1
|
Lin X, Zhao P, Lin Z, Chen J, Bingwa LA, Siaw-Debrah F, Zhang P, Jin K, Yang S, Zhuge Q. Establishment of a Modified and Standardized Ferric Chloride-Induced Rat Carotid Artery Thrombosis Model. ACS OMEGA 2022; 7:8919-8927. [PMID: 35309441 PMCID: PMC8928333 DOI: 10.1021/acsomega.1c07316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Ferric chloride is widely utilized in inducing thrombosis in small vessels of experimental animals. However, the lack of its application in large blood vessels of experimental animals and inconsistent concentration has limited its application. Therefore, we systematically tested the most suitable concentration and reliable induction time in the experiment of using ferric chloride to induce rat carotid artery thrombosis. METHODS In this study, we selected the common carotid artery of 59 Sprague-Dawley rats as the target vessel. The exploration process was divided into three stages. First, to determine the optimum induction concentration, we compared the effects of 30-60% ferric chloride on thrombus formation within 24 h. Second, to confirm the handling time, we tested different induction times from 3 min to 10 min. Lastly, we used the thrombolytic drug rt-PA to detect whether the formed thrombus can be lysed. Doppler blood flow imaging and H-E staining were employed to estimate the blood flow and thrombus. The ATP levels in the brain were measured using a bioluminescence ATP assay kit. RESULTS We found that the application of 50% ferric chloride for 10 min was enough to successfully induce thrombosis in the rat carotid artery and without spontaneous thrombolysis after 24 h. It is better than other concentrations and will lead to the decline of the ATP content in the ischemic hemisphere. CONCLUSIONS Our results indicate that the rat carotid artery thrombosis model induced by 50% ferric chloride for 10 min is stable and reliable.
Collapse
Affiliation(s)
- Xiao Lin
- Department
of Neurosurgery, The First Affiliated Hospital
of Wenzhou Medical University, Wenzhou 325000 China
- Zhejiang
Provincial Key Laboratory of Aging and Neurological Disorder Research, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000 China
| | - Peiqi Zhao
- Department
of Neurosurgery, The First Affiliated Hospital
of Wenzhou Medical University, Wenzhou 325000 China
- Zhejiang
Provincial Key Laboratory of Aging and Neurological Disorder Research, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000 China
| | - Zhongxiao Lin
- Department
of Neurosurgery, The First Affiliated Hospital
of Wenzhou Medical University, Wenzhou 325000 China
- Zhejiang
Provincial Key Laboratory of Aging and Neurological Disorder Research, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000 China
| | - Jiayu Chen
- Department
of Neurosurgery, The First Affiliated Hospital
of Wenzhou Medical University, Wenzhou 325000 China
- Zhejiang
Provincial Key Laboratory of Aging and Neurological Disorder Research, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000 China
| | - Lebohang Anesu Bingwa
- Department
of Neurosurgery, The First Affiliated Hospital
of Wenzhou Medical University, Wenzhou 325000 China
| | - Felix Siaw-Debrah
- Department
of Neurosurgery, Korlebu Teaching Hospital, Korlebu, Ghana 00233, West Africa
| | - Peng Zhang
- Department
of Neurosurgery, The First Affiliated Hospital
of Wenzhou Medical University, Wenzhou 325000 China
- Zhejiang
Provincial Key Laboratory of Aging and Neurological Disorder Research, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000 China
| | - Kunlin Jin
- Department
of Pharmacology and Neuroscience, University
of North Texas Health Science Center, Fort Worth, Texas 76107, United States
| | - Su Yang
- Department
of Neurosurgery, The First Affiliated Hospital
of Wenzhou Medical University, Wenzhou 325000 China
- Zhejiang
Provincial Key Laboratory of Aging and Neurological Disorder Research, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000 China
| | - Qichuan Zhuge
- Department
of Neurosurgery, The First Affiliated Hospital
of Wenzhou Medical University, Wenzhou 325000 China
- Zhejiang
Provincial Key Laboratory of Aging and Neurological Disorder Research, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000 China
| |
Collapse
|
2
|
Chang HH, Lan YC, Chung SD, Chien CT. Sweet Potato Leaf Feeding Decreases Cholesterol, Oxidative Stress and Thrombosis Formation in Syrian Hamsters with a High-Cholesterol Diet. Life (Basel) 2021; 11:life11080802. [PMID: 34440546 PMCID: PMC8401060 DOI: 10.3390/life11080802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 12/24/2022] Open
Abstract
