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    780 results match your criteria Angiogenesis [Journal]

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    Mechanisms of angiogenesis in microbe-regulated inflammatory and neoplastic conditions.
    Angiogenesis 2017 Nov 6. Epub 2017 Nov 6.
    Department of Biomedical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA.
    Commensal microbiota inhabit all the mucosal surfaces of the human body. It plays significant roles during homeostatic conditions, and perturbations in numbers and/or products are associated with several pathological disorders. Angiogenesis, the process of new vessel formation, promotes embryonic development and critically modulates several biological processes during adulthood. Read More

    N-tert-butyloxycarbonyl-Phe-Leu-Phe-Leu-Phe (BOC2) inhibits the angiogenic activity of heparin-binding growth factors.
    Angiogenesis 2017 Oct 13. Epub 2017 Oct 13.
    Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
    The peptides N-tert-butyloxycarbonyl-Phe-Leu-Phe-Leu-Phe (BOC2) and BOC-Met-Leu-Phe (BOC1) are widely used antagonists of formyl peptide receptors (FPRs), BOC2 acting as an FPR1/FPR2 antagonist whereas BOC1 inhibits FPR1 only. Extensive investigations have been performed by using these FPR antagonists as a tool to assess the role of FPRs in physiological and pathological conditions. Based on previous observations from our laboratory, we assessed the possibility that BOC2 may exert also a direct inhibitory effect on the angiogenic activity of vascular endothelial growth factor-A (VEGF-A). Read More

    Notch signaling controls sprouting angiogenesis of endometriotic lesions.
    Angiogenesis 2017 Oct 9. Epub 2017 Oct 9.
    Institute for Clinical and Experimental Surgery, Saarland University, 66421, Homburg/Saar, Germany.
    Angiogenesis is essential for the engraftment and growth of endometriotic lesions. In this study, we analyzed whether this process is regulated by Notch signaling. Endometriotic lesions were induced by endometrial tissue transplantation into dorsal skinfold chambers of C57BL/6 mice, which were treated with the γ-secretase inhibitor DAPT or vehicle. Read More

    Antiangiogenesis and medical therapy failure in intracranial atherosclerosis.
    Angiogenesis 2017 Oct 9. Epub 2017 Oct 9.
    Department of Neurology, UCLA School of Medicine, Los Angeles, CA, USA.
    Intracranial atherosclerotic disease (ICAD) is one of the most common causes of stroke worldwide and the one with the worst prognosis. In this study, we assessed the hypothesis that the balance of circulating pro- and antiangiogenic factors plays a role in the evolution of the disease and can be used as a potential marker for the disease course and a target for treatment. Seventy-four patients with severe ICAD were enrolled in this prospective observational study, medically optimized, and followed for 6 months. Read More

    Pre-culture in endothelial growth medium enhances the angiogenic properties of adipose-derived stem/stromal cells.
    Angiogenesis 2017 Oct 7. Epub 2017 Oct 7.
    Department of Clinical Medicine, Ribeirão Preto Medical School, University of São Paulo, 3900 Bandeirantes Avenue, Ribeirão Preto, São Paulo, 14048-900, Brazil.
    Considerable progress has been made on the development of adipose-derived stem/stromal cells (ASCs) as pro-angiogenic therapeutic tools. However, variable clinical results highlight the need for devising strategies to enhance their therapeutic efficacy. Since ASCs proliferate and stabilize newly formed vessels during the angiogenic phase of adipose tissue formation, we hypothesized that mimicking an angiogenic milieu during culture of ASCs would enhance their capacity to support endothelial cell survival and angiogenesis. Read More

    Bone marrow sinusoidal endothelium: damage and potential regeneration following cancer radiotherapy or chemotherapy.
    Angiogenesis 2017 Nov 27;20(4):427-442. Epub 2017 Sep 27.
    Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
    It is very well known that bone marrow (BM) microvasculature may possess a crucial role in the maintenance of homeostasis of BM due to mutual interactions between BM microvascular system and other physiological functions including haematopoiesis and osteogenesis. Chemotherapy and radiotherapy are known as main approaches for cancer treatment and also are known as the main cause of damage to the BM microvascular system. However, despite the importance of BM microvasculature in orchestrating various biological functions, less attention has been drawn to address the underlying mechanisms for the damage and to explore cellular and molecular mechanisms by which the recovery/regeneration of chemotherapy- and/or radiotherapy-induced BM microvascular system damage can occur. Read More

