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Rossi E, Bernabeu C. Novel vascular roles of human endoglin in pathophysiology. J Thromb Haemost 2023; 21:2327-2338. [PMID: 37315795 DOI: 10.1016/j.jtha.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/19/2023] [Accepted: 06/02/2023] [Indexed: 06/16/2023]
Abstract
Endoglin, alias CD105, is a human membrane glycoprotein highly expressed in vascular endothelial cells. It is involved in angiogenesis and angiogenesis-related diseases, including the rare vascular pathology known as hereditary hemorrhagic telangiectasia type 1. Although endoglin acts as an accessory receptor for members of the transforming growth factor-β family, in recent years, emerging evidence has shown a novel functional role for this protein beyond the transforming growth factor-β system. In fact, endoglin has been found to be an integrin counterreceptor involved in endothelial cell adhesion processes during pathological inflammatory conditions and primary hemostasis. Furthermore, a circulating form of endoglin, also named as soluble endoglin, whose levels are abnormally increased in different pathological conditions, such as preeclampsia, seems to act as an antagonist of membrane-bound endoglin and as a competitor of the fibrinogen-integrin interaction in platelet-dependent thrombus formation. These studies suggest that membrane-bound endoglin and circulating endoglin are important components involved in vascular homeostasis and hemostasis.
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Affiliation(s)
- Elisa Rossi
- Université Paris Cité, INSERM U1140, Innovative Therapies in Haemostasis, Paris, France.
| | - Carmelo Bernabeu
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
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2
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Jiménez-Dinamarca I, Prado Y, Tapia P, Gatica S, Alt C, Lin CP, Reyes-Martínez C, Feijóo CG, Aravena C, González-Canacer A, Correa S, Varela D, Cabello-Verrugio C, Simon F. Disseminated intravascular coagulation phenotype is regulated by the TRPM7 channel during sepsis. Biol Res 2023; 56:8. [PMID: 36869357 PMCID: PMC9983216 DOI: 10.1186/s40659-023-00419-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/13/2023] [Indexed: 03/05/2023] Open
Abstract
BACKGROUND Sepsis is an uncontrolled inflammatory response against a systemic infection that results in elevated mortality, mainly induced by bacterial products known as endotoxins, producing endotoxemia. Disseminated intravascular coagulation (DIC) is frequently observed in septic patients and is associated with organ failure and death. Sepsis activates endothelial cells (ECs), promoting a prothrombotic phenotype contributing to DIC. Ion channel-mediated calcium permeability participates in coagulation. The transient reception potential melastatin 7 (TRPM7) non-selective divalent cation channel that also contains an α-kinase domain, which is permeable to divalent cations including Ca2+, regulates endotoxin-stimulated calcium permeability in ECs and is associated with increased mortality in septic patients. However, whether endothelial TRPM7 mediates endotoxemia-induced coagulation is not known. Therefore, our aim was to examine if TRPM7 mediates coagulation during endotoxemia. RESULTS The results showed that TRPM7 regulated endotoxin-induced platelet and neutrophil adhesion to ECs, dependent on the TRPM7 ion channel activity and by the α-kinase function. Endotoxic animals showed that TRPM7 mediated neutrophil rolling on blood vessels and intravascular coagulation. TRPM7 mediated the increased expression of the adhesion proteins, von Willebrand factor (vWF), intercellular adhesion molecule 1 (ICAM-1), and P-selectin, which were also mediated by the TRPM7 α-kinase function. Notably, endotoxin-induced expression of vWF, ICAM-1 and P-selectin were required for endotoxin-induced platelet and neutrophil adhesion to ECs. Endotoxemic rats showed increased endothelial TRPM7 expression associated with a procoagulant phenotype, liver and kidney dysfunction, increased death events and an increased relative risk of death. Interestingly, circulating ECs (CECs) from septic shock patients (SSPs) showed increased TRPM7 expression associated with increased DIC scores and decreased survival times. Additionally, SSPs with a high expression of TRPM7 in CECs showed increased mortality and relative risk of death. Notably, CECs from SSPs showed significant results from the AUROC analyses for predicting mortality in SSPs that were better than the Acute Physiology and Chronic Health Evaluation II (APACHE II) and the Sequential Organ Failure Assessment (SOFA) scores. CONCLUSIONS Our study demonstrates that sepsis-induced DIC is mediated by TRPM7 in ECs. TRPM7 ion channel activity and α-kinase function are required by DIC-mediated sepsis-induced organ dysfunction and its expression are associated with increased mortality during sepsis. TRPM7 appears as a new prognostic biomarker to predict mortality associated to DIC in SSPs, and as a novel target for drug development against DIC during infectious inflammatory diseases.
