BMP4/Thrombospondin-1 loop paracrinically inhibits tumor angiogenesis and suppresses the growth of solid tumors.

Tsuchida R, Osawa T, Wang F, Nishii R, Das B, Tsuchida S, Muramatsu M, Takahashi T, Inoue T, Wada Y, Minami T, Yuasa Y, Shibuya M.Oncogene. 2014 Jul 17;33(29):3803-11. doi: 10.1038/onc.2013.358