    A genomic screen for angiosuppressor genes in the tumor endothelium identifies a multifaceted angiostatic role for bromodomain containing 7 (BRD7).
    Angiogenesis 2017 Nov 26;20(4):641-654. Epub 2017 Sep 26.
    Angiogenesis Laboratory, Department of Medical Oncology, Cancer Center Amsterdam, VU University Medical Center, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.
    Tumor angiogenesis is characterized by deregulated gene expression in endothelial cells (EC). While studies until now have mainly focused on overexpressed genes in tumor endothelium, we here describe the identification of transcripts that are repressed in tumor endothelium and thus have potential suppressive effects on angiogenesis. We identified nineteen putative angiosuppressor genes, one of them being bromodomain containing 7 (BRD7), a gene that has been assigned tumor suppressor properties. Read More

    3D endothelial cell spheroid/human vitreous humor assay for the characterization of anti-angiogenic inhibitors for the treatment of proliferative diabetic retinopathy.
    Angiogenesis 2017 Nov 13;20(4):629-640. Epub 2017 Sep 13.
    Department of Molecular and Translational Medicine, University of Brescia, viale Europa 11, 25123, Brescia, Italy.
    Proliferative diabetic retinopathy (PDR) represents a main cause of acquired blindness. Despite the recognition of the key role exerted by vascular endothelial growth factor (VEGF) in the pathogenesis of PDR, limitations to anti-VEGF therapies do exist. Thus, rapid and cost-effective angiogenesis assays are crucial for the screening of anti-angiogenic drug candidates for PDR therapy. Read More

    Tumor vessel disintegration by maximum tolerable PFKFB3 blockade.
    Angiogenesis 2017 Nov 5;20(4):599-613. Epub 2017 Sep 5.
    Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, 3000, Leuven, Belgium.
    Blockade of the glycolytic activator PFKFB3 in cancer cells (using a maximum tolerable dose of 70 mg/kg of the PFKFB3 blocker 3PO) inhibits tumor growth in preclinical models and is currently being tested as a novel anticancer treatment in phase I clinical trials. However, a detailed preclinical analysis of the effects of such maximum tolerable dose of a PFKFB3 blocker on the tumor vasculature is lacking, even though tumor endothelial cells are hyper-glycolytic. We report here that a high dose of 3PO (70 mg/kg), which inhibits cancer cell proliferation and reduces primary tumor growth, causes tumor vessel disintegration, suppresses endothelial cell growth for protracted periods, (model-dependently) aggravates tumor hypoxia, and compromises vascular barrier integrity, thereby rendering tumor vessels more leaky and facilitating cancer cell intravasation and dissemination. Read More

    Endothelial progenitor cells in multiple myeloma neovascularization: a brick to the wall.
    Angiogenesis 2017 Nov 24;20(4):443-462. Epub 2017 Aug 24.
    Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
    Multiple myeloma (MM) is characterized by the clonal expansion of plasma cells in the bone marrow that leads to events such as bone destruction, anaemia and renal failure. Despite the several therapeutic options available, there is still no effective cure, and the standard survival is up to 4 years. The evolution from the asymptomatic stage of monoclonal gammopathy of undetermined significance to MM and the progression of the disease itself are related to cellular and molecular alterations in the bone marrow microenvironment, including the development of the vasculature. Read More

    Frizzled-5: a high affinity receptor for secreted frizzled-related protein-2 activation of nuclear factor of activated T-cells c3 signaling to promote angiogenesis.
    Angiogenesis 2017 Nov 24;20(4):615-628. Epub 2017 Aug 24.
    Department of Surgery, Medical University of South Carolina, Charleston, SC, 29425, USA.
    Secreted frizzled-related protein 2 (SFRP2) is a pro-angiogenic factor expressed in the vasculature of a wide variety of human tumors, and modulates angiogenesis via the calcineurin-dependent nuclear factor of activated T-cells cytoplasmic 3 (NFATc3) pathway in endothelial cells. However, until now, SFRP2 receptor for this pathway was unknown. In the present study, we first used amino acid alignments and molecular modeling to demonstrate that SFRP2 interaction with frizzled-5 (FZD5) is typical of Wnt/FZD family members. Read More

