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Agarwal M, Roth K, Yang Z, Sharma R, Maddipati K, Westrick J, Petriello MC. Loss of flavin-containing monooxygenase 3 modulates dioxin-like polychlorinated biphenyl 126-induced oxidative stress and hepatotoxicity. ENVIRONMENTAL RESEARCH 2024; 250:118492. [PMID: 38373550 PMCID: PMC11102846 DOI: 10.1016/j.envres.2024.118492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/09/2024] [Accepted: 02/13/2024] [Indexed: 02/21/2024]
Abstract
Dioxin-like pollutants (DLPs), such as polychlorinated biphenyl 126 (PCB 126), are synthetic chemicals classified as persistent organic pollutants. They accumulate in adipose tissue and have been linked to cardiometabolic disorders, including fatty liver disease. The toxicity of these compounds is associated with activation of the aryl hydrocarbon receptor (Ahr), leading to the induction of phase I metabolizing enzyme cytochrome P4501a1 (Cyp1a1) and the subsequent production of reactive oxygen species (ROS). Recent research has shown that DLPs can also induce the xenobiotic detoxification enzyme flavin-containing monooxygenase 3 (FMO3), which plays a role in metabolic homeostasis. We hypothesized whether genetic deletion of Fmo3 could protect mice, particularly in the liver, where Fmo3 is most inducible, against PCB 126 toxicity. To test this hypothesis, male C57BL/6 wild-type (WT) mice and Fmo3 knockout (Fmo3 KO) mice were exposed to PCB 126 or vehicle (safflower oil) during a 12-week study, at weeks 2 and 4. Various analyses were performed, including hepatic histology, RNA-sequencing, and quantitation of PCB 126 and F2-isoprostane concentrations. The results showed that PCB 126 exposure caused macro and microvesicular fat deposition in WT mice, but this macrovesicular fatty change was absent in Fmo3 KO mice. Moreover, at the pathway level, the hepatic oxidative stress response was significantly different between the two genotypes, with the induction of specific genes observed only in WT mice. Notably, the most abundant F2-isoprostane, 8-iso-15-keto PGE2, increased in WT mice in response to PCB 126 exposure. The study's findings also demonstrated that hepatic tissue concentrations of PCB 126 were higher in WT mice compared to Fmo3 KO mice. In summary, the absence of FMO3 in mice led to a distinctive response to dioxin-like pollutant exposure in the liver, likely due to alterations in lipid metabolism and storage, underscoring the complex interplay of genetic factors in the response to environmental toxins.
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Affiliation(s)
- Manisha Agarwal
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA; Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Katherine Roth
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Zhao Yang
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Rahul Sharma
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Krishnarao Maddipati
- Department of Pathology, Lipidomic Core Facility, Wayne State University, Detroit, MI, 48202, USA
| | - Judy Westrick
- Department of Chemistry, Lumigen Instrumentation Center, Wayne State University, Detroit, MI, 48202, USA
| | - Michael C Petriello
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA; Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA.
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2
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Gulej R, Nyúl-Tóth Á, Csik B, Patai R, Petersen B, Negri S, Chandragiri SS, Shanmugarama S, Mukli P, Yabluchanskiy A, Conley S, Huffman D, Tarantini S, Csiszar A, Ungvari Z. Young blood-mediated cerebromicrovascular rejuvenation through heterochronic parabiosis: enhancing blood-brain barrier integrity and capillarization in the aged mouse brain. GeroScience 2024:10.1007/s11357-024-01154-8. [PMID: 38727872 DOI: 10.1007/s11357-024-01154-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/05/2024] [Indexed: 06/15/2024] Open
Abstract
Age-related cerebromicrovascular changes, including blood-brain barrier (BBB) disruption and microvascular rarefaction, play a significant role in the development of vascular cognitive impairment (VCI) and neurodegenerative diseases. Utilizing the unique model of heterochronic parabiosis, which involves surgically joining young and old animals, we investigated the influence of systemic factors on these vascular changes. Our study employed heterochronic parabiosis to explore the effects of young and aged systemic environments on cerebromicrovascular aging in mice. We evaluated microvascular density and BBB integrity in parabiotic pairs equipped with chronic cranial windows, using intravital two-photon imaging techniques. Our results indicate that short-term exposure to young systemic factors leads to both functional and structural rejuvenation of cerebral microcirculation. Notably, we observed a marked decrease in capillary density and an increase in BBB permeability to fluorescent tracers in the cortices of aged mice undergoing isochronic parabiosis (20-month-old C57BL/6 mice [A-(A)]; 6 weeks of parabiosis), compared to young isochronic parabionts (6-month-old, [Y-(Y)]). However, aged heterochronic parabionts (A-(Y)) exposed to young blood exhibited a significant increase in cortical capillary density and restoration of BBB integrity. In contrast, young mice exposed to old blood from aged parabionts (Y-(A)) rapidly developed cerebromicrovascular aging traits, evidenced by reduced capillary density and increased BBB permeability. These findings underscore the profound impact of systemic factors in regulating cerebromicrovascular aging. The rejuvenation observed in the endothelium, following exposure to young blood, suggests the existence of anti-geronic elements that counteract microvascular aging. Conversely, pro-geronic factors in aged blood appear to accelerate cerebromicrovascular aging. Further research is needed to assess whether the rejuvenating effects of young blood factors could extend to other age-related cerebromicrovascular pathologies, such as microvascular amyloid deposition and increased microvascular fragility.
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Affiliation(s)
- Rafal Gulej
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Ádám Nyúl-Tóth
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Boglarka Csik
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Roland Patai
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Benjamin Petersen
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Sharon Negri
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Siva Sai Chandragiri
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Santny Shanmugarama
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Peter Mukli
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Andriy Yabluchanskiy
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA
| | - Shannon Conley
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Derek Huffman
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Stefano Tarantini
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA
| | - Anna Csiszar
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Zoltan Ungvari
- Vascular Cognitive Impairment, Neurodegeneration, and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary.
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK, USA.
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3
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Zheng Y, Yang D, Gao B, Huang S, Tang Y, Wa Q, Dong Y, Yu S, Huang J, Huang S. A DNA-inspired injectable adhesive hydrogel with dual nitric oxide donors to promote angiogenesis for enhanced wound healing. Acta Biomater 2024; 176:128-143. [PMID: 38278340 DOI: 10.1016/j.actbio.2024.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Abstract
Chronic diabetic wounds are a severe complication of diabetes, often leading to high treatment costs and high amputation rates. Numerous studies have revealed that nitric oxide (NO) therapy is a promising option because it favours wound revascularization. Here, base-paired injectable adhesive hydrogels (CAT) were prepared using adenine- and thymine-modified chitosan (CSA and CST). By further introducing S-nitrosoglutathione (GSNO) and binary l-arginine (bArg), we obtained a NO sustained-release hydrogel (CAT/bArg/GSON) that was more suitable for the treatment of chronic wounds. The results showed that the expression of HIF-1α and VEGF was upregulated in the CAT/bArg/GSON group, and improved blood vessel regeneration was observed, indicating an important role of NO. In addition, the research findings revealed that following treatment with the CAT/bArg/GSON hydrogel, the viability of Staphylococcus aureus and Escherichia coli decreased to 14 ± 2 % and 6 ± 1 %, respectively. Moreover, the wound microenvironment was improved, as evidenced by a 60 ± 1 % clearance of DPPH. In particular, histological examination and immunohistochemical staining results showed that wounds treated with CAT/bArg/GSNO exhibited denser neovascularization, faster epithelial tissue regeneration, and thicker collagen deposition. Overall, this study proposes an effective strategy to prepare injectable hydrogel dressings with dual NO donors. The functionality of CAT/bArg/GSON has been thoroughly demonstrated in research on chronic wound vascular regeneration, indicating that CAT/bArg/GSON could be a potential option for promoting chronic wound healing. STATEMENT OF SIGNIFICANCE: This article prepares a chitosan hydrogel utilizing the principle of complementary base pairing, which offers several advantages, including good adhesion, biocompatibility, and flow properties, making it a good material for wound dressings. Loaded GSNO and bArg can steadily release NO and l-arginine through the degradation of the gel. Then, the released l-arginine not only possesses antioxidant properties but can also continue to generate a small amount of NO under the action of NOS. This design achieves a sustained and stable supply of NO at the wound site, maximizing the angiogenesis-promoting and antibacterial effects of NO. More neovascularization and abundant collagen were observed in the regenerated tissues. This study provides an effective repair hydrogel material for diabetic wound.
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Affiliation(s)
- Yongsheng Zheng
- Department of Orthopedics, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Dong Yang
- Department of Orthopedics, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Botao Gao
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510632, China
| | - Shuai Huang
- Department of Orthopedics, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China
| | - Yubo Tang
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Qingde Wa
- Department of Orthopedics, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Yong Dong
- Department of Oncology, The First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan, 523106, China
| | - Shan Yu
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510632, China
| | - Jun Huang
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510632, China.
| | - Sheng Huang
- Department of Orthopedics, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, China.
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4
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Benabdelkamel H, Jaber MA, Akkour K, AlMalki RH, Alfadda AA, Masood A, Joy SS, Alhalal H, Alwehaibi MA, Arafah M, Alshehri E, Abdel Rahman AM. Metabolomic Profiling of Blood Plasma in Females with Hyperplasia and Endometrial Cancer. Metabolites 2024; 14:109. [PMID: 38393001 PMCID: PMC10890097 DOI: 10.3390/metabo14020109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Uterine cancer is the most prevalent gynecologic malignancy in women worldwide. Endometrial cancer (EC) has an 81% five-year survival rate, depending on disease stage and time of diagnosis. While endometrial cancer is largely treatable when detected early, no established screening techniques are available in clinical practice. As a result, one of the most significant issues in the medical field is the development of novel ways for early cancer identification, which could boost treatment success rates. Liquid chromatography-high-resolution mass spectrometry (LC-HRMS)-based metabolomics was employed to explore the metabolomic markers and pathways unique to this cancer type and link them to the benign endometrial hyperplasia that may progress to cancer in 5% to 25% of patients. The study involved 59 postmenopausal participants, 20 with EC type 1, 20 with benign hyperplasia, and 19 healthy participants. Metabolite distribution changes were analyzed, and 338 of these features were dysregulated and significant. The first two main components, PC1 and PC2, were responsible for 11.5% and 12.2% of the total metabolites, respectively. Compared with the control group (CO), EC samples had 203 differentially expressed metabolites (180 upregulated and 23 downregulated); in hyperplasia (HP), 157 metabolites were dysregulated (127 upregulated and 30 downregulated) compared to the CO group while 21 metabolites exhibited differential regulation (16 upregulated and 5 downregulated) in EC plasma samples compared to the HP group. Hyperplasia samples exhibited similar metabolic changes to those reported in cancer, except for alterations in triglyceride levels, 7a,12 b-dihydroxy-5b-Cholan-24-oic acid, and Hept-2-enedioyl carnitine levels. The metabolites N-heptanoyl glycine and -(Methylthio)-2,3-isopentyl phosphate and formimino glutamic acid can be specific markers for hyperplasia conditions and dimethyl phosphatidyl ethanolamine and 8-isoprostaglandin E2 can be specific markers for EC conditions. Metabolic activities rely on mitochondrial oxidative phosphorylation for energy generation. The changes in metabolites identified in our study indicate that endometrial cancer cells adopt alternative strategies to increase energy production to meet the energy demand, thereby supporting proliferation.
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Affiliation(s)
- Hicham Benabdelkamel
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia
| | - Malak A Jaber
- Pharmaceutical Medicinal Chemistry & Pharmacognosy, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman 1196, Jordan
| | - Khalid Akkour
- Obstetrics and Gynecology Department, College of Medicine, King Saud University Medical City, King Saud University, Riyadh 11461, Saudi Arabia
| | - Reem H AlMalki
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11461, Saudi Arabia
| | - Assim A Alfadda
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia
- Department of Medicine, College of Medicine, King Saud University Medical City, King Saud University, Riyadh 11461, Saudi Arabia
| | - Afshan Masood
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia
| | - Salini Scaria Joy
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia
| | - Hani Alhalal
- Obstetrics and Gynecology Department, College of Medicine, King Saud University Medical City, King Saud University, Riyadh 11461, Saudi Arabia
| | - Moudi A Alwehaibi
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia
| | - Maria Arafah
- Department of Pathology, College of Medicine, King Saud University Medical City, King Saud University, Riyadh 11461, Saudi Arabia
| | - Eman Alshehri
- Obstetrics and Gynecology Department, College of Medicine, King Saud University Medical City, King Saud University, Riyadh 11461, Saudi Arabia
| | - Anas M Abdel Rahman
- Metabolomics Section, Department of Clinical Genomics, Center for Genome Medicine, King Faisal Specialist Hospital and Research Centre (KFSHRC), Riyadh 11211, Saudi Arabia
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5
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Braun H, Hauke M, Petermann M, Eckenstaler R, Ripperger A, Schwedhelm E, Ludwig-Kraus B, Bernhard Kraus F, Jalal Ahmed Shawon M, Dubourg V, Zernecke A, Schreier B, Gekle M, Benndorf RA. Deletion of vascular thromboxane A 2 receptors and its impact on angiotensin II-induced hypertension and atherosclerotic lesion formation in the aorta of Ldlr-deficient mice. Biochem Pharmacol 2024; 219:115916. [PMID: 37979705 DOI: 10.1016/j.bcp.2023.115916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023]
Abstract
The thromboxane A2 receptor (TP) has been shown to play a role in angiotensin II (Ang II)-mediated hypertension and pathological vascular remodeling. To assess the impact of vascular TP on Ang II-induced hypertension, atherogenesis, and pathological aortic alterations, i.e. aneurysms, we analysed Western-type diet-fed and Ang II-infused TPVSMC KO/Ldlr KO, TPEC KO/Ldlr KO mice and their respective wild-type littermates (TPWT/Ldlr KO). These analyses showed that neither EC- nor VSMC-specific deletion of the TP significantly affected basal or Ang II-induced blood pressure or aortic atherosclerotic lesion area. In contrast, VSMC-specific TP deletion abolished and EC-specific TP deletion surprisingly reduced the ex vivo reactivity of aortic rings to the TP agonist U-46619, whereas VSMC-specific TP knockout also diminished the ex vivo response of aortic rings to Ang II. Furthermore, despite similar systemic blood pressure, there was a trend towards less atherogenesis in the aortic arch and a trend towards fewer pathological aortic alterations in Ang II-treated female TPVSMC KO/Ldlr KO mice. Survival was impaired in male mice after Ang II infusion and tended to be higher in TPVSMC KO/Ldlr KO mice than in TPWT/Ldlr KO littermates. Thus, our data may suggest a deleterious role of the TP expressed in VSMC in the pathogenesis of Ang II-induced aortic atherosclerosis in female mice, and a surprising role of the endothelial TP in TP-mediated aortic contraction. However, future studies are needed to substantiate and further elucidate the role of the vascular TP in the pathogenesis of Ang II-induced hypertension, aortic atherosclerosis and aneurysm formation.
