Page 24 - 《中国药房》2022年24期
P. 24
红花多糖对人肝癌细胞凋亡和自噬的影响及潜在机制
Δ
1
1
2
2
1
1
1*
1, 3 #
白皓天 ,杨 婧 ,李娅兰 ,牛 捷 ,张翔珂 ,张筠昊 ,梁 霄 ,王 锐 (1.黑龙江中医药大学药学院,
哈尔滨 150040;2.黑龙江中医药大学基础医学院,哈尔滨 150040;3.教育部北药基础与应用研究重点实验
室,哈尔滨 150040)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2022)24-2962-07
DOI 10.6039/j.issn.1001-0408.2022.24.04
摘 要 目的 探讨红花多糖(SPS)对人肝癌细胞凋亡和自噬的影响及潜在机制。方法 以人肝癌细胞HepG2、SMMC-7721、Huh-
7为研究对象,以SPS为干预药物,筛选敏感细胞、药物干预浓度及干预时间。以所选敏感细胞为对象,以不同浓度的SPS进行干
预,观察其凋亡、迁移、克隆形成、形态、自噬发生情况,并检测其凋亡、自噬和磷脂酰肌醇-3-激酶(PI3K)/蛋白激酶B(Akt)/哺乳动
物雷帕霉素靶蛋白(mTOR)信号通路相关蛋白的表达情况。结果 SPS可抑制人肝癌细胞HepG2等3种细胞的增殖,其对SMMC-
7721细胞的半数抑制浓度显著低于其余2种细胞(P<0.05)。经低、中、高浓度(20、40、80 μmol/L)SPS干预48 h后,SMMC-7721
细胞凋亡较对照组有所增加,24、48 h 的细胞迁移率(24 h 的 SPS 低浓度组除外)和 24 h 的细胞克隆形成率均较对照组显著降低
(P<0.05或P<0.01);与对照组比较,SPS各浓度组细胞数量均明显减少,自噬水平均有所提升,细胞中剪切的胱天蛋白酶3、胱天
蛋白酶 9、Bax、beclin-1 蛋白的相对表达量和微管相关蛋白 1 轻链 3Ⅱ(LC3Ⅱ)与 LC3Ⅰ的比值均显著升高,Bcl-2、p62、PI3K、
mTOR、Akt 蛋白的相对表达量均显著降低(P<0.05 或 P<0.01)。结论 SPS 可抑制人肝癌 SMMC-7721 细胞的增殖并诱导其凋
亡、自噬,这种作用可能与抑制PI3K/Akt/mTOR信号通路有关。
关键词 红花多糖;人肝癌细胞;SMMC-7721;凋亡;自噬;磷脂酰肌醇-3-激酶/蛋白激酶B/哺乳动物雷帕霉素靶蛋白信号通路
Effect and potential mechanism of Safflower polysaccharide on apoptosis and autophagy of human
hepatocellular carcinoma cells
1
1
1
1
2
1
BAI Haotian ,YANG Jing ,LI Yalan ,NIU Jie ,ZHANG Xiangke ,ZHANG Junhao ,LIANG Xiao ,WANG Rui 1, 3
2
(1. College of Pharmacy,Heilongjiang University of Chinese Medicine,Harbin 150040, China;2. College of
Basic Medicine, Heilongjiang University of Chinese Medicine,Harbin 150040,China;3. Key Laboratory of
Basic and Application Research of Beiyao,Ministry of Education,Harbin 150040,China)
ABSTRACT OBJECTIVE To investigate the effect and potential mechanism of safflower polysaccharide on apoptosis and
autophagy of human hepatocellular carcinoma cells. METHODS Human hepatocellular carcinoma HepG2, SMMC-7721 and Huh-7
cells were selected as subjects, and safflower polysaccharide was used as intervention drug to screen sensitive cells, intervention
concentration and intervention time. The sensitive cells were selected as the object and intervened with different concentrations of
safflower polysaccharide; the apoptosis, migration, clone formation, morphology and autophagy of human hepatocellular
carcinoma cells were observed; the expressions of apoptosis, autophagy and phosphatidyl inositol-3-kinase (PI3K)/protein kinase B
(Akt)/mammals rapamycin target protein (mTOR) signaling pathway related protein were detected. RESULTS safflower
polysaccharide could inhibit the proliferation of 3 kinds of human hepatocellular carcinoma cells, and the half inhibition
concentration of it to SMMC-7721 cells was significantly lower than to other two kinds of cells (P<0.05). After 48 h intervened
with low, medium and high concentrations of safflower polysaccharide (20, 40, 80 μmol/L), the apoptosis of SMMC-7721 cells
was increased compared with the control group, and cell migration rates at 24 and 48 h (except for safflower polysaccharide low-
dose group at 24 h) and clone formation rate at 24 h were significantly decreased compared with the control group (P<0.05 or P<
0.01). Compared with the control group, cell number in safflower polysaccharide groups was significantly decreased, and
autophagy levels were improved to some extent; the relative expressions of cleaved caspase-3, caspase-9, Bax and beclin-1 protein
and ratio of LC3 Ⅱ/LC3 Ⅰ were significantly increased, and
Δ 基金项目 国家自然科学基金资助项目(No.82074271);黑龙江
the relative protein expressions of Bcl-2, p62, PI3K, mTOR
省 省 属 本 科 高 校 中 央 支 持 地 方 高 校 改 革 发 展 资 金 项 目(No.
and Akt were significantly decreased (P<0.05 or P<0.01).
2020YQ05)
CONCLUSIONS Safflower polysaccharide could effectively
*第一作者 硕士研究生。研究方向:天然多糖作为基因载体的可
行性研究。E-mail:447405678@qq.com inhibit the proliferation and induce apoptosis and autophagy of
# 通信作者 教授,硕士生导师,博士。研究方向:新药与新剂型的 human hepatocellular carcinoma SMMC-7721 cells, the
开发。E-mail:wrdx@sina.com mechanism of which may be related to the inhibition of PI3K/
· 2962 · China Pharmacy 2022 Vol. 33 No. 24 中国药房 2022年第33卷第24期