    Prox1-GFP/Flt1-DsRed transgenic mice: an animal model for simultaneous live imaging of angiogenesis and lymphangiogenesis.
    Angiogenesis 2017 Nov 9;20(4):581-598. Epub 2017 Aug 9.
    Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA.
    The roles of angiogenesis in development, health, and disease have been studied extensively; however, the studies related to lymphatic system are limited due to the difficulty in observing colorless lymphatic vessels. But recently, with the improved technique, the relative importance of the lymphatic system is just being revealed. We bred transgenic mice in which lymphatic endothelial cells express GFP (Prox1-GFP) with mice in which vascular endothelial cells express DsRed (Flt1-DsRed) to generate Prox1-GFP/Flt1-DsRed (PGFD) mice. Read More

    PDGFRβ-P2A-CreER(T2) mice: a genetic tool to target pericytes in angiogenesis.
    Angiogenesis 2017 Nov 27;20(4):655-662. Epub 2017 Jul 27.
    Department of Pathology and Cell Biology, Columbia University Medical Center, 1130 St. Nicholas Avenue, ICRC604, New York, NY, 10032, USA.
    Pericytes are essential mural cells distinguished by their association with small caliber blood vessels and the presence of a basement membrane shared with endothelial cells. Pericyte interaction with the endothelium plays an important role in angiogenesis; however, very few tools are currently available that allow for the targeting of pericytes in mouse models, limiting our ability to understand their biology. We have generated a novel mouse line expressing tamoxifen-inducible Cre-recombinase under the control of the platelet-derived growth factor receptor β promoter: PDGFRβ-P2A-CreER (T2) . Read More

    Microvascular ultrastructural changes precede cognitive impairment in the murine APPswe/PS1dE9 model of Alzheimer's disease.
    Angiogenesis 2017 Nov 25;20(4):567-580. Epub 2017 Jul 25.
    School of Biomedical Sciences, University of Ulster, Coleraine, Northern Ireland, UK.
    Cerebral and systemic organ microvascular pathologies coexist with human Alzheimer's disease (AD) neuropathology. In this study, we hypothesised that both cerebral and systemic microvascular pathologies exist in 4- to 5-month-old male APPswe/PS1dE9 (APP/PS1) transgenic mice prior to the onset of cognitive impairment. To assess this we examined recognition memory in both wild-type and APP/PS1 mice using the object recognition task (ORT; n = 11 per group) and counted thioflavin-S-positive plaques in brain (n = 6 per group). Read More

    A new key player in VEGF-dependent angiogenesis in human hepatocellular carcinoma: dimethylarginine dimethylaminohydrolase 1.
    Angiogenesis 2017 Nov 24;20(4):557-565. Epub 2017 Jul 24.
    Department of Surgery, VU University Medical Center, PO Box 7057, 1007 MB, Amsterdam, The Netherlands.
    Background: Anti-angiogenic therapies, targeting VEGF, are a promising treatment for hepatocellular carcinoma (HCC). To enhance this potential therapy, identification of novel targets in this pathway is of major interest. Nitric oxide (NO) plays a crucial role in VEGF-dependent angiogenesis. Read More

    History and conceptual developments in vascular biology and angiogenesis research: a personal view.
    Angiogenesis 2017 Nov 24;20(4):463-478. Epub 2017 Jul 24.
    INSERM U1029 (Angiogenesis and Tumor Microenvironment Laboratory), Allée Geoffroy St Hilaire, 33560, Pessac, France.
    Vascular biology is an important scientific domain that has gradually penetrated many medical and scientific fields. Scientists are most often focused on present problems in their daily scientific work and lack awareness regarding the evolution of their domain throughout history and of how philosophical issues are related to their research field. In this article, I provide a personal view with an attempt to conceptualize vascular development research that articulates lessons taken from history, philosophy, biology and medicine. Read More

