Table 2.

The expression and methylation of ECRG 4 in cell lines

Cell lines	Expression	Methylation
NEC	-a	-c
EC109	-	+d
EC9706	-	+
GLC	-	+
Hek293	+b	-

^a-, unexpression;

^b+, expression;

^c-, unmethylation;

^d+, methylation.