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Simmons SR, Herring SE, Tchalla EYI, Lenhard AP, Bhalla M, Bou Ghanem EN. Activating A1 adenosine receptor signaling boosts early pulmonary neutrophil recruitment in aged mice in response to Streptococcus pneumoniae infection. Immun Ageing 2024; 21:34. [PMID: 38840213 PMCID: PMC11151497 DOI: 10.1186/s12979-024-00442-3] [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: 04/10/2024] [Accepted: 05/29/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Streptococcus pneumoniae (pneumococcus) is a leading cause of pneumonia in older adults. Successful control of pneumococci requires robust pulmonary neutrophil influx early in infection. However, aging is associated with aberrant neutrophil recruitment and the mechanisms behind that are not understood. Here we explored how neutrophil recruitment following pneumococcal infection changes with age and the host pathways regulating this. RESULTS Following pneumococcal infection there was a significant delay in early neutrophil recruitment to the lungs of aged mice. Neutrophils from aged mice showed defects in trans-endothelial migration in vitro compared to young controls. To understand the pathways involved, we examined immune modulatory extracellular adenosine (EAD) signaling, that is activated upon cellular damage. Signaling through the lower affinity A2A and A2B adenosine receptors had no effect on neutrophil recruitment to infected lungs. In contrast, inhibition of the high affinity A1 receptor in young mice blunted neutrophil recruitment to the lungs following infection. A1 receptor inhibition decreased expression of CXCR2 on circulating neutrophils, which is required for trans-endothelial migration. Indeed, A1 receptor signaling on neutrophils was required for their ability to migrate across endothelial cells in response to infection. Aging was not associated with defects in EAD production or receptor expression on neutrophils. However, agonism of A1 receptor in aged mice rescued the early defect in neutrophil migration to the lungs and improved control of bacterial burden. CONCLUSIONS This study suggests age-driven defects in EAD damage signaling can be targeted to rescue the delay in pulmonary neutrophil migration in response to bacterial pneumonia.
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Affiliation(s)
- Shaunna R Simmons
- Department of Microbiology and Immunology, School of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Sydney E Herring
- Department of Microbiology and Immunology, School of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Essi Y I Tchalla
- Department of Microbiology and Immunology, School of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Alexsandra P Lenhard
- Department of Microbiology and Immunology, School of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Manmeet Bhalla
- Department of Microbiology and Immunology, School of Medicine, University at Buffalo, Buffalo, NY, USA
| | - Elsa N Bou Ghanem
- Department of Microbiology and Immunology, School of Medicine, University at Buffalo, Buffalo, NY, USA.
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2
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Simmons SR, Herring SE, Tchalla EYI, Lenhard AP, Bhalla M, Bou Ghanem EN. Activating A1 adenosine receptor signaling boosts early pulmonary neutrophil recruitment in aged mice in response to Streptococcus pneumoniae infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.08.574741. [PMID: 38260350 PMCID: PMC10802397 DOI: 10.1101/2024.01.08.574741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Background Streptococcus pneumoniae (pneumococcus) is a leading cause of pneumonia in older adults. Successful control of pneumococci requires robust pulmonary neutrophil influx early in infection. However, aging is associated with aberrant neutrophil recruitment and the mechanisms behind that are not understood. Here we explored how neutrophil recruitment following pneumococcal infection changes with age and the host pathways regulating this. Results Following pneumococcal infection there was a significant delay in early neutrophil recruitment to the lungs of aged mice. Neutrophils from aged mice showed defects in trans-endothelial migration in vitro compared to young controls. To understand the pathways involved, we examined immune modulatory extracellular adenosine (EAD) signaling, that is activated upon cellular damage. Signaling through the lower affinity A2A and A2B adenosine receptors had no effect on neutrophil recruitment to infected lungs. In contrast, inhibition of the high affinity A1 receptor in young mice blunted neutrophil recruitment to the lungs following infection. A1 receptor inhibition decreased expression of CXCR2 on circulating neutrophils, which is required for transendothelial migration. Indeed, A1 receptor signaling on neutrophils was required for their ability to migrate across endothelial cells in response to infection. Aging was not associated with defects in EAD production or receptor expression on neutrophils. However, agonism of A1 receptor in aged mice rescued the early defect in neutrophil migration to the lungs and improved control of bacterial burden. Conclusions This study suggests age-driven defects in EAD damage signaling can be targeted to rescue the delay in pulmonary neutrophil migration in response to bacterial pneumonia.
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3
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Zhu W, Hong Y, Tong Z, He X, Li Y, Wang H, Gao X, Song P, Zhang X, Wu X, Tan Z, Huang W, Liu Z, Bao Y, Ma J, Zheng N, Xie C, Ke X, Zhou W, Jia W, Li M, Zhong J, Sheng L, Li H. Activation of hepatic adenosine A1 receptor ameliorates MASH via inhibiting SREBPs maturation. Cell Rep Med 2024; 5:101477. [PMID: 38508143 PMCID: PMC10983109 DOI: 10.1016/j.xcrm.2024.101477] [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: 06/26/2023] [Revised: 12/10/2023] [Accepted: 02/21/2024] [Indexed: 03/22/2024]
Abstract
Metabolic (dysfunction)-associated steatohepatitis (MASH) is the advanced stage of metabolic (dysfunction)-associated fatty liver disease (MAFLD) lacking approved clinical drugs. Adenosine A1 receptor (A1R), belonging to the G-protein-coupled receptors (GPCRs) superfamily, is mainly distributed in the central nervous system and major peripheral organs with wide-ranging physiological functions; however, the exact role of hepatic A1R in MAFLD remains unclear. Here, we report that liver-specific depletion of A1R aggravates while overexpression attenuates diet-induced metabolic-associated fatty liver (MAFL)/MASH in mice. Mechanistically, activation of hepatic A1R promotes the competitive binding of sterol-regulatory element binding protein (SREBP) cleavage-activating protein (SCAP) to sequestosome 1 (SQSTM1), rather than protein kinase A (PKA) leading to SCAP degradation in lysosomes. Reduced SCAP hinders SREBP1c/2 maturation and thus suppresses de novo lipogenesis and inflammation. Higher hepatic A1R expression is observed in patients with MAFL/MASH and high-fat diet (HFD)-fed mice, which is supposed to be a physiologically adaptive response because A1R agonists attenuate MAFL/MASH in an A1R-dependent manner. These results highlight that hepatic A1R is a potential target for MAFL/MASH therapy.
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Affiliation(s)
- Weize Zhu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ying Hong
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhaowei Tong
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xiaofang He
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yan Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hao Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xinxin Gao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Pengtao Song
- Department of Pathology, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xianshan Zhang
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xiaochang Wu
- Department of Hepatobiliary Surgery, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Zhenhua Tan
- Department of Hepatobiliary Surgery, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Wenjin Huang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zekun Liu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yiyang Bao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Junli Ma
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ningning Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Cen Xie
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xisong Ke
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wen Zhou
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural, Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Wei Jia
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China
| | - Mingxiao Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Jing Zhong
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China.
| | - Lili Sheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Houkai Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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Chacon-Alberty L, Fernandez R, Jindra P, King M, Rosas I, Hochman-Mendez C, Loor G. Primary Graft Dysfunction in Lung Transplantation: A Review of Mechanisms and Future Applications. Transplantation 2023; 107:1687-1697. [PMID: 36650643 DOI: 10.1097/tp.0000000000004503] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Lung allograft recipients have worse survival than all other solid organ transplant recipients, largely because of primary graft dysfunction (PGD), a major form of acute lung injury affecting a third of lung recipients within the first 72 h after transplant. PGD is the clinical manifestation of ischemia-reperfusion injury and represents the predominate cause of early morbidity and mortality. Despite PGD's impact on lung transplant outcomes, no targeted therapies are currently available; hence, care remains supportive and largely ineffective. This review focuses on molecular and innate immune mechanisms of ischemia-reperfusion injury leading to PGD. We also discuss novel research aimed at discovering biomarkers that could better predict PGD and potential targeted interventions that may improve outcomes in lung transplantation.
