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Masood F, Bhattaram R, Rosenblatt MI, Kazlauskas A, Chang JH, Azar DT. Lymphatic Vessel Regression and Its Therapeutic Applications: Learning From Principles of Blood Vessel Regression. Front Physiol 2022; 13:846936. [PMID: 35392370 PMCID: PMC8980686 DOI: 10.3389/fphys.2022.846936] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 02/25/2022] [Indexed: 02/03/2023] Open
Abstract
Aberrant lymphatic system function has been increasingly implicated in pathologies such as lymphedema, organ transplant rejection, cardiovascular disease, obesity, and neurodegenerative diseases including Alzheimer's disease and Parkinson's disease. While some pathologies are exacerbated by lymphatic vessel regression and dysfunction, induced lymphatic regression could be therapeutically beneficial in others. Despite its importance, our understanding of lymphatic vessel regression is far behind that of blood vessel regression. Herein, we review the current understanding of blood vessel regression to identify several hallmarks of this phenomenon that can be extended to further our understanding of lymphatic vessel regression. We also summarize current research on lymphatic vessel regression and an array of research tools and models that can be utilized to advance this field. Additionally, we discuss the roles of lymphatic vessel regression and dysfunction in select pathologies, highlighting how an improved understanding of lymphatic vessel regression may yield therapeutic insights for these disease states.
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Testini C. SH2-Domain Protein Isolation Using Synthetic Phosphorylated Peptides to Study VEGFR2 Signaling. Methods Mol Biol 2022; 2475:97-111. [PMID: 35451751 DOI: 10.1007/978-1-0716-2217-9_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Vascular endothelial growth factor (VEGF)/VEGF receptor 2 (VEGFR2) signaling pathways are tightly regulated multistep chain reactions that involve a wide range of molecular interactions and enzymatic activities. The first signal induced by VEGF binding to VEGFR2, is the activation of the receptor tyrosine kinase and autophosphorylation of intracellular tyrosine residues of the receptor. In endothelial cells, five tyrosine residues in the VEGFR2 intracellular domain are essential in signal transmission and in the respective regulation of cellular processes. Because of their number and their localization on the receptor, it is challenging to locate the proteins with which these tyrosine residues interact that result in further downstream signaling cascades. In this chapter, we describe a method to precipitate phosphotyrosine binding proteins using phosphotyrosine-containing synthetic peptides immobilized to magnetic beads. The identity of the precipitated proteins is determined by mass spectrometry and the findings validated by Western blot. Using this method, we identified and verified two proteins, growth factor receptor binding-2 (GRB2) and phosphoinositide 3'-kinase (PI3Kp85), binding to the tyrosine 1214 of VEGFR2. Thereby, we can predict the signaling pathways downstream of pY1214.
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Affiliation(s)
- Chiara Testini
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden.
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3
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Normalizing Tumor Vasculature to Reduce Hypoxia, Enhance Perfusion, and Optimize Therapy Uptake. Cancers (Basel) 2021; 13:cancers13174444. [PMID: 34503254 PMCID: PMC8431369 DOI: 10.3390/cancers13174444] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 08/26/2021] [Accepted: 09/01/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary In order for solid tumors to grow, they need to develop new blood vessels in order to support their increasing metabolic requirements. To facilitate the novel vessel formation, the tumor initiates an aggressive pro-angiogenic program. As a result of the aggressive angiogenesis, blood vessels form very rapidly and are often malformed and dysfunctional. There is a reduction in perfusion to the tumor, and often the tumors exhibit significant areas of tumor hypoxia. This review paper discusses the pro-tumorigenic environment induced by tumor hypoxia and how this can be targeted through normalization of the tumor vasculature. Here, we review tumor angiogenesis, the development of a hypoxic phenotype, and how this contributes to sustained tumorigenesis and resistance to therapy. We further discuss the potential of vascular normalization to reduce tumor hypoxia and facilitate uptake and efficacy of a variety of therapies. Abstract A basic requirement of tumorigenesis is the development of a vascular network to support the metabolic requirements of tumor growth and metastasis. Tumor vascular formation is regulated by a balance between promoters and inhibitors of angiogenesis. Typically, the pro-angiogenic environment created by the tumor is extremely aggressive, resulting in the rapid vessel formation with abnormal, dysfunctional morphology. The altered morphology and function of tumor blood and lymphatic vessels has numerous implications including poor perfusion, tissue hypoxia, and reduced therapy uptake. Targeting tumor angiogenesis as a therapeutic approach has been pursued in a host of different cancers. Although some preclinical success was seen, there has been a general lack of clinical success with traditional anti-angiogenic therapeutics as single agents. Typically, following anti-angiogenic therapy, there is remodeling of the tumor microenvironment and widespread tumor hypoxia, which is associated with development of therapy resistance. A more comprehensive understanding of the biology of tumor angiogenesis and insights into new clinical approaches, including combinations with immunotherapy, are needed to advance vascular targeting as a therapeutic area.
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Balberova OV, Bykov EV, Shnayder NA, Petrova MM, Gavrilyuk OA, Kaskaeva DS, Soloveva IA, Petrov KV, Mozheyko EY, Medvedev GV, Nasyrova RF. The "Angiogenic Switch" and Functional Resources in Cyclic Sports Athletes. Int J Mol Sci 2021; 22:ijms22126496. [PMID: 34204341 PMCID: PMC8234968 DOI: 10.3390/ijms22126496] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/08/2021] [Accepted: 06/10/2021] [Indexed: 12/22/2022] Open
Abstract
Regular physical activity in cyclic sports can influence the so-called “angiogenic switch”, which is considered as an imbalance between proangiogenic and anti-angiogenic molecules. Disruption of the synthesis of angiogenic molecules can be caused by local changes in tissues under the influence of excessive physical exertion and its consequences, such as chronic oxidative stress and associated hypoxia, metabolic acidosis, sports injuries, etc. A review of publications on signaling pathways that activate and inhibit angiogenesis in skeletal muscles, myocardium, lung, and nervous tissue under the influence of intense physical activity in cyclic sports. Materials: We searched PubMed, SCOPUS, Web of Science, Google Scholar, Clinical keys, and e-LIBRARY databases for full-text articles published from 2000 to 2020, using keywords and their combinations. Results: An important aspect of adaptation to training loads in cyclic sports is an increase in the number of capillaries in muscle fibers, which improves the metabolism of skeletal muscles and myocardium, as well as nervous and lung tissue. Recent studies have shown that myocardial endothelial cells not only respond to hemodynamic forces and paracrine signals from neighboring cells, but also take an active part in heart remodeling processes, stimulating the growth and contractility of cardiomyocytes or the production of extracellular matrix proteins in myofibroblasts. As myocardial vascularization plays a central role in the transition from adaptive heart hypertrophy to heart failure, further study of the signaling mechanisms involved in the regulation of angiogenesis in the myocardium is important in sports practice. The study of the “angiogenic switch” problem in the cerebrovascular and cardiovascular systems allows us to claim that the formation of new vessels is mediated by a complex interaction of all growth factors. Although the lungs are one of the limiting systems of the body in cyclic sports, their response to high-intensity loads and other environmental stresses is often overlooked. Airway epithelial cells are the predominant source of several growth factors throughout lung organogenesis and appear to be critical for normal alveolarization, rapid alveolar proliferation, and normal vascular development. There are many controversial questions about the role of growth factors in the physiology and pathology of the lungs. The presented review has demonstrated that when doing sports, it is necessary to give a careful consideration to the possible positive and negative effects of growth factors on muscles, myocardium, lung tissue, and brain. Primarily, the “angiogenic switch” is important in aerobic sports (long distance running). Conclusions: Angiogenesis is a physiological process of the formation of new blood capillaries, which play an important role in the functioning of skeletal muscles, myocardium, lung, and nervous tissue in athletes. Violation of the “angiogenic switch” as a balance between proangiogenic and anti-angiogenic molecules can lead to a decrease in the functional resources of the nervous, musculoskeletal, cardiovascular, and respiratory systems in athletes and, as a consequence, to a decrease in sports performance.
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Affiliation(s)
- Olga V. Balberova
- Research Institute of Olympic Sports, Ural State University of Physical Culture, 454091 Chelyabinsk, Russia;
- Correspondence: (O.V.B.); (N.A.S.); (R.F.N.)
| | - Evgeny V. Bykov
- Research Institute of Olympic Sports, Ural State University of Physical Culture, 454091 Chelyabinsk, Russia;
| | - Natalia A. Shnayder
- V.M. Bekhterev National Medical Research Center for Neurology and Psychiatry, Department of Personalized Psychiatry and Neurology, 192019 Saint Petersburg, Russia
- Department of Outpatient Therapy and Family Medicine with a Postgraduate Course, Shared Core Facilities Molecular and Cell Technologies, Professor V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia; (M.M.P.); (D.S.K.)
- Correspondence: (O.V.B.); (N.A.S.); (R.F.N.)
| | - Marina M. Petrova
- Department of Outpatient Therapy and Family Medicine with a Postgraduate Course, Shared Core Facilities Molecular and Cell Technologies, Professor V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia; (M.M.P.); (D.S.K.)
| | - Oksana A. Gavrilyuk
- The Department of Polyclinic Therapy and Family Medicine and Healthy Lifesttyle with a Course of PE, V. F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia;
| | - Daria S. Kaskaeva
- Department of Outpatient Therapy and Family Medicine with a Postgraduate Course, Shared Core Facilities Molecular and Cell Technologies, Professor V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia; (M.M.P.); (D.S.K.)
| | - Irina A. Soloveva
- Department of Hospital Therapy and Immunology with a Postgraduate Course, Shared Core Facilities Molecular and Cell Technologies, Professor V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia;
| | - Kirill V. Petrov
- Department of Physical and Rehabilitation Medicine with a Postgraduate Course, Shared Core Facilities Molecular and Cell Technologies, Professor V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia; (K.V.P.); (E.Y.M.)
| | - Elena Y. Mozheyko
- Department of Physical and Rehabilitation Medicine with a Postgraduate Course, Shared Core Facilities Molecular and Cell Technologies, Professor V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia; (K.V.P.); (E.Y.M.)
| | - German V. Medvedev
- R. R. Vreden National Medical Research Center for Traumatology and Orthopedics, Department of Hand Surgery with Microsurgical Equipment, 195427 Saint-Petersburg, Russia;
| | - Regina F. Nasyrova
- V.M. Bekhterev National Medical Research Center for Neurology and Psychiatry, Department of Personalized Psychiatry and Neurology, 192019 Saint Petersburg, Russia
- Correspondence: (O.V.B.); (N.A.S.); (R.F.N.)
