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Adini A, Adini I, Grad E, Tal Y, Danenberg HD, Kang PM, Matthews BD, D’Amato RJ. The Prominin-1-Derived Peptide Improves Cardiac Function Following Ischemia. Int J Mol Sci 2021; 22:5169. [PMID: 34068392 PMCID: PMC8153573 DOI: 10.3390/ijms22105169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/26/2021] [Accepted: 05/11/2021] [Indexed: 12/11/2022] Open
Abstract
Myocardial infarction (MI) remains the leading cause of death in the western world. Despite advancements in interventional revascularization technologies, many patients are not candidates for them due to comorbidities or lack of local resources. Non-invasive approaches to accelerate revascularization within ischemic tissues through angiogenesis by providing Vascular Endothelial Growth Factor (VEGF) in protein or gene form has been effective in animal models but not in humans likely due to its short half-life and systemic toxicity. Here, we tested the hypothesis that PR1P, a small VEGF binding peptide that we developed, which stabilizes and upregulates endogenous VEGF, could be used to improve outcome from MI in rodents. To test this hypothesis, we induced MI in mice and rats via left coronary artery ligation and then treated animals with every other day intraperitoneal PR1P or scrambled peptide for 14 days. Hemodynamic monitoring and echocardiography in mice and echocardiography in rats at 14 days showed PR1P significantly improved multiple functional markers of heart function, including stroke volume and cardiac output. Furthermore, molecular biology and histological analyses of tissue samples showed that systemic PR1P targeted, stabilized and upregulated endogenous VEGF within ischemic myocardium. We conclude that PR1P is a potential non-invasive candidate therapeutic for MI.
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Affiliation(s)
- Avner Adini
- Vascular Biology Program, Department of Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA; (B.D.M.); (R.J.D.)
- Department of Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Irit Adini
- Department of Surgery, Harvard Medical School, The Center for Engineering in Medicine, Mass General Hospital, Shriners Hospitals for Children Boston, Boston, MA 02114, USA;
| | - Etty Grad
- Interventional Cardiology, Heart Institute, Hadassah Hebrew University Medical Center, Jerusalem 91200, Israel; (E.G.); (H.D.D.)
| | - Yuval Tal
- Allergy and Clinical Immunology Unit and Department of Medicine, Hadassah University Medical Center, Jerusalem 91200, Israel;
| | - Haim D. Danenberg
- Interventional Cardiology, Heart Institute, Hadassah Hebrew University Medical Center, Jerusalem 91200, Israel; (E.G.); (H.D.D.)
| | - Peter M. Kang
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA;
| | - Benjamin D. Matthews
- Vascular Biology Program, Department of Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA; (B.D.M.); (R.J.D.)
- Department of Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Robert J. D’Amato
- Vascular Biology Program, Department of Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA; (B.D.M.); (R.J.D.)
- Department of Ophthalmology, Harvard Medical School, Boston, MA 02115, USA
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Cattaneo L, Lopreiato V, Piccioli-Cappelli F, Trevisi E, Minuti A. Plasma albumin-to-globulin ratio before dry-off as a possible index of inflammatory status and performance in the subsequent lactation in dairy cows. J Dairy Sci 2021; 104:8228-8242. [PMID: 33865585 DOI: 10.3168/jds.2020-19944] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 03/05/2021] [Indexed: 01/27/2023]
Abstract
The dry-off of dairy cows represents an important phase of the lactation cycle, influencing the outcome of the next lactation. Among the physiological changes, the severity of the inflammatory response can vary after the dry-off, and this response might have consequences on cow adaptation in the transition period. The plasma protein profile is a diagnostic tool widely used in humans and animals to assess the inflammatory status and predict the outcome of severe diseases. The albumin-to-globulin ratio (AG) can represent a simple and useful proxy for the inflammatory condition. In this study, we investigated the relationship between AG before dry-off and inflammation, metabolic profile, and performance of 75 Holstein dairy cows. Blood samples were collected from -62 (7 d before dry-off) to 28 d relative to calving (DFC) to measure metabolic profile biomarkers, inflammatory variables, and liver function. Daily milk yield in the first month of lactation was recorded. Milk composition, body condition score, fertility, and health status were also assessed. The AG calculated 1 wk before dry-off (-62 DFC) was used to retrospectively group cows into tertiles (1.06 ± 0.09 for HI, 0.88 ± 0.04 for IN, and 0.72 ± 0.08 for LO). Data were subjected to ANOVA using the PROC MIXED program in SAS software. Differences among groups observed at -62 DFC were almost maintained throughout the period of interest, but AG peaked before calving. According to the level of acute-phase proteins (haptoglobin, ceruloplasmin, albumin, cholesterol, retinol-binding protein), bilirubin, and paraoxonase, a generally overall lower inflammatory condition was found in HI and IN than in the LO group immediately after the dry-off but also after calving. The HI cows had greater milk yield than LO cows, but no differences were observed in milk composition. The somatic cell count reflected the AG ratio trend, with higher values in LO than IN and HI either before dry-off or after calving. Fertility was better in HI cows, with fewer days open and services per pregnancy than IN and LO cows. Overall, cows with high AG before dry-off showed an improved adaptation to the new lactation, as demonstrated by a reduced systemic inflammatory response and increased milk yield than cows with low AG. In conclusion, the AG ratio before dry-off might represent a rapid and useful proxy to evaluate the innate immune status and likely the ability to adapt while switching from the late lactation to the nonlactating phase and during the transition period with emphasis on early lactation.
