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Wang H, Slotabec L, Didik S, Li Z, Leng L, Zhao B, Bucala R, Li J. A small molecule macrophage migration inhibitory factor agonist ameliorates age-related myocardial intolerance to ischemia-reperfusion insults via metabolic regulation. Metabolism 2024; 153:155792. [PMID: 38232801 DOI: 10.1016/j.metabol.2024.155792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/27/2023] [Accepted: 01/09/2024] [Indexed: 01/19/2024]
Abstract
Macrophage migration inhibitory factor (MIF) is an innate cytokine that regulates both inflammatory and homeostatic responses. MIF is expressed by cardiomyocytes, where it exerts a protective action against ischemia-reperfusion (I/R) injury by activating AMP-activated protein kinase (AMPK). This effect is attenuated in the senescent heart due to an intrinsic, age-related reduction in MIF expression. We hypothesized that treating the aged heart with the small molecule MIF agonist (MIF20) can reinforce protective MIF signaling in cardiomyocytes, leading to a beneficial effect against I/R stress. The administration of MIF20 at the onset of reperfusion was found to not only decrease myocardial infarct size but also preserves systolic function in the aged heart. Protection from I/R injury was reduced in mice with cardiomyocyte-specific Mif deletion, consistent with the mechanism of action of MIF20 to allosterically increase MIF affinity for its cognate receptor CD74. We further found MIF20 to contribute to the maintenance of mitochondrial fitness and to preserve the contractile properties of aged cardiomyocytes under hypoxia/reoxygenation. MIF20 augments protective metabolic responses by reducing the NADH/NAD ratio, leading to a decrease in the accumulation of reactive oxygen species (ROS) in the aged myocardium under I/R stress. We also identify alterations in the expression levels of the downstream effectors PDK4 and LCAD, which participate in the remodeling of the cardiac metabolic profile. Data from this study demonstrates that pharmacologic augmentation of MIF signaling provides beneficial homeostatic actions on senescent myocardium under I/R stress.
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Affiliation(s)
- Hao Wang
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States of America
| | - Lily Slotabec
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States of America
| | - Steven Didik
- Department of Surgery, University of South Florida, FL 33612, United States of America
| | - Zehui Li
- Department of Surgery, University of South Florida, FL 33612, United States of America
| | - Lin Leng
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, United States of America
| | - Bi Zhao
- Genomics Program, College of Public Health, University of South Florida, Tampa, FL 33612, United States of America.
| | - Richard Bucala
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, United States of America
| | - Ji Li
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States of America; G.V. (Sonny) Montgomery VA Medical Center, Jackson, MS 39216, United States of America.
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Fang Z, Lee H, Liu J, Wong KA, Brown LM, Li X, Xiaoli AM, Yang F, Zhang M. Complement C3 Reduces Apoptosis via Interaction with the Intrinsic Apoptotic Pathway. Cells 2023; 12:2282. [PMID: 37759504 PMCID: PMC10528058 DOI: 10.3390/cells12182282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Myocardial ischemia/reperfusion (I/R) elicits an acute inflammatory response involving complement factors. Recently, we reported that myocardial necrosis was decreased in complement C3-/- mice after heart I/R. The current study used the same heart model to test the effect of C3 on myocardial apoptosis and investigated if C3 regulation of apoptosis occurred in human cardiomyocytes. Comparative proteomics analyses found that cytochrome c was present in the myocardial C3 complex of WT mice following I/R. Incubation of exogenous human C3 reduced apoptosis in a cell culture system of human cardiomyocytes that did not inherently express C3. In addition, human C3 inhibited the intrinsic apoptosis pathway in a cell-free apoptosis system. Finally, human pro-C3 was found to bind with an apoptotic factor, pro-caspase 3, in a cell-free system. Thus, we present firsthand evidence showing that C3 readily reduces myocardial apoptosis via interaction with the intrinsic apoptotic pathway.
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Affiliation(s)
- Zhou Fang
- Departments of Anesthesiology, SUNY Downstate Health Science University, 450 Clarkson Avenue, Brooklyn, NY 11203, USA; (Z.F.); (H.L.); (J.L.); (K.A.W.); (X.L.)
| | - Haekyung Lee
- Departments of Anesthesiology, SUNY Downstate Health Science University, 450 Clarkson Avenue, Brooklyn, NY 11203, USA; (Z.F.); (H.L.); (J.L.); (K.A.W.); (X.L.)
| | - Junying Liu
- Departments of Anesthesiology, SUNY Downstate Health Science University, 450 Clarkson Avenue, Brooklyn, NY 11203, USA; (Z.F.); (H.L.); (J.L.); (K.A.W.); (X.L.)
