Table 1.

Capture of CTCs from mice with orthotopic breast cancer xenografts

Group	Sample	Xenograft time	End tumor weight (g)	Collected blood volume (μL)	Captured CTCs (CTCs/100 μL)
MDA-MB-231	#1	3 weeks	0.05	800	16
	#2		0.08	800	498
	#3	5 weeks	0.20	800	29
	#4		0.17	800	13
	#5		0.30	800	772
	#6		0.10	800	468
	#7		0.12	500	478
	#8	7 weeks	0.60	800	1348
	#9		0.30	800	259
	#10		0.32	800	261
	#11	9 weeks	0.20	800	0
	#12		0.60	800	4664
SUM-149	#13	5 weeks	0.22	300	675
	#14		0.20	800	306
	#15		0.24	700	1366
	#16	7 weeks	0.30	500	579
	#17		0.40	700	4408

MDA-MB-231 or SUM-149 xenografts of 1 × 10⁶ cells were grown before blood collection and enumeration of CTCs