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An amniotic stem cell bank is a facility that stores stem cells derived from amniotic fluid for future use. Stem cell samples in private (or family) banks are stored specifically for use by the individual person from whom such cells have been collected and the banking costs are paid by such person.
Stem cells can also be taken from umbilical cord blood just after birth. Of all stem cell types, autologous harvesting involves the least risk. By definition, autologous cells are obtained from one's own body, just as one may bank their own blood for elective surgical procedures. [citation needed]
Cord blood is composed of all the elements found in whole blood – red blood cells, white blood cells, plasma, platelets. [6] Compared to whole blood some differences in the blood composition exist, for example, cord blood contains higher numbers of natural killer cells, lower absolute number of T-cells and a higher proportion of immature T-cells. [7]
The majority of stem cells present in the amniotic fluid share many characteristics, which suggests they may have a common origin. [1]In 2007, it was confirmed that the amniotic fluid contains a heterogeneous mixture of multipotent cells after it was demonstrated that they were able to differentiate into cells from all three germ layers but they could not form teratomas following implantation ...
Cord blood contains hematopoietic stem cells (which can differentiate only into blood cells), and should not be confused with embryonic stem cells or pluripotent stem cells, which can differentiate into any cell in the body. [2] [3] Cord blood stem cells are blood cell progenitors which can form red blood cells, white blood cells, and platelets ...
Cord blood banking [34] refers to the collection at birth, processing, testing, cryopreservation and storage of stem cells from the umbilical cord blood. Cord blood, also called "placental blood", is blood that remains in the umbilical cord and placenta following the birth of a baby and after the umbilical cord is cut.
In addition, the use of embryonic cells has been shown to develop into tumors such as teratocarcinomas and frequently acquire chromosomal errors, underscoring the benefits of utilizing amniotic stem cells. [27] Research has shown that cells from second trimester amniotic fluid are successful at differentiating into various cell lines. [28]
Embryonic stem cells (ESCs) are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage pre-implantation embryo. [ 1 ] [ 2 ] Human embryos reach the blastocyst stage 4–5 days post fertilization , at which time they consist of 50–150 cells.