p53 activates circASCC3 to repress R-loops and enhance resistance to chemotherapy - Mingming Cao; Yu Gan; Yingdan Huang; Jing Tong; Chen Xiong; Yajie Chen; Bing Chen; Ruixuan Huang; Bangxiang Xie; Jun Deng; Shenglin Huang; Xianghuo He; et al. (Proceedings of the National Academy of Sciences, 2025)