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Affiliation(s)
- Heike Braun
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Michael Hauke
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany; Center for Translational Medicine, Department of Neurology and Pain Therapy, Brandenburg Medical School, Rüdersdorf, Germany
| | - Markus Petermann
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Robert Eckenstaler
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Anne Ripperger
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Edzard Schwedhelm
- Institute of Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | | | | | - Md Jalal Ahmed Shawon
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Virginie Dubourg
- Julius-Bernstein-Institute of Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Alma Zernecke
- Institute of Experimental Biomedicine, University Hospital Würzburg, Würzburg 97080, Germany
| | - Barbara Schreier
- Julius-Bernstein-Institute of Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Michael Gekle
- Julius-Bernstein-Institute of Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Ralf A Benndorf
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
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Zhu S, Li M, Wang Z, Feng Q, Gao H, Li Q, Chen X, Cao X. Bioactive Glasses-Based Nanozymes Composite Macroporous Cryogel with Antioxidative, Antibacterial, and Pro-Healing Properties for Diabetic Infected Wound Repair. Adv Healthc Mater 2023; 12:e2302073. [PMID: 37589595 DOI: 10.1002/adhm.202302073] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/08/2023] [Indexed: 08/18/2023]
Abstract
The treatment for diabetic ulcers still remains a big clinic challenge owing to the adverse repair microenvironment. Bioactive glasses (BGs) play an important role in the late stages of healing due to their ability to promote vascularization and collagen fiber deposition, but fail to improve infection and oxidative stress in the early stage.Therefore, it is critical to develop a material involved in regulating the whole healing phases. In this work, BGs-based nanozymes (MnO2 @PDA-BGs) with antioxidation, antibacterial and pro-healing abilities are synthesized by the redox deposition of MnO2 on mesoporous BGs. Afterward, cryogel with the interconnected macropore structure is fabricated by the polymerization of methacrylate anhydride gelatin (GelMA) at -20 °C. MnO2 @PDA-BGs are loaded into the cryogel to obtain nanocomposite cryogel (MnO2 @PDA-BGs/Gel) with multiple enzymes-like- activities to eliminate reactive oxygen species (ROS). Besides, MnO2 @PDA-BGs/Gel has intensive peroxidase-like activity under acidic condition and near infrared photothermal responsiveness to achieve excellent antibacterial performance. Cells experiments demonstrate that MnO2 @PDA-BGs/Gel recruits L929s and promotes their proliferation. Furthermore, MnO2 @PDA-BGs/Gel eliminates intracellular overexpressed ROS and maintains the viability of L929s. Animal experiments confirm that MnO2 @PDA-BGs/Gel promotes wound healing and avoided scarring by killing bacteria, reversing inflammation, promoting vascularization, and improving the deposition of collagen III.
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Affiliation(s)
- Shuangli Zhu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Maocai Li
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Zetao Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Qi Feng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Huichang Gao
- School of Medicine, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Qingtao Li
- School of Medicine, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Xiaofeng Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Xiaodong Cao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Zhongshan Institute of Modern Industrial Technology of SCUT, Zhongshan, Guangdong, 528437, P. R. China
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7
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Ashton AW. Preparing to strike: Acute events in signaling by the serpentine receptor for thromboxane A 2. Pharmacol Ther 2023:108478. [PMID: 37321373 DOI: 10.1016/j.pharmthera.2023.108478] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/31/2023] [Accepted: 06/07/2023] [Indexed: 06/17/2023]
Abstract
Over the last two decades, awareness of the (patho)physiological roles of thromboxane A2 signaling has been greatly extended. From humble beginnings as a short-lived stimulus that activates platelets and causes vasoconstriction to a dichotomous receptor system involving multiple endogenous ligands capable of modifying tissue homeostasis and disease generation in almost every tissue of the body. Thromboxane A2 receptor (TP) signal transduction is associated with the pathogenesis of cancer, atherosclerosis, heart disease, asthma, and host response to parasitic infection amongst others. The two receptors mediating these cellular responses (TPα and TPβ) are derived from a single gene (TBXA2R) through alternative splicing. Recently, knowledge about the mechanism(s) of signal propagation by the two receptors has undergone a revolution in understanding. Not only have the structural relationships associated with G-protein coupling been established but the modulation of that signaling by post-translational modification to the receptor has come sharply into focus. Moreover, the signaling of the receptor unrelated to G-protein coupling has become a burgeoning field of endeavor with over 70 interacting proteins currently identified. These data are reshaping the concept of TP signaling from a mere guanine nucleotide exchange factors for Gα activation to a nexus for the convergence of diverse and poorly characterized signaling pathways. This review summarizes the advances in understanding in TP signaling, and the potential for new growth in a field that after almost 50 years is finally coming of age.
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Affiliation(s)
- Anthony W Ashton
- Division of Cardiovascular Medicine, Lankenau Institute for Medical Research, Rm 128, 100 E Lancaster Ave, Wynnewood, PA 19096, USA; Division of Perinatal Research, Kolling Institute of Medical Research, Faculty of Medicine and Health, University of Sydney, St Leonards, NSW 2065, Australia.
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The Role and Regulation of Thromboxane A2 Signaling in Cancer-Trojan Horses and Misdirection. Molecules 2022; 27:molecules27196234. [PMID: 36234768 PMCID: PMC9573598 DOI: 10.3390/molecules27196234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/09/2022] [Accepted: 09/09/2022] [Indexed: 11/24/2022] Open
Abstract
Over the last two decades, there has been an increasing awareness of the role of eicosanoids in the development and progression of several types of cancer, including breast, prostate, lung, and colorectal cancers. Several processes involved in cancer development, such as cell growth, migration, and angiogenesis, are regulated by the arachidonic acid derivative thromboxane A2 (TXA2). Higher levels of circulating TXA2 are observed in patients with multiple cancers, and this is accompanied by overexpression of TXA2 synthase (TBXAS1, TXA2S) and/or TXA2 receptors (TBXA2R, TP). Overexpression of TXA2S or TP in tumor cells is generally associated with poor prognosis, reduced survival, and metastatic disease. However, the role of TXA2 signaling in the stroma during oncogenesis has been underappreciated. TXA2 signaling regulates the tumor microenvironment by modulating angiogenic potential, tumor ECM stiffness, and host immune response. Moreover, the by-products of TXA2S are highly mutagenic and oncogenic, adding to the overall phenotype where TXA2 synthesis promotes tumor formation at various levels. The stability of synthetic enzymes and receptors in this pathway in most cancers (with few mutations reported) suggests that TXA2 signaling is a viable target for adjunct therapy in various tumors to reduce immune evasion, primary tumor growth, and metastasis.
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Hauke M, Eckenstaler R, Ripperger A, Ender A, Braun H, Benndorf RA. Active RhoA Exerts an Inhibitory Effect on the Homeostasis and Angiogenic Capacity of Human Endothelial Cells. J Am Heart Assoc 2022; 11:e025119. [PMID: 35699166 PMCID: PMC9238636 DOI: 10.1161/jaha.121.025119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Background The small GTPase RhoA (Ras homolog gene family, member A) regulates a variety of cellular processes, including cell motility, proliferation, survival, and permeability. In addition, there are reports indicating that RhoA‐ROCK (rho associated coiled‐coil containing protein kinase) activation is essential for VEGF (vascular endothelial growth factor)‐mediated angiogenesis, whereas other work suggests VEGF‐antagonistic effects of the RhoA‐ROCK axis. Methods and Results To elucidate this issue, we examined human umbilical vein endothelial cells and human coronary artery endothelial cells after stable overexpression (lentiviral transduction) of constitutively active (G14V/Q63L), dominant‐negative (T19N), or wild‐type RhoA using a series of in vitro angiogenesis assays (proliferation, migration, tube formation, angiogenic sprouting, endothelial cell viability) and a human umbilical vein endothelial cells xenograft assay in immune‐incompetent NOD scid gamma mice in vivo. Here, we report that expression of active and wild‐type RhoA but not dominant‐negative RhoA significantly inhibited endothelial cell proliferation, migration, tube formation, and angiogenic sprouting in vitro. Moreover, active RhoA increased endothelial cell death in vitro and decreased human umbilical vein endothelial cell‐related angiogenesis in vivo. Inhibition of RhoA by C3 transferase antagonized the inhibitory effects of RhoA and strongly enhanced VEGF‐induced angiogenic sprouting in control‐treated cells. In contrast, inhibition of RhoA effectors ROCK1/2 and LIMK1/2 (LIM domain kinase 1/2) did not significantly affect RhoA‐related effects, but increased angiogenic sprouting and migration of control‐treated cells. In agreement with these data, VEGF did not activate RhoA in human umbilical vein endothelial cells as measured by a Förster resonance energy transfer–based biosensor. Furthermore, global transcriptome and subsequent bioinformatic gene ontology enrichment analyses revealed that constitutively active RhoA induced a differentially expressed gene pattern that was enriched for gene ontology biological process terms associated with mitotic nuclear division, cell proliferation, cell motility, and cell adhesion, which included a significant decrease in VEGFR‐2 (vascular endothelial growth factor receptor 2) and NOS3 (nitric oxide synthase 3) expression. Conclusions Our data demonstrate that increased RhoA activity has the potential to trigger endothelial dysfunction and antiangiogenic effects independently of its well‐characterized downstream effectors ROCK and LIMK.
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Affiliation(s)
- Michael Hauke
- Department of Clinical Pharmacy and PharmacotherapyInstitute of PharmacyMartin‐Luther‐University Halle‐WittenbergHalle (Saale)Germany
| | - Robert Eckenstaler
- Department of Clinical Pharmacy and PharmacotherapyInstitute of PharmacyMartin‐Luther‐University Halle‐WittenbergHalle (Saale)Germany
| | - Anne Ripperger
- Department of Clinical Pharmacy and PharmacotherapyInstitute of PharmacyMartin‐Luther‐University Halle‐WittenbergHalle (Saale)Germany
| | - Anna Ender
- Department of Clinical Pharmacy and PharmacotherapyInstitute of PharmacyMartin‐Luther‐University Halle‐WittenbergHalle (Saale)Germany
| | - Heike Braun
- Department of Clinical Pharmacy and PharmacotherapyInstitute of PharmacyMartin‐Luther‐University Halle‐WittenbergHalle (Saale)Germany
| | - Ralf A. Benndorf
- Department of Clinical Pharmacy and PharmacotherapyInstitute of PharmacyMartin‐Luther‐University Halle‐WittenbergHalle (Saale)Germany
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Braun H, Hauke M, Eckenstaler R, Petermann M, Ripperger A, Kühn N, Schwedhelm E, Ludwig-Kraus B, Kraus FB, Dubourg V, Zernecke A, Schreier B, Gekle M, Benndorf RA. The F2-isoprostane 8-iso-PGF 2α attenuates atherosclerotic lesion formation in Ldlr-deficient mice - Potential role of vascular thromboxane A 2 receptors. Free Radic Biol Med 2022; 185:36-45. [PMID: 35470061 DOI: 10.1016/j.freeradbiomed.2022.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 10/18/2022]
Abstract
The F2-isoprostane 8-iso-PGF2α (also known as 15-F2t-isoprostane, iPF2α-III, 8-epi PGF2α, 15(S)-8-iso-PGF2α, or 8-Isoprostane), a thromboxane A2 receptor (TP) agonist, stable biomarker of oxidative stress, and risk marker of cardiovascular disease, has been proposed to aggravate atherogenesis in genetic mouse models of atherosclerotic vascular disease. Moreover, the TP plays an eminent role in the pathophysiology of endothelial dysfunction, atherogenesis, and cardiovascular disease. Yet it is unknown, how the TP expressed by vascular cells affects atherogenesis or 8-iso-PGF2α-related effects in mouse models of atherosclerosis. We studied Ldlr-deficient vascular endothelial-specific (EC) and vascular smooth muscle cell (VSMC)-specific TP knockout mice (TPECKO/Ldlr KO; TPVSMCKO/Ldlr KO) and corresponding wild-type littermates (TPWT/Ldlr KO). The mice were fed a Western-type diet for eight weeks and received either 8-iso-PGF2α or vehicle infusions via osmotic pumps. Subsequently, arterial blood pressure, atherosclerotic lesion formation, and lipid profiles were analyzed. We found that VSMC-, but not EC-specific TP deletion, attenuated atherogenesis without affecting blood pressure or plasma lipid profiles of the mice. In contrast to a previous report, 8-iso-PGF2α tended to reduce atherogenesis in TPWT/Ldlr KO and TPEC KO/Ldlr KO mice, again without significantly affecting blood pressure or lipid profiles of these mice. However, no further reduction in atherogenesis was observed in 8-iso-PGF2α-treated TPVSMC KO/Ldlr KO mice. Our work suggests that the TP expressed in VSMC but not the TP expressed in EC is involved in atherosclerotic lesion formation in Ldlr-deficient mice. Furthermore, we report an inhibitory effect of 8-iso-PGF2α on atherogenesis in this experimental atherosclerosis model, which paradoxically appears to be related to the presence of the TP in VSMC.
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Affiliation(s)
- Heike Braun
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Michael Hauke
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Robert Eckenstaler
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Markus Petermann
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Anne Ripperger
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Niklas Kühn
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Edzard Schwedhelm
- Institute of Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | | | - Virginie Dubourg
- Julius-Bernstein-Institute of Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Alma Zernecke
- Institute of Experimental Biomedicine, University Hospital Würzburg, Würzburg, Germany
| | - Barbara Schreier
- Julius-Bernstein-Institute of Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Michael Gekle
- Julius-Bernstein-Institute of Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Ralf A Benndorf
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
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11
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Ye Q, Zhang J, Zhang C, Yi B, Kazama K, Liu W, Sun X, Liu Y, Sun J. Endothelial PRMT5 plays a crucial role in angiogenesis after acute ischemic injury. JCI Insight 2022; 7:e152481. [PMID: 35531958 PMCID: PMC9090242 DOI: 10.1172/jci.insight.152481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 04/06/2022] [Indexed: 11/17/2022] Open
Abstract
Arginine methylation mediated by protein arginine methyltransferases (PRMTs) has been shown to be an important posttranslational mechanism involved in various biological processes. Herein, we sought to investigate whether PRMT5, a major type II enzyme, is involved in pathological angiogenesis and, if so, to elucidate the molecular mechanism involved. Our results show that PRMT5 expression is significantly upregulated in ischemic tissues and hypoxic endothelial cells (ECs). Endothelial-specific Prmt5-KO mice were generated to define the role of PRMT5 in hindlimb ischemia-induced angiogenesis. We found that these mice exhibited impaired recovery of blood perfusion and motor function of the lower limbs, an impairment that was accompanied by decreased vascular density and increased necrosis as compared with their WT littermates. Furthermore, both pharmacological and genetic inhibition of PRMT5 significantly attenuated EC proliferation, migration, tube formation, and aortic ring sprouting. Mechanistically, we showed that inhibition of PRMT5 markedly attenuated hypoxia-induced factor 1-α (HIF-1α) protein stability and vascular endothelial growth factor-induced (VEGF-induced) signaling pathways in ECs. Our results provide compelling evidence demonstrating a crucial role of PRMT5 in hypoxia-induced angiogenesis and suggest that inhibition of PRMT5 may provide novel therapeutic strategies for the treatment of abnormal angiogenesis-related diseases, such as cancer and diabetic retinopathy.
