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. 1985 Oct;82(19):6706–6710. doi: 10.1073/pnas.82.19.6706

Transferrin gene expression visualized in oligodendrocytes of the rat brain by using in situ hybridization and immunohistochemistry.

B Bloch, T Popovici, M J Levin, D Tuil, A Kahn
PMCID: PMC391279  PMID: 3901006

Abstract

The presence and production of transferrin in the adult rat brain have been investigated using both immunohistochemistry and in situ hybridization in tissue sections. Indirect immunofluorescence with four distinct antisera against rat and human transferrin and one monoclonal antibody against human transferrin demonstrated labeling of the cytoplasm of oligodendrocytes (a category of glial cells) in most parts of the brain, especially in the white matter. In situ hybridization using rat transferrin 32P-labeled cDNA as a probe revealed the presence of transferrin mRNA in glial cells whose appearance, distribution, and organization exactly matched those of the cells decorated with the transferrin antibodies. These results provide evidence that the transferrin gene is expressed in the central nervous system and that transferrin is synthesized by and stored within oligodendrocytes in the adult rat brain. These data suggest that this molecule could have a specific function in nervous system activity.

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