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1.南京中医药大学 第一临床医学院,南京 210023
2.江苏省中医药防治肿瘤协同创新中心,南京 210023
3.南京中医药大学 附属医院,江苏省中医院,南京 210004
江东,硕士,从事中医学肿瘤方向研究,E-mail:jdio@163.com
肖君,博士,主任中医师,从事消化道早癌中西医结合诊治研究,E-mail: cutujun@aliyun.com
收稿日期:2021-09-10,
网络出版日期:2021-12-13,
纸质出版日期:2022-07-05
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江东,程海波,沈卫星等.参白解毒方抑制HCT116细胞增殖的药效及机制[J].中国实验方剂学杂志,2022,28(13):34-41.
JIANG Dong,CHENG Haibo,SHEN Weixing,et al.Efficacy and Mechanism of Shenbai Jiedu Prescription Against Proliferation of HCT116 Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(13):34-41.
江东,程海波,沈卫星等.参白解毒方抑制HCT116细胞增殖的药效及机制[J].中国实验方剂学杂志,2022,28(13):34-41. DOI: 10.13422/j.cnki.syfjx.20220423.
JIANG Dong,CHENG Haibo,SHEN Weixing,et al.Efficacy and Mechanism of Shenbai Jiedu Prescription Against Proliferation of HCT116 Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(13):34-41. DOI: 10.13422/j.cnki.syfjx.20220423.
目的
2
探讨参白解毒方(SBJDF)抑制结直肠癌(CRC)细胞HCT116增殖的药效及机制。
方法
2
利用参白解毒方(0、0.25、0.5、1、2、4 g·L
-1
)处理HCT116细胞48 h,噻唑蓝(MTT)比色法检测参白解毒方对HCT116细胞活力的影响,分别设置空白组、参白解毒方(1、2、4 g·L
-1
)组,倒置显微镜观察参白解毒方对HCT116细胞形态的影响,克隆形成实验观察参白解毒方对HCT116细胞增殖能力的影响,JC-1探针检测参白解毒方对HCT116细胞线粒体膜电位(Δ
ψ
m)的影响,流式细胞仪检测HCT116细胞周期分布和细胞凋亡率,蛋白免疫印迹法(Western blot)分析参白解毒方对细胞周期,抗凋亡以及核转录因子-
κ
B(NF-
κ
B)信号通路相关蛋白的影响。
结果
2
参白解毒方有效抑制HCT116细胞活力,引起细胞形态改变,呈浓度依赖性;与空白组比较,参白解毒方(1、2、4 g·L
-1
)组克隆形成率均明显下降(
P
<
0.05,
P
<
0.01),参白解毒方(2、4 g·L
-1
)组诱导HCT116细胞发生G
0
/G
1
期阻滞(
P
<
0.05,
P
<
0.01)。与空白组比较,参白解毒方(1、2、4 g·L
-1
)组周期蛋白D
1
(CyclinD
1
)表达明显下降(
P
<
0.05,
P
<
0.01),参白解毒方(2、4 g·L
-1
)组细胞周期蛋白A
2
(CyclinA
2
),周期蛋白依赖性激酶4(CDK4)蛋白表达明显下降(
P
<
0.05,
P
<
0.01),参白解毒方(4 g·L
-1
)组周期蛋白依赖性激酶1(CDK1)表达显著下降(
P
<
0.01)。与空白组比较,参白解毒方(2、4 g·L
-1
)组课诱导HCT116细胞凋亡,并下调抗凋亡相关蛋白B淋巴细胞瘤-2(Bcl-2)、Bcl-2相关xl蛋白(Bcl-xl)表达(
P
<
0.05,
P
<
0.01),降低HCT116细胞线粒体膜电位;与空白组比较,参白解毒方(2、4 g·L
-1
)组可下调NF-
κ
B信号通路相关蛋白I
κ
B激酶
α(
IKK
α
)、NF-
κ
B抑制蛋白
α
(I
κ
B
α
)、磷酸化p65蛋白(p-p65)的表达(
P
<
0.05,
P
<
0.01)。
结论
2
参白解毒方有效抑制HCT116细胞增殖,其机制可能通过抑制HCT116细胞NF-
κ
B信号通路的激活,引起细胞周期阻滞,诱导细胞凋亡。
Objective
2
To investigate the mechanism by which Shenbai Jiedu prescription (SBJDF) inhibits the proliferation of colorectal cancer (CRC) HCT116 cells.
Method
2
After 48 h treatment of HCT116 cells with SBJDF (0, 0.25, 0.5, 1, 2, 4 g·L
-1
), the viability of HCT116 cells were determined by methyl thiazolyl tetrazolium (MTT) colorimetry. Following the classification of cells into blank control group and SBJDF (1, 2, 4 g·L
-1
) groups, the effect of SBJDF on HCT116 cell morphology was observed under an inverted microscope. The effects of SBJDF on the proliferation of HCT116 cells and mitochondrial membrane potential (Δ
ψ
m) were detected by colony formation assay and JC-1 probe, respectively. The flow cytometry was then performed for determining cell cycle distribution and apoptosis. The effects of SBJDF on cell cycle-, apoptosis-, and nuclear factor kappa-B (NF-
κ
B) signaling pathway-related proteins were determined by Western blot.
Result
2
SBJDF effectively inhibited the vitality of HCT116 cells and changed their morphology in a concentration-dependent manner. Compared with the blank control group, SBJDF at 1, 2, 4 g·L
-1
significantly reduced cell colony formation (
P
<
0.05,
P
<
0.01),and SBJDF at 2 and 4 g·L
-1
arrested the HCT116 cell cycle at G
0
/G
1
phase (
P
<
0.05,
P
<
0.01). Compared with the blank control group, SBJDF at 1, 2, 4 g·L
-1
remarkably down-regulated the protein expression of CyclinD
1
(
P
<
0.05,
P
<
0.01). SBJDF at 2 and 4 g·L
-1
lowered the CyclinA
2
and cyclin-dependent kinase 4 (CDK4) (
P
<
0.05,
P
<
0.01). SBJDF at 4 g·L
-1
reduced the cyclin-dependent kinase 1 (CDK1) (
P
<
0.01). Compared with the blank control group, SBJDF at 2 and 4 g·L
-1
induced HCT116 cell apoptosis, down-regulated the protein expression of anti-apoptosis-related proteins Bcl-2 and Bcl-xl as well as the NF-
κ
B signaling pathway-related proteins I
κ
B kinase
α
(IKK
α
),inhibitor
α
of NF-
κ
B (I
κ
B
α
),and phospho-NF-
κ
B p65 (p-p65) (
P
<
0.05,
P
<
0.01), and diminished the mitochondrial membrane potential of HCT116 cells.
Conclusion
2
SBJDF inhibits the proliferation of HCT116 cells, which may be related to its inhibition of the activation of NF-
κ
B signaling pathway and the induction of cell cycle arrest and apoptosis.
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