Nutritional strategies to reduce hyperlipidemia and the risk of cardiovascular disease are gaining more public favor and medical professionals’ attention. The authors of this study explored the effect of sweet potato leaf powder (SPLP) feeding on the parameters of plasma lipids, reactive oxygen species, and time to thrombosis formation in Syrian hamsters fed with high-cholesterol diets. The animals were separated into six groups: a feeding control diet, a control diet containing 0.1% cholesterol, a control diet containing 0.2% cholesterol, a control diet containing 0.1% cholesterol plus 2.5% SPLP, a control diet containing 0.1% cholesterol plus 5% SPLP, and a control diet containing 0.2% cholesterol plus 5% SPLP for six weeks. The levels of serum total cholesterol (51% increase), low-density lipoprotein cholesterol (70.6% increase), very-low-density lipoprotein cholesterol (51.3% increase), and the triglyceride and atherogenic index (LDL-C/HDL-C) significantly increased in the high-cholesterol diet groups. Concomitant 5% sweet potato leaf powder ingestion significantly decreased the lipid profiles, with a 20.6% total cholesterol reduction in the 0.1% cholesterol diet groups, a 17.2% reduction in the 0.2% group, a 48.7% LDL reduction in the 0.1% cholesterol group, and a 30.3% reduction in the 0.2% group, with a consequent decrease in the atherogenic index. SPLP feeding was found to be associated with increased fecal sterol contents, with a 188.6% increase in the 0.1% cholesterol-fed group and a 177.3% increase in the 0.2% group. The SPLP-fed groups had depressed ROS levels, elongated FeCl3-induced times to thrombosis formation, and increased liver superoxide dismutase contents and SREBP-1 protein expression. Sweet potato leaf intake could reduce plasma total cholesterol, LDL, and oxidative stress. We suggest sweet potato leaf intake as a choice of nutritional strategy for hyperlipidemia and cardiovascular disease prevention.
Collapse
Affiliation(s)
- Hao-Hsiang Chang
- Department of Family Medicine, National Taiwan University Hospital, Taipei 10016, Taiwan;
- Department of Family Medicine, National Taiwan University College of Medicine, Taipei 10016, Taiwan
| | - Yi-Chan Lan
- Department of Family Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 30060, Taiwan;
| | - Shiu-Dong Chung
- Department of Surgery, Division of Urology, Far-Eastern Memorial Hospital, New Taipei City 220, Taiwan
- Graduate Program in Biomedical Informatics, College of Informatics, Yuan-Ze University, Taoyuan City 32003, Taiwan
- Correspondence: (S.-D.C.); (C.-T.C.)
| | - Chiang-Ting Chien
- Department of Family Medicine, National Taiwan University College of Medicine, Taipei 10016, Taiwan
- Correspondence: (S.-D.C.); (C.-T.C.)
| |
Collapse
|
3
|
Leonurine Ameliorates Oxidative Stress and Insufficient Angiogenesis by Regulating the PI3K/Akt-eNOS Signaling Pathway in H 2O 2-Induced HUVECs. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9919466. [PMID: 34394836 PMCID: PMC8357476 DOI: 10.1155/2021/9919466] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 07/18/2021] [Indexed: 11/21/2022]
Abstract
Thrombus is considered to be the pathological source of morbidity and mortality of cardiovascular disease and thrombotic complications, while oxidative stress is regarded as an important factor in vascular endothelial injury and thrombus formation. Therefore, antioxidative stress and maintaining the normal function of vascular endothelial cells are greatly significant in regulating vascular tension and maintaining a nonthrombotic environment. Leonurine (LEO) is a unique alkaloid isolated from Leonurus japonicus Houtt (a traditional Chinese medicine (TCM)), which has shown a good effect on promoting blood circulation and removing blood stasis. In this study, we explored the protective effect and action mechanism of LEO on human umbilical vein endothelial cells (HUVECs) after damage by hydrogen peroxide (H2O2). The protective effects of LEO on H2O2-induced HUVECs were determined by measuring the cell viability, cell migration, tube formation, and oxidative biomarkers. The underlying mechanism of antioxidation of LEO was investigated by RT-qPCR and western blotting. Our results showed that LEO treatment promoted cell viability; remarkably downregulated the intracellular generation of reactive oxygen species (ROS), malondialdehyde (MDA) production, and lactate dehydrogenase (LDH); and upregulated the nitric oxide (NO) and superoxide dismutase (SOD) activity in H2O2-induced HUVECs. At the same time, LEO treatment significantly promoted the phosphorylation level of angiogenic protein PI3K, Akt, and eNOS and the expression level of survival factor Bcl2 and decreased the expression level of death factor Bax and caspase3. In conclusion, our findings suggested that LEO can ameliorate the oxidative stress damage and insufficient angiogenesis of HUVECs induced by H2O2 through activating the PI3K/Akt-eNOS signaling pathway.
