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(Biyokimya) stem cell
A primal undifferentiated cell from which a variety of other cells can develop through the process of cellular differentiation

Stem cells are characterized by their ability to self-renew and to produce numerous differentiated cell types, and are directly responsible for generating and maintaining tissues and organs.

The immature cells in blood and bone marrow from which all mature blood cells develop
Stem cells give rise to normal blood components including red cells, white cells and platelets Stem cells are normally located in the bone marrow and in the blood and can be harvested for a transplant
A primitive, unspecialized cell that has the capacity to develop highly specialized function when grown in the appropriate environment and treated with specific growth factors Stem cells for the retina reside in the ciliary body, a specialized structure that sits on either side of the iris, near the retina They usually lie dormant in the adult Stem cells have now been isolated and are being evaluated as a potential source for RPE and photoreceptor cells for transplants
Cell from which platelets, red blood cells and white blood cells grow in the bone marrow
Cells that, upon division, produce a differentiated cell line (eg, stem cells in basal layers of skin, in haematopoietic tissue, etc )
A cell with unlimited reproductive capacity: daughter cells may differentiate into other cell types
a cell that upon division replaces its own numbers and also gives rise to cells that differentiate further into one or more specialized types
These are primitive cells in marrow that are required to make red cells, white cells and platelets (see “hematopoiesis”) Generally, the stem cells are largely found in the marrow but some leave the marrow and circulate in the blood Using special techniques, the stem cells in blood can be collected, preserved by freezing and, later, thawed and used for stem cell therapy
a precursor cell from which blood cells are derived
Cells that have the ability to proliferate indefinitely, are not terminally differentiated, and whose daughter cells can differentiate down a cell line
A stem cell is a type of cell that can produce other cells which are able to develop into any kind of cell in the body. An unspecialized cell that gives rise to a specific specialized cell, such as a blood cell. a special type of cell in the body that can divide in order to form other types of cells that have particular qualities or purposes
1 one of the mitotically active somatic cells that serve to replenish those that die during the life of the metazoan organism 2 one of the mitotically active germinal cells that produce a continuing supply of gametes
an unspecialized cell that gives rise to differentiated cells Stem cells have the ability to proliferate indefinitely Stem cells have been isolated from adult skin, fat, brain, bone marrow and other tissues Embryonic stem cells are derived from fertilized embryos which have undergone only a limited number of cell divisions from the zygote stage (see pluripotent and totipotent)
An undifferentiated precursor cell that retains the ability to give rise to a variety of cell types In the nervous system, stem cells can give rise to various neuron subtypes and to glial cells
a precursor cell from which blood cells are derived As they mature, stem cells evolve into various types of red and white blood cells and platelets Stem cells are located in the bone marrow, the site of blood cell production Stem cells divide rapidly and are vulnerable to chemotherapy and radiation
"mother" blood cells from which several different types of blood cells evolve
A type of primitive cell that can transform into and generate other cells
An early cell that matures into various types of blood cells
A cell capable of forming all the cells in a person's blood system
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