Title : cAMP-induced Interleukin-10 promoter activation depends on CCAAT/enhancer-binding protein expression and monocytic differentiation.

Pub. Date : 2003 Feb 21

PMID : 12493739






6 Functional Relationships(s)
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1 However, the mutation of these sites diminished cAMP responsiveness by only 50%, suggesting a role for additional transcription factors and elements in the cAMP-dependent regulation of the human IL-10 promoter. Cyclic AMP interleukin 10 Homo sapiens
2 Recently, we provided evidence that stress-induced IL-10 promoter activation in monocytic cells is mediated by catecholamines via a cAMP-dependent signaling pathway including CREB/ATF (cAMP-responsive element binding protein/activating transcription factor) binding to two CRE motifs. Cyclic AMP interleukin 10 Homo sapiens
3 Recently, we provided evidence that stress-induced IL-10 promoter activation in monocytic cells is mediated by catecholamines via a cAMP-dependent signaling pathway including CREB/ATF (cAMP-responsive element binding protein/activating transcription factor) binding to two CRE motifs. Cyclic AMP interleukin 10 Homo sapiens
4 However, the mutation of these sites diminished cAMP responsiveness by only 50%, suggesting a role for additional transcription factors and elements in the cAMP-dependent regulation of the human IL-10 promoter. Cyclic AMP interleukin 10 Homo sapiens
5 We show that the level of basal as well as cAMP-stimulated IL-10 transcription depends on the expression of C/EBP alpha and beta and their binding to three motifs in the promoter/enhancer region. Cyclic AMP interleukin 10 Homo sapiens
6 The C/EBP5 motif, which is located between the TATA-box and the translation start point, is essential for the C/EBP-mediated constitutive and most of the cAMP-stimulated expression as its mutation nearly abolished IL-10 promoter activity. Cyclic AMP interleukin 10 Homo sapiens