1
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Woo KV, Shen IY, Weinheimer CJ, Kovacs A, Nigro J, Lin CY, Chakinala M, Byers DE, Ornitz DM. Endothelial FGF signaling is protective in hypoxia-induced pulmonary hypertension. J Clin Invest 2021; 131:141467. [PMID: 34623323 DOI: 10.1172/jci141467] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 06/25/2021] [Indexed: 01/08/2023] Open
Abstract
Hypoxia-induced pulmonary hypertension (PH) is one of the most common and deadliest forms of PH. Fibroblast growth factor receptors 1 and 2 (FGFR1/2) are elevated in patients with PH and in mice exposed to chronic hypoxia. Endothelial FGFR1/2 signaling is important for the adaptive response to several injury types and we hypothesized that endothelial FGFR1/2 signaling would protect against hypoxia-induced PH. Mice lacking endothelial FGFR1/2, mice with activated endothelial FGFR signaling, and human pulmonary artery endothelial cells (HPAECs) were challenged with hypoxia. We assessed the effect of FGFR activation and inhibition on right ventricular pressure, vascular remodeling, and endothelial-mesenchymal transition (EndMT), a known pathologic change seen in patients with PH. Hypoxia-exposed mice lacking endothelial FGFRs developed increased PH, while mice overexpressing a constitutively active FGFR in endothelial cells did not develop PH. Mechanistically, lack of endothelial FGFRs or inhibition of FGFRs in HPAECs led to increased TGF-β signaling and increased EndMT in response to hypoxia. These phenotypes were reversed in mice with activated endothelial FGFR signaling, suggesting that FGFR signaling inhibits TGF-β pathway-mediated EndMT during chronic hypoxia. Consistent with these observations, lung tissue from patients with PH showed activation of FGFR and TGF-β signaling. Collectively, these data suggest that activation of endothelial FGFR signaling could be therapeutic for hypoxia-induced PH.
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Affiliation(s)
- Kel Vin Woo
- Division of Cardiology, Department of Pediatrics.,Department of Developmental Biology
| | | | | | | | | | | | - Murali Chakinala
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Derek E Byers
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
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2
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Li M, Chen F, Zhang Y, Xiong Y, Li Q, Huang H. Identification of Post-myocardial Infarction Blood Expression Signatures Using Multiple Feature Selection Strategies. Front Physiol 2020; 11:483. [PMID: 32581823 PMCID: PMC7287215 DOI: 10.3389/fphys.2020.00483] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/20/2020] [Indexed: 12/24/2022] Open
Abstract
Myocardial infarction (MI) is a type of serious heart attack in which the blood flow to the heart is suddenly interrupted, resulting in injury to the heart muscles due to a lack of oxygen supply. Although clinical diagnosis methods can be used to identify the occurrence of MI, using the changes of molecular markers or characteristic molecules in blood to characterize the early phase and later trend of MI will help us choose a more reasonable treatment plan. Previously, comparative transcriptome studies focused on finding differentially expressed genes between MI patients and healthy people. However, signature molecules altered in different phases of MI have not been well excavated. We developed a set of computational approaches integrating multiple machine learning algorithms, including Monte Carlo feature selection (MCFS), incremental feature selection (IFS), and support vector machine (SVM), to identify gene expression characteristics on different phases of MI. 134 genes were determined to serve as features for building optimal SVM classifiers to distinguish acute MI and post-MI. Subsequently, functional enrichment analyses followed by protein-protein interaction analysis on 134 genes identified several hub genes (IL1R1, TLR2, and TLR4) associated with progression of MI, which can be used as new diagnostic molecules for MI.
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Affiliation(s)
- Ming Li
- Department of Cardiology, Eastern Hospital, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Fuli Chen
- Department of Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Yaling Zhang
- Department of Nephrology, Eastern Hospital, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Yan Xiong
- Department of Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Qiyong Li
- Department of Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Hui Huang
- Department of Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
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3
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Eyries M, Montani D, Girerd B, Favrolt N, Riou M, Faivre L, Manaud G, Perros F, Gräf S, Morrell NW, Humbert M, Soubrier F. Familial pulmonary arterial hypertension by KDR heterozygous loss of function. Eur Respir J 2020; 55:13993003.02165-2019. [PMID: 31980491 DOI: 10.1183/13993003.02165-2019] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 01/02/2020] [Indexed: 11/05/2022]
Abstract
Beyond the major gene BMPR2, several new genes predisposing to PAH have been identified during the last decade. Recently, preliminary evidence of the involvement of the KDR gene was found in a large genetic association study.We prospectively analysed the KDR gene by targeted panel sequencing in a series of 311 PAH patients referred to a clinical molecular laboratory for genetic diagnosis of PAH.Two index cases with severe PAH from two different families were found to carry a loss-of-function mutation in the KDR gene. These two index cases were clinically characterised by low diffusing capacity for carbon monoxide adjusted for haemoglobin (D LCOc) and interstitial lung disease. In one family, segregation analysis revealed that variant carriers are either presenting with PAH associated with low D LCOc, or have only decreased D LCOc, whereas non-carrier relatives have normal D LCOc. In the second family, a single affected carrier was alive. His carrier mother was unaffected with normal D LCOc.We provided genetic evidence for considering KDR as a newly identified PAH-causing gene by describing the segregation of KDR mutations with PAH in two families. In our study, KDR mutations are associated with a particular form of PAH characterised by low D LCOc and radiological evidence of parenchymal lung disease including interstitial lung disease and emphysema.
