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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Su, Gang Sun, Guangli Lv, Jian Zhang, Weiwei Liu, Hai Tang, Yajing Su, Haoang |
| Abstract | Background The dysfunction and injury of human umbilical vein endothelial cells (HUVECs) are key events of atherosclerosis (AS). Atorvastatin (ATV) has been shown to play a protective role on endothelial cells. However, the associated molecular mechanisms remain not fully illustrated. Methods HUVECs were treated with oxidized low-density lipoprotein (ox-LDL) to mimic the pathological conditions of endothelial cell injury in AS. Cell injuries were assessed according to cell viability, cell apoptosis, cycle progression, oxidative stress and inflammatory responses using CCK-8 assay, flow cytometry assay or commercial kits. The expression of hsa_circ_0004831, miR-182-5p, and C-X-C motif chemokine 12 (CXCL12) mRNA was examined using quantitative real-time PCR (qPCR). The expression of CXCL12 protein was quantitated by western blot. The predicted target relationship between miR-182-5p and hsa_circ_0004831 or CXCL12 was verified by pull-down assay, dual-luciferase reporter assay or RIP assay. Results The expression of hsa_circ_0004831 was upregulated by ox-LDL but downregulated by ATV in HUVECs. ATV promoted cell viability and cell cycle progression but inhibited apoptosis, oxidative stress and inflammation in ox-LDL-treated HUVECs, while the role of ATV was partially reversed by hsa_circ_0004831 overexpression. MiR-182-5p was targeted by hsa_circ_0004831, and hsa_circ_0004831 overexpression-restored apoptosis, oxidative stress and inflammation were blocked by miR-182-5p restoration. Further, CXCL12 was targeted by miR-182-5p, and miR-182-5p inhibition-stimulated apoptosis, oxidative stress and inflammation were lessened by CXCL12 knockdown. Conclusion Hsa_circ_0004831-targeted miR-182-5p/CXCL12 regulatory network is one of the pathways by which ATV protects against ox-LDL-induced endothelial injuries. |
| Related Links | https://bmccardiovascdisord.biomedcentral.com/counter/pdf/10.1186/s12872-021-01998-4.pdf |
| Ending Page | 13 |
| Page Count | 13 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 14712261 |
| DOI | 10.1186/s12872-021-01998-4 |
| Journal | BMC Cardiovascular Disorders |
| Issue Number | 1 |
| Volume Number | 21 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2021-05-01 |
| Access Restriction | Open |
| Subject Keyword | Cardiology Cardiac Surgery Angiology Blood Transfusion Medicine Internal Medicine Medicine Public Health Atorvastatin Ox-LDL HUVEC Hsa_circ_0004831 MiR-182-5p CXCL12 Medicine/Public Health |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cardiology and Cardiovascular Medicine |
| Journal Impact Factor | 2/2023 |
| 5-Year Journal Impact Factor | 2.3/2023 |
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