Vall d'Hebron Institute of Oncology 2 articles published in JoVE Cancer Research Orthotopic Implantation of Patient-Derived Cancer Cells in Mice Recapitulates Advanced Colorectal Cancer Irene Chicote1, Jordi Martínez-Quintanilla1, Juan Antonio Cámara2, Héctor G. Palmer1,3 1 This protocol describes the orthotopic implantation of patient-derived cancer cells in the cecum wall of immunodeficient mice. The model recapitulates advanced colorectal cancer metastatic disease and allows for the evaluation of new therapeutic drugs in a clinically relevant scenario of lung and liver metastases. Genetics Identification of Enhancer-Promoter Contacts in Embryoid Bodies by Quantitative Chromosome Conformation Capture (4C) Tian V. Tian1,2,3, Enrique Vidal1,2, Thomas Graf1,2, Grégoire Stik1,2 1Center for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 2Universitat Pompeu Fabra, 3 We report the application of quantitative chromosome conformation capture followed by high-throughput sequencing in embryoid bodies generated from embryonic stem cells. This technique allows to identify and quantitate the contacts between putative enhancers and promoter regions of a given gene during embryonic stem cell differentiation.