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Nasir NJM, Heemskerk H, Jenkins J, Hamadee NH, Bunte R, Tucker-Kellogg L. Myoglobin-derived iron causes wound enlargement and impaired regeneration in pressure injuries of muscle. eLife 2023; 12:85633. [PMID: 37267120 DOI: 10.7554/elife.85633] [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: 01/31/2023] [Accepted: 04/25/2023] [Indexed: 06/04/2023] Open
Abstract
The reasons for poor healing of pressure injuries are poorly understood. Vascular ulcers are worsened by extracellular release of hemoglobin, so we examined the impact of myoglobin (Mb) iron in murine muscle pressure injuries (mPI). Tests used Mb-knockout or treatment with deferoxamine iron chelator (DFO). Unlike acute injuries from cardiotoxin, mPI regenerated poorly with a lack of viable immune cells, persistence of dead tissue (necro-slough), and abnormal deposition of iron. However, Mb-knockout or DFO-treated mPI displayed a reversal of the pathology: decreased tissue death, decreased iron deposition, decrease in markers of oxidative damage, and higher numbers of intact immune cells. Subsequently, DFO treatment improved myofiber regeneration and morphology. We conclude that myoglobin iron contributes to tissue death in mPI. Remarkably, a large fraction of muscle death in untreated mPI occurred later than, and was preventable by, DFO treatment, even though treatment started 12 hr after pressure was removed. This demonstrates an opportunity for post-pressure prevention to salvage tissue viability.
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Affiliation(s)
- Nurul Jannah Mohamed Nasir
- Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
- Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Hans Heemskerk
- Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
- BioSyM and CAMP Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology, CREATE, Singapore, Singapore
| | - Julia Jenkins
- Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | | | - Ralph Bunte
- Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Lisa Tucker-Kellogg
- Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
- Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
- BioSyM and CAMP Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology, CREATE, Singapore, Singapore
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Kuppuswamy S, Annex BH, Ganta VC. Targeting Anti-Angiogenic VEGF 165b-VEGFR1 Signaling Promotes Nitric Oxide Independent Therapeutic Angiogenesis in Preclinical Peripheral Artery Disease Models. Cells 2022; 11:2676. [PMID: 36078086 PMCID: PMC9454804 DOI: 10.3390/cells11172676] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/16/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Nitric oxide (NO) is the critical regulator of VEGFR2-induced angiogenesis. Neither VEGF-A over-expression nor L-Arginine (NO-precursor) supplementation has been effective in helping patients with Peripheral Artery Disease (PAD) in clinical trials. One incompletely studied reason may be due to the presence of the less characterized anti-angiogenic VEGF-A (VEGF165b) isoform. We have recently shown that VEGF165b inhibits ischemic angiogenesis by blocking VEGFR1, not VEGFR2 activation. Here we wanted to determine whether VEGF165b inhibition using a monoclonal isoform-specific antibody against VEGF165b vs. control, improved perfusion recovery in preclinical PAD models that have impaired VEGFR2-NO signaling, including (1) type-2 diabetic model, (2) endothelial Nitric oxide synthase-knock out mice, and (3) Myoglobin transgenic mice that have impaired NO bioavailability. In all PAD models, VEGF165b inhibition vs. control enhanced perfusion recovery, increased microvascular density in the ischemic limb, and activated VEGFR1-STAT3 signaling. In vitro, VEGF165b inhibition vs. control enhanced a VEGFR1-dependent endothelial survival/proliferation and angiogenic capacity. These data demonstrate that VEGF165b inhibition induces VEGFR1-STAT3 activation, which does not require increased NO to induce therapeutic angiogenesis in PAD. These results may have implications for advancing therapies for patients with PAD where the VEGFR2-eNOS-NO pathway is impaired.
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Affiliation(s)
| | | | - Vijay C. Ganta
- Vascular Biology Center and Department of Medicine, Augusta University, Augusta, GA 30912, USA
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3
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Catalán Ú, Pedret A, Yuste S, Rubió L, Piñol C, Sandoval-Ramírez BA, Companys J, Foguet E, Herrero P, Canela N, Motilva MJ, Solà R. Red-Fleshed Apples Rich in Anthocyanins and White-Fleshed Apples Modulate the Aorta and Heart Proteome in Hypercholesterolaemic Rats: The AppleCOR Study. Nutrients 2022; 14:nu14051047. [PMID: 35268023 PMCID: PMC8912372 DOI: 10.3390/nu14051047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/21/2022] [Accepted: 02/24/2022] [Indexed: 01/27/2023] Open
Abstract
The impact of a red-fleshed apple (RFA) rich in anthocyanins (ACNs), a white-fleshed apple (WFA) without ACNs, and an extract infusion from Aronia fruit (AI) equivalent in dose of cyanidin-3-O-galactoside (main ACN) as RFA was determined by the proteome profile of aorta and heart as key cardiovascular tissues. Hypercholesterolaemic Wistar rats were separated into six groups (n = 6/group; three males and three females) and the proteomic profiles were analyzed using nanoliquid chromatography coupled to mass spectrometry. No adverse events were reported and all products were well tolerated. RFA downregulated C1QB and CFP in aorta and CRP in heart. WFA downregulated C1QB and CFP in aorta and C9 and C3 in aorta and heart, among other proteins. AI downregulated PRKACA, IQGAP1, and HSP90AB1 related to cellular signaling. Thus, both apples showed an anti-inflammatory effect through the complement system, while RFA reduced CRP. Regardless of the ACN content, an apple matrix effect was observed that involved different bioactive components, and inflammatory proteins were reduced.
