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湖南中医药大学 中西医结合心脑疾病防治湖南省重点实验室,中西医结合学院,长沙 410208
申思楠,在读硕士,从事中西医结合临床妇科内分泌研究,E-mail:948508424@qq.com
雷磊,教授,博士生导师,从事妊娠病中医药防治研究工作,E-mail:leilei1398@163.com
收稿日期:2022-07-02,
网络出版日期:2022-09-22,
纸质出版日期:2023-02-05
移动端阅览
申思楠,牟珍妮,唐丽等.寿胎丸通过调控Nrf2信号通路减轻人绒毛膜滋养层细胞的氧化损伤治疗复发性流产[J].中国实验方剂学杂志,2023,29(03):44-51.
SHEN Sinan,MU Zhenni,TANG Li,et al.Shoutaiwan Ameliorates Oxidative Damage of Human Chorionic Trophoblast Cells by Regulating Nrf2 Signaling Pathway to Treat Recurrent Abortion[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(03):44-51.
申思楠,牟珍妮,唐丽等.寿胎丸通过调控Nrf2信号通路减轻人绒毛膜滋养层细胞的氧化损伤治疗复发性流产[J].中国实验方剂学杂志,2023,29(03):44-51. DOI: 10.13422/j.cnki.syfjx.20222240.
SHEN Sinan,MU Zhenni,TANG Li,et al.Shoutaiwan Ameliorates Oxidative Damage of Human Chorionic Trophoblast Cells by Regulating Nrf2 Signaling Pathway to Treat Recurrent Abortion[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(03):44-51. DOI: 10.13422/j.cnki.syfjx.20222240.
目的
2
研究寿胎丸含药血清通过核因子E
2
相关因子2(Nrf2)信号通路对过氧化氢(H
2
O
2
)损伤的人绒毛膜滋养层细胞(HTR-8/Svneo)的保护作用,并阐明其可能的机制。
方法
2
细胞增殖与活性检测(CCK-8)法检测不同浓度的H
2
O
2
溶液(25、50、100、200、400 μmol·L
-1
)对HTR-8/Svneo增殖的抑制作用,CCK-8法筛选含药血清的最佳浓度。将细胞分为空白组、模型组、地屈孕酮组、寿胎丸组,CCK-8法检测含药血清对H
2
O
2
诱导的HTR-8/Svneo细胞增殖活力的影响,酶联免疫吸附测定法(ELISA)检测各组细胞内活性氧(ROS)含量;蛋白免疫印迹法(Western blot)检测核Nrf2、血红素加氧酶-1(HO-1)、醌氧化还原酶1(NQO1)、胱天蛋白酶-3(Caspase-3)、B细胞淋巴瘤-2(Bcl-2)蛋白表达;细胞免疫荧光检测Nrf2、Bcl-2的表达;实时荧光定量聚合酶链式反应(Real-time PCR)检测Nrf2、Caspase-3、Bcl-2相关X蛋白(Bax)mRNA的表达。
结果
2
CCK-8法筛选H
2
O
2
最佳造模浓度为50 μmol·L
-1
,含药血清的最佳体积分数为10%。与空白组比较,模型组细胞的增殖活力显著降低(
P
<
0.01),细胞内ROS含量显著升高(
P
<
0.01),Nrf2、HO-1、NQO1、Bcl-2蛋白表达明显下降(
P
<
0.05,
P
<
0.01),Caspase-3、Bax蛋白表达显著上升(
P
<
0.01),Nrf2 mRNA表达显著降低(
P
<
0.01),Caspase-3、Bax mRNA的表达明显升高(
P
<
0.05,
P
<
0.01);与模型组比较,寿胎丸组细胞的增殖活力显著上升(
P
<
0.01),细胞内ROS含量显著降低(
P
<
0.01),Nrf2、HO-1、NQO1、Bcl-2蛋白表达明显上升(
P
<
0.05,
P
<
0.01),Caspase-3、Bax蛋白表达明显下降(
P
<
0.05,
P
<
0.01),Nrf2 mRNA表达明显升高(
P
<
0.05),Caspase-3、Bax mRNA的表达明显降低(
P
<
0.05,
P
<
0.01)。
结论
2
寿胎丸含药血清可以通过激活Nrf2信号通路来抑制H
2
O
2
诱导的细胞凋亡,对人绒毛膜滋养层细胞具有一定的保护作用。
Objective
2
To study the protective effect of Shoutaiwan-containing serum on the human chorionic trophoblast cells (HTR-8/Svneo) exposed to hydrogen peroxide (H
2
O
2
) via the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway and to decipher the underlying mechanism.
Method
2
The H
2
O
2
solutions of 25, 50, 100, 200, 400 μmol·L
-1
were used to treated the HTR-8/Svneo cells. The cell counting kit-8 (CCK-8) was employed to measure the proliferation of the cells and further determine the optimal concentration of H
2
O
2
solution for modeling and the drug-containing serum. The cells were divided into a blank group, a model group, a dydrogesterone group, and a Shoutaiwan group. The effect of drug-containing serum on H
2
O
2
-induced proliferation of HTR-8/Svneo cells was detected by CCK-8 assay. The intracellular reactive oxygen species (ROS) in each group was determined by enzyme-linked immunosorbent assay (ELISA). Western blot was employed to determine the protein levels of Nrf2, heme oxygenase-1 (HO-1), quinone oxidoreductase 1 (NQO1), cysteine-containing aspartate-specific protease-3 (Caspase-3), and B cell lymphoma/leukemia-2 (Bcl-2). Cellular immunofluorescence was employed to detect the expression of Nrf2 and Bcl-2. Real-time quantitative polymerase chain reaction (Real-time PCR) was carried out to examine the mRNA level of Nrf2, Caspase-3, and Bcl-2 associated X protein (Bax).
Result
2
The optimal concentration of H
2
O
2
for modeling was 50 μmol·L
-1
, and the optimal concentration of drug-containing serum was 10%. Compared with the blank group, the modeling decreased the proliferation of cells (
P
<
0.01), increased the intracellular ROS (
P
<
0.01), down-regulated the protein levels of Nrf2, HO-1, NQO1, and Bcl-2 (
P
<
0.05,
P
<
0.01), up-regulated the protein levels of Caspase-3 and Bax (P
<
0.01), down-regulated the mRNA level of Nrf2 (
P
<
0.01), and up-regulated the mRNA levels of Caspase-3 and Bax (
P
<
0.05,
P
<
0.01). Compared with the model group, Shoutaiwan-containing serum increased the proliferation of cells (
P
<
0.01), reduced the intracellular ROS (
P
<
0.01), up-regulated the protein levels of Nrf2, HO-1, NQO1, and Bcl-2 (
P
<
0.01), down-regulated the protein levels of Caspase-3 and Bax (
P
<
0.05,
P
<
0.01), up-regulated the mRNA level of Nrf2 (
P
<
0.05), and down-regulated the mRNA levels of Caspase-3 and Bax (
P
<
0.05,
P
<
0.01).
Conclusion
2
Shoutaiwan-containing serum can inhibit H
2
O
2
-induced apoptosis by activating the Nrf2 signaling pathway and has protective effect on human chorionic trophoblast cells.
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