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Affiliation(s)
- Qing Ye
- Department of Clinical Pharmacy, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jian Zhang
- Department of Clinical Pharmacy, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Zhang
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Bing Yi
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Kyosuke Kazama
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Wennan Liu
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Xiaobo Sun
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Yan Liu
- Department of Clinical Pharmacy, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianxin Sun
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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12
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Eckenstaler R, Ripperger A, Hauke M, Braun H, Ergün S, Schwedhelm E, Benndorf RA. Thromboxane A 2 receptor activation via G α13-RhoA/C-ROCK-LIMK2-dependent signal transduction inhibits angiogenic sprouting of human endothelial cells. Biochem Pharmacol 2022; 201:115069. [PMID: 35525325 DOI: 10.1016/j.bcp.2022.115069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 12/13/2022]
Abstract
We could previously show that thromboxane A2 receptor (TP) activation inhibits the angiogenic capacity of human endothelial cells, but the underlying mechanisms remained unclear. Therefore, the aim of this study was to elucidate TP signal transduction pathways relevant to angiogenic sprouting of human endothelial cells. To clarify this matter, we used RNAi-mediated gene silencing as well as pharmacological inhibition of potential TP downstream targets in human umbilical vein endothelial cells (HUVEC) and VEGF-induced angiogenic sprouting of HUVEC spheroids in vitro as a functional read-out. In this experimental set-up, the TP agonist U-46619 completely blocked VEGF-induced angiogenic sprouting of HUVEC spheroids. Moreover, in live-cell analyses TP activation induced endothelial cell contraction, sprout retraction as well as endothelial cell tension and focal adhesion dysregulation of HUVEC. These effects were reversed by pharmacological TP inhibition or TP knockdown. Moreover, we identified a TP-Gα13-RhoA/C-ROCK-LIMK2-dependent signal transduction pathway to be relevant for U-46619-induced inhibition of VEGF-mediated HUVEC sprouting. In line with these results, U-46619-mediated TP activation potently induced RhoA and RhoC activity in live HUVEC as measured by FRET biosensors. Interestingly, pharmacological inhibition of ROCK and LIMK2 also normalized U-46619-induced endothelial cell tension and focal adhesion dysregulation of HUVEC. In summary, our work reveals mechanisms by which the TP may disturb angiogenic endothelial function in disease states associated with sustained endothelial TP activation.
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Affiliation(s)
- Robert Eckenstaler
- Martin-Luther-University Halle-Wittenberg, Department of Clinical Pharmacy and Pharmacotherapy, Halle (Saale), Germany
| | - Anne Ripperger
- Martin-Luther-University Halle-Wittenberg, Department of Clinical Pharmacy and Pharmacotherapy, Halle (Saale), Germany
| | - Michael Hauke
- Martin-Luther-University Halle-Wittenberg, Department of Clinical Pharmacy and Pharmacotherapy, Halle (Saale), Germany
| | - Heike Braun
- Martin-Luther-University Halle-Wittenberg, Department of Clinical Pharmacy and Pharmacotherapy, Halle (Saale), Germany
| | - Süleyman Ergün
- Institute of Anatomy and Cell Biology, Julius-Maximilians-University, Würzburg, Germany
| | - Edzard Schwedhelm
- Institute of Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ralf A Benndorf
- Martin-Luther-University Halle-Wittenberg, Department of Clinical Pharmacy and Pharmacotherapy, Halle (Saale), Germany.
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13
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Eckenstaler R, Ripperger A, Hauke M, Petermann M, Hemkemeyer SA, Schwedhelm E, Ergün S, Frye M, Werz O, Koeberle A, Braun H, Benndorf RA. A Thromboxane A 2 Receptor-Driven COX-2-Dependent Feedback Loop That Affects Endothelial Homeostasis and Angiogenesis. Arterioscler Thromb Vasc Biol 2022; 42:444-461. [PMID: 35236104 PMCID: PMC8939709 DOI: 10.1161/atvbaha.121.317380] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND TP (thromboxane A2 receptor) plays an eminent role in the pathophysiology of endothelial dysfunction and cardiovascular disease. Moreover, its expression is reported to increase in the intimal layer of blood vessels of cardiovascular high-risk individuals. Yet it is unknown, whether TP upregulation per se has the potential to affect the homeostasis of the vascular endothelium. METHODS We combined global transcriptome analysis, lipid mediator profiling, functional cell analyses, and in vivo angiogenesis assays to study the effects of endothelial TP overexpression or knockdown/knockout on the angiogenic capacity of endothelial cells in vitro and in vivo. RESULTS Here we report that endothelial TP expression induces COX-2 (cyclooxygenase-2) in a Gi/o- and Gq/11-dependent manner, thereby promoting its own activation via the auto/paracrine release of TP agonists, such as PGH2 (prostaglandin H2) or prostaglandin F2 but not TxA2 (thromboxane A2). TP overexpression induces endothelial cell tension and aberrant cell morphology, affects focal adhesion dynamics, and inhibits the angiogenic capacity of human endothelial cells in vitro and in vivo, whereas TP knockdown or endothelial-specific TP knockout exerts opposing effects. Consequently, this TP-dependent feedback loop is disrupted by pharmacological TP or COX-2 inhibition and by genetic reconstitution of PGH2-metabolizing prostacyclin synthase even in the absence of functional prostacyclin receptor expression. CONCLUSIONS Our work uncovers a TP-driven COX-2-dependent feedback loop and important effector mechanisms that directly link TP upregulation to angiostatic TP signaling in endothelial cells. By these previously unrecognized mechanisms, pathological endothelial upregulation of the TP could directly foster endothelial dysfunction, microvascular rarefaction, and systemic hypertension even in the absence of exogenous sources of TP agonists.
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Affiliation(s)
- Robert Eckenstaler
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Germany (R.E., A.R., M.H., M.P., H.B., R.A.B.)
| | - Anne Ripperger
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Germany (R.E., A.R., M.H., M.P., H.B., R.A.B.)
| | - Michael Hauke
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Germany (R.E., A.R., M.H., M.P., H.B., R.A.B.)
| | - Markus Petermann
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Germany (R.E., A.R., M.H., M.P., H.B., R.A.B.)
| | - Sandra A Hemkemeyer
- Institute of Clinical Chemistry and Laboratory Medicine (S.A.H., M.F.), University Medical Center Hamburg-Eppendorf, Germany
| | - Edzard Schwedhelm
- Institute of Clinical Pharmacology and Toxicology (E.S.), University Medical Center Hamburg-Eppendorf, Germany
| | - Süleyman Ergün
- Institute of Anatomy and Cell Biology, Julius-Maximilians-University Würzburg, Germany (S.E.)
| | - Maike Frye
- Institute of Clinical Chemistry and Laboratory Medicine (S.A.H., M.F.), University Medical Center Hamburg-Eppendorf, Germany
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Germany (O.W., A.K.)
| | - Andreas Koeberle
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Germany (O.W., A.K.).,Michael Popp Institute and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Austria (A.K.)
| | - Heike Braun
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Germany (R.E., A.R., M.H., M.P., H.B., R.A.B.)
| | - Ralf A Benndorf
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Germany (R.E., A.R., M.H., M.P., H.B., R.A.B.)
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Rovati G, Contursi A, Bruno A, Tacconelli S, Ballerini P, Patrignani P. Antiplatelet Agents Affecting GPCR Signaling Implicated in Tumor Metastasis. Cells 2022; 11:725. [PMID: 35203374 PMCID: PMC8870128 DOI: 10.3390/cells11040725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/10/2022] [Accepted: 02/16/2022] [Indexed: 11/16/2022] Open
Abstract
Metastasis requires that cancer cells survive in the circulation, colonize distant organs, and grow. Despite platelets being central contributors to hemostasis, leukocyte trafficking during inflammation, and vessel stability maintenance, there is significant evidence to support their essential role in supporting metastasis through different mechanisms. In addition to their direct interaction with cancer cells, thus forming heteroaggregates such as leukocytes, platelets release molecules that are necessary to promote a disseminating phenotype in cancer cells via the induction of an epithelial-mesenchymal-like transition. Therefore, agents that affect platelet activation can potentially restrain these prometastatic mechanisms. Although the primary adhesion of platelets to cancer cells is mainly independent of G protein-mediated signaling, soluble mediators released from platelets, such as ADP, thromboxane (TX) A2, and prostaglandin (PG) E2, act through G protein-coupled receptors (GPCRs) to cause the activation of more additional platelets and drive metastatic signaling pathways in cancer cells. In this review, we examine the contribution of the GPCRs of platelets and cancer cells in the development of cancer metastasis. Finally, the possible use of agents affecting GPCR signaling pathways as antimetastatic agents is discussed.
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Affiliation(s)
- Gianenrico Rovati
- Department of Pharmaceutical Sciences, University of Milan, 20122 Milan, Italy;
| | - Annalisa Contursi
- Laboratory of Systems Pharmacology and Translational Therapies, Center for Advanced Studies and Technology (CAST), School of Medicine, “G. d’Annunzio” University, 66100 Chieti, Italy; (A.C.); (A.B.); (S.T.); (P.B.)
- Department of Neuroscience, Imaging and Clinical Science, School of Medicine, “G. d’Annunzio” University, 66100 Chieti, Italy
| | - Annalisa Bruno
- Laboratory of Systems Pharmacology and Translational Therapies, Center for Advanced Studies and Technology (CAST), School of Medicine, “G. d’Annunzio” University, 66100 Chieti, Italy; (A.C.); (A.B.); (S.T.); (P.B.)
- Department of Neuroscience, Imaging and Clinical Science, School of Medicine, “G. d’Annunzio” University, 66100 Chieti, Italy
| | - Stefania Tacconelli
- Laboratory of Systems Pharmacology and Translational Therapies, Center for Advanced Studies and Technology (CAST), School of Medicine, “G. d’Annunzio” University, 66100 Chieti, Italy; (A.C.); (A.B.); (S.T.); (P.B.)
- Department of Neuroscience, Imaging and Clinical Science, School of Medicine, “G. d’Annunzio” University, 66100 Chieti, Italy
| | - Patrizia Ballerini
- Laboratory of Systems Pharmacology and Translational Therapies, Center for Advanced Studies and Technology (CAST), School of Medicine, “G. d’Annunzio” University, 66100 Chieti, Italy; (A.C.); (A.B.); (S.T.); (P.B.)
- Department of Innovative Technologies in Medicine and Dentistry, “G. d’Annunzio” University, 66100 Chieti, Italy
| | - Paola Patrignani
- Laboratory of Systems Pharmacology and Translational Therapies, Center for Advanced Studies and Technology (CAST), School of Medicine, “G. d’Annunzio” University, 66100 Chieti, Italy; (A.C.); (A.B.); (S.T.); (P.B.)
- Department of Neuroscience, Imaging and Clinical Science, School of Medicine, “G. d’Annunzio” University, 66100 Chieti, Italy
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15
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Braun H, Hauke M, Ripperger A, Ihling C, Fuszard M, Eckenstaler R, Benndorf RA. Impact of DICER1 and DROSHA on the Angiogenic Capacity of Human Endothelial Cells. Int J Mol Sci 2021; 22:ijms22189855. [PMID: 34576018 PMCID: PMC8471234 DOI: 10.3390/ijms22189855] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 12/15/2022] Open
Abstract
RNAi-mediated knockdown of DICER1 and DROSHA, enzymes critically involved in miRNA biogenesis, has been postulated to affect the homeostasis and the angiogenic capacity of human endothelial cells. To re-evaluate this issue, we reduced the expression of DICER1 or DROSHA by RNAi-mediated knockdown and subsequently investigated the effect of these interventions on the angiogenic capacity of human umbilical vein endothelial cells (HUVEC) in vitro (proliferation, migration, tube formation, endothelial cell spheroid sprouting) and in a HUVEC xenograft assay in immune incompetent NSGTM mice in vivo. In contrast to previous reports, neither knockdown of DICER1 nor knockdown of DROSHA profoundly affected migration or tube formation of HUVEC or the angiogenic capacity of HUVEC in vivo. Furthermore, knockdown of DICER1 and the combined knockdown of DICER1 and DROSHA tended to increase VEGF-induced BrdU incorporation and induced angiogenic sprouting from HUVEC spheroids. Consistent with these observations, global proteomic analyses showed that knockdown of DICER1 or DROSHA only moderately altered HUVEC protein expression profiles but additively reduced, for example, expression of the angiogenesis inhibitor thrombospondin-1. In conclusion, global reduction of miRNA biogenesis by knockdown of DICER1 or DROSHA does not inhibit the angiogenic capacity of HUVEC. Further studies are therefore needed to elucidate the influence of these enzymes in the context of human endothelial cell-related angiogenesis.
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Affiliation(s)
- Heike Braun
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, 06120 Halle (Saale), Germany; (H.B.); (M.H.); (A.R.); (R.E.)
| | - Michael Hauke
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, 06120 Halle (Saale), Germany; (H.B.); (M.H.); (A.R.); (R.E.)
| | - Anne Ripperger
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, 06120 Halle (Saale), Germany; (H.B.); (M.H.); (A.R.); (R.E.)
| | - Christian Ihling
- Department of Pharmaceutical Chemistry and Bioanalytics, Institute of Pharmacy, Charles Tanford Center, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany;
| | - Matthew Fuszard
- Core Facility—Proteomics Mass Spectrometry, Charles Tanford Centre, Martin-Luther-University Halle-Wittenberg, 06120 Halle (Saale), Germany;
| | - Robert Eckenstaler
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, 06120 Halle (Saale), Germany; (H.B.); (M.H.); (A.R.); (R.E.)
| | - Ralf A. Benndorf
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, 06120 Halle (Saale), Germany; (H.B.); (M.H.); (A.R.); (R.E.)
- Correspondence: ; Tel.: +49-345-55-25150
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16
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Yuan A, Xia F, Bian Q, Wu H, Gu Y, Wang T, Wang R, Huang L, Huang Q, Rao Y, Ling D, Li F, Gao J. Ceria Nanozyme-Integrated Microneedles Reshape the Perifollicular Microenvironment for Androgenetic Alopecia Treatment. ACS NANO 2021; 15:13759-13769. [PMID: 34279913 DOI: 10.1021/acsnano.1c05272] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Androgenetic alopecia (AGA) is highly prevalent in current society but lacks effective treatments. The dysregulation of the hair follicle niche induced by excessive reactive oxygen species (ROS) and insufficient vascularization in the perifollicular microenvironment is the leading cause of AGA. Herein, we designed a ceria nanozyme (CeNZ)-integrated microneedles patch (Ce-MNs) that can alleviate oxidative stress and promote angiogenesis simultaneously to reshape the perifollicular microenvironment for AGA treatment. On the basis of the excellent mechanical strength of Ce-MNs, the encapsulated CeNZs with catalase- and superoxide-mimic activities can be efficiently delivered into skin to scavenge excessive ROS. Moreover, the mechanical stimulation induced by the administration of MNs can remodel the microvasculature in the balding region. Compared with minoxidil, a widely used clinical drug for AGA treatment, Ce-MNs exhibited accelerated hair regeneration in the AGA mouse model at a lower administration frequency without inducing significant skin damage. Consequently, such a safe and perifollicular microenvironment-shaping MNs patch shows great potential for clinical AGA treatment.
