Title : Hypoxia-induced IL-6 production is associated with activation of MAP kinase, HIF-1, and NF-kappaB on HEI-OC1 cells.

Pub. Date : 2005 Sep

PMID : 15913932






8 Functional Relationships(s)
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1 In the present study, we investigated the signal transduction pathways of expression of IL-6 in the desferrioxamine (DFX)-stimulated cochlear auditory cell line, HEI-OC1 cells. Deferoxamine interleukin 6 Homo sapiens
2 In the present study, we investigated the signal transduction pathways of expression of IL-6 in the desferrioxamine (DFX)-stimulated cochlear auditory cell line, HEI-OC1 cells. Deferoxamine interleukin 6 Homo sapiens
3 DFX significantly increased the production of IL-6 (P<0.05) and expression of IL-6 mRNA but did not affect TNF-alpha production. Deferoxamine interleukin 6 Homo sapiens
4 DFX significantly increased the production of IL-6 (P<0.05) and expression of IL-6 mRNA but did not affect TNF-alpha production. Deferoxamine interleukin 6 Homo sapiens
5 Increased IL-6 by DFX was significantly inhibited by p38 inhibitor, SB203580 (about 72% inhibition, P=0.027) but not ERK inhibitor, PD98059 or JNK inhibitor, SP600125. Deferoxamine interleukin 6 Homo sapiens
6 DFX also induced IL-6 production and HIF-1alpha expression in the inner ear. Deferoxamine interleukin 6 Homo sapiens
7 We demonstrated the regulatory effects of MAPK, HIF-1alpha, and NF-kappaB on DFX-induced IL-6 production in a HEI-OC1 for the first time. Deferoxamine interleukin 6 Homo sapiens
8 In conclusion, these data indicate that regulation of inflammatory cytokine IL-6 by DFX, through mimicking hypoxic conditions, might explain its beneficial effect in the treatment of hypoxia-induced inner ear diseases. Deferoxamine interleukin 6 Homo sapiens