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Affiliation(s)
- L Cattaneo
- Department of Animal Science, Food and Nutrition (DIANA), Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - V Lopreiato
- Department of Animal Science, Food and Nutrition (DIANA), Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - F Piccioli-Cappelli
- Department of Animal Science, Food and Nutrition (DIANA), Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - E Trevisi
- Department of Animal Science, Food and Nutrition (DIANA), Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy; Romeo and Enrica Invernizzi Research Center for Sustainable Dairy Production of the Università Cattolica del Sacro Cuore (CREI), 29122 Piacenza, Italy.
| | - A Minuti
- Department of Animal Science, Food and Nutrition (DIANA), Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
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Hanna A, Shinde AV, Frangogiannis NG. Validation of diagnostic criteria and histopathological characterization of cardiac rupture in the mouse model of nonreperfused myocardial infarction. Am J Physiol Heart Circ Physiol 2020; 319:H948-H964. [PMID: 32886000 DOI: 10.1152/ajpheart.00318.2020] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In patients with myocardial infarction (MI), cardiac rupture is an uncommon but catastrophic complication. In the mouse model of nonreperfused MI, reported rupture rates are highly variable and depend not only on the genetic background and sex of animals but also on the method used for documentation of rupture. In most studies, diagnosis of cardiac rupture is based on visual inspection during autopsy; however, criteria are poorly defined. We performed systematic histopathological analysis of whole hearts from C57BL/6J mice dying after nonreperfused MI and evaluated the reliability of autopsy-based criteria in identification of rupture. Moreover, we compared the cell biological environment of the infarct between rupture-related and rupture-independent deaths. Histopathological analysis documented rupture in 50% of mice dying during the first week post-MI. Identification of a gross rupture site was highly specific but had low sensitivity; in contrast, hemothorax had high sensitivity but low specificity. Mice with rupture had lower myofibroblast infiltration, accentuated macrophage influx, and a trend toward reduced collagen content in the infarct. Male mice had increased mortality and higher incidence of rupture. However, infarct myeloid cells harvested from male and female mice at the peak of the incidence of rupture had comparable inflammatory gene expression. In conclusion, the reliability of autopsy in documentation of rupture in infarcted mice is dependent on the specific criteria used. Macrophage-driven inflammation and reduced activation of collagen-secreting reparative myofibroblasts may be involved in the pathogenesis of post-MI cardiac rupture.NEW & NOTEWORTHY We show that cardiac rupture accounts for 50% of deaths in C57BL/6J mice undergoing nonreperfused myocardial infarction protocols. Overestimation of rupture events in published studies likely reflects the low specificity of hemothorax as a criterion for documentation of rupture. In contrast, identification of a gross rupture site has high specificity and low sensitivity. We also show that mice dying of rupture have increased macrophage influx and attenuated myofibroblast infiltration in the infarct. These findings are consistent with a role for perturbations in the balance between inflammatory and reparative responses in the pathogenesis of postinfarction cardiac rupture. We also report that the male predilection for rupture in infarcted mice is not associated with increased inflammatory activation of myeloid cells.