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Affiliation(s)
- Mélanie Eyries
- Hôpital Pitié-Salpêtrière, Département de génétique, Assistance Publique-Hôpitaux de Paris, Paris, France.,UMR_S1166-ICAN, Sorbonne Université, INSERM, Paris, France.,Equally contributing authors
| | - David Montani
- Univ. Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France.,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Hôpital Marie Lannelongue, Le Plessis Robinson, France.,Equally contributing authors
| | - Barbara Girerd
- Univ. Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France.,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France
| | - Nicolas Favrolt
- Service de Pneumologie et Soins Intensifs Respiratoires, Centre de référence constitutif des maladies pulmonaires rares de l'adulte, Centre de compétence de l'hypertension pulmonaire, CHU Dijon-Bourgogne, Dijon, France
| | - Marianne Riou
- Service de pneumologie, Nouvel hôpital civil, Strasbourg, France
| | - Laurence Faivre
- Centre de génétique, FHU TRANSLAD, Institut GIMI et UMR INSERM 1231, CHU de Dijon et Université de Bourgogne, Dijon, France
| | - Grégoire Manaud
- UMR_S 999, Univ. Paris-Sud, INSERM, Hôpital Marie Lannelongue, Le Plessis Robinson, France
| | - Frédéric Perros
- UMR_S 999, Univ. Paris-Sud, INSERM, Hôpital Marie Lannelongue, Le Plessis Robinson, France
| | - Stefan Gräf
- NIHR Bioresource - Rare Diseases, Cambridge Biomedical Campus, Cambridge, UK.,Dept of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK.,Dept of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Nicholas W Morrell
- NIHR Bioresource - Rare Diseases, Cambridge Biomedical Campus, Cambridge, UK.,Dept of Medicine, University of Cambridge School of Clinical Medicine, Addenbrooke's and Royal Papworth Hospitals, Cambridge, UK
| | - Marc Humbert
- Univ. Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France.,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Hôpital Marie Lannelongue, Le Plessis Robinson, France
| | - Florent Soubrier
- Hôpital Pitié-Salpêtrière, Département de génétique, Assistance Publique-Hôpitaux de Paris, Paris, France .,UMR_S1166-ICAN, Sorbonne Université, INSERM, Paris, France
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4
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Thirunavukkarasu M, Selvaraju V, Joshi M, Coca-Soliz V, Tapias L, Saad I, Fournier C, Husain A, Campbell J, Yee SP, Sanchez JA, Palesty JA, McFadden DW, Maulik N. Disruption of VEGF Mediated Flk-1 Signaling Leads to a Gradual Loss of Vessel Health and Cardiac Function During Myocardial Infarction: Potential Therapy With Pellino-1. J Am Heart Assoc 2019; 7:e007601. [PMID: 30371196 PMCID: PMC6222946 DOI: 10.1161/jaha.117.007601] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background The present study demonstrates that the ubiquitin E3 ligase, Pellino‐1 (Peli1), is an important angiogenic molecule under the control of vascular endothelial growth factor (VEGF) receptor 2/Flk‐1. We have previously reported increased survivability of ischemic skin flap tissue by adenovirus carrying Peli1 (Ad‐Peli1) gene therapy in Flk‐1+/− mice. Methods and Results Two separate experimental groups of mice were subjected to myocardial infarction (MI) followed by the immediate intramyocardial injection of adenovirus carrying LacZ (Ad‐LacZ) (1×109 pfu) or Ad‐Peli1 (1×109 pfu). Heart tissues were collected for analyses. Compared with wild‐type (WTMI) mice, analysis revealed decreased expressions of Peli1, phosphorylated (p‐)Flk‐1, p‐Akt, p‐eNOS, p‐MK2, p‐IκBα, and NF‐κB and decreased vessel densities in Flk‐1+/− mice subjected to MI (Flk‐1+/−MI). Mice (CD1) treated with Ad‐Peli1 after the induction of MI showed increased β‐catenin translocation to the nucleus, connexin 43 expression, and phosphorylation of Akt, eNOS, MK2, and IκBα, that was followed by increased vessel densities compared with the Ad‐LacZ–treated group. Echocardiography conducted 30 days after surgery showed decreased function in the Flk1+/−MI group compared with WTMI, which was restored by Ad‐Peli1 gene therapy. In addition, therapy with Ad‐Peli1 stimulated angiogenic and arteriogenic responses in both CD1 and Flk‐1+/− mice following MI. Ad‐Peli1 treatment attenuated cardiac fibrosis in Flk‐1+/−MI mice. Similar positive results were observed in CD1 mice subjected to MI after Ad‐Peli1 therapy. Conclusion Our results show for the first time that Peli1 plays a unique role in salvaging impaired collateral blood vessel formation, diminishes fibrosis, and improves myocardial function, thereby offering clinical potential for therapies in humans to mend a damaged heart following MI.
