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Statements

Subject Item
dbr:List_of_cis-regulatory_RNA_elements
dbo:wikiPageWikiLink
dbr:G-CSF_factor_stem-loop_destabilising_element
Subject Item
dbr:G-CSF_factor_stem-loop_destabilising_element
rdf:type
dbo:MilitaryUnit yago:Idea105833840 yago:Concept105835747 yago:Part105867413 yago:PsychologicalFeature100023100 yago:Cognition100023271 yago:Content105809192 yago:WikicatCis-regulatoryRNAElements yago:Component105868954 yago:Abstraction100002137
rdfs:label
G-CSF factor stem-loop destabilising element
rdfs:comment
The G-CSF factor stem-loop destabilising element (SLDE) is an RNA element secreted by fibroblasts and endothelial cells in response to the inflammatory mediators interleukin-1 (IL-1) and tumour necrosis factor-alpha and by activated macrophages. The synthesis of G-CSF is regulated both transcriptionally and through control of mRNA stability. In unstimulated cells G-CSF mRNA is unstable but becomes stabilised in response to IL-1 or tumour necrosis factor alpha, and also in the case of monocytes and macrophages, in response to lipopolysaccharide. It is likely that the presence of the SLDE in the G-CSF mRNA contributes to the specificity of regulation of G-CSF mRNA and enhances the rate of shortening of the poly(A) tail.
dbp:name
G-CSF factor stem-loop destabilising element
foaf:depiction
n9:RF00183.jpg
dcterms:subject
dbc:Cis-regulatory_RNA_elements
dbo:wikiPageID
11420856
dbo:wikiPageRevisionID
1095313948
dbo:wikiPageWikiLink
dbc:Cis-regulatory_RNA_elements dbr:AU-rich_element dbr:Transcription_(genetics) dbr:Interleukin_2 dbr:Endothelial_cells dbr:ATP_synthase dbr:P38_mitogen-activated_protein_kinases dbr:Three_prime_untranslated_region dbr:Catalysis dbr:Glycoprotein dbr:Granulocyte dbr:MRNA dbr:Eukaryota dbr:Endothelium dbr:Tumour_necrosis_factor-alpha dbr:Calcium_Ionophore_A23187 dbr:Cis-regulatory_element dbr:Neutrophil dbr:Sequence_conservation dbr:Macrophage dbr:Progenitor_cell dbr:Interleukin_6 dbr:Polyadenylation dbr:Messenger_RNA dbr:Interleukin-1 dbr:Secondary_structure dbr:Regulatory_sequence dbr:Dactinomycin dbr:Lipopolysaccharide dbr:Bone_marrow dbr:Monocyte dbr:Fibroblast dbr:Bone_marrow-derived_macrophage
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n14:4jxYh wikidata:Q5511884 yago-res:G-CSF_factor_stem-loop_destabilising_element freebase:m.02rbxyb
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dbt:Short_description dbt:Rfam dbt:SO dbt:Infobox_rfam dbt:Reflist dbt:Molecular-cell-biology-stub
dbo:thumbnail
n9:RF00183.jpg?width=300
dbp:caption
Predicted secondary structure and sequence conservation of G-CSF_SLDE
dbp:id
RF00183
dbp:symbol
G-CSF_SLDE
dbo:abstract
The G-CSF factor stem-loop destabilising element (SLDE) is an RNA element secreted by fibroblasts and endothelial cells in response to the inflammatory mediators interleukin-1 (IL-1) and tumour necrosis factor-alpha and by activated macrophages. The synthesis of G-CSF is regulated both transcriptionally and through control of mRNA stability. In unstimulated cells G-CSF mRNA is unstable but becomes stabilised in response to IL-1 or tumour necrosis factor alpha, and also in the case of monocytes and macrophages, in response to lipopolysaccharide. It is likely that the presence of the SLDE in the G-CSF mRNA contributes to the specificity of regulation of G-CSF mRNA and enhances the rate of shortening of the poly(A) tail. Adenylate uridylate-rich elements (AUREs) are present in other cytokine mRNAs, but the SLDE is the most important element that stabilizes G-CSF mRNA in response to IL-1 or tumor necrosis factor- alpha. Additionally, there are destablizing elements similar to SLDE found in IL-2 and IL-6. The 3'-UTR of G-CSF mRNA contains a destablizing element that is insensitive to calcium ionophore, hence SLDE regulates G-CSF mRNA. AUDEs do not function in 5637 Bladder carcinoma cells, but the SLDE does. The two destablizing elements, SLDE and AURE, provide multiple mechanisms to regulate cytokine expression. Neutrophils, are the most abundant type of granulocytes and are responsible for leading the first response of the immune system response against invaders. Granulocyte-colony stimulating factor (G-CSF) is a glycoprotein that stimulates proliferation of neutrophil progenitor cells and leads to the maturation of neutrophils. monocytes and macrophages are the cells that secrete G-CSF, but it is found that endothelial cells, fibroblasts, and bone marrow stromal cells also secrete the glycoprotein. Expression of G-CSF glycoprotein is complex and has both transcription and post transcription regulation. Two specific types of regulatory elements are present in the 3' untranslated region (3'UTR) of G-CSF mRNA. These elements are referred to as adenylate uridylate-rich elements (AUREs) and stem-loop destabilizing element (SLDE). They have been shown to be destabilizing elements of the G-CSF mRNA. On the other hand, the stability of the mRNA is regulated by p38 mitogen-activated protein kinase (MAPK) and this phosphorylating enzyme has been shown to be linked to the AUREs in the 3'UTR. SB203580 specifically inhibits the catalytic activity of p38 MAPK by competitively binding to the active site where ATP is supposed to bind and is used to probe the role of p38 MAPK in cells. SB203580 amplified the lipopolysaccharide-induced increase in the G-CSF mRNA levels in mouse bone marrow-derived macrophages and in THP-1 human macrophages. By displaying that the decay of G-CSF mRNA, in the presence of actinomycin D, was slower in SB203580-treated cells. SB203580 increased the stability of G-CSF mRNA. SLDE is essential for the SB203580-induced increase in the stability of mRNA.
dbp:rfam
RF00183
dbp:rnaType
dbr:Cis-regulatory_element
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wikipedia-en:G-CSF_factor_stem-loop_destabilising_element?oldid=1095313948&ns=0
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wikipedia-en:G-CSF_factor_stem-loop_destabilising_element
Subject Item
dbr:Granulocyte_colony-stimulating_factor
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dbr:G-CSF_factor_stem-loop_destabilising_element
Subject Item
dbr:SLDE
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dbr:G-CSF_factor_stem-loop_destabilising_element
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dbr:G-CSF_factor_stem-loop_destabilising_element
Subject Item
dbr:G-CSF_factor_stem-loop_destabilising_element_(SLDE)
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dbr:G-CSF_factor_stem-loop_destabilising_element
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