Table III.

Relative expression of TGF-β, SOX4 and Ezh2 in the breast tumor and pulmonary metastases (2^−ΔΔCq).

		TGF-β1		SOX4		Ezh2
Groups	N	Breast cancer	Pulmonary nodule	Breast cancer	Pulmonary nodule	Breast cancer	Pulmonary nodule
Biopsy	14	0.67±0.19b	1.55±0.54	0.85±0.42b	6.36±4.71	0.54±0.23a	4.33±1.82
Non-biopsy	15	0.43±0.06	0.64±0.19	0.50±0.22	2.49±0.91	0.39±0.02	1.74±0.01
t-value	–	4.70	2.77	2.80	1.40	2.41	2.47
P-value	–	0.000	0.050	0.009	0.235	0.027	0.069

^aP<0.05

^bP<0.01 compared with the non-biopsy group. TGF-β1, transforming growth factor-β1; Ezh2, Enhancer of Zeste homolog 2.