Table 1.

Extracellular matrix and integrin expression profile of hESC-derived cardiomyocytes

	In vitro		2 days			4 weeks			12 weeks			4 weeks + MI			12 weeks + MI
	hESC-CM	Likely from hESC-CM?	Scar > rest heart?	hESC-CM	Likely from hESC-CM?	Scar > rest heart?	hESC-CM	Likely from hESC-CM?	Scar > rest heart?	hESC-CM	Likely from hESC-CM?	Scar > rest heart?	hESC-CM	Likely from hESC-CM?	Scar > rest heart?	hESC-CM	Likely from hESC-CM?
COLL I	X	O	O	X	O	O	X (extra)	O	O	X (extra)	O	X	X (extra)	O	X	X (extra)	O
HU-COLL IV	X	X	O	X	X	O	X (extra)	X	O	X (extra)	X	O	X (extra)	X	O	X (extra)	X
HU-COLL XVIII	X	X	O	X	X	O	X (extra)	X	O	X (extra)	X	O	X (extra)	X		X (extra)	X
LM	X	X	O	X	?	O	X	?	O	X	?	X	X	?	X	X	?
LM-211	O	O	O	O	O	O	X	?	O	X	?	O	X	?	O	X	?
FN	X	X	X	X	X	X	X (<2 days)	X	O	X (<4 weeks)	X	X (hu > ms)	X	X	X (hu > ms)	X	X
α1	O						O			O			O			O
α2	O						O			O			O			O
α3	Some X			Some X			X			X			X			X
α4	O						O			O			O			O
α5	X						Most X			Some X			50% X			Some X
α6	Some X						Some X			O			O			O
α7	X (PCR)
α10	O						O			O			O			O
α11	X						X			X			X			X
αV	X						most X			50% X			Some X			50% X
β1	X						X			X			X			X

X Yes, O no, (extra) also at distance from the graft, hu human, ms mouse, MI myocardial infarction, coll collagen, LM laminin