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Teixeira SA, Marques DBD, Costa TC, Oliveira HC, Costa KA, Carrara ER, da Silva W, Guimarães JD, Neves MM, Ibelli AMG, Cantão ME, Ledur MC, Peixoto JO, Guimarães SEF. Transcription Landscape of the Early Developmental Biology in Pigs. Animals (Basel) 2021; 11:ani11051443. [PMID: 34069910 PMCID: PMC8157595 DOI: 10.3390/ani11051443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 12/13/2022] Open
Abstract
Since pre- and postnatal development are programmed during early prenatal life, studies addressing the complete transcriptional landscape during organogenesis are needed. Therefore, we aimed to disentangle differentially expressed (DE) genes between fetuses (at 35 days old) and embryos (at 25 days old) through RNA-sequencing analysis using the pig as model. In total, 1705 genes were DE, including the top DE IBSP, COL6A6, HBE1, HBZ, HBB, and NEUROD6 genes, which are associated with developmental transition from embryos to fetuses, such as ossification, skeletal muscle development, extracellular matrix organization, cardiovascular system, erythrocyte differentiation, and neuronal system. In pathway analysis, embryonic development highlighted those mainly related to morphogenic signaling and cell interactions, which are crucial for transcriptional control during the establishment of the main organs in early prenatal development, while pathways related to myogenesis, neuronal development, and cardiac and striated muscle contraction were enriched for fetal development, according to the greater complexity of organs and body structures at this developmental stage. Our findings provide an exploratory and informative transcriptional landscape of pig organogenesis, which might contribute to further studies addressing specific developmental events in pigs and in other mammals.
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Affiliation(s)
- Susana A. Teixeira
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil; (S.A.T.); (D.B.D.M.); (T.C.C.); (H.C.O.); (K.A.C.); (E.R.C.); (W.d.S.)
| | - Daniele B. D. Marques
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil; (S.A.T.); (D.B.D.M.); (T.C.C.); (H.C.O.); (K.A.C.); (E.R.C.); (W.d.S.)
| | - Thaís C. Costa
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil; (S.A.T.); (D.B.D.M.); (T.C.C.); (H.C.O.); (K.A.C.); (E.R.C.); (W.d.S.)
| | - Haniel C. Oliveira
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil; (S.A.T.); (D.B.D.M.); (T.C.C.); (H.C.O.); (K.A.C.); (E.R.C.); (W.d.S.)
| | - Karine A. Costa
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil; (S.A.T.); (D.B.D.M.); (T.C.C.); (H.C.O.); (K.A.C.); (E.R.C.); (W.d.S.)
| | - Eula R. Carrara
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil; (S.A.T.); (D.B.D.M.); (T.C.C.); (H.C.O.); (K.A.C.); (E.R.C.); (W.d.S.)
| | - Walmir da Silva
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil; (S.A.T.); (D.B.D.M.); (T.C.C.); (H.C.O.); (K.A.C.); (E.R.C.); (W.d.S.)
| | - José D. Guimarães
- Department of Veterinary Medicine, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil;
| | - Mariana M. Neves
- Department of General Biology, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil;
| | - Adriana M. G. Ibelli
- Embrapa Suínos e Aves, Concordia 89715-899, SC, Brazil; (A.M.G.I.); (M.E.C.); (M.C.L.); (J.O.P.)
| | - Maurício E. Cantão
- Embrapa Suínos e Aves, Concordia 89715-899, SC, Brazil; (A.M.G.I.); (M.E.C.); (M.C.L.); (J.O.P.)
| | - Mônica C. Ledur
- Embrapa Suínos e Aves, Concordia 89715-899, SC, Brazil; (A.M.G.I.); (M.E.C.); (M.C.L.); (J.O.P.)
| | - Jane O. Peixoto
- Embrapa Suínos e Aves, Concordia 89715-899, SC, Brazil; (A.M.G.I.); (M.E.C.); (M.C.L.); (J.O.P.)
| | - Simone E. F. Guimarães
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil; (S.A.T.); (D.B.D.M.); (T.C.C.); (H.C.O.); (K.A.C.); (E.R.C.); (W.d.S.)
- Correspondence: ; Tel.: +55-31-36124671
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Berndt R, Albrecht M, Rusch R. Strategies to Overcome the Barrier of Ischemic Microenvironment in Cell Therapy of Cardiovascular Disease. Int J Mol Sci 2021; 22:ijms22052312. [PMID: 33669136 PMCID: PMC7956787 DOI: 10.3390/ijms22052312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 12/11/2022] Open
Abstract
The transplantation of various immune cell types are promising approaches for the treatment of ischemic cardiovascular disease including myocardial infarction (MI) and peripheral arterial disease (PAD). Major limitation of these so-called Advanced Therapy Medicinal Products (ATMPs) is the ischemic microenvironment affecting cell homeostasis and limiting the demanded effect of the transplanted cell products. Accordingly, different clinical and experimental strategies have been evolved to overcome these obstacles. Here, we give a short review of the different experimental and clinical strategies to solve these issues due to ischemic cardiovascular disease.
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Affiliation(s)
- Rouven Berndt
- Clinic of Cardiovascular Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany;
- Vascular Research Center, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
- Correspondence: ; Tel.: +49-(0431)-500-22033; Fax: +49-(0431)-500-22024
| | - Martin Albrecht
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, 24105 Kiel, Germany;
| | - René Rusch
- Clinic of Cardiovascular Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany;
- Vascular Research Center, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
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7
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Fosse JH, Haraldsen G, Falk K, Edelmann R. Endothelial Cells in Emerging Viral Infections. Front Cardiovasc Med 2021; 8:619690. [PMID: 33718448 PMCID: PMC7943456 DOI: 10.3389/fcvm.2021.619690] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 02/01/2021] [Indexed: 12/11/2022] Open
Abstract
There are several reasons to consider the role of endothelial cells in COVID-19 and other emerging viral infections. First, severe cases of COVID-19 show a common breakdown of central vascular functions. Second, SARS-CoV-2 replicates in endothelial cells. Third, prior deterioration of vascular function exacerbates disease, as the most common comorbidities of COVID-19 (obesity, hypertension, and diabetes) are all associated with endothelial dysfunction. Importantly, SARS-CoV-2's ability to infect endothelium is shared by many emerging viruses, including henipaviruses, hantavirus, and highly pathogenic avian influenza virus, all specifically targeting endothelial cells. The ability to infect endothelium appears to support generalised dissemination of infection and facilitate the access to certain tissues. The disturbed vascular function observed in severe COVID-19 is also a prominent feature of many other life-threatening viral diseases, underscoring the need to understand how viruses modulate endothelial function. We here review the role of vascular endothelial cells in emerging viral infections, starting with a summary of endothelial cells as key mediators and regulators of vascular and immune responses in health and infection. Next, we discuss endotheliotropism as a possible virulence factor and detail features that regulate viruses' ability to attach to and enter endothelial cells. We move on to review how endothelial cells detect invading viruses and respond to infection, with particular focus on pathways that may influence vascular function and the host immune system. Finally, we discuss how endothelial cell function can be dysregulated in viral disease, either by viral components or as bystander victims of overshooting or detrimental inflammatory and immune responses. Many aspects of how viruses interact with the endothelium remain poorly understood. Considering the diversity of such mechanisms among different emerging viruses allows us to highlight common features that may be of general validity and point out important challenges.
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Affiliation(s)
| | - Guttorm Haraldsen
- Department of Pathology, Oslo University Hospital, Oslo, Norway.,Department of Pathology, University of Oslo, Oslo, Norway
| | - Knut Falk
- Norwegian Veterinary Institute, Oslo, Norway.,AquaMed Consulting AS, Oslo, Norway
| | - Reidunn Edelmann
- Department of Clinical Medicine, Centre for Cancer Biomarkers CCBIO, University of Bergen, Bergen, Norway
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8
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Ferreira AK, Cristofaro B, Menezes MC, de Oliveira AK, Tashima AK, de Melo RL, Silva CCF, Rodriguez MGP, Carvalho DCDOS, de Azevedo RA, Junior PLDS, Mambelli LI, Portaro FV, Pardanaud L, Eichmann A, Sant'Anna OA, Faria M. Alphastatin-C a new inhibitor of endothelial cell activation is a pro-arteriogenic agent in vivo and retards B16-F10 melanoma growth in a preclinical model. Oncotarget 2020; 11:4770-4787. [PMID: 33473260 PMCID: PMC7771711 DOI: 10.18632/oncotarget.27839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 06/23/2018] [Indexed: 12/04/2022] Open
Abstract
Most characterized angiogenic modulators are proteolytic fragments of structural plasma and/or matrix components. Herein, we have identified a novel anti-angiogenic peptide generated by the in vitro hydrolysis of the C-terminal moiety of the fibrinogen alpha chain, produced by the snake venom metalloprotease bothropasin (SVMP), a hemorrhagic proteinase in Bothrops jararaca venom. The 14-amino acids peptide (alphastatin-C) is a potent antagonist of basic fibroblast growth factor, induced endothelial cell (HUVEC-CS) proliferation, migration and capillary tube formation in matrigel. It also inhibits cell adhesion to fibronectin. The basis of the antagonism between bFGF and alphastatin-C is elucidated by the inhibition of various bFGF induced signaling pathways and their molecular components modification, whenever the combination of the stimuli is provided, in comparison to the treatment with bFGF only. To corroborate to the potential therapeutic use of alphastatin-C, we have chosen to perform in vivo assays in two distinct angiogenic settings. In chick model, alphastatin-C inhibits chorioallantoic membrane angiogenesis. In mouse, it efficiently reduces tumor number and volume in a melanoma model, due to the impairment of tumor neovascularization in treated mice. In contrast, we show that the alphastatin-C peptide induces arteriogenesis, increasing pial collateral density in neonate mice. alphastatin-C is an efficient new antiangiogenic FGF-associated agent in vitro, it is an inhibitor of embryonic and tumor vascularization in vivo while, it is an arteriogenic agent. The results also suggest that SVMPs can be used as in vitro biochemical tools to process plasma and/or matrix macromolecular components unraveling new angiostatic peptides.