Collapse
|
4
|
Multiple Progressive Thermopreconditioning Improves Cardiac Ischemia/Reperfusion-induced Left Ventricular Contractile Dysfunction and Structural Abnormality in Rat. Transplantation 2020; 104:1869-1878. [PMID: 32058468 DOI: 10.1097/tp.0000000000003176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Triple progressive thermopreconditioning (3PTP) may induce high Hsp-70 expression to maintain cardiac function. We suggest that 3PTP may reduce myocardial ischemia/reperfusion (I/R) injury during organ transplantation through Bag3/Hsp-70 mediated defense mechanisms. METHODS Male Wistar rats were divided into sham control group and 72 h after 3PTP in a 42°C water bath (3PTP) group. Rats underwent 60 min of ischemia by occlusion of the left anterior descending coronary artery followed by 240 min reperfusion. Hemodynamic parameters, including the electrocardiogram, microcirculation, heart rate, left ventricular end-diastolic pressure, maximal rate of rise (+dp/dt), and fall (-dp/dt) in the left ventricular pressure for index of contraction and relaxation were determined. Myocardial infarct size was evaluated by the Evans blue-2,3,5-triphenyltetrazolium chloride method. 3PTP-induced protective mechanisms were determined by Western blot and immunohistochemistry. RESULTS Cardiac I/R depressed cardiac microcirculation, induced S-T segment elevation, and R-R and P-R interval elongation increased infarct size associated with erythrocyte extravasation, leukocytes and macrophage/monocyte infiltration, granulocyte colony-stimulating factor, poly(ADP-ribose) polymerase 1 stain, and transferase-mediated dUTP-biotin nick end labeling positive cells. However, 3PTP evoked significant cardioprotection against I/R injury, characterized by the increased +dp/dt value and the decreased elevated left ventricular end-diastolic pressure, erythrocyte extravasation, leukocyte and macrophage/monocyte infiltration, granulocyte colony-stimulating factor expression, poly(ADP-ribose) polymerase 1 expression, transferase-mediated dUTP-biotin nick end labeling positive cells, and fragmentation and infarct area. In addition, 3PTP increased Hsp-70 and Bag3 expression and decreased Bax/Bcl-2 ratio, but did not affect the Beclin-1 and LC3-II/LC3-I ratio in the heart with I/R injury. CONCLUSIONS 3PTP therapies may through Bag3 upregulation alleviate I/R injury-induced left ventricular structural deterioration and dysfunction.
Collapse
|
5
|
Yasuzawa T, Mima A, Ueshima S. Antithrombotic Effect of Oral Administration of Mozuku (Cladosiphon okamuranus, Brown Seaweed) Extract in Rat. J Nutr Sci Vitaminol (Tokyo) 2019; 65:171-176. [PMID: 31061286 DOI: 10.3177/jnsv.65.171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Dysfunction of vascular endothelial cells causes the risk of thrombosis. Aim of this study is to evaluate the antithrombotic effect of Okinawa mozuku (brown seaweed, Cladosiphon okamuranus) extract by using cultured vascular endothelial cells and rat carotid arterial thrombosis model induced by ferric chloride (FeCl3). The cell line (TKM-33) established from human umbilical vein endothelial cells were cultured with or without Okinawa mozuku extract. After incubation for 24 h, the conditioned medium was collected to evaluate urokinase-type plasminogen activator (u-PA) activity. Next, rats were fed with water or water containing 5% of Okinawa mozuku extract for 8 wk. After 8 wk of treatments, the rats were provided for the carotid arterial thrombosis model, and fibrinolytic factor and coagulation factor in blood were measured. Okinawa mozuku extract significantly augmented u-PA activity in the conditioned medium. The decrease of carotid artery blood flow induced by 40% FeCl3 injury in rats fed with Okinawa mozuku extract was less than that in control rats. Thus, oral administration of Okinawa mozuku extract prevented thrombus formation in this model. Oral administration of Okinawa mozuku extract significantly increased u-PA activity in euglobulin fraction, compared with control group. On the other hand, platelet aggregation activity, activated partial thromboplastin time, and active PAI-1 level in plasma exhibited no significant differences between control and Okinawa mozuku groups. These results indicate that oral administration of Okinawa mozuku enhances fibrinolytic activity in plasma and prevents thrombus formation which is induced by injury of vascular endothelial cells.
