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Yin J, Wang Y, Han W, Ge W, Yu Q, Jing Y, Yan W, Liu Q, Gong L, Yan S, Wang S, Li X, Li Y, Hu H. Oxytocin Attenuates Sympathetic Innervation with Inhibition of Cardiac Mast Cell Degranulation in Rats after Myocardial Infarction. J Pharmacol Exp Ther 2024; 390:240-249. [PMID: 38902033 DOI: 10.1124/jpet.124.002064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 05/05/2024] [Accepted: 05/31/2024] [Indexed: 06/22/2024] Open
Abstract
Sympathetic hyperinnervation is the leading cause of fatal ventricular arrhythmia (VA) after myocardial infarction (MI). Cardiac mast cells cause arrhythmias directly through degranulation. However, the role and mechanism of mast cell degranulation in sympathetic remodeling remain unknown. We investigated the role of oxytocin (OT) in stabilizing cardiac mast cells and improving sympathetic innervation in rats. MI was induced by coronary artery ligation. Western blotting, immunofluorescence, and toluidine staining of mast cells were performed to determine the expression and location of target protein. Mast cells accumulated significantly in peri-infarcted tissues and were present in a degranulated state. They expressed OT receptor (OTR), and OT infusion reduced the number of degranulated cardiac mast cells post-MI. Sympathetic hyperinnervation was attenuated as assessed by immunofluorescence for tyrosine hydroxylase (TH). Seven days post-MI, the arrhythmia score of programmed electrical stimulation was higher in vehicle-treated rats with MI than in rats treated with OT. An in vitro study showed that OT stabilized mast cells via the phosphoinositide 3-kinase/protein kinase B (PI3K/Akt) signaling pathway. Further in vivo studies on OTR-deficient mice showed worsening mast cell degranulation and worsening sympathetic innervation. OT pretreatment inhibited cardiac mast cell degranulation post-MI and prevented sympathetic hyperinnervation, along with mast cell stabilization via the PI3K/Akt pathway. SIGNIFICANCE STATEMENT: This is the first study to elucidate the role and mechanism of oxytocin (OT) in inflammatory-sympathetic communication mediated sympathetic hyperinnervation after myocardial infarction (MI), providing new approaches to prevent fatal arrhythmias.
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Affiliation(s)
- Jie Yin
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Ye Wang
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Weizhong Han
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Weili Ge
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Qingxia Yu
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Yanyan Jing
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Wenju Yan
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Qian Liu
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Liping Gong
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Suhua Yan
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Shuanglian Wang
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Xiaolu Li
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Yan Li
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
| | - Hesheng Hu
- Department of Cardiology (J.Y., Y.W., S.Y., H.H.), Department of Emergency Medicine (X.L.), and Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine (Y.L.), The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China; Department of Cardiology, Shandong Provincial Hospital affiliated with Shandong First Medical University, Jinan, China (J.Y., W.H.); Department of Cardiology, Taizhou Hospital of Zhejiang Province affiliated with Wenzhou Medical University, Zhejiang, China (W.G.); School of Medicine, Shandong University, Jinan, China (Q.Y., Y.J., W.Y., Q.L.); Department of Infectious Disease and Hepatology, the Second Hospital of Shandong University, Shandong University, Jinan, China (L.G.); and Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China (S.W.)
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Khori V, Mohammad Zadeh F, Tavakoli-Far B, Alizadeh AM, Khalighfard S, Ghandian Zanjan M, Gharghi M, Khodayari S, Khodayari H, Keshavarz P. Role of oxytocin and c-Myc pathway in cardiac remodeling in neonatal rats undergoing cardiac apical resection. Eur J Pharmacol 2021; 908:174348. [PMID: 34280399 DOI: 10.1016/j.ejphar.2021.174348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 07/07/2021] [Accepted: 07/12/2021] [Indexed: 11/26/2022]
Abstract
Oxytocin (OT) is a nonapeptide hormone that can improve cardiomyocyte proliferation, suggesting a potential heart regeneration function. Here, we investigated the role of oxytocin and the c-Myc pathway in cardiac remodeling in neonatal rats undergoing cardiac apical resection. We have utilized a knockout of oxytocin receptor (OTR) with OTR-shRNA. A neonatal rat model of cardiac resection (≈10%-15%) was first established. The protein levels of OTR and c-Myc and the expression of cyclin d1 and c-Myc genes were then evaluated in the cardiac tissues at 1, 7, and 21 days after cardiac resection. We also analyzed the proliferation of cardiomyocytes through α-actinin, BrdU, and ki-67 markers. At last, the hemodynamic and electrophysiologic functions were evaluated eight weeks after cardiac resection. At 21 days, the regeneration of cardiomyocytes was repaired among rats in the control and resection groups, while OTR-shRNA groups were failed to improve. Inhibition of OTR failed cardiac regeneration and reduced the number of proliferating cardiomyocytes. The c-Myc protein was significantly reduced in the OTR-shRNA injection hearts. Moreover, we have severely found a depressed heart function in the OTR-shRNA injection animals. These observations revealed that the OT must improve cardiac remodeling in neonatal rat hearts by regulating the c-Myc pathway.