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Affiliation(s)
| | - Ramiro Fernandez
- Division of Cardiothoracic Transplantation and Mechanical Circulatory Support, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX
| | - Peter Jindra
- Division of Cardiothoracic Transplantation and Mechanical Circulatory Support, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX
| | - Madelyn King
- Department of Regenerative Medicine Research, Texas Heart Institute, Houston, TX
| | - Ivan Rosas
- Department of Medicine, Baylor College of Medicine, Houston, TX
| | | | - Gabriel Loor
- Division of Cardiothoracic Transplantation and Mechanical Circulatory Support, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX
- Cardiothoracic Surgery Professional Staff, The Texas Heart Institute, Houston, TX
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5
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The role of adenosine A 1 receptor on immune cells. Inflamm Res 2022; 71:1203-1212. [PMID: 36064866 DOI: 10.1007/s00011-022-01607-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/27/2022] [Accepted: 06/29/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Adenosine, acting as a regulator by mediating the activation of G protein-coupled adenosine receptor families (A1, A2A, A2B, and A3), plays an important role under physiological and pathological conditions. As the receptor with the highest affinity for adenosine, the role of adenosine A1 receptor (A1R)-mediated adenosine signaling pathway in the central nervous system has been well addressed. However, functions of A1R on immune cells are less summarized. Considering that some immune cells express multiple types of adenosine receptors with distinct effects and varied density, exogenous adenosine of different concentrations may induce divergent immune cell functions. MATERIALS AND METHODS The literatures about the expression of A1R and its regulation on immune cells and how it regulates the function of immune cells were searched on PubMed and Google Scholar. CONCLUSION In this review, we discussed the effects of A1R on immune cells, including monocytes, macrophages, neutrophils, dendritic cells, and microglia, and focused on the role of A1R in regulating immune cells in diseases, which may facilitate our understanding of the mechanisms by which adenosine affects immune cells through A1R.
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Jia L, Cui W, Chen J, Yang J, Xue X, Cai J, Zhao W, Gao W. Erythropoietin alleviates acute lung injury induced by ischemia-reperfusion through blocking p38 MAPK signaling. Hum Exp Toxicol 2021; 40:S593-S602. [PMID: 34784828 DOI: 10.1177/09603271211043480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Erythropoietin (EPO) has antiapoptotic, antioxidative, and anti-inflammatory effects on ischemia tissues and protects against acute lung injury (ALI) induced by ischemia-reperfusion (I/R). p38 mitogen-activated protein kinases (p38 MAPK) signaling is involved in the processes of I/R-induced ALI. However, the interaction of EPO with p38 MAPK signaling in I/R-induced ALI has not been reported. To explore this issue, we constructed an I/R-induced ALI model in vivo and in vitro using Sprague Dawley rats and BEAS-2B cells. Some I/R rats and hypoxia-reoxygenation (H/R)-induced cells were treated with EPO, and the others were used as control groups. The injuries of lung tissues and cells were respectively assessed by inflammatory cytokine, morphologic changes, cell viability, apoptosis, and oxidative damage-related factors. Western blot determined key proteins in the p38 MAPK signaling. Results indicated that I/R induced the increase of inflammatory factors, lung weight, filtration coefficient, bronchoalveolar lavage fluid protein content, apoptosis, neutrophil, and lung peroxidation, and H/R caused cell growth inhibition, apoptosis, and oxidative damage-related factors' release. EPO attenuated I/R-induced injury in vivo and in vitro. Furthermore, the increase of p-p38, p-JNK, and p-ERK1/2 in lung tissues and cells induced by I/R was downregulated by EPO. Moreover, both EPO and an inhibitor of p38 MAPK (SB203580) alleviated H/R-induced cell injury. Erythropoietin along with SB203580 had more obvious protection effects than EPO alone. Collectively, EPO alleviated I/R-induced ALI by blocking p38 MAPK signaling. The interaction mechanism of EPO with p38 MAPK signaling contributes to understanding the processes of I/R-induced ALI and provides new insights for the disease treatment.
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Affiliation(s)
- Ling Jia
- Department of Critical Care Medicine, 572527Sir Run Run Hospital Nanjing Medical University, Nanjing, China
| | - Wenjing Cui
- Department of Radiology, 375808Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jiao Chen
- Department of Critical Care Medicine, 572527Sir Run Run Hospital Nanjing Medical University, Nanjing, China
| | - Jinghui Yang
- Department of Critical Care Medicine, 572527Sir Run Run Hospital Nanjing Medical University, Nanjing, China
| | - Xiang Xue
- Department of Critical Care Medicine, 572527Sir Run Run Hospital Nanjing Medical University, Nanjing, China
| | - Jianqin Cai
- Department of Critical Care Medicine, 572527Sir Run Run Hospital Nanjing Medical University, Nanjing, China
| | - Wei Zhao
- Department of Critical Care Medicine, 572527Sir Run Run Hospital Nanjing Medical University, Nanjing, China
| | - Wei Gao
- Department of Geriatrics, 572527Sir Run Run Hospital, Nanjing Medical University, Nanjing, China
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Garcia-Garcia L, Olle L, Martin M, Roca-Ferrer J, Muñoz-Cano R. Adenosine Signaling in Mast Cells and Allergic Diseases. Int J Mol Sci 2021; 22:ijms22105203. [PMID: 34068999 PMCID: PMC8156042 DOI: 10.3390/ijms22105203] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 02/06/2023] Open
Abstract
Adenosine is a nucleoside involved in the pathogenesis of allergic diseases. Its effects are mediated through its binding to G protein-coupled receptors: A1, A2a, A2b and A3. The receptors differ in the type of G protein they recruit, in the effect on adenylyl cyclase (AC) activity and the downstream signaling pathway triggered. Adenosine can produce both an enhancement and an inhibition of mast cell degranulation, indicating that adenosine effects on these receptors is controversial and remains to be clarified. Depending on the study model, A1, A2b, and A3 receptors have shown anti- or pro-inflammatory activity. However, most studies reported an anti-inflammatory activity of A2a receptor. The precise knowledge of the adenosine mechanism of action may allow to develop more efficient therapies for allergic diseases by using selective agonist and antagonist against specific receptor subtypes.
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Affiliation(s)
- Lucia Garcia-Garcia
- Clinical and Experimental Respiratory Immunoallergy (IRCE), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (L.G.-G.); (L.O.); (M.M.); (J.R.-F.)
| | - Laia Olle
- Clinical and Experimental Respiratory Immunoallergy (IRCE), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (L.G.-G.); (L.O.); (M.M.); (J.R.-F.)
| | - Margarita Martin
- Clinical and Experimental Respiratory Immunoallergy (IRCE), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (L.G.-G.); (L.O.); (M.M.); (J.R.-F.)