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Affiliation(s)
- Mahesh Thirunavukkarasu
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,2 Department of Surgery University of Connecticut Health Farmington CT
| | - Vaithinathan Selvaraju
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,2 Department of Surgery University of Connecticut Health Farmington CT
| | - Mandip Joshi
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,3 Stanley J. Dudrick Department of Surgery Saint Mary's Hospital Waterbury CT
| | - Vladimir Coca-Soliz
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,3 Stanley J. Dudrick Department of Surgery Saint Mary's Hospital Waterbury CT
| | - Leonidas Tapias
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,3 Stanley J. Dudrick Department of Surgery Saint Mary's Hospital Waterbury CT
| | - IbnalWalid Saad
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,3 Stanley J. Dudrick Department of Surgery Saint Mary's Hospital Waterbury CT
| | - Craig Fournier
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,2 Department of Surgery University of Connecticut Health Farmington CT
| | - Aaftab Husain
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,2 Department of Surgery University of Connecticut Health Farmington CT
| | - Jacob Campbell
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,2 Department of Surgery University of Connecticut Health Farmington CT
| | - Siu-Pok Yee
- 4 Center for Mouse Genome Modification University of Connecticut Health Farmington CT
| | - Juan A Sanchez
- 3 Stanley J. Dudrick Department of Surgery Saint Mary's Hospital Waterbury CT
| | - J Alexander Palesty
- 3 Stanley J. Dudrick Department of Surgery Saint Mary's Hospital Waterbury CT
| | - David W McFadden
- 2 Department of Surgery University of Connecticut Health Farmington CT
| | - Nilanjana Maulik
- 1 Molecular Cardiology and Angiogenesis Laboratory University of Connecticut Health Farmington CT.,2 Department of Surgery University of Connecticut Health Farmington CT
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5
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Rednam CK, Wilson RL, Selvaraju V, Rishi MT, Thirunavukkarasu M, Coca-Soliz V, Lakshmanan R, Palesty JA, McFadden DW, Maulik N. Increased survivability of ischemic skin flap tissue in Flk-1 +/- mice by Pellino-1 intervention. Microcirculation 2018; 24. [PMID: 28177171 DOI: 10.1111/micc.12362] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 02/03/2017] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Reduced skin flap survival due to ischemia is a serious concern during reconstructive cosmetic surgery. The absence of VEGF and its receptors during ischemia may lead to flap failure. We identified Peli1, a 46-kDa protein, as a proangiogenic molecule and is directly regulated by VEGF. Therefore, we hypothesized that Peli1 acts downstream of Flk-1/VEGFR2 and aids in skin flap survival during ischemia. METHODS Scratch and matrigel assays were performed to observe cell proliferation, migration, and tube formation in vitro. Western blot analysis was carried out to detect the phosphorylation of Akt (p-Akt) and MAPKAPK2 (p-MK2) in HUVECs. The translational potential of Peli1 pretreatment in the rescue of skin flap tissue was studied in vivo using Flk-1+/- mice. Animals underwent dorsal ischemic skin flap surgery, and the tissue was collected on day 12 for analysis. RESULTS Western blot analysis revealed a direct relationship between Peli1 and VEGF, as demonstrated by loss-of-function and gain-of-function studies. In addition, pretreatment with Ad.Peli1 restored the phosphorylation of Akt and MK2 and improved the migration potential of Flk-1-knockdown cells. Ad.Peli1 pretreatment salvaged the ischemic skin flap of Flk-1+/- mice by increasing blood perfusion and reducing the inflammatory response and the extent of necrosis. CONCLUSION Our findings reveal that Peli1 is a proangiogenic molecule that acts downstream of VEGF-Flk-1 and restores angiogenesis and enhances skin flap survivability.