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Affiliation(s)
- Vahid Khori
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Fatemeh Mohammad Zadeh
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Bahareh Tavakoli-Far
- Dietary Supplements and Probiotic Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Ali Mohammad Alizadeh
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran; Breast Disease Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Solmaz Khalighfard
- Breast Disease Research Center, Tehran University of Medical Sciences, Tehran, Iran; Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maziar Ghandian Zanjan
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Maryam Gharghi
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Saeed Khodayari
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; International Center for Personalized Medicine, Düsseldorf, Germany
| | - Hamid Khodayari
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; International Center for Personalized Medicine, Düsseldorf, Germany
| | - Pedram Keshavarz
- Department of Radiology, Tbilisi State Medical University (TSMU), Tbilisi, Georgia
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Jankowski M, Broderick TL, Gutkowska J. The Role of Oxytocin in Cardiovascular Protection. Front Psychol 2020; 11:2139. [PMID: 32982875 PMCID: PMC7477297 DOI: 10.3389/fpsyg.2020.02139] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 07/30/2020] [Indexed: 12/13/2022] Open
Abstract
The beneficial effects of oxytocin on infarct size and functional recovery of the ischemic reperfused heart are well documented. The mechanisms for this cardioprotection are not well defined. Evidence indicates that oxytocin treatment improves cardiac work, reduces apoptosis and inflammation, and increases scar vascularization. Oxytocin-mediated cytoprotection involves the production of cGMP stimulated by local release of atrial natriuretic peptide and synthesis of nitric oxide. Treatment with oxytocin reduces the expression of proinflammatory cytokines and reduces immune cell infiltration. Oxytocin also stimulates differentiation stem cells to cardiomyocyte lineages as well as generation of endothelial and smooth muscle cells, promoting angiogenesis. The beneficial actions of oxytocin may include the increase in glucose uptake by cardiomyocytes, reduction in cardiomyocyte hypertrophy, decrease in oxidative stress, and mitochondrial protection of several cell types. In cardiac and cellular models of ischemia and reperfusion, acute administration of oxytocin at the onset of reperfusion enhances cardiomyocyte viability and function by activating Pi3K and Akt phosphorylation and downstream cellular signaling. Reperfusion injury salvage kinase and signal transducer and activator of transcription proteins cardioprotective pathways are involved. Oxytocin is cardioprotective by reducing the inflammatory response and improving cardiovascular and metabolic function. Because of its pleiotropic nature, this peptide demonstrates a clear potential for the treatment of cardiovascular pathologies. In this review, we discuss the possible cellular mechanisms of action of oxytocin involved in cardioprotection.
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Affiliation(s)
- Marek Jankowski
- Cardiovascular Biochemistry Laboratory, University of Montreal Hospital Centre, Montreal, QC, Canada.,Department of Medicine, University of Montreal, Montreal, QC, Canada
| | - Tom L Broderick
- Laboratory of Diabetes and Exercise Metabolism, Department of Physiology, College of Graduate Studies, Midwestern University, Glendale, AZ, United States
| | - Jolanta Gutkowska
- Cardiovascular Biochemistry Laboratory, University of Montreal Hospital Centre, Montreal, QC, Canada.,Department of Medicine, University of Montreal, Montreal, QC, Canada
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Wang M, Zhou R, Xiong W, Wang Z, Wang J, He L, Qian J. Oxytocin mediated cardioprotection is independent of coronary endothelial function in rats. Peptides 2020; 130:170333. [PMID: 32497565 DOI: 10.1016/j.peptides.2020.170333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/28/2020] [Accepted: 05/28/2020] [Indexed: 12/19/2022]
Abstract
The cardioprotective effect of oxytocin (OT) has been well established. However, there are no related studies on the role of endothelia in oxytocin-induced cardioprotection. Endothelial dysfunction (ED) model was established by injection of 0.01 % Triton X-100 in the isolated rat heart. Oxytocin pretreatment was conducted at the end of stabilization for 40 min, followed by 30 min global ischemia and 60 min reperfusion to induce I/R injury. Coronary perfusion pressure, hemodynamics and arrhythmia severity scores were measured respectively. High-sensitivity cardiac troponin T (hs-cTnT) was evaluated by enzyme-linked immunosorbent assay. Infarct size was detected by triphenyltetrazolium chloride staining. The morphological changes in coronary endothelium were observed by scanning electron microscopy. Injection of 0.01 % Triton X-100 caused significant reduction of CPP induced by histamine and endothelium removal from scanning electron microscopy, but SNP had no significant effect. Oxytocin pretreatment showed significant recovery in LVDP, ±dp/dtmax, RPP and SI after reperfusion (P < 0.05). Additionally, I/R injury led to a rise of arrhythmia severity score, hs-cTnT and infarct size. No significant differences between ED-OT-I/R and OT-I/R groups were found in arrhythmia severity score, hs-cTnT, and infarct size (P > 0.05). I/R injury exacerbated the decrease in CPP and worsened the migration, deformation, and fracture of coronary endothelium, while oxytocin reversed these injuries. Despite the presence of endothelial damages, oxytocin partially alleviated I/R- and Triton-induced endothelial damages. The cardioprotective effects of oxytocin are independent of endothelial function in alleviating I/R injury and I/R-induced coronary endothelial dysfunction.
