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STEM CELL (FUTURE RESEARCH AREAS more research is required to find out how…
STEM CELL
FUTURE RESEARCH AREAS
more research is required to find out how stem cells can be:-
multiplied for extended periods of time
directed to form specific types of specialized cells
kept alive in the laboratory
Prof Harry Moore used stem cells to regain sight
located and extracted
TYPES
Embryonic Germ cells
derived from the part of human embryo/foetus that will ultimately produce gametes
eg: eggs or sperm
Adult Stem Cells
undifferentiate cells found among specialized cells in a tissue or organ after birth
appear to have more restricted ability to produce different types of cell than embryotic stem cells
eg: somatic cell
Embryonic Stem Cells
from a 5-6 day old embryo
have the ability to form virtually any type of cell found in the human body
Umbilical Cord blood stem cells
used to treat a range of blood disorders & immune system conditions
DEVELOPMENT POTENTIAL
Multipotent
Stem cells that only have the potential to make a few cell types in the body
eg: Adult Stem Cell
Totipotent
Cells that are capable of forming a completely new embryo that can develop into a new organism
eg: fertilized egg
none of stem cell used in research appear to have this capacity
Pluripotent
having potential to develop into any of the cell types found in an adult organism
eg: Embryonic Stem Cell