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Affiliation(s)
- Adilson Kleber Ferreira
- Department of Immunology, Laboratory of Tumor Immunology, Institute of Biomedical Science, University of Sao Paulo, Sao Paulo, SP, Brazil.,Alchemypet, Veterinary Dignostic Medicine, CIETEC/IPEN, Department of Oncology, University of Sao Paulo, Sao Paulo, Brazil
| | - Brunella Cristofaro
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, Paris, France
| | - Milene Cristina Menezes
- Special Laboratory of Applied Toxinology, Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Butantan Institute, São Paulo, SP, Brazil
| | - Ana Karina de Oliveira
- Special Laboratory of Applied Toxinology, Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Butantan Institute, São Paulo, SP, Brazil
| | - Alexandre Keiji Tashima
- Special Laboratory of Applied Toxinology, Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Butantan Institute, São Paulo, SP, Brazil.,Department of Biochemistry, Escola Paulista de Medicina, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Robson Lopes de Melo
- Special Laboratory of Applied Toxinology, Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Butantan Institute, São Paulo, SP, Brazil
| | | | | | | | | | | | - Lisley Inata Mambelli
- Department of Immunology, Laboratory of Tumor Immunology, Institute of Biomedical Science, University of Sao Paulo, Sao Paulo, SP, Brazil
| | | | - Luc Pardanaud
- Cardiovascular Research Center and the Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, CT, USA.,INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Anne Eichmann
- Cardiovascular Research Center and the Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, CT, USA.,INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Osvaldo Augusto Sant'Anna
- Special Laboratory of Applied Toxinology, Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Butantan Institute, São Paulo, SP, Brazil
| | - Mxarcella Faria
- Special Laboratory of Applied Toxinology, Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Butantan Institute, São Paulo, SP, Brazil
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Caviedes-Bucheli J, Lopez-Moncayo LF, Muñoz-Alvear HD, Hernandez-Acosta F, Pantoja-Mora M, Rodriguez-Guerrero AS, López-Ordoñez A, Díaz LE, Gomez-Sosa JF, Munoz HR. Expression of early angiogenesis indicators in mature versus immature teeth. BMC Oral Health 2020; 20:324. [PMID: 33183306 PMCID: PMC7664071 DOI: 10.1186/s12903-020-01313-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/04/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Proper oxygen balance in the dental pulp is essential for cell metabolism. Angiogenesis in the pulp is a constant process during the life of the tooth. Hypoxia indicators in a tissue, such as HIF-1α, as well as vascular destabilization markers, such as ANG2 and its receptor TIE2, are necessary for angiogenesis. Therefore the purpose of this study is to evaluate the expression of HIF-1α, ANG1, ANG2 and TIE2 in dental pulp as early angiogenesis indicators in teeth with complete and incomplete root development. METHODS Forty human dental pulps were obtained from freshly extracted third molars divided into two groups: incomplete (n = 20) and complete (n = 20) root development. Dental pulps were stored at - 80 °C, defrosted in an ice bath and re-frozen with their respective thaws to disintegrate the tissue. Three sonication cycles were performed until the tissues were homogenized, then thaw were centrifuged and the supernatant was collected for the detection of the markers to be studied. The samples were processed for the ELISA test using the ELISA-sandwich principle. Student t and Mann-Whitney U tests were performed to determine statistically significant differences between groups. RESULTS In the complete root development, HIF-1α, ANG1, ANG2 and TIE2 expressions were significantly higher than their expression in the incomplete root development group. CONCLUSIONS The angiogenic process seems to be a physiological process in the dental pulp. Angiogenic activity is higher in teeth with mature than immature apex teeth.
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Affiliation(s)
- Javier Caviedes-Bucheli
- Centro de Investigaciones Odontologicas, Pontificia Universidad Javeriana, Bogota, Colombia.
- Endodontics Department, Universidad Cooperativa de Colombia, Pasto, Colombia.
| | | | | | | | | | | | | | - Luis E Díaz
- Engineer School, Universidad de La Sabana, Chia, Colombia
| | | | - Hugo R Munoz
- Endodontics Department, Universidad de San Carlos de Guatemala, Guatemala City, Guatemala
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10
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Combination of HIV-1 and Diabetes Enhances Blood Brain Barrier Injury via Effects on Brain Endothelium and Pericytes. Int J Mol Sci 2020; 21:ijms21134663. [PMID: 32630025 PMCID: PMC7370277 DOI: 10.3390/ijms21134663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/25/2020] [Accepted: 06/27/2020] [Indexed: 12/19/2022] Open
Abstract
Despite combined antiretroviral therapy (ART) achieving efficient HIV replication control, HIV-associated neurocognitive disorders (HAND) continue to be highly prevalent in HIV-infected patients. Diabetes mellitus (DM) is a well-known comorbidity of HAND in HIV-infected patients. Blood brain barrier (BBB) dysfunction has been linked recently to dementia development, specifically in DM patients. BBB injury exists both in HIV and DM, likely contributing to cognitive decline. However, its extent, exact cellular targets and mechanisms are largely unknown. In this report, we found a decrease in pericyte coverage and expression of tight junction proteins in human brain tissues from HIV patients with DM and evidence of HAND when compared to HIV-infected patients without DM or seronegative DM patients. Using our in vitro BBB models, we demonstrated diminution of barrier integrity, enhanced monocyte adhesion, changes in cytoskeleton and overexpression of adhesion molecules in primary human brain endothelial cells or human brain pericytes after exposure to HIV and DM-relevant stimuli. Our study demonstrates for the first-time evidence of impaired BBB function in HIV-DM patients and shows potential mechanisms leading to it in brain endothelium and pericytes that may result in poorer cognitive performance compared to individuals without HIV and DM.
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11
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Biswas I, Panicker SR, Cai X, Mehta-D'souza P, Rezaie AR. Inorganic Polyphosphate Amplifies High Mobility Group Box 1-Mediated Von Willebrand Factor Release and Platelet String Formation on Endothelial Cells. Arterioscler Thromb Vasc Biol 2019; 38:1868-1877. [PMID: 29930000 DOI: 10.1161/atvbaha.118.311165] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objective- Inorganic polyphosphate (polyP) is known to modulate coagulation, inflammation, and metabolic pathways. It also amplifies inflammatory responses of HMGB1 (high mobility group box 1) in endothelial cells. The objective of this study was to evaluate the effect of polyP on von Willebrand factor (VWF) release from endothelial cells with or without HMGB1. Approach and Results- EA.hy926 endothelial cells were treated with different concentrations of polyP70 alone or in combination with different concentrations of HMGB1. VWF release was measured by an ELISA assay in the absence or presence of pharmacological inhibitors of the receptor for advanced glycation end products, P2Y1, and Ca2+. A flow chamber assay was used to monitor polyP70-mediated platelet recruitment and VWF-platelet string formation. PolyP70 and HMGB1 induced VWF release from endothelial cells by a concentration-dependent manner. PolyP70 amplified HMGB1-mediated VWF release from endothelial cells. This was also true if boiled platelet releasate was used as the source of polyP. Gene silencing or pharmacological inhibitors of receptor for advanced glycation end products, P2Y1, and Ca2+ significantly inhibited VWF release. PolyP70 and HMGB1 synergistically promoted VWF-platelet string formation in the flow chamber assay, which was inhibited by the anti-GPIbα (glycoprotein Ib alpha) antibody. VWF release by polyP70-HMGB1 complex required phosphorylation of Src and phospholipase C because inhibitors of Src, phospholipase C, and Ca2+ signaling significantly decreased VWF secretion. The polyP70-HMGB1 complex also increased angiopoietin-2 release, indicating that Weibel-Palade body exocytosis is involved in the VWF release. Conclusions- PolyP70 can promote thrombotic and inflammatory pathways by inducing VWF release and platelet string formation on endothelial cells.
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Affiliation(s)
- Indranil Biswas
- From the Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation (I.B., S.R.P., X.C., P.M.-D., A.R.R.)
| | - Sumith R Panicker
- From the Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation (I.B., S.R.P., X.C., P.M.-D., A.R.R.)
| | - Xiaofeng Cai
- From the Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation (I.B., S.R.P., X.C., P.M.-D., A.R.R.)
| | - Padmaja Mehta-D'souza
- From the Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation (I.B., S.R.P., X.C., P.M.-D., A.R.R.)
| | - Alireza R Rezaie
- From the Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation (I.B., S.R.P., X.C., P.M.-D., A.R.R.).,Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City (A.R.R.)