| | - Karen A. Wong
- Departments of Anesthesiology, SUNY Downstate Health Science University, 450 Clarkson Avenue, Brooklyn, NY 11203, USA; (Z.F.); (H.L.); (J.L.); (K.A.W.); (X.L.)
| | - Lewis M. Brown
- Quantitative Proteomics and Metabolomics Center, Department of Biological Sciences, Columbia University, New York, NY 10027, USA;
| | - Xiang Li
- Departments of Anesthesiology, SUNY Downstate Health Science University, 450 Clarkson Avenue, Brooklyn, NY 11203, USA; (Z.F.); (H.L.); (J.L.); (K.A.W.); (X.L.)
| | - Alus M. Xiaoli
- Department of Medicine/Endocrinology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (A.M.X.); (F.Y.)
| | - Fajun Yang
- Department of Medicine/Endocrinology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (A.M.X.); (F.Y.)
| | - Ming Zhang
- Departments of Anesthesiology, SUNY Downstate Health Science University, 450 Clarkson Avenue, Brooklyn, NY 11203, USA; (Z.F.); (H.L.); (J.L.); (K.A.W.); (X.L.)
- Departments of Cell Biology, SUNY Downstate Health Science University, 450 Clarkson Avenue, Brooklyn, NY 11203, USA
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3
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Peng H, Zhang J, Zhang Z, Turdi S, Han X, Liu Q, Hu H, Ye H, Dong M, Duan Y, Yang Y, Ashrafizadeh M, Rabiee N, Ren J. Cardiac-specific overexpression of catalase attenuates lipopolysaccharide-induced cardiac anomalies through reconciliation of autophagy and ferroptosis. Life Sci 2023:121821. [PMID: 37257582 DOI: 10.1016/j.lfs.2023.121821] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/02/2023]
Abstract
Lipopolysaccharide (LPS) from Gram-negative bacteria is a major contributor to cardiovascular failure, but the signaling mechanisms underlying its stress response are not fully understood. This study aimed to investigate the effect of the antioxidant enzyme catalase on LPS-induced cardiac abnormalities and the mechanisms involved, with particular focus on the interplay between autophagy, ferroptosis, and apoptosis. Cardiac-specific catalase (CAT) overexpression and wild-type (WT) mice were stimulated with LPS (6 mg/kg, intravenous injection), and cardiac morphology and function were evaluated. Oxidative stress, ferroptosis, apoptosis, and mitochondrial status were monitored, and survival curves were plotted based on the results of LPS stimulation. The results showed that, compared with WT mice, mice overexpressing catalase had a higher survival rate under LPS stimulation. Ultrasound echocardiography, cardiomyocyte characteristics, and Masson's trichrome staining showed that LPS inhibited cardiac function and caused cardiac fibrosis, while catalase alleviated these adverse effects. LPS increased apoptosis (TUNEL, caspase-3 activation, cleaved caspase-3), increased O2·- production, induced inflammation (TNF-α), autophagy, iron toxicity, and carbonyl damage, and significantly damaged mitochondria (mitochondrial membrane potential, mitochondrial proteins, and ultrastructure). These effects were significantly alleviated by catalase. Interestingly, the antioxidant N-acetylcysteine, autophagy inhibitor 3-methyladenine, and ferroptosis inhibitor lipostatin-1 all eliminated the LPS-induced contraction dysfunction and ferroptosis (using lipid peroxidation). Induction of ferroptosis could eliminate the cardioprotective effect of NAC. In conclusion, catalase rescues LPS-induced cardiac dysfunction by regulating oxidative stress, autophagy, ferroptosis, apoptosis, and mitochondrial damage in cardiomyocytes.
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Affiliation(s)
- Hu Peng
- Department of Emergency, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China.
| | - Ji Zhang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
| | - Zhonglin Zhang
- Department of Emergency, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
| | - Subat Turdi
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Xuefeng Han
- Department of Physiology, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Qiong Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences and Medicine, Northwest University, Xi'an, Shaanxi 710069, China
| | - Huantao Hu
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hua Ye
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; Department of Burns & Plastic and Wound Repair, Ganzhou People's Hospital, Ganzhou, Jiangxi 341000, China
| | - Maolong Dong
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yu Duan
- Department of Cardiology, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Life Sciences and Medicine, Northwest University, Xi'an, Shaanxi 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, School of Life Sciences and Medicine, Northwest University, Xi'an, Shaanxi 710069, China
| | - Milad Ashrafizadeh
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai 200032, China; Department of General Surgery and Institute of Precision Diagnosis and Treatment of Digestive System Tumors, Carson International Cancer Center, Shenzhen University General Hospital, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - Navid Rabiee
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA 6150, Australia
| | - Jun Ren
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai 200032, China.