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Affiliation(s)
- Mo Wang
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Rui Zhou
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Wei Xiong
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhuoran Wang
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jun Wang
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Liang He
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China; Department of Anesthesiology, Yan'an Hospital of Kunming City, Kunming Medical University, Kunming, China
| | - Jinqiao Qian
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China.
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Wang P, Wang SC, Yang H, Lv C, Jia S, Liu X, Wang X, Meng D, Qin D, Zhu H, Wang YF. Therapeutic Potential of Oxytocin in Atherosclerotic Cardiovascular Disease: Mechanisms and Signaling Pathways. Front Neurosci 2019; 13:454. [PMID: 31178679 PMCID: PMC6537480 DOI: 10.3389/fnins.2019.00454] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 04/23/2019] [Indexed: 12/12/2022] Open
Abstract
Coronary artery disease (CAD) is a major cardiovascular disease responsible for high morbidity and mortality worldwide. The major pathophysiological basis of CAD is atherosclerosis in association with varieties of immunometabolic disorders that can suppress oxytocin (OT) receptor (OTR) signaling in the cardiovascular system (CVS). By contrast, OT not only maintains cardiovascular integrity but also has the potential to suppress and even reverse atherosclerotic alterations and CAD. These protective effects of OT are associated with its protection of the heart and blood vessels from immunometabolic injuries and the resultant inflammation and apoptosis through both peripheral and central approaches. As a result, OT can decelerate the progression of atherosclerosis and facilitate the recovery of CVS from these injuries. At the cellular level, the protective effect of OT on CVS involves a broad array of OTR signaling events. These signals mainly belong to the reperfusion injury salvage kinase pathway that is composed of phosphatidylinositol 3-kinase-Akt-endothelial nitric oxide synthase cascades and extracellular signal-regulated protein kinase 1/2. Additionally, AMP-activated protein kinase, Ca2+/calmodulin-dependent protein kinase signaling and many others are also implicated in OTR signaling in the CVS protection. These signaling events interact coordinately at many levels to suppress the production of inflammatory cytokines and the activation of apoptotic pathways. A particular target of these signaling events is endoplasmic reticulum (ER) stress and mitochondrial oxidative stress that interact through mitochondria-associated ER membrane. In contrast to these protective effects and machineries, rare but serious cardiovascular disturbances were also reported in labor induction and animal studies including hypotension, reflexive tachycardia, coronary spasm or thrombosis and allergy. Here, we review our current understanding of the protective effect of OT against varieties of atherosclerotic etiologies as well as the approaches and underlying mechanisms of these effects. Moreover, potential cardiovascular disturbances following OT application are also discussed to avoid unwanted effects in clinical trials of OT usages.
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Affiliation(s)
- Ping Wang
- Department of Genetics, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Stephani C Wang
- Department of Medicine, Albany Medical Center, Albany, NY, United States
| | - Haipeng Yang
- Department of Pediatrics, The Forth Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Chunmei Lv
- Department of Physiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Shuwei Jia
- Department of Physiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Xiaoyu Liu
- Department of Physiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Xiaoran Wang
- Department of Physiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Dexin Meng
- Department of Physiology, Jiamusi University, Jiamusi, China
| | - Danian Qin
- Department of Physiology, Shantou University of Medical College, Shantou, China
| | - Hui Zhu
- Department of Physiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Yu-Feng Wang
- Department of Physiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
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Polshekan M, Khori V, Alizadeh AM, Ghayour-Mobarhan M, Saeidi M, Jand Y, Rajaei M, Farnoosh G, Jamialahmadi K. The SAFE pathway is involved in the postconditioning mechanism of oxytocin in isolated rat heart. Peptides 2019; 111:142-151. [PMID: 29635063 DOI: 10.1016/j.peptides.2018.04.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 12/14/2022]
Abstract
Oxytocin (OT) has a postconditioning effect against the ischemia-reperfusion (I/R) injury. However, its precise cardioprotection mechanism at the early reperfusion phase remains under debate. Our previous study revealed that OT postconditioning (OTpost) is cardioprotective by activating the Reperfusion Injury Salvage Kinase (RISK) pathway. Therefore, the present study is aimed to determine the biological effects of OTpost via the OT receptor and the activation of the JAK/STAT3 signaling pathway, mitochondrial adenosine triphosphate-dependent potassium channel (mitoKATP), nitric oxide (NO) release, and its anti-apoptotic effects against I/R injury in an isolated rat heart model. Sixty-three rats were randomly allocated to one of nine groups. OT was perfused 40 min prior to the regional ischemia or 15 min at the early reperfusion phase. AG490 (a JAK/STAT3 inhibitor), 5HD (a mitoKATP blocker), atosiban (an OT receptor antagonist), L-NAME (a nonspecific nitric oxide synthase inhibitor) were applied either alone or in combination with OT during the pre-ischemia phase and/or in the early reperfusion phase. Myocardial infarct size, hemodynamic factor, ventricular arrhythmia, coronary flow, cardiac biochemical marker, and the apoptosis index were determined at the end of reperfusion. Oxytocin postconditioning reduced infarct size, lactate dehydrogenase activity, arrhythmia score, ventricular fibrillation, and apoptosis. Moreover, AG490, 5HD, atosiban, and L-NAME abrogated the cardioprotective effects of OT. Our results demonstrated that the cardioprotective effects of OT are mediated by NO release, and the activation of mitoKATP and the SAFE pathway through the JAK/STAT3 signaling cascade that finally lead to decrease in the apoptosis index during the early reperfusion phase.
