ArticleIranian journal of basic medical sciences2019
Quercetin protects PC-12 cells against hypoxia injury by down-regulation of miR-122.
Article in Iranian journal of basic medical sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.
- Modulation of miRNAs by Phytochemicals in Cerebral Ischemia: A Systematic Review of In Vitro and In Vivo Studies.Phytotherapy research : PTR · 2025Pooled it
- Review of neuroprotective potential of natural products against hypoxia-induced neuronal injury.Frontiers in pharmacology · 2026Review
- Regulatory Roles and Therapeutic Potential of miR-122-5p in Hypoxic-Ischemic Brain Injury: Comprehensive Review.Cell biochemistry and biophysics · 2025Review
- Dimethyloxalylglycine (DMOG), a Hypoxia Mimetic Agent, Does Not Replicate a Rat Pheochromocytoma (PC12) Cell Biological Response to Reduced Oxygen Culture.Biomolecules · 2022Article
- The Preventive Effects of Quercetin on Preterm Birth Based on Network Pharmacology and Bioinformatics.Reproductive sciences (Thousand Oaks, Calif.) · 2022Article
- Review
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesImpairment of nerve cells of brain induced by hypoxia results in energy-deprivation and dysfunction, which accompanies with neurons apoptosis. Improving function of nerve cells is important for treating cerebral anoxia. This study aimed to investigate the role of Quercetin (Quer) in hypoxia-induced injury of pheochromocytoma (PC-12) cells. MATERIALS AND
methodsPC-12 cells were cultured under anoxic condition for induction of hypoxia injury and/or treatment with Quer, transfection with pre-miR-122, anti-miR-122 or their negative controls. After Quer treatment, viability, migration, and cell apoptosis of PC-12 cells were analyzed by CCK-8 assay, transwell assay and flowcytometry analysis, respectively. Cell proliferation-associated proteins and cell apoptosis-associated proteins were analyzed by Western blot. Relative miR-122 expression in Quer-treated cells or transfection efficacy of miR-122 was analyzed by qRT-PCR. Finally, main components in AMP-activated protein kinase (AMPK) and Wnt/β-catenin signaling pathways were analyzed by Western blot.
resultsQuer alleviated hypoxia-induced injury in PC-12 cells by increasing viability, promoting cell proliferation, enhancing migration and repressing apoptosis. Also, miR-122 was down-regulated in Quer-treated cells. miR-122 overexpression decreased cell viability and migration, and increased cell apoptosis in hypoxia- treated PC-12 cells, but miR-122 silencing led to the opposite results. We also found that AMPK and Wnt/β-catenin signaling pathways were activated by Quer in hypoxia-induced injury, but were inactivated in hypoxia-induced cells by overexpression of miR-122.
conclusionQuer could repress hypoxia-induced injury in PC-12 cells by activating AMPK and Wnt/β-catenin signaling pathways via down-regulation of miR-122.
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