- Biochemistry and Molecular Biology Unit, Biomedicine Department, Faculty of Medicine, University of Barcelona, 08036 Barcelona, Spain
- ARADyAL, Instituto de Salud Carlos III, 28220 Madrid, Spain
| | - Jordi Roca-Ferrer
- Clinical and Experimental Respiratory Immunoallergy (IRCE), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (L.G.-G.); (L.O.); (M.M.); (J.R.-F.)
| | - Rosa Muñoz-Cano
- Clinical and Experimental Respiratory Immunoallergy (IRCE), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (L.G.-G.); (L.O.); (M.M.); (J.R.-F.)
- ARADyAL, Instituto de Salud Carlos III, 28220 Madrid, Spain
- Allergy Section, Hospital Clinic, Universitat de Barcelona, 08036 Barcelona, Spain
- Correspondence: ; Tel.: +34-93-2275540
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Yang C, Yang W, He Z, Guo J, Yang X, Wang R, Li H. Kaempferol Alleviates Oxidative Stress and Apoptosis Through Mitochondria-dependent Pathway During Lung Ischemia-Reperfusion Injury. Front Pharmacol 2021; 12:624402. [PMID: 33746757 PMCID: PMC7969663 DOI: 10.3389/fphar.2021.624402] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 01/04/2021] [Indexed: 12/19/2022] Open
Abstract
In previous study, we reported that kaempferol ameliorates significantly lung ischemia-reperfusion injury (LIRI), and may be achieved by targeting the SIRT 1 pathway. This study further explored the anti-LIRI mechanism of kaempferol. In vitro, the rat alveolar epithelial cells L2 was cultured and subjected to anoxia/reoxygenation (A/R) insult. In vivo, SD rats were operated to establish LIRI model. The related indicators of oxidative stress and apoptosis in L2 cells and rats lung tissues were detected. Results showed that kaempferol pre-treatment significantly increased the cell viability, improved mitochondrial membrane potential, inhibited the opening of mitochondrial permeability transition pores, reduced the levels of oxidative stress and apoptosis, increased the expressions of Bcl-2 and mitochondrial cytochrome c, and decreased the expressions of Bax and cytoplasmic cytochrome c in L2 cells after A/R insult. In vivo, kaempferol improved the pathological injury, inhibited the levels of oxidative stress and apoptosis, increased the expressions of Bcl-2 and mitochondrial cytochrome c, and decreased the expressions of Bax and cytoplasmic cytochrome c in rats lung tissues after I/R. However, the aforementioned effects of kaempferol were significantly attenuated by the SIRT 1 inhibitor EX527 or the PGC-1α inhibitor SR-18292. What's more, SR-18292 has not reversed the effect of kaempferol on increasing the protein activity of SIRT 1. Above results suggest that kaempferol ameliorates LIRI by improving mitochondrial function, reducing oxidative stress and inhibiting cell apoptosis. Its molecular mechanism of action includes the SIRT 1/PGC-1α/mitochondria signaling pathway.
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Affiliation(s)
- Chunli Yang
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Wenkai Yang
- Department of Cardiovascular Surgery, Central People's Hospital of Zhanjiang, Zhanjiang, China
| | - Zhaohui He
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Jinghua Guo
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Xiaogang Yang
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Rongsheng Wang
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Hongbo Li
- Department of Orthopedics, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
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Abstract
Because of the high demand of organs, the usage of marginal grafts has increased. These marginal organs have a higher risk of developing ischemia-reperfusion injury, which can lead to posttransplant complications. Ex situ machine perfusion (MP), compared with the traditional static cold storage, may better protect these organs from ischemia-reperfusion injury. In addition, MP can also act as a platform for dynamic administration of pharmacological agents or gene therapy to further improve transplant outcomes. Numerous therapeutic agents have been studied under both hypothermic (1-8°C) and normothermic settings. Here, we review all the therapeutics used during MP in different organ systems (lung, liver, kidney, heart). The major categories of therapeutic agents include vasodilators, mesenchymal stem cells, antiinflammatory agents, antiinfection agents, siRNA, and defatting agents. Numerous animal and clinical studies have examined MP therapeutic agents, some of which have even led to the successful reconditioning of discarded grafts. More clinical studies, especially randomized controlled trials, will need to be conducted in the future to solidify these promising results and to define the role of MP therapeutic agents in solid organ transplantation.
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10
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Jin Z, Suen KC, Wang Z, Ma D. Review 2: Primary graft dysfunction after lung transplant-pathophysiology, clinical considerations and therapeutic targets. J Anesth 2020; 34:729-740. [PMID: 32691226 PMCID: PMC7369472 DOI: 10.1007/s00540-020-02823-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 07/04/2020] [Indexed: 12/13/2022]
Abstract
Primary graft dysfunction (PGD) is one of the most common complications in the early postoperative period and is the most common cause of death in the first postoperative month. The underlying pathophysiology is thought to be the ischaemia–reperfusion injury that occurs during the storage and reperfusion of the lung engraftment; this triggers a cascade of pathological changes, which result in pulmonary vascular dysfunction and loss of the normal alveolar architecture. There are a number of surgical and anaesthetic factors which may be related to the development of PGD. To date, although treatment options for PGD are limited, there are several promising experimental therapeutic targets. In this review, we will discuss the pathophysiology, clinical management and potential therapeutic targets of PGD.
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Affiliation(s)
- Zhaosheng Jin
- Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, SW10 9NH, UK
| | - Ka Chun Suen
- Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, SW10 9NH, UK
| | - Zhiping Wang
- Department of Anesthesiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Daqing Ma
- Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, SW10 9NH, UK.
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11
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Effendi WI, Nagano T, Kobayashi K, Nishimura Y. Focusing on Adenosine Receptors as a Potential Targeted Therapy in Human Diseases. Cells 2020; 9:E785. [PMID: 32213945 PMCID: PMC7140859 DOI: 10.3390/cells9030785] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 02/07/2023] Open
Abstract
Adenosine is involved in a range of physiological and pathological effects through membrane-bound receptors linked to G proteins. There are four subtypes of adenosine receptors, described as A1AR, A2AAR, A2BAR, and A3AR, which are the center of cAMP signal pathway-based drug development. Several types of agonists, partial agonists or antagonists, and allosteric substances have been synthesized from these receptors as new therapeutic drug candidates. Research efforts surrounding A1AR and A2AAR are perhaps the most enticing because of their concentration and affinity; however, as a consequence of distressing conditions, both A2BAR and A3AR levels might accumulate. This review focuses on the biological features of each adenosine receptor as the basis of ligand production and describes clinical studies of adenosine receptor-associated pharmaceuticals in human diseases.
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Affiliation(s)
- Wiwin Is Effendi
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan; (W.I.E.); (K.K.); (Y.N.)
- Department of Pulmonology and Respiratory Medicine, Medical Faculty of Airlangga University, Surabaya 60131, Indonesia
| | - Tatsuya Nagano
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan; (W.I.E.); (K.K.); (Y.N.)
| | - Kazuyuki Kobayashi
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan; (W.I.E.); (K.K.); (Y.N.)
| | - Yoshihiro Nishimura
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan; (W.I.E.); (K.K.); (Y.N.)