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Affiliation(s)
- Mirali Polshekan
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Student Research Committee, Department of Modern Science and Technology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Khori
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Ali Mohammad Alizadeh
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran; Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Ghayour-Mobarhan
- Metabolic Syndrome Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Saeidi
- Stem cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Yahya Jand
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Maryam Rajaei
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Gholamreza Farnoosh
- Applied Biotechnology Research Centre, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Khadijeh Jamialahmadi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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7
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Khori V, Alizadeh AM, Khalighfard S, Heidarian Y, Khodayari H. Oxytocin effects on the inhibition of the NF-κB/miR195 pathway in mice breast cancer. Peptides 2018; 107:54-60. [PMID: 30076862 DOI: 10.1016/j.peptides.2018.07.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 07/25/2018] [Accepted: 07/28/2018] [Indexed: 12/20/2022]
Abstract
Oxytocin (OT) has the suppressive effects on breast tumor formation and development. We hypothesized that OT through the NF-κB inhibition can induce the miR-195 up-regulation which it can promote the cell apoptosis and inhibit the cell proliferation. Thirty-two BALB/c female mice were equally divided into four groups to study the effects of OT and atosiban (ATO) (an oxytocin receptor antagonist) on the mammary tumor growth. The animal weight, OT plasma concentration, and the tumor weight and volume were measured. Moreover, the tumor-related signaling pathways including NF-κB, miR-195, and Cyclin D1 were evaluated by qPCR assays, and Akt and ERK proteins were assessed by western blot at the end of the study. The volume and weight of tumors were significantly decreased after OT administration. The phosphorylated Akt and ERK expressions were significantly decreased in the OT group compared to the tumor group. In contrast, the dephosphorylated Akt and ERK expressions were significantly increased in the OT group in comparison with the tumor group. The mRNA expressions of miR-195, OTR, and Bax genes were significantly increased, and the mRNA expression of ERα, PI3K, NF-κB, cyclin D1 and Bcl-2 genes were decreased in the OT group in comparison with the tumor group. Interestingly, ATO administration reversed these effects. These results can exhibit a new therapeutic potential for OT on the down-regulation of the NF-κB and up-regulation of miR-195 and consequently, decrease of the tumor volume and weight in a mouse model of breast cancer.
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Affiliation(s)
- Vahid Khori
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Ali Mohammad Alizadeh
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran; Women Disease Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Solmaz Khalighfard
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran; Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Hamid Khodayari
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
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8
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Aslan M, Erkanli Senturk G, Akkaya H, Sahin S, Yılmaz B. The effect of oxytocin and Kisspeptin-10 in ovary and uterus of ischemia-reperfusion injured rats. Taiwan J Obstet Gynecol 2018; 56:456-462. [PMID: 28805600 DOI: 10.1016/j.tjog.2016.12.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2016] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE Ischemia/reperfusion (I/R) injuries result in damage to endothelial and parenchymal cells. Oxytocin (OXY) stimulates uterine contraction during parturition and myoepithelial cells during suckling. OXY has been used as a protective antioxidant. Kisspeptin plays a key role in the central control of reproductive functions and onset of puberty. Recent studies show that these reproductive hormones have protective potential as antioxidant. The aim of this study is to investigate the potential protective effects of Kisspeptin and OXY as antioxidants on I/R injured ovary and uterus of female rats. MATERIALS AND METHODS Rats were separated into five groups. Group 1, is control group; Group 2, rats were subjected to ischemia followed by reperfusion. Group 3, OXY administration 30 min prior to I/R applied rats; Group 4, Kisspeptin administration 30 min prior to I/R applied rats; Group 5, OXY and Kisspeptin administration 30 min prior to I/R. Ovary and uterus were removed for histopathological and biochemical observations. Malondialdehyde, glutathione levels, and superoxide dismutase activities were analyzed in order to observe antioxidant potential of OXY and Kisspeptin. Hematoxylin and Eosin staining was applied for histopathologic scoring. RESULTS Stromal and granulosa cells in ovary, endometrial cells in uterus were damaged in I/R group. The cellular damage of ovary and uterus were reduced in OXY and Kisspeptin administered I/R group when compared to only Kisspeptin injected I/R group and I/R group. There is no significant difference between OXY and OXY + Kisspeptin injected I/R groups. MDA levels were decreased in Kisspeptin and/or Oxytocin applied I/R group compared to I/R group. SOD activity and GSH levels were increased in Kisspeptin and/or OXY applied I/R group compared to I/R group. CONCLUSIONS The present results suggest that exogenous application of oxytocin and kisspeptin can have antioxidant effects on the uterus and ovary.
