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3.3 Stem cells and beyond

2 defining features of stem cells

1. Potency ­ ability to differentiate into cell types
2. Self renewal ­ divide continuously in an unspecialised state

EMBYONIC STEM CELLS

Earliest embryonic cells are totipotent (stem cells which can differentiate into all types of cells ). By…

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ADVANTAGES OF STEM DISADVANTAGES OF STEM
CELL THERAPY CELL THERAPY
Tailor made cells to replaceIt can cause cancers to
damaged ones would develop this is evident in
revolutionise medicine. people who have had bone
marrow transplant
Glycoprotein on the However, the immune system
surface of your cell can attack the…

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Donated cells are identical
so there are no problems
with rejection


WHO COULD BENIFIT FROM STEM CELL THERAPY

PARKISONS DISEASE

Brain disorder affecting people over 65yrs old
Nerve cells that produce dopamine stop working , as dopamine levels fall , people develop
uncontrollable tremors in their body . Leading to…

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