6533b7d4fe1ef96bd1261ea2

RESEARCH PRODUCT

ERK3/MAPK6 controls IL-8 production and chemotaxis

Krishnaraj RajalingamFederico MariniChristian MichelManuel KaulichHarald BinderHarald BinderKatarzyna BoguckaHansjörg SchildMatthias KleinPeter P. GrimmingerMalvika PompaiahMarkus P. RadsakSebastian RosigkeitGregory S. HarmsGregory S. Harms

subject

0301 basic medicineMAPK/ERK pathwayMouseQH301-705.5ScienceERK3General Biochemistry Genetics and Molecular BiologyCell Line03 medical and health sciencesMice0302 clinical medicineOrganoidmetastasisAnimalsHumansInterleukin 8Biology (General)chemotaxisMitogen-Activated Protein Kinase 6Gene knockdownGeneral Immunology and MicrobiologyIL-8ChemistryKinaseGeneral NeuroscienceQInterleukin-8RChemotaxisGeneral MedicineCell BiologyMAPKgastrointestinal organoidsIn vitroCell biologysecretomeChemotaxis Leukocyte030104 developmental biologyGene Expression Regulation030220 oncology & carcinogenesisMedicineHeterograftsSignal transductionsignal transductionResearch ArticleHuman

description

ERK3 is a ubiquitously expressed member of the atypical mitogen activated protein kinases (MAPKs) and the physiological significance of its short half-life remains unclear. By employing gastrointestinal 3D organoids, we detect that ERK3 protein levels steadily decrease during epithelial differentiation. ERK3 is not required for 3D growth of human gastric epithelium. However, ERK3 is stabilized and activated in tumorigenic cells, but deteriorates over time in primary cells in response to lipopolysaccharide (LPS). ERK3 is necessary for production of several cellular factors including interleukin-8 (IL-8), in both, normal and tumorigenic cells. Particularly, ERK3 is critical for AP-1 signaling through its interaction and regulation of c-Jun protein. The secretome of ERK3-deficient cells is defective in chemotaxis of neutrophils and monocytes both in vitro and in vivo. Further, knockdown of ERK3 reduces metastatic potential of invasive breast cancer cells. We unveil an ERK3-mediated regulation of IL-8 and epithelial secretome for chemotaxis.

yearjournalcountryeditionlanguage
2020-04-01eLife
10.7554/elife.52511http://europepmc.org/articles/PMC7192585