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Affiliation(s)
- Chandra K Rednam
- Department of Surgery, Molecular Cardiology and Angiogenesis Laboratory, University of Connecticut Health, Farmington, CT, USA
| | - Rickesha L Wilson
- Department of Surgery, Molecular Cardiology and Angiogenesis Laboratory, University of Connecticut Health, Farmington, CT, USA
| | - Vaithinathan Selvaraju
- Department of Surgery, Molecular Cardiology and Angiogenesis Laboratory, University of Connecticut Health, Farmington, CT, USA
| | - Muhammad T Rishi
- Department of Surgery, Molecular Cardiology and Angiogenesis Laboratory, University of Connecticut Health, Farmington, CT, USA.,Stanley J. Dudrick, Department of Surgery, Saint Mary's Hospital, Waterbury, CT, USA
| | - Mahesh Thirunavukkarasu
- Department of Surgery, Molecular Cardiology and Angiogenesis Laboratory, University of Connecticut Health, Farmington, CT, USA
| | - Vladimir Coca-Soliz
- Department of Surgery, Molecular Cardiology and Angiogenesis Laboratory, University of Connecticut Health, Farmington, CT, USA.,Stanley J. Dudrick, Department of Surgery, Saint Mary's Hospital, Waterbury, CT, USA
| | - Rajesh Lakshmanan
- Department of Surgery, Molecular Cardiology and Angiogenesis Laboratory, University of Connecticut Health, Farmington, CT, USA
| | - John A Palesty
- Stanley J. Dudrick, Department of Surgery, Saint Mary's Hospital, Waterbury, CT, USA
| | - David W McFadden
- Department of Surgery, Molecular Cardiology and Angiogenesis Laboratory, University of Connecticut Health, Farmington, CT, USA
| | - Nilanjana Maulik
- Department of Surgery, Molecular Cardiology and Angiogenesis Laboratory, University of Connecticut Health, Farmington, CT, USA
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6
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Wasserstrum Y, Kornowski R, Raanani P, Leader A, Pasvolsky O, Iakobishvili Z. Hypertension in cancer patients treated with anti-angiogenic based regimens. CARDIO-ONCOLOGY 2015; 1:6. [PMID: 33530150 PMCID: PMC7837153 DOI: 10.1186/s40959-015-0009-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 11/25/2015] [Indexed: 02/08/2023]
Abstract
New anti-cancer drugs that inhibit the vascular endothelial growth factor (VEGF) signaling pathway are highly effective in the treatment of solid tumors, however concerns remain regarding their cardiovascular safety. The most common side effect of VEGF signaling pathway (VSP) inhibition is the development of systemic hypertension. We review the incidence, possible mechanisms, significance and management of hypertension in patients treated with VSP inhibitors.
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Affiliation(s)
- Yishay Wasserstrum
- Department of Cardiology, Rabin Medical Center, Petah Tikva, 49100, Israel.,Sackler School of Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ran Kornowski
- Department of Cardiology, Rabin Medical Center, Petah Tikva, 49100, Israel.,Sackler School of Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Pia Raanani
- Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel.,Sackler School of Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Avi Leader
- Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel.,Sackler School of Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Oren Pasvolsky
- Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel.,Sackler School of Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Zaza Iakobishvili
- Department of Cardiology, Rabin Medical Center, Petah Tikva, 49100, Israel. .,Sackler School of Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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7
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Markova DZ, Kepler CK, Addya S, Murray HB, Vaccaro AR, Shapiro IM, Anderson DG, Albert TJ, Risbud MV. An organ culture system to model early degenerative changes of the intervertebral disc II: profiling global gene expression changes. Arthritis Res Ther 2014; 15:R121. [PMID: 24171898 PMCID: PMC3978582 DOI: 10.1186/ar4301] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 09/16/2013] [Indexed: 12/15/2022] Open
Abstract
Introduction Despite many advances in our understanding of the molecular basis of disc degeneration, there remains a paucity of preclinical models which can be used to study the biochemical and molecular events that drive disc degeneration, and the effects of potential therapeutic interventions. The goal of this study is to characterize global gene expression changes in a disc organ culture system that mimics early nontraumatic disc degeneration. Methods To mimic a degenerative insult, rat intervertebral discs were cultured in the presence of TNF-α, IL-1β and serum-limiting conditions. Gene expression analysis was performed using a microarray to identify differential gene expression between experimental and control groups. Differential pattern of gene expression was confirmed using quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) or Western blot. Results Treatment resulted in significant changes in expression of more than 1,000 genes affecting many aspects of cell function including cellular movement, the cell cycle, cellular development, and cell death and proliferation. Many of the most highly upregulated and downregulated genes have known functions in disc degeneration and extracellular matrix hemostasis. Construction of gene networks based on known cellular pathways and expression data from our analysis demonstrated that the network associated with cell death, cell cycle regulation and DNA replication and repair was most heavily affected in this model of disc degeneration. Conclusions This rat organ culture model uses cytokine exposure to induce wide gene expression changes with the most affected genes having known reported functions in disc degeneration. We propose that this model is a valuable tool to study the etiology of disc degeneration and evaluate potential therapeutic treatments.