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12
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Yang C, Yang W, He Z, He H, Yang X, Lu Y, Li H. Kaempferol Improves Lung Ischemia-Reperfusion Injury via Antiinflammation and Antioxidative Stress Regulated by SIRT1/HMGB1/NF-κB Axis. Front Pharmacol 2020; 10:1635. [PMID: 32116668 PMCID: PMC7025570 DOI: 10.3389/fphar.2019.01635] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/16/2019] [Indexed: 12/24/2022] Open
Abstract
Trauma, organ transplantation, and thromboembolism are the main causes of lung ischemia-reperfusion injury (LIRI), and new therapies and drugs are urgent to relieve LIRI. In preliminary experiment, authors found that kaempferol could improve LIRI in rats, and the current study further explored its possible mechanism. The model of rat LIRI was established and appropriate research methods were implemented. Results shown that kaempferol could significantly improve LIRI, inhibit release of inflammatory factors including interleukin (IL) 6 and tumor necrosis factor (TNF) α in bronchoalveolar lavage fluid, and reduce oxidative stress reaction. Western blotting was used to detect protein expression levels and found that kaempferol could up-regulate the protein expressions of phosphorylated (p-) p65 and p65, and down-regulate the protein expression of sirtuin (SIRT) 1. Immunofluorescence was used to localize the expression of high mobility group box (HMGB) 1 and found its higher expression in outside of nucleus. However, the above effects of kaempferol on LIRI markedly attenuated by EX 527, a selective inhibitor of SIRT 1. Taken together, we first reported the protective effect of kaempferol on rat LIRI and confirmed that kaempferol’s antiinflammation and antioxidative stress involving the SIRT1/HMGB1/NF-κB axis.
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Affiliation(s)
- Chunli Yang
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Wenkai Yang
- Department of Cardiovascular Surgery, Affiliated Central People's Hospital of Zhanjiang of Guangdong Medical University, Zhanjiang, China
| | - Zhaohui He
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Huiwei He
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Xiaogang Yang
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Yuanhua Lu
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Hongbo Li
- Department of Intensive Care, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
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Bhalla M, Hui Yeoh J, Lamneck C, Herring SE, Tchalla EYI, Heinzinger LR, Leong JM, Bou Ghanem EN. A1 adenosine receptor signaling reduces Streptococcus pneumoniae adherence to pulmonary epithelial cells by targeting expression of platelet-activating factor receptor. Cell Microbiol 2019; 22:e13141. [PMID: 31709673 DOI: 10.1111/cmi.13141] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/24/2019] [Accepted: 11/01/2019] [Indexed: 12/11/2022]
Abstract
Extracellular adenosine production is crucial for host resistance against Streptococcus pneumoniae (pneumococcus) and is thought to affect antibacterial immune responses by neutrophils. However, whether extracellular adenosine alters direct host-pathogen interaction remains unexplored. An important determinant for lung infection by S. pneumoniae is its ability to adhere to the pulmonary epithelium. Here we explored whether extracellular adenosine can directly impact bacterial adherence to lung epithelial cells. We found that signaling via A1 adenosine receptor significantly reduced the ability of pneumococci to bind human pulmonary epithelial cells. A1 receptor signaling blocked bacterial binding by reducing the expression of platelet-activating factor receptor, a host protein used by S. pneumoniae to adhere to host cells. In vivo, A1 was required for control of pneumococcal pneumonia as inhibiting it resulted in increased host susceptibility. As S. pneumoniae remain a leading cause of community-acquired pneumonia in the elderly, we explored the role of A1 in the age-driven susceptibility to infection. We found no difference in A1 pulmonary expression in young versus old mice. Strikingly, triggering A1 signaling boosted host resistance of old mice to S. pneumoniae pulmonary infection. This study demonstrates a novel mechanism by which extracellular adenosine modulates resistance to lung infection by targeting bacterial-host interactions.
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Affiliation(s)
- Manmeet Bhalla
- Department of Microbiology and Immunology, State University of New York at Buffalo School of Medicine, Buffalo, New York
| | - Jun Hui Yeoh
- Department of Microbiology and Immunology, State University of New York at Buffalo School of Medicine, Buffalo, New York
| | - Claire Lamneck
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts
| | - Sydney E Herring
- Department of Microbiology and Immunology, State University of New York at Buffalo School of Medicine, Buffalo, New York
| | - Essi Y I Tchalla
- Department of Microbiology and Immunology, State University of New York at Buffalo School of Medicine, Buffalo, New York
| | - Lauren R Heinzinger
- Department of Microbiology and Immunology, State University of New York at Buffalo School of Medicine, Buffalo, New York
| | - John M Leong
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts
| | - Elsa N Bou Ghanem
- Department of Microbiology and Immunology, State University of New York at Buffalo School of Medicine, Buffalo, New York
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Abstract
The ubiquitous adenine nucleoside adenosine (Ado), which plays an important role in cellular energetics, is released from cells under physiologic and pathophysiologic conditions. Another source of extracellular Ado is rapid degradation of extracellular adenosine 5′-triphosphate (ATP) by ectoenzymes. Extracellular Ado acts as an autocrine and paracrine agent by the activation of G protein-coupled cell surface receptors (GPCRs), designated as A1, A2A, A2B, and A3. Almost four decades ago, published data have indicated that Ado could play a role in immune-mediated histamine release from pulmonary mast cells. Since then, numerous studies have indicated that Ado’s signal transductions are involved in various pulmonary pathologies including asthma and COPD. This chapter is a succinct review of recent studies in this field.
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Affiliation(s)
- Pier Andrea Borea
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Katia Varani
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Stefania Gessi
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Stefania Merighi
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Fabrizio Vincenzi
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
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15
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Li D, Song LL, Wang J, Meng C, Cui XG. Adiponectin protects against lung ischemia-reperfusion injury in rats with type 2 diabetes mellitus. Mol Med Rep 2018; 17:7191-7201. [PMID: 29568898 PMCID: PMC5928677 DOI: 10.3892/mmr.2018.8748] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 12/14/2017] [Indexed: 11/06/2022] Open
Abstract
Adiponectin (APN) has been associated with the pathogenesis of acute brain, liver and heart injury. However, the role of APN in lung ischemia-reperfusion injury (LIRI) in diabetes mellitus remains unclear. To investigate this, the present study evaluated the effects of APN on lung dysfunction and pathological alterations in rats with type 2 diabetes mellitus via lung ischemia/reperfusion (I/R). The lung‑protective effects of APN globular domain (gAPN) in rats with type 2 diabetes mellitus were also investigated by measuring the oxygenation index, inflammatory cytokines, lung edema, histopathology, oxidative stress, apoptosis and the protein expression levels of phosphorylated 5'adenosine monophosphate‑activated protein kinase (p‑AMPK), endothelial nitric oxide synthase (eNOS) and inducible nitric oxide synthase (iNOS). The results of the present study demonstrated that the diabetes mellitus rats + I/R (DIR) group exhibited greater concentrations of tumor necrosis factor‑α and interleukin‑6, and increases in the wet‑weight to dry‑weight ratio, lung injury score, oxidative stress and cellular apoptosis. These effects were accompanied by lower pulmonary oxygenation compared with the normal rat + I/R (NIR) group (P<0.05). Additionally, all of these alterations were attenuated in the NIR + gAPN and DIR + gAPN groups compared with in the NIR and DIR groups, respectively. In the DIR group, the expression levels of p‑AMPK/AMPK and eNOS were significantly downregulated, and the levels of iNOS were upregulated, compared with those of the NIR group. Treatment with APN activated AMPK, increased eNOS expression and attenuated iNOS expression. The results of the present study demonstrated that APN exerted protective effects against LIRI via its anti‑inflammatory, antioxidative stress and anti‑apoptotic activities. These protective effects of APN were eliminated in rats with type 2 diabetes mellitus, in which LIRI was exacerbated. The present study indicated that APN may be a potential therapeutic agent for LIRI in type 2 diabetes mellitus.