Collapse
Affiliation(s)
- Toshinori Yasuzawa
- Department of Food Science and Nutrition, Faculty of Agriculture, Kindai University
| | - Akira Mima
- Department of Nephrology, Kindai University Nara Hospital
| | - Shigeru Ueshima
- Department of Food Science and Nutrition, Faculty of Agriculture, Kindai University
- Major in Applied Biological Chemistry, Graduate School of Agriculture, Kindai University
- Antiaging Center, Kindai University
| |
Collapse
|
6
|
Chien CT, Fan SC, Lin SC, Kuo CC, Yang CH, Yu TY, Lee SP, Cheng DY, Li PC. Glucagon-like peptide-1 receptor agonist activation ameliorates venous thrombosis-induced arteriovenous fistula failure in chronic kidneyd isease. Thromb Haemost 2017; 112:1051-64. [DOI: 10.1160/th14-03-0258] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 05/08/2014] [Indexed: 12/18/2022]
Abstract
SummaryHigh shear stress that develops in the arteriovenous fistula of chronic kidney diseases (CKD) may increase H2O2 and thromboxane A2 (TXA2) release, thereby exacerbating endothelial dysfunction, thrombosis, and neointimal hyperplasia. We investigated whether glucagon-like peptide-1 receptor agonist/exendin-4, a potentially cardiovascular protective agent, could improve TXA2-induced arteriovenous fistula injury in CKD. TXA2 administration to H2O2-exposed human umbilical vein endothelial cells increased apoptosis, senescence, and detachment; these phenotypes were associated with the downregulation of phosphorylated endothelial nitric oxide synthase/heme oxygenase-1 (eNOS/HO-1) signalling. Exendin-4 reduced H2O2/TXA2-induced endothelial injury via inhibition of apoptosis-related mechanisms and restoration of phosphorylated eNOS/HO-1 signalling. Male Wistar rats subjected to right common carotid artery-external jugular vein anastomosis were treated with exendin-4 via cervical implant osmotic pumps for 16–42 days. High shear stress induced by the arteriovenous fistula significantly increased venous haemodynamics, blood and tissue H2O2 and TXB2 levels, macrophage/monocyte infiltration, fibrosis, proliferation, and adhesion molecule-1 expression. Apoptosis was also increased due to NADPH oxidase gp91 activation and mitochondrial Bax translocation in the proximal end of the jugular vein of CKD rats. Exendin-4-treatment of rats with CKD led to the restoration of normal endothelial morphology and correction of arteriovenous fistula function. Exendin-4 treatment or thromboxane synthase gene deletion in CKD mice markedly reduced ADP-stimulated platelet adhesion to venous endothelium, and prevented venous occlusion in FeCl3-injured vessels by upregulation of HO-1. Together, these data reveal that the use of glucagon-like peptide-1 receptor agonists is an effective strategy for treatment of CKD-induced arteriovenous fistula failure.