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Affiliation(s)
- Ivanka Jiménez-Dinamarca
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Republica 330, 8370186, Santiago, Chile
| | - Yolanda Prado
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Republica 330, 8370186, Santiago, Chile.,Millennium Institute On Immunology and Immunotherapy, Santiago, Chile
| | - Pablo Tapia
- Unidad de Paciente Crítico Adulto, Hospital Clínico La Florida, Santiago, Chile
| | - Sebastian Gatica
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Republica 330, 8370186, Santiago, Chile.,Millennium Institute On Immunology and Immunotherapy, Santiago, Chile
| | - Clemens Alt
- Center for Systems Biology and Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Charles P Lin
- Center for Systems Biology and Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Cristian Reyes-Martínez
- Fish Immunology Laboratory, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
| | - Carmen G Feijóo
- Fish Immunology Laboratory, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
| | - Cristobal Aravena
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Republica 330, 8370186, Santiago, Chile
| | - Alejandra González-Canacer
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Republica 330, 8370186, Santiago, Chile
| | - Simón Correa
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Republica 330, 8370186, Santiago, Chile
| | - Diego Varela
- Programa de Fisiología Y Biofísica, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile.,Millennium Nucleus of Ion Channel-Associated Diseases, Santiago, Chile
| | - Claudio Cabello-Verrugio
- Millennium Institute On Immunology and Immunotherapy, Santiago, Chile. .,Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Republica 330, 8370186, Santiago, Chile. .,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile.
| | - Felipe Simon
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Republica 330, 8370186, Santiago, Chile. .,Millennium Institute On Immunology and Immunotherapy, Santiago, Chile. .,Millennium Nucleus of Ion Channel-Associated Diseases, Santiago, Chile.
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Proteomic Analysis of Chicken Chorioallantoic Membrane (CAM) during Embryonic Development Provides Functional Insight. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7813921. [PMID: 35774275 PMCID: PMC9237712 DOI: 10.1155/2022/7813921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/10/2022] [Accepted: 05/20/2022] [Indexed: 11/18/2022]
Abstract
In oviparous animals, the egg contains all resources required for embryonic development. The chorioallantoic membrane (CAM) is a placenta-like structure produced by the embryo for acid-base balance, respiration, and calcium solubilization from the eggshell for bone mineralization. The CAM is a valuable in vivo model in cancer research for development of drug delivery systems and has been used to study tissue grafts, tumor metastasis, toxicology, angiogenesis, and assessment of bacterial invasion. However, the protein constituents involved in different CAM functions are poorly understood. Therefore, we have characterized the CAM proteome at two stages of development (ED12 and ED19) and assessed the contribution of the embryonic blood serum (EBS) proteome to identify CAM-unique proteins. LC/MS/MS-based proteomics allowed the identification of 1470, 1445, and 791 proteins in CAM (ED12), CAM (ED19), and EBS, respectively. In total, 1796 unique proteins were identified. Of these, 175 (ED12), 177 (ED19), and 105 (EBS) were specific to these stages/compartments. This study attributed specific CAM protein constituents to functions such as calcium ion transport, gas exchange, vasculature development, and chemical protection against invading pathogens. Defining the complex nature of the CAM proteome provides a crucial basis to expand its biomedical applications for pharmaceutical and cancer research.
