sources of stem cells

Posted: August 2, 2010 in Uncategorized
  1. embryonic stem cells
  • derived from human embryos that are a few days old
  • have the potential to become almost any type of cell
  • difficult to manipulate
  • ethically contentious as the embryo is destroyed in the process of ESC extraction.

2.  foetal stem cells

  • derived from aborted human fetuses
  • have the potential to become many of the cell types
  • ethically contentious & limited availability

3.  cord blood & placental stem cells

  • derived from umbilical cord blood & placentas
  • already used in a variety of therapies
  • easily extractable
  • can currently only form a limited number of cell types
  • available in low concentration

4.  adult stem cells

  • found in all humans
  • already in use for some therapies
  • sometimes difficult to access
  • can currently form a limited number of cell types.
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