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12
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Yousef H, Czupalla CJ, Lee D, Chen MB, Burke AN, Zera KA, Zandstra J, Berber E, Lehallier B, Mathur V, Nair RV, Bonanno LN, Yang AC, Peterson T, Hadeiba H, Merkel T, Körbelin J, Schwaninger M, Buckwalter MS, Quake SR, Butcher EC, Wyss-Coray T. Aged blood impairs hippocampal neural precursor activity and activates microglia via brain endothelial cell VCAM1. Nat Med 2019; 25:988-1000. [PMID: 31086348 PMCID: PMC6642642 DOI: 10.1038/s41591-019-0440-4] [Citation(s) in RCA: 231] [Impact Index Per Article: 46.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 03/11/2019] [Indexed: 01/25/2023]
Abstract
An aged circulatory environment can activate microglia, reduce neural precursor cell activity, and impair cognition in mice. We hypothesized that brain endothelial cells (BECs) mediate at least some of these effects. We observe BECs in the aged mouse hippocampus express an inflammatory transcriptional profile with focal upregulation of Vascular Cell Adhesion Molecule 1 (VCAM1), a protein that facilitates vascular-immune cell interactions. Concomitantly, the shed, soluble form of VCAM1 is prominently increased in plasma of aged humans and mice, and their plasma is sufficient to increase VCAM1 expression in cultured BECs and young mouse hippocampi. Systemic anti-VCAM1 antibody or genetic ablation of VCAM1 in BECs counteracts the detrimental effects of aged plasma on young brains and reverses aging aspects including microglial reactivity and cognitive deficits in old mouse brains. Together, these findings establish brain endothelial VCAM1 at the blood-brain barrier (BBB) as a possible target to treat age-related neurodegeneration.
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Affiliation(s)
- Hanadie Yousef
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Cathrin J Czupalla
- VA Palo Alto Health Care System, Palo Alto, CA, USA.,Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA.,Palo Alto Veterans Institute for Research, Palo Alto, CA, USA
| | - Davis Lee
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Michelle B Chen
- Departments of Bioengineering and Applied Physics, Stanford University, Stanford, CA, USA
| | - Ashley N Burke
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Kristy A Zera
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Judith Zandstra
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Elisabeth Berber
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Benoit Lehallier
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Vidhu Mathur
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Ramesh V Nair
- Stanford Center for Genomics and Personalized Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Liana N Bonanno
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Andrew C Yang
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,Departments of Bioengineering and Applied Physics, Stanford University, Stanford, CA, USA
| | - Todd Peterson
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Husein Hadeiba
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA.,Palo Alto Veterans Institute for Research, Palo Alto, CA, USA
| | - Taylor Merkel
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Jakob Körbelin
- Section of Pneumology, Department of Oncology, Hematology and Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Schwaninger
- Institute of Experimental and Clinical Pharmacology and Toxicology, University of Lubeck, Lubeck, Germany
| | - Marion S Buckwalter
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
| | - Stephen R Quake
- Departments of Bioengineering and Applied Physics, Stanford University, Stanford, CA, USA.,Chan Zuckerberg Biohub, Stanford, CA, USA
| | - Eugene C Butcher
- VA Palo Alto Health Care System, Palo Alto, CA, USA.,Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA.,Palo Alto Veterans Institute for Research, Palo Alto, CA, USA
| | - Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA. .,VA Palo Alto Health Care System, Palo Alto, CA, USA. .,Palo Alto Veterans Institute for Research, Palo Alto, CA, USA. .,Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA.
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13
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Lane NE, Nyman JS, Uppuganti S, Chaudhari AJ, Aguirre JI, Shidara K, Liu XP, Yao W, Kimmel DB. Inhibition of vascular endothelial growth factor in young adult mice causes low bone blood flow and bone strength with no effect on bone mass in trabecular regions. Bone Rep 2019; 10:100210. [PMID: 31193542 PMCID: PMC6535464 DOI: 10.1016/j.bonr.2019.100210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 05/03/2019] [Indexed: 12/15/2022] Open
Abstract
Objective To determine the effect of an antibody to vascular endothelial growth factor (VEGF) on bone blood flow, bone strength, and bone mass in the young adult mouse. Methods Ten-week-old male BALB/cJ mice were body weight-randomized into either a rodent anti-VEGF monoclonal antibody (anti-VEGF, B20-4.1.1; 5 mg/kg 2×/wk.; n = 12) group or a vehicle (VEH; n = 12) group. After 42 days, mice were evaluated for bone blood flow at the distal femur by 18F-NaF-PET/CT and then necropsied. Samples from trabecular and cortical bone regions were evaluated for bone strength by mechanical testing, bone mass by peripheral quantitative computed tomography (pQCT), and micoarchitecture (MicroCT). Hydration of the whole femur was studied by proton nuclear magnetic resonance relaxometry (1H NMR). Results Distal femur blood flow was 43% lower in anti-VEGF mice than in VEH mice (p = 0.009). Ultimate load in the lumbar vertebral body was 25% lower in anti-VEGF than in VEH mice (p = 0.013). Bone mineral density (BMD) in the trabecular region of the proximal humeral metaphysis by pQCT, and bone volume fraction and volumetric BMD by MicroCT were the same in the two groups. Volume fraction of bound water (BW) of the whole femur was 14% lower in anti-VEGF than in VEH mice (p = 0.003). Finally, BW, but not cortical tissue mineral density, helped section modulus explain the variance in the ultimate moment experienced by the femur in three-point bending. Conclusion Anti-VEGF caused low bone blood flow and bone strength in trabecular bone regions without influencing BMD and microarchitecture. Low bone strength was also associated with low bone hydration. These data suggest that bone blood flow is a novel bone property that affects bone quality. An antibody to vascular endothelial growth factor (anti-VEGF) caused low bone blood flow in a trabecular bone rich region. Anti-VEGF did not affect trabecular bone region and bone hydration of the whole femur were also low, trabecular bone mass was not affected by anti-VEGF. Bone blood flow may be a bone property that affects bone quality through bone hydration. Anti-VEGF caused low trabecular bone strength in the vertebral body and low bone hydration of the whole femur.
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Affiliation(s)
- N E Lane
- Center for Musculoskeletal Health, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - J S Nyman
- Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - S Uppuganti
- Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - A J Chaudhari
- Center for Molecular and Genomic Imaging, Department of Radiology, University of California at Davis, Davis, CA 95616, USA
| | - J I Aguirre
- Department of Physiological Sciences, University of Florida, Gainesville, FL 32610, USA
| | - K Shidara
- Center for Musculoskeletal Health, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - X P Liu
- Center for Musculoskeletal Health, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - W Yao
- Center for Musculoskeletal Health, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - D B Kimmel
- Department of Physiological Sciences, University of Florida, Gainesville, FL 32610, USA
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14
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Liu Y, Ciotti GE, Eisinger-Mathason TSK. Hypoxia and the Tumor Secretome. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1136:57-69. [PMID: 31201716 DOI: 10.1007/978-3-030-12734-3_4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Metastasis remains the leading cause of cancer-related deaths. To date, there are no specific treatments targeting disseminated disease. New therapeutic options will become available only if we enhance our understanding of mechanisms underlying metastatic spread. A large body of literature shows that the metastatic potential of tumor cells is strongly influenced by microenvironmental cues such as low oxygen (hypoxia). Clinically, hypoxia is a hallmark of most solid tumors and is associated with increased metastasis and poor survival in a variety of cancer types. Mechanistically, hypoxia influences multiple steps within the metastatic cascade and particularly impacts the interactions between tumor cells and host stroma at both primary and secondary sites. Here we review current evidence for a hypoxia-induced tumor secretome and its impact on metastatic progression. These studies have identified potential biomarkers and therapeutic targets that could be integrated into strategies for preventing and treating metastatic disease.
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Affiliation(s)
- Ying Liu
- The Abramson Family Cancer Research Institute, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Gabrielle E Ciotti
- The Abramson Family Cancer Research Institute, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - T S Karin Eisinger-Mathason
- The Abramson Family Cancer Research Institute, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
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15
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Merkulova-Rainon T, Mantsounga CS, Broquères-You D, Pinto C, Vilar J, Cifuentes D, Bonnin P, Kubis N, Henrion D, Silvestre JS, Lévy BI. Peripheral post-ischemic vascular repair is impaired in a murine model of Alzheimer’s disease. Angiogenesis 2018. [DOI: 10.1007/s10456-018-9608-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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16
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Navarro-Requena C, Weaver JD, Clark AY, Clift DA, Pérez-Amodio S, Castaño Ó, Zhou DW, García AJ, Engel E. PEG hydrogel containing calcium-releasing particles and mesenchymal stromal cells promote vessel maturation. Acta Biomater 2018; 67:53-65. [PMID: 29246650 PMCID: PMC6534820 DOI: 10.1016/j.actbio.2017.12.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 11/23/2017] [Accepted: 12/05/2017] [Indexed: 12/20/2022]
Abstract
The use of human mesenchymal stromal cells (hMSC) for treating diseased tissues with poor vascularization has received significant attention, but low cell survival has hampered its translation to the clinic. Bioglasses and glass-ceramics have also been suggested as therapeutic agents for stimulating angiogenesis in soft tissues, but these effects need further evaluation in vivo. In this study, calcium-releasing particles and hMSC were combined within a hydrogel to examine their vasculogenic potential in vitro and in vivo. The particles provided sustained calcium release and showed proangiogenic stimulation in a chorioallantoic membrane (CAM) assay. The number of hMSC encapsulated in a degradable RGD-functionalized PEG hydrogel containing particles remained constant over time and IGF-1 release was increased. When implanted in the epidydimal fat pad of immunocompromised mice, this composite material improved cell survival and stimulated vessel formation and maturation. Thus, the combination of hMSC and calcium-releasing glass-ceramics represents a new strategy to achieve vessel stabilization, a key factor in the revascularization of ischemic tissues. STATEMENT OF SIGNIFICANCE Increasing blood vessel formation in diseased tissues with poor vascularization is a current clinical challenge. Cell therapy using human mesenchymal stem cells has received considerable interest, but low cell survival has hampered its translation to the clinic. Bioglasses and glass-ceramics have been explored as therapeutic agents for stimulating angiogenesis in soft tissues, but these effects need further evaluation in vivo. By incorporating both human mesenchymal stem cells and glass-ceramic particles in an implantable hydrogel, this study provides insights into the vasculogenic potential in soft tissues of the combined strategies. Enhancement of vessel formation and maturation supports further investigation of this strategy.
