CXCL1

It was previously called GRO1 oncogene, GROα, neutrophil-activating protein 3 (NAP-3) and melanoma growth stimulating activity, alpha (MGSA-α).

CXCL1 was first cloned from a cDNA library of genes induced by platelet-derived growth factor (PDGF) stimulation of BALB/c-3T3 murine embryonic fibroblasts and named "KC" for its location in the nitrocellulose colony hybridization assay.

Moreover, its expression can be also induced indirectly by IL-1, TNF-α or IL-17 produced again by Th17 cells [15] and is triggered mainly by activation of NF-κB or C/EBPβ signaling pathways predominantly involved in inflammation and leading to production of other inflammatory cytokines.

An initial study in mice showed evidence that CXCL1 decreased the severity of multiple sclerosis and may offer a neuro-protective function.

Phosphorylation of ERK1/ERK2 kinases and activation of NMDA receptors leads to transcription of genes inducing chronic pain, such as c-Fos or cyclooxygenase-2 (COX-2).