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4
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Fang Z, Li X, Liu J, Lee H, Salciccioli L, Lazar J, Zhang M. The role of complement C3 in the outcome of regional myocardial infarction. Biochem Biophys Rep 2023; 33:101434. [PMID: 36748063 PMCID: PMC9898614 DOI: 10.1016/j.bbrep.2023.101434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023] Open
Abstract
Coronary heart disease leading to myocardial ischemia is a major cause of heart failure. A hallmark of heart failure is myocardial fibrosis. Using a murine model of myocardial ischemia/reperfusion injury (IRI), we showed that, following IRI, in mice genetically deficient in the central factor of complement system, C3, myocardial necrosis was reduced compared with WT mice. Four weeks after the ischemic period, the C3-/- mice had significantly less cardiac fibrosis and better cardiac function than the WT controls. Overall, our results suggest that innate immune response through complement C3 plays an important role in necrotic cell death, which contributes to the cardiac fibrosis that underlies post-infarction heart failure.
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Affiliation(s)
| | - Xiang Li
- Department of Anesthesiology, USA
| | | | | | - Louis Salciccioli
- Department of Medicine, SUNY Downstate Health Science University, 450 Clarkson Avenue, Brooklyn, NY, 11203, USA
| | - Jason Lazar
- Department of Medicine, SUNY Downstate Health Science University, 450 Clarkson Avenue, Brooklyn, NY, 11203, USA
| | - Ming Zhang
- Department of Anesthesiology, USA,Department of Cell Biology, USA,Corresponding author. Department of Anesthesiology, MSC6 SUNY Downstate Health Science University, 450 Clarkson Avenue Brooklyn, NY, 11203, USA.
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Destructive Effects of Pyroptosis on Homeostasis of Neuron Survival Associated with the Dysfunctional BBB-Glymphatic System and Amyloid-Beta Accumulation after Cerebral Ischemia/Reperfusion in Rats. Neural Plast 2021; 2021:4504363. [PMID: 34434229 PMCID: PMC8382555 DOI: 10.1155/2021/4504363] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/04/2021] [Accepted: 07/30/2021] [Indexed: 12/12/2022] Open
Abstract
Neuroinflammation-related amyloid-beta peptide (Aβ) accumulation after cerebral ischemia/reperfusion (I/R) accounts for cerebral I/R injuries and poststroke dementia. Recently, pyroptosis, a proinflammatory cell death, has been identified as a crucial pathological link of cerebral I/R injuries. However, whether pyroptosis acts as a trigger of Aβ accumulation after cerebral I/R has not yet been demonstrated. Blood-brain barrier (BBB) and glymphatic system mediated by aquaporin-4 (AQP-4) on astrocytic endfeet are important pathways for the clearance of Aβ in the brain, and pyroptosis especially occurring in astrocytes after cerebral I/R potentially damages BBB integrity and glymphatic function and thus influences Aβ clearance and brain homeostasis. In present study, the method of middle cerebral artery occlusion/reperfusion (MCAO/R) was used for building models of focal cerebral I/R injuries in rats. Then, we used lipopolysaccharide and glycine as the agonist and inhibitor of pyroptosis, respectively, Western blotting for detections of pyroptosis, AQP-4, and Aβ1-42 oligomers, laser confocal microscopy for observations of pyroptosis and Aβ locations, and immunohistochemical stainings of SMI 71 (a specific marker for BBB integrity)/AQP-4 and Nissl staining for evaluating, respectively, BBB-glymphatic system and neuronal damage. The results showed that pyroptosis obviously promoted the loss of BBB integrity and AQP-4 polarization, brain edema, Aβ accumulation, and the formation of Aβ1-42 oligomers and thus increased neuronal damage after cerebral I/R. However, glycine could inhibit cerebral I/R-induced pyroptosis by alleviating cytomembrane damage and downregulating expression levels of cleaved caspase-11/1, N-terminal gasdermin D, NLRP3 (nucleotide-binding domain, leucine-rich repeat containing protein 3), interleukin-6 (IL-6) and IL-1β and markedly abate above pathological changes. Our study revealed that pyroptosis is a considerable factor causing toxic Aβ accumulation, dysfunctional BBB-glymphatic system, and neurological deficits after cerebral I/R, suggesting that targeting pyroptosis is a potential strategy for the prevention of ischemic stroke sequelae including dementia.
