Original Literature | Model OverView |
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Publication
Title
The atrial natriuretic peptide regulates the production of inflammatorymediators in macrophages.
Affiliation
Department of Pharmacy, Centre of Drug Research, University of Munich, Germany.Alexandra.Kiemer@cup.uni-muenchen.de
Abstract
The atrial natriuretic peptide (ANP), a member of the natriuretic peptidefamily, is a cardiovascular hormone which possesses well defined natriuretic,diuretic, and vasodilating properties. Most of the biological effects of ANParemediated through its guanylyl cyclase coupled A receptor. Because ANP and itsreceptors have been shown to be expressed and differentially regulated in theimmune system, it has been suggested that ANP has an immunomodulatory potency.Much investigation of the effects of ANP on the activation of macrophages hasbeen carried out. ANP was shown to inhibit the lipopolysaccharide (LPS)-inducedexpression of inducible nitric oxide synthase (iNOS) in macrophages in anautocrine fashion. ANP in this context was shown to reduce significantly theactivation of NF-kappaB and to destabilise iNOS mRNA. ANP, furthermore, cansignificantly reduce the LPS-induced secretion of tumour necrosis factor alpha(TNFalpha) in macrophages. The relevance of these findings on a regulatory rolefor ANP on TNFalpha in humans was shown by the fact that ANP significantlyreduces the release of TNFalpha in whole human blood. It was furthermore shownto attenuate the release of interleukin 1beta (IL1beta). Interestingly, ANP didnot affect the secretion of the anti-inflammatory cytokines IL10 and IL1receptor antagonist (IL1ra). In summary, ANP was shown to reduce the secretionof inflammatory mediators in macrophages. Therefore, this cardiovascular hormonemay possess anti-inflammatory potential.
PMID
11890659
|
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PMID: 11890659 The guanylyl cyclases NPR-A and NPR-B contain an extracellular, ligand binding domain whereby NPR-A binds ANP and BNP.
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mass
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PMID: 11890659 NPR-C has the potency to internalise and clear the natriuretic peptides
--
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PMID: 11890659 NPR-C has the potency to internalise and clear the natriuretic peptides.
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PMID: 11890659 NPR-C has the potency to internalise and clear the natriuretic peptides
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PMID: 11890659, 8532063, 10865843 In the organism nitric oxide is synthesised by nitric oxide synthases (NOS) from the amino acid L-arginine. Two constitutive nitric oxide synthases, the endothelial NOS (eNOS, NOS I) and the neuronal NOS (nNOS; NOS III), produce NO that mainly serves as vasodilator.
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PMID: 11890659, 8532063, 10865843 In the organism nitric oxide is synthesised by nitric oxide synthases (NOS) from the amino acid L-arginine. Two constitutive nitric oxide synthases, the endothelial NOS (eNOS, NOS I) and the neuronal NOS (nNOS; NOS III), produce NO that mainly serves as vasodilator.
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PMID: 11890659, 8532063, 9303203 NO produced by the inducible isoform of the enzyme (iNOS) is an important mediator of host defence.
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0
PMID: 11890659, 8532063, 1429562 Induction occurs after exposure of cells to cytokines and bacterial products, such as lipopolysaccharides (LPS).
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PMID: 11890659, 8532063, 1429562 Induction occurs after exposure of cells to cytokines and bacterial products, such as lipopolysaccharides (LPS).
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PMID: 11890659, 9593677, 11257311 ANP was shown to inhibit markedly the activation of the transcription factor NF-kappaB. The LPS-induced expression of TNF-alpha is inhibited by ANP through binding to the NPR-A. The inhibitory action involves transcriptional processes with a reduced activation of NF-kappaB and AP1.
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m34*0.1
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0
PMID: 11890659, 7508926 ANP was shown to inhibit markedly the activation of the transcription factor NF-kappaB which is crucial for the induction of iNOS in murine macrophages.
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mass
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coefficient2:1.0
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m6*m12*0.1
nodelay
--
0
PMID: 11890659 The guanylyl cyclases NPR-A and NPR-B contain an extracellular, ligand binding domain whereby NPR-A binds ANP and BNP.
--
and
mass
coefficient1:0.1
coefficient2:1.0
stoichiometry:c52 : 1
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m34*0.1
nodelay
--
0
PMID: 11890659, 1429562 TNF-alpha is a central proinflammatory cytokine and is regulated transcriptionally; the two transcription factors NF-kappaB and AP1 are involved.
--
and
mass
coefficient1:0.1
coefficient2:1.0
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PMID: 11890659, 10861050 Besides the reduced activation of NF-kappaB, ANP markedly inhibited AP1 activity in LPS activated macrophages.
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mass
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m38*0.1
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0
PMID: 11890659, 1429562 TNF-alpha is a central proinflammatory cytokine and is regulated transcriptionally; the two transcription factors NF-kappaB and AP1 are involved.
--
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PMID: 11890659, 11257311 The inhibitory action of ANP on the interferon-gamma mediated activation of the p38 mitogen activated protein kinase was suggested to be the upstream step responsible for the attenuated activation of NF-kappaB in macrophages.
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PMID: 11890659, 11257311 The inhibitory action of ANP on the interferon-gamma mediated activation of the p38 mitogen activated protein kinase was suggested to be the upstream step responsible for the attenuated activation of NF-kappaB in macrophages.
--
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coefficient2:1.0
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PMID: 11890659, 7508926 ANP was shown to inhibit markedly the activation of the transcription factor NF-kappaB, which is crucial for the induction of iNOS in murine macrophages.
--
and
mass
coefficient1:0.1
coefficient2:1.0
stoichiometry:c7 : 1
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0
PMID: 11890659 NPR-B binds CNP.
--
and
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nodelay
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0
PMID: 11890659 NPR-C has the potency to internalise and clear the natriuretic peptides.
--
and
mass
coefficient1:0.1
coefficient2:1.0
stoichiometry:c14 : 1
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m17*m12*0.1
nodelay
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0
PMID: 11890659 NPR-C has the potency to internalise and clear the natriuretic peptides.Moreover, an increasing number of reports show that several biological effects of ANP are mediated through this ¡Èclearance¡É receptor (NPR-C).
--
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mass
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m17*m15*0.1
nodelay
--
0
PMID: 11890659 NPR-C has the potency to internalise and clear the natriuretic peptides.
--
and
mass
coefficient1:0.1
coefficient2:1.0
stoichiometry:c19 : 1
stoichiometry:c20 : 1
m20*0.1
nodelay
--
0
PMID: 11890659 NPR-C has the potency to internalise and clear the natriuretic peptides.
--
and
mass
coefficient1:0.1
coefficient2:1.0
stoichiometry:c21 : 1
stoichiometry:c22 : 1
m21*0.1
nodelay
--
0
PMID: 11890659 NPR-C has the potency to internalise and clear the natriuretic peptides
--
and
mass
coefficient1:0.1
coefficient2:1.0
stoichiometry:c23 : 1
stoichiometry:c24 : 1
m19*0.1
nodelay
--
0
PMID: 11890659 NPR-C has the potency to internalise and clear the natriuretic peptides.
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