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Soluble Endoglin Stimulates Inflammatory and Angiogenic Responses in Microglia That Are Associated with Endothelial Dysfunction. Int J Mol Sci 2022; 23:ijms23031225. [PMID: 35163148 PMCID: PMC8835690 DOI: 10.3390/ijms23031225] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/16/2022] [Accepted: 01/19/2022] [Indexed: 02/06/2023] Open
Abstract
Increased soluble endoglin (sENG) has been observed in human brain arteriovenous malformations (bAVMs). In addition, the overexpression of sENG in concurrence with vascular endothelial growth factor (VEGF)-A has been shown to induce dysplastic vessel formation in mouse brains. However, the underlying mechanism of sENG-induced vascular malformations is not clear. The evidence suggests the role of sENG as a pro-inflammatory modulator, and increased microglial accumulation and inflammation have been observed in bAVMs. Therefore, we hypothesized that microglia mediate sENG-induced inflammation and endothelial cell (EC) dysfunction in bAVMs. In this study, we confirmed that the presence of sENG along with VEGF-A overexpression induced dysplastic vessel formation. Remarkably, we observed increased microglial activation around dysplastic vessels with the expression of NLRP3, an inflammasome marker. We found that sENG increased the gene expression of VEGF-A, pro-inflammatory cytokines/inflammasome mediators (TNF-α, IL-6, NLRP3, ASC, Caspase-1, and IL-1β), and proteolytic enzyme (MMP-9) in BV2 microglia. The conditioned media from sENG-treated BV2 (BV2-sENG-CM) significantly increased levels of angiogenic factors (Notch-1 and TGFβ) and pERK1/2 in ECs but it decreased the level of IL-17RD, an anti-angiogenic mediator. Finally, the BV2-sENG-CM significantly increased EC migration and tube formation. Together, our study demonstrates that sENG provokes microglia to express angiogenic/inflammatory molecules which may be involved in EC dysfunction. Our study corroborates the contribution of microglia to the pathology of sENG-associated vascular malformations.
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Kulikauskas MR, X S, Bautch VL. The versatility and paradox of BMP signaling in endothelial cell behaviors and blood vessel function. Cell Mol Life Sci 2022; 79:77. [PMID: 35044529 PMCID: PMC8770421 DOI: 10.1007/s00018-021-04033-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 10/20/2021] [Accepted: 11/09/2021] [Indexed: 12/15/2022]
Abstract
Blood vessels expand via sprouting angiogenesis, and this process involves numerous endothelial cell behaviors, such as collective migration, proliferation, cell–cell junction rearrangements, and anastomosis and lumen formation. Subsequently, blood vessels remodel to form a hierarchical network that circulates blood and delivers oxygen and nutrients to tissue. During this time, endothelial cells become quiescent and form a barrier between blood and tissues that regulates transport of liquids and solutes. Bone morphogenetic protein (BMP) signaling regulates both proangiogenic and homeostatic endothelial cell behaviors as blood vessels form and mature. Almost 30 years ago, human pedigrees linked BMP signaling to diseases associated with blood vessel hemorrhage and shunts, and recent work greatly expanded our knowledge of the players and the effects of vascular BMP signaling. Despite these gains, there remain paradoxes and questions, especially with respect to how and where the different and opposing BMP signaling outputs are regulated. This review examines endothelial cell BMP signaling in vitro and in vivo and discusses the paradox of BMP signals that both destabilize and stabilize endothelial cell behaviors.
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Affiliation(s)
- Molly R Kulikauskas
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Shaka X
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Victoria L Bautch
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
- McAllister Heart Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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Pawlak JB, Blobe GC. TGF-β superfamily co-receptors in cancer. Dev Dyn 2022; 251:137-163. [PMID: 33797167 PMCID: PMC8484463 DOI: 10.1002/dvdy.338] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/17/2021] [Accepted: 03/22/2021] [Indexed: 01/03/2023] Open
Abstract
Transforming growth factor-β (TGF-β) superfamily signaling via their cognate receptors is frequently modified by TGF-β superfamily co-receptors. Signaling through SMAD-mediated pathways may be enhanced or depressed depending on the specific co-receptor and cell context. This dynamic effect on signaling is further modified by the release of many of the co-receptors from the membrane to generate soluble forms that are often antagonistic to the membrane-bound receptors. The co-receptors discussed here include TβRIII (betaglycan), endoglin, BAMBI, CD109, SCUBE proteins, neuropilins, Cripto-1, MuSK, and RGMs. Dysregulation of these co-receptors can lead to altered TGF-β superfamily signaling that contributes to the pathophysiology of many cancers through regulation of growth, metastatic potential, and the tumor microenvironment. Here we describe the role of several TGF-β superfamily co-receptors on TGF-β superfamily signaling and the impact on cellular and physiological functions with a particular focus on cancer, including a discussion on recent pharmacological advances and potential clinical applications targeting these co-receptors.
