ReferenceID 4827
Anti-inflammatory effects of cannabidiol against lipopolysaccharides in cardiac sodium channels
Br J Pharmacol
Background: Sepsis, caused by a dysregulated response to infections, can lead to cardiac arrhythmias. However, the mechanisms underlying sepsis-induced inflammation, and how inflammation provokes cardiac arrhythmias, are
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Record Fields
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- Reference Id
- 4827
- Evidence Id
- 21417
- Core Evidence Id
- 21417
- Source Reference Id
- 2903
- Herb2 Reference Id
- HBREF003700
- Subject Paper Key
- HBIN019558_35906756
- Pubmed Id
- 35906756
- Doi
- 10.1111/bph.15936
- Paper Title
- Anti-inflammatory effects of cannabidiol against lipopolysaccharides in cardiac sodium channels
- Paper Abstract
- Background: Sepsis, caused by a dysregulated response to infections, can lead to cardiac arrhythmias. However, the mechanisms underlying sepsis-induced inflammation, and how inflammation provokes cardiac arrhythmias, are not well understood. We hypothesized that cannabidiol (CBD) may ameliorate lipopolysaccharide (LPS)-induced cardiotoxicity, via Toll-like receptors (TLR4) and cardiac sodium channels (Na V 1.5). Methods and results: We incubated human immune cells (THP-1 macrophages) with LPS for 24 h, then extracted the THP-1 incubation media. ELISA assays showed that LPS (1 or 5 μg·ml -1 ), in a concentration-dependent manner, or MPLA (TLR4 agonist, 5 μg·ml -1 ) stimulated the THP-1 cells to release inflammatory cytokines (TNF-α and IL-6). Prior incubation (4 h) with CBD (5 μM) or C34 (TLR4 antagonist: 5 μg·ml -1 ) inhibited LPS and MPLA-induced release of both IL-6 and TNF-α. Human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) were subsequently incubated for 24 h in the media extracted from THP-1 cells incubated with LPS, MPLA alone, or in combination with CBD or C34. Voltage-clamp experiments showed a right shift in the voltage dependence of Na V 1.5 activation, steady state fast inactivation (SSFI), increased persistent current and prolonged in silico action potential duration in hiSPC-CMs incubated in the LPS or MPLA-THP-1 media. Co-incubation with CBD or C34 rescued the biophysical dysfunction caused by LPS and MPLA. Conclusion: Our results suggest that CBD may protect against sepsis-induced inflammation and subsequent arrhythmias through (i) inhibition of the release of inflammatory cytokines, antioxidant and anti-apoptotic effects and/or (ii) a direct effect on Na V 1.5.
- Journal
- Br J Pharmacol
- Publish Year
- 2022
- Experiment Subject
- human; hispc-cms; human-induced pluripotent stem cell-derived cardiomyocytes; thp-1 cells; thp-1 macrophages
- Experiment Type
- Cell Experiment
- Phenotype Related
- Sepsis-induced Inflammation; Sepsis; Cardiac Arrhythmias; Arrhythmias
- Paper Title Cn
- Paper Title En
- Anti-inflammatory effects of cannabidiol against lipopolysaccharides in cardiac sodium channels
- Bilingual Status
- semi_complete