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  • Title: Localization of nerve growth factor receptor messenger RNA and protein in the adult rat brain.
    Author: Koh S, Oyler GA, Higgins GA.
    Journal: Exp Neurol; 1989 Dec; 106(3):209-21. PubMed ID: 2556291.
    Abstract:
    We have used in situ hybridization and immunocytochemistry to map the cellular localization of NGF receptor (NGF-R) mRNA and protein in the adult rat brain. In addition to basal forebrain magnocellular neurons, NGF-R is widely expressed within the CNS, including neurons of the caudate/putamen, ventral premamillary nucleus, mesencephalic trigeminal nucleus, prepositus hypoglossal nucleus, raphe nucleus, nucleus ambiguous, and Purkinje cells of the cerebellum. Cells of the vestibulocochlear ganglion also contain NGF-R mRNA and protein. Ventricular subependymal cells and tanycytes are clearly stained by immunocytochemistry, yet only very weak hybridization is detectable in these cells. Also, greater amounts of NGF-R protein than of mRNA appear to be present in the glomeruli of the olfactory bulb, area postrema, and nucleus tractus solitarius. Areas that contain only NGF-R immunoreactive fibers and terminals can be distinguished from the cellular sites of NGF-R biosynthesis and include the suprachiasmatic nucleus, the principal olivary pretectal nucleus, the superior colliculus, the inferior olive, and the principal and spinal trigeminal nuclei. This study shows that NGF-R is widely expressed within individual neurons in different areas of the rat brain and identifies new potential CNS target sites of endogenous NGF.
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