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Both cells later produce one or two neural cells (N). A progenitor cell is a biological cell that can differentiate into a specific cell type. Stem cells and progenitor cells have this ability in common. However, stem cells are less specified than progenitor cells. Progenitor cells can only differentiate into their "target" cell type. [1]
This molecule is one of the genes widely used now to reprogram adult non-stem cells into pluripotent stem cells. Since then, neural progenitor and stem cells have been isolated from various areas of the adult central nervous system, including non-neurogenic areas, such as the spinal cord, and from various species including humans. [39] [40]
Neural stem cells, which only divide symmetrically to produce more neural stem cells, transition gradually into radial glial cells. [5] Radial glial cells, also called radial glial progenitor cells, divide asymmetrically to produce a neuroblast and another radial glial cell that will re-enter the cell cycle. [5] [3]
Death of neural progenitor cells has recently been linked the mosquito-borne virus, Zika. [28] Epidemiological evidence indicates infection of the embryo within the first two trimesters of pregnancy has potential to cause fetal birth defects and microcephaly , [ 29 ] possibly due to the death of progenitor cells.
A neural progenitor cell is distinct from a neural stem cell since it is incapable of continuous self-renewal and usually has the capacity to give rise to only one class of differentiated progeny. They are tripotent cells which can give rise to neurons, astrocytes and oligodendrocytes.
Neuroepithelial cells are the stem cells of the central nervous system, known as neural stem cells, and generate the intermediate progenitor cells known as radial glial cells, that differentiate into neurons and glia in the process of neurogenesis.
In rodents for example, neurons in the central nervous system arise from three types of neural stem and progenitor cells: neuroepithelial cells, radial glial cells and basal progenitors, which go through three main divisions: symmetric proliferative division; asymmetric neurogenic division; and symmetric neurogenic division.
In embryonic life, the SVZ refers to a secondary proliferative zone containing neural progenitor cells, which divide to produce neurons in the process of neurogenesis. [3] The primary neural stem cells of the brain and spinal cord, termed radial glial cells , instead reside in the ventricular zone (VZ) (so-called because the VZ lines the inside ...
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