COLONY-STIMULATING FACTOR-PRODUCING TUMORS - PRODUCTION OF GRANULOCYTE-COLONY-STIMULATING FACTOR AND INTERLEUKIN-6 IS SECONDARY TO INTERLEUKIN-1 PRODUCTION
COLONY-STIMULATING FACTOR-PRODUCING TUMORS - PRODUCTION OF GRANULOCYTE-COLONY-STIMULATING FACTOR AND INTERLEUKIN-6 IS SECONDARY TO INTERLEUKIN-1 PRODUCTION
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DOI:
10.1016/0959-8049(94)00347-8
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发表时间:
1994-01-01
影响因子:
8.4
通讯作者:
NAKAO, K
中科院分区:
文献类型:
--
作者:
TSUYUOKA, R;TAKAHASHI, T;NAKAO, K
We have reported that tumours producing colony-stimulating factor (CSF) also secrete Interleukin-1 (IL-1) and IL-6. In the present study, we characterised the role played by IL-1 in CSF production. IL-1 receptor antagonist inhibited the production of granulocyte (G)-CSF and IL-6 by approximately 90% in CSF-producing human lung carcinoma cell lines. Similar results were obtained with hydrocortisone, which suppresses IL-1 gene expression. In contrast, 15 non-CSF-producing human lung carcinoma cell lines did not show detectable IL-1 production, although seven of them were induced to produce G-CSF and IL-6 by exogenous IL-1 alpha. Cell lines that responded to IL-1 alpha, including the GSF-producing lines, expressed receptors for IL-1 alpha. These results indicate that CSF-producing tumours can be characterised by their constitutive IL-1 production, IL-1 receptor expression and IL-1-dependent excess production of G-CSF and IL-6. Furthermore, transcription factor(s) may be involved in the abnormal IL-1 alpha production.