Elevated monocyte chemotactic proteins 1, 2, and 3 in pulmonary alveolar proteinosis are associated with chemokine receptor suppression

Pulmonary alveolar proteinosis (PAP) is a rare autoimmune lung disease characterized by abnormal surfactant accumulation within alveolar macrophages, and circulating auto-antibodies against granulocyte-macrophage colony stimulating factor (GM-CSF) resulting in functional GM-CSF deficiency. Monocyte/...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 114(2005), 1 vom: 10. Jan., Seite 79-85
1. Verfasser: Bonfield, Tracey L (VerfasserIn)
Weitere Verfasser: John, Nejimol, Malur, Anagha, Barna, Barbara P, Culver, Daniel A, Kavuru, Mani S, Thomassen, Mary Jane
Format: Aufsatz
Sprache:English
Veröffentlicht: 2005
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article CCL7 protein, human CCL8 protein, human CCR2 protein, human Chemokine CCL2 Chemokine CCL7 Chemokine CCL8 Chemokines Cytokines Monocyte Chemoattractant Proteins mehr... Receptors, CCR2 Receptors, Chemokine
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245 1 0 |a Elevated monocyte chemotactic proteins 1, 2, and 3 in pulmonary alveolar proteinosis are associated with chemokine receptor suppression 
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520 |a Pulmonary alveolar proteinosis (PAP) is a rare autoimmune lung disease characterized by abnormal surfactant accumulation within alveolar macrophages, and circulating auto-antibodies against granulocyte-macrophage colony stimulating factor (GM-CSF) resulting in functional GM-CSF deficiency. Monocyte/macrophage chemotactic protein-1 (MCP-1) is elevated in PAP, suggesting association with the pathophysiology. Because PAP has been associated with inflammatory pulmonary changes, we hypothesized that other MCP family chemokines would be present and that Chemokine Chemotaxis Receptor 2 (CCR2) would be elevated on PAP mononuclear cells. Here we show for the first time that MCP-2 and MCP-3, like MCP-1, are highly elevated in PAP. We also confirm that PAP alveolar macrophages and not epithelial cells produce MCP-1, and that MCP-1 from PAP lung has functional chemoattractant activity. Surprisingly, CCR2 expression is diminished in PAP lymphocytes and alveolar macrophages compared to controls. Further, MCP-1 from PAP lung suppresses CCR2 expression in vitro, suggesting that in PAP, MCP-1 participates in an autocrine regulatory network in vivo 
650 4 |a Journal Article 
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650 7 |a Cytokines  |2 NLM 
650 7 |a Monocyte Chemoattractant Proteins  |2 NLM 
650 7 |a Receptors, CCR2  |2 NLM 
650 7 |a Receptors, Chemokine  |2 NLM 
700 1 |a John, Nejimol  |e verfasserin  |4 aut 
700 1 |a Malur, Anagha  |e verfasserin  |4 aut 
700 1 |a Barna, Barbara P  |e verfasserin  |4 aut 
700 1 |a Culver, Daniel A  |e verfasserin  |4 aut 
700 1 |a Kavuru, Mani S  |e verfasserin  |4 aut 
700 1 |a Thomassen, Mary Jane  |e verfasserin  |4 aut 
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