CTRP12 Ameliorated Lipopolysaccharide-Induced Cardiomyocyte Injury
| Autor: | Fei Ren, E Jin, Meng-Qiao Zhou, Dong-Dong Duan, Yu-Zhi Yang, Jing Wu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Lipopolysaccharides
medicine.medical_specialty Lipopolysaccharide Down-Regulation 010402 general chemistry medicine.disease_cause 01 natural sciences Adenoviridae Cell Line Rats Sprague-Dawley chemistry.chemical_compound Internal medicine Drug Discovery medicine Animals Myocytes Cardiac Cells Cultured Inflammation chemistry.chemical_classification Oxidase test Reactive oxygen species TUNEL assay Interleukin-6 Tumor Necrosis Factor-alpha 010405 organic chemistry Gene Transfer Techniques General Chemistry General Medicine Malondialdehyde Rats Up-Regulation 0104 chemical sciences Endocrinology chemistry Apoptosis Intercellular Signaling Peptides and Proteins Tumor necrosis factor alpha Oxidative stress Interleukin-1 |
| Zdroj: | Chemical and Pharmaceutical Bulletin. 68:133-139 |
| ISSN: | 1347-5223 0009-2363 |
| DOI: | 10.1248/cpb.c19-00646 |
| Popis: | C1q/tumor necrosis factor (TNF)-related protein 12 (CTRP12) is a secretory protein that participates in the regulation of glucose and lipid metabolism in obesity and diabetes. Its role in cardiovascular disease, particularly sepsis-induced cardiac injury, is unclear. Here, we stimulated cardiomyocytes with lipopolysaccharide (LPS) to establish an in vitro cardiomyocyte injury model and CTRP12 was overexpressed with an adenovirus delivery system. Overexpression of CTRP12 reduced the transcription and release of pro-inflammatory cytokines from LPS-stimulated cardiomyocytes, including TNFα, interleukin-1 (IL-1), and IL-6. Reactive oxygen species (ROS) level increased and the oxidation/redox system was disturbed in LPS-stimulated cardiomyocytes, as evident from the decrease in superoxide dismutase activity and an increase in reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity and malondialdehyde level. CTRP12 overexpression decreased the increasing level of ROS and ameliorated the unbalance in the oxidation/redox system in LPS-stimulated cardiomyocytes. The viability of cardiomyocytes decreased after LPS stimulation, and the cells underwent apoptosis. CTRP12-overexpressing cardiomyocytes showed a decrease in the number of terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling (TUNEL)-positive cells, and the ratio of B cell lymphoma (Bcl)-1/Bax in these cells was recovered. In comparison with the control group, LPS-stimulated cardiomyocytes showed reduced expression of nuclear factor E2-related factor 2 (NRF2), while CTRP12-overexpressing cardiomyocytes showed elevated NRF2 expression. Small-interfering RNA-mediated silencing of NRF2 expression in cardiomyocytes resulted in the inhibition of the protective effects of CTRP12. Thus, CTRP12 ameliorated injury in LPS-stimulated cardiomyocytes in an NRF2-dependent manner. |
| Databáze: | OpenAIRE |
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