PPARG and breast cancer: In order to examine further the relationship between Pparγ and the abundance of the growth factors maintained by endogenous Pparγ1 in the murine mammary tumors, we interrogated a public database (https://www.cbioportal.org/study/summary?id=brca_mbcproject_wagle_2017 (accessed on 2–15 December 2020)) in which mRNA expression of breast cancer samples had been determined.