General Information:
Id: | 4,118 |
Diseases: |
Multiple sclerosis
- [OMIM]
|
Mammalia | |
review | |
Reference: | Arnason BG et al.(2013) Mechanisms of action of adrenocorticotropic hormone and other melanocortins relevant to the clinical management of patients with multiple sclerosis Mult. Scler. 19: 130-136 [PMID: 23034287] |
Interaction Information:
Comment | ACTH binds to all five melanocortin receptors (MCRs). MC1R is expressed in skin, in melanocytes and monocytes, in neutrophils and lymphocytes, central nervous system (CNS), and in microglia and astrocytes. |
Formal Description Interaction-ID: 42428 |
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Comment | ACTH binds to all five melanocortin receptors (MCRs). MC2R, the adrenal receptor underlying the steroidogenic actions of ACTH, is also found in osteoblasts and skin. |
Formal Description Interaction-ID: 42492 |
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Drugbank entries | Show/Hide entries for MC2R |
Comment | ACTH binds to all five melanocortin receptors (MCRs). MC3R is found in the hypothalamus and limbic system. |
Formal Description Interaction-ID: 42493 |
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Comment | ACTH binds to all five melanocortin receptors (MCRs). MC4R, the dominant CNS receptor, is expressed in the cortex, thalamus, hypothalamus, brain stem and spinal cord. |
Formal Description Interaction-ID: 42494 |
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Comment | ACTH binds to all five melanocortin receptors (MCRs). MC5R, widely distributed in exocrine glands, is also found in lymphocytes. |
Formal Description Interaction-ID: 42495 |
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Comment | ACTH gel (H.P. Acthar Gel), a slow-release formulation of full-sequence ACTH (1-39), contains additional biologically active POMC peptides and has been used for decades to treat multiple sclerosis (MS) exacerbations. |
Formal Description Interaction-ID: 42496 |
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Drugbank entries | Show/Hide entries for Corticotropin |
Comment | ACTH can be cleaved to form alpha-MSH. |
Formal Description Interaction-ID: 42497 |
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Comment | ACTH and alpha-, beta- and gamma-MSH comprise the melanocortins. |
Formal Description Interaction-ID: 42498 |
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Comment | ACTH and alpha-, beta- and gamma-MSH comprise the melanocortins. |
Formal Description Interaction-ID: 42499 |
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Comment | Melanocortins are anti-inflammatory at cellular (i.e. directly suppressing immunocytes) and system levels (i.e. nervous system and glucocorticoid-mediated immune-system downregulation). |
Formal Description Interaction-ID: 42500 |
gene/protein Melanocortin increases_activity of |
Comment | Melanocortins inhibit innate immune system cells widely, including macrophages peripherally and microglia in the CNS. |
Formal Description Interaction-ID: 42501 |
gene/protein Melanocortin decreases_activity of process |
Comment | Melanocortins inhibit innate immune system cells widely, including macrophages peripherally and microglia in the CNS. |
Formal Description Interaction-ID: 42502 |
gene/protein Melanocortin decreases_activity of tissue/cell line |
Comment | Melanocortins inhibit innate immune system cells widely, including macrophages peripherally and microglia in the CNS. |
Formal Description Interaction-ID: 42503 |
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Comment | Stimulation of brain-expressed MC4Rs increases central release of neurotransmitters (e.g. noradrenalin (NA), acetylcholine (ACh), dopamine (DA)) that can quell microglia and, via descending neural pathways, triggers release in the periphery of anti-inflammatory NA and ACh from sympathetic and parasympathetic nerve endings. |
Formal Description Interaction-ID: 42504 |
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Comment | Stimulation of brain-expressed MC4Rs increases central release of neurotransmitters (e.g. noradrenalin (NA), acetylcholine (ACh), dopamine (DA)) that can quell microglia and, via descending neural pathways, triggers release in the periphery of anti-inflammatory NA and ACh from sympathetic and parasympathetic nerve endings. |
Formal Description Interaction-ID: 42505 |
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Comment | Stimulation of brain-expressed MC4Rs increases central release of neurotransmitters (e.g. noradrenalin (NA), acetylcholine (ACh), dopamine (DA)) that can quell microglia and, via descending neural pathways, triggers release in the periphery of anti-inflammatory NA and ACh from sympathetic and parasympathetic nerve endings. |