    Early prediction of tumor response to bevacizumab treatment in murine colon cancer models using three-dimensional dynamic contrast-enhanced ultrasound imaging.
    Angiogenesis 2017 Nov 18;20(4):547-555. Epub 2017 Jul 18.
    Department of Radiology, Molecular Imaging Program at Stanford, School of Medicine, Stanford University, 300 Pasteur Drive, Room H1307, Stanford, CA, 94305-5621, USA.
    Due to spatial tumor heterogeneity and consecutive sampling errors, it is critically important to assess treatment response following antiangiogenic therapy in three dimensions as two-dimensional assessment has been shown to substantially over- and underestimate treatment response. In this study, we evaluated whether three-dimensional (3D) dynamic contrast-enhanced ultrasound (DCE-US) imaging allows assessing early changes in tumor perfusion following antiangiogenic treatment (bevacizumab administered at a dose of 10 mg/kg b.w. Read More

    Optical clearing and fluorescence deep-tissue imaging for 3D quantitative analysis of the brain tumor microenvironment.
    Angiogenesis 2017 Nov 11;20(4):533-546. Epub 2017 Jul 11.
    Neuro-oncology Research Group, VU University Medical Center, CCA Room 3.60, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.
    Background: Three-dimensional visualization of the brain vasculature and its interactions with surrounding cells may shed light on diseases where aberrant microvascular organization is involved, including glioblastoma (GBM). Intravital confocal imaging allows 3D visualization of microvascular structures and migration of cells in the brain of mice, however, with limited imaging depth. To enable comprehensive analysis of GBM and the brain microenvironment, in-depth 3D imaging methods are needed. Read More

    Endothelium-derived fibronectin regulates neonatal vascular morphogenesis in an autocrine fashion.
    Angiogenesis 2017 Nov 30;20(4):519-531. Epub 2017 Jun 30.
    Howard Hughes Medical Institute, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 77 Massachusetts Ave, 76-361, Cambridge, MA, 02139, USA.
    Fibronectin containing alternatively spliced EIIIA and EIIIB domains is largely absent from mature quiescent vessels in adults, but is highly expressed around blood vessels during developmental and pathological angiogenesis. The precise functions of fibronectin and its splice variants during developmental angiogenesis however remain unclear due to the presence of cardiac, somitic, mesodermal and neural defects in existing global fibronectin KO mouse models. Using a rare family of surviving EIIIA EIIIB double KO mice, as well as inducible endothelial-specific fibronectin-deficient mutant mice, we show that vascular development in the neonatal retina is regulated in an autocrine manner by endothelium-derived fibronectin, and requires both EIIIA and EIIIB domains and the RGD-binding α5 and αv integrins for its function. Read More

    Tumor angiogenesis and vascular normalization: alternative therapeutic targets.
    Angiogenesis 2017 Nov 28;20(4):409-426. Epub 2017 Jun 28.
    Hôpital Maisonneuve-Rosement Research Centre, 5415 Boulevard de l'Assomption, Montreal, QC, Canada.
    Tumor blood vessels are a key target for cancer therapeutic management. Tumor cells secrete high levels of pro-angiogenic factors which contribute to the creation of an abnormal vascular network characterized by disorganized, immature and permeable blood vessels, resulting in poorly perfused tumors. The hypoxic microenvironment created by impaired tumor perfusion can promote the selection of more invasive and aggressive tumor cells and can also impede the tumor-killing action of immune cells. Read More

    Pharmacological intervention of MKL/SRF signaling by CCG-1423 impedes endothelial cell migration and angiogenesis.
    Angiogenesis 2017 Nov 21;20(4):663-672. Epub 2017 Jun 21.
    Department of Bioengineering, University of Pittsburgh, 306 CNBIO, 300 Technology Drive, Pittsburgh, PA, 15219, USA.
    De novo synthesis of cytoskeleton-regulatory proteins triggered by the megakaryoblastic leukemia (MKL)/serum response factor (SRF) transcriptional system in response to pro-angiogenic growth factors lies at the heart of endothelial cell (EC) migration (a critical element of angiogenesis) and neovascularization. This study explores whether pharmacological intervention of MKL/SRF signaling axis by CCG-1423 is able to suppress angiogenesis. Our studies show that CCG-1423 inhibits migration and cord morphogenesis of EC in vitro and sprouting angiogenesis ex vivo and in vivo, suggesting CCG-1423 could be a novel anti-angiogenic agent. Read More