Collapse
|
7
|
Hu HJ, Jiang ZS, Qiu J, Zhou SH, Liu QM. Protective effects of hydrogen sulfide against angiotensin II-induced endoplasmic reticulum stress in HUVECs. Mol Med Rep 2017; 15:2213-2222. [DOI: 10.3892/mmr.2017.6238] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 10/05/2016] [Indexed: 11/05/2022] Open
|
8
|
Li PC, Liu LF, Jou MJ, Wang HK. The GLP-1 receptor agonists exendin-4 and liraglutide alleviate oxidative stress and cognitive and micturition deficits induced by middle cerebral artery occlusion in diabetic mice. BMC Neurosci 2016; 17:37. [PMID: 27296974 PMCID: PMC4907076 DOI: 10.1186/s12868-016-0272-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 06/03/2016] [Indexed: 01/04/2023] Open
Abstract
Background Glucagon-like peptide 1 (GLP-1) analogs protect a variety of cell types against oxidative damage and vascular and neuronal injury via binding to GLP-1 receptors. This study aimed to investigate the effects of the GLP-1 analogs exendin-4 and liraglutide on cerebral blood flow, reactive oxygen species production, expression of oxidative stress-related proteins, cognition, and pelvic sympathetic nerve-mediated bladder contraction after middle cerebral artery occlusion (MCAO) injury in the db/db mouse model of diabetes. Results Sixty minutes of MCAO increased blood and brain reactive oxygen species counts in male db/db mice, as revealed by dihydroethidium staining. MCAO also increased nuclear factor-κB and intercellular adhesion molecule-1 expression and decreased cerebral microcirculation. These effects were attenuated by treatment with exendin-4 or liraglutide. MCAO did not affect basal levels of phosphorylated Akt (p-Akt) or endothelial nitric oxide synthase (p-eNOS); however, exendin-4 and liraglutide treatments significantly enhanced p-Akt and p-eNOS levels, indicating activation of the p-Akt/p-eNOS signaling pathway. MCAO-induced motor and cognitive deficits and micturition dysfunction, indicated by reduced pelvic nerve-mediated voiding contractions and increased nonvoiding contractions, were also partially attenuated by exendin-4 treatment. Conclusions The above data indicate that treatment with GLP-1 agonists exerts protective effects against oxidative, inflammatory, and apoptotic damage in brain areas that control parasympathetic/pelvic nerve-mediated voiding contractions and cognitive and motor behaviors in a diabetic mouse model.
Collapse
Affiliation(s)
- Ping-Chia Li
- School of Medicine for International Students, I-Shou University (Yanchao Campus), Kaohsiung, Taiwan. .,Department of Occupational Therapy, College of Medicine, I-Shou University (Yanchao Campus), Kaohsiung, Taiwan.
| | - Li-Fen Liu
- School of Medicine for International Students, I-Shou University (Yanchao Campus), Kaohsiung, Taiwan
| | - Ming-Jia Jou
- School of Medicine for International Students, I-Shou University (Yanchao Campus), Kaohsiung, Taiwan
| | - Hao-Kuang Wang
- School of Medicine for International Students, I-Shou University (Yanchao Campus), Kaohsiung, Taiwan.,Department of Neurosurgery, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| |
Collapse
|
9
|
Allende M, Molina E, Guruceaga E, Tamayo I, González-Porras JR, Gonzalez-López TJ, Toledo E, Rabal O, Ugarte A, Roldán V, Rivera J, Oyarzabal J, Montes R, Hermida J. Hsp70 protects from stroke in atrial fibrillation patients by preventing thrombosis without increased bleeding risk. Cardiovasc Res 2016; 110:309-18. [PMID: 26976620 DOI: 10.1093/cvr/cvw049] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 02/27/2016] [Indexed: 12/19/2022] Open
Abstract
AIMS Atrial fibrillation (AF) is a major risk factor for cardio-embolic stroke. Anticoagulant drugs are effective in preventing AF-related stroke. However, the high frequency of anticoagulant-associated major bleeding is a major concern. This study sought to identify new targets to develop safer antithrombotic therapies. METHODS AND RESULTS Here, microarray analysis in peripheral blood cells in eight patients with AF and stroke and eight AF subjects without stroke brought to light a stroke-related gene expression pattern. HSPA1B, which encodes for heat-shock protein 70 kDa (Hsp70), was the most differentially expressed gene. This gene was down-regulated in stroke subjects, a finding confirmed further in an independent AF cohort of 200 individuals. Hsp70 knock-out mice subjected to different thrombotic challenges developed thrombosis significantly earlier than their wild-type (WT) counterparts. Remarkably, the tail bleeding time was unchanged. Accordingly, both TRC051384 and tubastatin A, i.e. two Hsp70 inducers via different pathways, delayed thrombus formation in WT mice, the tail bleeding time still being unaltered. Most interestingly, Hsp70 inducers did not increase the bleeding risk even when aspirin was concomitantly administered. Hsp70 induction was associated with an increased vascular thrombomodulin expression and higher circulating levels of activated protein C upon thrombotic stimulus. CONCLUSIONS Hsp70 induction is a novel approach to delay thrombus formation with minimal bleeding risk, and is especially promising for treating AF patients and in other situations where there is also a major bleeding hazard.
