Table 1. Competitive cellular binding effect of heparin derivatives.

Heparin derivative	Mean ± SD (%)
	10 μg/ml	50 μg/ml
Tetrasaccharide	93.7 ± 10.9	86.7 ± 8.6
Hexasaccharide	86.4 ± 6.9	75.4 ± 10.9
Octasaccharide	54.5 ± 17.1 (**)	39.2 ± 11.9 (***)
Decasaccharide	33.4 ± 5.6 (**)	24.2 ± 3.5 (***)
de-2-O-SH	48.9 ± 8.6 (***)	41.4 ± 13 (***)
de-6-O-SH	47 ± 8.5 (***)	35.9 ± 8.7 (***)
de-N-SH	52.8 ± 4.5 (***)	35.5 ± 12.6 (***)
NAc-H	62.1 ± 1.3 (***)	55.5 ± 13.6 (***)
NAc-de-O-SH	95.8 ± 8.2	92.4 ± 9.8
HMWH	56.8 ± 4.4 (***)	28.9 ± 1.8 (***)
LMWH	42.6 ± 9.2 (***)	33.2 ± 4 (***)

The average amount of 0.4 μM wtECP bound to Beas-2B cells was set as 100% binding. **, P < 0.01; ***, P < 0.001