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Affiliation(s)
- M Aslan
- Bahcesehir University, School of Medicine, Istanbul, Turkey
| | - G Erkanli Senturk
- Bahcesehir University, School of Medicine, Department of Histology and Embryology, Goztepe, Istanbul, Turkey.
| | - H Akkaya
- Yeditepe University, School of Medicine, Experimental Research Center, Kayisdagi, Istanbul, Turkey
| | - S Sahin
- Istanbul Medeniyet University, Goztepe Research and Education Hospital, Department of Obstetrics and Gynecology, Goztepe, Istanbul, Turkey
| | - B Yılmaz
- Yeditepe University, School of Medicine, Department of Physiology, Kayisdagi, Istanbul, Turkey
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9
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Alizadeh AM, Heydari Z, Rahimi M, Bazgir B, Shirvani H, Alipour S, Heidarian Y, Khalighfard S, Isanejad A. Oxytocin mediates the beneficial effects of the exercise training on breast cancer. Exp Physiol 2017; 103:222-235. [PMID: 29143998 DOI: 10.1113/ep086463] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 11/13/2017] [Indexed: 12/13/2022]
Abstract
NEW FINDINGS What is the central question of this study? We hypothesized that potential anti-tumour effects of exercise training might be mediated by oxytocin and explored the underlying mechanisms in a mouse model of breast cancer. What is the main finding and its importance? Interval exercise training, by inducing oxytocin secretion, may reduce the activity of the PI3K/Akt and ERK pathways, and consequently, results in a smaller tumour volume in a mouse model of breast cancer. Exercise training can affect the growth of breast tumours. We hypothesized that exercise training might reduce breast tumour growth by inducing oxytocin (OT) secretion and its related signalling pathways, such as PI3K/Akt and ERK. Therefore, 56 BALB/c mice were equally divided into seven groups to study the effects of OT and atosiban (an oxytocin receptor antagonist) together with interval exercise training on mammary tumour growth, as well as tumour-related signalling pathways, including PI3K/Akt and ERK. Animal weight, OT plasma concentration, tumour weight and volume were measured at the end of the study. PI3K/Akt and ERK were evaluated by Western blot and qPCR assays. The results showed that OT plasma concentration was significantly increased in trained animals. The volume and weight of tumours were decreased significantly after both exercise training and OT administration. The expression of genes involved in tumour cell proliferation, such as PI3KR2, Akt and mTOR, was notably lower in the exercise-trained and OT-treated groups. Furthermore, the expression of genes involved in cell apoptosis, such as caspase-3 and Bax, was significantly increased in the tumour tissues. In addition, Western blot results showed that phosphorylated Akt and ERK were significantly decreased in the exercise training and OT groups compared with the tumour group. Interestingly, atosiban reversed these effects. These results indicated that interval exercise training, acting via OT secretion, may reduce PI3K/Akt and ERK axis activities, and consequently, decrease tumour volume and weight in a mouse model of breast cancer.
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Affiliation(s)
- Ali Mohammad Alizadeh
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Breast Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Heydari
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Rahimi
- Department of Physical Education and Sport Sciences, University of Shahrekord, Shahrekord, Iran
| | - Behzad Bazgir
- Exercise Physiology Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hossein Shirvani
- Exercise Physiology Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Sadaf Alipour
- Breast Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Yassaman Heidarian
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Solmaz Khalighfard
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Amin Isanejad
- Immunoregulation Research Center, Shahed University, Tehran, Iran.,Department of Physical Education and Sport Sciences, Shahed University, Tehran, Iran
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10
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Polshekan M, Jamialahmadi K, Khori V, Alizadeh AM, Saeidi M, Ghayour-Mobarhan M, Jand Y, Ghahremani MH, Yazdani Y. RISK pathway is involved in oxytocin postconditioning in isolated rat heart. Peptides 2016; 86:55-62. [PMID: 27717750 DOI: 10.1016/j.peptides.2016.10.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 09/26/2016] [Accepted: 10/01/2016] [Indexed: 12/11/2022]
Abstract
The reperfusion injury salvage kinase (RISK) pathway is a fundamental signal transduction cascade in the cardioprotective mechanism of ischemic postconditioning. In the present study, we examined the cardioprotective role of oxytocin as a postconditioning agent via activation of the RISK pathway (PI3K/Akt and ERK1/2). Animals were randomly divided into 6 groups. The hearts were subjected under 30minutes (min) ischemia and 100min reperfusion. OT was perfused 15min at the early phase of reperfusion. RISK pathway inhibitors (Wortmannin; an Akt inhibitor, PD98059; an ERK1/2 inhibitor) and Atosiban (an OT receptor antagonist) were applied either alone 10min before the onset of the ischemia or in the combination with OT during early reperfusion phase. Myocardial infarct size, hemodynamic factors, ventricular arrhythmia, coronary flow and cardiac biochemical marker were measured at the end of reperfusion. OT postconditioning (OTpost), significantly decreased the infarct size, arrhythmia score, incidence of ventricular fibrillation, Lactate dehydrogenase and it increased coronary flow. The cardioprotective effect of OTpos was abrogated by PI3K/Akt, ERK1/2 inhibitors and Atosiban. Our data have shown that OTpost can activate RISK pathway mostly via the PI3K/Akt and ERK1/2 signaling cascades during the early phase of reperfusion.
