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The Secretome Deregulations in a Rat Model of Endotoxemic Shock. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6650464. [PMID: 34349874 PMCID: PMC8328724 DOI: 10.1155/2021/6650464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 06/13/2021] [Indexed: 12/21/2022]
Abstract
Introduction Septic shock is a systemic inflammatory response syndrome associated with organ failures. Earlier clinical diagnosis would be of benefit to a decrease in the mortality rate. However, there is currently a lack of predictive biomarkers. The secretome is the set of proteins secreted by a cell, tissue, or organism at a given time and under certain conditions. The plasma secretome is easily accessible from biological fluids and represents a good opportunity to discover new biomarkers that can be studied with nontargeted “omic” strategies. Aims To identify relevant deregulated proteins (DEP) in the secretome of a rat endotoxemic shock model. Methods Endotoxemic shock was induced in rats by intravenous injection of lipopolysaccharides (LPS, S. enterica typhi, 0.5 mg/kg) and compared to controls (Ringer Lactate, iv). Under isoflurane anesthesia, carotid cannulation allowed mean arterial blood pressure (MAP) and heart rate (HR) monitoring and blood sampling at different time points (T0 and T50 or T0 and T90, with EDTA and protease inhibitor). Samples were prepared for large-scale tandem mass spectrometry (MS-MS) based on a label-free quantification to allow identification of the proteins deregulated upon endotoxemic conditions. A Gene Ontology (GO) analysis defined several clusters of biological processes (BP) in which the DEP are involved. Results Ninety minutes after shock induction, the LPS group presents a reduction in MAP (-45%, p < 0.05) and increased lactate levels (+27.5%, p < 0.05) compared to the control group. Proteomic analyses revealed 10 and 33 DEP in the LPS group, respectively, at 50 and 90 minutes after LPS injection. At these time points, GO-BP showed alterations in pathways involved in oxidative stress response and coagulation. Conclusion This study proposes an approach to identify relevant DEP in septic shock and brings new insights into the understanding of the secretome adaptations upon sepsis.
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Audigane L, Persello A, Piriou N, Ferron M, Trochu JN, Lauzier B, Gauthier C, Rozec B. Early nebivolol treatment is beneficial in myocardial infarction in rats partly through β3-adrenoceptor remodelling. Clin Exp Pharmacol Physiol 2021; 48:1007-1015. [PMID: 33314348 DOI: 10.1111/1440-1681.13447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/29/2020] [Indexed: 11/28/2022]
Abstract
It remains unknown whether β-blockers are useful and safe in acute myocardial infarction (MI). Owing to its pharmacological profile and vasodilating action, nebivolol (N) is useful in MI. The aim of the present study was to assess in rat whether early nebivolol treatment could be beneficial in MI. It remains unknown whether β-blockers are useful and safe in acute MI. On day (D) 0, male Sprague-Dawley rats underwent left coronary artery ligation (MI) or simple thoracotomy (SHAM). On D1 and D2, the rats were treated with either nebivolol (5 mg.kg-1 .day-1 , MI-N and Sham-N) or vehicle (V, MI-V and Sham-V). On D3, heart rate, left ventricle (LV) intrinsic contractility (PESmid) and arterial elastance were measured. Cardiac and aortic β-Adrenoceptor (AR) subtype mRNA were quantified using real time quantitative RT-qPCR. Catecholamine response was assessed on isolated heart and aortic rings with isoproterenol. PESmid was decreased in MI without worsening the decrease nebivolol. In LV, β1 - and β3 -AR mRNA were respectively decreased and increased in all MI. β3 -AR mRNA increase was partly limited by nebivolol. Ex vivo, basal contractility was less decreased in MI-N than in MI-V. Isoproterenol response was only altered in MI-V. In MI aorta, Nebi prevented β2 - and β3 -AR mRNA increases. In addition, Acetylcholine-induced relaxation was lowered in MI-V but preserved with nebivolol. We demonstrated an early modulation of cardiovascular β3 -AR transcription early MI. Despite its putative negative inotropic properties, nebivolol did not worsen cardiac function in basal conditions and preserved LV catecholamine response.