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Affiliation(s)
- Úrsula Catalán
- Functional Nutrition, Oxidation, and CVD Research Group (NFOC-Salut), Medicine and Surgery Department, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili, 43201 Reus, Spain; (Ú.C.); (B.A.S.-R.); (R.S.)
- Institut d’Investigació Sanitària Pere Virgili (IISPV), 43204 Reus, Spain
- Unitat de Nutrició i Salut, Eurecat, Centre Tecnològic de Catalunya, 43204 Reus, Spain;
| | - Anna Pedret
- Functional Nutrition, Oxidation, and CVD Research Group (NFOC-Salut), Medicine and Surgery Department, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili, 43201 Reus, Spain; (Ú.C.); (B.A.S.-R.); (R.S.)
- Unitat de Nutrició i Salut, Eurecat, Centre Tecnològic de Catalunya, 43204 Reus, Spain;
- Correspondence: ; Tel.: +34-977-75-9375
| | - Silvia Yuste
- Food Technology Department, Universitat de Lleida-AGROTECNIO Center, 25198 Lleida, Spain; (S.Y.); (L.R.)
| | - Laura Rubió
- Food Technology Department, Universitat de Lleida-AGROTECNIO Center, 25198 Lleida, Spain; (S.Y.); (L.R.)
| | - Carme Piñol
- Department of Medicine, Universitat de Lleida, 25008 Lleida, Spain;
- Institut de Recerca Biomèdica de Lleida, Fundació Dr. Pifarré-IRBLleida, 25198 Lleida, Spain
| | - Berner Andrée Sandoval-Ramírez
- Functional Nutrition, Oxidation, and CVD Research Group (NFOC-Salut), Medicine and Surgery Department, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili, 43201 Reus, Spain; (Ú.C.); (B.A.S.-R.); (R.S.)
| | - Judit Companys
- Unitat de Nutrició i Salut, Eurecat, Centre Tecnològic de Catalunya, 43204 Reus, Spain;
| | - Elisabet Foguet
- Eurecat, Centre Tecnològic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, 43204 Reus, Spain; (E.F.); (P.H.); (N.C.)
| | - Pol Herrero
- Eurecat, Centre Tecnològic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, 43204 Reus, Spain; (E.F.); (P.H.); (N.C.)
| | - Núria Canela
- Eurecat, Centre Tecnològic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, 43204 Reus, Spain; (E.F.); (P.H.); (N.C.)
| | - Maria-Jose Motilva
- Instituto de Ciencias de la Vid y del Vino (ICVV), Gobierno de La Rioja, CSIC, Universidad de La Rioja, 26007 Logroño, Spain;
| | - Rosa Solà
- Functional Nutrition, Oxidation, and CVD Research Group (NFOC-Salut), Medicine and Surgery Department, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili, 43201 Reus, Spain; (Ú.C.); (B.A.S.-R.); (R.S.)
- Unitat de Nutrició i Salut, Eurecat, Centre Tecnològic de Catalunya, 43204 Reus, Spain;
- Hospital Universitari Sant Joan de Reus (HUSJR), 43204 Reus, Spain
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MicroRNA-30b Is Both Necessary and Sufficient for Interleukin-21 Receptor-Mediated Angiogenesis in Experimental Peripheral Arterial Disease. Int J Mol Sci 2021; 23:ijms23010271. [PMID: 35008699 PMCID: PMC8745227 DOI: 10.3390/ijms23010271] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/20/2021] [Accepted: 12/20/2021] [Indexed: 01/05/2023] Open
Abstract
The interleukin-21 receptor (IL-21R) can be upregulated in endothelial cells (EC) from ischemic muscles in mice following hind-limb ischemia (HLI), an experimental peripheral arterial disease (PAD) model, blocking this ligand–receptor pathway-impaired STAT3 activation, angiogenesis, and perfusion recovery. We sought to identify mRNA and microRNA transcripts that were differentially regulated following HLI, based on the ischemic muscle having intact, or reduced, IL-21/IL21R signaling. In this comparison, 200 mRNAs were differentially expressed but only six microRNA (miR)/miR clusters (and among these only miR-30b) were upregulated in EC isolated from ischemic muscle. Next, myoglobin-overexpressing transgenic (MgTG) C57BL/6 mice examined following HLI and IL-21 overexpression displayed greater angiogenesis, better perfusion recovery, and less tissue necrosis, with increased miR-30b expression. In EC cultured under hypoxia serum starvation, knock-down of miR-30b reduced, while overexpression of miR-30b increased IL-21-mediated EC survival and angiogenesis. In Il21r−/− mice following HLI, miR-30b overexpression vs. control improved perfusion recovery, with a reduction of suppressor of cytokine signaling 3, a miR-30b target and negative regulator of STAT3. Together, miR-30b appears both necessary and sufficient for IL21/IL-21R-mediated angiogenesis and may present a new therapeutic option to treat PAD if the IL21R is not available for activation.