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Affiliation(s)
- Claudia Navarro-Requena
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain; Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain
| | - Jessica D Weaver
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Amy Y Clark
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Douglas A Clift
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain
| | - Soledad Pérez-Amodio
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain; Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain
| | - Óscar Castaño
- Electronics and Biomedical Engineering, Universitat de Barcelona (UB), Barcelona 08028, Spain; Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; Institute of Nanoscience and Nanotechnology, Universitat de Barcelona (UB), Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain
| | - Dennis W Zhou
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Andrés J García
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Elisabeth Engel
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain; Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain.
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17
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Chemotherapy-induced metastasis: mechanisms and translational opportunities. Clin Exp Metastasis 2018; 35:269-284. [PMID: 29307118 DOI: 10.1007/s10585-017-9870-x] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 12/20/2017] [Indexed: 12/13/2022]
Abstract
Tumors often overcome the cytotoxic effects of chemotherapy through either acquired or environment-mediated drug resistance. In addition, signals from the microenvironment obfuscate the beneficial effects of chemotherapy and may facilitate progression and metastatic dissemination. Seminal mediators in chemotherapy-induced metastasis appear to be a wide range of hematopoietic, mesenchymal and immune progenitor cells, originating from the bone marrow. The actual purpose of these cells is to orchestrate the repair response to the cytotoxic damage of chemotherapy. However, these repair responses are exploited by tumor cells at every step of the metastatic cascade, ranging from tumor cell invasion, intravasation and hematogenous dissemination to extravasation and effective colonization at the metastatic site. A better understanding of the mechanistic underpinnings of chemotherapy-induced metastasis will allow us to better predict which patients are more likely to exhibit pro-metastatic responses to chemotherapy and will help develop new therapeutic strategies to neutralize chemotherapy-driven prometastatic changes.
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18
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Núñez-Gómez E, Pericacho M, Ollauri-Ibáñez C, Bernabéu C, López-Novoa JM. The role of endoglin in post-ischemic revascularization. Angiogenesis 2016; 20:1-24. [PMID: 27943030 DOI: 10.1007/s10456-016-9535-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 11/29/2016] [Indexed: 12/12/2022]
Abstract
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. However, the precise role of endoglin in the several processes associated with revascularization has not been completely elucidated and, in some cases, the function ascribed to endoglin by different authors is controversial. The purpose of this review is to organize in a critical way the information available for the role of endoglin in several phenomena (angiogenesis, arteriogenesis and collateral development) associated with post-ischemic revascularization.
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Affiliation(s)
- Elena Núñez-Gómez
- Renal and Cardiovascular Research Unit, Department of Physiology and Pharmacology, University of Salamanca, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain
| | - Miguel Pericacho
- Renal and Cardiovascular Research Unit, Department of Physiology and Pharmacology, University of Salamanca, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain
| | - Claudia Ollauri-Ibáñez
- Renal and Cardiovascular Research Unit, Department of Physiology and Pharmacology, University of Salamanca, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain
| | - Carmelo Bernabéu
- Centro de Investigaciones Biológicas, Spanish National Research Council (CIB, CSIC), Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | - José M López-Novoa
- Renal and Cardiovascular Research Unit, Department of Physiology and Pharmacology, University of Salamanca, Salamanca, Spain. .,Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain.
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19
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Yu H, Moran CS, Trollope AF, Woodward L, Kinobe R, Rush CM, Golledge J. Angiopoietin-2 attenuates angiotensin II-induced aortic aneurysm and atherosclerosis in apolipoprotein E-deficient mice. Sci Rep 2016; 6:35190. [PMID: 27767064 PMCID: PMC5073347 DOI: 10.1038/srep35190] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 09/22/2016] [Indexed: 11/09/2022] Open
Abstract
Angiogenesis and inflammation are implicated in aortic aneurysm and atherosclerosis and regulated by angiopoietin-2 (Angpt2). The effect of Angpt2 administration on experimental aortic aneurysm and atherosclerosis was examined. Six-month-old male apolipoprotein E deficient (ApoE-/-) mice were infused with angiotensin II (AngII) and administered subcutaneous human Fc-protein (control) or recombinant Angpt2 (rAngpt2) over 14 days. Administration of rAngpt2 significantly inhibited AngII-induced aortic dilatation and rupture of the suprarenal aorta (SRA), and development of atherosclerosis within the aortic arch. These effects were blood pressure and plasma lipoprotein independent and associated with Tie2 activation and down-regulation of monocyte chemotactic protein-1 (MCP-1) within the SRA. Plasma concentrations of MCP-1 and interleukin-6 were significantly lower in mice receiving rAngpt2. Immunostaining for the monocyte/macrophage marker MOMA-2 and the angiogenesis marker CD31 within the SRA were less in mice receiving rAngpt2 than controls. The percentage of inflammatory (Ly6Chi) monocytes within the bone marrow was increased while that in peripheral blood was decreased by rAngpt2 administration. In conclusion, administration of rAngpt2 attenuated angiotensin II-induced aortic aneurysm and atherosclerosis in ApoE-/- mice associated with reduced aortic inflammation and angiogenesis. Up-regulation of Angpt2 may have potential therapeutic value in patients with aortic aneurysm and atherosclerosis.
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Affiliation(s)
- Hongyou Yu
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, Townsville, 4811, Australia
| | - Corey S Moran
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, Townsville, 4811, Australia
| | - Alexandra F Trollope
- Discipline of Anatomy, College of Medicine and Dentistry, James Cook University, Townsville, 4811, Australia
| | - Lynn Woodward
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, Townsville, 4811, Australia
| | - Robert Kinobe
- Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, 4811, Australia
| | - Catherine M Rush
- Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, 4811, Australia
| | - Jonathan Golledge
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, Townsville, 4811, Australia.,Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, 4814, Australia
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20
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Gupta A, Bhatnagar S. Vasoregression: A Shared Vascular Pathology Underlying Macrovascular And Microvascular Pathologies? OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2016; 19:733-53. [PMID: 26669709 DOI: 10.1089/omi.2015.0128] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Vasoregression is a common phenomenon underlying physiological vessel development as well as pathological microvascular diseases leading to peripheral neuropathy, nephropathy, and vascular oculopathies. In this review, we describe the hallmarks and pathways of vasoregression. We argue here that there is a parallel between characteristic features of vasoregression in the ocular microvessels and atherosclerosis in the larger vessels. Shared molecular pathways and molecular effectors in the two conditions are outlined, thus highlighting the possible systemic causes of local vascular diseases. Our review gives us a system-wide insight into factors leading to multiple synchronous vascular diseases. Because shared molecular pathways might usefully address the diagnostic and therapeutic needs of multiple common complex diseases, the literature analysis presented here is of broad interest to readership in integrative biology, rational drug development and systems medicine.
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Affiliation(s)
- Akanksha Gupta
- 1 Computational and Structural Biology Laboratory, Division of Biotechnology, Netaji Subhas Institute of Technology , Dwarka, New Delhi, India .,2 Department of Biotechnology, IMS Engineering College , Ghaziabad, India
| | - Sonika Bhatnagar
- 1 Computational and Structural Biology Laboratory, Division of Biotechnology, Netaji Subhas Institute of Technology , Dwarka, New Delhi, India
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21
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Human neural stem cell-induced endothelial morphogenesis requires autocrine/paracrine and juxtacrine signaling. Sci Rep 2016; 6:29029. [PMID: 27374240 PMCID: PMC4931512 DOI: 10.1038/srep29029] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/09/2016] [Indexed: 12/25/2022] Open
Abstract
Transplanted neural stem cells (NSC) interact with the host brain microenvironment. A neovascularization is commonly observed in the vicinity of the cell deposit, which is correlated with behavioral improvements. To elucidate the signaling mechanisms between human NSCs and endothelial cells (ECs), these were cocultured in an in vitro model in which NSC-induced endothelial morphogenesis produced a neurovascular environment. Soluble (autocrine/paracrine) and contact–mediated (juxtacrine) signaling molecules were evaluated for two conditionally immortalized fetal NSC lines derived from the cortical anlage (CTXOE03) and ganglionic eminence (STROC05), as well as an adult EC line (D3) derived from the cerebral microvasculature of a hippocampal biopsy. STROC05 were 4 times as efficient to induce endothelial morphogenesis compared to CTXOE03. The cascade of reciprocal interactions between NSCs and ECs in this process was determined by quantifying soluble factors, receptor mapping, and immunocytochemistry for extracellular matrix molecules. The mechanistic significance of these was further evaluated by pharmacological blockade. The sequential cell-specific regulation of autocrine/paracrine and juxtacrine signaling accounted for the differential efficiency of NSCs to induce endothelial morphogenesis. These in vitro studies shed new light on the reciprocal interactions between NSCs and ECs, which are pivotal for our mechanistic understanding of the efficacy of NSC transplantation.
