embryonic stem cell

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embryonic stem cell

totipotent cells composing the inner cell mass of the blastocyst.

embryonic stem cell

Abbreviation: ES cell
A cell from the inner cell mass of the blastocyst (the 3-5 day old mammalian embryo) that can give rise to all the somatic cells of the body. Embryonic stem cells can be maintained as pure stem cell cultures.
See: adult stem cell
See also: cell

embryonic stem cell (ESC)

1. A cell taken from an early embryo and intended for therapeutic application of its totipotential property.
2. A cell derived from an embryo resulting from a donated egg whose nucleus has been removed and replaces by a cell from a prospective patient. During pregnancy some ESCs pass across the placental barrier and enter the mothers bloodstream. There are suggestions that these stem cells may repair damaged maternal organs, including the brain. Cells can be derived from umbilical cord blood that appear to have most of the properties of ESCs.
References in periodicals archive ?
Embryonic stem cells (ESC) have the ability to self-renew and, being pluripotent, have the potential to create almost any cell type in the body.
"Previous methods have succeeded in producing human astrocytes from embryonic stem cells, but it has taken months.
Embryonic stem cells (ESCs) were first isolated from mouse embryos in 1981, and the word "embryonic stem cell" was first coined by Gail R.
Embryonic stem cells also face an insurmountable barrier for their acceptance by many people: harvest of embryonic stem cells requires the destruction of a human embryo, a young human life barely started on its existence yet the biological truth is clear: one of us.
Because human embryonic stem cells are different from our own body's cells, or "allogenic," a normally functioning human immune system will attack these foreign cells.
If cloned human cells could be made to grow into normal embryos, the technique could supply fresh stocks of embryonic stem cells.
In a statement, released on 9 October, the European Parliament's Platform for Secularism in Politics (EPPSP) notes that the discovery must not serve as a pretext for hindering research on embryonic stem cells. Stem cell research is therapeutically promising and should be encouraged in all its options, notes the EPPSP.
Scientists are attempting to find an alternative using adult stem cells that are "reprogrammed" to their original, embryonic state, but it is unclear as yet whether or not those cells are really identical to embryonic stem cells, and researchers need embryonic stem cells to make comparisons.
23, a federal judge handed down a ruling that barred the use of federal funds for any research involving human embryonic stem cells. As a result of the temporary injunction, the National Institutes of Health stopped accepting submissions of information on human embryonic stem cell lines for NIH review and has also suspended all review of embryonic stem cell lines.
No treatments based on embryonic stem cells or iPS cells are approved yet in the United States.
Geron helped finance the isolation of the first human embryonic stem cells at the University of Wisconsin in the late 1990s, so it holds certain patent rights on use of the cells.
The NIH has already authorized 31 grants worth about $21 million for research on human embryonic stem cells, for a variety of research projects including work aimed at developing cells that could be used to treat diseases of the heart and nervous system.