We used the TriFectaTM (IDT, Integrated DNA Technologies, Coralville, IA, USA) anti-Aire RNAi sequence (GGAUUCUCUUUAAGGACUACAAUCTAGAUUGUAGUCCUUAAAGAGAAUCCUC) in order to silencing Aire mRNA. Confluent cultures of 3.10 mTEC cell line were transfected with 10nM of anti-Aire siRNA using Hiperfect reagent (Qiagen, GmbH, Hilden, Germany) following manufacturer’s instructions. After transfection, cells were cultured during 24 h in RPMI medium as above mentioned and total RNA was extracted using the mirVana kit® (Ambion, Austin, TX, USA), which served as template for cDNA synthesis.