YAP1 and liposarcoma: To further explore the involvement of YAP1 in MLS development, we examined the expression of nuclear YAP1, corresponding to the transcriptionally active pool, in 223 primary human liposarcoma specimens (MLS, n = 85; WDLS, n = 55; DDLS, n = 74; PLS, n = 9) using IHC (Fig 2D–F).