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Affiliation(s)
- Leslie Audigane
- L'institut du thorax, INSERM, CNRS, CHU Nantes Nantes, UNIV Nantes, Nantes, France
| | - Antoine Persello
- L'institut du thorax, INSERM, CNRS, CHU Nantes Nantes, UNIV Nantes, Nantes, France
- InFlectis BioScience, Nantes, France
| | - Nicolas Piriou
- L'institut du thorax, INSERM, CNRS, CHU Nantes Nantes, UNIV Nantes, Nantes, France
| | - Marine Ferron
- L'institut du thorax, INSERM, CNRS, CHU Nantes Nantes, UNIV Nantes, Nantes, France
| | - Jean-Noël Trochu
- L'institut du thorax, INSERM, CNRS, CHU Nantes Nantes, UNIV Nantes, Nantes, France
| | - Benjamin Lauzier
- L'institut du thorax, INSERM, CNRS, CHU Nantes Nantes, UNIV Nantes, Nantes, France
| | - Chantal Gauthier
- L'institut du thorax, INSERM, CNRS, CHU Nantes Nantes, UNIV Nantes, Nantes, France
| | - Bertrand Rozec
- L'institut du thorax, INSERM, CNRS, CHU Nantes Nantes, UNIV Nantes, Nantes, France
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Chang YT, Huang WC, Cheng CC, Ke MW, Tsai JS, Hung YM, Huang NC, Huang MS, Wann SR. Effects of epinephrine on heart rate variability and cytokines in a rat sepsis model. Bosn J Basic Med Sci 2020; 20:88-98. [PMID: 29984678 PMCID: PMC7029199 DOI: 10.17305/bjbms.2018.3565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 06/06/2018] [Indexed: 01/31/2023] Open
Abstract
Catecholamines have both anti-inflammatory and vasoactive properties. A decreased cardiac response to catecholamines has been associated with a high risk of death in sepsis and septic shock. The aim of this study was to investigate the effects of epinephrine (EPI) on heart rate variability (HRV) and autonomic balance, as well as cytokine levels, in a rat sepsis model. Thirty-six male Sprague-Dawley rats were assigned to 4 experimental groups and 2 control groups of 6 rats each. The rats in the experimental groups were inoculated with a lipopolysaccharide (LPS, endotoxin) to establish a sepsis model. Group A received only LPS; group B received LPS, antecedent EPI and the nonselective β-blocker propranolol; group C received LPS and antecedent EPI; and group D received LPS, antecedent EPI and the selective β1-blocker esmolol. One control group received EPI and the other received saline placebo. Heart rate variability (HRV) was analyzed and tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β) levels were measured. Measurements were carried out at baseline, at 0 hour after EPI infusion, and at 0.5, 2, and 4 hours after LPS inoculation. There were significant differences in HRV and cytokine levels between the groups, indicating that LPS infusion caused autonomic imbalance. Antecedent EPI significantly decreased the level of TNF-α in group C compared with group A in which TNF-α level peaked at 2 hours and then declined. Propranolol (group B) but not esmolol (group D) administration resulted in elevated TNF-α levels, comparable to those observed in group A. In conclusion, antecedent administration of EPI in a rat sepsis model inhibits the production of TNF-α possibly via the β2-adrenoceptor.
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Affiliation(s)
- Yun-Te Chang
- Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung City; Department of Nursing, Yuh-Ing Junior College of Health Care and Management, Kaohsiung City; Department of Physical Therapy, Shu-Zen Junior College of Medicine and Management, Kaohsiung City; School of Medicine, National Yang-Ming University, Taipei City, Taiwan, Republic of China.
| | - Wei-Chun Huang
- Cardiovascular Medical Center, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan, Republic of China
| | - Chin-Chang Cheng
- Cardiovascular Medical Center, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan, Republic of China
| | - Meng-Wei Ke
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan, Republic of China
| | - Jung-Shun Tsai
- Department of Nursing, Yuh-Ing Junior College of Health Care and Management, Kaohsiung City, Taiwan, Republic of China
| | - Yao-Min Hung
- Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan, Republic of China
| | - Neng-Chyan Huang
- Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan, Republic of China
| | - Mu-Shun Huang
- School of Medicine, National Yang-Ming University, Taipei City, Taiwan, Republic of China.
| | - Shue-Ren Wann
- Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan, Republic of China.
