Tianjin Key Laboratory of Tumour Microenvironment and Neurovascular Regulation 1 article published in JoVE Cancer Research Analysis of Side Population in Solid Tumor Cell Lines Xiaoli Dong1, Yingying Wei1, Tao Xu1, Xiaoyue Tan1,2,3, Na Li1,2,3 1School of Medicine, Nankai University, 2Tianjin Key Laboratory of Tumour Microenvironment and Neurovascular Regulation, 3Collaborative Innovation Center for Biotherapy, Nankai University A convenient, fast, and cost-effective method to measure the proportion of side population cells in solid tumor cell lines is presented.