Abstract
We have examined basal and lipopolysaccharide (LPS)-induced release of epidermal growth factor (EGF), granulocyte-macrophage colony-stimulating factor (GM-CSF), growth-regulated peptide alpha (GRO alpha), leukaemia inhibitory factor (LIF), macrophage inflammatory protein-1a (MIP-1 alpha) and platelet-derived growth factor-AB (PDGF-AB) in peripheral blood mononuclear cells (PBMC) from 20 persons with either high (n = 10) or low (n = 10) levels of high-density lipoprotein (HDL). PBMC were incubated with 100 ng LPS/ml for up to 160 h, and showed a significantly higher release of the chemokines GRO alpha (P = 0.04) and MIP-1 alpha (P < 0.01) in persons with high HDL, whereas levels of GM-CSF were similar. Levels of EGF, LIF and PDGF-AB were always low, and remained unaltered during 160 h of incubation. These findings indicate that PBMC from persons with high or low levels of HDL have different functional properties, of importance in cell recruitment and activation.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Chemokine CCL4
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Chemokine CXCL1
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Chemokines / blood
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Chemokines, CXC*
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Chemotactic Factors / blood
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Cytokines / blood*
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Epidermal Growth Factor / blood
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Female
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Granulocyte-Macrophage Colony-Stimulating Factor / blood
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Growth Inhibitors / blood
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Growth Substances / blood
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Humans
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Intercellular Signaling Peptides and Proteins*
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Interleukin-6*
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Leukemia Inhibitory Factor
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Leukocytes, Mononuclear / metabolism*
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Lipopolysaccharides / pharmacology*
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Lipoproteins, HDL / blood*
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Lymphokines / blood
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Macrophage Inflammatory Proteins
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Male
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Monokines / blood
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Neoplasm Proteins / blood
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Platelet-Derived Growth Factor / metabolism
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Stimulation, Chemical
Substances
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CXCL1 protein, human
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Chemokine CCL4
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Chemokine CXCL1
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Chemokines
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Chemokines, CXC
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Chemotactic Factors
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Cytokines
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Growth Inhibitors
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Growth Substances
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Intercellular Signaling Peptides and Proteins
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Interleukin-6
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LIF protein, human
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Leukemia Inhibitory Factor
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Lipopolysaccharides
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Lipoproteins, HDL
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Lymphokines
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Macrophage Inflammatory Proteins
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Monokines
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Neoplasm Proteins
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Platelet-Derived Growth Factor
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platelet-derived growth factor AB
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Epidermal Growth Factor
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Granulocyte-Macrophage Colony-Stimulating Factor