    CXCL10 suppression of hem- and lymph-angiogenesis in inflamed corneas through MMP13.
    Angiogenesis 2017 Nov 16;20(4):505-518. Epub 2017 Jun 16.
    Department of Ophthalmology/Kresge Eye Institute, Wayne State University School of Medicine, 4717 St. Antoine Blvd, Detroit, MI, 48201, USA.
    Though not present in the normal adult cornea, both hem- and lymph-angiogenesis can be induced in this tissue after an inflammatory, infectious, or traumatic insult. We previously showed that the chemokine CXCL10 plays a key role in eradicating invading Candida (C.) albicans in C57BL6 mouse corneas. Read More

    Low levels of physiological interstitial flow eliminate morphogen gradients and guide angiogenesis.
    Angiogenesis 2017 Nov 12;20(4):493-504. Epub 2017 Jun 12.
    Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
    Convective transport can significantly distort spatial concentration gradients. Interstitial flow is ubiquitous throughout living tissue, but our understanding of how interstitial flow affects concentration gradients in biological processes is limited. Interstitial flow is of particular interest for angiogenesis because pathological and physiological angiogenesis is associated with altered interstitial flow, and both interstitial flow and morphogen gradients (e. Read More

    miRNAs: micro-managers of anticancer combination therapies.
    Angiogenesis 2017 May 4;20(2):269-285. Epub 2017 May 4.
    Angiogenesis Laboratory, Department of Medical Oncology, VUMC - Cancer Center Amsterdam, VU University Medical Center (VUmc), Amsterdam, The Netherlands.
    Angiogenesis is one of the hallmarks of cancer progression and as such has been considered a target of therapeutic interest. However, single targeted agents have not fully lived up to the initial promise of anti-angiogenic therapy. Therefore, it has been suggested that combining therapies and agents will be the way forward in the oncology field. Read More

    Pathogenic role and therapeutic potential of pleiotrophin in mouse models of ocular vascular disease.
    Angiogenesis 2017 Nov 26;20(4):479-492. Epub 2017 Apr 26.
    Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami School of Medicine, Miami, FL, USA.
    Angiogenic factors play an important role in the pathogenesis of diabetic retinopathy (DR), neovascular age-related macular degeneration (nAMD) and retinopathy of prematurity (ROP). Pleiotrophin, a well-known angiogenic factor, was recently reported to be upregulated in the vitreous fluid of patients with proliferative DR (PDR). However, its pathogenic role and therapeutic potential in ocular vascular diseases have not been defined in vivo. Read More

    Antiangiogenic therapy combined with immune checkpoint blockade in renal cancer.
    Angiogenesis 2017 May 11;20(2):205-215. Epub 2017 Apr 11.
    Department of Urology, The Netherlands Cancer Institute, Postbus 90203, 1006 BE, Amsterdam, The Netherlands.
    Antiangiogenic therapy with vascular endothelial growth factor (VEGF) inhibitors is the current first-line treatment in metastatic renal cell carcinoma (mRCC). Immunotherapy with checkpoint inhibitor has been recently added to the armamentarium of mRCC treatment. These therapies are based on treatment with antibodies that block programmed cell death-1 (PD-1), programmed cell death ligand 1 (PD-L1) pathways, demonstrating impressive response rates and improved survival in several tumour types. Read More

    A novel strategy to enhance angiogenesis in vivo using the small VEGF-binding peptide PR1P.
    Angiogenesis 2017 Aug 10;20(3):399-408. Epub 2017 Apr 10.
    Vascular Biology Program, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
    Therapeutic angiogenesis is an experimental frontier in vascular biology that seeks to deliver angiogenic growth factors to ischemic or injured tissues to promote targeted formation of new blood vessels as an alternative approach to surgical revascularization procedures. Vascular endothelial growth factor (VEGF) is a potent angiogenic signal protein that is locally upregulated at sites of tissue injury. However, therapies aimed at increasing VEGF levels experimentally by injecting VEGF gene or protein failed to improve outcomes in human trials in part due to its short half-life and systemic toxicity. Read More

