TGFBR2 and breast cancer: BMP2, BMP4, GDF11 and TGFBR2 had relatively higher levels in bone metastases of breast cancer while BMP5, BMP7, BMPR2, BMPR1A and ACVR2A presented lower expression in the bone metastases, in the E-MTAB-4003 dataset (Figure 8A).