Formal Description Interaction-ID: 42506 |
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Drugbank entries | Show/Hide entries for |
Comment | Stimulation of brain-expressed MC4Rs increases central release of neurotransmitters (e.g. noradrenalin (NA), acetylcholine (ACh), dopamine (DA)) that can quell microglia and, via descending neural pathways, triggers release in the periphery of anti-inflammatory NA and ACh from sympathetic and parasympathetic nerve endings. |
Formal Description Interaction-ID: 42507 |
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Drugbank entries | Show/Hide entries for |
Comment | Stimulation of brain-expressed MC4Rs increases central release of neurotransmitters (e.g. noradrenalin (NA), acetylcholine (ACh), dopamine (DA)) that can quell microglia and, via descending neural pathways, triggers release in the periphery of anti-inflammatory NA and ACh from sympathetic and parasympathetic nerve endings. |
Formal Description Interaction-ID: 42508 |
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Comment | Stimulation of brain-expressed MC4Rs increases central release of neurotransmitters (e.g. noradrenalin (NA), acetylcholine (ACh), dopamine (DA)) that can quell microglia and, via descending neural pathways, triggers release in the periphery of anti-inflammatory NA and ACh from sympathetic and parasympathetic nerve endings. |
Formal Description Interaction-ID: 42509 |
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Drugbank entries | Show/Hide entries for Acetylcholine |
Comment | Stimulation of brain-expressed MC4Rs increases central release of neurotransmitters (e.g. noradrenalin (NA), acetylcholine (ACh), dopamine (DA)) that can quell microglia and, via descending neural pathways, triggers release in the periphery of anti-inflammatory NA and ACh from sympathetic and parasympathetic nerve endings. |
Formal Description Interaction-ID: 42510 |
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Drugbank entries | Show/Hide entries for Dopamine |
Comment | Alpha-MSH restrains the nuclear factor-kappaB (NF-kappaB) transcription factor. |
Formal Description Interaction-ID: 42511 |
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Comment | Phosphorylation of IkappaB by cytokines, bacterial products, or viruses causes IkappaB degradation. |
Formal Description Interaction-ID: 42514 |
gene/protein Cytokine increases_phosphorylation of gene/protein NFKBI |
Comment | Phosphorylation of IkappaB by cytokines, bacterial products, or viruses causes IkappaB degradation. |
Formal Description Interaction-ID: 42515 |
gene/protein Cytokine decreases_quantity of gene/protein NFKBI |
Comment | Phosphorylation of IkappaB by cytokines, bacterial products, or viruses causes IkappaB degradation. |
Formal Description Interaction-ID: 42516 |
environment bacterial product increases_phosphorylation of gene/protein NFKBI |
Comment | Phosphorylation of IkappaB by cytokines, bacterial products, or viruses causes IkappaB degradation. |
Formal Description Interaction-ID: 42517 |
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Comment | Phosphorylation of IkappaB by cytokines, bacterial products, or viruses causes IkappaB degradation. |
Formal Description Interaction-ID: 42518 |
process increases_phosphorylation of gene/protein NFKBI |
Comment | Newly freed NF-kappaB translocates to the nucleus and binds to DNA sequences encoding NF-kappaB-responsive elements that then trigger transcription of target genes. |
Formal Description Interaction-ID: 42519 |
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Comment | Newly freed NF-kappaB translocates to the nucleus and binds to DNA sequences encoding NF-kappaB-responsive elements that then trigger transcription of target genes. |
Formal Description Interaction-ID: 42520 |
complex/PPI NF-kappaB complex interacts (colocalizes) with cellular component DNA |
Comment | Newly freed NF-kappaB translocates to the nucleus and binds to DNA sequences encoding NF-kappaB-responsive elements that then trigger transcription of target genes. |
Formal Description Interaction-ID: 42521 |
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Comment | Tissue-destructive nitric oxide and neopterin release from macrophages (which rises during MS flares) is also reduced by melanocortins. |
Formal Description Interaction-ID: 42522 |