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Beltran-Camacho L, Jimenez-Palomares M, Rojas-Torres M, Sanchez-Gomar I, Rosal-Vela A, Eslava-Alcon S, Perez-Segura MC, Serrano A, Antequera-González B, Alonso-Piñero JA, González-Rovira A, Extremera-García MJ, Rodriguez-Piñero M, Moreno-Luna R, Larsen MR, Durán-Ruiz MC. Identification of the initial molecular changes in response to circulating angiogenic cells-mediated therapy in critical limb ischemia. Stem Cell Res Ther 2020; 11:106. [PMID: 32143690 PMCID: PMC7060566 DOI: 10.1186/s13287-020-01591-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/10/2020] [Accepted: 02/06/2020] [Indexed: 12/18/2022] Open
Abstract
Background Critical limb ischemia (CLI) constitutes the most aggressive form of peripheral arterial occlusive disease, characterized by the blockade of arteries supplying blood to the lower extremities, significantly diminishing oxygen and nutrient supply. CLI patients usually undergo amputation of fingers, feet, or extremities, with a high risk of mortality due to associated comorbidities. Circulating angiogenic cells (CACs), also known as early endothelial progenitor cells, constitute promising candidates for cell therapy in CLI due to their assigned vascular regenerative properties. Preclinical and clinical assays with CACs have shown promising results. A better understanding of how these cells participate in vascular regeneration would significantly help to potentiate their role in revascularization. Herein, we analyzed the initial molecular mechanisms triggered by human CACs after being administered to a murine model of CLI, in order to understand how these cells promote angiogenesis within the ischemic tissues. Methods Balb-c nude mice (n:24) were distributed in four different groups: healthy controls (C, n:4), shams (SH, n:4), and ischemic mice (after femoral ligation) that received either 50 μl physiological serum (SC, n:8) or 5 × 105 human CACs (SE, n:8). Ischemic mice were sacrificed on days 2 and 4 (n:4/group/day), and immunohistochemistry assays and qPCR amplification of Alu-human-specific sequences were carried out for cell detection and vascular density measurements. Additionally, a label-free MS-based quantitative approach was performed to identify protein changes related. Results Administration of CACs induced in the ischemic tissues an increase in the number of blood vessels as well as the diameter size compared to ischemic, non-treated mice, although the number of CACs decreased within time. The initial protein changes taking place in response to ischemia and more importantly, right after administration of CACs to CLI mice, are shown. Conclusions Our results indicate that CACs migrate to the injured area; moreover, they trigger protein changes correlated with cell migration, cell death, angiogenesis, and arteriogenesis in the host. These changes indicate that CACs promote from the beginning an increase in the number of vessels as well as the development of an appropriate vascular network. Graphical abstract ![]()
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Affiliation(s)
- Lucia Beltran-Camacho
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | - Margarita Jimenez-Palomares
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | - Marta Rojas-Torres
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | - Ismael Sanchez-Gomar
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | - Antonio Rosal-Vela
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | - Sara Eslava-Alcon
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | | | - Ana Serrano
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain
| | - Borja Antequera-González
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | - Jose Angel Alonso-Piñero
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | - Almudena González-Rovira
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | - Mª Jesús Extremera-García
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain.,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain
| | | | - Rafael Moreno-Luna
- Laboratory of Neuroinflammation, Hospital Nacional de Paraplejicos, SESCAM, Toledo, Spain
| | - Martin Røssel Larsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Mª Carmen Durán-Ruiz
- Biomedicine, Biotechnology and Public Health Department, Cádiz University, Cadiz, Spain. .,Institute of Biomedical Research Cadiz (INIBICA), Cadiz, Spain.
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Hu H, Li L, Yu T, Li Y, Tang Y. Interleukin-22 receptor 1 upregulation and activation in hypoxic endothelial cells improves perfusion recovery in experimental peripheral arterial disease. Biochem Biophys Res Commun 2018; 505:60-66. [PMID: 30236983 DOI: 10.1016/j.bbrc.2018.08.163] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 08/27/2018] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Inflammation induced by muscle ischemia is involved in tissue repair and perfusion recovery in peripheral arterial disease (PAD) patients. Interleukin (IL)-22 is an inflammatory cytokine discovered in recent years and shows versatile functions; however, its role in PAD remains unknown. Here, we test whether IL-22 and its receptors are involved in angiogenesis in experimental PAD. METHODS AND RESULTS Both IL-22 and its receptor-IL-22 receptor 1(IL-22R1) were upregulated in muscle and endothelial cells after ischemia. In experimental PAD models, blocking IL-22 using IL-22 monoclonal antibody impaired perfusion recovery and angiogenesis; on the other hand, IL-22 treatment improved perfusion recovery. Ischemic muscle tissue was harvested 3 days after experimental PAD for biochemical test, IL-22 antagonism resulted in decreased Signal Transducer and Activator of Transcription (STAT3) phosphorylation, but did not alter the levels of VEGF-A or cyclic guanine monophosphate (cGMP) levels in ischemic muscle. In cultured endothelial cells, IL-22R1 was upregulated under simulated ischemic conditions, and IL-22 treatment increased STAT3 phosphorylation, endothelial cell survival and tube formation. Knock down of IL-22R1 or treatment with STAT3 inhibitor blunted IL-22-induced endothelial cell survival or tube formation. CONCULSION Ischemia-induced IL-22 and IL-22R1 upregulation improves angiogenesis in PAD by inducing STAT3 phosphorylation in endothelial cells. IL-22R1 may serve as a new therapeutic target for PAD.
