CISD2 inhibition overcomes resistance to sulfasalazine-induced ferroptotic cell death in head and neck cancer
Sulfasalazine has been repurposed to induce ferroptotic cancer cell death via inhibition of xc--cystine/glutamate antiporter (xCT). However, cancer cells are capable of developing mechanisms to evade cell death. Therefore, we sought to determine the molecular mechanisms underlying resistance to sulfasalazine-induced ferroptosis in head and neck cancer (HNC). The effects of sulfasalazine and pioglitazone were tested in various HNC cell lines. The effects of these drugs and inhibition and overexpression of CISD2 gene were determined by evaluating viability, cell death, lipid ROS production, mitochondrial iron, and mouse tumor xenograft models.
Source: Cancer Letters - Category: Cancer & Oncology Authors: Eun Hye Kim, Daiha Shin, Jaewang Lee, Ah Ra Jung, Jong-Lyel Roh Tags: Original Articles Source Type: research