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A cell must meet two basic key criteria in order to be considered a stem cell:
1. Able to differentiate into multiple cell types upon induction.
2. Able to remain in an undifferentiated state over numerous cell divisions when not induced to differentiate.
There are numerous "stem cells", some with more potential than others. An embryonic stem cell is pluripotent by definition because it is able to become any cell in the body (though this is difficult in practice). Other stem cells are more restricted, such as the hematopoietic stem cell, which can only form the cell types found in blood and the immune system.
A new form of cell called an induced pluripotent stem cell (iPS), can be generated by turning on at least 2 specific genes in skin or other non-stem cells. This is commonly done through use of a viral vector such as a retrovirus although it is now possible to avoid the use of virus. Preliminary studies indicate that iPS cells have identical capabilities as embryonic stem cells which may negate the need to derive embryonic stem cells from embryos. Still, everything we know about pluripotent stem cells comes from studies of embryonic stem cells and thus they are an integral part of the quest for therapeutic uses for stem cells.
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What are the types of stem cells?
There are five basic stem cells classifications there is embryonic stem cells, fetal stem cells. There are the Umbilical cord stem cells, placenta stem cells, and lastly there are adult stem cells.
How many different types of tissue stem cells are there?
There are three different types of tissue stem cells in the body. They include the tissue stem cells also known as adult stem cells, embryonic stem cells, and induced pluripotent stem cells.
What kind of stem cells can only develope into cells that are closely related to the original stem cells?
Multipotent stem cells
What kind of stem cells can only develop into cells that are closely related to the original stem cells?
Multipotent stem cells
What kind of stem cells can develop from unipotent stem cells?
What kind(s) of cells can develop from unipotent stem cells
What type of cells have the ability to divide and produce new cells throughout their lifetime?
Pluripotent stem cells.
Cells that retain the ability to divide continuously without specializing are called?
Stem cells are cells that are able to divide continuously without specializing. These kind of cells are undifferentiated biological cells.
What are the three types of stem cells in adults?
The three types of stem cells in adults are hematopoietic stem cells (found in bone marrow and produce blood cells), mesenchymal stem cells (found in various tissues like bone marrow and fat, can differentiate into bone, cartilage, and fat cells), and neural stem cells (found in the brain and spinal cord, can differentiate into neurons and supporting cells).
Are stem cells human?
Yes, some stem cells do come from humans. The stem cells are taken from embryos. Animals also have stem cells used in research.
Why do researchers prefer to use embryonic stem cell stem cells instead of adult stem cells?
embryonic stem cells can differentiate into more types of cells
Where do scientists take stem cells from?
There are two types of stem cells: Embryonic Stem Cells and Adult Stem Cells.Embryonic stem cells are isolated from:The blastocystAdult Stem Cells are isolated from: Bone MarrowFats or Lipids (Known as Adipose Tissue)Blood
What are unspecialized human cells called?
Unspecialized human cells are typically referred to as stem cells. These cells have the potential to develop into different types of cells in the body.