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Affiliation(s)
- Hongyao Hu
- Department of Interventional Radiology, Department of Radiology, Renmin Hospital of Wuhan University, 238Jiefang Road, Wuhan, Hubei, 430060, PR China; Cardiovascular Research Institute, Wuhan University, Hubei Key Laboratory of Cardiology, Wuhan, Hubei, 430060, PR China.
| | - Le Li
- Department of Cardiology, Taikang Tongji (Wuhan) Hospital, PR China
| | - Taihui Yu
- Department of Cardiology, Hubei Provincial Hospital of Integrated Chinese&Western Medicine, Wuhan, PR China
| | - Yanjun Li
- Department of Cardiology, Taikang Tongji (Wuhan) Hospital, PR China
| | - Yanhong Tang
- Cardiovascular Research Institute, Wuhan University, Hubei Key Laboratory of Cardiology, Wuhan, Hubei, 430060, PR China; Department of Cardiology, Renmin Hospital of Wuhan University, PR China
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Fu J, Zou J, Chen C, Li H, Wang L, Zhou Y. Hydrogen molecules (H2) improve perfusion recovery via antioxidant effects in experimental peripheral arterial disease. Mol Med Rep 2018; 18:5009-5015. [PMID: 30320393 PMCID: PMC6236306 DOI: 10.3892/mmr.2018.9546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 09/03/2018] [Indexed: 11/24/2022] Open
Abstract
Reactive oxygen species (ROS) impair neovascularization and perfusion recovery following limb ischemia in patients with peripheral arterial disease (PAD). Hydrogen molecules (H2) comprise an antioxidant gas that has been reported to neutralize cytotoxic ROS. The present study investigated whether H2 may serve as a novel therapeutic strategy for PAD. H2-saturated water or dehydrogenized water was supplied to mice with experimental PAD. Laser Doppler perfusion imaging demonstrated that H2-saturated water improved perfusion recovery, decreased the rate of necrosis, increased the capillary density in the gastrocnemius muscle and increased the artery density in the abductor muscle in the ischemic limbs, at 14 and 21 days post-hindlimb ischemia. Ischemic muscle tissue was harvested 7 days after experimental PAD for biochemical testing and H2 was observed to reduce the levels of malondialdehyde and increase the levels of cyclic guanine monophosphate (cGMP). In cultured endothelial cells, H2-saturated culture medium resulted in reduced ROS levels, increased tube formation and increased cGMP levels. In macrophages, H2 decreased cellular ROS levels and promoted M2 polarization. H2-saturated water increases angiogenesis and arteriogenesis and subsequently improves perfusion recovery in a mouse PAD model via reduction of ROS levels.
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Affiliation(s)
- Jinrong Fu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jinjing Zou
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Cheng Chen
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hongying Li
- Department of Gynecology, Hubei Maternal and Child Hospital, Wuhan, Hubei 430070, P.R. China
| | - Lei Wang
- Department of Cardiology, Hubei University of Chinese Medicine, Wuhan, Hubei 430060, P.R. China
| | - Yanli Zhou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Structural Changes in the Pancreas and Its Blood Vessels at the Early Stages of Ischemia. BIONANOSCIENCE 2016. [DOI: 10.1007/s12668-016-0265-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Ranjbar K, Rahmani-Nia F, Shahabpour E. Aerobic training and l-arginine supplementation promotes rat heart and hindleg muscles arteriogenesis after myocardial infarction. J Physiol Biochem 2016; 72:393-404. [PMID: 27121159 DOI: 10.1007/s13105-016-0480-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 03/09/2016] [Indexed: 12/18/2022]
Abstract
Arteriogenesis is a main defense mechanism to prevent heart and local tissues dysfunction in occlusive artery disease. TGF-β and angiostatin have a pivotal role in arteriogenesis. We tested the hypothesis that aerobic training and l-arginine supplementation promotes cardiac and skeletal muscles arteriogenesis after myocardial infarction (MI) parallel to upregulation of TGF-β and downregulation of angiostatin. For this purpose, 4 weeks after LAD occlusion, 50 male Wistar rats were randomly distributed into five groups: (1) sham surgery without MI (sham, n = 10), (2) control-MI (Con-MI, n = 10), (3) l-arginine-MI (La-MI, n = 10), (4) exercise training-MI (Ex-MI, n = 10), and (5) exercise and l-arginine-MI (Ex + La-MI). Exercise training groups running on a treadmill for 10 weeks with moderate intensity. Rats in the l-arginine-treated groups drank water containing 4 % l-arginine. Arteriolar density with different diameters (11-25, 26-50, 51-75, and 76-150 μm), TGF-β, and angiostatin gene expression were measured in cardiac (area at risk) and skeletal (soleus and gastrocnemius) muscles. Smaller arterioles decreased in cardiac after MI. Aerobic training and l-arginine increased the number of cardiac arterioles with 11-25 and 26-50 μm diameters parallel to TGF-β overexpression. In gastrocnemius muscle, the number of arterioles/mm(2) was only increased in the 11 to 25 μm in response to training with and without l-arginine parallel to angiostatin downregulation. Soleus arteriolar density with different size was not different between experimental groups. Results showed that 10 weeks aerobic exercise training and l-arginine supplementation promotes arteriogenesis of heart and gastrocnemius muscles parallel to overexpression of TGF-β and downregulation of angiostatin in MI rats.
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Affiliation(s)
- Kamal Ranjbar
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran
| | - Farhad Rahmani-Nia
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran.
