Hui, B.* et al. Inhibition of APOE potentiates immune checkpoint therapy for cancer. Int. J. Biol. Sci. 18, 5230-5240 (2022) Li, Z.* et al. Circ-PTPDC1 promotes the progression of gastric cancer through sponging Mir-139-3p by regulating ELK1 and functions as a prognostic biomarker. Int. J. Biol. Sci. 17, 4285-4304 (2021)