Table 1.

Detection of HepG2 cells in blood at different spiking levels

Spiked cells, n	ASGPR		CPS1		ASGPR + CPS1
	Detected cells, n	Detection rate	Detected cells, n	Detection rate	Detected cells, n	Detection rate
10	7 ± 1	74% ± 11%	6 ± 1	64% ± 11%	8 ± 1	84% ± 9%
50	36 ± 3	72% ± 6%	31 ± 3	62% ± 6%	44 ± 3	89% ± 7%
250	150 ± 16	60% ± 6%	140 ± 16	56% ± 6%	215 ± 11	86% ± 4%
1000	573 ± 24	57% ± 3%	531 ± 21	53% ± 2%	824 ± 21	83% ± 2%

ASGPR: Asialoglycoprotein receptor; CPS1: Carbamoyl phosphate synthetase 1.