almost reached significancep = 0.055
No correlation was also found between Nrf2 and DJ-1 ( r = −0.45, p = 0.12) but the correlation with Keap1 almost reached significance ( r = −0.54, p = 0.055), which has been previously observed in cancer cells [22] . 3.6 HDAC2 is associated with Nrf2 and HDAC reduction causes acetylation of Nrf2 In order to measure acetylation levels of Nrf2, high amount of the protein were obtained by treating BEAS2B cells with MG132, a proteasome inhibitor, preventing degradation of Nrf2.