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Affiliation(s)
- Anis Hanna
- Division of Cardiology, Department of Medicine, The Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York
| | - Arti V Shinde
- Division of Cardiology, Department of Medicine, The Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York
| | - Nikolaos G Frangogiannis
- Division of Cardiology, Department of Medicine, The Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York
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Jiang T, Liu Y, Chen B, Si L. Identification of potential molecular mechanisms and small molecule drugs in myocardial ischemia/reperfusion injury. ACTA ACUST UNITED AC 2020; 53:S0100-879X2020000900604. [PMID: 32696819 PMCID: PMC7372942 DOI: 10.1590/1414-431x20209717] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 06/02/2020] [Indexed: 01/05/2023]
Abstract
Myocardial ischemia/reperfusion (MI/R) injury is a complex phenomenon that causes severe damage to the myocardium. However, the potential molecular mechanisms of MI/R injury have not been fully clarified. We identified potential molecular mechanisms and therapeutic targets in MI/R injury through analysis of Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were found between MI/R injury and normal samples, and overlapping DEGs were found between GSE61592 and GSE67308. Gene Ontology (GO) and pathway analysis were performed for overlapping DEGs by Database for Annotation, Visualization and Integration Discovery (DAVID). Then, a network of protein-protein interaction (PPI) was constructed through the Search Tool for the Retrieval of Interacting Genes (STRING) database. Potential microRNAs (miRNAs) and therapeutic small molecules were screened out using microRNA.org database and the Comparative Toxicogenomics database (CTD), respectively. Finally, we identified 21 overlapping DEGs related to MI/R injury. These DEGs were significantly enriched in IL-17 signaling pathway, cytosolic DNA-sensing pathway, chemokine signaling, and cytokine-cytokine receptor interaction pathway. According to the degree in the PPI network, CCL2, LCN2, HP, CCL7, HMOX1, CCL4, and S100A8 were found to be hub genes. Furthermore, we identified potential miRNAs (miR-24-3p, miR-26b-5p, miR-2861, miR-217, miR-4251, and miR-124-3p) and therapeutic small molecules like ozone, troglitazone, rosiglitazone, and n-3 polyunsaturated fatty acids for MI/R injury. These results identified hub genes and potential small molecule drugs, which could contribute to the understanding of molecular mechanisms and treatment for MI/R injury.
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Affiliation(s)
- Tao Jiang
- The Third Clinical Medical College, Chongqing Medical University, Chongqing, China
| | - Yingcun Liu
- The Third Clinical Medical College, Chongqing Medical University, Chongqing, China
| | - Biao Chen
- The Third Clinical Medical College, Chongqing Medical University, Chongqing, China
| | - Liangyi Si
- The Third Clinical Medical College, Chongqing Medical University, Chongqing, China
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5
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Mezzetti M, Minuti A, Piccioli-Cappelli F, Trevisi E. Inflammatory status and metabolic changes at dry-off in high-yield dairy cows. ITALIAN JOURNAL OF ANIMAL SCIENCE 2019. [DOI: 10.1080/1828051x.2019.1691472] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Matteo Mezzetti
- Department of Animal Sciences, Food and Nutrition (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Andrea Minuti
- Department of Animal Sciences, Food and Nutrition (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Fiorenzo Piccioli-Cappelli
- Department of Animal Sciences, Food and Nutrition (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Erminio Trevisi
- Department of Animal Sciences, Food and Nutrition (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, Piacenza, Italy
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Bright LA, Dittmar W, Nanduri B, McCarthy FM, Mujahid N, Costa LR, Burgess SC, Swiderski CE. Modeling the pasture-associated severe equine asthma bronchoalveolar lavage fluid proteome identifies molecular events mediating neutrophilic airway inflammation. VETERINARY MEDICINE-RESEARCH AND REPORTS 2019; 10:43-63. [PMID: 31119093 PMCID: PMC6504673 DOI: 10.2147/vmrr.s194427] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 02/12/2019] [Indexed: 12/11/2022]
Abstract