Collapse
Affiliation(s)
- Mikel Allende
- Division of Cardiovascular Sciences, Laboratory of Thrombosis and Haemostasis, Center for Applied Medical Research (CIMA), IdiSNA, Navarra's Health Research Institute, University of Navarra, Pío XII, 55, Pamplona, Spain
| | - Eva Molina
- Division of Cardiovascular Sciences, Laboratory of Thrombosis and Haemostasis, Center for Applied Medical Research (CIMA), IdiSNA, Navarra's Health Research Institute, University of Navarra, Pío XII, 55, Pamplona, Spain
| | - Elisabet Guruceaga
- Proteomics, Genomics & Bioinformatics Unit, Center for Applied Medical Research (CIMA), IdiSNA, Navarra's Health Research Institute, University of Navarra, Pamplona, Spain
| | - Ibai Tamayo
- Division of Cardiovascular Sciences, Laboratory of Thrombosis and Haemostasis, Center for Applied Medical Research (CIMA), IdiSNA, Navarra's Health Research Institute, University of Navarra, Pío XII, 55, Pamplona, Spain
| | | | | | - Estefanía Toledo
- Department of Preventive Medicine and Public Health, School of Medicine, IdiSNA, Navarra's Health Research Institute, University of Navarra, Pamplona, Spain
| | - Obdulia Rabal
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), IdiSNA, Navarra's Health Research Institute, University of Navarra, Pamplona, Spain
| | - Ana Ugarte
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), IdiSNA, Navarra's Health Research Institute, University of Navarra, Pamplona, Spain
| | - Vanesa Roldán
- Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Hospital Universitario Morales Meseguer, Universidad de Murcia, IMIB-Arrixaca, Murcia, Spain
| | - José Rivera
- Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Hospital Universitario Morales Meseguer, Universidad de Murcia, IMIB-Arrixaca, Murcia, Spain
| | - Julen Oyarzabal
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), IdiSNA, Navarra's Health Research Institute, University of Navarra, Pamplona, Spain
| | - Ramón Montes
- Division of Cardiovascular Sciences, Laboratory of Thrombosis and Haemostasis, Center for Applied Medical Research (CIMA), IdiSNA, Navarra's Health Research Institute, University of Navarra, Pío XII, 55, Pamplona, Spain
| | - José Hermida
- Division of Cardiovascular Sciences, Laboratory of Thrombosis and Haemostasis, Center for Applied Medical Research (CIMA), IdiSNA, Navarra's Health Research Institute, University of Navarra, Pío XII, 55, Pamplona, Spain
| |
Collapse
|
10
|
Soukup T. Effects of long-term thyroid hormone level alterations, n-3 polyunsaturated fatty acid supplementation and statin administration in rats. Physiol Res 2014; 63:S119-31. [PMID: 24564652 DOI: 10.33549/physiolres.932623] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Thyroid hormones (THs) play multiple roles in the organism and alterations of their levels can result in many pathological changes. Currently, we use hyperthyroid and hypothyroid rats as "models of a diseased organism" and analyze whether n-3 polyunsaturated fatty acids (n-3 PUFA) administration can ameliorate TH-induced pathophysiological changes. We investigate myosin heavy chain composition, calsequestrin levels, changes in cardiac tissue remodeling and cell-to-cell communication, expression of protein kinases, mitochondrial functions, oxidative stress markers and cell death, changes in serum lipid levels, activities of key enzymes of thyroid hormone metabolism, activity of acetylcholine esterase and membrane anisotropy, as well as mobile behavior and thermal sensitivity. Additionally we also mention our pilot experiments dealing with the effect of statin administration on skeletal muscles and sensory functions. As THs and n-3 PUFA possess multiple sites of potential action, we hope that our complex research will contribute to a better understanding of their actions, which can be useful in the treatment of different pathophysiological events including cardiac insufficiency in humans.
