Expression of monocyte chemotactic protein-3 in human monocytes exposed to the mycobacterial cell wall component lipoarabinomannan

Valérie Vouret-Craviari, Salvatore Cenzuales, Guido Poli, Alberto Mantovani

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Monocyte chemotactic protein-3 (MCP-3) is a C-C chemokine which interacts with the CCR1, CCR2 (MCP-1) and CCR3 receptors and has a distinct spectrum of action. The present study was designed to assess whether mycobacterial components were able to induce expression and production of MCP-3 in human monocytes. Mycobacterial lipoarabinomannan (LAM) induced expression of MCP-3 mRNA in human peripheral blood mononuclear cells. The non-mannose-capped version of lipoarabinomannan (AraLAM) was considerably more potent than the mannose-capped version ManLAM or the simpler version phosphatidylinositol mannoside (PIM). Among mononuclear cells, monocytes were responsible for LAM-induced MCP-3 mRNA expression. Whole mycobacteria (Mycobacterium bovis BCG) strongly induced MCP-3 expression. Pretreatment with actinomycin D abolished LAM-induced MCP-3 expression, whereas cycloheximide only partially reduced the expression. LAM-induced MCP-3 expression was associated with the production of immunoreactive PTX3. Interleukin 10 (IL-10) and IL-13 inhibited the induction of MCP-3 by LAM. Thus mycobacterial cell wall components induce expression of MCP-3 in human monocytes. MCP-3, a chemokine active on mononuclear phagocytes, NK cells, T cells and dendritic cells, may be relevant to the induction and expression of immunity against mycobacteria.

Original languageEnglish
Pages (from-to)992-998
Number of pages7
JournalCytokine
Volume9
Issue number12
DOIs
Publication statusPublished - Dec 1997

Fingerprint

Chemokine CCL7
Cellular Structures
Cell Wall
Monocytes
Cells
Mycobacterium
Mycobacterium bovis
CCR3 Receptors
CCR2 Receptors
lipoarabinomannan
CC Chemokines
Messenger RNA
T-cells
Interleukin-13
Dactinomycin
Cycloheximide
Phagocytes
Mannose
Chemokines
Natural Killer Cells

ASJC Scopus subject areas

  • Endocrinology
  • Molecular Biology
  • Immunology
  • Immunology and Allergy

Cite this

Expression of monocyte chemotactic protein-3 in human monocytes exposed to the mycobacterial cell wall component lipoarabinomannan. / Vouret-Craviari, Valérie; Cenzuales, Salvatore; Poli, Guido; Mantovani, Alberto.

In: Cytokine, Vol. 9, No. 12, 12.1997, p. 992-998.

Research output: Contribution to journalArticle

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