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Affiliation(s)
- Anran Yuan
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Fan Xia
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qiong Bian
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Haibin Wu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yueting Gu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Tao Wang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ruxuan Wang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lingling Huang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qiaoling Huang
- Hangzhou Third People's Hospital, Hangzhou 310009, China
| | - Yuefeng Rao
- Department of Clinical Pharmacy, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Daishun Ling
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Fangyuan Li
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jianqing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Jiangsu Engineering Research Center for New-type External and Transdermal Preparations, Changzhou 213149, China
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17
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Mustafa G, Cai CL, Bodkin D, Aranda JV, Beharry KD. Antioxidants and/or fish oil reduce intermittent hypoxia-induced inflammation in the neonatal rat terminal ileum. Prostaglandins Other Lipid Mediat 2021; 155:106565. [PMID: 34051366 DOI: 10.1016/j.prostaglandins.2021.106565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 04/29/2021] [Accepted: 05/21/2021] [Indexed: 12/16/2022]
Abstract
Intermittent hypoxia (IH) is associated with the pathogenesis of necrotizing enterocolitis (NEC). We tested the hypothesis that early supplementation with antioxidants and/or fish oil protects the terminal ileum from oxidative injury induced by neonatal IH. Newborn rats were exposed to neonatal IH from birth (P0) until P14 during which they received daily fish oil, coenzyme Q10 (CoQ10), glutathione nanoparticles (nGSH), fish oil + CoQ10, or olive oil. Pups were then placed in room air from P14 to P21 with no further supplementation. Terminal ileum was assessed for IH-induced injury and inflammatory biomarkers. Neonatal IH induced severe damage consistent with NEC, and was associated with oxidative stress and elevations in PGE2, PGF2α, TxB2, NOS-2 and TLR-4, effects that were ameliorated with nGSH and combination CoQ10+fish oil. Early postnatal supplementation with antioxidants and/or fish oil during neonatal IH may be favorable for preserving gut integrity and reducing oxidative injury.
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Affiliation(s)
- Ghassan Mustafa
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY, USA
| | - Charles L Cai
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY, USA
| | - Darren Bodkin
- Department of Pediatrics, State University of New York, Downstate Medical Center, Brooklyn, NY, USA
| | - Jacob V Aranda
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY, USA; Department of Ophthalmology, State University of New York, Downstate Medical Center, Brooklyn, NY, USA
| | - Kay D Beharry
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY, USA; Department of Ophthalmology, State University of New York, Downstate Medical Center, Brooklyn, NY, USA.
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Peripancreatic Adipose Tissue Remodeling and Inflammation during High Fat Intake of Palm Oils or Lard in Rats. Nutrients 2021; 13:nu13041134. [PMID: 33808251 PMCID: PMC8065769 DOI: 10.3390/nu13041134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/19/2021] [Accepted: 03/25/2021] [Indexed: 12/25/2022] Open
Abstract
Excessive fat consumption leads to the development of ectopic adipose tissues, affecting the organs they surround. Peripancreatic adipose tissue is implicated in glucose homeostasis regulation and can be impaired in obesity. High palm oil consumption's effects on health are still debated. We hypothesised that crude and refined palm oil high-fat feeding may have contrasting effects on peripancreatic adipocyte hypertrophy, inflammation and lipid oxidation compound production in obese rats. In Wistar rats, morphological changes, inflammation and isoprostanoid production following oxidative stress were assessed in peripancreatic adipose tissue after 12 weeks of diets enriched in crude or refined palm oil or lard (56% energy from fat in each case) versus a standard chow diet (11% energy from fat). Epididymal white and periaortic brown adipose tissues were also included in the study. A refined palm oil diet disturbed glucose homeostasis and promoted lipid deposition in periaortic locations, as well as adipocyte hypertrophy, macrophage infiltration and isoprostanoid (5-F2c-isoprostane and 7(RS)-ST-Δ8-11-dihomo-isofuran) production in peripancreatic adipose tissue. Crude palm oil induced a lower impact on adipose deposits than its refined form and lard. Our results show that the antioxidant composition of crude palm oil may have a protective effect on ectopic adipose tissues under the condition of excessive fat intake.
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Putman AK, Contreras GA, Sordillo LM. Isoprostanes in Veterinary Medicine: Beyond a Biomarker. Antioxidants (Basel) 2021; 10:antiox10020145. [PMID: 33498324 PMCID: PMC7909258 DOI: 10.3390/antiox10020145] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/16/2021] [Accepted: 01/18/2021] [Indexed: 11/21/2022] Open
Abstract
Oxidative stress has been associated with many pathologies, in both human and animal medicine. Damage to tissue components such as lipids is a defining feature of oxidative stress and can lead to the generation of many oxidized products, including isoprostanes (IsoP). First recognized in the early 1990s, IsoP are formed in numerous biological fluids and tissues, chemically stable, and easily measured by noninvasive means. Additionally, IsoP are highly specific indicators of lipid peroxidation and thereby are regarded as excellent biomarkers of oxidative stress. Although there have been many advancements in the detection and use of IsoP as a biomarker, there is still a paucity of knowledge regarding the biological activity of these molecules and their potential roles in pathology of oxidative stress. Furthermore, the use of IsoP has been limited in veterinary species thus far and represents an avenue of opportunity for clinical applications in veterinary practice. Examples of clinical applications of IsoP in veterinary medicine include use as a novel biomarker to guide treatment recommendations or as a target to mitigate inflammatory processes. This review will discuss the history, biosynthesis, measurement, use as a biomarker, and biological action of IsoP, particularly in the context of veterinary medicine.
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20
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Mediterranean diet and endothelial function in patients with coronary heart disease: An analysis of the CORDIOPREV randomized controlled trial. PLoS Med 2020; 17:e1003282. [PMID: 32903262 PMCID: PMC7480872 DOI: 10.1371/journal.pmed.1003282] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 08/07/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Endothelial dysfunction is a crucial step in atherosclerosis development, and its severity is determinant for the risk of cardiovascular recurrence. Diet may be an effective strategy to protect the endothelium, although there is no consensus about the best dietary model. The CORonary Diet Intervention with Olive oil and cardiovascular PREVention (CORDIOPREV) study is an ongoing prospective, randomized, single-blind, controlled trial in 1,002 coronary heart disease (CHD) patients, whose primary objective is to compare the effect of 2 healthy dietary patterns (low-fat versus Mediterranean diet) on the incidence of cardiovascular events. Here, we report the results of one secondary outcome of the CORDIOPREV study: to evaluate the effect of these diets on endothelial function, assessed by flow-mediated dilation (FMD) of the brachial artery. METHODS AND FINDINGS From the total participants taking part in the CORDIOPREV study, 805 completed endothelial function study at baseline and were randomized to follow a Mediterranean diet (35% fat, 22% monounsaturated fatty acids [MUFAs], and <50% carbohydrates) or a low-fat diet (28% fat, 12% MUFAs, and >55% carbohydrates), with endothelial function measurement repeated after 1 year. As secondary objectives and to explore different underlying mechanisms in the modulation of endothelial function, we quantified endothelial microparticles (EMPs) and endothelial progenitor cells (EPCs) and evaluated, in 24 preselected patients, in vitro cellular processes related to endothelial damage (reactive oxygen species, apoptosis, and senescence) and endothelial repair (cell proliferation and angiogenesis), as well as other modulators (micro-RNAs [miRNAs] and proteins). Patients who followed the Mediterranean diet had higher FMD (3.83%; 95% confidence interval [CI]: 2.91-4.23) compared with those in the low-fat diet (1.16%; 95% CI: 0.80 to 1.98) with a difference between diets of 2.63% (95% CI: 1.89-3.40, p = 0.011), even in those patients with severe endothelial dysfunction. We observed higher EPC levels (group difference: 1.64%; 95% CI: 0.79-2.13, p = 0.028) and lower EMPs (group difference: -755 EMPs/μl; 95% CI: -1,010 to -567, p = 0.015) after the Mediterranean diet compared with the low-fat diet in all patients. We also observed lower intracellular reactive oxygen species (ROS) production (group difference: 11.1; 95% CI: 2.5 to 19.6, p = 0.010), cellular apoptosis (group difference: -20.2; 95% CI: -26.7 to -5.11, p = 0.013) and senescence (18.0; 95% CI: 3.57 to 25.1, p = 0.031), and higher cellular proliferation (group difference: 11.3; 95% CI: 4.51 to 13.5, p = 0.011) and angiogenesis (total master segments length, group difference: 549; 95% CI: 110 to 670, p = 0.022) after the Mediterranean diet than the low-fat diet. Each dietary intervention was associated with distinct changes in the epigenetic and proteomic factors that modulate biological process associated with endothelial dysfunction. The evaluation of endothelial function is a substudy of the CORDIOPREV study. As in any substudy, these results should be treated with caution, such as the potential for false positives because of the exploratory nature of the analyses. CONCLUSIONS Our results suggest that the Mediterranean diet better modulates endothelial function compared with a low-fat diet and is associated with a better balance of vascular homeostasis in CHD patients, even in those with severe endothelial dysfunction. CLINICAL TRIAL REGISTRATION URL, http://www.cordioprev.es/index.php/en. clinicaltrials.gov number NCT00924937.
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21
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Du Y, Taylor CG, Aukema HM, Zahradka P. Role of oxylipins generated from dietary PUFAs in the modulation of endothelial cell function. Prostaglandins Leukot Essent Fatty Acids 2020; 160:102160. [PMID: 32717531 DOI: 10.1016/j.plefa.2020.102160] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/17/2020] [Accepted: 07/17/2020] [Indexed: 12/13/2022]
Abstract
Oxylipins, which are circulating bioactive lipids generated from polyunsaturated fatty acids (PUFAs) by cyclooxygenase, lipooxygenase and cytochrome P450 enzymes, have diverse effects on endothelial cells. Although studies of the effects of oxylipins on endothelial cell function are accumulating, a review that provides a comprehensive compilation of current knowledge and recent advances in the context of vascular homeostasis is lacking. This is the first compilation of the various in vitro, ex vivo and in vivo reports to examine the effects and potential mechanisms of action of oxylipins on endothelial cells. The aggregate data indicate docosahexaenoic acid-derived oxylipins consistently show beneficial effects related to key endothelial cell functions, whereas oxylipins derived from other PUFAs exhibit both positive and negative effects. Furthermore, information is lacking for certain oxylipin classes, such as those derived from α-linolenic acid, which suggests additional studies are required to achieve a full understanding of how oxylipins affect endothelial cells.
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Affiliation(s)
- Youjia Du
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada; Department of Physiology and Pathophysiology, University of Manitoba, MB R3E 0J9, Canada
| | - Carla G Taylor
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada; Department of Physiology and Pathophysiology, University of Manitoba, MB R3E 0J9, Canada; Department of Food and Human Nutritional Sciences, University of Manitoba, MB R3T 2N2, Canada
| | - Harold M Aukema
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada; Department of Food and Human Nutritional Sciences, University of Manitoba, MB R3T 2N2, Canada
| | - Peter Zahradka
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada; Department of Physiology and Pathophysiology, University of Manitoba, MB R3E 0J9, Canada; Department of Food and Human Nutritional Sciences, University of Manitoba, MB R3T 2N2, Canada.
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22
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Biringer RG. The enzymology of the human prostanoid pathway. Mol Biol Rep 2020; 47:4569-4586. [PMID: 32430846 DOI: 10.1007/s11033-020-05526-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/14/2020] [Indexed: 12/24/2022]
Abstract
Prostanoids are short-lived autocrine and paracrine signaling molecules involved in a wide range of biological functions. They have been shown to be intimately involved in many different disease states when their regulation becomes dysfunctional. In order to fully understand the progression of any disease state or the biological functions of the well state, a complete evaluation of the genomics, proteomics, and metabolomics of the system is necessary. This review is focused on the enzymology for the enzymes involved in the synthesis of the prostanoids (prostaglandins, prostacyclins and thromboxanes). In particular, the isolation and purification of the enzymes, their enzymatic parameters and catalytic mechanisms are presented.
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Affiliation(s)
- Roger Gregory Biringer
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL, 34211, USA.
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23
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Shchepinov MS. Polyunsaturated Fatty Acid Deuteration against Neurodegeneration. Trends Pharmacol Sci 2020; 41:236-248. [DOI: 10.1016/j.tips.2020.01.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 12/31/2022]
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Barić L, Drenjančević I, Mihalj M, Matić A, Stupin M, Kolar L, Mihaljević Z, Mrakovčić-Šutić I, Šerić V, Stupin A. Enhanced Antioxidative Defense by Vitamins C and E Consumption Prevents 7-Day High-Salt Diet-Induced Microvascular Endothelial Function Impairment in Young Healthy Individuals. J Clin Med 2020; 9:jcm9030843. [PMID: 32244956 PMCID: PMC7141509 DOI: 10.3390/jcm9030843] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/15/2020] [Accepted: 03/18/2020] [Indexed: 01/07/2023] Open
Abstract
This study aimed to examine whether the oral supplementation of vitamins C and E during a seven-day high salt diet (HS; ~14 g salt/day) prevents microvascular endothelial function impairment and changes oxidative status caused by HS diet in 51 (26 women and 25 men) young healthy individuals. Laser Doppler flowmetry measurements demonstrated that skin post-occlusive reactive hyperemia (PORH), and acetylcholine-induced dilation (AChID) were significantly impaired in the HS group, but not in HS+C+E group, while sodium nitroprusside-induced dilation remained unaffected by treatments. Serum oxidative stress markers: Thiobarbituric acid reactive substances (TBARS), 8-iso prostaglandin-F2α, and leukocytes’ intracellular hydrogen peroxide (H2O2) production were significantly increased, while ferric-reducing ability of plasma (FRAP) and catalase concentrations were decreased in the HS group. All these parameters remained unaffected by vitamins supplementation. Matrix metalloproteinase 9, antioxidant enzymes Cu/Zn SOD and glutathione peroxidase 1, and leukocytes’ intracellular superoxide production remained unchanged after the protocols in both HS and HS+C+E groups. Importantly, multiple regression analysis revealed that FRAP was the most powerful predictor of AChID, while PORH was strongly predicted by both FRAP and renin-angiotensin system activity. Hereby, we demonstrated that oxidative dis-balance has the pivotal role in HS diet-induced impairment of endothelial and microvascular function in healthy individuals which could be prevented by antioxidative vitamins consumption.
