**6.7 Apratoxin A**

A cyclodepsipeptide isolated from ascidian, *Lyngbya majuscula* showed antiproliferative activity in KB and LoVo cancer cells. It induces the antiproliferative activity through the induction of G1 cell cycle arrest, apoptotic cascade and partially initiated by antagonism of FGF signaling via STAT3 [52].