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8
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Kitagawa D, Yokota K, Gouda M, Narumi Y, Ohmoto H, Nishiwaki E, Akita K, Kirii Y. Activity-based kinase profiling of approved tyrosine kinase inhibitors. Genes Cells 2012; 18:110-22. [PMID: 23279183 DOI: 10.1111/gtc.12022] [Citation(s) in RCA: 158] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Accepted: 10/28/2012] [Indexed: 12/13/2022]
Abstract
The specificities of nine approved tyrosine kinase inhibitors (imatinib, dasatinib, nilotinib, gefitinib, erlotinib, lapatinib, sorafenib, sunitinib, and pazopanib) were determined by activity-based kinase profiling using a large panel of human recombinant active kinases. This panel consisted of 79 tyrosine kinases, 199 serine/threonine kinases, three lipid kinases, and 29 disease-relevant mutant kinases. Many potential targets of each inhibitor were identified by kinase profiling at the K(m) for ATP. In addition, profiling at a physiological ATP concentration (1 mm) was carried out, and the IC(50) values of the inhibitors against each kinase were compared with the estimated plasma-free concentration (calculated from published pharmacokinetic parameters of plasma C(trough) and C(max) values). This analysis revealed that the approved kinase inhibitors were well optimized for their target kinases. This profiling also implicates activity at particular off-target kinases in drug side effects. Thus, large-scale kinase profiling at both K(m) and physiological ATP concentrations could be useful in characterizing the targets and off-targets of kinase inhibitors.
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Affiliation(s)
- Daisuke Kitagawa
- Carna Biosciences Inc., 1-5-5 Minatojima-Minamimachi, Chuo-ku, Kobe, Japan.
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9
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Yasuhara R, Ohta Y, Yuasa T, Kondo N, Hoang T, Addya S, Fortina P, Pacifici M, Iwamoto M, Enomoto-Iwamoto M. Roles of β-catenin signaling in phenotypic expression and proliferation of articular cartilage superficial zone cells. J Transl Med 2011; 91:1739-52. [PMID: 21968810 PMCID: PMC3759358 DOI: 10.1038/labinvest.2011.144] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The superficial zone (SFZ) of articular cartilage has unique structural and biomechanical features, is thought to promote self-renewal of articular cartilage, and is thus important for joint long-term function, but the mechanisms regulating its properties remain unclear. Previous studies revealed that Wnt/β-catenin signaling is continuously active in SFZ, indicating that it may be essential for SFZ function. Thus, we examined whether Wnt/β-catenin signaling regulates proliferation and phenotypic expression in SFZ cells. Using transgenic mice, we found that acute activation of Wnt/β-catenin signaling increases SFZ thickness, Proteoglycan 4 (Prg4, also called lubricin) expression and the number of slow-cell cycle cells, whereas conditional ablation of β-catenin causes the opposite. We developed a novel method to isolate SFZ cell-rich populations from the epiphyseal articular cartilage of neonatal mice, and found that the SFZ cells in culture exhibit a fibroblastic cytoarchitecture and higher Prg4 and Ets-related gene (Erg) expression and lower aggrecan expression compared with chondrocyte cultures. Gene array analyses indicated that SFZ cells have distinct gene expression profiles compared with underlying articular chondrocytes. Treatment of Wnt3a strongly stimulated SFZ cell proliferation and maintained strong expression of Prg4 and Erg, whereas ablation of β-catenin strongly impaired proliferation and phenotypic expression. When the cells were transplanted into athymic mice, they formed Prg4- and aggrecan-expressing cartilaginous masses attesting to their autonomous phenotypic capacity. Ablation of β-catenin caused a rapid loss of Prg4 gene expression and strong increases in expression of aggrecan and collagen 10, the latter being a trait of hypertrophic chondrocytes. Together, the data reveal that Wnt/β-catenin signaling is a key regulator of SFZ cell phenotype and proliferation, and may be as important for articular cartilage long-term function.
