Commentary on Metallofullerene nanoparticles circumvent tumor resistance to cisplatin by reactivating endocytosis: Liang XJ, Meng H, Wang Y, He H, Meng J, Lu J, Wang PC, Zhao Y, Gao X, Sun B, Chen C, Xing G, Shen D, Gottesman MM, Wu Y, Yin JJ, Jia L, Chinese Academy of Sciences Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China, Beijing, China