MCP-1 is selectively expressed in the late phase by cytokine-stimulated human neutrophils

TNF-α plays a role in maximal MCP-1 mRNA expression

Shigeo Yamashiro, Hidenobu Kamohara, Teizo Yoshimura

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Culture supernatants of phytohemagglutinin (PHA)-stimulated human peripheral blood mononuclear cells (PHA-sup) induced monocyte chemoattractant protein-1 (MCP-1) mRNA expression in human neutrophils. MCP-1 mRNA was first detected by Northern analysis at 8 h, and the peak level was detected at 16 h and sustained until 72 h. Cycloheximide and genistein, but not pertussis toxin, inhibited the expression of MCP-1 mRNA. Recombinant tumor necrosis factor α (TNF-α) induced a low level MCP-1 mRNA accumulation in neutrophils, and addition of anti-TNF-α IgG blocked 30-70% of MCP-1 mRNA expression induced with PHA-sup. PHA-sup-stimulated PMN synthesized and secreted 3.1 ± 1.3 ng/5 x 106 PMN MCP-1 within the first 24 h. Hybridization of (32)P-labeled cDNA preparations to an array of human cytokine cDNAs further indicated that MCP-1 mRNA was selectively up-regulated in the late phase after stimulation with the PHA-sup.

Original languageEnglish
Pages (from-to)671-679
Number of pages9
JournalJournal of Leukocyte Biology
Volume65
Issue number5
Publication statusPublished - 1999
Externally publishedYes

Fingerprint

Chemokine CCL2
Neutrophils
Phytohemagglutinins
Cytokines
Messenger RNA
Complementary DNA
Tumor Necrosis Factor-alpha
Genistein
Pertussis Toxin
Cycloheximide
human TNF protein
Blood Cells
Immunoglobulin G

Keywords

  • Chemokine
  • Gene expression
  • Inflammation

ASJC Scopus subject areas

  • Cell Biology

Cite this

MCP-1 is selectively expressed in the late phase by cytokine-stimulated human neutrophils : TNF-α plays a role in maximal MCP-1 mRNA expression. / Yamashiro, Shigeo; Kamohara, Hidenobu; Yoshimura, Teizo.

In: Journal of Leukocyte Biology, Vol. 65, No. 5, 1999, p. 671-679.

Research output: Contribution to journalArticle

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AB - Culture supernatants of phytohemagglutinin (PHA)-stimulated human peripheral blood mononuclear cells (PHA-sup) induced monocyte chemoattractant protein-1 (MCP-1) mRNA expression in human neutrophils. MCP-1 mRNA was first detected by Northern analysis at 8 h, and the peak level was detected at 16 h and sustained until 72 h. Cycloheximide and genistein, but not pertussis toxin, inhibited the expression of MCP-1 mRNA. Recombinant tumor necrosis factor α (TNF-α) induced a low level MCP-1 mRNA accumulation in neutrophils, and addition of anti-TNF-α IgG blocked 30-70% of MCP-1 mRNA expression induced with PHA-sup. PHA-sup-stimulated PMN synthesized and secreted 3.1 ± 1.3 ng/5 x 106 PMN MCP-1 within the first 24 h. Hybridization of (32)P-labeled cDNA preparations to an array of human cytokine cDNAs further indicated that MCP-1 mRNA was selectively up-regulated in the late phase after stimulation with the PHA-sup.

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