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Affiliation(s)
- Rika Yasuhara
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopedic Surgery, Department of Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
| | - Yoichi Ohta
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopedic Surgery, Department of Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
| | - Takahito Yuasa
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopedic Surgery, Department of Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
| | - Naoki Kondo
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopedic Surgery, Department of Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
| | - Tai Hoang
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopedic Surgery, Department of Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
| | - Sankar Addya
- Department of Cancer Biology, Kimmel Center, Thomas Jefferson University, Philadelphia, PA, 19104
| | - Paolo Fortina
- Department of Cancer Biology, Kimmel Center, Thomas Jefferson University, Philadelphia, PA, 19104
| | - Maurizio Pacifici
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopedic Surgery, Department of Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
| | - Masahiro Iwamoto
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopedic Surgery, Department of Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
| | - Motomi Enomoto-Iwamoto
- Translational Research Program in Pediatric Orthopaedics, Division of Orthopedic Surgery, Department of Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
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10
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Novel role of NADPH oxidase in ischemic myocardium: a study with Nox2 knockout mice. Funct Integr Genomics 2011; 12:501-14. [DOI: 10.1007/s10142-011-0256-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Revised: 09/13/2011] [Accepted: 10/03/2011] [Indexed: 10/15/2022]
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11
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Adluri RS, Thirunavukkarasu M, Dunna NR, Zhan L, Oriowo B, Takeda K, Sanchez JA, Otani H, Maulik G, Fong GH, Maulik N. Disruption of hypoxia-inducible transcription factor-prolyl hydroxylase domain-1 (PHD-1-/-) attenuates ex vivo myocardial ischemia/reperfusion injury through hypoxia-inducible factor-1α transcription factor and its target genes in mice. Antioxid Redox Signal 2011; 15:1789-97. [PMID: 21083501 PMCID: PMC3159109 DOI: 10.1089/ars.2010.3769] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Hypoxia-inducible transcription factor (HIF)-prolyl hydroxylases domain (PHD-1-3) are oxygen sensors that regulate the stability of the HIFs in an oxygen-dependent manner. Suppression of PHD enzymes leads to stabilization of HIFs and offers a potential treatment option for many ischemic disorders, such as peripheral artery occlusive disease, myocardial infarction, and stroke. Here, we show that homozygous disruption of PHD-1 (PHD-1(-/-)) could facilitate HIF-1α-mediated cardioprotection in ischemia/reperfused (I/R) myocardium. Wild-type (WT) and PHD-1(-/-) mice were randomized into WT time-matched control (TMC), PHD-1(-/-) TMC (PHD1TMC), WT I/R, and PHD-1(-/-) I/R (PHD1IR). Isolated hearts from each group were subjected to 30 min of global ischemia followed by 2 h of reperfusion. TMC hearts were perfused for 2 h 30 min without ischemia. Decreased infarct size (35%±0.6% vs. 49%±0.4%) and apoptotic cardiomyocytes (106±13 vs. 233±21 counts/100 high-power field) were observed in PHD1IR compared to wild-type ischemia/reperfusion (WTIR). Protein expression of HIF-1α was significantly increased in PHD1IR compared to WTIR. mRNA expression of β-catenin (1.9-fold), endothelial nitric oxide synthase (1.9-fold), p65 (1.9-fold), and Bcl-2 (2.7-fold) were upregulated in the PHD1IR compared with WTIR, which was studied by real-time quantitative polymerase chain reaction. Further, gel-shift analysis showed increased DNA binding activity of HIF-1α and nuclear factor-kappaB in PHD1IR compared to WTIR. In addition, nuclear translocation of β-catenin was increased in PHD1IR compared with WTIR. These findings indicated that silencing of PHD-1 attenuates myocardial I/R injury probably by enhancing HIF-1α/β-catenin/endothelial nitric oxide synthase/nuclear factor-kappaB and Bcl-2 signaling pathway.