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Zhong J, Yang D, Zhou Y, Liang M, Ai Y. Multi-frequency single cell electrical impedance measurement for label-free cell viability analysis. Analyst 2021; 146:1848-1858. [PMID: 33619511 DOI: 10.1039/d0an02476g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cell viability is a physiological status connected to cell membrane integrity and cytoplasmic topography, which is profoundly important for fundamental biological research and practical biomedical applications. A conventional method for assessing cell viability is through cell staining analysis. However, cell staining involves laborious and complicated processing procedures and is normally cytotoxic. Intrinsic cellular phenotypes thus provide new avenues for measuring cell viability in a stain-free and non-toxic manner. In this work, we present a label-free non-destructive impedance-based approach for cell viability assessment by simultaneously characterizing multiple electrical cellular phenotypes in a high-throughput manner (>1000 cells per min). A novel concept called the complex opacity spectrum is introduced for improving the discrimination of live and dead cells. The analysis of the complex opacity spectrum leads to the discovery of two frequency ranges that are optimized for characterizing membranous and cytoplasmic electrical phenotypes. The present impedance-based approach has successfully discriminated between living and dead cells in two different experimental scenarios, including mixed living and dead cells in both homogenous and heterogeneous cell samples. This impedance-based single cell phenotyping technique provides highly accurate and consistent cell viability analysis, which has been validated by commercial fluorescence-based flow cytometry (∼1% difference) using heterogeneous cell samples. This label-free high-throughput cell viability analysis strategy will have broad applications in the field of biology and medicine.
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Affiliation(s)
- Jianwei Zhong
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore.
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7
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Zhao Z, Tang Z, Zhang W, Liu J, Li B, Ding S. Inactivated pseudomonas aeruginosa protects against myocardial ischemia reperfusion injury via Nrf2 and HO-1. Exp Ther Med 2020; 19:3362-3368. [PMID: 32266034 DOI: 10.3892/etm.2020.8605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 06/27/2019] [Indexed: 12/22/2022] Open
Abstract
The current study investigated the protective effects of inactivated pseudomonas aeruginosa (IPA) on myocardial ischemia reperfusion injury (MIR/I) and the mechanisms governing this interaction. Left anterior descending coronary artery ligation was performed on rats for 30 min and reperfusion was performed for a subsequent 2 h. Rat hearts were obtained and the myocardial infarction area was determined using nitroblue tetrazolium. Myocardial cell apoptosis was determined using flow cytometry. Malondialdehyde (MDA) content, lactate dehydrogenase (LDH) activity, superoxide dismutase (SOD) activity and catalase (CAT) activities were assayed using the corresponding kits. Additionally, nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase 1 (HO-1) were assayed using western blot and immunofluorescence analysis. When compared with the model group, the results of IPA treatment revealed improved heart function, reduced myocardial infarction area and reduced endothelial cell apoptosis, which led to decreased LDH and MDA levels, and increased SOD and CAT levels in serum, and decreased LDH and MDA levels and increased SOD and CAT in myocardial tissues. Moreover, increased Nrf2 and HO-1 expression levels in the myocardial tissues were also observed at all concentrations of IPA. It was concluded that IPA pretreatment ameliorated MIR/I and reduced endothelial apoptosis and oxidative stress via the Nrf2/HO-1 pathway.
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Affiliation(s)
- Zhigang Zhao
- Emergency Department, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
| | - Zhongzhi Tang
- Emergency Department, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
| | - Wenkai Zhang
- Emergency Department, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
| | - Jie Liu
- Emergency Department, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
| | - Bo Li
- Emergency Department, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
| | - Shifang Ding
- Cardiovascular Department, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
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Riley A, Green V, Cheah R, McKenzie G, Karsai L, England J, Greenman J. A novel microfluidic device capable of maintaining functional thyroid carcinoma specimens ex vivo provides a new drug screening platform. BMC Cancer 2019; 19:259. [PMID: 30902086 PMCID: PMC6429713 DOI: 10.1186/s12885-019-5465-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 03/13/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Though the management of malignancies has improved vastly in recent years, many treatment options lack the desired efficacy and fail to adequately augment patient morbidity and mortality. It is increasingly clear that patient response to therapy is unique to each individual, necessitating personalised, or 'precision' medical care. This demand extends to thyroid cancer; ~ 10% patients fail to respond to radioiodine treatment due to loss of phenotypic differentiation, exposing the patient to unnecessary ionising radiation, as well as delaying treatment with alternative therapies. METHODS Human thyroid tissue (n = 23, malignant and benign) was live-sliced (5 mm diameter × 350-500 μm thickness) then analysed or incorporated into a microfluidic culture device for 96 h (37 °C). Successful maintenance of tissue was verified by histological (H&E), flow cytometric propidium iodide or trypan blue uptake, immunohistochemical (Ki67 detection/ BrdU incorporation) and functional analysis (thyroxine [T4] output) in addition to analysis of culture effluent for the cell death markers lactate dehydrogenase (LDH) and dead-cell protease (DCP). Apoptosis was investigated by Terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL). Differentiation was assessed by evaluation of thyroid transcription factor (TTF1) and sodium iodide symporter (NIS) expression (western blotting). RESULTS Maintenance of gross tissue architecture was observed. Analysis of dissociated primary thyroid cells using flow cytometry both prior to and post culture demonstrated no significant change in the proportion of viable cells. LDH and DCP release from on-chip thyroid tissue indicated that after an initial raised level of release, signifying cellular damage, detectable levels dropped markedly. A significant increase in apoptosis (p < 0.01) was observed after tissue was perfused with etoposide and JNK inhibitor, but not in control tissue incubated for the same time period. No significant difference in Ki-67 positivity or TTF1/NIS expression was detected between fresh and post-culture thyroid tissue samples, moreover BrdU positive nuclei indicated on-chip cellular proliferation. Cultured thyroid explants were functionally viable as determined by production of T4 throughout the culture period. CONCLUSIONS The described microfluidic platform can maintain the viability of thyroid tissue slices ex vivo for a minimum of four days, providing a platform for the assessment of thyroid tissue radioiodine sensitivity/adjuvant therapies in real time.
