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Stem Cells

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Stem Cells

STEM CELLS are like the building blocks of the human body. At the beginning of our lives, they divide over and over again to create us from an embryo. During our lifetime, they replenish cells in our blood, bone, skin, and organs to keep us alive and functioning. 

Stem cells hold 2 main characteristics which stand them out from other cell types in they human body:

Firstly, the ability to self-renew (perform mitosis), this is a part of the cell cycle when replicated chromosomes are separated into two new nuclei. This gives rise to identical replicated cells. 

Secondly,  the ability to differentiate into specialized cells such as cartilage, heart cells, liver cells, and neurons. No other cell in the body has the natural ability to generate new cell types.

Type of Stem Cells

Pluripotent

Source: Embryonic or Induced Pluripotent Stem Cells

Ability: Capable of giving rise to every cell type in the human body with unlimited self-renewal. 

multi-potent

Source: Adult or Fetal Tissue and Blood

Ability: Capable of giving rise to most cell types in the human body with limited self-renewal.    

Progenitor

Source: Adult or Fetal Tissue and Blood

Ability: Capable of giving rise to a few cell types in the human body with limited self-renewal.