title: Differential expression of FABP 3, 5, 7 in infantile and adult monkey cerebellum.
abstract: To clarify the involvement of fatty acid binding proteins (FABPs) in cerebellar development and function, we explored the distribution of three brain-expressed FABPs, FABP 3, 5 and 7, by comparing three animal groups--infantile, normal and postischemic adult monkeys. Immunoblotting analysis revealed intense expression of FABP 3 and 7, but not of FABP5, in the control and postischemic adult cerebellum. The protein levels of FABP7, but not of FABP 3 or 5, gradually increased until 2 weeks after the insult. Immunohistochemical analysis showed that cerebellar FABP3-positive cells were Purkinje cells and Bergmann glia. FABP5-positive cells were found only in the postischemic cerebellum, and were identified as activated microglia. Interestingly, in the infantile cerebellum, both the granule cell progenitors in the external granular layer (EGL) and the oligodendrocyte progenitors in the internal granular layer (IGL) expressed FABP5. In the adult cerebellum, FABP7 was expressed in Purkinje cells and basket interneurons, while in the infantile cerebellum it was also found in Bergmann glia. These results showed differential expression of FABPs in cerebellar neuronal and glial cell types; FABP 3 and 7 were predominantly expressed in normal cerebellum, FABP5 after ischemic injury, while FABP 3, 5 and 7 were expressed during cerebellar development.
authors.affiliation: Department of Restorative Neurosurgery, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan.
authors.forename: Nadezhda B
authors.initials: NB
authors.lastname: Boneva
authors.forename: Yoshimi
authors.initials: Y
authors.lastname: Mori
authors.forename: Desislav B
authors.initials: DB
authors.lastname: Kaplamadzhiev
authors.forename: Hiromu
authors.initials: H
authors.lastname: Kikuchi
authors.forename: Hong
authors.initials: H
authors.lastname: Zhu
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Kikuchi
authors.forename: Anton B
authors.initials: AB
authors.lastname: Tonchev
authors.forename: Tetsumori
authors.initials: T
authors.lastname: Yamashima
mesh_terms: D000367:Age Factors; D000704:Analysis of Variance; D000818:Animals; D000831:Animals, Newborn; D001973:Bromodeoxyuridine / Q000378:metabolism; D002531:Cerebellum / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism*; D050556:Fatty Acid-Binding Proteins / Q000145:classification / Q000378:metabolism*; D005452:Fluoresceins; D018507:Gene Expression Regulation, Developmental / Q000502:physiology*; D007511:Ischemia / Q000378:metabolism / Q000473:pathology; D008252:Macaca fascicularis; D009457:Neuroglia / Q000378:metabolism; D009474:Neurons / Q000378:metabolism; D009930:Organic Chemicals / Q000378:metabolism
chemical_list: D050556:Fatty Acid-Binding Proteins; D005452:Fluoresceins; D009930:Organic Chemicals; C435731:fluoro jade; D001973:Bromodeoxyuridine