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Affiliation(s)
- Andrew Riley
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
| | - Victoria Green
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
| | - Ramsah Cheah
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
| | - Gordon McKenzie
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
- Hull York Medical School, University of Hull, Kingston upon Hull, HU6 7RX UK
| | - Laszlo Karsai
- Hull and East Yorkshire Hospitals NHS Trust, Kingston upon Hull, HU16 5JQ UK
| | - James England
- Hull and East Yorkshire Hospitals NHS Trust, Kingston upon Hull, HU16 5JQ UK
| | - John Greenman
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
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McElhanon KE, Bhattacharya S. Altered membrane integrity in the progression of muscle diseases. Life Sci 2017; 192:166-172. [PMID: 29183798 DOI: 10.1016/j.lfs.2017.11.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/12/2017] [Accepted: 11/22/2017] [Indexed: 12/27/2022]
Abstract
Sarcolemmal integrity is orchestrated through the interplay of preserving membrane strength and fast tracking the membrane repair process during an event of compromised membrane fragility. Several molecular players have been identified that act in a concerted fashion to maintain the barrier function of the muscle membrane. Substantial research findings in the field of muscle biology point out the importance of maintaining membrane integrity as a key contributory factor to cellular homeostasis. Innumerable data on the progression of membrane pathology associated with compromised muscle membrane integrity support targeting sarcolemmal integrity in skeletal and cardiac muscle as a model therapeutic strategy to alleviate some of the pathologic conditions. This review will discuss strategies that researchers have undertaken to compensate for an imbalance in sarcolemma membrane fragility and membrane repair to maintain muscle membrane integrity.
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Affiliation(s)
- Kevin E McElhanon
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, 473 W. 12th Ave, Columbus, OH 43210-1252, United States
| | - Sayak Bhattacharya
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, 473 W. 12th Ave, Columbus, OH 43210-1252, United States.
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10
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Chun N, Haddadin AS, Liu J, Hou Y, Wong KA, Lee D, Rushbrook JI, Gulaya K, Hines R, Hollis T, Nistal Nuno B, Mangi AA, Hashim S, Pekna M, Catalfamo A, Chin HY, Patel F, Rayala S, Shevde K, Heeger PS, Zhang M. Activation of complement factor B contributes to murine and human myocardial ischemia/reperfusion injury. PLoS One 2017; 12:e0179450. [PMID: 28662037 PMCID: PMC5491012 DOI: 10.1371/journal.pone.0179450] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 05/29/2017] [Indexed: 12/28/2022] Open
Abstract
The pathophysiology of myocardial injury that results from cardiac ischemia and reperfusion (I/R) is incompletely understood. Experimental evidence from murine models indicates that innate immune mechanisms including complement activation via the classical and lectin pathways are crucial. Whether factor B (fB), a component of the alternative complement pathway required for amplification of complement cascade activation, participates in the pathophysiology of myocardial I/R injury has not been addressed. We induced regional myocardial I/R injury by transient coronary ligation in WT C57BL/6 mice, a manipulation that resulted in marked myocardial necrosis associated with activation of fB protein and myocardial deposition of C3 activation products. In contrast, in fB-/- mice, the same procedure resulted in significantly reduced myocardial necrosis (% ventricular tissue necrotic; fB-/- mice, 20 ± 4%; WT mice, 45 ± 3%; P < 0.05) and diminished deposition of C3 activation products in the myocardial tissue (fB-/- mice, 0 ± 0%; WT mice, 31 ± 6%; P<0.05). Reconstitution of fB-/- mice with WT serum followed by cardiac I/R restored the myocardial necrosis and activated C3 deposition in the myocardium. In translational human studies we measured levels of activated fB (Bb) in intracoronary blood samples obtained during cardio-pulmonary bypass surgery before and after aortic cross clamping (AXCL), during which global heart ischemia was induced. Intracoronary Bb increased immediately after AXCL, and the levels were directly correlated with peripheral blood levels of cardiac troponin I, an established biomarker of myocardial necrosis (Spearman coefficient = 0.465, P < 0.01). Taken together, our results support the conclusion that circulating fB is a crucial pathophysiological amplifier of I/R-induced, complement-dependent myocardial necrosis and identify fB as a potential therapeutic target for prevention of human myocardial I/R injury.
