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Stem Cells

Terms in this set (16)

-Cells that serve as a normal reservoir for new cells needed to replace damaged or dying cells
What are stem cells?
Undifferentiated cells that become the kinds of cells that make up your body and replace old cells when they wear out and die
Stem cells
A cell doesn't have a job yet
Undifferentiated cells
Already has a specific job to do within the body
Differentiated cell
-Found in all people and are used to replace cells in many kinds of tissue as they wear out and die (think bone marrow)
-Multipotent
Adult stem cells
Cell has ability to become several different kinds of cells. More of its DNA has been turned off.
Multipotent
-process to artificially form embryonic stem cells by unspecializing a typical somatic cell
Induced Pluripotent Stem cell
cloning by nuclear transfer
Nuclear Transplant Stem cells
Umbilical cord stem cells/bone marrow/"adult"
multipotent stem cell
Can differentiate into most types cell in the body (with the exception of zygote)
-Embryonic stem cells, induced pluripotent
Pluripotent
-Can become any tissue, even the extra-embryonic tissue
-Ex: fertilized egg
Totipotent
-Similar cells found in bone marrow, under skin
-Tissue specific stem cells have been derived from brain, bone marrow, blood, skeletal muscle, skin, teeth, heart, liver, gut, ovarian epithelium, and testes
Examples of adult stem cells
-Regeneration of damaged or lost bone tissue
- insulin-producing cells to treat diabetes
-Treatment of bone & blood cancers
-repair nerve /paralysis/Parkinson's disease
- Repair of some damaged heart tissue
Disease possible be helped by stem cells
Created by iPS (reprogram a somatic cell)
blastocyts (from extra IVF attempts)
Source pluripotent Stem cells
Embryonic
Which stem cell has the most potential for treating diseases?
structure that holds embryonic stem cells
blastocyst inner cell mass
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