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Affiliation(s)
- Mirali Polshekan
- Student Research Committee, Department of Modern Science and Technology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kadijeh Jamialahmadi
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Khori
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | | | - Mohsen Saeidi
- Stem cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Majid Ghayour-Mobarhan
- Biochemistry of Nutrition Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Yahya Jand
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mohammad Hossein Ghahremani
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Yaghoub Yazdani
- Infectious Diseases Research Center and Laboratory Science Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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11
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Bagheri F, Khori V, Alizadeh AM, Khalighfard S, Khodayari S, Khodayari H. Reactive oxygen species-mediated cardiac-reperfusion injury: Mechanisms and therapies. Life Sci 2016; 165:43-55. [DOI: 10.1016/j.lfs.2016.09.013] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 09/13/2016] [Accepted: 09/20/2016] [Indexed: 12/20/2022]
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12
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Jankowski M, Broderick TL, Gutkowska J. Oxytocin and cardioprotection in diabetes and obesity. BMC Endocr Disord 2016; 16:34. [PMID: 27268060 PMCID: PMC4895973 DOI: 10.1186/s12902-016-0110-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 05/18/2016] [Indexed: 12/15/2022] Open
Abstract
Oxytocin (OT) emerges as a drug for the treatment of diabetes and obesity. The entire OT system is synthesized in the rat and human heart. The direct myocardial infusion with OT into an ischemic or failing heart has the potential to elicit a variety of cardioprotective effects. OT treatment attenuates cardiomyocyte (CMs) death induced by ischemia-reperfusion by activating pro-survival pathways within injured CMs in vivo and in isolated cells. OT treatment reduces cardiac apoptosis, fibrosis, and hypertrophy. The OT/OT receptor (OTR) system is downregulated in the db/db mouse model of type 2 diabetes which develops genetic diabetic cardiomyopathy (DC) similar to human disease. We have shown that chronic OT treatment prevents the development of DC in the db/db mouse. In addition, OT stimulates glucose uptake in both cardiac stem cells and CMs, and increases cell resistance to diabetic conditions. OT may help replace lost CMs by stimulating the in situ differentiation of cardiac stem cells into functional mature CMs. Lastly, adult stem cells amenable for transplantation such as MSCs could be preconditioned with OT ex vivo and implanted into the injured heart to aid in tissue regeneration through direct differentiation, secretion of protective and cardiomyogenic factors and/or their fusion with injured CMs.
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Affiliation(s)
- Marek Jankowski
- Cardiovascular Biochemistry Laboratory, CRCHUM (7-134), Tour Viger, 900 St-Denis St., Montreal, Quebec, H2X 0A9, Canada.
- Department of Medicine, Faculty of Medicine, University of Montreal, Montreal, Canada.
| | - Tom L Broderick
- Department of Physiology, Laboratory of Diabetes and Exercise Metabolism, Midwestern University, Agave Hall, office 217-B, 19555 North 59th Avenue, Glendale, AZ, 85308, USA.
| | - Jolanta Gutkowska
- Cardiovascular Biochemistry Laboratory, CRCHUM (7-134), Tour Viger, 900 St-Denis St., Montreal, Quebec, H2X 0A9, Canada
- Department of Medicine, Faculty of Medicine, University of Montreal, Montreal, Canada
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13
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Farhanji B, Latifpour M, Alizadeh AM, Khodayari H, Khodayari S, Khaniki M, Ghasempour S. Tumor suppression effects of myoepithelial cells on mice breast cancer. Eur J Pharmacol 2015; 765:171-8. [PMID: 26297304 DOI: 10.1016/j.ejphar.2015.08.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 08/12/2015] [Accepted: 08/17/2015] [Indexed: 01/20/2023]
Abstract
Several studies have assumed that myoepithelial cells (MECs) loss may contribute to epithelial tumor induction and/or progression. We adopted an in vitro assay and a syngeneic mice breast cancer model with histological and molecular characteristics resembling human lesions to evaluate tumor suppression effects of MECs. Flow cytometric, cell viability, blood chemistry, transmission electron microscope, immunohistochemistry and qRT-PCR assays were performed at the end of the study. We demonstrated that MECs could significantly suppress the viability of cancer cells at different time points (P<0.05). At the end of the fourth and fifth weeks, treated mice had smaller tumor volume compared with control animals. Average tumor volume was significantly less in treated groups than control group at days 21 (0.38±0.19 vs. 1.99±0.13 cm3), 28 (0.57±0.3 vs. 2.5±0.37 cm3) and 35 (0.7±0.35 vs. 2.65±0.4 cm3) after tumor cell injection (P<0.05). No hematological, hepatocellular, and renal toxicities were seen in MECs treated groups. Ultrastructural features revealed severe relationship between adjacent tumoral cells and loose interconnections of neoplastic cells in treated group. Immunohistochemical examinations of breast tumors showed high p63 and low alpha-smooth muscle actin protein expression in treated mice compared to control (P<0.05). MRNA expressions of TNF-α, smooth muscle-myosin heavy chain, connexin 43, and maspin were significantly up-regulated in breast tumor tissues in treated group compared to control (P<0.05). VEGF and alpha-smooth muscle actin mRNA expression were reduced in treated animals (P<0.05). The present study highlighted the potential tumor suppression effects of MECs on breast cancer in a typical animal model.
