PPARD and endometrium adenocarcinoma: Tong et al. measured high PPARβ/δ expression levels in eleven endometrial adenocarcinoma tissue samples [29], while Ma et al. investigated the role of PPARβ/δ in endometrial cancer and observed that this PPAR isoform exerted significant growth inhibitory and apoptotic effects in the endometrial cancer cell lines Ishikawa, RL95-2, and Sawano.