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Comment | alpha-MSH increases production of anti-inflammatory IL-10. This reinforces the immunosuppressive capacity of alpha-MSH. |
Formal Description Interaction-ID: 42523 |
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Comment | IL-10 levels are subnormal in progressive MS. |
Formal Description Interaction-ID: 42524 |
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Comment | alpha-MSH and ACTH induce regulatory T cells (Tregs) that suppress disease in the experimental autoimmune encephalomyelitis (EAE) model of MS. |
Formal Description Interaction-ID: 42525 |
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Comment | Tissue-destructive nitric oxide and neopterin release from macrophages (which rises during MS flares) is also reduced by melanocortins. |
Formal Description Interaction-ID: 42536 |
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Comment | alpha-MSH and ACTH induce regulatory T cells (Tregs) that suppress disease in the experimental autoimmune encephalomyelitis (EAE) model of MS. |
Formal Description Interaction-ID: 42537 |
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Comment | alpha-MSH and ACTH induce regulatory T cells (Tregs) that suppress disease in the experimental autoimmune encephalomyelitis (EAE) model of MS. |
Formal Description Interaction-ID: 42538 |
tissue/cell line decreases_activity of phenotype experimental autoimmune encephalomyelitis |
Comment | ACTH increases tyrosine hydroxylase mRNA, and hence NA synthesis, in SNS ganglion neurons. |
Formal Description Interaction-ID: 42539 |
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Drugbank entries | Show/Hide entries for TH |
Comment | ACTH increases tyrosine hydroxylase mRNA, and hence NA synthesis, in SNS ganglion neurons. |
Formal Description Interaction-ID: 42540 |
gene/protein increases_quantity of drug/chemical compound |
Comment | NA modulates inflammation and protects against EAE, suggesting that melanocortin-induced NA release may be relevant in MS, a notion reinforced by findings with the beta2-adrenergic agonist albuterol which, as an add-on to glatiramer acetate, strikingly reduces MS relapses. |
Formal Description Interaction-ID: 42566 |
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Comment | NA modulates inflammation and protects against EAE, suggesting that melanocortin-induced NA release may be relevant in MS, a notion reinforced by findings with the beta2-adrenergic agonist albuterol which, as an add-on to glatiramer acetate, strikingly reduces MS relapses. |
Formal Description Interaction-ID: 42567 |
drug/chemical compound decreases_activity of phenotype experimental autoimmune encephalomyelitis |
Comment | Melanocortins increase immunosuppressive NA outflow via four reinforcing mechanisms. |
Formal Description Interaction-ID: 42568 |
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Comment | Peripheral cholinergic pathways downregulate inflammatory responses via macrophage-expressed alpha7-nicotinic ACh receptors (AChRs). |
Formal Description Interaction-ID: 42570 |
process cholinergic pathway (peripheral) decreases_activity of process |
Comment | DMVN neuron activation by central alpha-MSH/ACTH triggers ACh release from their efferent endings. |
Formal Description Interaction-ID: 42571 |
gene/protein increases_activity of tissue/cell line DMVN neuron |
Comment | Released ACh engages monocyte/macrophage alpha7-nicotinic AChRs. |
Formal Description Interaction-ID: 42572 |
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Drugbank entries | Show/Hide entries for Acetylcholine or CHRNA7 |
Comment | DMVN neuron activation by central alpha-MSH/ACTH triggers ACh release from their efferent endings. |
Formal Description Interaction-ID: 42573 |
gene/protein increases_activity of tissue/cell line DMVN neuron |
Comment | Systemic ACTH or alpha-MSH given peripherally, heighten CNS-restricted actions like motivation, attention, arousal, learning and memory. |
Formal Description Interaction-ID: 42574 |
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Comment | Systemic ACTH or alpha-MSH given peripherally, heighten CNS-restricted actions like motivation, attention, arousal, learning and memory. |
Formal Description Interaction-ID: 42575 |
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Comment | Systemic ACTH or alpha-MSH given peripherally, heighten CNS-restricted actions like motivation, attention, arousal, learning and memory. |
Formal Description Interaction-ID: 42576 |
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Comment | Systemic ACTH or alpha-MSH given peripherally, heighten CNS-restricted actions like motivation, attention, arousal, learning and memory. |
