YAP1 and liposarcoma: YAP1 was expressed more strongly in FUS‐DDIT3‐positive MLS 402‐91, MLS 1765‐92, and MLS 1955‐91 cells than in cell lines representing other liposarcoma subtypes (T449 and T778, WDLS; FU‐DDLS‐1, DDLS; LiSa‐2, PLS) with the exception of SW872 cells (PLS), which showed similar YAP1 mRNA and protein levels as MLS 1765‐92 and MLS 1955‐91 (Fig 2A, Appendix Fig S2A).