| | - Elham Shahabpour
- Exercise Physiology Department, Faculty of Physical Education and Sport Science, Shiraz University, Fars, Iran
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10
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Wang T, Cunningham A, Houston K, Sharma AM, Chen L, Dokun AO, Lye RJ, Spolski R, Leonard WJ, Annex BH. Endothelial interleukin-21 receptor up-regulation in peripheral artery disease. Vasc Med 2015; 21:99-104. [PMID: 26705256 DOI: 10.1177/1358863x15621798] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In most patients with symptomatic peripheral artery disease (PAD), severe stenosis in or occlusion of the major blood vessels that supply the legs make the amount of distal blood flow dependent on the capacity to induce angiogenesis and collateral vessel formation. Currently, there are no medications that improve perfusion to the ischemic limb, and thus directly treat the primary problem of PAD. A recent report from our group in a pre-clinical mouse PAD model showed that interleukin-21 receptor (IL-21R) is up-regulated in the endothelial cells from ischemic hindlimb muscle. We further showed that loss of IL-21R resulted in impaired perfusion recovery in this model. In our study, we sought to determine whether IL-21R is present in the endothelium from ischemic muscle of patients with PAD. Using human gastrocnemius muscle biopsies, we found increased levels of IL-21R in the skeletal muscle endothelial cells of patients with PAD compared to control individuals. Interestingly, PAD patients had approximately 1.7-fold higher levels of circulating IL-21. These data provide direct evidence that the IL-21R pathway is indeed up-regulated in patients with PAD. This pathway may serve as a therapeutic target for modulation.
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Affiliation(s)
- Tao Wang
- Robert M Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
| | - Alexis Cunningham
- Robert M Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
| | - Kevin Houston
- Robert M Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
| | - Aditya M Sharma
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Lingdan Chen
- Robert M Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
| | - Ayotunde O Dokun
- Robert M Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
| | - R John Lye
- Robert M Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
| | - Rosanne Spolski
- Laboratory of Molecular Immunology and the Immunology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Warren J Leonard
- Laboratory of Molecular Immunology and the Immunology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Brian H Annex
- Robert M Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
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11
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Evaluation of the clinical relevance and limitations of current pre-clinical models of peripheral artery disease. Clin Sci (Lond) 2015; 130:127-50. [DOI: 10.1042/cs20150435] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Peripheral artery disease (PAD) has recognized treatment deficiencies requiring the discovery of novel interventions. This article describes current animal models of PAD and discusses their advantages and disadvantages. There is a need for models which more directly simulate the characteristics of human PAD, such as acute-on-chronic presentation, presence of established risk factors and impairment of physical activity.
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Dokun AO, Chen L, Okutsu M, Farber CR, Hazarika S, Jones WS, Craig D, Marchuk DA, Lye RJ, Shah SH, Annex BH. ADAM12: a genetic modifier of preclinical peripheral arterial disease. Am J Physiol Heart Circ Physiol 2015; 309:H790-803. [PMID: 26163448 DOI: 10.1152/ajpheart.00803.2014] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 06/07/2015] [Indexed: 01/27/2023]
Abstract
In prior studies from multiple groups, outcomes following experimental peripheral arterial disease (PAD) differed considerably across inbred mouse strains. Similarly, in humans with PAD, disease outcomes differ, even when there are similarities in risk factors, disease anatomy, arteriosclerotic burden, and hemodynamic measures. Previously, we identified a locus on mouse chromosome 7, limb salvage-associated quantitative trait locus 1 (LSq-1), which was sufficient to modify outcomes following experimental PAD. We compared expression of genes within LSq-1 in Balb/c mice, which normally show poor outcomes following experimental PAD, with that in C57Bl/6 mice, which normally show favorable outcomes, and found that a disintegrin and metalloproteinase gene 12 (ADAM12) had the most differential expression. Augmentation of ADAM12 expression in vivo improved outcomes following experimental PAD in Balb/c mice, whereas knockdown of ADAM12 made outcomes worse in C57Bl/6 mice. In vitro, ADAM12 expression modulates endothelial cell proliferation, survival, and angiogenesis in ischemia, and this appeared to be dependent on tyrosine kinase with Ig-like and EGF-like domain 2 (Tie2) activation. ADAM12 is sufficient to modify PAD severity in mice, and this likely occurs through regulation of Tie2.
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Affiliation(s)
- Ayotunde O Dokun
- Division of Endocrinology, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Virginia; The Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia;
| | - Lingdan Chen
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Mitsuharu Okutsu
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Charles R Farber
- Division of Public Health Genomics, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Surovi Hazarika
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Virginia
| | - W Schuyler Jones
- Division of Cardiology, Department of Medicine, Duke Molecular Physiology Institute, Duke University Medical Center, Durham, North Carolina; and
| | - Damian Craig
- Division of Cardiology, Department of Medicine, Duke Molecular Physiology Institute, Duke University Medical Center, Durham, North Carolina; and
| | - Douglas A Marchuk
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina
| | - R John Lye
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Virginia; The Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Svati H Shah
- Division of Cardiology, Department of Medicine, Duke Molecular Physiology Institute, Duke University Medical Center, Durham, North Carolina; and
| | - Brian H Annex
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Virginia; The Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
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Chu LH, Vijay CG, Annex BH, Bader JS, Popel AS. PADPIN: protein-protein interaction networks of angiogenesis, arteriogenesis, and inflammation in peripheral arterial disease. Physiol Genomics 2015; 47:331-43. [PMID: 26058837 DOI: 10.1152/physiolgenomics.00125.2014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 06/04/2015] [Indexed: 11/22/2022] Open
Abstract
Peripheral arterial disease (PAD) results from an obstruction of blood flow in the arteries other than the heart, most commonly the arteries that supply the legs. The complexity of the known signaling pathways involved in PAD, including various growth factor pathways and their cross talks, suggests that analyses of high-throughput experimental data could lead to a new level of understanding of the disease as well as novel and heretofore unanticipated potential targets. Such bioinformatic analyses have not been systematically performed for PAD. We constructed global protein-protein interaction networks of angiogenesis (Angiome), immune response (Immunome), and arteriogenesis (Arteriome) using our previously developed algorithm GeneHits. The term "PADPIN" refers to the angiome, immunome, and arteriome in PAD. Here we analyze four microarray gene expression datasets from ischemic and nonischemic gastrocnemius muscles at day 3 posthindlimb ischemia (HLI) in two genetically different C57BL/6 and BALB/c mouse strains that display differential susceptibility to HLI to identify potential targets and signaling pathways in angiogenesis, immune, and arteriogenesis networks. We hypothesize that identification of the differentially expressed genes in ischemic and nonischemic muscles between the strains that recovers better (C57BL/6) vs. the strain that recovers more poorly (BALB/c) will help for the prediction of target genes in PAD. Our bioinformatics analysis identified several genes that are differentially expressed between the two mouse strains with known functions in PAD including TLR4, THBS1, and PRKAA2 and several genes with unknown functions in PAD including EphA4, TSPAN7, SLC22A4, and EIF2a.