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Roul D, Rozec B, Ferron M, Erfanian M, Persello A, Audigane L, Grabherr A, Erraud A, Merlet N, Guijarro D, Muramatsu I, Lauzier B, Gauthier C. β 1-Adrenergic cardiac contractility is increased during early endotoxemic shock: Involvement of cyclooxygenases. Life Sci 2019; 236:116865. [PMID: 31525428 DOI: 10.1016/j.lfs.2019.116865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 12/17/2022]
Abstract
AIMS Endothelial dysfunction is one of the earliest symptoms in septic patients and plays an important role in the cardiovascular alterations. However, the endothelial mechanisms involved in the impaired sympathetic regulation of the cardiovascular system are not clear. This study aimed to determine the role of the endocardial endothelium (EE) in the cardiac β-adrenergic (β-AR) remodeling at the early phase of endotoxemic shock. MAIN METHODS Rats received either lipopolysaccharide (LPS) or saline (control) intravenously. Three hours later, β-AR cardiac contractility was evaluated on papillary muscles with or without a functional EE. KEY FINDINGS Isoproterenol-induced contractility was strongly increased in papillary muscles from LPS rats. A similar increase was observed with a β1-AR stimulation, whereas β2-AR and β3-AR produced similar contractility in control and LPS treatments. The removal of the EE did not modify β1-AR-induced contractility in controls, whereas it abolished the increased β1-AR response in LPS-treated muscles. In LPS-treated papillary muscle, the increased β1-AR-induced contractility was not modified by pretreatment with a NOS inhibitor or an endothelin receptor antagonist. Conversely, the increased β1-AR-induced contractility was abolished by indomethacin, a non-selective cyclooxygenase (COX) inhibitor, as well as by selective inhibitors of COX1 and COX2. An early treatment with indomethacin improved the survival of LPS rat. SIGNIFICANCE Our results suggest that the EE is involved in the increased cardiac β1-AR contractility in the early phase of endotoxemic shock. This effect is mediated through the activation of COX1 and COX2 and suggests these may be novel putative therapeutic targets during endotoxemic shock.
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Affiliation(s)
- David Roul
- l'institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | - Bertrand Rozec
- l'institut du thorax, INSERM, CNRS, UNIV Nantes, CHU Nantes, Nantes, France.
| | - Marine Ferron
- l'institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | | | | | - Leslie Audigane
- l'institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | | | | | - Nolwenn Merlet
- l'institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | - Damien Guijarro
- l'institut du thorax, INSERM, CNRS, UNIV Nantes, CHU Nantes, Nantes, France
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Mirabegron, a β 3-adrenoceptor agonist reduced platelet aggregation through cyclic adenosine monophosphate accumulation. Eur J Pharmacol 2018; 829:79-84. [PMID: 29654782 DOI: 10.1016/j.ejphar.2018.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 04/05/2018] [Accepted: 04/09/2018] [Indexed: 11/22/2022]
Abstract
Mirabegron is a β3-adrenoceptor agonist and released on the marked for the treatment of overactive bladder. Because mirabegron is the only β3-adrenoceptor agonist available and substances that increase the levels of cyclic adenosine monophosphate (cAMP) inhibit platelet activity, we tested the hypothesis that mirabegron could have antiplatelet activity. Collagen- and thrombin induced platelet aggregation, thromboxane B2 (TXB2) and cyclic nucleotides quantification and calcium (Ca2+) mobilization were determined in the absence and presence of mirabegron in human washed platelets. Our results revealed that mirabegron (10-300 µM) produced significant inhibitions on platelet aggregation induced by collagen- or thrombin, accompanied by greater intracellular levels of cAMP. The β3-adrenoceptor antagonist L 748,337 (1 µM) and the adenylate cyclase inhibitor, SQ 22,536 (100 µM) reversed the inhibition induced by mirabegron in thrombin-stimulated platelets. The selective antagonists for β1-and β2-adrenoceptors, atenolol and ICI 117,551 (3 µM), respectively did not interfere on the inhibition induced by mirabegron. In Fluo-4 loaded platelets, mirabegron reduced the total and intracellular Ca2+ levels. Pre-incubation with mirabegron almost abolished the levels of TXB2. Mirabegron did not augment the intracellular levels of cyclic guanosine monophosphate. In conclusion, mirabegron inhibited human platelet aggregation through cAMP accumulation, thus suggesting that substances that activate β3-adrenoceptor could be beneficial as adjuvant antiplatelet therapy.
