IL-27 induces the expression of IDO and PD-L1 in human cancer cells. Posted on 10 February 201510 February 2020 by admin Carbotti G, Barisione G, Airoldi I, Mezzanzanica D, Bagnoli M, Ferrero S, Petretto A, Fabbi M, Ferrini S. IL-27 induces the expression of IDO and PD-L1 in human cancer cells.Oncotarget 2015;6:43267-80.http://www.oncotarget.com/index.php?journal=oncotarget&page=article&op=view&path[]=6530&pubmed-linkout=1