mediator release via sirtuin-NF-κB RelA/p65 interaction. Cigarette smoke decreased sirtuin levels and caused posttranslational modification by reactive aldehydes/reactive oxygen species/RNS, thereby disrupting SIRT1-RelA/p65 complex via phosphorylation (P) and acetylation (Ac) of RelA/p65. This leads to increased release of pro-inflammatory mediators. RNS, reactive nitrogen species.