Collapse
Affiliation(s)
- T Soukup
- Department of Functional Morphology, Institute of Physiology Academy of Sciences of the Czech Republic, Prague, Czech Republic.
| |
Collapse
|
11
|
Altered expression of genes associated with telomere maintenance and cell function of human vascular endothelial cell at elevated temperature. Mol Cell Biochem 2014; 397:305-12. [PMID: 25142166 DOI: 10.1007/s11010-014-2198-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 08/13/2014] [Indexed: 12/11/2022]
Abstract
The pathophysiological alterations of vascular endothelial cells induced by heat were studied. Human umbilical venous endothelial cells were cultured for 1 day at three different temperatures (37, 39, and 42 °C). The telomere lengths, the expressions of proteins associated with telomere length maintenance, apoptosis, heat shock, and vascular function were analyzed. The cell growth was not suppressed at 39 °C but suppressed at 42 °C. The mean telomere length did not change, whereas the telomere length distribution altered at 42 °C. Long telomere decreased and middle-sized telomere increased in the telomere length distribution at 42 °C. The telomerase activity did not show any heat-associated alterations. However, of the components of telomerase, telomerase reverse transcriptase was up-regulated along temperature elevation. In contrast, the expression level of RNA component TERC did not altered. Among the analyzed apoptosis-associated proteins, p21 was down-regulated and phosphorylated p53 was up-regulated. Heat shock proteins and NO synthase were up-regulated at 42 °C. These results suggested that induced growth suppression or cell senescence was induced by strong heat stress rather than mild one predominantly in cells bearing long telomeres with p53 activation, and simultaneously activated some telomere-associated factors, heat shock proteins, and NO synthesis probably for heat-resistant cell survival.
Collapse
|
12
|
Chien CY, Chien CT, Wang SS. Progressive thermopreconditioning attenuates rat cardiac ischemia/reperfusion injury by mitochondria-mediated antioxidant and antiapoptotic mechanisms. J Thorac Cardiovasc Surg 2014; 148:705-13. [PMID: 24507988 DOI: 10.1016/j.jtcvs.2013.12.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 11/12/2013] [Accepted: 12/05/2013] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Progressive thermal preconditioning (PTP) provides vascular protection with less hemodynamic fluctuations, endoplasmic reticulum (ER), and oxidative stress compared with whole body hyperthermia. We suggest PTP might efficiently diminish cardiac ischemia/reperfusion-induced apoptosis and autophagy injury. METHODS A total of 67 male Wistar rats were divided into a non-PTP control group, 24 or 72 hours after a single cycle or 3 consecutive cycles of PTP in a 42°C water bath (1-24, 1-72, 3-24, and 3-72 groups). We measured the cardiac O2(-) amount in vivo in response to left anterior descending coronary artery ligation for 2 hours and reperfusion for 3 hours. Cardiac function and injury were determined by microcirculation, electrocardiography, and infarct size. The PTP-induced protective effects on nicotinamide adenine dinucleotide phosphate oxidase gp91-mediated oxidative stress, ER stress, and apoptosis- and autophagy-related mechanisms were examined using Western blot and immunohistochemistry. RESULTS Coronary arterial ischemia/reperfusion depressed cardiac microcirculation, induced ST-segment elevation and increased infarct size in non-PTP and PTP rats. Ischemia/reperfusion enhanced the cardiac O2(-) levels by enhanced nicotinamide adenine dinucleotide phosphate oxidase gp91 expression, cytosolic cytochrome C release, and decreased mitochondrial Bcl-2 expression. Cardiac injury activated ER stress-78-kDa glucose-regulated protein expression, increased the Bax/Bcl-2 ratio, cleaved caspase 3 expression and poly-(ADP-ribose)-polymerase fragments, leading to apoptosis formation, and promoted LC3-II expression, resulting in autophagy formation. PTP treatment elevated heat shock protein 70, heat shock protein 32, Bcl-2, Bcl-xL, and manganese superoxide dismutase in the rat heart, especially in the 3-72 group. PTP treatment significantly restored cardiac microcirculation, decreased oxidative stress, ER stress, apoptosis, autophagy, and infarct size. CONCLUSIONS PTP significantly reduced cardiac ischemia/reperfusion injury by upregulating antioxidant, antiapoptotic, and antiautophagic mechanisms.
Collapse
Affiliation(s)
- Chen-Yen Chien
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan, Republic of China; Department of Surgery, Mackay Memorial Hospital and Mackay Medical College, Taipei, Taiwan, Republic of China; Mackay Medicine, Nursing and Management College, New Taipei City, Taiwan, Republic of China
| | - Chiang-Ting Chien
- Department of Biological Science, National Taiwan Normal University, Taipei, Taiwan, Republic of China.