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Affiliation(s)
- Nicholas Chun
- Nephrology Division, Department of Medicine and Translational Transplant Research Center, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Ala S. Haddadin
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Junying Liu
- Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
| | - Yunfang Hou
- Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
| | - Karen A. Wong
- Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
| | - Daniel Lee
- Department of Surgery, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
| | - Julie I. Rushbrook
- Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
| | - Karan Gulaya
- Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
| | - Roberta Hines
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Tamika Hollis
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Beatriz Nistal Nuno
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Abeel A. Mangi
- Department of Surgery, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Sabet Hashim
- Department of Surgery, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Marcela Pekna
- Department of Medical Chemistry and Cell Biology, Göteborg University, Göteborg, Sweden
| | - Amy Catalfamo
- Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
| | - Hsiao-ying Chin
- Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
| | - Foramben Patel
- Department of Biomedical Sciences, Long Island University, Brookville, New York, United States of America
| | - Sravani Rayala
- Department of Biomedical Sciences, Long Island University, Brookville, New York, United States of America
| | - Ketan Shevde
- Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
| | - Peter S. Heeger
- Nephrology Division, Department of Medicine and Translational Transplant Research Center, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Ming Zhang
- Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
- Department of Cell Biology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York, United States of America
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11
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On the value of therapeutic interventions targeting the complement system in acute myocardial infarction. Transl Res 2017; 182:103-122. [PMID: 27810412 DOI: 10.1016/j.trsl.2016.10.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 10/05/2016] [Accepted: 10/06/2016] [Indexed: 01/12/2023]
Abstract
The complement system plays an important role in the inflammatory response subsequent to acute myocardial infarction (AMI). The aim of this study is to create a systematic overview of studies that have investigated therapeutic administration of complement inhibitors in both AMI animal models and human clinical trials. To enable extrapolation of observations from included animal studies toward post-AMI clinical trials, ex vivo studies on isolated hearts and proof-of-principle studies on inhibitor administration before experimental AMI induction were excluded. Positive therapeutic effects in AMI animal models have been described for cobra venom factor, soluble complement receptor 1, C1-esterase inhibitor (C1-inh), FUT-175, C1s-inhibitor, anti-C5, ADC-1004, clusterin, and glycosaminoglycans. Two types of complement inhibitors have been tested in clinical trials, being C1-inh and anti-C5. Pexelizumab (anti-C5) did not result in reproducible beneficial effects for AMI patients. Beneficial effects were reported in AMI patients for C1-inhibitor, albeit in small patient groups. In general, despite the absence of consistent positive effects in clinical trials thus far, the complement system remains a potentially interesting target for therapy in AMI patients. Based on the study designs of previous animal studies and clinical trials, we discuss several issues which require attention in the design of future studies: adjustment of clinical trial design to precise mechanism of action of administered inhibitor, optimizing the duration of therapy, and optimization of time point(s) on which therapeutic effects will be evaluated.
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12
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Abstract
Ischemic disorders, such as myocardial infarction, stroke, and peripheral vascular disease, are the most common causes of debilitating disease and death in westernized cultures. The extent of tissue injury relates directly to the extent of blood flow reduction and to the length of the ischemic period, which influence the levels to which cellular ATP and intracellular pH are reduced. By impairing ATPase-dependent ion transport, ischemia causes intracellular and mitochondrial calcium levels to increase (calcium overload). Cell volume regulatory mechanisms are also disrupted by the lack of ATP, which can induce lysis of organelle and plasma membranes. Reperfusion, although required to salvage oxygen-starved tissues, produces paradoxical tissue responses that fuel the production of reactive oxygen species (oxygen paradox), sequestration of proinflammatory immunocytes in ischemic tissues, endoplasmic reticulum stress, and development of postischemic capillary no-reflow, which amplify tissue injury. These pathologic events culminate in opening of mitochondrial permeability transition pores as a common end-effector of ischemia/reperfusion (I/R)-induced cell lysis and death. Emerging concepts include the influence of the intestinal microbiome, fetal programming, epigenetic changes, and microparticles in the pathogenesis of I/R. The overall goal of this review is to describe these and other mechanisms that contribute to I/R injury. Because so many different deleterious events participate in I/R, it is clear that therapeutic approaches will be effective only when multiple pathologic processes are targeted. In addition, the translational significance of I/R research will be enhanced by much wider use of animal models that incorporate the complicating effects of risk factors for cardiovascular disease. © 2017 American Physiological Society. Compr Physiol 7:113-170, 2017.
