Adhesion of different cell cycle human hepatoma cells to endothelial cells and roles of integrin β1

Table 1 Time dependence of adhesive forces of SMMC-7721 cells to ECV-304 (mean±SD).

Period of time (min)	Adhesion forces (F×10-10N)	n
0-30	39.98±25.77	16
30-60	297.32±82.35	20
60-90	336.49±73.51	18
90-120	301.09±62.04	21

n: number of cells measured.

Table 2 Adhesion forces of different cell cycle SMMC-7721 cells to ECV-304 cells (mean±SD).

Treatment	Adhesion forces (F×10-10N)	n
General SMMC-7721	281.26±70.15	38
G1 phase SMMC-7721	195.42±60.72b,d	31
S phase SMMC-7721	307.65±92.10	35

^bP<0.01 vs compared with general SMMC-7721 cells; ^dP<0.01, compared with S phase SMMC-7721 cells; n: number of cells measured.

Table 3 Expression of integrin β₁ in different cell cycle SMMC-7721 cells (mean±SD).

Treatments	Expressed fluorescent intensity of integrin β1	n
General SMMC-7721	95.7±1.2	3
G1 phase SMMC-7721	76.9±1.9b,d	3
S phase SMMC-7721	94.1±1.6	3

^bP<0.01 vs compared with general SMMC-7721 cells; ^dP<0.01, compared with S phase SMMC-7721 cells; n: number of samples measured.