Sara Costa, Dalila Bevilacqua, Elena Caveggion, Sara Gasperini, Elena Zenaro, Francesca Pettinella, Marta Donini, Stefano Dusi, Gabriela Constantin, Silvia Lonardi, William Vermi, Francesco De Sanctis, Stefano Ugel, Tiziana Cestari, Clare L Abram, Clifford A Lowell, Pamela Rodegher, Franco Tagliaro, Giampiero Girolomoni, Marco A Cassatella, Patrizia Scapini
BACKGROUND: Psoriasis is a chronic skin disease associated with deregulated interplays between immune cells and keratinocytes. Neutrophil accumulation in the skin is a histological feature that characterizes psoriasis. However, the role of neutrophils in psoriasis onset and development remains poorly understood. METHODS: In this study, we utilized the model of psoriasiform dermatitis, caused by the repeated topical application of an imiquimod containing cream, in neutrophil-depleted mice or in mice carrying impairment in neutrophil functions, including p47phox -/- mice (lacking a cytosolic subunit of the phagocyte nicotinamide adenine dinucleotide phosphate - NADPH - oxidase) and Sykfl/fl MRP8-cre+ mice (carrying the specific deletion of the Syk kinase in neutrophils only), to elucidate the specific contribution of neutrophils to psoriasis development...
2022: Frontiers in Immunology