Qiang Sun obtained his PhD in Molecular Biology and Biochemistry at the Forth Medical University, Xi’an, under the supervision of Professor Hua Han. Then, he moved to Beijing Institute of Biotechnology where he systemically investigated the mutual regulation between TGF-beta signaling and miRNAs. During that period, he independently discovered and investigated cell-in-cell structures before postdoctoral research with Dr. Michael Overholtzer in MSKCC. His postdoctoral work identified entosis as a mammalian mechanism of cell competition that promotes clonal selection and tumor evolution. He is currently a full professor of cell biology in Beijing Institute of Biotechnology, and director of the Research unit of Cell Death Mechanism, Chinese Academy of Medical Sciences. His lab is dedicated to basic and translational studies related to cell death and diseases, in particular those involving cell-in-cell formation homotypically among tumor cells, and/or heterotypically between tumor and immune cells.