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Affiliation(s)
- Di Li
- Department of Anesthesiology, The Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Lin-Lin Song
- Department of Anesthesiology, The Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Juan Wang
- Department of Anesthesiology, The Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Chao Meng
- Department of Anesthesiology, The Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Xiao-Guang Cui
- Department of Anesthesiology, The Heilongjiang Province Key Laboratory of Research on Anesthesiology and Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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16
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Wang X, Chen D. Purinergic Regulation of Neutrophil Function. Front Immunol 2018; 9:399. [PMID: 29545806 PMCID: PMC5837999 DOI: 10.3389/fimmu.2018.00399] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 02/13/2018] [Indexed: 12/28/2022] Open
Abstract
Purinergic signaling, which utilizes nucleotides (particularly ATP) and adenosine as transmitter molecules, plays an essential role in immune system. In the extracellular compartment, ATP predominantly functions as a pro-inflammatory molecule through activation of P2 receptors, whereas adenosine mostly functions as an anti-inflammatory molecule through activation of P1 receptors. Neutrophils are the most abundant immune cells in circulation and have emerged as an important component in orchestrating a complex series of events during inflammation. However, because of the destructive nature of neutrophil-derived inflammatory agents, neutrophil activation is fine-tuned, and purinergic signaling is intimately involved in this process. Indeed, shifting the balance between P2 and P1 signaling is critical for neutrophils to appropriately exert their immunologic activity. Here, we review the role of purinergic signaling in regulating neutrophil function, and discuss the potential of targeting purinergic signaling for the treatment of neutrophil-associated infectious and inflammatory diseases.
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Affiliation(s)
- Xu Wang
- Institute of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Deyu Chen
- Institute of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
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17
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Smail H, Baste JM, Gay A, Begueret H, Noël R, Morin JP, Litzler PY. Role of inflammatory cells and adenosine in lung ischemia reoxygenation injury using a model of lung donation after cardiac death. Exp Lung Res 2016; 42:131-41. [PMID: 27093377 DOI: 10.3109/01902148.2016.1158887] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
AIM The objective of this study is to analyze the role of inflammation in the lung ischemia reperfusion (IR) injury and determine the protective role of adenosine in an in vitro lung transplantation model. MATERIALS AND METHODS We used a hybrid model of lung donor after cardiac death, with warm ischemia in corpo of varying duration (2 h, 4 h) followed by in vitro lung slices culture for reoxygenation (1 h, 4 h and 24 h), in the presence or not of lymphocytes and of adenosine. To quantify the inflammatory lesions, we performed TNFα, IL2 assays, and histological analysis. RESULTS In this model of a nonblood perfused system, the addition of lymphocytes during reoxygenation lead to higher rates of TNFα and IL2 after 4 h than after 2 h of warm ischemia (P < .05). These levels increased with the duration of reoxygenation and were maximum at 24 h (P < .05). In the presence of adenosine TNFα and IL2 decreased. After 2 h of warm ischemia, we observed a significant inflammatory infiltration, alveolar thickening and a necrosis of the bronchiolar cells. After 4 h of warm ischemia, alveolar cells necrosis was associated. CONCLUSION This model showed that lymphocytes increased the inflammatory response and the histological lesions after 4 h of warm ischemia and that adenosine could have an anti-inflammatory role with potential reconditioning action when used in the pneumoplegia solution.
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Affiliation(s)
- Hassiba Smail
- a Department of Thoracic and Cardio-Vascular Surgery , University Hospital of Rouen , Rouen , France.,b ABTE Toxemac, Rouen University , Rouen , France
| | - Jean-Marc Baste
- c Department of General and Thoracic Surgery , University Hospital of Rouen , Rouen , France.,d INSERM, Rouen University , Rouen , France
| | - Arnaud Gay
- a Department of Thoracic and Cardio-Vascular Surgery , University Hospital of Rouen , Rouen , France.,b ABTE Toxemac, Rouen University , Rouen , France
| | - Hugues Begueret
- e Department of Pathology , University Hospital of Bordeaux , Bordeaux , France
| | - Romain Noël
- b ABTE Toxemac, Rouen University , Rouen , France
| | | | - Pierre-Yves Litzler
- a Department of Thoracic and Cardio-Vascular Surgery , University Hospital of Rouen , Rouen , France.,d INSERM, Rouen University , Rouen , France
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18
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McHugh WM, Russell WW, Fleszar AJ, Rodenhouse PE, Rietberg SP, Sun L, Shanley TP, Cornell TT. Protein phosphatase 2A activation attenuates inflammation in murine models of acute lung injury. Am J Physiol Lung Cell Mol Physiol 2016; 311:L903-L912. [PMID: 27638902 DOI: 10.1152/ajplung.00007.2016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 09/11/2016] [Indexed: 12/27/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) remains a leading cause of morbidity and mortality in both adult and pediatric intensive care units. A key event in the development of ARDS is neutrophil recruitment into the lungs leading to tissue damage and destruction. Interleukin-8 (IL-8) is the major human chemokine responsible for neutrophil recruitment into the lungs. Protein phosphatase 2A (PP2A) has been shown to be a key regulator of the mitogen-activated protein kinase (MAPK) cascades, which control the production of IL-8. Previously, our laboratory employed an in vitro model to show that inhibition of PP2A results in an increase in IL-8 production in human alveolar epithelial cells. The objective of this study was to determine whether PP2A regulated this response in vivo by investigating the impact of pharmacologic activation of PP2A on chemokine production and activation of the MAPK cascade and lung injury using endotoxin- and bacterial-challenge models of ARDS in mice. N6-cyclopentyladenosine (N6-CPA) increased PP2A activity and inhibited endotoxin-induced cytokine production in a murine alveolar macrophage cell line. N6-CPA pretreatment in mice challenged with intratracheal endotoxin decreased chemokine production, reduced neutrophil infiltration, and attenuated lung injury. Following initiation of lung injury with live Pseudomonas aeruginosa, mice that received N6-CPA 4 h following bacterial challenge showed attenuated chemokine production and reduced neutrophil infiltration compared with control mice. Pharmacologic PP2A activation both limited and prevented inflammation and tissue injury in two direct injury models of ARDS. These results suggest modulation of PP2A activity as a therapeutic target in ARDS.
