EphrinA1 is released in three forms from cancer cells by matrix metalloproteases.
Beauchamp A, Lively MO, Mintz A, Gibo D, Wykosky J, Debinski W. EphrinA1 is released in three forms from cancer cells by matrix metalloproteases. Mol Cell Biol. 2012 Aug; 32(16):3253-64.