Modulation of human immune responses by bovine interleukin-10

Cytokines can be functionally active across species barriers. Bovine IL-10 has an amino acid sequence identity with human IL-10 of 76.8%. Therefore, the aim of this study was to evaluate whether bovine IL-10 has immunomodulatory activities on human monocytes and dendritic cells. Peripheral blood mon...

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Veröffentlicht in:PloS one 2011-03, Vol.6 (3), p.e18188
Hauptverfasser: den Hartog, Gerco, Savelkoul, Huub F J, Schoemaker, Ruud, Tijhaar, Edwin, Westphal, Adrie H, de Ruiter, Talitha, van de Weg-Schrijver, Elise, van Neerven, R J Joost
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container_title PloS one
container_volume 6
creator den Hartog, Gerco
Savelkoul, Huub F J
Schoemaker, Ruud
Tijhaar, Edwin
Westphal, Adrie H
de Ruiter, Talitha
van de Weg-Schrijver, Elise
van Neerven, R J Joost
description Cytokines can be functionally active across species barriers. Bovine IL-10 has an amino acid sequence identity with human IL-10 of 76.8%. Therefore, the aim of this study was to evaluate whether bovine IL-10 has immunomodulatory activities on human monocytes and dendritic cells. Peripheral blood monocytes were isolated from healthy donors, and used directly or allowed to differentiate to dendritic cells under the influence of IL-4 and GM-CSF. Recombinant bovine IL-10 inhibited TLR induced activation of monocytes, and dose-dependently inhibited LPS-induced activation of monocyte-derived DCs comparable to human IL-10. By using blocking antibodies to either bovine IL-10 or the human IL-10 receptor it was demonstrated that inhibition of monocyte activation by bovine IL-10 was dependent on binding of bovine IL-10 to the human IL-10R. These data demonstrate that bovine IL-10 potently inhibits the activation of human myeloid cells in response to TLR activation. Bovine IL-10 present in dairy products may thus potentially contribute to the prevention of necrotizing enterocolitis and allergy, enhance mucosal tolerance induction and decrease intestinal inflammation and may therefore be applicable in infant foods and in immunomodulatory diets.
doi_str_mv 10.1371/journal.pone.0018188
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Bovine IL-10 has an amino acid sequence identity with human IL-10 of 76.8%. Therefore, the aim of this study was to evaluate whether bovine IL-10 has immunomodulatory activities on human monocytes and dendritic cells. Peripheral blood monocytes were isolated from healthy donors, and used directly or allowed to differentiate to dendritic cells under the influence of IL-4 and GM-CSF. Recombinant bovine IL-10 inhibited TLR induced activation of monocytes, and dose-dependently inhibited LPS-induced activation of monocyte-derived DCs comparable to human IL-10. By using blocking antibodies to either bovine IL-10 or the human IL-10 receptor it was demonstrated that inhibition of monocyte activation by bovine IL-10 was dependent on binding of bovine IL-10 to the human IL-10R. These data demonstrate that bovine IL-10 potently inhibits the activation of human myeloid cells in response to TLR activation. 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Bovine IL-10 has an amino acid sequence identity with human IL-10 of 76.8%. Therefore, the aim of this study was to evaluate whether bovine IL-10 has immunomodulatory activities on human monocytes and dendritic cells. Peripheral blood monocytes were isolated from healthy donors, and used directly or allowed to differentiate to dendritic cells under the influence of IL-4 and GM-CSF. Recombinant bovine IL-10 inhibited TLR induced activation of monocytes, and dose-dependently inhibited LPS-induced activation of monocyte-derived DCs comparable to human IL-10. By using blocking antibodies to either bovine IL-10 or the human IL-10 receptor it was demonstrated that inhibition of monocyte activation by bovine IL-10 was dependent on binding of bovine IL-10 to the human IL-10R. These data demonstrate that bovine IL-10 potently inhibits the activation of human myeloid cells in response to TLR activation. 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genetics</topic><topic>Amino acids</topic><topic>Animals</topic><topic>Antibodies</topic><topic>B cells</topic><topic>Binding Sites</topic><topic>Biological Availability</topic><topic>Biology</topic><topic>Biomarkers - metabolism</topic><topic>Blocking antibodies</topic><topic>Breastfeeding &amp; lactation</topic><topic>Cattle</topic><topic>Cell activation</topic><topic>Cell Membrane - drug effects</topic><topic>Cell Membrane - metabolism</topic><topic>cytokine production</topic><topic>Cytokines</topic><topic>Dairy products</topic><topic>Dendritic cells</topic><topic>Dendritic Cells - cytology</topic><topic>Dendritic Cells - drug effects</topic><topic>Dendritic Cells - metabolism</topic><topic>Enterocolitis</topic><topic>Food</topic><topic>Granulocyte-macrophage colony-stimulating factor</topic><topic>Growth factors</topic><topic>Human behavior</topic><topic>human-milk</topic><topic>Humans</topic><topic>Hypersensitivity</topic><topic>Hypoxia</topic><topic>ifn-gamma</topic><topic>Immune response</topic><topic>Immunity - 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subjects Activation
Allergies
Amino Acid Sequence
Amino Acid Substitution - genetics
Amino acids
Animals
Antibodies
B cells
Binding Sites
Biological Availability
Biology
Biomarkers - metabolism
Blocking antibodies
Breastfeeding & lactation
Cattle
Cell activation
Cell Membrane - drug effects
Cell Membrane - metabolism
cytokine production
Cytokines
Dairy products
Dendritic cells
Dendritic Cells - cytology
Dendritic Cells - drug effects
Dendritic Cells - metabolism
Enterocolitis
Food
Granulocyte-macrophage colony-stimulating factor
Growth factors
Human behavior
human-milk
Humans
Hypersensitivity
Hypoxia
ifn-gamma
Immune response
Immunity - drug effects
Immunological tolerance
Immunology
Immunomodulation
Inhibition
interferon-gamma
Interleukin
Interleukin 10
Interleukin 4
Interleukin-10 - chemistry
Interleukin-10 - pharmacology
Interleukins
Intestine
Ligands
Lipopolysaccharides
Lipopolysaccharides - pharmacology
Lymphocytes
Medicine
Milk
Molecular Sequence Data
Monocytes
Monocytes - cytology
Monocytes - drug effects
Monocytes - metabolism
Mucosa
Myeloid cells
Necrotizing enterocolitis
Pediatrics
Peripheral blood
Receptors, Interleukin-10 - chemistry
Receptors, Interleukin-10 - metabolism
Rodents
sequence identity
sublingual immunotherapy
t-cell proliferation
tgf-beta
Toll-Like Receptors - metabolism
title Modulation of human immune responses by bovine interleukin-10
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