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Affiliation(s)
- Liang-Hui Chu
- Department of Biomedical Engineering, School of Medicine, Johns Hopkins University, Baltimore, Maryland;
| | - Chaitanya G Vijay
- Cardiovascular Medicine, Department of Medicine, and the Robert M. Berne Cardiovascular Research Center University of Virginia School of Medicine, Charlottesville, Virginia; and
| | - Brian H Annex
- Cardiovascular Medicine, Department of Medicine, and the Robert M. Berne Cardiovascular Research Center University of Virginia School of Medicine, Charlottesville, Virginia; and
| | - Joel S Bader
- Department of Biomedical Engineering, School of Medicine, Johns Hopkins University, Baltimore, Maryland; High-Throughput Biology Center, Johns Hopkins University, Baltimore, Maryland
| | - Aleksander S Popel
- Department of Biomedical Engineering, School of Medicine, Johns Hopkins University, Baltimore, Maryland
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Lee LK, Kim JH, Kim MY, Lee JU, Yang SM, Jeon HJ, Lee WD, Noh JW, Kwak TY, Jang SH, Lee TH, Kim JY, Kim J. A Pilot Study on Pain and the Upregulation of Myoglobin through Low-frequency and High-amplitude Electrical Stimulation-induced Muscle Contraction. J Phys Ther Sci 2014; 26:985-8. [PMID: 25140079 PMCID: PMC4135220 DOI: 10.1589/jpts.26.985] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 01/08/2014] [Indexed: 12/02/2022] Open
Abstract
[Purpose] It is well known that, in both in vivo and in vitro tests, muscle fatigue is
produced by severe exercise, electrical stimulation, and so on. However, it is not clear
whether or not low-frequency and high-amplitude modulation specifically affects serum
myoglobin or urine myoglobin. The purpose of the present study was to determine the effect
of low-frequency and high-amplitude modulation on serum myoglobin and urine myoglobin.
[Methods] The study used whole blood samples and urine produced over 24 hours from the
thirteen healthy subjects. [Results] There was a significant increase in serum myoglobin
following electrical stimulation at a frequency of 10 Hz compared with the control group.
Furthermore, within 24 hours, urine myoglobin also showed a significant increase for the
test volunteers subjected to electrical stimulation at the 10 Hz frequency compared with
the control group. However, there were no significant differences in the concentrations of
hematologic results in subjects treated with electrical stimulation. [Conclusion] These
results suggest that increased myoglobin related to muscle fatigue from electrical
stimulation, particularly with a current of 10 Hz combined with a high-amplitude, may be
partially related to increased muscle damage.
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Affiliation(s)
- Lim-Kyu Lee
- Laboratory of Health Science and Nanophysiotherapy, Department of Physical Therapy, Graduate School, Yongin University, Republic of Korea
| | - Ju-Hyun Kim
- Laboratory of Health Science and Nanophysiotherapy, Department of Physical Therapy, Graduate School, Yongin University, Republic of Korea
| | - Mee-Young Kim
- Laboratory of Health Science and Nanophysiotherapy, Department of Physical Therapy, Graduate School, Yongin University, Republic of Korea
| | - Jeong-Uk Lee
- Laboratory of Health Science and Nanophysiotherapy, Department of Physical Therapy, Graduate School, Yongin University, Republic of Korea
| | - Seung-Min Yang
- Laboratory of Health Science and Nanophysiotherapy, Department of Physical Therapy, Graduate School, Yongin University, Republic of Korea
| | - Hye-Joo Jeon
- Laboratory of Health Science and Nanophysiotherapy, Department of Physical Therapy, Graduate School, Yongin University, Republic of Korea
| | - Won-Deok Lee
- Laboratory of Health Science and Nanophysiotherapy, Department of Physical Therapy, Graduate School, Yongin University, Republic of Korea
| | - Ji-Woong Noh
- Laboratory of Health Science and Nanophysiotherapy, Department of Physical Therapy, Graduate School, Yongin University, Republic of Korea
| | - Taek-Yong Kwak
- Department of Taekwondo Instructor Education, College of Martial Arts, Yongin University, Republic of Korea
| | - Sung-Ho Jang
- Department of Judo Training, College of Martial Arts, Yongin University, Republic of Korea
| | - Tae-Hyun Lee
- Department of Combative Martial Arts Training, College of Martial Arts, Yongin University, Republic of Korea
| | - Ju-Young Kim
- Department of Combative Martial Arts Training, College of Martial Arts, Yongin University, Republic of Korea
| | - Junghwan Kim
- Department of Physical Therapy, College of Public Health and Welfare, Yongin University, Republic of Korea
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15
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Meisner JK, Song J, Annex BH, Price RJ. Myoglobin overexpression inhibits reperfusion in the ischemic mouse hindlimb through impaired angiogenesis but not arteriogenesis. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 183:1710-1718. [PMID: 24095922 DOI: 10.1016/j.ajpath.2013.08.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 08/20/2013] [Accepted: 08/26/2013] [Indexed: 02/02/2023]
Abstract
Adaptive vascular remodeling in response to arterial occlusion takes the form of capillary growth (angiogenesis) and outward remodeling of pre-existing collateral arteries (arteriogenesis). However, the relative contributions of angiogenesis and arteriogenesis toward the overall reperfusion response are both highly debated and poorly understood. Here, we tested the hypothesis that myoglobin overexpressing transgenic mice (MbTg(+)) exhibit impaired angiogenesis in the setting of normal arteriogenesis in response to femoral artery ligation, and thereby serve as a model for disconnecting these two vascular growth processes. After femoral artery ligation, MbTg(+) mice were characterized by delayed distal limb reperfusion (by laser Doppler perfusion imaging), decreased foot use, and impaired distal limb muscle angiogenesis in both glycolytic and oxidative muscle fiber regions at day 7. Substantial arteriogenesis occurred in the primary collaterals supplying the ischemic limb in both wild-type and MbTg(+) mice; however, there were no significant differences between groups, indicating that myoglobin overexpression does not affect arteriogenesis. Together, these results uniquely demonstrate that functional collateral arteriogenesis alone is not necessarily sufficient for adequate reperfusion after arterial occlusion. Angiogenesis is a key component of an effective reperfusion response, and clinical strategies that target both angiogenesis and arteriogenesis could yield the most efficacious treatments for peripheral arterial disease.
