(C) RT-qPCR quantification of relative levels of IL6, IL1B, PTGS2 and TNFA levels in epidermis of abdominal healthy humanskin biopsies exposed to acute UV ex vivo, with or without topical treatment with miR-21-3p inhibitor (+) or mismatched control (-) as indicated. ns: not significant. IL6: no UV vs Ac-UV P = 0.036, Ac-UV vs Ac-UV/miR-21-3p inhibitor P = 0.019; IL1B: no UV vs Ac-UV P = 0.002, Ac-UV vs Ac-UV/miR-21-3p inhibitor P = 0.023; PTGS2: no UV vs Ac-UV P = 0.008, Ac-UV vs Ac-UV/miR-21-3p inhibitor P = 0.022; TNFA: no UV vs Ac-UV P = 0.032, ns = non significant. ≥ 7 replicates, a pool of three independent experiments performed with the skin of three different donors is shown. 