Background: Pasture-associated severe equine asthma is a warm season, environmentally-induced respiratory disease characterized by reversible airway obstruction, persistent and non-specific airway hyper-responsiveness, and chronic neutrophilic airway inflammation. During seasonal exacerbation, signs vary from mild to life-threatening episodes of wheezing, coughing, and chronic debilitating labored breathing. Purpose: In human asthma, neutrophilic airway inflammation is associated with more severe and steroid-refractory asthma phenotypes, highlighting a need to decipher the mechanistic basis of this disease characteristic. We hypothesize that the collective biological activities of proteins in bronchoalveolar lavage fluid (BALF) of horses with pasture-associated severe asthma predict changes in neutrophil functions that contribute to airway neutrophilic inflammation. Methods: Using shotgun proteomics, we identified 1,003 unique proteins in cell-free BALF from six horses experiencing asthma exacerbation and six control herdmates. Contributions of each protein to ten neutrophil functions were modeled using manual biocuration to determine each protein’s net effect on the respective neutrophil functions. Results: A total of 417 proteins were unique to asthmatic horses, 472 proteins were unique to control horses (p<0.05), and 114 proteins were common in both groups. Proteins whose biological activities are responsible for increasing neutrophil migration, chemotaxis, cell spreading, transmigration, and infiltration, which would collectively bring neutrophils to airways, were over-represented in the BALF of asthmatic relative to control horses. By contrast, proteins whose biological activities support neutrophil activation, adhesion, phagocytosis, respiratory burst, and apoptosis, which would collectively shorten neutrophil lifespan, were under-represented in BALF of asthmatic relative to control horses. Interaction networks generated using Ingenuity® Pathways Analysis further support the results of our biocuration. Conclusion: Congruent with our hypothesis, the collective biological functions represented in differentially expressed proteins of BALF from horses with pasture-associated severe asthma support neutrophilic airway inflammation. This illustrates the utility of systems modeling to organize functional genomics data in a manner that characterizes complex molecular events associated with clinically relevant disease.
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Affiliation(s)
- Lauren A Bright
- Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS 39762, USA
| | - Wellesley Dittmar
- Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS 39762, USA
| | - Bindu Nanduri
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS 39762, USA
| | - Fiona M McCarthy
- School of Animal Comparative and Biomedical Sciences, College of Agriculture and Life Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Nisma Mujahid
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS 39762, USA
| | - Lais Rr Costa
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS 39762, USA
| | - Shane C Burgess
- School of Animal Comparative and Biomedical Sciences, College of Agriculture and Life Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Cyprianna E Swiderski
- Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS 39762, USA
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Leclerc JL, Li C, Jean S, Lampert AS, Amador CL, Diller MA, Tolosano E, Doré S. Temporal and age-dependent effects of haptoglobin deletion on intracerebral hemorrhage-induced brain damage and neurobehavioral outcomes. Exp Neurol 2019; 317:22-33. [PMID: 30790555 DOI: 10.1016/j.expneurol.2019.01.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 01/01/2019] [Accepted: 01/17/2019] [Indexed: 12/14/2022]
Abstract
Intracerebral hemorrhage (ICH) is a devastating stroke subtype and the presence of extracorpuscular hemoglobin (Hb) exacerbates brain damage. Haptoglobin (Hp) binds Hb, which prevents its oxidation and participation in neurotoxic reactions. Multiple studies have investigated the role of Hp under conditions of intravascular hemolysis, but little is known about its role in the brain and following ICH where extravascular hemolysis is rampant. Young and aged wildtype and Hp-/- mice underwent the autologous blood or collagenase ICH model. Early after ICH, Hp-/- mice display 58.0 ± 5.6% and 36.7 ± 6.9% less brain damage in the autologous blood and collagenase ICH models, respectively. In line with these findings, Hp-/- mice display less neurological deficits on several neurobehavioral tests. Hp-/- mice have less Perl's iron content, HO1 expression, and blood brain barrier dysfunction, but no difference in brain Hb content, astrogliosis and angiogenesis/neovascularization. At the later endpoint, the young cohort displays 27.8 ± 9.3% less brain damage, while no difference is seen with the aged cohort. For both cohorts, no differences are seen in HO1 levels or iron accumulation, but young Hp-/- mice display less thalamic astrogliosis and striatal microgliosis. This study reveals that the presence or absence of Hp exerts important time- and age-dependent influences on ICH outcomes.