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Affiliation(s)
- Theodore Kalogeris
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri, USA
| | - Christopher P. Baines
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri, USA
- Department of Biomedical Sciences, University of Missouri College of Veterinary Medicine, Columbia, Missouri, USA
| | - Maike Krenz
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri, USA
| | - Ronald J. Korthuis
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri, USA
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13
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Tang Y, Li S, Zhang P, Zhu J, Meng G, Xie L, Yu Y, Ji Y, Han Y. Soy Isoflavone Protects Myocardial Ischemia/Reperfusion Injury through Increasing Endothelial Nitric Oxide Synthase and Decreasing Oxidative Stress in Ovariectomized Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:5057405. [PMID: 27057277 PMCID: PMC4753344 DOI: 10.1155/2016/5057405] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/29/2015] [Accepted: 12/31/2015] [Indexed: 01/16/2023]
Abstract
There is a special role for estrogens in preventing and curing cardiovascular disease in women. Soy isoflavone (SI), a soy-derived phytoestrogen, has similar chemical structure to endogenous estrogen-estradiol. We investigate to elucidate the protective mechanism of SI on myocardial ischemia/reperfusion (MI/R) injury. Female SD rats underwent bilateral ovariectomy. One week later, rats were randomly divided into several groups, sham ovariectomy (control group), ovariectomy with MI/R, or ovariectomy with sham MI/R. Other ovariectomy rats were given different doses of SI or 17β-estradiol (E2). Four weeks later, they were exposed to 30 minutes of left coronary artery occlusion followed by 6 or 24 hours of reperfusion. SI administration significantly reduced myocardial infarct size and improved left ventricle function and restored endothelium-dependent relaxation function of thoracic aortas after MI/R in ovariectomized rats. SI also decreased serum creatine kinase and lactate dehydrogenase activity, reduced plasma malonaldehyde, and attenuated oxidative stress in the myocardium. Meanwhile, SI increased phosphatidylinositol 3 kinase (PI3K)/Akt/endothelial nitric oxide synthase (eNOS) signal pathway. SI failed to decrease infarct size of hearts with I/R in ovariectomized rats if PI3K was inhibited. Overall, these results indicated that SI protects myocardial ischemia/reperfusion injury in ovariectomized rats through increasing PI3K/Akt/eNOS signal pathway and decreasing oxidative stress.
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Affiliation(s)
- Yan Tang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing 210029, China
| | - Shuangyue Li
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing 210029, China
| | - Ping Zhang
- Department of Gynaecology, The First Public Hospital of Zhangjiagang, Zhangjiagang 215699, China
| | | | - Guoliang Meng
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing 210029, China
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Liping Xie
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing 210029, China
| | - Ying Yu
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yong Ji
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing 210029, China
| | - Yi Han
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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14
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Muehlschlegel JD, Christodoulou DC, McKean D, Gorham J, Mazaika E, Heydarpour M, Lee G, DePalma SR, Perry TE, Fox AA, Shernan SK, Seidman CE, Aranki SF, Seidman JG, Body SC. Using next-generation RNA sequencing to examine ischemic changes induced by cold blood cardioplegia on the human left ventricular myocardium transcriptome. Anesthesiology 2015; 122:537-50. [PMID: 25581909 PMCID: PMC4333028 DOI: 10.1097/aln.0000000000000582] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The exact mechanisms that underlie the pathological processes of myocardial ischemia in humans are unclear. Cardiopulmonary bypass with cardioplegic arrest allows the authors to examine the whole transcriptional profile of human left ventricular myocardium at baseline and after exposure to cold cardioplegia-induced ischemia as a human ischemia model. METHODS The authors obtained biopsies from 45 patients undergoing aortic valve replacement surgery at baseline and after an average of 79 min of cold cardioplegic arrest. Samples were RNA sequenced and analyzed with the Partek Genomics Suite (Partek Inc., St. Louis, MO) for differential expression. Ingenuity Pathway Analysis (Ingenuity Systems, Redwood City, CA) and Biobase ExPlain (Biobase GmbH, Wolfenbuettel, Germany) systems were used for functional and pathway analyses. RESULTS Of the 4,098 genes with a mean expression value greater than 5, 90% were down-regulated and 9.1% were up-regulated. Of those, 1,241 were significantly differentially expressed. Gene ontology analysis revealed significant down-regulation in immune inflammatory response and complement activation categories and highly consistent was the down-regulation of intelectin 1, proteoglycan, and secretory leukocyte peptidase inhibitor. Up-regulated genes of interest were FBJ murine osteosarcoma viral oncogene homolog and the hemoglobin genes hemoglobin α1 (HBA1) and hemoglobin β. In addition, analysis of transcription factor-binding sites revealed interesting targets in factors regulating reactive oxygen species production, apoptosis, immunity, cytokine production, and inflammatory response. CONCLUSIONS The authors have shown that the human left ventricle exhibits significant changes in gene expression in response to cold cardioplegia-induced ischemia during cardiopulmonary bypass, which provides great insight into the pathophysiology of ventricular ischemia, and thus, may help guide efforts to reduce myocardial damage during surgery.
