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Biochim Biophys Acta. 1999 Jul 7;1446(1-2):167-72.

Genomic organization, sequence and transcriptional regulation of the human CXCL 11(1) gene.

Author information

1
Department of Dermatology, University Hospital Vrije Universiteit, Amsterdam/Leiden Institute for Immunology, 1081 HV, Amsterdam, Netherlands. cp.tensen@azvu.nl

Abstract

CXCL 11, encoded by the cDNA sequences designated beta-R1, H-174, or I-TAC, is a CXC chemokine ligand for CXCR3 and assumed to be involved in inflammatory diseases characterized by the presence of activated T-cells. We here describe the genomic organization (four exons interrupted by three introns of 585, 98 and 230 bp) and sequence including 960 bp from the immediate 5'-upstream region of the human CXCL 11 gene. Within the promoter region, consensus sequences for regulatory elements (ISRE, GAS, NF-kappaB) important for cytokine-induced gene transcription were identified. The effect of (pro)inflammatory cytokines on CXCL 11 mRNA expression in monocytic cell lines (THP-1, U937) and primary cultures of dermal fibroblasts and endothelial cells were examined using Northern blot analysis. For these cell types, IFN-gamma was a potent inducer of CXCL 11 transcription, which was synergistically enhanced by TNF-alpha.

PMID:
10395932
DOI:
10.1016/s0167-4781(99)00084-6
[Indexed for MEDLINE]

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