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  • Title: [An analysis of lymphokine gene expression within astrocytoma].
    Author: Nitta T, Steinman L, Sato K.
    Journal: No Shinkei Geka; 1992 Jul; 20(7):763-8. PubMed ID: 1630567.
    Abstract:
    Expression of the lymphokine genes in human astroglial cell lineage was studied. Primers for 9 different human lymphokines, from IL-1 alpha to IL-8, were used to analyze RNA transcripts in 5 cultured human astrocytoma, one neuroblastoma cell line and 4 fresh brain specimens by polymerase chain reaction (PCR). mRNA transcripts of neither IL-1 nor IL-3, the biological activities of which were observed in rat primary cultured astrocytes, could be detected within these cell lines. Two out of 5 unstimulated astrocytomas, U138 and U373, expressed IL-6 genes. IL-8 gene was detected within U87, U138, U251, U373 glioma cells. After stimulation with IL-1 beta, all astrocytoma and one neuroblastoma cell line expressed IL-6 and IL-8 genes. In addition to the cultured cells, we examined IL-6 and IL-8 gene expression within human malignant astrocytoma specimens. The result shows that three out of four glioma specimens expressed IL-6 and IL-8 genes. From these results, it is suspected that astroglial cell-derived IL-6 or IL-8 may participate in local immune reactions accompanying infection, degeneration and malignancies in the central nervous system.
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