    Pro-angiogenic capacities of microvesicles produced by skin wound myofibroblasts.
    Angiogenesis 2017 Aug 8;20(3):385-398. Epub 2017 Apr 8.
    Centre de recherche en organogenese experimentale de l'Université Laval/LOEX, Centre de recherche du CHU de Quebec and Surgery Department, Faculty of Medicine, Universite Laval, 1401, 18e rue, Quebec City, QC, G1J 1Z4, Canada.
    Wound healing is a very highly organized process where numerous cell types are tightly regulated to restore injured tissue. Myofibroblasts are cells that produce new extracellular matrix and contract wound edges. We previously reported that the human myofibroblasts isolated from normal wound (WMyos) produced microvesicles (MVs) in the presence of the serum. Read More

    Contribution of tumor endothelial cells to drug resistance: anti-angiogenic tyrosine kinase inhibitors act as p-glycoprotein antagonists.
    Angiogenesis 2017 May 7;20(2):233-241. Epub 2017 Apr 7.
    Laboratory of Biology and Treatment of Metastasis, IRCCS-Mario Negri Institute for Pharmacological Research, via G. La Masa 19, 20156, Milan, Italy.
    Tumor endothelial cells (TEC) differ from the normal counterpart, in both gene expression and functionality. TEC may acquire drug resistance, a characteristic that is maintained in vitro. There is evidence that TEC are more resistant to chemotherapeutic drugs, substrates of ATP-binding cassette (ABC) transporters. Read More

    Epigenetic approach for angiostatic therapy: promising combinations for cancer treatment.
    Angiogenesis 2017 May 4;20(2):245-267. Epub 2017 Apr 4.
    School of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, 1211, Geneva, Switzerland.
    Cancer cells are often dependent on epigenetic pathways for their survival. Consequently, drugs that target the epigenome, rather than the underlying DNA sequence, are currently attracting considerable attention. In recent years, the first epigenetic drugs have been approved for cancer chemotherapy, mainly for hematological applications. Read More

    Blood flow can signal during angiogenesis not only through mechanotransduction, but also by affecting growth factor distribution.
    Angiogenesis 2017 Aug 3;20(3):373-384. Epub 2017 Apr 3.
    Department of Chemical Engineering, McGill University, 3610 University St., Montreal, QC, H3A 0C5, Canada.
    Growth factors, such as VEGF, promote the sprouting of new blood vessels. Growth factors are generally produced far from the endothelium, and the transport of these proteins is often assumed to occur through diffusion. When sprouting occurs in a perfused vascular bed, however, interstitial flow is present that can modify protein transport. Read More

    The clinical application of angiostatic therapy in combination with radiotherapy: past, present, future.
    Angiogenesis 2017 May 31;20(2):217-232. Epub 2017 Mar 31.
    Department of Radiation Oncology, VU University Medical Centre, De Boelelaan 1118, 1081 HV, Amsterdam, The Netherlands.
    Although monotherapy with angiostatic drugs is still far from effective, there is abundant evidence that angiostatic therapy can improve the efficacy of conventional treatments like radiotherapy. This has instigated numerous efforts to optimize and clinically implement the combination of angiostatic drugs with radiation treatment. The results from past and present clinical trials that explored this combination therapy indeed show encouraging results. Read More

    Anti-angiogenesis for cancer revisited: Is there a role for combinations with immunotherapy?
    Angiogenesis 2017 May 30;20(2):185-204. Epub 2017 Mar 30.
    E. L. Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom St, Cox-734, Boston, MA, 02114, USA.
    Angiogenesis is defined as the formation of new blood vessels from preexisting vessels and has been characterized as an essential process for tumor cell proliferation and viability. This has led to the development of pharmacological agents for anti-angiogenesis to disrupt the vascular supply and starve tumor of nutrients and oxygen, primarily through blockade of VEGF/VEGFR signaling. This effort has resulted in 11 anti-VEGF drugs approved for certain advanced cancers, alone or in combination with chemotherapy or other targeted therapies. Read More

    Effects of nintedanib on the microvascular architecture in a lung fibrosis model.
    Angiogenesis 2017 Aug 10;20(3):359-372. Epub 2017 Mar 10.
    Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg University Mainz, Johann-Joachim-Becher-Weg 13, 55128, Mainz, Germany.
    Nintedanib, a tyrosine kinase inhibitor approved for the treatment of idiopathic pulmonary fibrosis, has anti-fibrotic, anti-inflammatory, and anti-angiogenic activity. We explored the impact of nintedanib on microvascular architecture in a pulmonary fibrosis model. Lung fibrosis was induced in C57Bl/6 mice by intratracheal bleomycin (0. Read More

