The nbUVB phototherapy 311 nm is also effective in mild-to-moderate psoriasis, but its exact mechanism of action on psoriatic skin is yet to be fully elucidated. Keywords: nbUVB phototherapy; plaque psoriasis; human skin cultures; 11 -HSD1 EN nbUVB phototherapy plaque psoriasis human skin cultures 11 -HSD1 391 394 4 07/18/22 20220701 NES 220701 ACKNOWLEDGMENTS Open Access Funding provided by Universita degli Studi di Siena within the CRUI-CARE Agreement. Plaque psoriasis, nbUVB phototherapy, human skin cultures, 11 -HSD1. [Extracted from the article]