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Naryzhnaya NV, Logvinov SV, Kurbatov BK, Derkachev IA, Mustafina LR, Gorbunov AS, Sirotina MA, Kilin M, Gusakova SV, Maslov LN. The β 2-adrenergic receptor agonist formoterol attenuates necrosis and apoptosis in the rat myocardium under experimental stress-induced cardiac injury. Fundam Clin Pharmacol 2024. [PMID: 38956972 DOI: 10.1111/fcp.13026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 07/04/2024]
Abstract
BACKGROUND Currently, there is no effective therapy for takotsubo syndrome (stress-induced cardiac injury in humans) in the clinics. It has previously been shown that β2-adrenergic receptor (β2-AR) agonist formoterol reduces cardiomyocyte injury in experimental takotsubo syndrome. OBJECTIVES The aim of this study was to investigate whether formoterol prevents apoptosis and necrosis of cardiomyocytes and endothelial cells in stress-induced cardiomyopathy. METHODS Stress-induced cardiac injury was induced by immobilization of rats for 2, 6, and 24 hours. RESULTS The myocardium of stressed rats showed a reduction in contractility and histological manifestations of cardiomyocyte damage: karyopyknosis, perinuclear edema of cardiomyocytes and endothelial cells, and microcirculation disturbances augmented with extended exposure to stress. In addition, apoptosis of endothelial cells was detected 6 hours after the onset of stress and peaked at 24 hours. Apoptosis of cardiomyocytes significantly gained only after 24 hours of stress exposure. These morphological alterations were associated with increased levels of serum creatine kinase-MB, syndecan-1, and thrombomodulin after 24 hours of stress. Administration of β2-AR agonist formoterol (50 μg/kg) four times during 24-hour stress exposure led to the improvement in myocardial inotropy, decrease in the severity of histological signatures, reduction in the number of TUNEL-positive cardiomyocytes, serum creatine kinase-MB, syndecan-1, and thrombomodulin levels. CONCLUSION Present data suggest that apoptosis and necrosis of cardiomyocytes and necrosis of endothelial cells in stress-induced cardiac injury can be mitigated by activation of the β2-AR. However, formoterol did not eliminate completely cardiomyocyte apoptosis, histological alterations, or endothelium injury markers under stress.
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Affiliation(s)
- Natalia V Naryzhnaya
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia, 111a, Kievskaya str., Tomsk, 634012, Russian Federation
| | - Sergey V Logvinov
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia, 111a, Kievskaya str., Tomsk, 634012, Russian Federation
- Siberian State Medical University, 2, Moskovsky tract, Tomsk, 634050, Russian Federation
| | - Boris K Kurbatov
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia, 111a, Kievskaya str., Tomsk, 634012, Russian Federation
| | - Ivan A Derkachev
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia, 111a, Kievskaya str., Tomsk, 634012, Russian Federation
| | - Liliia R Mustafina
- Siberian State Medical University, 2, Moskovsky tract, Tomsk, 634050, Russian Federation
| | - Aleksandr S Gorbunov
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia, 111a, Kievskaya str., Tomsk, 634012, Russian Federation
| | - Maria A Sirotina
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia, 111a, Kievskaya str., Tomsk, 634012, Russian Federation
| | - Mikhail Kilin
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia, 111a, Kievskaya str., Tomsk, 634012, Russian Federation
| | - Svetlana V Gusakova
- Siberian State Medical University, 2, Moskovsky tract, Tomsk, 634050, Russian Federation
| | - Leonid N Maslov
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia, 111a, Kievskaya str., Tomsk, 634012, Russian Federation
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Finsterer J, Stöllberger C. Comments on "Tako-Tsubo syndrome in patients with COVID-19: a single centre retrospective case series". Monaldi Arch Chest Dis 2023. [PMID: 38112661 DOI: 10.4081/monaldi.2023.2787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/06/2023] [Indexed: 12/21/2023] Open
Abstract
Dear Editor, We read with interest the article by Alonzo et al. about a retrospective study of four patients with Takotsubo syndrome (TTS), which was attributed to SARS-CoV-2 infection (SC2I)...
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