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Affiliation(s)
- Jenna L Leclerc
- Department of Anesthesiology, University of Florida, Gainesville, FL, United States of America; Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America
| | - Chris Li
- Department of Anesthesiology, University of Florida, Gainesville, FL, United States of America
| | - Stacy Jean
- Department of Anesthesiology, University of Florida, Gainesville, FL, United States of America
| | - Andrew S Lampert
- Department of Anesthesiology, University of Florida, Gainesville, FL, United States of America
| | - Claudia Loyola Amador
- Department of Anesthesiology, University of Florida, Gainesville, FL, United States of America
| | - Matthew A Diller
- Department of Anesthesiology, University of Florida, Gainesville, FL, United States of America
| | - Emanuela Tolosano
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Sylvain Doré
- Department of Anesthesiology, University of Florida, Gainesville, FL, United States of America; Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America; Departments of Neurology, Psychiatry, and Pharmaceutics, University of Florida, Gainesville, FL, United States of America.
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8
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Lu DY, Lin CP, Wu CH, Cheng TM, Pan JP. Plasma haptoglobin level can augment NT-proBNP to predict poor outcome in patients with severe acute decompensated heart failure. J Investig Med 2018; 67:20-27. [PMID: 30287475 DOI: 10.1136/jim-2018-000710] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2018] [Indexed: 12/31/2022]
Abstract
To evaluate the use of plasma haptoglobin (Hp) levels and N-terminal pro-B-type natriuretic peptide (NT-proBNP) in predicting survival in patients with severe acute decompensated heart failure (AHF). Management of AHF is challenging. Identifying markers associated with patient prognosis in this disease is clinically important. In this prospective observational study, plasma Hp and NT-proBNP levels were measured. Receiver operating characteristic (ROC) curves were used to identify cut-offs of Hp and NT-proBNP with the greatest specificity and sensitivity for predicting overall survival and cardiovascular-related survival. The cut-off values were tested in patients with AHF (n=41). The cut-off value with the greatest specificity and sensitivity with respect to overall survival and for cardiovascular-related survival for Hp was 177. 1 ng/mL for both outcomes and for NT-proBNP was 34 246.0 pg/mL and 11 848.5 ng/mL, respectively. Using these cut-off values, this study found that patients with lower baseline Hp levels (<177. 1 ng/mL) or higher baseline NT-proBNP (≥34 246 pg/mL) were more likely to have shorter overall survival. Similarly, patients with <177. 1 ng/mL of Hp and ≥11 848.5 pg/mL of NT-proBNP had the highest risk of death related to cardiovascular disease. Our findings indicate that Hp and NT-proBNP using specific cut-off values for AHF can be used to determine risk of survival in these patients.
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Affiliation(s)
- Dai-Yin Lu
- Divisionof Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.,Schoolof Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chih-Pei Lin
- Institute of Biotechnology in Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Section of Central Laboratory, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Cheng-Hsueh Wu
- Schoolof Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Department of Critical Care, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology Taipei Medical University, Taipei, Taiwan, ROC
| | - Ju-Pin Pan
- Divisionof Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.,Schoolof Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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Putman A, Brown J, Gandy J, Wisnieski L, Sordillo L. Changes in biomarkers of nutrient metabolism, inflammation, and oxidative stress in dairy cows during the transition into the early dry period. J Dairy Sci 2018; 101:9350-9359. [DOI: 10.3168/jds.2018-14591] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 06/04/2018] [Indexed: 12/29/2022]
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10
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Pontone G, Andreini D, Guaricci AI, Guglielmo M, Baggiano A, Muscogiuri G, Fusini L, Fazzari F, Berzovini C, Pasquini A, Mushtaq S, Conte E, Cosentino N, Rabbat MG, Marenzi G, Bartorelli AL, Pepi M, Tremoli E, Banfi C. Association Between Haptoglobin Phenotype and Microvascular Obstruction in Patients With STEMI: A Cardiac Magnetic Resonance Study. JACC Cardiovasc Imaging 2018; 12:1007-1017. [PMID: 29680345 DOI: 10.1016/j.jcmg.2018.03.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 03/06/2018] [Accepted: 03/07/2018] [Indexed: 12/18/2022]
Abstract