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Affiliation(s)
- Lidija Barić
- Department of Physiology and Immunology, Faculty of Medicine Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, Hr-31000 Osijek, Croatia; (L.B.); (I.D.); (M.M.); (A.M.); (M.S.); (L.K.); (Z.M.)
| | - Ines Drenjančević
- Department of Physiology and Immunology, Faculty of Medicine Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, Hr-31000 Osijek, Croatia; (L.B.); (I.D.); (M.M.); (A.M.); (M.S.); (L.K.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, Hr-31000 Osijek, Croatia
| | - Martina Mihalj
- Department of Physiology and Immunology, Faculty of Medicine Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, Hr-31000 Osijek, Croatia; (L.B.); (I.D.); (M.M.); (A.M.); (M.S.); (L.K.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, Hr-31000 Osijek, Croatia
- Department of Dermatology and Venereology, Osijek University Hospital, J. Huttlera 4, HR-31000 Osijek, Croatia
| | - Anita Matić
- Department of Physiology and Immunology, Faculty of Medicine Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, Hr-31000 Osijek, Croatia; (L.B.); (I.D.); (M.M.); (A.M.); (M.S.); (L.K.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, Hr-31000 Osijek, Croatia
| | - Marko Stupin
- Department of Physiology and Immunology, Faculty of Medicine Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, Hr-31000 Osijek, Croatia; (L.B.); (I.D.); (M.M.); (A.M.); (M.S.); (L.K.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, Hr-31000 Osijek, Croatia
- Department for Cardiovascular Disease, Osijek University Hospital, J. Huttlera 4, HR-31000 Osijek, Croatia
| | - Luka Kolar
- Department of Physiology and Immunology, Faculty of Medicine Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, Hr-31000 Osijek, Croatia; (L.B.); (I.D.); (M.M.); (A.M.); (M.S.); (L.K.); (Z.M.)
| | - Zrinka Mihaljević
- Department of Physiology and Immunology, Faculty of Medicine Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, Hr-31000 Osijek, Croatia; (L.B.); (I.D.); (M.M.); (A.M.); (M.S.); (L.K.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, Hr-31000 Osijek, Croatia
| | - Ines Mrakovčić-Šutić
- Department of Physiology and Immunology, Medical Faculty University of Rijeka, Ul. Braće Branchetta 20/1, HR-51000 Rijeka, Croatia;
| | - Vatroslav Šerić
- Department of Clinical Laboratory Diagnostics, Osijek University Hospital, J. Huttlera 4, HR-31000 Osijek, Croatia;
| | - Ana Stupin
- Department of Physiology and Immunology, Faculty of Medicine Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, Hr-31000 Osijek, Croatia; (L.B.); (I.D.); (M.M.); (A.M.); (M.S.); (L.K.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, Hr-31000 Osijek, Croatia
- Department of Pathophysiology, Physiology and Immunology, Faculty of Dental Medicine and Health Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 10E, HR-31000 Osijek, Croatia
- Correspondence: ; Tel.: +385-31-512-800
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Gutierrez-Pajares JL, Ben Hassen C, Oger C, Galano JM, Durand T, Frank PG. Oxidized Products of α-Linolenic Acid Negatively Regulate Cellular Survival and Motility of Breast Cancer Cells. Biomolecules 2019; 10:biom10010050. [PMID: 31905626 PMCID: PMC7023043 DOI: 10.3390/biom10010050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/24/2019] [Accepted: 12/25/2019] [Indexed: 12/09/2022] Open
Abstract
Despite recent advances in our understanding of the biological processes leading to the development and progression of cancer, there is still a need for new and effective agents to treat this disease. Phytoprostanes (PhytoPs) and phytofurans (PhytoFs) are non-enzymatically oxidized products of α-linolenic acid that are present in seeds and vegetable oils. They have been shown to possess anti-inflammatory and apoptosis-promoting activities in macrophages and leukemia cells, respectively. In this work, seven PhytoPs (PP1–PP7) and one PhytoFs (PF1) were evaluated for their cytotoxic, chemosensitization, and anti-migratory activities using the MCF-7 and MDA-MB-231 breast cancer cell lines. Among the tested compounds, only three PhytoPs had a significant effect on cell viability compared to the control group: Ent-9-L1-PhytoP (PP6) decreased cell viability in both cell lines, while 16-F1t-PhytoP (PP1) and 9-L1-PhytoP (PP5) decreased viability of MCF-7 and MDA-MB-231 cells, respectively. When combined with a sub-cytotoxic dose of doxorubicin, these three PhytoPs displayed significantly enhanced cytotoxic effects on MCF-7 cells while the chemotherapeutic drug alone had no effect. In cellular motility assays, Ent-9-(RS)-12-epi-ST-Δ10-13-PhytoF could significantly inhibit cellular migration of MDA-MB-231 cells. In addition, Ent-9-(RS)-12-epi-ST-Δ10-13-PhytoF also enhanced cellular adhesion of MDA-MB-231 cells.
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Affiliation(s)
| | - Celine Ben Hassen
- INSERM, Faculté de Médecine, Université de Tours, UMR1069 Tours, France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM Faculté de Pharmacie, UMR5247 Montpellier, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM Faculté de Pharmacie, UMR5247 Montpellier, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM Faculté de Pharmacie, UMR5247 Montpellier, France
| | - Philippe G Frank
- INSERM, Faculté de Médecine, Université de Tours, UMR1069 Tours, France
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Blervaque L, Passerieux E, Pomiès P, Catteau M, Héraud N, Blaquière M, Bughin F, Ayoub B, Molinari N, Cristol JP, Perez-Martin A, Mercier J, Hayot M, Gouzi F. Impaired training-induced angiogenesis process with loss of pericyte-endothelium interactions is associated with an abnormal capillary remodelling in the skeletal muscle of COPD patients. Respir Res 2019; 20:278. [PMID: 31806021 PMCID: PMC6896673 DOI: 10.1186/s12931-019-1240-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 11/13/2019] [Indexed: 12/31/2022] Open
Abstract
Abstract Chronic obstructive pulmonary disease (COPD) is associated with exercise intolerance and limits the functional gains in response to exercise training in patients compared to sedentary healthy subjects (SHS). The blunted skeletal muscle angiogenesis previously observed in COPD patients has been linked to these limited functional improvements, but its underlying mechanisms, as well as the potential role of oxidative stress, remain poorly understood. Therefore, we compared ultrastructural indexes of angiogenic process and capillary remodelling by transmission electron microscopy in 9 COPD patients and 7 SHS after 6 weeks of individualized moderate-intensity endurance training. We also assessed oxidative stress by plasma-free and esterified isoprostane (F2-IsoP) levels in both groups. We observed a capillary basement membrane thickening in COPD patients only (p = 0.008) and abnormal variations of endothelial nucleus density in response to exercise training in these patients when compared to SHS (p = 0.042). COPD patients had significantly fewer occurrences of pericyte/endothelium interdigitations, a morphologic marker of capillary maturation, than SHS (p = 0.014), and significantly higher levels of F2-IsoP (p = 0.048). Last, the changes in pericyte/endothelium interdigitations and F2-IsoP levels in response to exercise training were negatively correlated (r = − 0.62, p = 0.025). This study is the first to show abnormal capillary remodelling and to reveal impairments during the whole process of angiogenesis (capillary creation and maturation) in COPD patients. Trial registration NCT01183039 & NCT01183052, both registered 7 August 2010 (retrospectively registered).
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Affiliation(s)
- Léo Blervaque
- Physiologie & médecine expérimentale du Cœur et des Muscles (PhyMedExp), INSERM - CNRS - Montpellier University. CHU Arnaud De Villeneuve, 371 avenue du Doyen Gaston Giraud, 34295, Montpellier cedex 5, France.
| | - Emilie Passerieux
- Physiologie & médecine expérimentale du Cœur et des Muscles (PhyMedExp), INSERM - CNRS - Montpellier University. CHU Arnaud De Villeneuve, 371 avenue du Doyen Gaston Giraud, 34295, Montpellier cedex 5, France
| | - Pascal Pomiès
- Physiologie & médecine expérimentale du Cœur et des Muscles (PhyMedExp), INSERM - CNRS - Montpellier University. CHU Arnaud De Villeneuve, 371 avenue du Doyen Gaston Giraud, 34295, Montpellier cedex 5, France
| | - Matthias Catteau
- Physiologie & médecine expérimentale du Cœur et des Muscles (PhyMedExp), INSERM - CNRS - Montpellier University. CHU Arnaud De Villeneuve, 371 avenue du Doyen Gaston Giraud, 34295, Montpellier cedex 5, France
| | - Nelly Héraud
- Les Cliniques du Souffle®, Groupe 5 Santé, Lodève, France
| | - Marine Blaquière
- PhyMedExp, INSERM - CNRS, Montpellier University, CHU Montpellier, Montpellier, France
| | - François Bughin
- PhyMedExp, INSERM - CNRS, Montpellier University, CHU Montpellier, Montpellier, France
| | - Bronia Ayoub
- PhyMedExp, INSERM - CNRS, Montpellier University, CHU Montpellier, Montpellier, France
| | - Nicolas Molinari
- IMAG, CNRS, Montpellier University, CHU Montpellier, Montpellier, France
| | - Jean-Paul Cristol
- PhyMedExp, INSERM - CNRS, Montpellier University, CHU Montpellier, Montpellier, France
| | - Antonia Perez-Martin
- Vascular Medicine Department and Laboratory, CHU Nîmes and EA2992 Research Unit, Montpellier University, Nimes, France
| | - Jacques Mercier
- PhyMedExp, INSERM - CNRS, Montpellier University, CHU Montpellier, Montpellier, France
| | - Maurice Hayot
- PhyMedExp, INSERM - CNRS, Montpellier University, CHU Montpellier, Montpellier, France
| | - Fares Gouzi
- PhyMedExp, INSERM - CNRS, Montpellier University, CHU Montpellier, Montpellier, France
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27
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Biringer RG. The Role of Eicosanoids in Alzheimer's Disease. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16142560. [PMID: 31323750 PMCID: PMC6678666 DOI: 10.3390/ijerph16142560] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/09/2019] [Accepted: 07/13/2019] [Indexed: 12/21/2022]
Abstract
Alzheimer's disease (AD) is one of the most common neurodegenerative disorders known. Estimates from the Alzheimer's Association suggest that there are currently 5.8 million Americans living with the disease and that this will rise to 14 million by 2050. Research over the decades has revealed that AD pathology is complex and involves a number of cellular processes. In addition to the well-studied amyloid-β and tau pathology, oxidative damage to lipids and inflammation are also intimately involved. One aspect all these processes share is eicosanoid signaling. Eicosanoids are derived from polyunsaturated fatty acids by enzymatic or non-enzymatic means and serve as short-lived autocrine or paracrine agents. Some of these eicosanoids serve to exacerbate AD pathology while others serve to remediate AD pathology. A thorough understanding of eicosanoid signaling is paramount for understanding the underlying mechanisms and developing potential treatments for AD. In this review, eicosanoid metabolism is examined in terms of in vivo production, sites of production, receptor signaling, non-AD biological functions, and known participation in AD pathology.
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Affiliation(s)
- Roger G Biringer
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, 5000 Lakewood Ranch Blvd., Bradenton, FL 34211, USA.
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28
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Brun BF, Strela FB, Berger RCM, Melo SFS, de Oliveira EM, Barauna VG, Vassallo PF. Blockade of AT1 receptor restore the migration of vascular smooth muscle cells in high sodium medium. Cell Biol Int 2019; 43:890-898. [PMID: 31062893 DOI: 10.1002/cbin.11162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/02/2019] [Indexed: 12/31/2022]
Abstract
The present study aimed to test the hypothesis that increased sodium concentration affects the migratory phenotype of vascular smooth muscle cells (VSMCs) independently of the haemodynamic factors. Cell migration was evaluated by wound-healing assay under the following conditions: high sodium (HS, 160 mM) and control (CT, 140 mM). Cell viability was assessed by annexin V and propidium iodide labeling. Cyclooxygenase-2 (COX-2) gene expression was analysed by reverse transcription polymerase chain reaction. ERK1/2 phosphorylation was assessed by western blot. Exposure of VSMCs to HS reduced migration, and AT1R blockade prevented this response. HS increased COX-2 gene expression, and COX-2 blockade prevented the reduction in VSMC migration induced by HS. HS also increased ERK1/2 phosphorylation, and ERK1/2 inhibition recovered VSMC migration as well as blocked COX-2 gene expression. The TXA2 receptor blocker, but not the prostacyclin receptor blocker, prevented the HS-induced VSMCs migration decrease. HS reduces the migration of VSMCs by increasing COX-2 gene expression via AT1R-ERK1/2 phosphorylation. In addition, increased COX-2 by HS seems to modulate the reduction of VSMCs migration by the TXA2 receptor.
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Affiliation(s)
- Bruna F Brun
- Department of Physiological Science, Laboratory of Cardiac Electromechanics and Vascular Reactivity, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Felipe B Strela
- Department of Physiological Science, Laboratory of Cardiac Electromechanics and Vascular Reactivity, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Rebeca C M Berger
- Department of Physiological Science, Laboratory of Cardiac Electromechanics and Vascular Reactivity, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Stéphano F S Melo
- Department of Physiological Science, Exercise Molecular Physiology Laboratory, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Edilamar M de Oliveira
- Department Biodynamics of the Human Body Movement, Laboratory of Biochemistry of the Motor Activity, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Valério G Barauna
- Department of Physiological Science, Exercise Molecular Physiology Laboratory, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Paula F Vassallo
- Department of Physiological Science, Laboratory of Cardiac Electromechanics and Vascular Reactivity, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil.,Health Science Center, HUCAM-Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
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29
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Wu H, Li F, Shao W, Gao J, Ling D. Promoting Angiogenesis in Oxidative Diabetic Wound Microenvironment Using a Nanozyme-Reinforced Self-Protecting Hydrogel. ACS CENTRAL SCIENCE 2019; 5:477-485. [PMID: 30937375 PMCID: PMC6439452 DOI: 10.1021/acscentsci.8b00850] [Citation(s) in RCA: 148] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Indexed: 05/02/2023]
Abstract
Impaired diabetic wound healing represents a devastating and rapidly growing clinical problem associated with high morbidity, mortality, and recurrence rates. Engineering therapeutic angiogenesis in the wounded tissue is critical for successful wound healing. However, stimulating functional angiogenesis of the diabetic wound remains a great challenge, due to the oxidative damage and denaturation of bio-macromolecule-based angiogenic agents in the oxidative diabetic wound microenvironment. Here, we present a unique "seed-and-soil" strategy that circumvents the limitation by simultaneously reshaping the oxidative wound microenvironment into a proregenerative one (the "soil") and providing proangiogenic miRNA cues (the "seed") using an miRNA-impregnated, redox-modulatory ceria nanozyme-reinforced self-protecting hydrogel (PCN-miR/Col). The PCN-miR/Col not only reshapes the hostile oxidative wound microenvironment, but also ensures the structural integrity of the encapsulated proangiogenic miRNA in the oxidative microenvironment. Diabetic wounds treated with the PCN-miR/Col demonstrate a remarkably accelerated wound closure and enhanced quality of the healed wound as featured by highly ordered alignment of collagen fiber, skin appendage morphogenesis, functional new blood vessel growth, and oxygen saturation.
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Affiliation(s)
- Haibin Wu
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Fangyuan Li
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
- Hangzhou
Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310012, P. R.
China
| | - Wei Shao
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Jianqing Gao
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
- Dr.
Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative
Medicine, Zhejiang University, Hangzhou 310058, P. R. China
- E-mail:
| | - Daishun Ling
- Institute
of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
- Hangzhou
Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310012, P. R.
China
- Key
Laboratory of Biomedical Engineering of the Ministry of Education,
College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, P. R.