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Affiliation(s)
- Ram Sudheer Adluri
- Molecular Cardiology and Angiogenesis Laboratory, Department of Surgery, University of Connecticut School of Medicine, 263 Farmington Ave., Farmington, CT 06032-1110, USA
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12
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Cardiotoxicity of kinase inhibitors: the prediction and translation of preclinical models to clinical outcomes. Nat Rev Drug Discov 2011; 10:111-26. [PMID: 21283106 DOI: 10.1038/nrd3252] [Citation(s) in RCA: 258] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Shergill U, Das A, Langer D, Adluri R, Maulik N, Shah VH. Inhibition of VEGF- and NO-dependent angiogenesis does not impair liver regeneration. Am J Physiol Regul Integr Comp Physiol 2010; 298:R1279-87. [PMID: 20421635 DOI: 10.1152/ajpregu.00836.2009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Angiogenesis occurs through a convergence of diverse signaling mechanisms with prominent pathways that include autocrine effects of endothelial nitric oxide (NO) synthase (eNOS)-derived NO and vascular endothelial growth factor (VEGF). However, the redundant and distinct roles of NO and VEGF in angiogenesis remain incompletely defined. Here, we use the partial hepatectomy model in mice genetically deficient in eNOS to ascertain the influence of eNOS-derived NO on the angiogenesis that accompanies liver regeneration. While sinusoidal endothelial cell (SEC) eNOS promotes angiogenesis in vitro, surprisingly the absence of eNOS did not influence the angiogenesis that occurs after partial hepatectomy in vivo. While this observation could not be attributed to induction of alternate NOS isoforms, it was associated with induction of VEGF signaling as evidenced by enhanced levels of VEGF ligand in regenerating livers from mice genetically deficient in eNOS. However, surprisingly, mice that were genetically heterozygous for deficiency in the VEGF receptor, fetal liver kinase-1, also maintained unimpaired capacity for liver regeneration. In summary, inhibition of VEGF- and NO-dependent angiogenesis does not impair liver regeneration, indicating signaling redundancies that allow liver regeneration to continue in the absence of this canonical vascular pathway.
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Affiliation(s)
- U Shergill
- Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
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Lionetti V, Cantoni S, Cavallini C, Bianchi F, Valente S, Frascari I, Olivi E, Aquaro GD, Bonavita F, Scarlata I, Maioli M, Vaccari V, Tassinari R, Bartoli A, Recchia FA, Pasquinelli G, Ventura C. Hyaluronan mixed esters of butyric and retinoic acid affording myocardial survival and repair without stem cell transplantation. J Biol Chem 2010; 285:9949-9961. [PMID: 20097747 PMCID: PMC2843241 DOI: 10.1074/jbc.m109.087254] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Possible cardiac repair by adult stem cell transplantation is currently hampered by poor cell viability and delivery efficiency, uncertain differentiating fate in vivo, the needs of ex vivo cell expansion, and consequent delay in transplantation after the onset of heart attack. By the aid of magnetic resonance imaging, positron emission tomography, and immunohistochemistry, we show that injection of a hyaluronan mixed ester of butyric and retinoic acid (HBR) into infarcted rat hearts afforded substantial cardiovascular repair and recovery of myocardial performance. HBR restored cardiac [18F]fluorodeoxyglucose uptake and increased capillary density and led to the recruitment of endogenous Stro-1-positive stem cells. A terminal deoxynucleotidyltransferase-mediated dUTP nick end labeling assay demonstrated that HBR-treated hearts exhibited a decrease in the number of apoptotic cardiomyocytes. In isolated rat cardiomyocytes and Stro-1 stem cells, HBR enhanced the transcription of vascular endothelial growth factor, hepatocyte growth factor, kdr, akt, and pim-1. HBR also increased the secretion of vascular endothelial growth factor and hepatocyte growth factor, suggesting that the mixed ester may have recruited both myocardial and Stro-1 cells also. An increase in capillarogenesis was induced in vitro with medium obtained from HBR-exposed cells. In the infarcted myocardium, HBR injection increased histone H4 acetylation significantly. Acetyl-H4 immunoreactivity increased in rat cardiomyocytes and Stro-1 cells exposed to HBR, compared with untreated cells. In conclusion, efficient cardiac regenerative therapy can be afforded by HBR without the need of stem cell transplantation or vector-mediated gene delivery.