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Tazumi S, Omoto S, Nagatomo Y, Kawahara M, Yokota-Nakagi N, Kawakami M, Takamata A, Morimoto K. Estrogen replacement attenuates stress-induced pressor responses through vasorelaxation via β 2-adrenoceptors in peripheral arteries of ovariectomized rats. Am J Physiol Heart Circ Physiol 2017; 314:H213-H223. [PMID: 29030338 DOI: 10.1152/ajpheart.00148.2017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We examined whether chronic estrogen replacement has an inhibitory effect on stress-induced pressor responses via activation of β2-adrenoceptor (AR) in peripheral arteries of ovariectomized rats. Female Wistar rats aged 9 wk were ovariectomized. After 4 wk, pellets containing either 17β-estradiol (E2) or placebo (Pla) were subcutaneously implanted into the rats. After 4 wk of treatment, rats underwent cage-switch stress, and, in a separate experiment, a subset received an infusion of isoproterenol (ISO) with or without pretreatment with the β1-AR blocker atenolol or the β2-AR blocker butoxamine. In addition, the isolated mesenteric artery was used to assess the concentration-related relaxing responses to ISO and the β1- or β2-AR mRNA level. The cage-switch stress-induced pressor response was significantly attenuated in the E2-treated group compared with the Pla-treated group. Pretreatment with atenolol reduced blood pressure responses in both groups. However, butoxamine enhanced the pressor response only in the E2-treated group, resulting in no difference between the two groups. In addition, the intravenous ISO-induced depressor response was significantly enhanced in the E2-treated group compared with the Pla-treated group. Furthermore, the difference in the depressor response was abolished by pretreatment with butoxamine but not by atenolol. In the isolated mesenteric artery, butoxamine caused a rightward shift in ISO-induced concentration-related relaxation in the E2-treated group. The β2-AR mRNA level in the mesenteric artery was higher in the E2-treated group than in the Pla-treated group. These results suggest that estrogen replacement attenuated the stress-induced pressor response probably by suppressing vasoconstriction via activation of β2-ARs in peripheral arteries of ovariectomized rats. NEW & NOTEWORTHY In this study, we show, for the first time, that estrogen replacement has an inhibitory effect on the psychological stress-induced pressor response through vasorelaxation via β2-adrenoceptors, probably due to overexpression of β2-adrenoceptor mRNA, in peripheral arteries of ovariectomized rats.
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Affiliation(s)
- Shoko Tazumi
- Department of Environmental Health, Faculty of Life Science and Human Technology, Nara Women's University , Nara , Japan
| | - Sayo Omoto
- Department of Environmental Health, Faculty of Life Science and Human Technology, Nara Women's University , Nara , Japan
| | - Yu Nagatomo
- Department of Environmental Health, Faculty of Life Science and Human Technology, Nara Women's University , Nara , Japan
| | - Mariko Kawahara
- Department of Environmental Health, Faculty of Life Science and Human Technology, Nara Women's University , Nara , Japan
| | - Naoko Yokota-Nakagi
- Department of Environmental Health, Faculty of Life Science and Human Technology, Nara Women's University , Nara , Japan
| | - Mizuho Kawakami
- Department of Environmental Health, Faculty of Life Science and Human Technology, Nara Women's University , Nara , Japan
| | - Akira Takamata
- Department of Environmental Health, Faculty of Life Science and Human Technology, Nara Women's University , Nara , Japan
| | - Keiko Morimoto
- Department of Environmental Health, Faculty of Life Science and Human Technology, Nara Women's University , Nara , Japan
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