Table 3.

Tumor Volume and Tumor Weight in each Group

Group	Tumor Volume (mm3)	Tumor Weight (g)
Control	1294.77±121.84	1.95±0.36
MB	1046.64±120.83	1.63±0.43
sPD1	850.57±96.32*	1.11±0.36*
miR-34a	714.62±80.32*	0.97±0.23*
Combined	512.35±54.04**	0.65±0.24**

Notes: *P≤0.05. **P≤0.01.

Abbreviations: Control, 0.9% NaCl+ultrasound; MB, cationic lipid microbubbles+ultrasound; sPD1, cationic lipid microbubbles/sPD-1+ultrasound; miR-34a, cationic lipid microbubbles/miR-34a+ultrasound; Combined, cationic lipid microbubbles/sPD-1+cationic lipid microbubbles/miR-34a+ultrasound.