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Affiliation(s)
- Joshua K Meisner
- Division of Cardiovascular Medicine, Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Ji Song
- Division of Cardiovascular Medicine, Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Brian H Annex
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia
| | - Richard J Price
- Division of Cardiovascular Medicine, Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia; Department of Radiology, University of Virginia, Charlottesville, Virginia; Department of Radiation Oncology, University of Virginia, Charlottesville, Virginia.
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16
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Yavuz C, Yazici S, Karahan O, Demirtas S, Caliskan A, Guclu O, Ertas F, Mavitas B. Serum nitric oxide level could be a predictive biomarker for detection of critical ischaemia duration. Biomarkers 2013; 18:116-20. [DOI: 10.3109/1354750x.2012.745165] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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van Wessel T, de Haan A, van der Laarse WJ, Jaspers RT. The muscle fiber type-fiber size paradox: hypertrophy or oxidative metabolism? Eur J Appl Physiol 2010; 110:665-94. [PMID: 20602111 PMCID: PMC2957584 DOI: 10.1007/s00421-010-1545-0] [Citation(s) in RCA: 180] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2010] [Indexed: 12/11/2022]
Abstract
An inverse relationship exists between striated muscle fiber size and its oxidative capacity. This relationship implies that muscle fibers, which are triggered to simultaneously increase their mass/strength (hypertrophy) and fatigue resistance (oxidative capacity), increase these properties (strength or fatigue resistance) to a lesser extent compared to fibers increasing either of these alone. Muscle fiber size and oxidative capacity are determined by the balance between myofibrillar protein synthesis, mitochondrial biosynthesis and degradation. New experimental data and an inventory of critical stimuli and state of activation of the signaling pathways involved in regulating contractile and metabolic protein turnover reveal: (1) higher capacity for protein synthesis in high compared to low oxidative fibers; (2) competition between signaling pathways for synthesis of myofibrillar proteins and proteins associated with oxidative metabolism; i.e., increased mitochondrial biogenesis via AMP-activated protein kinase attenuates the rate of protein synthesis; (3) relatively higher expression levels of E3-ligases and proteasome-mediated protein degradation in high oxidative fibers. These observations could explain the fiber type-fiber size paradox that despite the high capacity for protein synthesis in high oxidative fibers, these fibers remain relatively small. However, it remains challenging to understand the mechanisms by which contractile activity, mechanical loading, cellular energy status and cellular oxygen tension affect regulation of fiber size. Therefore, one needs to know the relative contribution of the signaling pathways to protein turnover in high and low oxidative fibers. The outcome and ideas presented are relevant to optimizing treatment and training in the fields of sports, cardiology, oncology, pulmonology and rehabilitation medicine.
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Affiliation(s)
- T. van Wessel
- Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Van der Boechorststraat 9, 1081 BT Amsterdam, The Netherlands
| | - A. de Haan
- Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Van der Boechorststraat 9, 1081 BT Amsterdam, The Netherlands
- Institute for Biomedical Research into Human Movement and Health, Manchester Metropolitan University, Manchester, UK
| | - W. J. van der Laarse
- Department of Physiology, Institute for Cardiovascular Research, VU University Medical Centre, Amsterdam, The Netherlands
| | - R. T. Jaspers
- Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Van der Boechorststraat 9, 1081 BT Amsterdam, The Netherlands
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Hendgen-Cotta UB, Flögel U, Kelm M, Rassaf T. Unmasking the Janus face of myoglobin in health and disease. J Exp Biol 2010; 213:2734-40. [DOI: 10.1242/jeb.041178] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
SUMMARY
For more than 100 years, myoglobin has been among the most extensively studied proteins. Since the first comprehensive review on myoglobin function as a dioxygen store by Millikan in 1939 and the discovery of its structure 50 years ago, multiple studies have extended our understanding of its occurrence, properties and functions. Beyond the two major roles, the storage and the facilitation of dioxygen diffusion, recent physiological studies have revealed that myoglobin acts as a potent scavenger of nitric oxide (NO•) representing a control system that preserves mitochondrial respiration. In addition, myoglobin may also protect the heart against reactive oxygen species (ROS), and, under hypoxic conditions, deoxygenated myoglobin is able to reduce nitrite to NO• leading to a downregulation of the cardiac energy status and to a decreased heart injury after reoxygenation. Thus, by controlling the NO• bioavailability via scavenging or formation, myoglobin serves as part of a sensitive dioxygen sensory system. In this review, the physiological relevance of these recent findings are delineated for pathological states where NO• and ROS bioavailability are known to be critical determinants for the outcome of the disease, e.g. ischemia/reperfusion injury. Detrimental and beneficial effects of the presence of myoglobin are discussed for various states of tissue oxygen tension within the heart and skeletal muscle. Furthermore, the impact of myoglobin on parasite infection, rhabdomyolysis, hindlimb and liver ischemia, angiogenesis and tumor growth are considered.