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Affiliation(s)
- Jochen D Muehlschlegel
- From the Brigham and Women's Hospital, Department of Anesthesiology, Perioperative and Pain Medicine, Harvard Medical School, Boston, Massachusetts (J.D.M., M.H., S.K.S., S.C.B.); Department of Genetics, Harvard Medical School, Boston, Massachusetts (D.C.C., D.M., J.G., E.M., S.R.D., J.G.S.); Harvard Medical School, Boston, Massachusetts (G.L.); Northwest Anesthesia, Abbott Northwestern Hospital and Minneapolis Heart Institute, Minneapolis, Minnesota (T.E.P.); Department of Anesthesiology, University of Texas Southwestern Medical Center, Dallas, Texas (A.A.F.); Howard Hughes Medical Institute, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts (C.E.S.); and Brigham and Women's Hospital, Division of Cardiac Surgery, Department of Surgery, Harvard Medical School, Boston, Massachusetts (S.F.A.)
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15
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Lee H, Ko EH, Lai M, Wei N, Balroop J, Kashem Z, Zhang M. Delineating the relationships among the formation of reactive oxygen species, cell membrane instability and innate autoimmunity in intestinal reperfusion injury. Mol Immunol 2013; 58:151-9. [PMID: 24365749 DOI: 10.1016/j.molimm.2013.11.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 11/15/2013] [Accepted: 11/20/2013] [Indexed: 01/07/2023]
Abstract
Acute intestinal ischemia is a medical emergency with a high mortality rate, attesting to the need for a better understanding of its pathogenesis and the development of effective therapies. The goal of this study was to delineate the relationships among intracellular and extracellular events in intestinal ischemia/reperfusion (I/R) injury, particularly the formation of reactive oxygen species (ROS), cell membrane instability associated with lipid peroxidation and the innate autoimmune response mediated by natural IgM and complement. A murine model of natural IgM-mediated intestinal I/R was used. Mice overexpressing anti-oxidant enzyme SOD1 were found to have significantly reduced intestinal tissue damage and complete blockage of IgM-mediated complement activation compared with WT controls. To determine if cell membrane instability was an event intermediate between ROS formation and natural IgM-mediated innate autoimmune response, the cell membrane stabilizer (trehalose) was administered to WT mice prior to the induction of intestinal ischemia. Treatment with trehalose significantly protected animals from I/R injury and inhibited IgM-mediated complement activation although it did not prevent membrane lipid peroxidation. These data indicate that in normal mice subjected to I/R injury, intracellular ROS formation is an event upstream of the lipid peroxidation which results in cell membrane instability. The membrane instability leads to an innate autoimmune response by natural IgM and complement. Trehalose, a nontoxic disaccharide tolerated well by animals and humans, has promise as a protective agent for patients with medical conditions related to acute intestinal ischemia.
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Affiliation(s)
- Haekyung Lee
- Department of Anesthesiology, State University of New York Downstate Medical Center, Brooklyn, NY 11203, United States
| | - Eun Hee Ko
- Department of Anesthesiology, State University of New York Downstate Medical Center, Brooklyn, NY 11203, United States
| | - Mark Lai
- Department of Anesthesiology, State University of New York Downstate Medical Center, Brooklyn, NY 11203, United States; Department of Biomedical Sciences, Long Island University, Brookville, NY 11548, United States
| | - Na Wei
- Department of Anesthesiology, State University of New York Downstate Medical Center, Brooklyn, NY 11203, United States; Department of Biomedical Sciences, Long Island University, Brookville, NY 11548, United States
| | - Javi Balroop
- Department of Anesthesiology, State University of New York Downstate Medical Center, Brooklyn, NY 11203, United States; Department of Chemical and Biomolecular Engineering, NYU-Polytechnic Institute, Brooklyn, NY 11201, United States
| | - Zerin Kashem
- Department of Anesthesiology, State University of New York Downstate Medical Center, Brooklyn, NY 11203, United States
| | - Ming Zhang
- Department of Anesthesiology, State University of New York Downstate Medical Center, Brooklyn, NY 11203, United States; Department of Cell Biology, State University of New York Downstate Medical Center, Brooklyn, NY 11203, United States.
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