8). Table 6 The relationship between the expression of BCL-2 in breast cancer cells and the relative inhibition ratio of 4 kinds of anticancer drugs Drugs BCL-2 + – t P EADM 30.45 ± 2.52 34.87 ± 2.25 3.99 0.001 5-Fu 30.44 ± 1.49 34.40 ± 2.34 t’ = 4.25 0.001※ NVB 34.72 ± 3.44 41.19 ± 2.60 4.51 <0.05 DDP 24.32 NVP-BGJ398 ic50 ± 3.29 29.87 ± 1.90 4.30 <0.05 ※T' -test Table 7 The relationship between the expression of BAD in breast cancer cells and the relative inhibition ratio of
4 kinds of anticancer drugs Drugs BAD + – T P EADM 39.95 ± 2.29 28.34 ± 6.67 T’ = 5.78 <0.05※ 5-Fu 30.33 ± 3.90 25.76 ± 4.94 1.998 0.061 NVB 38.60 ± 2.67 26.79 ± 6.42 T' = 5.67 <0.05※ DDP 28.70 ± 2.56 26.40 ± 2.44 2.044 0.056 ※T' -test Table 8 The relationship between the combined expression of BCL-2 and BAD in breast cancer cells and the relative inhibition ratio of 4 kinds of anticancer drugs Drugs BCL-2(+)BAD(-) BCL-2(+)BAD(+) BCL-2(-)BAD(+) BCL-2(-)BAD(-) (n = 8) (n = 5) (n = 6) (n = 1) EADM 25.93 ± 3.05 33.47 ± 4.65 40.16 ± 5.20 37.72 5-Fu 24.18 ± 4.18 30.38 ± 4.81 37.86 ± 2.80 35.11 NVB 26.06 ± 7.43 36.62 ± 2.78 42.50 ± 2.63 38.88 DDP 23.01 ± 4.14 26.01 ± 4.73 31.90 ± 6.81 28.52 Discussion BCL-2 is a gene of anti-apoptosis, the mechanism is possibly related to affect Ca2+ entering the cell, thereby regulating
the signal transduction in the cells[2]. Cisplatin manufacturer BAD and BCL-2 are all members of BCL-2 gene family, and the role Sinomenine of BAD is to promote apoptosis, BAD genes induced apoptosis through to form heterodimers with
BCL-2, thus inhibited the anti-apoptotic role of BCL-2 [3] The researches on gastrointestinal tumors, and kidney tumors have found that high expression of BCL-2 of inhibitor of apoptosis, induced tumor growth accelerated, the poor prognosis and poor response to treatment [4, 5]. In this study we find that the expression of BCL-2, BAD in tissues of breast carcinoma are significantly lower than tissues of normal breast and tissues of breast fibroma. Compared with menopause breast carcinoma, youth breast carcinoma shows higher malignant degree, the invasion is stronger, the transfer rate is higher, the prognosis is worse [6]. In this study we found that the expression rates of BCL-2 and BAD in tissues of youth breast carcinoma were significantly lower than in the tissues of menopause breast carcinoma. In breast cancer histologic grade I to III the expression of BCL-2 assumed the decreasing tendency, the differences had significant difference, the expresses of BAD buy Lazertinib during this process also gradually reduced. The expression of BCL-2 in breast cancer tissues with axillary lymph node metastasis were significantly lower than that without lymph node metastasis.