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Affiliation(s)
- U. B. Hendgen-Cotta
- Department of Medicine, Division of Cardiology, Pulmonary Diseases and Angiology, University Hospital Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - U. Flögel
- Department of Cardiovascular Physiology, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - M. Kelm
- Department of Medicine, Division of Cardiology, Pulmonary Diseases and Angiology, University Hospital Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - T. Rassaf
- Department of Medicine, Division of Cardiology, Pulmonary Diseases and Angiology, University Hospital Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
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Nitric oxide stimulates myoglobin gene and protein expression in vascular smooth muscle. Biochem J 2009; 423:169-77. [PMID: 19650765 DOI: 10.1042/bj20090716] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Mb (myoglobin) is a haemoprotein present in cardiac, skeletal and smooth muscle and is primarily responsible for the storage and 'facilitated transfer' of molecular oxygen from the cell membrane to mitochondria. Also, Mb plays a role in regulating *NO (nitric oxide) homoeostasis through (i) binding *NO (Mb-NO complex); (ii) oxidation of *NO to nitrate; and (iii) formation of vasoactive S-nitroso-Mb [Rayner, B.S., Wu, B.-J., Raftery, M., Stocker, R. and Witting, P.K. (2005) J. Biol. Chem. 280, 9985-9993]. Pathological *NO concentrations affect mitochondrial function and decrease cell viability through inducing apoptosis. Treatment of cultured rat VSMCs (vascular smooth muscle cells) with cumulative doses (0.1, 1 or 10 microM) of *NO from the donors diethylamineNONOate or spermineNONOate (N-[2-aminoethyl]-N-[2-hydroxy-3-nitrosohydrazine]-1,2-ethelenediamine) yielded a time-dependent increase in Mb gene expression. Concomitant transcriptional activation increased the concentration of Mb within cultured rat or primary human VSMCs as judged by Western blot analysis and indirect immunofluorescence microscopy. Cell viability did not decrease in these cells at the *NO doses tested. Importantly, sub-culturing isolated rat aortic segments for 7 days in the presence of L-arginine at 37 degrees C stimulated *NO production with a parallel increase in Mb in the underlying VSMCs. Overall, exposure of VSMCs (either in cell culture or intact vessels) to pathological *NO promotes an up-regulation of the Mb gene and protein, suggesting a feedback relationship between *NO and Mb that regulates the concentration of the potent cell signalling molecule in the vessel wall, similar to the role haemoglobin plays in the vessel lumen.
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Bekedam MA, van Beek-Harmsen BJ, van Mechelen W, Boonstra A, van der Laarse WJ. Myoglobin concentration in skeletal muscle fibers of chronic heart failure patients. J Appl Physiol (1985) 2009; 107:1138-43. [PMID: 19661455 DOI: 10.1152/japplphysiol.00149.2009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The purpose of this study was to determine the myoglobin concentration in skeletal muscle fibers of chronic heart failure (CHF) patients and to calculate the effect of myoglobin on oxygen buffering and facilitated diffusion. Myoglobin concentration, succinate dehydrogenase (SDH) activity, and cross-sectional area of individual muscle fibers from the vastus lateralis of five control and nine CHF patients were determined using calibrated histochemistry. CHF patients compared with control subjects were similar with respect to myoglobin concentration: type I fibers 0.69 +/- 0.11 mM (mean +/- SD), type II fibers 0.52 +/- 0.07 mM in CHF vs. type I fibers 0.70 +/- 0.09 mM, type II fibers 0.49 +/- 0.07 mM in control, whereas SDH activity was significantly lower in CHF in both fiber types (P < 0.01). The myoglobin concentration in type I fibers was higher than in type II fibers (P < 0.01). Consequently, the oxygen buffering capacity, calculated from myoglobin concentration/SDH activity was increased in CHF: type I fibers 11.4 +/- 2.1 s, type II fibers 13.6 +/- 3.9 s in CHF vs. type I fibers 7.8 +/- 0.9 s, type II fibers 7.5 +/- 1.0 s in control, all P < 0.01). The calculated extracellular oxygen tension required to prevent core anoxia (Po2(crit)) in muscle fibers was similar when controls were compared with patients in type I fibers 10.3 +/- 0.9 Torr in CHF and 11.5 +/- 3.3 Torr in control, but was lower in type II fibers of patients 6.1 +/- 2.8 Torr in CHF and 14.7 +/- 6.2 Torr in control, P < 0.01. The lower Po2(crit) of type II fibers may facilitate oxygen extraction from capillaries. Reduced exercise tolerance in CHF is not due to myoglobin deficiency.
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Affiliation(s)
- Martijn A Bekedam
- Department of Physiology, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands
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