OBJECTIVES This study aimed to evaluate the correlation between different haptoglobin (Hp) phenotypes and myocardial infarction characteristics as detected by cardiac magnetic resonance (CMR) in consecutive patients after ST-segment elevation myocardial infarction (STEMI). BACKGROUND Hp is a plasma protein that prevents iron-mediated oxidative tissue damage. CMR has emerged as the gold standard technique to detect left ventricular ejection fraction (LVEF), extent of scar with late gadolinium enhancement (LGE) technique, microvascular obstruction (MVO), and myocardial hemorrhage (MH) in patients with STEMI treated by primary percutaneous coronary intervention (pPCI). METHODS A total of 145 consecutive STEMI patients (mean age 62.2 ± 10.3 years; 78% men) were prospectively enrolled and underwent Hp phenotyping and CMR assessment within 1 week after STEMI. RESULTS CMR showed an area at risk (AAR) involving 26.6 ± 19.1% of left ventricular (LV) mass with a late LGE extent of 15.2 ± 13.1% of LV mass. MVO and MH occurred in 38 (26%) and 12 (8%) patients, respectively. Hp phenotypes 1-1, 2-1, 2-2 were observed in 15 (10%), 62 (43%), and 68 (47%), respectively. Multivariable analysis demonstrated that body mass index, Hp2-2, diabetes, and peak troponin I were independent predictors of MVO with Hp2-2 associated with the highest odds ratio (OR) (OR: 5.5 [95% confidence interval [CI]: 2.1 to 14.3; p < 0.001]). Hp2-2 significantly predicted both the presence (area under the curve [AUC]: 0.63 [95% CI: 0.53 to 0.72; p = 0.008]) and extent of MVO (AUC: 0.63 [95% CI: 0.54 to 0.72; p = 0.007]). CONCLUSIONS Hp phenotype is an independent predictor of MVO. Therefore, Hp phenotyping could be used for risk stratification and may be useful in assessing new therapies to reduce myocardial reperfusion injury in patients with STEMI.
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Affiliation(s)
| | - Daniele Andreini
- Centro Cardiologico Monzino, IRCCS, Milan, Italy; Department of Cardiovascular Sciences and Community Health, University of Milan, Milan, Italy
| | - Andrea I Guaricci
- Institute of Cardiovascular Disease, Department of Emergency and Organ Transplantation, University Hospital "Policlinico" of Bari, Bari, Italy; Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | | | | | | | - Laura Fusini
- Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Fabio Fazzari
- Department of Cardiology, University Hospital P. Giaccone, Palermo, Italy
| | - Claudio Berzovini
- Department of Surgical Sciences, Radiology Institute, University of Turin, Turin, Italy
| | - Annalisa Pasquini
- Department of Cardiology, "La Sapienza" University of Rome, Rome, Italy
| | | | | | | | - Mark G Rabbat
- Loyola University of Chicago, Chicago, Illinois; Edward Hines Jr. VA Hospital, Hines, Illinois
| | | | - Antonio L Bartorelli
- Centro Cardiologico Monzino, IRCCS, Milan, Italy; Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Milan, Italy
| | - Mauro Pepi
- Centro Cardiologico Monzino, IRCCS, Milan, Italy
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Leenders GJ, Smeets MB, van den Boomen M, Berben M, Nabben M, van Strijp D, Strijkers GJ, Prompers JJ, Arslan F, Nicolay K, Vandoorne K. Statins Promote Cardiac Infarct Healing by Modulating Endothelial Barrier Function Revealed by Contrast-Enhanced Magnetic Resonance Imaging. Arterioscler Thromb Vasc Biol 2017; 38:186-194. [PMID: 29146749 DOI: 10.1161/atvbaha.117.310339] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 10/24/2017] [Indexed: 01/13/2023]
Abstract
OBJECTIVE The endothelium has a crucial role in wound healing, acting as a barrier to control transit of leukocytes. Endothelial barrier function is impaired in atherosclerosis preceding myocardial infarction (MI). Besides lowering lipids, statins modulate endothelial function. Here, we noninvasively tested whether statins affect permeability at the inflammatory (day 3) and the reparative (day 7) phase of infarct healing post-MI using contrast-enhanced cardiac magnetic resonance imaging (MRI). APPROACH AND RESULTS Noninvasive permeability mapping by MRI after MI in C57BL/6, atherosclerotic ApoE-/-, and statin-treated ApoE-/- mice was correlated to subsequent left ventricular outcome by structural and functional cardiac MRI. Ex vivo histology, flow cytometry, and quantitative polymerase chain reaction were performed on infarct regions. Increased vascular permeability at ApoE-/- infarcts was observed compared with C57BL/6 infarcts, predicting enhanced left ventricular dilation at day 21 post-MI by MRI volumetry. Statin treatment improved vascular barrier function at ApoE-/- infarcts, indicated by reduced permeability. The infarcted tissue of ApoE-/- mice 3 days post-MI displayed an unbalanced Vegfa(vascular endothelial growth factor A)/Angpt1 (angiopoetin-1) expression ratio (explaining leakage-prone vessels), associated with higher amounts of CD45+ leukocytes and inflammatory LY6Chi monocytes. Statins reversed the unbalanced Vegfa/Angpt1 expression, normalizing endothelial barrier function at the infarct and blocking the augmented recruitment of inflammatory leukocytes in statin-treated ApoE-/- mice. CONCLUSIONS Statins lowered permeability and reduced the transit of unfavorable inflammatory leukocytes into the infarcted tissue, consequently improving left ventricular outcome.