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22
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Shibao CA, Celedonio JE, Ramirez CE, Love-Gregory L, Arnold AC, Choi L, Okamoto LE, Gamboa A, Biaggioni I, Abumrad NN, Abumrad NA. A Common CD36 Variant Influences Endothelial Function and Response to Treatment with Phosphodiesterase 5 Inhibition. J Clin Endocrinol Metab 2016; 101:2751-8. [PMID: 27144937 PMCID: PMC4929841 DOI: 10.1210/jc.2016-1294] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
CONTEXT The scavenger receptor CD36 influences the endothelial nitric oxide-cGMP pathway in vitro. Genetic variants that alter CD36 level are common in African Americans (AAs), a population at high risk of endothelial dysfunction. OBJECTIVE To examine if the minor allele (G) of coding CD36 variant rs3211938 (G/T) which reduces CD36 level by approximately 50% influences endothelial function, insulin sensitivity (IS), and the response to treatment with the nitric oxide-cGMP potentiator sildenafil. DESIGN IS (frequently sampled iv glucose tolerance) and endothelial function (flow mediated dilation [FMD]) were determined in age- and body mass index-matched obese AA women with or without the G allele of rs3211938 (protocol 1). Effect of chronic sildenafil treatment on IS and FMD was tested in AA women with metabolic syndrome and with/without the CD36 variant, using a randomized, placebo-controlled trial (protocol 2). SETTING Two-center study. PARTICIPANTS Obese AA women. INTERVENTION A total of 20-mg sildenafil citrate or placebo thrice daily for 4 weeks. MAIN OUTCOME IS, FMD. RESULTS G allele carriers have lower FMD (P = .03) and cGMP levels (P = .01) than noncarriers. Sildenafil did not improve IS, mean difference 0.12 (95% confidence interval [CI], -0.33 to 0.58; P = .550). However, there was a significant interaction between FMD response to sildenafil and rs3211938 (P = .018). FMD tended to improve in G carriers, 2.9 (95% CI, -0.9 to 6.8; P = .126), whereas it deteriorated in noncarriers, -2.6 (95% CI, -5.1 to -0.1; P = .04). CONCLUSIONS The data document influence of a common genetic variant on susceptibility to endothelial dysfunction and its response to sildenafil treatment.
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Affiliation(s)
- Cyndya A Shibao
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Jorge E Celedonio
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Claudia E Ramirez
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Latisha Love-Gregory
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Amy C Arnold
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Leena Choi
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Luis E Okamoto
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Alfredo Gamboa
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Italo Biaggioni
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Naji N Abumrad
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Nada A Abumrad
- Department of Medicine (C.A.S., J.E.C., C.E.R., A.C.A., L.E.O., A.G., I.B.), Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232; Department of Medicine (L.L.-G., N.A.A.), Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri 63110; Department of Biostatistics (L.C.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232; and Department of Surgery (N.N.A.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
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Persidsky Y, Hill J, Zhang M, Dykstra H, Winfield M, Reichenbach NL, Potula R, Mukherjee A, Ramirez SH, Rom S. Dysfunction of brain pericytes in chronic neuroinflammation. J Cereb Blood Flow Metab 2016; 36:794-807. [PMID: 26661157 PMCID: PMC4821019 DOI: 10.1177/0271678x15606149] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 07/31/2015] [Indexed: 01/09/2023]
Abstract
Brain pericytes are uniquely positioned within the neurovascular unit to provide support to blood brain barrier (BBB) maintenance. Neurologic conditions, such as HIV-1-associated neurocognitive disorder, are associated with BBB compromise due to chronic inflammation. Little is known about pericyte dysfunction during HIV-1 infection. We found decreased expression of pericyte markers in human brains from HIV-1-infected patients (even those on antiretroviral therapy). Using primary human brain pericytes, we assessed expression of pericyte markers (α1-integrin, α-smooth muscle actin, platelet-derived growth factor-B receptor β, CX-43) and found their downregulation after treatment with tumor necrosis factor-α (TNFα) or interleukin-1 β (IL-1β). Pericyte exposure to virus or cytokines resulted in decreased secretion of factors promoting BBB formation (angiopoietin-1, transforming growth factor-β1) and mRNA for basement membrane components. TNFα and IL-1β enhanced expression of adhesion molecules in pericytes paralleling increased monocyte adhesion to pericytes. Monocyte migration across BBB models composed of human brain endothelial cells and pericytes demonstrated a diminished rate in baseline migration compared to constructs composed only of brain endothelial cells. However, exposure to the relevant chemokine, CCL2, enhanced the magnitude of monocyte migration when compared to BBB models composed of brain endothelial cells only. These data suggest an important role of pericytes in BBB regulation in neuroinflammation.
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Affiliation(s)
- Yuri Persidsky
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, PA, USA
| | - Jeremy Hill
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, PA, USA
| | - Ming Zhang
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Holly Dykstra
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Malika Winfield
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Nancy L Reichenbach
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Raghava Potula
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, PA, USA
| | - Abir Mukherjee
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Servio H Ramirez
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, PA, USA Shriners Hospitals Pediatric Research Center, Temple University School of Medicine, Philadelphia, PA, USA
| | - Slava Rom
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, USA Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, PA, USA
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24
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Rossi E, Smadja DM, Boscolo E, Langa C, Arevalo MA, Pericacho M, Gamella-Pozuelo L, Kauskot A, Botella LM, Gaussem P, Bischoff J, Lopez-Novoa JM, Bernabeu C. Endoglin regulates mural cell adhesion in the circulatory system. Cell Mol Life Sci 2016; 73:1715-39. [PMID: 26646071 PMCID: PMC4805714 DOI: 10.1007/s00018-015-2099-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 11/19/2015] [Accepted: 11/23/2015] [Indexed: 02/06/2023]
Abstract
The circulatory system is walled off by different cell types, including vascular mural cells and podocytes. The interaction and interplay between endothelial cells (ECs) and mural cells, such as vascular smooth muscle cells or pericytes, play a pivotal role in vascular biology. Endoglin is an RGD-containing counter-receptor for β1 integrins and is highly expressed by ECs during angiogenesis. We find that the adhesion between vascular ECs and mural cells is enhanced by integrin activators and inhibited upon suppression of membrane endoglin or β1-integrin, as well as by addition of soluble endoglin (SolEng), anti-integrin α5β1 antibody or an RGD peptide. Analysis of different endoglin mutants, allowed the mapping of the endoglin RGD motif as involved in the adhesion process. In Eng (+/-) mice, a model for hereditary hemorrhagic telangectasia type 1, endoglin haploinsufficiency induces a pericyte-dependent increase in vascular permeability. Also, transgenic mice overexpressing SolEng, an animal model for preeclampsia, show podocyturia, suggesting that SolEng is responsible for podocytes detachment from glomerular capillaries. These results suggest a critical role for endoglin in integrin-mediated adhesion of mural cells and provide a better understanding on the mechanisms of vessel maturation in normal physiology as well as in pathologies such as preeclampsia or hereditary hemorrhagic telangiectasia.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Cell Adhesion/physiology
- Cell Line, Tumor
- Disease Models, Animal
- Endoglin
- Endothelium, Vascular/metabolism
- Female
- Human Umbilical Vein Endothelial Cells/metabolism
- Humans
- Integrin beta1/genetics
- Jurkat Cells
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Nude
- Mice, Transgenic
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/metabolism
- Neovascularization, Pathologic/metabolism
- Pericytes/metabolism
- Podocytes/metabolism
- Pre-Eclampsia/genetics
- Pre-Eclampsia/pathology
- Pregnancy
- Protein Binding
- RNA Interference
- RNA, Small Interfering
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Retina/metabolism
- Telangiectasia, Hereditary Hemorrhagic/genetics
- Telangiectasia, Hereditary Hemorrhagic/pathology
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Affiliation(s)
- Elisa Rossi
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), c/Ramiro de Maeztu 9, 28040, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040, Madrid, Spain
- Paris Descartes University, Sorbonne Paris Cite, Paris, France
- Hematology Department, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - David M Smadja
- Hematology Department, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
- Faculté de Pharmacie, Inserm UMR-S1140, Paris, France
| | - Elisa Boscolo
- Department of Surgery, Harvard Medical School, Children's Hospital, Boston, MA, 02115, USA
| | - Carmen Langa
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), c/Ramiro de Maeztu 9, 28040, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040, Madrid, Spain
| | - Miguel A Arevalo
- Departamento de Anatomía e Histología Humanas, Facultad de Medicina, Universidad de Salamanca, 37007, Salamanca, Spain
- Instituto de Investigaciones Biomédicas de Salamanca (IBSAL), 37007, Salamanca, Spain
| | - Miguel Pericacho
- Instituto de Investigaciones Biomédicas de Salamanca (IBSAL), 37007, Salamanca, Spain
- Departamento de Fisiología y Farmacología, Unidad de Fisiopatología Renal y Cardiovascular, Universidad de Salamanca, 37007, Salamanca, Spain
| | - Luis Gamella-Pozuelo
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), c/Ramiro de Maeztu 9, 28040, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040, Madrid, Spain
- Departamento de Fisiología y Farmacología, Unidad de Fisiopatología Renal y Cardiovascular, Universidad de Salamanca, 37007, Salamanca, Spain
| | - Alexandre Kauskot
- Inserm UMR-S1176, Le Kremlin Bicêtre, Paris, France
- Université Paris Sud, Le Kremlin Bicêtre, Paris, France
| | - Luisa M Botella
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), c/Ramiro de Maeztu 9, 28040, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040, Madrid, Spain
| | - Pascale Gaussem
- Hematology Department, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
- Faculté de Pharmacie, Inserm UMR-S1140, Paris, France
| | - Joyce Bischoff
- Department of Surgery, Harvard Medical School, Children's Hospital, Boston, MA, 02115, USA
| | - José M Lopez-Novoa
- Instituto de Investigaciones Biomédicas de Salamanca (IBSAL), 37007, Salamanca, Spain
- Departamento de Fisiología y Farmacología, Unidad de Fisiopatología Renal y Cardiovascular, Universidad de Salamanca, 37007, Salamanca, Spain
| | - Carmelo Bernabeu
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), c/Ramiro de Maeztu 9, 28040, Madrid, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040, Madrid, Spain.
