中国医学科学院 北京协和医学院 药用植物研究所,北京 100193
涂舒欣,在读硕士,从事神经药理学研究,Tel:010-57833504,Email:shuxintu@126.com
贺晓丽,副研究员,从事神经药理学研究,Tel:010-57833233,Email:xlhe@implad.ac.cn
收稿:2023-04-17,
网络出版:2023-05-31,
纸质出版:2024-02-05
移动端阅览
涂舒欣,王艳,贺晓丽.丹酚酸B-葛根素联用对氧糖剥夺/复氧损伤的SH-SY5Y神经细胞焦亡的影响[J].中国实验方剂学杂志,2024,30(03):54-63.
TU Shuxin,WANG Yan,HE Xiaoli.Effect of Salvianolic Acid B Combined with Puerarin on Pyroptosis of SH-SY5Y Cells Injured by Oxygen-glucose Deprivation/Reoxygenation[J].Chinese Journal of Experimental Traditional Medical Formulae,2024,30(03):54-63.
涂舒欣,王艳,贺晓丽.丹酚酸B-葛根素联用对氧糖剥夺/复氧损伤的SH-SY5Y神经细胞焦亡的影响[J].中国实验方剂学杂志,2024,30(03):54-63. DOI: 10.13422/j.cnki.syfjx.20231106.
TU Shuxin,WANG Yan,HE Xiaoli.Effect of Salvianolic Acid B Combined with Puerarin on Pyroptosis of SH-SY5Y Cells Injured by Oxygen-glucose Deprivation/Reoxygenation[J].Chinese Journal of Experimental Traditional Medical Formulae,2024,30(03):54-63. DOI: 10.13422/j.cnki.syfjx.20231106.
目的
2
基于细胞焦亡探讨丹酚酸B和葛根素联用对氧糖剥夺/复氧(OGD/R)损伤的SH-SY5Y神经细胞的保护作用及机制。
方法
2
利用SH-SY5Y细胞构建OGD/R损伤模型,设立空白组、OGD/R组、10 μmol·L
-1
丹酚酸B组、100 μmol·L
-1
葛根素组、10 μmol·L
-1
丹酚酸B和100 μmol·L
-1
葛根素联用组及10 μmol·L
-1
NOD样受体蛋白3(NLRP3)炎症小体抑制剂MCC950组。除空白组外,其余各组细胞在OGD/R 6 h后迅速复糖复氧12 h进行OGD/R造模。采噻唑蓝(MTT)法检测细胞存活率,光学显微镜下观测细胞形态,分光光度计法检测培养上清中乳酸脱氢酶(LDH)释放率,Hoechst/碘化丙啶(PI)染色检测细胞膜损伤情况,实时荧光定量聚合酶链式反应(Real-time PCR)检测NLRP3、胱天蛋白酶-1(Caspase-1)、消皮素D(GSDMD)、凋亡斑点样蛋白(ASC)和白细胞介素-1
β
(IL-1
β
) mRNA表达水平,免疫荧光检测NLRP3和Caspase-1蛋白表达的变化,蛋白免疫印迹法(Western blot)检测IL-1
β
、ASC、NLRP3、Caspase-1和剪切胱天蛋白酶-1(cleaved Caspase-1)蛋白表达的变化。
结果
2
与空白组比较,OGD/R组SH-SY5Y细胞存活率显著降低(
P
<
0.01),细胞形态受损,培养上清中LDH渗漏率显著提高(
P
<
0.01),细胞膜破损,细胞中NLRP3、Caspase-1、GSDMD、ASC和IL-1
β
mRNA表达水平显著提高(
P
<
0.01),IL-1
β
、ASC、NLRP3、Caspase-1和cleaved Caspase-1蛋白的表达水平显著提高(
P
<
0.01)。与OGD/R组比较,丹酚酸B、葛根素与丹酚酸B和葛根素联用均能显著提高OGD/R损伤后SH-SY5Y细胞的存活率(
P
<
0.01);与单用组比较,联用组具有更好的效果(
P
<
0.01)。与OGD/R组比较,丹酚酸B和葛根素联用及MCC950均能改善细胞形态,降低细胞上清液LDH的渗漏(
P
<
0.01),减轻细胞膜损伤水平,降低SH-SY5Y细胞NLRP3、Caspase-1、GSDMD、ASC和IL-1
β
的mRNA表达水平(
P
<
0.05,
P
<
0.01),降低IL-1
β
、ASC、NLRP3、Caspase-1和cleaved Caspase-1蛋白的表达水平(
P
<
0.05,
P
<
0.01)。
结论
2
结果表明,丹酚酸B和葛根素联用能减轻OGD/R对SH-SY5Y细胞造成的损伤,这可能与其能够抑制细胞焦亡相关。
Objective
2
To investigate the effect and mechanism of salvianolic acid B combined with puerarin in protecting the SH-SY5Y cells from the damage by oxygen-glucose deprivation/reoxygenation (OGD/R) based on pyroptosis.
Method
2
SH-SY5Y cells were used to establish the model of OGD/R, and cells were classified into the control, OGD/R, 10 μmol·L
-1
salvianolic acid B, 100 μmol·L
-1
puerarin, 10 μmol·L
-1
salvianolic acid B + 100 μmol·L
-1
puerarin, and 10 μmol·L
-1
NOD-like receptor protein 3 (NLRP3) inhibitor MCC950 groups. Except the control group, other groups were rapidly reoxygenated for 12 h after 6 h OGD for modeling. The cell survival rate was determined by the methyl thiazolyl tetrazolium (MTT) assay. An optical microscope was used to observe the cell morphology. A spectrophotometer was used to determine the content of lactic dehydrogenase (LDH) in culture supernatant. Cell damage was measured by Hoechst/PI staining. The mRNA levels of NLRP3, cysteinyl aspartate specific proteinase-1 (Caspase-1), gasdermin D (GSDMD), apoptosis-associated speck-like protein (ASC), and interleukin-1
β
(IL-1
β
) were determined by real-time fluorescence quantitative polymerase chain reaction (Real-time PCR). The protein activation of Caspase-1 and NLRP3 was detected by immunofluorescence. Western blot was employed to determine the protein levels of IL-1
β
, ASC, NLRP3, Caspase-1, and cleaved Caspase-1.
Result
2
Compared with the control group, the OGD/R group showed decreased cell survival rate (
P
<
0.01), damaged cell morphology, increased leakage rate of LDH (
P
<
0.01), up-regulated mRNA levels of NLRP3, Caspase-1, GSDMD, ASC, and IL-1
β
(
P
<
0.01), and up-regulated protein levels of IL-1
β
, ASC, NLRP3, Caspase-1, and cleaved Caspase-1 (
P
<
0.01). Compared with the OGD/R group, salvianolic acid B, puerarin, and salvianolic acid B combined with puerarin improved cell survival rate (
P
<
0.01), and the combined treatment group outperformed salvianolic acid B and puerarin used alone (
P
<
0.01). Salvianolic acid B combined with puerarin and MCC950 both improved cell morphology, reduced the leakage of LDH (
P
<
0.01), alleviated cell damage, and down-regulated the mRNA levels of NLRP3, Caspase-1, GSDMD, ASC, and IL-1
β
(
P
<
0.05,
P
<
0.01) and also the protein levels of IL-1
β
, ASC, NLRP3, Caspase-1, and cleaved Caspase-1 (
P
<
0.05,
P
<
0.01).
Conclusion
2
The results indicated that salvianolic acid B combined with puerarin can alleviate the OGD/R-induced damage of SH-SY5Y cells by inhibiting pyroptosis.
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