Histone acetylation and activation of cAMP-response element-binding protein regulate transcriptional activation of MKP-M in lipopolysaccharide-stimulated macrophages

Tipayaratn Musikacharoen, Yasunobu Yoshikai, Tetsuya Matsuguchi

    Research output: Contribution to journalArticle

    18 Citations (Scopus)

    Abstract

    MKP-M is a dual specificity phosphatase that preferentially inactivates JNK. mkp-M gene expression is rapidly induced by lipopolysaccharide (LPS) stimulation in macrophages and is involved in the negative regulation of LPS-mediated JNK activation and tumor necrosis factor-α secretion. To reveal the transcriptional regulation of the mkp-M gene, we isolated the mouse mkp-M gene and mapped its transcriptional start site. Luciferase reporter plasmids containing 5′-upstream regions of the mkp-M gene were stably transfected into RAW264.7 cells. The assays using these cells revealed that the promoter region between -252 and -135 is required for mkp-M promoter activation. Sequencing analysis revealed E box and CREB-responsive elements in this region, and electromobility shift assays and mutagenesis confirmed that both of these elements are essential for LPS responsiveness of the mkp-M gene. We also utilized chromatin immunoprecipitation assay and found that LPS stimulation caused acetylation of histone H3 and H4 at mkp-M promoter in RAW264.7 cells. Consistent with this, a histone deacetylase inhibitor, trichostatin A, increased endogenous mkp-M gene transcription. Finally, DNase I hypersensitivity site mapping revealed the inducible hypersensitivity site after LPS stimulation around the location of the E box and CREB-responsive elements. Altogether, our data indicated that the activation of mkp-M gene transcription in macrophages by LPS is associated with histone acetylation and chromatin remodeling.

    Original languageEnglish
    Pages (from-to)9167-9175
    Number of pages9
    JournalJournal of Biological Chemistry
    Volume278
    Issue number11
    DOIs
    Publication statusPublished - Mar 14 2003

    Fingerprint

    Acetylation
    Cyclic AMP Response Element-Binding Protein
    Macrophages
    Histones
    Transcriptional Activation
    Lipopolysaccharides
    Genes
    Chemical activation
    Assays
    Transcription
    Chromatin
    trichostatin A
    Hypersensitivity
    Dual-Specificity Phosphatases
    Mutagenesis
    Histone Deacetylase Inhibitors
    Chromatin Assembly and Disassembly
    Chromatin Immunoprecipitation
    Deoxyribonuclease I
    Luciferases

    All Science Journal Classification (ASJC) codes

    • Biochemistry
    • Molecular Biology
    • Cell Biology

    Cite this

    Histone acetylation and activation of cAMP-response element-binding protein regulate transcriptional activation of MKP-M in lipopolysaccharide-stimulated macrophages. / Musikacharoen, Tipayaratn; Yoshikai, Yasunobu; Matsuguchi, Tetsuya.

    In: Journal of Biological Chemistry, Vol. 278, No. 11, 14.03.2003, p. 9167-9175.

    Research output: Contribution to journalArticle

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