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25
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Rasip1 is essential to blood vessel stability and angiogenic blood vessel growth. Angiogenesis 2016; 19:173-90. [PMID: 26897025 DOI: 10.1007/s10456-016-9498-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/03/2016] [Indexed: 01/09/2023]
Abstract
Cardiovascular function depends on patent, continuous and stable blood vessel formation by endothelial cells (ECs). Blood vessel development initiates by vasculogenesis, as ECs coalesce into linear aggregates and organize to form central lumens that allow blood flow. Molecular mechanisms underlying in vivo vascular 'tubulogenesis' are only beginning to be unraveled. We previously showed that the GTPase-interacting protein called Rasip1 is required for the formation of continuous vascular lumens in the early embryo. Rasip1(-/-) ECs exhibit loss of proper cell polarity and cell shape, disrupted localization of EC-EC junctions and defects in adhesion of ECs to extracellular matrix. In vitro studies showed that Rasip1 depletion in cultured ECs blocked tubulogenesis. Whether Rasip1 is required in blood vessels after their initial formation remained unclear. Here, we show that Rasip1 is essential for vessel formation and maintenance in the embryo, but not in quiescent adult vessels. Rasip1 is also required for angiogenesis in three models of blood vessel growth: in vitro matrix invasion, retinal blood vessel growth and directed in vivo angiogenesis assays. Rasip1 is thus necessary in growing embryonic blood vessels, postnatal angiogenic sprouting and remodeling, but is dispensable for maintenance of established blood vessels, making it a potential anti-angiogenic therapeutic target.
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26
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The impact of chronic intermittent hypoxia on hematopoiesis and the bone marrow microenvironment. Pflugers Arch 2016; 468:919-32. [PMID: 26856724 PMCID: PMC4842224 DOI: 10.1007/s00424-016-1797-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 12/21/2015] [Accepted: 01/26/2016] [Indexed: 12/18/2022]
Abstract
Obstructive sleep apnea (OSA) is a highly prevalent sleep-related breathing disorder which is associated with patient morbidity and an elevated risk of developing hypertension and cardiovascular diseases. There is ample evidence for the involvement of bone marrow (BM) cells in the pathophysiology of cardiovascular diseases but a connection between OSA and modulation of the BM microenvironment had not been established. Here, we studied how chronic intermittent hypoxia (CIH) affected hematopoiesis and the BM microenvironment, in a rat model of OSA. We show that CIH followed by normoxia increases the bone marrow hypoxic area, increases the number of multipotent hematopoietic progenitors (CFU assay), promotes erythropoiesis, and increases monocyte counts. In the BM microenvironment of CIH-subjected animals, the number of VE-cadherin-expressing blood vessels, particularly sinusoids, increased, accompanied by increased smooth muscle cell coverage, while vWF-positive vessels decreased. Molecularly, we investigated the expression of endothelial cell-derived genes (angiocrine factors) that could explain the cellular phenotypes. Accordingly, we observed an increase in colony-stimulating factor 1, vascular endothelium growth factor, delta-like 4, and angiopoietin-1 expression. Our data shows that CIH induces vascular remodeling in the BM microenvironment, which modulates hematopoiesis, increasing erythropoiesis, and circulating monocytes. Our study reveals for the first time the effect of CIH in hematopoiesis and suggests that hematopoietic changes may occur in OSA patients.
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27
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Verma SK, Molitoris BA. Renal endothelial injury and microvascular dysfunction in acute kidney injury. Semin Nephrol 2015; 35:96-107. [PMID: 25795503 DOI: 10.1016/j.semnephrol.2015.01.010] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The kidney is comprised of heterogeneous cell populations that function together to perform a number of tightly controlled, complex and interdependent processes. Renal endothelial cells contribute to vascular tone, regulation of blood flow to local tissue beds, modulation of coagulation and inflammation, and vascular permeability. Both ischemia and sepsis have profound effects on the renal endothelium, resulting in microvascular dysregulation resulting in continued ischemia and further injury. In recent years, the concept of the vascular endothelium as an organ that is both the source of and target for inflammatory injury has become widely appreciated. Here we revisit the renal endothelium in the light of ever evolving molecular advances.
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Affiliation(s)
- Sudhanshu Kumar Verma
- Nephrology Division, Department of Medicine, Indiana University School of Medicine, The Roudebush VA Medical Center, Indiana Center for Biological Microscopy, Indianapolis, IN
| | - Bruce A Molitoris
- Nephrology Division, Department of Medicine, Indiana University School of Medicine, The Roudebush VA Medical Center, Indiana Center for Biological Microscopy, Indianapolis, IN.
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28
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Gonçalves MR, Johnson SP, Ramasawmy R, Pedley RB, Lythgoe MF, Walker-Samuel S. Decomposition of spontaneous fluctuations in tumour oxygenation using BOLD MRI and independent component analysis. Br J Cancer 2015; 113:1168-77. [PMID: 26484634 PMCID: PMC4647875 DOI: 10.1038/bjc.2015.270] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 05/26/2015] [Accepted: 06/29/2015] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Solid tumours can undergo cycles of hypoxia, followed by reoxygenation, which can have significant implications for the success of anticancer therapies. A need therefore exists to develop methods to aid its detection and to further characterise its biological basis. We present here a novel method for decomposing systemic and tumour-specific contributions to fluctuations in tumour deoxyhaemoglobin concentration, based on magnetic resonance imaging measurements. METHODS Fluctuations in deoxyhaemoglobin concentration in two tumour xenograft models of colorectal carcinoma were decomposed into distinct contributions using independent component analysis. These components were then correlated with systemic pulse oximetry measurements to assess the influence of systemic variations in blood oxygenation in tumours, compared with those that arise within the tumour itself (tumour-specific). Immunohistochemical staining was used to assess the physiological basis of each source of fluctuation. RESULTS Systemic fluctuations in blood oxygenation were found to contribute to cycling hypoxia in tumours, but tumour-specific fluctuations were also evident. Moreover, the size of the tumours was found to influence the degree of systemic, but not tumour-specific, oscillations. The degree of vessel maturation was related to the amplitude of tumour-specific, but not systemic, oscillations. CONCLUSIONS Our results provide further insights into the complexity of spontaneous fluctuations in tumour oxygenation and its relationship with tumour pathophysiology. These observations could be used to develop improved drug delivery strategies.
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Affiliation(s)
- Miguel R Gonçalves
- Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London WC1E 6DD, UK
| | - S Peter Johnson
- Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London WC1E 6DD, UK
- Cancer Institute, University College London, London WC1E 6DD, UK
| | - Rajiv Ramasawmy
- Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London WC1E 6DD, UK
| | - R Barbara Pedley
- Cancer Institute, University College London, London WC1E 6DD, UK
| | - Mark F Lythgoe
- Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London WC1E 6DD, UK
| | - Simon Walker-Samuel
- Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London WC1E 6DD, UK
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Wietecha MS, Król MJ, Michalczyk ER, Chen L, Gettins PG, DiPietro LA. Pigment epithelium-derived factor as a multifunctional regulator of wound healing. Am J Physiol Heart Circ Physiol 2015; 309:H812-26. [PMID: 26163443 DOI: 10.1152/ajpheart.00153.2015] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 07/08/2015] [Indexed: 01/12/2023]
Abstract
During dermal wound repair, hypoxia-driven proliferation results in dense but highly permeable, disorganized microvascular networks, similar to those in solid tumors. Concurrently, activated dermal fibroblasts generate an angiopermissive, provisional extracellular matrix (ECM). Unlike cancers, wounds naturally resolve via blood vessel regression and ECM maturation, which are essential for reestablishing tissue homeostasis. Mechanisms guiding wound resolution are poorly understood; one candidate regulator is pigment epithelium-derived factor (PEDF), a secreted glycoprotein. PEDF is a potent antiangiogenic in models of pathological angiogenesis and a promising cancer and cardiovascular disease therapeutic, but little is known about its physiological function. To examine the roles of PEDF in physiological wound repair, we used a reproducible model of excisional skin wound healing in BALB/c mice. We show that PEDF is abundant in unwounded and healing skin, is produced primarily by dermal fibroblasts, binds to resident microvascular endothelial cells, and accumulates in dermal ECM and epidermis. PEDF transcript and protein levels were low during the inflammatory and proliferative phases of healing but increased in quantity and colocalization with microvasculature during wound resolution. Local antibody inhibition of endogenous PEDF delayed vessel regression and collagen maturation during the remodeling phase. Treatment of wounds with intradermal injections of exogenous, recombinant PEDF inhibited nascent angiogenesis by repressing endothelial proliferation, promoted vascular integrity and function, and increased collagen maturity. These results demonstrate that PEDF contributes to the resolution of healing wounds by causing regression of immature blood vessels and stimulating maturation of the vascular microenvironment, thus promoting a return to tissue homeostasis after injury.
