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An Analysis of Lymphokine Gene Expression within Astrocytoma Taizo NITTA 1,2 , Lawrence Steinman 1 , Kiyoshi SATO 2 1Department of Neurology and Neurological Science, Stanforol University School of Medicine 2Department of Neurosurgery, Juntendo University School of Medicine Keyword: Lymphokine , Gene , Interleukin−6 , Interleukin−8 Astrocytoma , Polymerase chain reactioon pp.763-768
Published Date 1992/7/10
DOI https://doi.org/10.11477/mf.1436900490
  • Abstract
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Expression of the lymphokine genes in human astroglial cell lineage was studied. Primers for 9 diffe-rent human lymphokines, from IL-1 α 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 biolo-gical 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 de-tected within U87, U138, U251, U373 glioma cells. Af-ter stimulation with IL-1 β , 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 astrocy-toma 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.


Copyright © 1992, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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