy (DOE)) Mouse Embryonic Fibroblast; Museo Paleontológico Egidio Feruglio collection code; Myocyte Enhancer Factor (2) Mouse Embryonic Fibroblast (MEF) Isolation Enzyme 1
In view of the potential clinical applications of stem cell-derived tissues or primary epithelial cells, the use of human fibroblasts as an alternative to MEF feeders has been studied. [14] Whereas the fibroblasts are usually used to maintain pluripotency of the stem cells, they can also be used to facilitate development of the stem cells into ...
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]
Nevertheless, for the latter, only a few have been described (in a 1984 paper). [20] [21] [22] Nevertheless, in 2018 genome editing allowed for bipaternal and viable bimaternal [23] [24] mouse and even (in 2022) parthenogenesis, still this is far from full reimprinting. [25] Finally in March 2023 viable bipaternal embryos were created. [26]
Much of the research central to embryonic stem cell differentiation and morphogenesis is derived from studies in developmental biology and mammalian embryogenesis. [15] For example, immediately after the blastocyst stage of development (from which ESCs are derived), the embryo undergoes differentiation, whereby cell specification of the inner ...
A clear answer to this question can be seen in the 2011 paper by Lister R, et al. [28] on aberrant epigenomic programming in human induced pluripotent stem cells. As induced pluripotent stem cells (iPSCs) are thought to mimic embryonic stem cells in their pluripotent properties, few epigenetic differences should exist between them.