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Affiliation(s)
- Mateusz S Wietecha
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois; and
| | - Mateusz J Król
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois; and
| | - Elizabeth R Michalczyk
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois; and
| | - Lin Chen
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois; and
| | - Peter G Gettins
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois
| | - Luisa A DiPietro
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois; and
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OSM Enhances Angiogenesis and Improves Cardiac Function after Myocardial Infarction. BIOMED RESEARCH INTERNATIONAL 2015; 2015:317905. [PMID: 26146616 PMCID: PMC4471304 DOI: 10.1155/2015/317905] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 11/12/2014] [Accepted: 11/15/2014] [Indexed: 12/20/2022]
Abstract
Oncostatin M (OSM) has been reported to stimulate angiogenesis by upregulating VEGF and bFGF, implying that it could be a therapeutic strategy in treating ischemic diseases. The present study was aimed at investigating whether OSM could improve cardiac function via prompting angiogenesis following myocardial infarction (MI). Wild type (WT) and Oβ knock-out (Oβ−/−) mice were, respectively, randomized into sham group, MI + vehicle group, and MI + OSM group. WT mice displayed significantly impaired cardiac function after MI. OSM treatment attenuated cardiac dysfunction in WT MI mice, while Oβ deletion abrogated the protective effects. Besides, OSM attenuated heart hypertrophy and pulmonary congestion evidenced by decreased heart weight/body weight and lung weight/body weight ratio. Further, reduction of apoptosis and fibrosis in infarct border zone was observed in OSM treated WT MI mice compared with vehicle. Moreover, in WT mice subjected to MI, OSM treatment significantly increased capillary density along with upregulation of p-Akt and angiogenic factors VEGF and bFGF in comparison with vehicle, and this phenomenon was not found in Oβ−/− mice. In conclusion, OSM treatment preserved cardiac function, inhibited apoptosis and fibrosis, and stimulated angiogenesis via upregulating VEGF and bFGF in infarct border zone of ischemic myocardium, indicating that OSM could be a novel therapeutic target for MI.
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Combined effect of insulin-like growth factor-1 and CC chemokine ligand 2 on angiogenic events in endothelial cells. PLoS One 2015; 10:e0121249. [PMID: 25830234 PMCID: PMC4382320 DOI: 10.1371/journal.pone.0121249] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 01/29/2015] [Indexed: 12/31/2022] Open
Abstract
Therapeutic angiogenesis may be applied in medical conditions to promote stimulation of angiogenesis. Angiogenesis is a multistep process, which includes endothelial cell proliferation, migration, and tube formation, which is mediated by various angiogenic polypeptides. Thus, studies that elucidate the cellular mechanisms involved in these processes are necessary to develop novel therapeutic strategies. This study investigated the in vitro effects of the pro-angiogenic factors, insulin-like growth factor-1 (IGF-1) and/or chemokine (CC motif) ligand 2 (CCL2), on endothelial cells. Flow cytometry analysis showed that IGF-1 and CCL2 treatment did not interfere with IGF-1 receptor (IGF-1R) expression, but CCL2 treatment increased CCL2 receptor (CCR2) expression. Immunofluorescence analysis revealed that the IGF-1/CCL2 combination induced a greater increase in fibronectin deposition, but the treatments did not alter the expression of the fibronectin receptors, CD49e and CD44. The interaction of fibronectin with cytokines demonstrated that IGF-1/CCL2 promoted changes in intermediate F-actin remodeling that may result in increased endothelial cell adhesion and cell migration mediated by fibronectin. Furthermore, IGF-1/CCL2 stimulated endothelial cells, grown on fibronectin, to form capillary-like structures and intercellular lumina with greater luminal area. These data suggest that IGF-1/CCL2 combination and a fibronectin matrix may contribute to the angiogenesis process to stimulate adhesion, migration, and tube formation by endothelial cells as a result of F-actin remodeling.
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Quaresma JAS, Brito MV, Sousa JR, Silva LM, Hirai KE, Araujo RS, de Brito AC, Carneiro FRO, Fuzii HT, Pagliari C, Sotto MN, Duarte MIS. Analysis of microvasculature phenotype and endothelial activation markers in skin lesions of lacaziosis (Lobomycosis). Microb Pathog 2014; 78:29-36. [PMID: 25450888 DOI: 10.1016/j.micpath.2014.11.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 11/18/2014] [Accepted: 11/20/2014] [Indexed: 10/24/2022]
Abstract
Jorge Lobo's disease is a rare mycosis characterized by chronic inflammation, which causes skin lesions in the absence of visceral dissemination. The disease occurs mainly in hot and humid climates and most cases have been registered in the Brazilian Amazon region. This study investigated possible microvascular alterations in skin lesions caused by infection with Lacazia loboi which may interfere with the clinical progression of the disease. Immunohistochemistry was used to evaluate the density of blood and lymphatic vessels, as well as expression of the cell adhesion molecules ICAM-1, VCAM-1 and E-selectin. The results showed a reduced number of blood (62.66 ± 20.30 vessels/mm(2)) and lymphatic vessels (3.55 ± 5.84 vessels/mm(2)) in Jorge Lobo's disease when compared to control skin (169.66 ± 66.38 blood vessels/mm(2) and 8 ± 2.17 lymphatic vessels/mm(2)). There were a larger number of vessels expressing ICAM-1 (27.58 ± 15.32 vessels/mm(2)) and VCAM-1 (7.55 ± 6.2 vessels/mm(2)). No difference was observed in the expression of E-selectin (4.66 ± 11 vessels/mm(2)). Taken together, the results indicate changes in the local microvasculature which may interfere with the development of an efficient cell-mediated immune response and may explain restriction of the fungus to the site of injury.
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Affiliation(s)
- Juarez A S Quaresma
- Nucleo de Medicina Tropical, Universidade Federal do Para, Belem, PA, Brazil; Centro de Ciencias Biologicas e da Saude, Universidade do Estado do Para, Belem, PA, Brazil.
| | - Maysa V Brito
- Nucleo de Medicina Tropical, Universidade Federal do Para, Belem, PA, Brazil
| | - Jorge R Sousa
- Nucleo de Medicina Tropical, Universidade Federal do Para, Belem, PA, Brazil
| | - Luciana M Silva
- Centro de Ciencias Biologicas e da Saude, Universidade do Estado do Para, Belem, PA, Brazil
| | - Kelly E Hirai
- Centro de Ciencias Biologicas e da Saude, Universidade do Estado do Para, Belem, PA, Brazil
| | - Rafael S Araujo
- Centro de Ciencias Biologicas e da Saude, Universidade do Estado do Para, Belem, PA, Brazil
| | - Arival C de Brito
- Nucleo de Medicina Tropical, Universidade Federal do Para, Belem, PA, Brazil
| | - Francisca R O Carneiro
- Centro de Ciencias Biologicas e da Saude, Universidade do Estado do Para, Belem, PA, Brazil
| | - Hellen T Fuzii
- Nucleo de Medicina Tropical, Universidade Federal do Para, Belem, PA, Brazil
| | - Carla Pagliari
- Departamento de Patologia, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Mirian N Sotto
- Departamento de Patologia, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Maria I S Duarte
- Departamento de Patologia, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
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Seeger H, Braun N, Latus J, Alscher MD, Fritz P, Edenhofer I, Biegger D, Lindenmeier M, Wüthrich RP, Segerer S. Platelet-derived growth factor receptor-β expression in human peritoneum. Nephron Clin Pract 2014; 128:178-84. [PMID: 25376624 DOI: 10.1159/000368241] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 08/15/2014] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Simple peritoneal fibrosis and encapsulating peritoneal sclerosis (EPS) are important lesions in the peritoneum of patients on peritoneal dialysis (PD). We have previously described a population of podoplanin-positive myofibroblasts in peritoneal biopsies from patients with EPS. Platelet-derived growth factor receptor-β (PDGFRβ) is a marker of pericytes, and PDGFs might be involved in the fibrotic response of the peritoneum. This study aimed to describe PDGFRβ in the human peritoneum. METHODS In this retrospective analysis, we localized PDGFRβ in peritoneal biopsies from patients with EPS (n = 6) and patients on PD without signs of EPS (n = 5), and compared them with normal peritoneum (n = 4) and peritoneum from uremic patients (n = 5). Consecutive sections were stained for smooth-muscle actin (SMA) and podoplanin. Slides were scored semiquantitatively by 2 observers blinded to the diagnosis. RESULTS PDGFRβ was expressed by cells of arterial walls in all biopsies. A prominent population of PDGFRβ-positive cells was present in the normal peritoneum, which were SMA negative on consecutive sections. In patients on PD, a high number of PDGFRβ were also positive for SMA. In EPS, the majority of podoplanin-positive cells were positive for PDGFRβ. In peritoneal biopsies from normal and uremic patients, the expression of SMA was mainly restricted to cells of arterial walls. Podoplanin expression was restricted to lymphatic vessels in normal peritoneum, in uremic patients, and in patients on PD without EPS. CONCLUSIONS As podoplanin-positive myofibroblasts express PDGFRβ, these cells might be related to pericytes (rather than other sources of fibroblasts). PDGFRβ might turn out to be a therapeutic target in EPS.
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Affiliation(s)
- Harald Seeger
- Division of Nephrology, University Hospital, University of Zurich, Zurich, Switzerland
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Welti J, Loges S, Dimmeler S, Carmeliet P. Recent molecular discoveries in angiogenesis and antiangiogenic therapies in cancer. J Clin Invest 2013; 123:3190-200. [PMID: 23908119 DOI: 10.1172/jci70212] [Citation(s) in RCA: 455] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Four decades ago, angiogenesis was recognized as a therapeutic target for blocking cancer growth. Because of its importance, VEGF has been at the center stage of antiangiogenic therapy. Now, several years after FDA approval of an anti-VEGF antibody as the first antiangiogenic agent, many patients with cancer and ocular neovascularization have benefited from VEGF-targeted therapy; however, this anticancer strategy is challenged by insufficient efficacy, intrinsic refractoriness, and resistance. Here, we examine recent discoveries of new mechanisms underlying angiogenesis, discuss successes and challenges of current antiangiogenic therapy, and highlight emerging antiangiogenic paradigms.
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Affiliation(s)
- Jonathan Welti
- Vesalius Research Center, University of Leuven, Leuven, Belgium
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