Table I.

Antibodies and dilutions used for immunofluorescence staining.

Antibody: Dilution (Cat. no., provider)	Antibody: Dilution (Cat. no., provider)
Pan-cytokeratin (CK): 1:50 (MA5-13203, Invitrogen, Thermo Fisher Scientific)	E-cadherin: 1:50 (ab76055, Abcam)
Nanog: 1:50 (3580, Cell Signaling Technology)	N-cadherin: 1:50 (ab76057, Abcam)
Sox2: 1:50 (4900, Cell Signaling Technology)	Snail: 1:150 (ab180714, Abcam)
Oct4: 1:50 (2840, Cell Signaling Technology)	LGR5: 1:50 (sc135238, Santa Cruz Biotechnology)
Vimentin: 1:200 (5741, Cell Signaling Technology)	ALDH1: 1:50 (ab24343, Abcam)
CD44: 1:500 (5640, Cell Signaling Technology)	CD133: 1:50 (ab16518, Abcam)
β-catenin: 1:100 (9581, Cell Signaling Technology)	CD44v6: 1:50 (BBA13, R&D Systems)

Sox2, sex determining region Y-box 2; Oct4, octamer-binding transcription factor 4; LGR5, leucine-rich repeat-containing G-protein coupled receptor 5; ALDH1, aldehyde dehydrogenase 1.