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Affiliation(s)
- Walker M McHugh
- Division of Pediatric Critical Care Medicine, Department of Pediatrics and Communicable Diseases, University of Michigan School of Medicine, and C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, Michigan
| | - William W Russell
- Division of Pediatric Critical Care Medicine, Department of Pediatrics and Communicable Diseases, University of Michigan School of Medicine, and C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, Michigan
| | - Andrew J Fleszar
- Division of Pediatric Critical Care Medicine, Department of Pediatrics and Communicable Diseases, University of Michigan School of Medicine, and C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, Michigan
| | - Paul E Rodenhouse
- Division of Pediatric Critical Care Medicine, Department of Pediatrics and Communicable Diseases, University of Michigan School of Medicine, and C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, Michigan
| | - Skyler P Rietberg
- Division of Pediatric Critical Care Medicine, Department of Pediatrics and Communicable Diseases, University of Michigan School of Medicine, and C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, Michigan
| | - Lei Sun
- Division of Pediatric Critical Care Medicine, Department of Pediatrics and Communicable Diseases, University of Michigan School of Medicine, and C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, Michigan
| | - Thomas P Shanley
- Division of Pediatric Critical Care Medicine, Department of Pediatrics and Communicable Diseases, University of Michigan School of Medicine, and C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, Michigan
| | - Timothy T Cornell
- Division of Pediatric Critical Care Medicine, Department of Pediatrics and Communicable Diseases, University of Michigan School of Medicine, and C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, Michigan
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19
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Huerter ME, Sharma AK, Zhao Y, Charles EJ, Kron IL, Laubach VE. Attenuation of Pulmonary Ischemia-Reperfusion Injury by Adenosine A2B Receptor Antagonism. Ann Thorac Surg 2016; 102:385-393. [PMID: 27109193 DOI: 10.1016/j.athoracsur.2016.02.060] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/16/2016] [Accepted: 02/16/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND Ischemia-reperfusion injury (IRI) is a major source of morbidity and mortality after lung transplantation. We previously demonstrated a proinflammatory role of adenosine A2B receptor (A2BR) in lung IR injury. The current study tests the hypothesis that A2BR antagonism is protective of ischemic lungs after in vivo reperfusion or ex vivo lung perfusion (EVLP). METHODS Mice underwent lung IR with or without administration of ATL802, a selective A2BR antagonist. A murine model of EVLP was also used to evaluate rehabilitation of donation after circulatory death (DCD) lungs. DCD lungs underwent ischemia, cold preservation, and EVLP with Steen solution with or without ATL802. A549 human type 2 alveolar epithelial cells were exposed to hypoxia-reoxygenation (HR) (3 hours/1 hour) with or without ATL802 treatment. Cytokines were measured in bronchoalveolar lavage (BAL) fluid and culture media by enzyme-linked immunoassay (ELISA). RESULTS After IR, ATL802 treatment significantly improved lung function (increased pulmonary compliance and reduced airway resistance and pulmonary artery pressure) and significantly attenuated proinflammatory cytokine production, neutrophil infiltration, vascular permeability, and edema. ATL802 also significantly improved the function of DCD lungs after EVLP (increased compliance and reduced pulmonary artery pressure). After HR, A549 cells exhibited robust production of interleukin (IL)-8, a potent neutrophil chemokine, which was significantly attenuated by ATL802. CONCLUSIONS These results demonstrate that A2BR antagonism attenuates lung IRI and augments reconditioning of DCD lungs by EVLP. The protective effects of ATL802 may involve targeting A2BRs on alveolar epithelial cells to prevent IL-8 production. A2BR may be a novel therapeutic target for mitigating IRI to increase the success of lung transplantation.
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Affiliation(s)
- Mary E Huerter
- Department of Surgery, University of Virginia, Charlottesville, VA
| | - Ashish K Sharma
- Department of Surgery, University of Virginia, Charlottesville, VA
| | - Yunge Zhao
- Department of Surgery, University of Virginia, Charlottesville, VA
| | - Eric J Charles
- Department of Surgery, University of Virginia, Charlottesville, VA
| | - Irving L Kron
- Department of Surgery, University of Virginia, Charlottesville, VA
| | - Victor E Laubach
- Department of Surgery, University of Virginia, Charlottesville, VA
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20
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Borea PA, Gessi S, Merighi S, Varani K. Adenosine as a Multi-Signalling Guardian Angel in Human Diseases: When, Where and How Does it Exert its Protective Effects? Trends Pharmacol Sci 2016; 37:419-434. [PMID: 26944097 DOI: 10.1016/j.tips.2016.02.006] [Citation(s) in RCA: 210] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 02/08/2016] [Accepted: 02/09/2016] [Indexed: 12/20/2022]
Abstract
The importance of adenosine for human health cannot be overstated. Indeed, this ubiquitous nucleoside is an integral component of ATP, and regulates the function of every tissue and organ in the body. Acting via receptor-dependent and -independent mechanisms [the former mediated via four G-protein-coupled receptors (GPCRs), A1, A2A, A2B, and A3,], it has a significant role in protecting against cell damage in areas of increased tissue metabolism, and combating organ dysfunction in numerous pathological states. Accordingly, raised levels of adenosine have been demonstrated in epilepsy, ischaemia, pain, inflammation, and cancer, in which its behaviour can be likened to that of a guardian angel, even though there are instances in which overproduction of adenosine is pathological. In this review, we condense the current body of knowledge on the issue, highlighting when, where, and how adenosine exerts its protective effects in both the brain and the periphery.
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Affiliation(s)
- Pier Andrea Borea
- Department of Medical Sciences, Pharmacology Section, University of Ferrara, Via Fossato di Mortara, 17-19, 44121 Ferrara, Italy.
| | - Stefania Gessi
- Department of Medical Sciences, Pharmacology Section, University of Ferrara, Via Fossato di Mortara, 17-19, 44121 Ferrara, Italy.
| | - Stefania Merighi
- Department of Medical Sciences, Pharmacology Section, University of Ferrara, Via Fossato di Mortara, 17-19, 44121 Ferrara, Italy.