China
- E-mail:
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30
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Upchurch C, Leitinger N. Biologically Active Lipids in Vascular Biology. FUNDAMENTALS OF VASCULAR BIOLOGY 2019. [DOI: 10.1007/978-3-030-12270-6_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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31
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Wu T, Yu GY, Xiao J, Yan C, Kurihara H, Li YF, So KF, He RR. Fostering efficacy and toxicity evaluation of traditional Chinese medicine and natural products: Chick embryo as a high throughput model bridging in vitro and in vivo studies. Pharmacol Res 2018; 133:21-34. [DOI: 10.1016/j.phrs.2018.04.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 04/07/2018] [Accepted: 04/13/2018] [Indexed: 12/19/2022]
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Ripperger A, Krischer A, Robaa D, Sippl W, Benndorf RA. Pharmacogenetic Aspects of the Interaction of AT1 Receptor Antagonists With ATP-Binding Cassette Transporter ABCG2. Front Pharmacol 2018; 9:463. [PMID: 29867471 PMCID: PMC5960723 DOI: 10.3389/fphar.2018.00463] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/20/2018] [Indexed: 12/30/2022] Open
Abstract
The ATP-binding cassette transporter ABCG2 (BCRP and MXR) is involved in the absorption, distribution, and elimination of numerous drugs. Thus, drugs that are able to reduce the activity of ABCG2, e.g., antihypertensive AT1 receptor antagonists (ARBs), may cause drug-drug interactions and compromise drug safety and efficacy. In addition, genetic variability within the ABCG2 gene may influence the ability of the transporter to interact with ARBs. Thus, the aim of this study was to characterize the ARB-ABCG2 interaction in the light of naturally occurring variations (F489L, R482G) or amino acid substitutions with in silico-predicted relevance for the ARB-ABCG2 interaction (Y469A; M483F; Y570A). For this purpose, ABCG2 variants were expressed in HEK293 cells and the impact of ARBs on ABCG2 activity was studied in vitro using the pheophorbide A (PhA) efflux assay. First, we demonstrated that both the F489L and the Y469A substitution, respectively, reduced ABCG2 protein levels in these cells. Moreover, both substitutions enhanced the inhibitory effect of candesartan cilexetil, irbesartan, losartan, and telmisartan on ABCG2-mediated PhA efflux, whereas the R482G substitution blunted the inhibitory effect of candesartan cilexetil and telmisartan in this regard. In contrast, the ARB-ABCG2 interaction was not altered in cells expressing either the M483F or the Y570A variant, respectively. In conclusion, our data indicate that the third transmembrane helix and adjacent regions of ABCG2 may be of major importance for the interaction of ARBs with the ABC transporter. Moreover, we conclude from our data that individuals carrying the F489L polymorphism may be at increased risk of developing ABCG2-related drug-drug interactions in multi-drug regimens involving ARBs.
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Affiliation(s)
- Anne Ripperger
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle, Germany
| | - Anna Krischer
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle, Germany
| | - Dina Robaa
- Department of Medicinal Chemistry, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle, Germany
| | - Wolfgang Sippl
- Department of Medicinal Chemistry, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle, Germany
| | - Ralf A Benndorf
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle, Germany
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33
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Fois AG, Paliogiannis P, Sotgia S, Mangoni AA, Zinellu E, Pirina P, Carru C, Zinellu A. Evaluation of oxidative stress biomarkers in idiopathic pulmonary fibrosis and therapeutic applications: a systematic review. Respir Res 2018; 19:51. [PMID: 29587761 PMCID: PMC5872514 DOI: 10.1186/s12931-018-0754-7] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 03/19/2018] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Idiopathic pulmonary fibrosis (IPF), a fatal lung disease of unknown origin, is characterized by chronic and progressive fibrosing interstitial pneumonia which progressively impairs lung function. Oxidative stress is one of the main pathogenic pathways in IPF. The aim of this systematic review was to describe the type of markers of oxidative stress identified in different biological specimens and the effects of antioxidant therapies in patients with IPF. METHODS We conducted a systematic search of publications listed in electronic databases (Pubmed, Web of Science, Scopus and Google Scholar) from inception to October 2017. Two investigators independently reviewed all identified articles to determine eligibility. RESULTS After a substantial proportion of the initially identified articles (n = 554) was excluded because they were duplicates, abstracts, irrelevant, or did not meet the selection criteria, we identified 30 studies. In each study, we critically appraised the type, site (systemic vs. local, e.g. breath, sputum, expired breath condensate, epithelial lining fluid, bronchoalveolar lavage, and lung tissue specimens), and method used for measuring the identified oxidative stress biomarkers. Furthermore, the current knowledge on antioxidant therapies in IPF was summarized. CONCLUSIONS A number of markers of oxidative stress, with individual advantages and limitations, have been described in patients with IPF. Nevertheless, trials of antioxidant treatments have been unable to demonstrate consistent benefits, barring recent pharmacogenomics data suggesting different results in specific genotype subgroups of patients with IPF.
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Affiliation(s)
- Alessandro G Fois
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy. .,Department of Respiratory Diseases, University Hospital Sassari (AOU), Sassari, Italy.
| | | | - Salvatore Sotgia
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Arduino A Mangoni
- Department of Clinical Pharmacology, College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Elisabetta Zinellu
- Department of Respiratory Diseases, University Hospital Sassari (AOU), Sassari, Italy
| | - Pietro Pirina
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy.,Department of Respiratory Diseases, University Hospital Sassari (AOU), Sassari, Italy
| | - Ciriaco Carru
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Angelo Zinellu
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
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34
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Cai G, Yan A, Fu N, Fu Y. Thromboxane A2 receptor antagonist SQ29548 attenuates SH‑SY5Y neuroblastoma cell impairments induced by oxidative stress. Int J Mol Med 2018; 42:479-488. [PMID: 29620149 DOI: 10.3892/ijmm.2018.3589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 03/21/2018] [Indexed: 11/05/2022] Open
Abstract
Thromboxane A2 receptor (TXA2R) serves a vital role in numerous neurological disorders. Our previous study indicated that SQ29548, an antagonist of TXA2R, attenuated the induced neuron damage in cerebral infarction animals; however, the underlying mechanism remains unknown. Certain studies revealed a new role of TXA2R in the regulation of oxidative stress, which is one of the basic pathological processes in neurological disorders. Thus, the present study attempted to examine whether the inhibition of TXA2R with SQ29548 helped to protect the nerve cells against oxidative stress. SQ29548 was utilized as a TXA2R antagonist, and relevant assays were performed to detect the cell viability, cellular reactive oxygen species (ROS) level, cell apoptosis, expression levels of superoxide dismutase‑2 (SOD2), catalase and caspases, and activation of mitogen‑activated protein kinase (MAPK) pathways. It was observed that hydrogen peroxide (H2O2) dose‑dependently reduced the viability of SH‑SY5Y cells. In addition, H2O2 raised the level of ROS in cells, inhibited the expression levels of SOD2 and catalase, and potentially enhanced cell apoptosis and the expression of caspases via activating the MAPK pathways. Pretreatment with SQ29548 not only rescued the viability of SH‑SY5Y cells, but also ameliorated the intracellular ROS level and the expression levels of SOD2 and catalase. Furthermore, it decreased the cell apoptosis and the expression of caspases, possibly via the inhibition of MAPK pathways. In conclusion, SQ29548, an antagonist of TXA2R, improved the antioxidant capacities of SH‑SY5Y cells and reduced the cell apoptosis through the inhibition of MAPK pathways.
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Affiliation(s)
- Gaoyu Cai
- Department of Neurology, Rui Jin Hospital, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Aijuan Yan
- Department of Neurology, Xin Hua Hospital, Shanghai Jiao Tong University, Shanghai 200082, P.R. China
| | - Ningzhen Fu
- Department of Pancreatic Surgery, Rui Jin College of Clinical Medicine, Rui Jin Hospital, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Yi Fu
- Department of Neurology, Rui Jin Hospital, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
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35
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Galano JM, Lee YY, Oger C, Vigor C, Vercauteren J, Durand T, Giera M, Lee JCY. Isoprostanes, neuroprostanes and phytoprostanes: An overview of 25years of research in chemistry and biology. Prog Lipid Res 2017; 68:83-108. [PMID: 28923590 DOI: 10.1016/j.plipres.2017.09.004] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 09/14/2017] [Accepted: 09/14/2017] [Indexed: 02/07/2023]
Abstract
Since the beginning of the 1990's diverse types of metabolites originating from polyunsaturated fatty acids, formed under autooxidative conditions were discovered. Known as prostaglandin isomers (or isoprostanoids) originating from arachidonic acid, neuroprostanes from docosahexaenoic acid, and phytoprostanes from α-linolenic acid proved to be prevalent in biology. The syntheses of these compounds by organic chemists and the development of sophisticated mass spectrometry methods has boosted our understanding of the isoprostanoid biology. In recent years, it has become accepted that these molecules not only serve as markers of oxidative damage but also exhibit a wide range of bioactivities. In addition, isoprostanoids have emerged as indicators of oxidative stress in humans and their environment. This review explores in detail the isoprostanoid chemistry and biology that has been achieved in the past three decades.
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Affiliation(s)
- Jean-Marie Galano
- Institut des Biomolécules Max Mousseron, UMR 5247 CNRS, ENSCM, Université de Montpellier, France
| | - Yiu Yiu Lee
- School of Biological Sciences, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Camille Oger
- Institut des Biomolécules Max Mousseron, UMR 5247 CNRS, ENSCM, Université de Montpellier, France
| | - Claire Vigor
- Institut des Biomolécules Max Mousseron, UMR 5247 CNRS, ENSCM, Université de Montpellier, France
| | - Joseph Vercauteren
- Institut des Biomolécules Max Mousseron, UMR 5247 CNRS, ENSCM, Université de Montpellier, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron, UMR 5247 CNRS, ENSCM, Université de Montpellier, France
| | - Martin Giera
- Leiden University Medical Center, Center for Proteomics and Metabolomics, Albinusdreef 2, 2300RC Leiden, The Netherlands
| | - Jetty Chung-Yung Lee
- School of Biological Sciences, The University of Hong Kong, Hong Kong Special Administrative Region.
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36
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Evaluating the utility of markers of thromboxane activity and oxidative stress in cardiovascular risk prediction. Coron Artery Dis 2017; 28:275-277. [DOI: 10.1097/mca.0000000000000478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Prostanoids in the pathophysiology of human coronary artery. Prostaglandins Other Lipid Mediat 2017; 133:20-28. [PMID: 28347710 DOI: 10.1016/j.prostaglandins.2017.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 02/16/2017] [Accepted: 03/23/2017] [Indexed: 01/16/2023]
Abstract
Coronary artery disease is one of the leading causes of death in wordwide. There is growing evidence that prostanoids are involved in the physiology and pathophysiology of the human coronary artery by controlling vascular tone, remodelling of the vascular wall or angiogenesis. In this review, the production of prostanoids and the expression of prostanoid receptors in human coronary artery in health or disease are described. In addition, the interactions between sex hormones and prostanoids, their participations in the development of coronary artery diseases have been addressed. Globally, most of the studies performed in human coronary artery preparations have shown that prostacyclin (PGI2) has beneficial effects by inducing vasodilatation and promoting angiogenesis while reverse effects are confirmed by thromboxane A2 (TxA2). More studies are needed to determine the roles of the other prostanoids (PGE2, PGD2 and PGF2α) in vascular functions of the human coronary artery. Finally, in addition to the in vitro data about the human coronary artery, myocardial infarction induced by cyclooxygenase-2 (COX-2) inhibitor and the protective effects of aspirin after coronary artery bypass surgery suggest that prostanoids are key mediators in coronary homeostasis.
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38
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Timosaponin AIII induces antiplatelet and antithrombotic activity via Gq-mediated signaling by the thromboxane A2 receptor. Sci Rep 2016; 6:38757. [PMID: 27934923 PMCID: PMC5146924 DOI: 10.1038/srep38757] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 11/14/2016] [Indexed: 12/02/2022] Open
Abstract
The thromboxane (Tx) A2 pathway is a major contributor to the amplification of initial platelet activation and is therefore a key drug target. To identify potent small-molecule inhibitors of the thromboxane prostaglandin (TP) receptor, we screened a small steroidal saponin library using U46619-induced rat platelet aggregation assays. Timosaponin AIII (TAIII) was identified as a potent inhibitor of U46619-induced rat platelet aggregation and exhibited superior selectivity for the TP receptor versus other G protein-coupled receptors and a PKC activator. TAIII inhibited U46619-induced rat platelet aggregation independent of increases in cAMP and cGMP and the inhibition of TxA2 production. Both PKC and PLC activators restored TAIII-inhibited platelet aggregation, whereas TAIII did not inhibit platelet aggregation induced by co-activation of the G12/13 and Gz pathways. Furthermore, TAIII did not affect the platelet shape change or ROCK2 phosphorylation evoked by low-dose U46619. In vivo, TAIII prolonged tail bleeding time, reduced the mortality of animals with acute pulmonary thromboembolism and significantly reduced venous thrombus weight. Our study suggests that TAIII, by preferentially targeting Gq-mediated PLC/PKC signaling from the TP receptor, induces stronger in vitro antiplatelet activity and in vivo antithrombotic effects and may be an excellent candidate for the treatment of thrombotic disorders.
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39
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Margaritelis NV, Cobley JN, Paschalis V, Veskoukis AS, Theodorou AA, Kyparos A, Nikolaidis MG. Going retro: Oxidative stress biomarkers in modern redox biology. Free Radic Biol Med 2016; 98:2-12. [PMID: 26855421 DOI: 10.1016/j.freeradbiomed.2016.02.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 01/08/2016] [Accepted: 02/02/2016] [Indexed: 12/23/2022]
Abstract
The field of redox biology is inherently intertwined with oxidative stress biomarkers. Oxidative stress biomarkers have been utilized for many different objectives. Our analysis indicates that oxidative stress biomarkers have several salient applications: (1) diagnosing oxidative stress, (2) pinpointing likely redox components in a physiological or pathological process and (3) estimating the severity, progression and/or regression of a disease. On the contrary, oxidative stress biomarkers do not report on redox signaling. Alternative approaches to gain more mechanistic insights are: (1) measuring molecules that are integrated in pathways linking redox biochemistry with physiology, (2) using the exomarker approach and (3) exploiting -omics techniques. More sophisticated approaches and large trials are needed to establish oxidative stress biomarkers in the clinical setting.
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Affiliation(s)
- N V Margaritelis
- Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Agios Ioannis, 62110 Serres, Greece; Intensive Care Unit, 424 General Military Hospital of Thessaloniki, Thessaloniki, Greece
| | - J N Cobley
- Division of Sport and Exercise Sciences, Abertay University, Dundee, UK
| | - V Paschalis
- Department of Physical Education and Sport Science, University of Thessaly, Karies, Trikala, Greece; Department of Health Sciences, School of Sciences, European University Cyprus, Nicosia, Cyprus
| | - A S Veskoukis
- Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Agios Ioannis, 62110 Serres, Greece
| | - A A Theodorou
- Department of Health Sciences, School of Sciences, European University Cyprus, Nicosia, Cyprus
| | - A Kyparos
- Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Agios Ioannis, 62110 Serres, Greece
| | - M G Nikolaidis
- Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Agios Ioannis, 62110 Serres, Greece.
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Boedtkjer E, Bentzon JF, Dam VS, Aalkjaer C. Na+, HCO3--cotransporter NBCn1 increases pHi gradients, filopodia, and migration of smooth muscle cells and promotes arterial remodelling. Cardiovasc Res 2016; 111:227-39. [PMID: 27076468 DOI: 10.1093/cvr/cvw079] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 03/17/2016] [Indexed: 12/19/2022] Open
Abstract
AIMS Arterial remodelling can cause luminal narrowing and obstruct blood flow. We tested the hypothesis that cellular acid-base transport facilitates proliferation and migration of vascular smooth muscle cells (VSMCs) and enhances remodelling of conduit arteries. METHODS AND RESULTS [Formula: see text]-cotransport via NBCn1 (Slc4a7) mediates net acid extrusion and controls steady-state intracellular pH (pHi) in VSMCs of mouse carotid arteries and primary aortic explants. Carotid arteries undergo hypertrophic inward remodelling in response to partial or complete ligation in vivo, but the increase in media area and thickness and reduction in lumen diameter are attenuated in arteries from NBCn1 knock-out compared with wild-type mice. With [Formula: see text] present, gradients for pHi (∼0.2 units magnitude) exist along the axis of VSMC migration in primary explants from wild-type but not NBCn1 knock-out mice. Knock-out or pharmacological inhibition of NBCn1 also reduces filopodia and lowers initial rates of VSMC migration after scratch-wound infliction. Interventions to reduce H(+)-buffer mobility (omission of [Formula: see text] or inhibition of carbonic anhydrases) re-establish axial pHi gradients, filopodia, and migration rates in explants from NBCn1 knock-out mice. The omission of [Formula: see text] also lowers global pHi and inhibits proliferation in primary explants. CONCLUSION Under physiological conditions (i.e. with [Formula: see text] present), NBCn1-mediated [Formula: see text] uptake raises VSMC pHi and promotes filopodia, VSMC migration, and hypertrophic inward remodelling. We propose that axial pHi gradients enhance VSMC migration whereas global acidification inhibits VSMC proliferation and media hypertrophy after carotid artery ligation. These findings support a key role of acid-base transport, particularly via NBCn1, for development of occlusive artery disease.
