Production of adrenomedullin in macrophage cell line and peritoneal macrophage

Atsushi Kubot, Naoto Minamino, Yoshitaka Isumi, Takeshi Katafuchi, Kenji Kangawa, Kazuhiro Dohi, Hisayuki Matsuo

Research output: Contribution to journalArticle

141 Citations (Scopus)

Abstract

We demonstrate that adrenomedullin (AM) is produced and secreted from cultured murine monocyte/macrophage cell line (RAW 264.7) as well as mouse peritoneal macrophage. Immunoreactive (IR) AM secreted from RAW 264.7 cells was chromatographically identified to be native AM. To elucidate the regulation mechanism of AM production in macrophage, we examined the effects of various substances inducing differentiation or activation of monocyte/macrophage. Phorbol ester (TPA), retinoic acid (RA), lipopolysaccharide (LPS), and interferon-γ (IFN-γ) increased AM production 1.5-7-fold in RAW 264.7 cells in a dose- as well as time-dependent manner. By LPS stimulation, the AM mRNA level in RAW 264.7 cells was augmented up to 7- fold after 14 h incubation. RA exerted a synergistic effect when administered with TPA, LPS, or IFN-γ, whereas IFN-γ completely suppressed AM production in RAW 264.7 cells stimulated with LPS. Dexamethasone, hydrocortisone, estradiol, and transforming growth factor-β dose-dependently suppressed AM production in RAW 264.7 cells. AM production was also investigated in mouse peritoneal macrophage. Primary mouse macrophage secreted IR-AM at a rate similar to that of RAW 264.7 cells, and its production was enhanced 9-fold by LPS stimulation. AM was found to increase basal secretion of tumor necrosis factor α (TNF-α) from RAW 264.7 cells, whereas AM suppressed the secretion of TNF-α and interleukin-6 from that stimulated with LPS. Thus, macrophage should be recognized as one of the major sources of AM circulating in the blood. Especially in cases of sepsis and inflammation, AM production in macrophage is augmented, and the secreted AM is deduced to function as a modulator of cytokine production.

Original languageEnglish (US)
Pages (from-to)16730-16738
Number of pages9
JournalJournal of Biological Chemistry
Volume273
Issue number27
DOIs
StatePublished - Jul 3 1998

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Adrenomedullin
Macrophages
Peritoneal Macrophages
Cells
Cell Line
Lipopolysaccharides
Interferons
Tretinoin
Monocytes
Tumor Necrosis Factor-alpha
Macrophage Activation
RAW 264.7 Cells
Transforming Growth Factors
Phorbol Esters

ASJC Scopus subject areas

  • Biochemistry

Cite this

Kubot, A., Minamino, N., Isumi, Y., Katafuchi, T., Kangawa, K., Dohi, K., & Matsuo, H. (1998). Production of adrenomedullin in macrophage cell line and peritoneal macrophage. Journal of Biological Chemistry, 273(27), 16730-16738. https://doi.org/10.1074/jbc.273.27.16730

Production of adrenomedullin in macrophage cell line and peritoneal macrophage. / Kubot, Atsushi; Minamino, Naoto; Isumi, Yoshitaka; Katafuchi, Takeshi; Kangawa, Kenji; Dohi, Kazuhiro; Matsuo, Hisayuki.

In: Journal of Biological Chemistry, Vol. 273, No. 27, 03.07.1998, p. 16730-16738.

Research output: Contribution to journalArticle

Kubot, A, Minamino, N, Isumi, Y, Katafuchi, T, Kangawa, K, Dohi, K & Matsuo, H 1998, 'Production of adrenomedullin in macrophage cell line and peritoneal macrophage', Journal of Biological Chemistry, vol. 273, no. 27, pp. 16730-16738. https://doi.org/10.1074/jbc.273.27.16730
Kubot A, Minamino N, Isumi Y, Katafuchi T, Kangawa K, Dohi K et al. Production of adrenomedullin in macrophage cell line and peritoneal macrophage. Journal of Biological Chemistry. 1998 Jul 3;273(27):16730-16738. https://doi.org/10.1074/jbc.273.27.16730
Kubot, Atsushi ; Minamino, Naoto ; Isumi, Yoshitaka ; Katafuchi, Takeshi ; Kangawa, Kenji ; Dohi, Kazuhiro ; Matsuo, Hisayuki. / Production of adrenomedullin in macrophage cell line and peritoneal macrophage. In: Journal of Biological Chemistry. 1998 ; Vol. 273, No. 27. pp. 16730-16738.
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