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Affiliation(s)
- Geert J Leenders
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Mirjam B Smeets
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Maaike van den Boomen
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Monique Berben
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Miranda Nabben
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Dianne van Strijp
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Gustav J Strijkers
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Jeanine J Prompers
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Fatih Arslan
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Klaas Nicolay
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.)
| | - Katrien Vandoorne
- From the Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, The Netherlands (G.J.L., M.v.d.B., M.N., G.J.S., J.J.P., K.N., K.V.); Laboratory of Experimental Cardiology (M.B.S.) and Department of Cardiology (F.A.), University Medical Center Utrecht, The Netherlands; Department Precision and Decentralized Diagnostics, Philips Research Eindhoven, The Netherlands (M.B., D.v.S.); Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands (G.J.S.); and Department of Cardiology, St. Antonius Hospital Nieuwegein, The Netherlands (F.A.).
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Shen H, Heuzey E, Mori DN, Wong CK, Colangelo CM, Chung LM, Bruce C, Slizovskiy IB, Booth CJ, Kreisel D, Goldstein DR. Haptoglobin enhances cardiac transplant rejection. Circ Res 2015; 116:1670-9. [PMID: 25801896 DOI: 10.1161/circresaha.116.305406] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 03/23/2015] [Indexed: 11/16/2022]
Abstract
RATIONALE Early graft inflammation enhances both acute and chronic rejection of heart transplants, but it is unclear how this inflammation is initiated. OBJECTIVE To identify specific inflammatory modulators and determine their underlying molecular mechanisms after cardiac transplantation. METHODS AND RESULTS We used a murine heterotopic cardiac transplant model to identify inflammatory modulators of early graft inflammation. Unbiased mass spectrometric analysis of cardiac tissue before and ≤72 hours after transplantation revealed that 22 proteins including haptoglobin, a known antioxidant, are significantly upregulated in our grafts. Through the use of haptoglobin-deficient mice, we show that 80% of haptoglobin-deficient recipients treated with perioperative administration of the costimulatory blocking agent CTLA4 immunoglobulin exhibited >100-day survival of full major histocompatibility complex mismatched allografts, whereas all similarly treated wild-type recipients rejected their transplants by 21 days after transplantation. We found that haptoglobin modifies the intra-allograft inflammatory milieu by enhancing levels of the inflammatory cytokine interleukin-6 and the chemokine MIP-2 (macrophage inflammatory protein 2) but impair levels of the immunosuppressive cytokine interleukin-10. Haptoglobin also enhances dendritic cell graft recruitment and augments antidonor T-cell responses. Moreover, we confirmed that the protein is present in human cardiac allograft specimens undergoing acute graft rejection. CONCLUSIONS Our findings provide new insights into the mechanisms of inflammation after cardiac transplantation and suggest that, in contrast to its prior reported antioxidant function in vascular inflammation, haptoglobin is an enhancer of inflammation after cardiac transplantation. Haptoglobin may also be a key component in other sterile inflammatory conditions.
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Affiliation(s)
- Hua Shen
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Elizabeth Heuzey
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Daniel N Mori
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Christine K Wong
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Christopher M Colangelo
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Lisa M Chung
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Can Bruce
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Ilya B Slizovskiy
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Carmen J Booth
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Daniel Kreisel
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO
| | - Daniel R Goldstein
- From the Department of Internal Medicine (H.S., E.H., D.N.M., C.K.W., D.R.G.), Department of Immunobiology (H.S., D.N.M., C.K.W., D.R.G.), W.M. Keck Biotechnology Resource Laboratory (C.M.C., L.M.C.), Center for Medical Informatics (C.B.), and Section of Comparative Medicine (I.B.S., C.J.B.), Yale School of Medicine, New Haven, CT; Sciomix, Woodbridge, CT (C.B.); Department of Surgery (D.K.) and Department of Immunology (D.K.), Washington University School of Medicine, St Louis, MO.
