Table 2. IC₅₀ value and sensitivity index in stable CCA cell lines to gemcitabine.

Conditions	IC50 value of gemcitabine (μM)
	Normoxia	SI	P-value	Hypoxia	SI	P-value
KKU-213-pMSCV	0.10±0.02			0.42±0.21
KKU-213-pMSCV-miR210	0.09±0.01	1.12	0.257	3.58±1.23	0.12	0.013*
KKU-100-control vector	0.46±0.05			0.81±0.07
KKU-100-miR210 sponge	0.07±0.01	7.03	<0.001*	0.09±0.01	9.26	0.003*

SI, sensitivity index.

*P-value less than 0.05 was considered statistically significant.