Abstract
Abstract Gliosarcomas are an aggressive brain cancer that can become metastatic. Previously, we used a monoclonal antibody, designated H5, to isolate a tumor-associated antigen (TAA) expressed by 9L, a gliosarcoma line isolated from Fischer 344 (F344) rats. This TAA was tentatively identified as vimentin via mass spectrometry. In this project, we compared the level of vimentin mRNA in 9L cells to that of three types of glial cells: microglial cells, astrocytes, and oligodendrocytes isolated from F344 rats via qPCR. The level of vimentin mRNA in 9L cells was significantly upregulated as compared to the expression levels in all three types of glial cells. Similar research on carcinomas has identified vimentin as being involved in metastatic tumors and is now used as a genetic marker of this specific type of cancer. This research suggests that vimentin mRNA in 9L undergoes similar upregulation to that of carcinomas.
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