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Affiliation(s)
- Vincenzo Lionetti
- Sector of Medicine, Scuola Superiore S. Anna, I-56124 Pisa, Italy; Institute of Clinical Physiology, Consiglio Nazionale delle Ricerche Fondazione G. Monasterio, I-56124 Pisa, Italy
| | - Silvia Cantoni
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino
| | - Claudia Cavallini
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino
| | - Francesca Bianchi
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino
| | - Sabrina Valente
- Department of Hematology, Oncology, and Clinical Pathology, University of Bologna, I-40138 Bologna, Italy
| | - Irene Frascari
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino
| | - Elena Olivi
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino
| | - Giovanni D Aquaro
- Institute of Clinical Physiology, Consiglio Nazionale delle Ricerche Fondazione G. Monasterio, I-56124 Pisa, Italy
| | - Francesca Bonavita
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino
| | - Ignazio Scarlata
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino
| | - Margherita Maioli
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy
| | - Valentina Vaccari
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino
| | - Riccardo Tassinari
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino
| | | | - Fabio A Recchia
- Sector of Medicine, Scuola Superiore S. Anna, I-56124 Pisa, Italy; Department of Physiology, New York Medical College, Valhalla, New York 10595
| | - Gianandrea Pasquinelli
- Department of Hematology, Oncology, and Clinical Pathology, University of Bologna, I-40138 Bologna, Italy
| | - Carlo Ventura
- Laboratory of Molecular Biology and Stem Cell Engineering, Cardiovascular Department-National Institute of Biostructures and Biosystems, S. Orsola-Malpighi Hospital, University of Bologna, I-40138 Bologna, Italy; Bioscience Institute, RSM-47891 Falciano, Republic of San Marino.
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Abarbanell AM, Herrmann JL, Weil BR, Wang Y, Tan J, Moberly SP, Fiege JW, Meldrum DR. Animal models of myocardial and vascular injury. J Surg Res 2009; 162:239-49. [PMID: 20053409 DOI: 10.1016/j.jss.2009.06.021] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2009] [Revised: 06/06/2009] [Accepted: 06/16/2009] [Indexed: 01/09/2023]
Abstract
Over the past century, numerous animal models have been developed in an attempt to understand myocardial and vascular injury. However, the successful translation of results observed in animals to human therapy remains low. To understand this problem, we present several animal models of cardiac and vascular injury that are of particular relevance to the cardiac or vascular surgeon. We also explore the potential clinical implications and limitations of each model with respect to the human disease state. Our results underscore the concept that animal research requires an in-depth understanding of the model, animal physiology, and the potential confounding factors. Future outcome analyses with standardized animal models may improve translation of animal research from the bench to the bedside.
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Affiliation(s)
- Aaron M Abarbanell
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA
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Clayton JA, Chalothorn D, Faber JE. Vascular endothelial growth factor-A specifies formation of native collaterals and regulates collateral growth in ischemia. Circ Res 2008; 103:1027-36. [PMID: 18802023 DOI: 10.1161/circresaha.108.181115] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The density of native (preexisting) collaterals and their capacity to enlarge into large conduit arteries in ischemia (arteriogenesis) are major determinants of the severity of tissue injury in occlusive disease. Mechanisms directing arteriogenesis remain unclear. Moreover, nothing is known about how native collaterals form in healthy tissue. Evidence suggests vascular endothelial growth factor (VEGF), which is important in embryonic vascular patterning and ischemic angiogenesis, may contribute to native collateral formation and arteriogenesis. Therefore, we examined mice heterozygous for VEGF receptor-1 (VEGFR-1(+/-)), VEGF receptor-2 (VEGFR-2(+/-)), and overexpressing (VEGF(hi/+)) and underexpressing VEGF-A (VEGF(lo/+)). Recovery from hindlimb ischemia was followed for 21 days after femoral artery ligation. All statements below are P<0.05. Compared to wild-type mice, VEGFR-2(+/-) showed similar: ischemic scores, recovery of hindlimb perfusion, pericollateral leukocytes, collateral enlargement, and angiogenesis. In contrast, VEGFR-1(+/-) showed impaired: perfusion recovery, pericollateral leukocytes, collateral enlargement, worse ischemic scores, and comparable angiogenesis. Compared to wild-type mice, VEGF(lo/+) had 2-fold lower perfusion immediately after ligation (suggesting fewer native collaterals which was confirmed by angiography) and blunted recovery of perfusion. VEGF(hi/+) mice had 3-fold greater perfusion immediately after ligation, more native collaterals, and improved recovery of perfusion. These differences were confirmed in the cerebral pial cortical circulation where, compared to VEGF(hi/+) mice, VEGF(lo/+) formed fewer collaterals during the perinatal period when adult density was established, and had 2-fold larger infarctions after middle cerebral artery ligation. Our findings indicate VEGF and VEGFR-1 are determinants of arteriogenesis. Moreover, we describe the first signaling molecule, VEGF-A, that specifies formation of native collaterals in healthy tissues.
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Affiliation(s)
- Jason A Clayton
- Department of Cell and Molecular Physiology, University of North Carolina, Chapel Hill, NC 27599-7545, USA
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