| | - Shoei-Shen Wang
- Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan, Republic of China
| |
Collapse
|
13
|
Fang X, Jiang Y, Feng L, Chen H, Zhen C, Ding M, Wang X. Blockade of PI3K/AKT pathway enhances sensitivity of Raji cells to chemotherapy through down-regulation of HSP70. Cancer Cell Int 2013; 13:48. [PMID: 23706027 PMCID: PMC3680239 DOI: 10.1186/1475-2867-13-48] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 05/10/2013] [Indexed: 01/08/2023] Open
Abstract
Up-regulation of heat shock protein 70 (HSP70) could be elicited primarily by heat in former studies, and this was proved to be associated with cancer progression. Burkitt's lymphoma is one of highly aggressive B-cell non-Hodgkin’s lymphoma and is one of the fastest growing human tumors. To investigate the effect of HSP70 expression on the sensitivity of human Burkitt lymphoma cells (Raji cells) to chemotherapy and its role in the involvement of PI3K/AKT pathway, we evaluated the effects of LY294002, a PI3K inhibitor, on the expression of HSP70 and cell sensitivity to adriamycin (ADM) or cisplatin (DDP). In present study, expressions of HSP70, AKT and phosphorylated AKT (p-AKT) in Raji cells were measured by Western-Blot. Apoptosis index of Raji cells was examined by flow cytometry. Cytotoxicities of adriamycin (ADM) and cisplatin (DDP) were determined by WST-8 assay. We found that hyperthermia (42 degrees for 1 hour) up-regulated the expression of HSP70 expression and blockade of PI3K/AKT pathway down-regulated HSP70 expression in Raji cells. Compared to cells treated with ADM or DDP alone, hyperthermia protected cells from chemotherapy while LY294002 enhanced sensitivity of Raji cells to chemotherapy. Our results suggested down-regulation of HSP70 expression by blockade of PI3K/AKT pathway maybe responsible for the increased sensitivity of Raji cells to chemotherapy. Targeting PI3K/AKT pathway or inhibiting HSP70 expression may be beneficial for chemotherapy treatment of Burkitt lymphoma patients.
Collapse
Affiliation(s)
- Xiaosheng Fang
- Department of Hematology, Provincial Hospital Affiliated to Shandong University, Jinan 250021, P,R, China.
| | | | | | | | | | | | | |
Collapse
|
14
|
Teng H, Chopp M, Hozeska-Solgot A, Shen L, Lu M, Tang C, Zhang ZG. Tissue plasminogen activator and plasminogen activator inhibitor 1 contribute to sonic hedgehog-induced in vitro cerebral angiogenesis. PLoS One 2012; 7:e33444. [PMID: 22432023 PMCID: PMC3303815 DOI: 10.1371/journal.pone.0033444] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 02/09/2012] [Indexed: 01/14/2023] Open
Abstract
The molecular mechanisms underlying cerebral angiogenesis have not been fully investigated. Using primary mouse brain endothelial cells (MBECs) and a capillary-like tube formation assay, we investigated whether the sonic hedgehog (Shh) signaling pathway is coupled with the plasminogen/plasmin system in mediating cerebral angiogenesis. We found that incubation of MBECs with recombinant human Shh (rhShh) substantially increased the tube formation in naïve MBECs. This was associated with increases in tissue plasminogen activator (tPA) activation and reduction of plasminogen activator inhibitor 1 (PAI-1). Blockage of the Shh pathway with cyclopamine abolished the induction of tube formation and the effect of rhShh on tPA and PAI-1. Addition of PAI-1 reduced rhShh-augmented tube formation. Genetic ablation of tPA in MBECs impaired tube formation and downregulated of vascular endothelial growth factor (VEGF) and angiopoietin 1 (Ang1). Addition of rhShh to tPA−/− MBECs only partially restored the tube formation and upregulated Ang1, but not VEGF, although rhShh increased VEGF and Ang1 expression on wild-type MBECs. Complete restoration of tube formation in tPA−/− MBECs was observed only when both exogenous Shh and tPA were added. The present study provides evidence that tPA and PAI-1 contribute to Shh-induced in vitro cerebral angiogenesis.
Collapse
Affiliation(s)
- Hua Teng
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, United States of America
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, United States of America
- Department of Physics, Oakland University, Rochester, Michigan, United States of America
| | - Ann Hozeska-Solgot
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, United States of America
| | - Lihong Shen
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, United States of America
| | - Mei Lu
- Department of Biostatistics and Research Epidemiology, Henry Ford Hospital, Detroit, Michigan, United States of America
| | - Clark Tang
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, United States of America
| | - Zheng Gang Zhang
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, United States of America
- * E-mail:
| |
Collapse
|