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Affiliation(s)
- Baharak Farhanji
- Iranian Tissue Bank & Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Latifpour
- Cancer Research Center, Tehran University of Medical Sciences, 1419733141 Tehran, Iran
| | - Ali Mohammad Alizadeh
- Cancer Research Center, Tehran University of Medical Sciences, 1419733141 Tehran, Iran.
| | - Hamid Khodayari
- Cancer Research Center, Tehran University of Medical Sciences, 1419733141 Tehran, Iran
| | - Saeed Khodayari
- Cancer Research Center, Tehran University of Medical Sciences, 1419733141 Tehran, Iran; Department of Pharmacology, Fasa University of Medical Sciences, Fasa, Iran
| | - Mahmood Khaniki
- Pathology Department, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sarieh Ghasempour
- Cancer Research Center, Tehran University of Medical Sciences, 1419733141 Tehran, Iran
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14
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Yildirim N, Yigitturk G, Sahingoz Yildirim AG, Akdemir A, İlgen O, Yeniel O, Ergenoglu M, Erbas O. Octreotide protects ovary against ischemia-reperfusion injury in rats: Evaluation of histological and biochemical parameters. J Obstet Gynaecol Res 2015. [DOI: 10.1111/jog.12770] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Nuri Yildirim
- Department of Obstetrics and Gynecology; Ege University; Izmir Turkey
| | - Gurkan Yigitturk
- Department of Histology and Embryology; Ege University; Izmir Turkey
| | | | - Ali Akdemir
- Department of Obstetrics and Gynecology; Ege University; Izmir Turkey
| | - Orkun İlgen
- Department of Obstetrics and Gynecology; Ege University; Izmir Turkey
| | - Ozgur Yeniel
- Department of Obstetrics and Gynecology; Ege University; Izmir Turkey
| | - Mete Ergenoglu
- Department of Obstetrics and Gynecology; Ege University; Izmir Turkey
| | - Oytun Erbas
- Department of Physiology; Bilim University; Istanbul Turkey
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15
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Dal Lin C, Tona F, Osto E. Coronary Microvascular Function and Beyond: The Crosstalk between Hormones, Cytokines, and Neurotransmitters. Int J Endocrinol 2015; 2015:312848. [PMID: 26124827 PMCID: PMC4466475 DOI: 10.1155/2015/312848] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/10/2015] [Accepted: 03/16/2015] [Indexed: 01/18/2023] Open
Abstract
Beyond its hemodynamic function, the heart also acts as a neuroendocrine and immunoregulatory organ. A dynamic communication between the heart and other organs takes place constantly to maintain cardiovascular homeostasis. The current understanding highlights the importance of the endocrine, immune, and nervous factors to fine-tune the crosstalk of the cardiovascular system with the entire body. Once disrupted, this complex interorgan communication may promote the onset and the progression of cardiovascular diseases. Thus, expanding our knowledge on how these factors influence the cardiovascular system can lead to novel therapeutic strategies to improve patient care. In the present paper, we review novel concepts on the role of endocrine, immune, and nervous factors in the modulation of microvascular coronary function.
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Affiliation(s)
- Carlo Dal Lin
- Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Via Giustiniani 2, 35100 Padua, Italy
| | - Francesco Tona
- Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Via Giustiniani 2, 35100 Padua, Italy
| | - Elena Osto
- Centre for Molecular Cardiology, University of Zurich and University Heart Center, Department of Cardiology, University Hospital, Raemistrasse 100, 8091 Zurich, Switzerland
- *Elena Osto:
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16
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Mozziconacci O, Schöneich C. Effect of Conformation on the Photodegradation of Trp- And Cystine-Containing Cyclic Peptides: Octreotide and Somatostatin. Mol Pharm 2014; 11:3537-46. [DOI: 10.1021/mp5003174] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Olivier Mozziconacci
- Department of Pharmaceutical
Chemistry, University of Kansas, 2095 Constant Avenue, Lawrence, Kansas 66047, United States
| | - Christian Schöneich
- Department of Pharmaceutical
Chemistry, University of Kansas, 2095 Constant Avenue, Lawrence, Kansas 66047, United States
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17
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Spontaneous coronary artery dissection in a parturient with Nail-Patella syndrome. Int J Obstet Anesth 2014; 24:69-73. [PMID: 25433575 DOI: 10.1016/j.ijoa.2014.07.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 07/21/2014] [Accepted: 07/22/2014] [Indexed: 01/25/2023]
Abstract
Spontaneous coronary artery dissection is an uncommon cause of acute coronary syndrome, occurring predominantly in women during and immediately after pregnancy; it carries a mortality rate of greater than 50%. While the exact etiology is unknown, possible contributing factors include pregnancy-related hormonal, connective tissue and hemodynamic changes. We present a case of a 35-year-old multigravid woman with Nail-Patella syndrome who developed an acute myocardial infarction secondary to spontaneous coronary artery dissection during labor which was not diagnosed until after delivery. We hypothesize that abnormal collagen fiber formation found in Nail-Patella syndrome may have put her at an increased risk of coronary dissection and myocardial infarction. Regardless of etiology, a delay in diagnosis of myocardial ischemia can lead to significant morbidity and mortality. In light of the increasing burden of cardiac disease in the obstetric population, clinicians should remain vigilant for signs of myocardial infarction and prepare for definitive diagnosis and treatment.
