HE Xiang,LI Guo-ying,WANG Dan-dan,et al.Investigation on Anti-atherosclerosis Mechanism of Di'ao Xinxuekang Based on NLRP3 Inflammasome[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(20):55-62.
HE Xiang,LI Guo-ying,WANG Dan-dan,et al.Investigation on Anti-atherosclerosis Mechanism of Di'ao Xinxuekang Based on NLRP3 Inflammasome[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(20):55-62. DOI: 10.13422/j.cnki.syfjx.20211904.
Investigation on Anti-atherosclerosis Mechanism of Di'ao Xinxuekang Based on NLRP3 Inflammasome
To investigate the effects of Di'ao Xinxuekang (DXXK) on NLRP3 inflammasome in mouse RAW264.7 macrophages and thoracic aorta of rats with atherosclerosis (AS), so as to explore its anti-AS mechanism.
Method
2
RAW264.7 cells were stimulated with oxidized low density lipoprotein (ox-LDL) and then intervened with MCC950 and DXXK. The contents of tumor necrosis factor-
α
(TNF-
α
) and interleukin-1
β
(IL-1
β
) were determined by enzyme linked immunosorbent assay (ELISA). The mRNA and protein expression levels of Nod-like receptor protein 3 (NLRP3), inflammasome adaptor protein apoptosis-associated speck-like protein containing CARD (ASC), and cysteine-dependent aspartate-directed protease-1 (Caspase-1) were detected by real-time polymerase chain reaction (Real-time PCR) and Western blotting. Sixty male SD rats were randomly divided into the normal group, model group, atorvastatin group (2.0 mg·kg
-1
), as well as high-, medium-, and low-dose (100, 30, and 10 mg·kg
-1
) DXKK groups, with 10 rats in each group. The rats were exposed to the high-fat diet and vitamin D
2
for inducing AS. The blood lipid level was measured using an automatic biochemical analyzer, followed by the calculation of AS index (AI). The contents of serum TNF-
α
and IL-1
β
were determined by ELISA, and the mRNA and protein expression levels of NLRP3, ASC, and Caspase-1 in thoracic aorta were assayed by Real-time PCR and Western blotting. HE staining and Sirius red staining were conducted to observe the pathomorphological changes in the abdominal aorta and aortic sinus.
Result
2
Compared with the normal group, the model group exhibited significantly increased TNF-
α
and IL-1
β
contents and up-regulated NLRP3, ASC, and Caspase-1 mRNA and protein expression in RAW264.7 cells (
P
<
0.01). The above indexes in each drug administration group were significantly reduced in contrast to those in the model group (
P
<
0.05,
P
<
0.01). The comparison with the model group showed that cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and AI in each DXXK group significantly declined, while the high-density lipoprotein cholesterol (HDL-C) was significantly elevated (
P
<
0.05,
P
<
0.01). The levels of serum TNF-
α
and IL-1
β
and the mRNA and protein expression levels of NLRP3, ASC, and Caspase-1 in the thoracic aorta were decreased (
P
<
0.05,
P
<
0.01). Abdominal aortic lesions and fibrous hyperplasia of aortic sinus were significantly improved.
Conclusion
2
DXXK has a significant anti-AS effect, which is possibly related to the inhibition of NLRP3 inflammasome.
关键词
Keywords
references
GISTERÅ A , HANSSON G K . The immunology of atherosclerosis [J]. Nat Rev Nephrol , 2017 , 13 ( 6 ): 368 - 380 .
ZHU Y , XIAN X , WANG Z , et al . Research progress on the relationship between atherosclerosis and inflammation [J]. Biomolecules , 2018 , 8 ( 3 ): 80 .
KARASAWA T , TAKAHASHI M . Role of NLRP3 inflammasomes in atherosclerosis [J]. J Atheroscler Thromb , 2017 , 24 ( 5 ): 443 - 451 .
ZHANG S , LI L , DENG M , et al . Di'ao Xinxuekang:therapeutic potential in cardiovascular diseases [J]. Curr Mol Pharmacol , 2021 , doi: 10.2174/1874467214666210203212341 http://dx.doi.org/10.2174/1874467214666210203212341 .
MANGAN M S J , OLHAVA E J , ROUSH W R , et al . Targeting the NLRP3 inflammasome in inflammatory diseases [J]. Nat Rev Drug Discov , 2018 , 17 ( 8 ): 588 - 606 .
SU M , WANG W , LIU F , et al . Recent progress on the discovery of NLRP3 inhibitors and their therapeutic potential [J]. Curr Med Chem , 2021 , 28 ( 3 ): 569 - 582 .
NAKASHIMA Y , PLUMP A S , RAINES E W , et al . ApoE-deficient mice develop lesions of all phases of atherosclerosis throughout the arterial tree [J]. Arterioscler Thromb , 1994 , 14 ( 1 ): 133 - 140 .
YU P , XIONG T , TENEDERO C B , et al . Rosuvastatin reduces aortic sinus and coronary artery atherosclerosis in SR-B1 (scavenger receptor class B type 1)/ApoE (apolipoprotein E) double knockout mice independently of plasma cholesterol lowering [J]. Arterioscler Thromb Vasc Biol , 2018 , 38 ( 1 ): 26 - 39 .
LIVAK K J , SCHMITTGEN T D . Analysis of relative gene expression data using real-time quantitative PCR and the 2(-delta delta C(T)) method [J]. Methods , 2001 , 25 ( 4 ): 402 - 408 .
LUO J , WANG X , JIANG X , et al . Rutaecarpine derivative R3 attenuates atherosclerosis via inhibiting NLRP3 inflammasome-related inflammation and modulating cholesterol transport [J]. FASEB J , 2020 , 34 ( 1 ): 1398 - 1411 .
HOSEINI Z , SEPAHVAND F , RASHIDI B , et al . NLRP3 inflammasome:its regulation and involvement in atherosclerosis [J]. J Cell Physiol , 2018 , 233 ( 3 ): 2116 - 2132 .
GREBE A , HOSS F , LATZ E . NLRP3 inflammasome and the IL-1 pathway in atherosclerosis [J]. Circ Res , 2018 , 122 ( 12 ): 1722 - 1740 .
KOUSHKI K , SHAHBAZ S K , MASHAYEKHI K , et al . Anti-inflammatory action of statins in cardiovascular disease:the role of inflammasome and toll-like receptor pathways [J]. Clin Rev Allergy Immunol , 2021 , 60 ( 2 ): 175 - 199 .