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Immunohistochemical study of the distribution of sodium-dependent vitamin C transporters in adult rat brain

Cited 56 time in Web of Science Cited 61 time in Scopus
Authors

Mun, Ga Hee; Kim, Myeung Ju; Lee, Ju Hyun; Kim, Hyun Jun; Chung, Yoon Hee; Chung, Young Bae; Kang, Jae Seung; Hwang, Young Il; Oh, Seung Ha; Kim, Joong-Gon; Hwang, Douk Ho; Shin, Dong Hoon; Lee, Wang Jae

Issue Date
2006-02-16
Publisher
Wiley-Blackwell
Citation
J Neurosci Res. 2006 Apr;83(5):919-28.
Keywords
AnimalsBlotting, WesternBrain/*metabolismImmunohistochemistryMicroglia/metabolismNeurons/metabolismOrganic Anion Transporters, Sodium-Dependent/*metabolismRatsReverse Transcriptase Polymerase Chain ReactionSymporters/*metabolism
Abstract
Sodium-dependent vitamin C transporters (SVCTs) is known to transport the reduced form of ascorbic acid into the cell, whereas the oxidized form of vitamin C (VC) is moved through a facilitative sugar transporter, such as glucose transporter (GLUT). With regard to the distribution of SVCT1 and -2 within the various organs, they were reported to be expressed in different types of cells. Especially in the central nervous system, only SVCT2 mRNA was expressed mainly in neurons and some types of neuroglial cells. However, data on the expression of SVCT proteins in the brain are scant. Therefore, we tried to develop comprehensive data on the distribution of SVCT proteins in adult rat brain by using immunohistochemical techniques for the first time. In our study, SVCT2 immunoreactivities (IRs) were intensely localized in the neurons of cerebral cortex, hippocampus, and Purkinje cells of cerebellum, and much weaker SVCT2 IRs were found in the other brain regions. Judging from double-immunohistochemical data, most of the cells expressing SVCT2 IRs were likely to be neurons or microglia, even though the cells in choroids plexus or ependymal cells around the ventricles also exhibited SVCT2 IRs. Complete mapping of the distribution of SVCT2 IRs was available by using a semiquantitative method. The subcellular localization of SVCT proteins is necessary for understanding the exact role of the protein, so the current overall mapping of SVCT IRs in the rat brain could be the basis for further studies on related subjects.
ISSN
0360-4012 (Print)
Language
English
URI
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16477646

https://hdl.handle.net/10371/15954
DOI
https://doi.org/10.1002/jnr.20751
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