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18
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Kardeh S, Ashkani-Esfahani S, Alizadeh AM. Paradoxical action of reactive oxygen species in creation and therapy of cancer. Eur J Pharmacol 2014; 735:150-68. [DOI: 10.1016/j.ejphar.2014.04.023] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Revised: 04/04/2014] [Accepted: 04/09/2014] [Indexed: 02/07/2023]
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Akdemir A, Erbas O, Gode F, Ergenoglu M, Yeniel O, Oltulu F, Yavasoglu A, Taskiran D. Protective effect of oxytocin on ovarian ischemia-reperfusion injury in rats. Peptides 2014; 55:126-30. [PMID: 24630974 DOI: 10.1016/j.peptides.2014.02.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 01/14/2023]
Abstract
Oxytocin (OT), a neurohypophysial nonapeptide, plays dual role as a neurotransmitter/neuromodulator and a hormone. It has also well known protective properties against ischemia/reperfusion organ damage. This study investigated the effect of OT on experimentally induced ovarian torsion/de-torsion ischemia/reperfusion (I/R) injury in rats. Sprague-Dawley rats were assigned to five treatment groups (n=7/group): Group 1, sham-operated; Group 2, torsion; Group 3, 80 IU/kg of OT administration 30 min prior to torsion; Group 4, torsion/de-torsion; and Group 5, torsion followed by 80 IU/kg of OT administration 30 min prior to de-torsion. OT administration significantly decreased the tissue malondialdehyde (MDA) levels in both the torsion and OT group (Group 3), and torsion/de-torsion OT group (Group 5) in comparison with the torsion-only group (Group 2) and torsion/de-torsion group (Group 4). Histopathological finding scores including follicular degeneration, edema, hemorrhage, vascular congestion, and infiltration by inflammatory cells were found to be significantly decreased in the torsion and OT group (Group 3), and torsion/de-torsion OT group (Group 5) when compared with the torsion-only group (Group 2) and torsion/de-torsion group (Group 4). In conclusion, these results, verified with histopathologic evaluation and biochemical assays, suggest a probable protective role for OT in ischemia and I/R injury in rat ovaries.
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Affiliation(s)
- Ali Akdemir
- Department of Obstetrics and Gynecology, Ege University School of Medicine, Izmir, Turkey
| | - Oytun Erbas
- Department of Physiology, Ege University School of Medicine, Izmir, Turkey
| | - Funda Gode
- Department of Obstetrics and Gynecology, Kent Hospital, Izmir, Turkey.
| | - Mete Ergenoglu
- Department of Obstetrics and Gynecology, Ege University School of Medicine, Izmir, Turkey
| | - Ozgur Yeniel
- Department of Obstetrics and Gynecology, Ege University School of Medicine, Izmir, Turkey
| | - Fatih Oltulu
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey
| | - Altug Yavasoglu
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey
| | - Dilek Taskiran
- Department of Physiology, Ege University School of Medicine, Izmir, Turkey
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20
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Wsol A, Szczepanska-Sadowska E, Kowalewski S, Puchalska L, Cudnoch-Jedrzejewska A. Oxytocin differently regulates pressor responses to stress in WKY and SHR rats: the role of central oxytocin and V1a receptors. Stress 2014; 17:117-25. [PMID: 24308490 DOI: 10.3109/10253890.2013.872620] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The role of central oxytocin in the regulation of cardiovascular parameters under resting conditions and during acute stress was investigated in male normotensive Wistar-Kyoto (WKY; n = 40) and spontaneously hypertensive rats (SHR; n = 28). In Experiment 1, mean arterial blood pressure (MABP) and heart rate (HR) were recorded in WKY and SHR rats at rest and after an air-jet stressor during intracerebroventricular (ICV) infusions of vehicle, oxytocin or oxytocin receptor (OTR) antagonist. In Experiment 2, the effects of vehicle, oxytocin and OTR antagonist were determined in WKY rats after prior administration of a V1a vasopressin receptor (V1aR) antagonist. Resting MABP and HR were not affected by any of the ICV infusions either in WKY or in SHR rats. In control experiments (vehicle), the pressor response to stress was significantly higher in SHR. Oxytocin enhanced the pressor response to stress in the WKY rats but reduced it in SHR. During V1aR blockade, oxytocin infusion entirely abolished the pressor response to stress in WKY rats. Combined blockade of V1aR and OTR elicited a significantly greater MABP response to stress than infusion of V1a antagonist and vehicle. This study reveals significant differences in the regulation of blood pressure in WKY and SHR rats during alarming stress. Specifically, the augmentation of the pressor response to stress by exogenous oxytocin in WKY rats is caused by its interaction with V1aR, and endogenous oxytocin regulates the magnitude of the pressor response to stress in WKY rats by simultaneous interaction with OTR and V1aR.
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Affiliation(s)
- A Wsol
- Department of Experimental and Clinical Physiology, Medical University of Warsaw , Warsaw , Poland
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