1. Stem Cell Topic: Findings and Recommendations
from animal studies that stem cells can be made to
differentiate into cells of choice, and that these cells will act properly in
their transplanted environment. In
human beings, transplants of hematopoietic stem cells (the cells
2. Stem Cell Topic: Stem Cells: What Are They?
Stem Cells : What Are They?
types of stem cells exist in the human body. All have the capacity to replicate,
to self-renew; and they have the capacity to differentiate in order to produce
specific body parts such as muscle cells,
3. Stem Cell Topic: Human Adult Stem Cells
tissues of the body require
stem cells for normal turnover and repair.
Stem cells that are found in developed tissue, regardless of the age of
the organism at the time, are referred to as adult stem cells. The most well-known example of this are
4. Stem Cell Topic: Moral Issues Surrounding the Sources of Stem Cells
Surrounding the Sources of Stem Cells
At present, there are three possible sources of stem cells: adult stem
cells derived from pediatric or adult donors; embryo germ cell stem cells (EG
cells ) derived from aborted fetuses; and embryonic
5. Stem Cell Topic: The Moral Status of Human Stem Cells
putting this is to say that
stem cells are pluripotent rather than totipotent . It is true that advanced
technology might be able to render these cells effectively (if not actually)
totipotent. Research undertaken in Canada in 1993 involving the
6. Stem Cell Topic: Question: What is the Embryonic Status of Totipotent and Pl...
Why is it that pluripotent stem
cells are one step down the embryonic staircase? Totipotent
stem cells are capable of producing all tissue, including the trophoblast
necessary for implantation. Totipotent stem cells have the potential
7. Stem Cell Topic: Sources of Stem Cells and Guidelines for Use
embryo to participate in stem cell research to the greatest degree
possible, stem cells (and stem cell lines) should be identified with respect
to their provenance. Patients and
researchers should be able to avoid participating in
8. Stem Cell Topic: Human Embryonic Stem Cells
Human Embryonic Stem Cells
The study of human stem cells
has barely begun and what is known is summarized in this section. The vast majority of experimental data
discussed here are the results of experiments in mice. ES cells from
9. General Term: Stem Cells
Stem Cells Stem cells are
essentially undifferentiated cells. There
are many kinds of stem cells, some more differentiated than others.
When they divide, their progeny mature and specialize into a specific
type of cell (i.e.
10. Stem Cell Topic: Funding
of the potential of
human stem cells from these various sources.
Embryonic stem cells (ES cells ) derived from early embryos and embryonic
germ cells (EG cells) have particular promise for a wide range of therapeutic
applications because they