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Crosstalk between red blood cells and the immune system and its impact on atherosclerosis. BIOMED RESEARCH INTERNATIONAL 2015; 2015:616834. [PMID: 25722984 PMCID: PMC4334626 DOI: 10.1155/2015/616834] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 01/16/2015] [Indexed: 12/21/2022]
Abstract
Atherosclerosis is a chronic multifactorial disease of the arterial wall characterized by inflammation, oxidative stress, and immune system activation. Evidence exists on a pathogenic role of oxidized red blood cells (RBCs) accumulated in the lesion after intraplaque hemorrhage. This review reports current knowledge on the impact of oxidative stress in RBC modifications with the surface appearance of senescent signals characterized by reduced expression of CD47 and glycophorin A and higher externalization of phosphatidylserine. The review summarizes findings indicating that oxidized, senescent, or stored RBCs, due to surface antigen modification and release of prooxidant and proinflammatory molecules, exert an impaired modulatory activity on innate and adaptive immune cells and how this activity contributes to atherosclerotic disease. In particular RBCs from patients with atherosclerosis, unlike those from healthy subjects, fail to control lipopolysaccharide-induced DC maturation and T lymphocyte apoptosis. Stored RBCs, accompanied by shedding of extracellular vesicles, stimulate peripheral blood mononuclear cells to release proinflammatory cytokines, augment mitogen-driven T cell proliferation, and polarize macrophages toward the proinflammatory M1 activation pathway. Collectively, literature data suggest that the crosstalk between RBCs with immune cells represents a novel mechanism by which oxidative stress can contribute to atherosclerotic disease progression and may be exploited for therapeutic interventions.
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Liu XF, Yu JQ, Dalan R, Liu AQ, Luo KQ. Biological factors in plasma from diabetes mellitus patients enhance hyperglycaemia and pulsatile shear stress-induced endothelial cell apoptosis. Integr Biol (Camb) 2014; 6:511-22. [PMID: 24643402 DOI: 10.1039/c3ib40265g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
People suffering from Diabetes Mellitus (DM) are prone to an array of vascular complications leading to end organ damage. The hallmark of these vascular complications is endothelium dysfunction, which is caused by endothelial cell (EC) apoptosis. Although the endothelial cell (EC) dysfunction induced by hyperglycaemia and fluid shear stress has been studied, the effects of biological factors in the blood of DM patients on EC integrity have not been reported in the in vitro models that mimic the physiological pulsatile nature of the vascular system. This study reports the development of a hemodynamic lab-on-a-chip system to investigate this issue. The pulsatile flow was applied to a monolayer of endothelial cells expressing a fluorescence resonance energy transfer (FRET)-based biosensor that changes colour from green to blue in response to caspase-3 activation during apoptosis. Plasma samples from healthy volunteers and DM patients were compared to identify biological factors that are critical to endothelial disruption. Three types of microchannels were designed to simulate the blood vessels under healthy and partially blocked pathological conditions. The results showed that EC apoptosis rates increased with increasing glucose concentration and levels of shear stress. The rates of apoptosis further increased by a factor of 1.4-2.3 for hyperglycaemic plasma under all dynamic conditions. Under static conditions, little difference was detected in the rate of EC apoptosis between experiments using plasma from DM patients and glucose medium, suggesting that the effects of hyperglycaemia and biological factors on the induction of EC apoptosis are all shear flow-dependent. A proteomics study was then conducted to identify biological factors, demonstrating that the levels of eight proteins, including haptoglobin and clusterin, were significantly down-regulated, while six proteins, including apolipoprotein C-III, were significantly up-regulated in the plasma of DM patients compared to healthy volunteers. This hemodynamic lab-on-a-chip system can serve as a high throughput platform to assess the risk of vascular complications of DM patients and to determine the effects of therapeutics or other interventions on EC apoptosis.
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Affiliation(s)
- X F Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457.
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