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To ensure proper temporal differentiation as well as correct quantities of glial cell formation, gliogenesis is subjected to stringent regulatory mechanisms. Proneural factors are expressed in high concentrations during times in which glial cells are not to form or neuron development is needed.
Glial cells known as astrocytes enlarge and proliferate to form a scar and produce inhibitory molecules that inhibit regrowth of a damaged or severed axon. In the peripheral nervous system (PNS), glial cells known as Schwann cells (or also as neuri-lemmocytes) promote repair. After axonal injury, Schwann cells regress to an earlier ...
The two main types of cells in the brain are neurons, also known as nerve cells, and glial cells, also known as neuroglia. [1] There are many types of neuron, and several types of glial cell. Neurons are the excitable cells of the brain that function by communicating with other neurons and interneurons (via synapses ), in neural circuits and ...
Satellite glial cells, formerly called amphicytes, [1] are glial cells that cover the surface of neuron cell bodies in ganglia of the peripheral nervous system. Thus, they are found in sensory , sympathetic , and parasympathetic ganglia .
These cells are one of the major neural-crest-derived cell lineages, found throughout the gastrointestinal tract. The enteric glial cells play a variety of roles, such as modulating nociception (pain sensation), exerting immune functions , and coordingating gastrointestinal motility .
This means they can generate neurons and glial cells which are the two main components of neural systems. The fate of these cells is controlled by several factors that affect the differentiation process. The spatial location and temporal attributes of neural progenitor cells can influence if the cells form neurons or glial cells.
Oligodendrocytes are a type of glial cell, non-neuronal cells in the central nervous system.They arise during development from oligodendrocyte precursor cells (OPCs), [8] which can be identified by their expression of a number of antigens, including the ganglioside GD3, [9] [10] [11] the NG2 chondroitin sulfate proteoglycan, and the platelet-derived growth factor-alpha receptor subunit (PDGF ...
Gliotransmitters are chemicals released from glial cells that facilitate neuronal communication between neurons and other glial cells. They are usually induced from Ca 2+ signaling, [1] although recent research has questioned the role of Ca 2+ in gliotransmitters and may require a revision of the relevance of gliotransmitters in neuronal signalling in general.
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