| | - Katia Varani
- Department of Medical Sciences, Pharmacology Section, University of Ferrara, Via Fossato di Mortara, 17-19, 44121 Ferrara, Italy
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21
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Bou Ghanem EN, Clark S, Roggensack SE, McIver SR, Alcaide P, Haydon PG, Leong JM. Extracellular Adenosine Protects against Streptococcus pneumoniae Lung Infection by Regulating Pulmonary Neutrophil Recruitment. PLoS Pathog 2015; 11:e1005126. [PMID: 26313746 PMCID: PMC4552087 DOI: 10.1371/journal.ppat.1005126] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 08/04/2015] [Indexed: 12/15/2022] Open
Abstract
An important determinant of disease following Streptococcus pneumoniae (pneumococcus) lung infection is pulmonary inflammation mediated by polymorphonuclear leukocytes (PMNs). We found that upon intratracheal challenge of mice, recruitment of PMNs into the lungs within the first 3 hours coincided with decreased pulmonary pneumococci, whereas large numbers of pulmonary PMNs beyond 12 hours correlated with a greater bacterial burden. Indeed, mice that survived infection largely resolved inflammation by 72 hours, and PMN depletion at peak infiltration, i.e. 18 hours post-infection, lowered bacterial numbers and enhanced survival. We investigated host signaling pathways that influence both pneumococcus clearance and pulmonary inflammation. Pharmacologic inhibition and/or genetic ablation of enzymes that generate extracellular adenosine (EAD) (e.g. the ectoenzyme CD73) or degrade EAD (e.g. adenosine deaminase) revealed that EAD dramatically increases murine resistance to S. pneumoniae lung infection. Moreover, adenosine diminished PMN movement across endothelial monolayers in vitro, and although inhibition or deficiency of CD73 had no discernible impact on PMN recruitment within the first 6 hours after intratracheal inoculation of mice, these measures enhanced PMN numbers in the pulmonary interstitium after 18 hours of infection, culminating in dramatically elevated numbers of pulmonary PMNs at three days post-infection. When assessed at this time point, CD73-/- mice displayed increased levels of cellular factors that promote leukocyte migration, such as CXCL2 chemokine in the murine lung, as well as CXCR2 and β-2 integrin on the surface of pulmonary PMNs. The enhanced pneumococcal susceptibility of CD73-/- mice was significantly reversed by PMN depletion following infection, suggesting that EAD-mediated resistance is largely mediated by its effects on PMNs. Finally, CD73-inhibition diminished the ability of PMNs to kill pneumococci in vitro, suggesting that EAD alters both the recruitment and bacteriocidal function of PMNs. The EAD-pathway may provide a therapeutic target for regulating potentially harmful inflammatory host responses during Gram-positive bacterial pneumonia. Despite the presence of vaccines and antibiotic therapies, invasive Streptococcus pneumoniae (pneumococcus) infections, such as pneumonia, bacteremia and meningitis, remain a leading cause of mortality and morbidity worldwide. Understanding the host factors that influence the outcome of S. pneumoniae infection will allow us to design better therapies. Here, we elucidate the role of rapidly responding innate immune cells termed neutrophils, or PMNs (polymorphonuclear leukocytes), whose role in S. pneumoniae infection has long been controversial. We found that PMNs are initially required for controlling bacterial numbers, but their extended presence in the lungs leads to significant damage and poor control of infection. The signals that control the movement of PMNs into the infected lungs are not well understood. Here, we identified extracellular adenosine (EAD), a molecule produced by the host in response to cellular damage, as important in limiting PMN movement into the lungs upon pneumococcal challenge. Importantly, EAD-mediated control of PMNs was crucial for fighting lung infection by S. pneumoniae. This study may lead to the potential use of clinically available adenosine-based therapies to combat pneumococcal pneumonia in the future.
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Affiliation(s)
- Elsa N. Bou Ghanem
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Stacie Clark
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Sara E. Roggensack
- Program in Molecular Microbiology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, Massachusetts, United States of America
| | - Sally R. McIver
- Department of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Pilar Alcaide
- Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine and Molecular Cardiology Research Institute, Tufts Medical Center, Boston, Massachusetts, United States of America
| | - Philip G. Haydon
- Department of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - John M. Leong
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
- * E-mail:
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22
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Yang P, Yang N, Zhang X, Xu X. The significance and mechanism of propofol on treatment of ischemia reperfusion induced lung injury in rats. Cell Biochem Biophys 2015; 70:1527-32. [PMID: 25074530 DOI: 10.1007/s12013-014-0088-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This study is aimed to investigate the efficacy and underlying the mechanism of propofol in treatment of ischemia reperfusion (IR)-induced lung injury in rats, providing a novel insight of therapeutic strategy for IR-induced lung injury. 120 healthy SD rats were selected and randomly divided into sham operation group, IR group, and propofol group (40 rats per group). Bronchoalveolar lavage fluid (BALF) protein content, serum protein content, lung permeability index, lung water content rate, methane dicarboxylic aldehyde (MDA) in lung tissue, superoxide dismutase (SOD), nitric oxide (NO), endothelin (ET-1), toll-like receptor 4 (TLR4), nuclear factor (NF-κB), and tumor necrosis factor-α (TNF-α) were examined and compared among different groups to evaluate the therapeutical effects of propofol on IR-induced lung injury and analyze the mechanism. In sham operation group, neither change in lung tissue nor pulmonary interstitial edema or alveolar wall damage was found under microscope; in IR group, marked pulmonary interstitial edema and alveolar wall damage complicated with inflammatory cell infiltration and hemorrhage were found; in propofol group, alveolar wall widening was observed, however, hemorrhage in alveolar cavity, inflammatory infiltration and tissue damage were less significant than in IR group. At 3 h after reperfusion, BALF protein content, lung permeability index, and lung water content rate were all significantly increased in IR group and propofol group, while the serum protein content was significantly lower than sham operation group (p < 0.05). Moreover, we found that the change of above parameters in propofol group was less significant than in IR group (p < 0.05). No statistically significant difference was found in ET-1 levels in different groups (p > 0.05). In contrast, MDA and NO in IR group and propofol group were significantly increased, while SOD activity was significantly decreased (p < 0.05). Furthermore, the change of above parameters in propofol group was less significant than in IR group (p < 0.05). In addition, mRNAs of TLR4, NF-κB, and TNF-α were significantly increased in IR group and propofol group (p < 0.05) with more significant change in IR group compared with propofol group (p < 0.05). Propofol has protective effects against IR-induced lung injury by improving activity of oxygen radical and restoring NO/ET-1 dynamic balance. Besides, regulation of TLR4, NF-κB, and TNF-α by propofol also play important role in alleviating IR-induced lung injury.
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Affiliation(s)
- Pei Yang
- Department of Anesthesiology, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, People's Republic of China
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Anti-inflammatory, antioxidant, and antiparkinsonian effects of adenosine A 2A receptor antagonists. Pharmacol Biochem Behav 2015; 132:71-78. [PMID: 25735490 DOI: 10.1016/j.pbb.2015.02.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 02/18/2015] [Accepted: 02/20/2015] [Indexed: 11/21/2022]
Abstract
The purpose of the study was to examine derivatives of annelated xanthines (imidazo-, pyrimido-, and diazepino-purinediones) for potential anti-inflammatory effects in carrageenan-induced paw edema in mice. Additionally, their antioxidant activity using the FRAP (ferric-reducing ability of plasma) assay and lipid peroxidation in rat brain homogenate were analyzed. All the studied derivatives showed affinity for adenosine A2A receptor. The preliminary assays found that five (KD-114, KD-57, KD-129, KD-50, and KD-358) pyrimidopurinedione derivatives, administered intraperitoneally (i.p.) at a dose of 100mg/kg, had stronger anti-inflammatory effects. At a concentration of 10-5M, three of the derivatives KD-57, KD-114, and KD-129 most influenced the total antioxidant ability. The most efficient anti-inflammatory compound, KD-114, also showed the strongest binding to A2A receptors and when administered at a dose of 5mg/kg (i.p.), effectively reversed haloperidol-induced catalepsy and significantly increased the striatal extracellular dopamine level in the rat striatum. This effect was weaker than the one produced by CSC (1mg/kg i.p.), and only slightly weaker than that produced by ZM 241385 (3mg/kg i.p.) used as reference drugs. From the results of the present studies, it may be concluded that anti-inflammatory and antiparkinsonian effects of the examined compounds correlate with their influence on adenosine A2A receptors, the most probable antagonism to these subtype receptors.
