YAP1 and cancer: Some integrin subunits in cancer cells are positively regulated by a variety of transcription factors, including MYC (α1, α6, and β4), ZEB1 (α1, α3, and β1), AP-1 (α2, α5, and β6), Ets (α3), Yap1 (α3), PTHrP (α5), ZEB2 (α5), Twist1 (α5), SP1 (α6 and αV), YB-1 (α6), FOXC1 (α7), Ets-1 (β6), FOXO3a (β1), HOXD3 and HOXD5 (β3), E2F (β4), FOSL1 (β4), KLF4 (β4), TAp63 and TAp73 (β4), ZKSCAN3 (β4), Smad3 (β6), and STAT-3 (β6) [25,26,27,28,29,30,31].