Regulation of demethylation and re-expression of RASSF1A gene in gastric cancer cell lines by combined treatment of 5-Aza-CdR and NaB

Table 1 mRNA expression of RASSF1A gene in gastric cancer cell lines SGC7901 and BGC823

	1	2	3	4	5	6	7
SGC7901	0	0.29 ± 0.03	0.45 ± 0.05	0	0	0.75 ± 0.04a	0.88 ± 0.09a
BGC823	0	0.36 ± 0.05	0.64 ± 0.07	0	0	0.82 ± 0.09a	0.89 ± 0.05a

^aP < 0.05, vs groups 2 and 3 (F_SGC7901 = 208.83, P < 0.001, F_BGC823 = 62.10, P < 0.001).

Table 2 Protein expression of RASSF1A gene in gastric cancer cell lines SGC7901 and BGC823

	1	2	3	4	5	6	7
SGC7901	0	0.66 ± 0.07	0.71 ± 0.09	0	0	0.88 ± 0.06a	0.89 ± 0.05a
BGC823	0	0.45 ± 0.03	0.65 ± 0.08	0	0	0.78 ± 0.04a	0.83 ± 0.06a

^aP < 0.05, compared with groups 2 and 3 (F_SGC7901 = 14.41, P < 0.001, F_BGC823 = 46.01, P < 0.001).