    RCAN1.4 regulates VEGFR-2 internalisation, cell polarity and migration in human microvascular endothelial cells.
    Angiogenesis 2017 Aug 7;20(3):341-358. Epub 2017 Mar 7.
    MRC Centre for Drug Safety Science, Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Liverpool, L69 3GE, UK.
    Regulator of calcineurin 1 (RCAN1) is an endogenous inhibitor of the calcineurin pathway in cells. It is expressed as two isoforms in vertebrates: RCAN1.1 is constitutively expressed in most tissues, whereas transcription of RCAN1. Read More

    MCPIP1 contributes to clear cell renal cell carcinomas development.
    Angiogenesis 2017 Aug 14;20(3):325-340. Epub 2017 Feb 14.
    Department of General Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 7 Gronostajowa St, 30-387, Krakow, Poland.
    Monocyte Chemoattractant protein-induced protein 1 (MCPIP1), also known as Regnase-1, is encoded by the ZC3H12a gene, and it mediates inflammatory processes by regulating the stability of transcripts coding for proinflammatory cytokines and controlling activity of transcription factors, such as NF-κB and AP1. We found that MCPIP1 transcript and protein levels are strongly downregulated in clear cell renal cell carcinoma (ccRCC) samples, which were derived from patients surgically treated for renal cancer compared to surrounded normal tissues. Using Caki-1 cells as a model, we analyzed the role of MCPIP1 in cancer development. Read More

    The role of vasculature in bone development, regeneration and proper systemic functioning.
    Angiogenesis 2017 Aug 13;20(3):291-302. Epub 2017 Feb 13.
    Department of Orthopedics and Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 19e Kopernika St., 31-501, Kraków, Poland.
    Bone is a richly vascularized connective tissue. As the main source of oxygen, nutrients, hormones, neurotransmitters and growth factors delivered to the bone cells, vasculature is indispensable for appropriate bone development, regeneration and remodeling. Bone vasculature also orchestrates the process of hematopoiesis. Read More

    A somatic GNA11 mutation is associated with extremity capillary malformation and overgrowth.
    Angiogenesis 2017 Aug 24;20(3):303-306. Epub 2017 Jan 24.
    Department of Plastic and Oral Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
    Background: Capillary malformation is a cutaneous vascular anomaly that is present at birth, darkens over time, and can cause overgrowth of tissues beneath the stain. The lesion is caused by a somatic activating mutation in GNAQ. In a previous study, we were unable to identify a GNAQ mutation in patients with a capillary malformation involving an overgrown lower extremity. Read More

    ETS transcription factors Etv2 and Fli1b are required for tumor angiogenesis.
    Angiogenesis 2017 Aug 20;20(3):307-323. Epub 2017 Jan 20.
    Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA.
    ETS transcription factor ETV2/Etsrp functions as a key regulator of embryonic vascular development in multiple vertebrates. However, its role in pathological vascular development has not been previously investigated. To analyze its role in tumor angiogenesis, we utilized a zebrafish xenotransplantation model. Read More

    Angiopoietins as serum biomarkers for lymphatic anomalies.
    Angiogenesis 2017 Feb 18;20(1):163-173. Epub 2016 Dec 18.
    Division of Hematology/Oncology, Vascular Anomalies Center, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA.
    Vascular anomalies can cause significant morbidity and mortality. Advances in diagnosis will be improved if noninvasive biomarkers can be identified, as obtaining a tissue biopsy can worsen the disease and precipitate complications. The goal of this study was to identify biomarkers for vascular anomaly patients to aid diagnosis and potentially give insights into pathogenesis. Read More

