Title : Homocysteine mediated expression and secretion of monocyte chemoattractant protein-1 and interleukin-8 in human monocytes.

Pub. Date : 2003 Aug 22

PMID : 12881478






3 Functional Relationships(s)
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1 Homocysteine mediated expression and secretion of monocyte chemoattractant protein-1 and interleukin-8 in human monocytes. Homocysteine C-C motif chemokine ligand 2 Homo sapiens
2 We found that clinically relevant levels of Hcy (10 to 1000 micromol/L) increased the protein secretion and mRNA expression as well as activity of MCP-1 and IL-8 in cultured primary human monocytes. Homocysteine C-C motif chemokine ligand 2 Homo sapiens
3 These data indicate that pathophysiological levels of Hcy can alter human monocyte function by upregulating MCP-1 and IL-8 expression and secretion via enhanced formation of intracellular ROS originated from NAD(P)H oxidase source via calmodulin or protein kinase C signaling pathways and that Hcy-induced ROS subsequently activates mitogen-activated protein kinase (p38 and ERK1/2) and nuclear factor-kappaB in a PPARgamma activator-sensitive manner. Homocysteine C-C motif chemokine ligand 2 Homo sapiens