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Affiliation(s)
- Ebbe Boedtkjer
- Department of Biomedicine, Aarhus University, Ole Worms Allé 3, Building 1170, DK-8000 Aarhus C, Denmark
| | - Jacob F Bentzon
- Department of Clinical Medicine, Aarhus University, Aarhus C, Denmark
| | - Vibeke S Dam
- Department of Biomedicine, Aarhus University, Ole Worms Allé 3, Building 1170, DK-8000 Aarhus C, Denmark
| | - Christian Aalkjaer
- Department of Biomedicine, Aarhus University, Ole Worms Allé 3, Building 1170, DK-8000 Aarhus C, Denmark
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Chang MC, Chan CP, Chen YJ, Hsien HC, Chang YC, Yeung SY, Jeng PY, Cheng RH, Hahn LJ, Jeng JH. Areca nut components stimulate ADAM17, IL-1α, PGE2 and 8-isoprostane production in oral keratinocyte: role of reactive oxygen species, EGF and JAK signaling. Oncotarget 2016; 7:16879-94. [PMID: 26919242 PMCID: PMC4941357 DOI: 10.18632/oncotarget.7621] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 02/09/2016] [Indexed: 11/25/2022] Open
Abstract
Betel quid (BQ) chewing is an etiologic factor of oral submucous fibrosis (OSF) and oral cancer. There are 600 million BQ chewers worldwide. The mechanisms for the toxic and inflammatory responses of BQ are unclear. In this study, both areca nut (AN) extract (ANE) and arecoline stimulated epidermal growth factor (EGF) and interleukin-1α (IL-1α) production of gingival keratinocytes (GKs), whereas only ANE can stimulate a disintegrin and metalloproteinase 17 (ADAM17), prostaglandin E2 (PGE2) and 8-isoprostane production. ANE-induced EGF production was inhibited by catalase. Addition of anti-EGF neutralizing antibody attenuated ANE-induced cyclooxygenase-2 (COX-2), mature ADAM9 expression and PGE2 and 8-isoprostane production. ANE-induced IL-1α production was inhibited by catalase, anti-EGF antibody, PD153035 (EGF receptor antagonist) and U0126 (MEK inhibitor) but not by α-naphthoflavone (cytochrome p450-1A1 inhibitor). ANE-induced ADAM17 production was inhibited by pp2 (Src inhibitor), U0126, α-naphthoflavone and aspirin. AG490 (JAK inhibitor) prevented ANE-stimulated ADAM17, IL-1α, PGE2 production, COX-2 expression, ADAM9 maturation, and the ANE-induced decline in keratin 5 and 14, but showed little effect on cdc2 expression and EGF production. Moreover, ANE-induced 8-isoprostane production by GKs was inhibited by catalase, anti-EGF antibody, AG490, pp2, U0126, α-naphthoflavone, Zinc protoporphyrin (ZnPP) and aspirin. These results indicate that AN components may involve in BQ-induced oral cancer by induction of reactive oxygen species, EGF/EGFR, IL-1α, ADAMs, JAK, Src, MEK/ERK, CYP1A1, and COX signaling pathways, and the aberration of cell cycle and differentiation. Various blockers against ROS, EGF, IL-1α, ADAM, JAK, Src, MEK, CYP1A1, and COX can be used for prevention or treatment of BQ chewing-related diseases.
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Affiliation(s)
- Mei-Chi Chang
- Team of Biomedical Science, Chang-Gung University of Science and Technology, Kwei-Shan, Taoyuan City, Taiwan
- Department of Dentistry, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Chiu-Po Chan
- Department of Dentistry, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Yi-Jane Chen
- Laboratory of Pharmacology, Toxicology and Chemical Carcinogenesis, School of Dentistry and Department of Dentistry, National Taiwan University Hospital and National Taiwan University Medical College, Taipei, Taiwan
| | - Hsiang-Chi Hsien
- Department of Dentistry, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Ya-Ching Chang
- Department of Dentistry, Mackay Memorial Hospial, and Mackay Junior College of Medicine, Nursing and Management, Taipei, Taiwan
| | - Sin-Yuet Yeung
- Department of Dentistry, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Po-Yuan Jeng
- School of Dentistry, University of Cardenal Herrera, CEU, Valencia, Spain
| | - Ru-Hsiu Cheng
- Laboratory of Pharmacology, Toxicology and Chemical Carcinogenesis, School of Dentistry and Department of Dentistry, National Taiwan University Hospital and National Taiwan University Medical College, Taipei, Taiwan
| | - Liang-Jiunn Hahn
- Laboratory of Pharmacology, Toxicology and Chemical Carcinogenesis, School of Dentistry and Department of Dentistry, National Taiwan University Hospital and National Taiwan University Medical College, Taipei, Taiwan
| | - Jiiang-Huei Jeng
- Laboratory of Pharmacology, Toxicology and Chemical Carcinogenesis, School of Dentistry and Department of Dentistry, National Taiwan University Hospital and National Taiwan University Medical College, Taipei, Taiwan
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Kang T, Jones TM, Naddell C, Bacanamwo M, Calvert JW, Thompson WE, Bond VC, Chen YE, Liu D. Adipose-Derived Stem Cells Induce Angiogenesis via Microvesicle Transport of miRNA-31. Stem Cells Transl Med 2016; 5:440-50. [PMID: 26933040 PMCID: PMC4798737 DOI: 10.5966/sctm.2015-0177] [Citation(s) in RCA: 153] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 11/19/2015] [Indexed: 12/25/2022] Open
Abstract
UNLABELLED Cell secretion is an important mechanism for stem cell-based therapeutic angiogenesis, along with cell differentiation to vascular endothelial cells or smooth muscle cells. Cell-released microvesicles (MVs) have been recently implicated to play an essential role in intercellular communication. The purpose of this study was to explore the potential effects of stem cell-released MVs in proangiogenic therapy. We observed for the first time that MVs were released from adipose-derived stem cells (ASCs) and were able to increase the migration and tube formation of human umbilical vein endothelial cells (HUVECs). Endothelial differentiation medium (EDM) preconditioning of ASCs upregulated the release of MVs and enhanced the angiogenic effect of the released MVs in vitro. RNA analysis revealed that microRNA was enriched in ASC-released MVs and that the level of microRNA-31 (miR-31) in MVs was notably elevated upon EDM-preconditioning of MV-donor ASCs. Further studies exhibited that miR-31 in MVs contributed to the migration and tube formation of HUVECs, microvessel outgrowth of mouse aortic rings, and vascular formation of mouse Matrigel plugs. Moreover, factor-inhibiting HIF-1, an antiangiogenic gene, was identified as the target of miR-31 in HUVECs. Our findings provide the first evidence that MVs from ASCs, particularly from EDM-preconditioned ASCs, promote angiogenesis and the delivery of miR-31 may contribute the proangiogenic effect. SIGNIFICANCE This study provides the evidence that microvesicles (MVs) from adipose-derived stem cells (ASCs), particularly from endothelial differentiation medium (EDM)-preconditioned ASCs, promote angiogenesis. An underlying mechanism of the proangiogenesis may be the delivery of microRNA-31 via MVs from ASCs to vascular endothelial cells in which factor-inhibiting HIF-1 is targeted and suppressed. The study findings reveal the role of MVs in mediating ASC-induced angiogenesis and suggest a potential MV-based angiogenic therapy for ischemic diseases.
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Affiliation(s)
- Ting Kang
- Division of Cardiology, The First Affiliated Hospital, Nanchang University, Nanchang, People's Republic of China Cardiovascular Research Institute, Morehouse School of Medicine, Atlanta, Georgia, USA
| | - Tia M Jones
- Cardiovascular Research Institute, Morehouse School of Medicine, Atlanta, Georgia, USA
| | - Clayton Naddell
- Cardiovascular Research Institute, Morehouse School of Medicine, Atlanta, Georgia, USA
| | - Methode Bacanamwo
- Cardiovascular Research Institute, Morehouse School of Medicine, Atlanta, Georgia, USA
| | - John W Calvert
- Division of Cardiothoracic Surgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Winston E Thompson
- Department of Physiology, Morehouse School of Medicine, Atlanta, Georgia, USA
| | - Vincent C Bond
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, Georgia, USA
| | - Y Eugene Chen
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Dong Liu
- Cardiovascular Research Institute, Morehouse School of Medicine, Atlanta, Georgia, USA Department of Physiology, Morehouse School of Medicine, Atlanta, Georgia, USA
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The C421A (Q141K) polymorphism enhances the 3'-untranslated region (3'-UTR)-dependent regulation of ATP-binding cassette transporter ABCG2. Biochem Pharmacol 2016; 104:139-47. [PMID: 26903388 DOI: 10.1016/j.bcp.2016.02.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 02/18/2016] [Indexed: 01/05/2023]
Abstract
The impact of the gout-causing C421A (Q141K) single nucleotide polymorphism (SNP) on ABC transporter ABCG2 expression and function has been extensively characterized. However, the influence of the C421A SNP on 3'-UTR-dependent ABCG2 regulation has not been analysed so far. To elucidate this matter, we generated vectors for expression of either the ABCG2 coding sequence (ORF) or the ABCG2 ORF fused to its 3'-UTR, inserted the C421A mutation via site-directed mutagenesis and expressed wild-type and C421A-mutated ABCG2 transcripts in HEK293-Tet-On cells. As shown previously, the C421A SNP significantly reduced ABCG2 protein levels in ABCG2 ORF-transfected HEK293-Tet-On cells. Interestingly, the presence of the 3'-UTR in the ABCG2 transcript dramatically reduced ABCG2 protein content in cells transfected with the C421A variant but not significantly in those transfected with ABCG2 wild-type sequence, whereas ABCG2 mRNA levels were similar. siRNA-mediated DICER1 knockdown to reduce cellular microRNA biogenesis and selective mutation of putative microRNA binding sites within the ABCG2 3'-UTR partially antagonized C421A-associated reduction of ABCG2 protein content but did not significantly affect wild-type ABCG2 protein levels. In addition, antagomir-mediated inhibition of two microRNAs (hsa-miR-519c and hsa-miR-328) again partially reversed C421A-associated ABCG2 translational repression, thereby indicating that the C421A SNP may facilitate microRNA-dependent repression of ABCG2 protein translation. We conclude from our results that the C421A SNP may lead to reduced ABCG2 protein levels not only by affecting cellular protein stability but also via enhanced microRNA-dependent ABCG2 repression. Moreover, tissue-specific variation in ABCG2 3'-UTR processing may profoundly affect ABCG2 expression levels in individuals carrying the C421A mutation.
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Activation of the Thromboxane A2 Receptor by 8-Isoprostane Inhibits the Pro-Angiogenic Effect of Vascular Endothelial Growth Factor in Scleroderma. J Invest Dermatol 2015; 135:3153-3162. [PMID: 26288351 PMCID: PMC4648660 DOI: 10.1038/jid.2015.323] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/16/2015] [Accepted: 07/20/2015] [Indexed: 12/11/2022]
Abstract
The pathogenesis of scleroderma (SSc) includes components of autoimmunity, vascular dysfunction, and accumulation of extracellular matrix. 8-isoprostane, an oxidized lipid created by oxidative stress, activates the thromboxane A2 receptor (TXAR) and ROCK pathway. In this study we determined whether the TXAR was activated by 8-isoprostane in SSc endothelial cells (ECs), and whether this pathway inhibited VEGF-induced angiogenesis. Elevated 8-isoprostane was observed in plasma and conditioned media from SSc patients. SSc conditioned media inhibited EC tube formation, while addition of vitamin E, by reducing 8-isoprostane, increased tube formation. VEGF did not induce angiogenesis in SSc ECs, but vitamin E or TXAR inhibition restored its effect. The expression of TXAR, RhoA, and ROCK1/2 were elevated in SSc ECs. ROCK activity and 8-isoprostane-induced ROCK activation were significantly higher in SSc ECs while VEGF had no effect. The hyper-activation of the TXAR leads to inhibition of VEGF-induced angiogenesis, as inhibition of the TXAR pathway results in blockade of 8-isoprostane induced ROCK activation and restoration of VEGF activity. These results suggest that the TXAR pathway plays a crucial role in angiogenesis and that 8-isoprostane is not just a by-product of oxidative stress, but also plays a significant role in the impaired angiogenesis that characterizes SSc.
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Miao L, Wang Y, Lin CM, Xiong Y, Chen N, Zhang L, Kim WY, Huang L. Nanoparticle modulation of the tumor microenvironment enhances therapeutic efficacy of cisplatin. J Control Release 2015; 217:27-41. [PMID: 26285063 DOI: 10.1016/j.jconrel.2015.08.027] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 08/01/2015] [Accepted: 08/13/2015] [Indexed: 12/18/2022]
Abstract
The tumor microenvironment (TME) serves as a multidrug resistant center for tumors under the assault of chemotherapy and a physiological barrier against the penetration of therapeutic nanoparticles (NPs). Previous studies have indicated the ability for therapeutic NP to distribute into, and deplete tumor-associated fibroblasts (TAFs) for improved therapeutic outcomes. However, a drug resistant phenotype gradually arises after repeated doses of chemotherapeutic NP. Herein, the acquisition of drug resistant phenotypes in the TME after repeated cisplatin NP treatment was examined. Particularly, this study was aimed at investigating the effects of NP damaged TAFs on neighboring cells and alteration of stromal structure after cisplatin treatment. Findings suggested that while off-targeted NP damaged TAFs and inhibited tumor growth after an initial dose, chronic exposure to cisplatin NP led to elevated secretion of Wnt16 in a paracrine manner in TAFs. Wnt16 upregulation was then attributed to heightened tumor cell resistance and stroma reconstruction. Results attest to the efficacy of Wnt16 knockdown in damaged TAFs as a promising combinatory strategy to improve efficacy of cisplatin NP in a stroma-rich bladder cancer model.
