Updated project metadata. Obesity is a major cancer risk factor, but the underlying molecular mechanisms are not always known. In this study, we look at proteome remodeling in cancer cells with obesity, comparing tumor cells sorted from mice fed high-fat versus control diet. We conducted 10-plex TMT-proteomics on GFP+ MC38 colorectal adenocarcinoma tumor cells, sorted from subcutaneously implanted tumors 12 days after implantation. This study reveals molecular pathways that change in cancer cells with obesity that promote tumor growth.