Endothelial progenitor cells-derived exosomes transfer microRNA-30e-5p to regulate Erastin-induced ferroptosis in human umbilical vein endothelial cells via the specificity protein 1/adenosine monophosphate-activated protein kinase axis
| Autor: | Jia Xia, Xiaoying Song, Jing Meng, Danfei Lou |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Sp1 Transcription Factor
fungi human umbilical vein endothelial cell Bioengineering mir-30e-5p General Medicine endothelial injury AMP-Activated Protein Kinases Exosomes Applied Microbiology and Biotechnology sp1 Piperazines carbohydrates (lipids) angiogenesis MicroRNAs embryonic structures cardiovascular system Human Umbilical Vein Endothelial Cells Ferroptosis Humans TP248.13-248.65 circulatory and respiratory physiology Biotechnology Endothelial Progenitor Cells Signal Transduction |
| Zdroj: | Bioengineered, Vol 13, Iss 2, Pp 3566-3580 (2022) |
| ISSN: | 2165-5987 |
| Popis: | Ferroptosis is a kind of cell death triggered by intracellular phospholipid peroxidation. Human umbilical vein blood endothelial progenitor cells-Exosomes (EPCs-Exos) affect ferroptosis. This study sought to explore the mechanism of EPCs-Exos in human umbilical vein endothelial cell (HUVEC) ferroptosis. EPCs-Exos were isolated and identified. HUVECs were treated with Erastin at IC50 concentration. Ferroptosis-related indexes and iron ion content were detected using kits. HUVEC migration and angiogenesis before/after ferroptosis inhibitor treatment were observed by cell scratch and angiogenesis assays. After Erastin induction, HUVECs were transfected with miR-30e-5p mimic, or treated with EPCs-Exos and EPCs-Exos transfected with miR-30e-5p inhibitor. miR-30e-5p expression was detected by RT-qPCR. The binding relationship between miR-30e-5p and specificity protein 1 (SP1) was verified by dual-luciferase assay. SP1 expression was detected by Western blot. HUVECs treated with Erastin and EPCs-Exos were transfected with pcDNA3.1-SP1. Protein levels of adenosine monophosphate-activated protein kinase (AMPK) and p-AMPK were detected by Western blot. EPCs-Exos inhibited Erastin-induced HUVEC ferroptosis and endothelial injury. Erastin inhibited miR-30e-5p and EPCs-Exo treatment recovered miR-30e-5p expression. miR-30e-5p was encapsulated in EPCs-Exos. After inhibiting miR-30e-5p in EPCs, the inhibitory effect of EPCs-Exos on HUVEC ferroptosis was attenuated. miR-30e-5p targeted SP1. Overexpression of SP1 partially reversed the effect of EPCs-Exos on improving HUVEC ferroptosis and increasing phosphorylation levels of AMPK. Collectively, EPCs-Exos inhibited Erastin-induced HUVEC ferroptosis by upregulating miR-30e-5p, inhibiting SP1, and activating the AMPK pathway. |
| Databáze: | OpenAIRE |
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