Abstract
Microglia represent a population of resident cells of the central nervous system (CNS) which have attracted much interest because of their multiple functions. Two principal forms of microglia have been described. “Ameboid” cells, also referred as gitter cells or reactive microglia, which appear during the embryonal period and after brain lesions, are morphologically similar to macrophages (Giulian and Baker, 1986; Giulian, 1987). The second form of microglia, the “ramified” cells (Ling, 1981), appear during the late postnatal period and persist through adult life (Murabe and Sano, 1983). Although the nature of the relationship between ameboid and ramified microglia is controversial, ramified microglia are generally viewed as functional quiescent microglia that lack monocytic properties, but acquire ameboid features and reactivity in the presence of tissue damage (del Rio Hortega, 1919; 1932; Oemichen, 1983).
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Gremo, F. et al. (1997). Features and Functions of Human Microglia Cells. In: Filogamo, G., Vernadakis, A., Gremo, F., Privat, A.M., Timiras, P.S. (eds) Brain Plasticity. Advances in Experimental Medicine and Biology, vol 429. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9551-6_6
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