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La Francesca S, Ting AE, Sakamoto J, Rhudy J, Bonenfant NR, Borg ZD, Cruz FF, Goodwin M, Lehman NA, Taggart JM, Deans R, Weiss DJ. Multipotent adult progenitor cells decrease cold ischemic injury in ex vivo perfused human lungs: an initial pilot and feasibility study. Transplant Res 2014; 3:19. [PMID: 25671090 PMCID: PMC4323223 DOI: 10.1186/2047-1440-3-19] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Accepted: 09/29/2014] [Indexed: 12/19/2022] Open
Abstract
Background Primary graft dysfunction (PGD) is a significant cause of early morbidity and mortality following lung transplantation. Improved organ preservation techniques will decrease ischemia-reperfusion injury (IRI) contributing to PGD. Adult bone marrow-derived adherent stem cells, including mesenchymal stromal (stem) cells (MSCs) and multipotent adult progenitor cells (MAPCs), have potent anti-inflammatory actions, and we thus postulated that intratracheal MAPC administration during donor lung processing would decrease IRI. The goal of the study was therefore to determine if intratracheal MAPC instillation would decrease lung injury and inflammation in an ex vivo human lung explant model of prolonged cold storage and subsequent reperfusion. Methods Four donor lungs not utilized for transplant underwent 8 h of cold storage (4°C). Following rewarming for approximately 30 min, non-HLA-matched allogeneic MAPCs (1 × 107 MAPCs/lung) were bronchoscopically instilled into the left lower lobe (LLL) and vehicle comparably instilled into the right lower lobe (RLL). The lungs were then perfused and mechanically ventilated for 4 h and subsequently assessed for histologic injury and for inflammatory markers in bronchoalveolar lavage fluid (BALF) and lung tissue. Results All LLLs consistently demonstrated a significant decrease in histologic and BALF inflammation compared to vehicle-treated RLLs. Conclusions These initial pilot studies suggest that use of non-HLA-matched allogeneic MAPCs during donor lung processing can decrease markers of cold ischemia-induced lung injury. Electronic supplementary material The online version of this article (doi:10.1186/2047-1440-3-19) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Saverio La Francesca
- Cardiac Surgery and Cardiopulmonary Transplantation, DeBakey Heart and Vascular Center, The Houston Methodist, Houston, TX USA ; Harvard Apparatus Regenerative Technology, Inc, Holliston, MA USA
| | | | - Jason Sakamoto
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX USA
| | - Jessica Rhudy
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX USA
| | - Nicholas R Bonenfant
- Department of Medicine, University of Vermont College of Medicine, 226 Health Science Research Facility, Burlington, VT USA
| | - Zachary D Borg
- Department of Medicine, University of Vermont College of Medicine, 226 Health Science Research Facility, Burlington, VT USA
| | - Fernanda F Cruz
- Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Meagan Goodwin
- Department of Medicine, University of Vermont College of Medicine, 226 Health Science Research Facility, Burlington, VT USA
| | | | | | | | - Daniel J Weiss
- Department of Medicine, University of Vermont College of Medicine, 226 Health Science Research Facility, Burlington, VT USA
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Wilson CN, Vance CO, Lechner MG, Matuschak GM, Lechner AJ. Adenosine A1 receptor antagonist, L-97-1, improves survival and protects the kidney in a rat model of cecal ligation and puncture induced sepsis. Eur J Pharmacol 2014; 740:346-52. [PMID: 25041842 PMCID: PMC4147868 DOI: 10.1016/j.ejphar.2014.07.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 07/07/2014] [Accepted: 07/09/2014] [Indexed: 11/17/2022]
Abstract
Previously it was reported that combining antibiotics with L-97-1, an adenosine A1 receptor antagonist, significantly improves survival and blocks acute lung injury induced by Yersinia pestis CO 99 in a rat model of pneumonic plague. In the current studies using a conscious rat model of cecal ligation and puncture (CLP) sepsis, L-97-1 was administered in daily intravenous infusions in combination with antibiotics to simulate the use of L-97-1 as an anti-sepsis therapeutic in the clinical setting. In these studies, when administered at 12 h following CLP, in combination with broad spectrum antibiotics, ceftriaxone and clindamycin, L-97-1 improves 7 day (d) survival [25%, 35%, and 75% for L-97-1 (10 mg/kg/h, 12.5 mg/kg/h, and 15 mg/kg/h, respectively) versus (vs.) 25% for antibiotics alone] in a dose-dependent manner. The addition of L-97-1, 15 mg/kg/h to antibiotics significantly increased 7 d survival following CLP compared to therapy with either antibiotics alone (P=0.002) or L-97-1 at 15 mg/kg/h alone (P<0.001) and was not significantly different than survival in sham CLP animals (Log-rank (Mantel-Cox) test with Bonferroni׳s correction for multiple comparisons). Moreover, in these studies, in combination with antibiotics L-97-1 dose-dependently protects the kidney, significantly improving renal function at 24 h post CLP at 10 mg/kg/h (P<0.001), 12.5 mg/kg/h (P<0.0001), and 15 mg/kg/h (P<0.0001) vs. antibiotics alone (ANOVA followed by Tukey׳s post-hoc test for pair-wise comparisons). The results of these studies support efficacy for L-97-1 as an anti-sepsis therapeutic.
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Affiliation(s)
- Constance N Wilson
- Endacea Inc., 2 Davis Drive, P.O. Box 12076, Research Triangle Park, NC 27709-2076, United States.
| | - Constance O Vance
- Endacea Inc., 2 Davis Drive, P.O. Box 12076, Research Triangle Park, NC 27709-2076, United States
| | - Melissa G Lechner
- Department of Medicine Brigham and Women׳s Hospital 75 Francis Street, Boston MA 02115, United States
| | | | - Andrew J Lechner
- Saint Louis University School of Medicine, St. Louis MO, United States
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Zhang X, Xia J, Qian D, Wang Y, Lin Y, Huang X, Tan J. An Adenosine A 1 Agonist 2-Chloro-N6 Cyclopentyladenosine Inhibits the Angiotensin II-Induced Cardiomyocyte Hypertrophy through the Calcineurin Pathway. Cardiology 2014; 129:153-62. [DOI: 10.1159/000364995] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Accepted: 05/30/2014] [Indexed: 11/19/2022]
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Burnstock G, Ralevic V. Purinergic signaling and blood vessels in health and disease. Pharmacol Rev 2013; 66:102-92. [PMID: 24335194 DOI: 10.1124/pr.113.008029] [Citation(s) in RCA: 227] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Purinergic signaling plays important roles in control of vascular tone and remodeling. There is dual control of vascular tone by ATP released as a cotransmitter with noradrenaline from perivascular sympathetic nerves to cause vasoconstriction via P2X1 receptors, whereas ATP released from endothelial cells in response to changes in blood flow (producing shear stress) or hypoxia acts on P2X and P2Y receptors on endothelial cells to produce nitric oxide and endothelium-derived hyperpolarizing factor, which dilates vessels. ATP is also released from sensory-motor nerves during antidromic reflex activity to produce relaxation of some blood vessels. In this review, we stress the differences in neural and endothelial factors in purinergic control of different blood vessels. The long-term (trophic) actions of purine and pyrimidine nucleosides and nucleotides in promoting migration and proliferation of both vascular smooth muscle and endothelial cells via P1 and P2Y receptors during angiogenesis and vessel remodeling during restenosis after angioplasty are described. The pathophysiology of blood vessels and therapeutic potential of purinergic agents in diseases, including hypertension, atherosclerosis, ischemia, thrombosis and stroke, diabetes, and migraine, is discussed.
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Affiliation(s)
- Geoffrey Burnstock
- Autonomic Neuroscience Centre, University College Medical School, Rowland Hill Street, London NW3 2PF, UK; and Department of Pharmacology, The University of Melbourne, Australia.
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