Table 2. Known histological associations for single genes within signatures.

Signature	Gene(s)	Ref
Squamous	Bmp2, Bmp4, Bmp7	[66, 67]
Squamous	Krt1, Krt10, Krt14, Krt16, K17	[68–71]
Squamous	Wnt6	[72]
Squamous	Sprr1b	[73]
EMT Up	Vegfc	[74]
EMT Up	Zeb1	[75]
EMT Up	Vim	[75]
EMT Down	Epcam	[76]
EMT Down	Cldn1, Cldn3	[77, 78]
EMT Down	Cdh1	[75, 79]
Papillary	Krt19	[80]
Papillary	Hey2	[81]
Papillary	Muc 15	[82]
Adenomyoepithelial	Tnni2	[83]