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Affiliation(s)
- Lei Miao
- Division of Molecular Pharmaceutics and Center of Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yuhua Wang
- Division of Molecular Pharmaceutics and Center of Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - C Michael Lin
- Division of Molecular Pharmaceutics and Center of Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yang Xiong
- Division of Molecular Pharmaceutics and Center of Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; School of Pharmacy, Zhejiang Chinese Medical University, 310053, China
| | - Naihan Chen
- Division of Molecular Pharmaceutics and Center of Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Lu Zhang
- Division of Molecular Pharmaceutics and Center of Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - William Y Kim
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Leaf Huang
- Division of Molecular Pharmaceutics and Center of Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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Wang C, Luo Z, Kohan D, Wellstein A, Jose PA, Welch WJ, Wilcox CS, Wang D. Thromboxane prostanoid receptors enhance contractions, endothelin-1, and oxidative stress in microvessels from mice with chronic kidney disease. Hypertension 2015; 65:1055-63. [PMID: 25733239 DOI: 10.1161/hypertensionaha.115.05244] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 02/10/2015] [Indexed: 02/06/2023]
Abstract
Cardiovascular disease is frequent in chronic kidney disease and has been related to angiotensin II, endothelin-1 (ET-1), thromboxane A2, and reactive oxygen species (ROS). Because activation of thromboxane prostanoid receptors (TP-Rs) can generate ROS, which can generate ET-1, we tested the hypothesis that chronic kidney disease induces cyclooxygenase-2 whose products activate TP-Rs to enhance ET-1 and ROS generation and contractions. Mesenteric resistance arterioles were isolated from C57/BL6 or TP-R+/+ and TP-R-/- mice 3 months after SHAM-operation (SHAM) or surgical reduced renal mass (RRM, n=6/group). Microvascular contractions were studied on a wire myograph. Cellular (ethidium: dihydroethidium) and mitochondrial (mitoSOX) ROS were measured by fluorescence microscopy. Mice with RRM had increased excretion of markers of oxidative stress, thromboxane, and microalbumin; increased plasma ET-1; and increased microvascular expression of p22(phox), cyclooxygenase-2, TP-Rs, preproendothelin and endothelin-A receptors, and increased arteriolar remodeling. They had increased contractions to U-46,619 (118 ± 3 versus 87 ± 6, P<0.05) and ET-1 (108 ± 5 versus 89 ± 4, P<0.05), which were dependent on cellular and mitochondrial ROS, cyclooxygenase-2, and TP-Rs. RRM doubled the ET-1-induced cellular and mitochondrial ROS generation (P<0.05). TP-R-/- mice with RRM lacked these abnormal structural and functional microvascular responses and lacked the increased systemic and the increased microvascular oxidative stress and circulating ET-1. In conclusion, RRM leads to microvascular remodeling and enhanced ET-1-induced cellular and mitochondrial ROS and contractions that are mediated by cyclooxygenase-2 products activating TP-Rs. Thus, TP-Rs can be upstream from enhanced ROS, ET-1, microvascular remodeling, and contractility and may thereby coordinate vascular dysfunction in chronic kidney disease.
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Affiliation(s)
- Cheng Wang
- From the Hypertension, Kidney and Vascular Research Center and Division of Nephrology and Hypertension, Department of Medicine (C.W., Z.L., W.J.W., C.S.W., D.W.) and Department of Oncology, Lombardi Cancer Center (A.W.), Georgetown University, Washington, DC; Department of Nephrology, The Third Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China (C.W.); Division of Nephrology, Department of Medicine, University of Utah, Salt Lake City (D.K.); and Division of Nephrology, Department of Medicine and Department of Physiology, University of Maryland, Baltimore, MD (P.A.J.)
| | - Zaiming Luo
- From the Hypertension, Kidney and Vascular Research Center and Division of Nephrology and Hypertension, Department of Medicine (C.W., Z.L., W.J.W., C.S.W., D.W.) and Department of Oncology, Lombardi Cancer Center (A.W.), Georgetown University, Washington, DC; Department of Nephrology, The Third Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China (C.W.); Division of Nephrology, Department of Medicine, University of Utah, Salt Lake City (D.K.); and Division of Nephrology, Department of Medicine and Department of Physiology, University of Maryland, Baltimore, MD (P.A.J.)
| | - Donald Kohan
- From the Hypertension, Kidney and Vascular Research Center and Division of Nephrology and Hypertension, Department of Medicine (C.W., Z.L., W.J.W., C.S.W., D.W.) and Department of Oncology, Lombardi Cancer Center (A.W.), Georgetown University, Washington, DC; Department of Nephrology, The Third Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China (C.W.); Division of Nephrology, Department of Medicine, University of Utah, Salt Lake City (D.K.); and Division of Nephrology, Department of Medicine and Department of Physiology, University of Maryland, Baltimore, MD (P.A.J.)
| | - Anton Wellstein
- From the Hypertension, Kidney and Vascular Research Center and Division of Nephrology and Hypertension, Department of Medicine (C.W., Z.L., W.J.W., C.S.W., D.W.) and Department of Oncology, Lombardi Cancer Center (A.W.), Georgetown University, Washington, DC; Department of Nephrology, The Third Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China (C.W.); Division of Nephrology, Department of Medicine, University of Utah, Salt Lake City (D.K.); and Division of Nephrology, Department of Medicine and Department of Physiology, University of Maryland, Baltimore, MD (P.A.J.)
| | - Pedro A Jose
- From the Hypertension, Kidney and Vascular Research Center and Division of Nephrology and Hypertension, Department of Medicine (C.W., Z.L., W.J.W., C.S.W., D.W.) and Department of Oncology, Lombardi Cancer Center (A.W.), Georgetown University, Washington, DC; Department of Nephrology, The Third Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China (C.W.); Division of Nephrology, Department of Medicine, University of Utah, Salt Lake City (D.K.); and Division of Nephrology, Department of Medicine and Department of Physiology, University of Maryland, Baltimore, MD (P.A.J.)
| | - William J Welch
- From the Hypertension, Kidney and Vascular Research Center and Division of Nephrology and Hypertension, Department of Medicine (C.W., Z.L., W.J.W., C.S.W., D.W.) and Department of Oncology, Lombardi Cancer Center (A.W.), Georgetown University, Washington, DC; Department of Nephrology, The Third Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China (C.W.); Division of Nephrology, Department of Medicine, University of Utah, Salt Lake City (D.K.); and Division of Nephrology, Department of Medicine and Department of Physiology, University of Maryland, Baltimore, MD (P.A.J.)
| | - Christopher S Wilcox
- From the Hypertension, Kidney and Vascular Research Center and Division of Nephrology and Hypertension, Department of Medicine (C.W., Z.L., W.J.W., C.S.W., D.W.) and Department of Oncology, Lombardi Cancer Center (A.W.), Georgetown University, Washington, DC; Department of Nephrology, The Third Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China (C.W.); Division of Nephrology, Department of Medicine, University of Utah, Salt Lake City (D.K.); and Division of Nephrology, Department of Medicine and Department of Physiology, University of Maryland, Baltimore, MD (P.A.J.)
| | - Dan Wang
- From the Hypertension, Kidney and Vascular Research Center and Division of Nephrology and Hypertension, Department of Medicine (C.W., Z.L., W.J.W., C.S.W., D.W.) and Department of Oncology, Lombardi Cancer Center (A.W.), Georgetown University, Washington, DC; Department of Nephrology, The Third Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China (C.W.); Division of Nephrology, Department of Medicine, University of Utah, Salt Lake City (D.K.); and Division of Nephrology, Department of Medicine and Department of Physiology, University of Maryland, Baltimore, MD (P.A.J.).
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Bauer J, Ripperger A, Frantz S, Ergün S, Schwedhelm E, Benndorf RA. Pathophysiology of isoprostanes in the cardiovascular system: implications of isoprostane-mediated thromboxane A2 receptor activation. Br J Pharmacol 2015; 171:3115-31. [PMID: 24646155 DOI: 10.1111/bph.12677] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 02/20/2014] [Accepted: 03/03/2014] [Indexed: 12/13/2022] Open
Abstract
Isoprostanes are free radical-catalysed PG-like products of unsaturated fatty acids, such as arachidonic acid, which are widely recognized as reliable markers of systemic lipid peroxidation and oxidative stress in vivo. Moreover, activation of enzymes, such as COX-2, may contribute to isoprostane formation. Indeed, formation of isoprostanes is considerably increased in various diseases which have been linked to oxidative stress, such as cardiovascular disease (CVD), and may predict the atherosclerotic burden and the risk of cardiovascular complications in the latter patients. In addition, several isoprostanes may directly contribute to the functional consequences of oxidant stress via activation of the TxA2 prostanoid receptor (TP), for example, by affecting endothelial cell function and regeneration, vascular tone, haemostasis and ischaemia/reperfusion injury. In this context, experimental and clinical data suggest that selected isoprostanes may represent important alternative activators of the TP receptor when endogenous TxA2 levels are low, for example, in aspirin-treated individuals with CVD. In this review, we will summarize the current understanding of isoprostane formation, biochemistry and (patho) physiology in the cardiovascular context.
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Affiliation(s)
- Jochen Bauer
- Institute of Anatomy and Cell Biology, University of Würzburg, Würzburg, Germany
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Teraoka H, Okuno Y, Nijoukubo D, Yamakoshi A, Peterson RE, Stegeman JJ, Kitazawa T, Hiraga T, Kubota A. Involvement of COX2-thromboxane pathway in TCDD-induced precardiac edema in developing zebrafish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 154:19-26. [PMID: 24858302 PMCID: PMC4326229 DOI: 10.1016/j.aquatox.2014.04.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 04/19/2014] [Accepted: 04/21/2014] [Indexed: 05/06/2023]
Abstract
The cardiovascular system is one of the most characteristic and important targets for developmental toxicity by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in fish larvae. However, knowledge of the mechanism of TCDD-induced edema after heterodimerization of aryl hydrocarbon receptor type 2 (AHR2) and AHR nuclear translocator type 1 (ARNT1) is still limited. In the present study, microscopic analysis with a high-speed camera revealed that TCDD increased the size of a small cavity between the heart and body wall in early eleutheroembryos, a toxic effect that we designate as precardiac edema. A concentration-response curve for precardiac edema at 2 days post fertilization (dpf) showed close similarity to that for conventional pericardial edema at 3 dpf. Precardiac edema caused by TCDD was reduced by morpholino knockdown of AHR2 and ARNT1, as well as by an antioxidant (ascorbic acid). A selective inhibitor of cyclooxygenase type 2 (COX2), NS398, also markedly inhibited TCDD-induced precardiac edema. A thromboxane receptor (TP) antagonist, ICI-192,605 almost abolished TCDD-induced precardiac edema and this effect was canceled by U46619, a TP agonist, which was not influential in the action of TCDD by itself. Knockdown of COX2b and thromboxane A synthase 1 (TBXS), but not COX2a, strongly reduced TCDD-induced precardiac edema. Knockdown of COX2b was without effect on mesencephalic circulation failure caused by TCDD. The edema by TCDD was also inhibited by knockdown of c-mpl, a thrombopoietin receptor necessary for thromobocyte production. Finally, induction of COX2b, but not COX2a, by TCDD was seen in eleutheroembryos at 3 dpf. These results suggest a role of the COX2b-thromboxane pathway in precardiac edema formation following TCDD exposure in developing zebrafish.
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Affiliation(s)
- Hiroki Teraoka
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan.
| | - Yuki Okuno
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Daisuke Nijoukubo
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Ayumi Yamakoshi
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | | | - John J Stegeman
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | - Takio Kitazawa
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Takeo Hiraga
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Akira Kubota
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan; Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
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Banki E, Sosnowska D, Tucsek Z, Gautam T, Toth P, Tarantini S, Tamas A, Helyes Z, Reglodi D, Sonntag WE, Csiszar A, Ungvari Z. Age-related decline of autocrine pituitary adenylate cyclase-activating polypeptide impairs angiogenic capacity of rat cerebromicrovascular endothelial cells. J Gerontol A Biol Sci Med Sci 2014; 70:665-74. [PMID: 25136000 DOI: 10.1093/gerona/glu116] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 06/11/2014] [Indexed: 01/16/2023] Open
Abstract
Aging impairs angiogenic capacity of cerebromicrovascular endothelial cells (CMVECs) promoting microvascular rarefaction, but the underlying mechanisms remain elusive. PACAP is an evolutionarily conserved neuropeptide secreted by endothelial cells and neurons, which confers important antiaging effects. To test the hypothesis that age-related changes in autocrine PACAP signaling contributes to dysregulation of endothelial angiogenic capacity, primary CMVECs were isolated from 3-month-old (young) and 24-month-old (aged) Fischer 344 x Brown Norway rats. In aged CMVECs, expression of PACAP was decreased, which was associated with impaired capacity to form capillary-like structures, impaired adhesiveness to collagen (assessed using electric cell-substrate impedance sensing [ECIS] technology), and increased apoptosis (caspase3 activity) when compared with young cells. Overexpression of PACAP in aged CMVECs resulted in increased formation of capillary-like structures, whereas it did not affect cell adhesion. Treatment with recombinant PACAP also significantly increased endothelial tube formation and inhibited apoptosis in aged CMVECs. In young CMVECs shRNA knockdown of autocrine PACAP expression significantly impaired tube formation capacity, mimicking the aging phenotype. Cellular and mitochondrial reactive oxygen species production (dihydroethidium and MitoSox fluorescence, respectively) were increased in aged CMVECs and were unaffected by PACAP. Collectively, PACAP exerts proangiogenic effects and age-related dysregulation of autocrine PACAP signaling may contribute to impaired angiogenic capacity of CMVECs in aging.
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Affiliation(s)
- Eszter Banki
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center. Department of Anatomy, MTA-PTE PACAP Lendulet Research Team
| | - Danuta Sosnowska
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Zsuzsanna Tucsek
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Tripti Gautam
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Peter Toth
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Stefano Tarantini
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Andrea Tamas
- Department of Anatomy, MTA-PTE PACAP Lendulet Research Team
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, Szentágothai Research Center, and
| | - Dora Reglodi
- Department of Anatomy, MTA-PTE PACAP Lendulet Research Team
| | - William E Sonntag
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Anna Csiszar
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center. Department of Pathophysiology and Gerontology, Medical School and Szentagothai Research Center, University of Pécs, Hungary. Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center
| | - Zoltan Ungvari
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center. Department of Pathophysiology and Gerontology, Medical School and Szentagothai Research Center, University of Pécs, Hungary. Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center.
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50
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Exercise training could improve age-related changes in cerebral blood flow and capillary vascularity through the upregulation of VEGF and eNOS. BIOMED RESEARCH INTERNATIONAL 2014; 2014:230791. [PMID: 24822184 PMCID: PMC4005099 DOI: 10.1155/2014/230791] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 03/24/2014] [Indexed: 11/30/2022]
Abstract
This study aimed to investigate the effect of exercise training on age-induced microvascular alterations in the brain. Additionally, the association with the protein levels of vascular endothelial growth factor (VEGF) and endothelial nitric oxide synthase (eNOS) was also assessed. Male Wistar rats were divided into four groups: sedentary-young (SE-Young, n = 5), sedentary aged (SE-Aged, n = 8), immersed-aged (IM-Aged, n = 5), and exercise trained-aged (ET-Aged, 60 minutes/day and 5 days/week for 8 weeks, n = 8) rats. The MAPs of all aged groups, SE-Aged, IM-Aged, and ET-Aged, were significantly higher than that of the SE-Young group. The regional cerebral blood flow (rCBF) in the SE-Aged and IM-Aged was significantly decreased as compared to SE-Young groups. However, rCBF of ET-Aged group was significantly higher than that in the IM-Aged group (P < 0.05). Moreover, the percentage of capillary vascularity (%CV) and the levels of VEGF and eNOS in the ET-Aged group were significantly increased compared to the IM-Aged group (P < 0.05). These results imply that exercise training could improve age-induced microvascular changes and hypoperfusion closely associated with the upregulation of VEGF and eNOS.
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