    The role of endoglin in post-ischemic revascularization.
    Angiogenesis 2017 Feb 9;20(1):1-24. Epub 2016 Dec 9.
    Renal and Cardiovascular Research Unit, Department of Physiology and Pharmacology, University of Salamanca, Salamanca, Spain.
    Following arterial occlusion, blood vessels respond by forming a new network of functional capillaries (angiogenesis), by reorganizing preexisting capillaries through the recruitment of smooth muscle cells to generate new arteries (arteriogenesis) and by growing and remodeling preexisting collateral arterioles into physiologically relevant arteries (collateral development). All these processes result in the recovery of organ perfusion. The importance of endoglin in post-occlusion reperfusion is sustained by several observations: (1) endoglin expression is increased in vessels showing active angiogenesis/remodeling; (2) genetic endoglin haploinsufficiency in humans causes deficient angiogenesis; and (3) the reduction of endoglin expression by gene disruption or the administration of endoglin-neutralizing antibodies reduces angiogenesis and revascularization. Read More

    A new algorithm for a better characterization and timing of the anti-VEGF vascular effect named "normalization".
    Angiogenesis 2017 Feb 10;20(1):149-162. Epub 2016 Dec 10.
    CRAN, UMR 7039, Université de Lorraine, Vandoeuvre-lès-Nancy, France.
    Antiangiogenics are widely used in cancer treatment in combination with chemotherapy and radiotherapy for their vascular effects. Antiangiogenics are supposed to induce morphological and functional changes in the chaotic tumor vasculature that would help enhance the therapeutic efficacy of chemotherapy and radiotherapy through the amelioration of the drug delivery or the oxygenation in the tumor, respectively. However, finding the best treatment sequence is not an easy task to achieve and no consensus has yet been established because of the lack of knowledge regarding when and for how long the vascular network is ameliorated. Read More

    An extracellular proteasome releases endostatin from human collagen XVIII.
    Angiogenesis 2017 Feb 5;20(1):125-137. Epub 2016 Dec 5.
    Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
    Endostatin is a potent anti-angiogenic and anti-tumor protein capable of regressing tumors without inducing acquired resistance. Since it is a fragment of the parental molecule, collagen XVIII, its endogenous production depends on the activity of a specific proteolytic enzyme. While such an enzyme has been described in mice, a human counterpart has not been identified so far. Read More

    An exploratory association of polymorphisms in angiogenesis-related genes with susceptibility, clinical response and toxicity in gastrointestinal stromal tumors receiving sunitinib after imatinib failure.
    Angiogenesis 2017 Feb 28;20(1):139-148. Epub 2016 Nov 28.
    Department of Pharmacy and Biotechnology, University of Bologna, Via Irnerio 48, 40126, Bologna, Italy.
    The angiogenic pathway plays a pivotal role in tumor growth, invasiveness and metastasis. The most important actors in the angiogenic pathway are VEGFA and its receptors VEGFR1, 2 and 3. These genes are polymorphic, and the presence of single nucleotide polymorphisms may result in angiogenic deregulation. Read More

    Differential regulation of angiogenic cellular processes and claudin-5 by histamine and VEGF via PI3K-signaling, transcription factor SNAI2 and interleukin-8.
    Angiogenesis 2017 Feb 21;20(1):109-124. Epub 2016 Nov 21.
    Department of Biotechnology and Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland.
    Aims: Histamine and vascular endothelial growth factor A (VEGF) are central regulators in vascular pathologies. Their gene regulation leading to vascular remodeling has remained obscure. In this study, EC regulation mechanisms of histamine and VEGF were compared by RNA sequencing of primary endothelial cells (ECs), functional in vitro assays and in vivo permeability mice model. Read More

    Enhanced peripheral dopamine impairs post-ischemic healing by suppressing angiotensin receptor type 1 expression in endothelial cells and inhibiting angiogenesis.
    Angiogenesis 2017 Feb 16;20(1):97-107. Epub 2016 Nov 16.
    Department of Pathology, Wexner Medical Center, The Ohio State University, Columbus, OH, 43210, USA.
    Increased circulating catecholamines have been linked with cardiovascular anomalies as well as with peripheral vascular diseases. Although the roles of epinephrine and norepinephrine have received considerable attention, the role of the other catecholamine, dopamine, has been less studied. Since dopamine is a potent endogenous inhibitor of angiogenesis and as angiogenesis is essential for ischemic healing, we therefore studied the role played by dopamine during ischemic healing using dopamine D2 receptor knockout (KOD2) mice. Read More

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