Formal Description Interaction-ID: 42577 |
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Comment | LC (locus ceruleus) ablation causes NA depletion throughout the cortex and frees microglia to make proinflammatory cytokines. Thus, decreased LC metabolism in MS links to cognitive impairment. |
Formal Description Interaction-ID: 42578 |
phenotype decreased locus ceruleus metabolism level cooccurs with phenotype cognitive impairment |
Comment | Released NA, bound to beta2-adrenegic receptors on microglia, promotes microglial quiescence. |
Formal Description Interaction-ID: 42580 |
drug/chemical compound decreases_activity of tissue/cell line |
Comment | LC (locus ceruleus) ablation causes NA depletion throughout the cortex and frees microglia to make proinflammatory cytokines. Thus, decreased LC metabolism in MS links to cognitive impairment. |
Formal Description Interaction-ID: 42581 |
tissue/cell line affects_quantity of drug/chemical compound |
Comment | LC (locus ceruleus) ablation causes NA depletion throughout the cortex and frees microglia to make proinflammatory cytokines. Thus, decreased LC metabolism in MS links to cognitive impairment. |
Formal Description Interaction-ID: 42582 |
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Comment | LC (locus ceruleus) ablation causes NA depletion throughout the cortex and frees microglia to make proinflammatory cytokines. Thus, decreased LC metabolism in MS links to cognitive impairment. |
Formal Description Interaction-ID: 42583 |
tissue/cell line affects_quantity of gene/protein Proinflammatory cytokine |
Comment | Glutamate activates microglia. |
Formal Description Interaction-ID: 42584 |
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Comment | In MS, CNS-restricted proinflammatory cytokines (e.g. TNF-alpha) made by microglia are upregulated, whereas anti-inflammatory cytokines (e.g. IL-10) are suppressed. |
Formal Description Interaction-ID: 42585 |
disease increases_quantity of gene/protein Proinflammatory cytokine |
Comment | In MS, CNS-restricted proinflammatory cytokines (e.g. TNF-alpha) made by microglia are upregulated, whereas anti-inflammatory cytokines (e.g. IL-10) are suppressed. |
Formal Description Interaction-ID: 42586 |
disease increases_quantity of gene/protein |
Drugbank entries | Show/Hide entries for TNF |
Comment | In MS, CNS-restricted proinflammatory cytokines (e.g. TNF-alpha) made by microglia are upregulated, whereas anti-inflammatory cytokines (e.g. IL-10) are suppressed. |
Formal Description Interaction-ID: 42587 |
disease decreases_quantity of gene/protein Antiinflammatory cytokine |
Comment | In MS, CNS-restricted proinflammatory cytokines (e.g. TNF-alpha) made by microglia are upregulated, whereas anti-inflammatory cytokines (e.g. IL-10) are suppressed. |
Formal Description Interaction-ID: 42588 |
disease decreases_quantity of gene/protein |
Comment | Melanocortins bound to MC1Rs on activated microglia suppress production of the proinflammatory mediators TNF-alpha, IL-6 and nitric oxide. |
Formal Description Interaction-ID: 42589 |
gene/protein Melanocortin decreases_quantity of gene/protein |
Drugbank entries | Show/Hide entries for TNF |
Comment | Melanocortins bound to MC1Rs on activated microglia suppress production of the proinflammatory mediators TNF-alpha, IL-6 and nitric oxide (NO). |
Formal Description Interaction-ID: 42590 |
gene/protein Melanocortin decreases_quantity of gene/protein |
Drugbank entries | Show/Hide entries for IL6 |
Comment | Melanocortins bound to MC1Rs on activated microglia suppress production of the proinflammatory mediators TNF-alpha, IL-6 and nitric oxide (NO). |
Formal Description Interaction-ID: 42591 |
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Comment | ACTH, contrary to steroids, promotes osteoblast differentiation from an immature into a mineralizing phenotype and counteracts dexamethasone-induced osteoblast apoptosis. |
Formal Description Interaction-ID: 42592 |
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Comment | Alpha-MSH restrains the nuclear factor-kappaB (NF-kappaB) transcription factor. |
Formal Description Interaction-ID: 106880 |
gene/protein decreases_activity of complex/PPI NF-kappaB complex |
Comment | Newly freed NF-kappaB translocates to the nucleus and binds to DNA sequences encoding NF-kappaB-responsive elements that then trigger transcription of target genes. |
Formal Description Interaction-ID: 106890 |
complex/PPI NF-kappaB complex increases_activity of complex/PPI NF-kappaB complex |