Mouse Gene Set: BIOCARTA_FMLP_PATHWAY

For the Human gene set with the same name, see BIOCARTA_FMLP_PATHWAY

Standard name BIOCARTA_FMLP_PATHWAY
Systematic name MM1399
Brief description fMLP induced chemokine gene expression in HMC-1 cells
Full description or abstract Neutrophils respond to bacterial infection by releasing reactive oxygen species that kill bacteria and by expressing chemokines that attract other immune cells to the site of infection. The multisubunit enzyme NADPH oxidase expressed by neutrophils produces reactive oxygen species rapidly released in what is known as the respiratory burst. Activity of the NADPH oxidase is induced by fMLP receptor ligands, formylated peptides from bacteria. The fMLP receptor is a G-protein coupled receptor, FPR-1, that activates Map kinase pathways and phospholipase C. Phospholipase C activation releases IP3 and calcium, activating protein kinase C and also activating the transcription factor NFAT, which contributes to activation of chemokine genes. One of the components of the NADPH oxidase is p47phox. PKC activation phosphorylates p47phox to activate NADPH oxidase activity. Activation of Map kinase cascades leads to Erk1/Erk2 dependent p47phox phosphorylation as well as activation of the Elk-1 transcription factor and chemokine gene expression. Inhibition of p38 did not affect p47phox phosphorylation, indicating that p38 is not involved in Erk1/2 activation of the NADPH oxidase. Inhibition of p38 did inhibit NADPH oxidase though, indicating that other pathways contribute to activation of this enzyme. The pathways involved in neutrophils activation are important to understand innate immune responses to bacterial infection.
Collection M2: Curated
      CP: Canonical Pathways
            CP:BIOCARTA: BioCarta Pathways
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External links https://data.broadinstitute.org/gsea-msigdb/msigdb/biocarta/mouse/m_fmlpPathway.gif
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Source species Mus musculus
Contributed by BioCarta
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identifier namespace		 MOUSE_SEQ_ACCESSION
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Version history 2022.1.Mm: First Introduced.

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