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Affiliation(s)
| | - Gerard C. Blobe
- Department of Medicine, Duke University Medical Center,Department of Pharmacology and Cancer Biology, Duke University Medical Center,Corresponding author: Gerard Blobe, B354 LSRC, Box 91004 DUMC, Durham, NC 27708, , 919-668-1352
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Ruiz-Llorente L, Vega MC, Fernández FJ, Langa C, Morrell NW, Upton PD, Bernabeu C. Generation of a Soluble Form of Human Endoglin Fused to Green Fluorescent Protein. Int J Mol Sci 2021; 22:ijms222011282. [PMID: 34681942 PMCID: PMC8539536 DOI: 10.3390/ijms222011282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 10/08/2021] [Accepted: 10/15/2021] [Indexed: 01/06/2023] Open
Abstract
Endoglin (Eng, CD105) is a type I membrane glycoprotein that functions in endothelial cells as an auxiliary receptor for transforming growth factor β (TGF-β)/bone morphogenetic protein (BMP) family members and as an integrin ligand, modulating the vascular pathophysiology. Besides the membrane-bound endoglin, there is a soluble form of endoglin (sEng) that can be generated by the action of the matrix metalloproteinase (MMP)-14 or -12 on the juxtamembrane region of its ectodomain. High levels of sEng have been reported in patients with preeclampsia, hypercholesterolemia, atherosclerosis and cancer. In addition, sEng is a marker of cardiovascular damage in patients with hypertension and diabetes, plays a pathogenic role in preeclampsia, and inhibits angiogenesis and tumor proliferation, migration, and invasion in cancer. However, the mechanisms of action of sEng have not yet been elucidated, and new tools and experimental approaches are necessary to advance in this field. To this end, we aimed to obtain a fluorescent form of sEng as a new tool for biological imaging. Thus, we cloned the extracellular domain of endoglin in the pEGFP-N1 plasmid to generate a fusion protein with green fluorescent protein (GFP), giving rise to pEGFP-N1/Eng.EC. The recombinant fusion protein was characterized by transient and stable transfections in CHO-K1 cells using fluorescence microscopy, SDS-PAGE, immunodetection, and ELISA techniques. Upon transfection with pEGFP-N1/Eng.EC, fluorescence was readily detected in cells, indicating that the GFP contained in the recombinant protein was properly folded into the cytosol. Furthermore, as evidenced by Western blot analysis, the secreted fusion protein yielded the expected molecular mass and displayed a specific fluorescent signal. The fusion protein was also able to bind to BMP9 and BMP10 in vitro. Therefore, the construct described here could be used as a tool for functional in vitro studies of the extracellular domain of endoglin.
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Affiliation(s)
- Lidia Ruiz-Llorente
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (L.R.-L.); (M.C.V.); (F.J.F.); (C.L.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040 Madrid, Spain
- Biochemistry and Molecular Biology Unit, Department of System Biology, School of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain
| | - M. Cristina Vega
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (L.R.-L.); (M.C.V.); (F.J.F.); (C.L.)
| | - Francisco J. Fernández
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (L.R.-L.); (M.C.V.); (F.J.F.); (C.L.)
| | - Carmen Langa
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (L.R.-L.); (M.C.V.); (F.J.F.); (C.L.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040 Madrid, Spain
| | - Nicholas W. Morrell
- Department of Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK; (N.W.M.); (P.D.U.)
| | - Paul D. Upton
- Department of Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK; (N.W.M.); (P.D.U.)
| | - Carmelo Bernabeu
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (L.R.-L.); (M.C.V.); (F.J.F.); (C.L.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040 Madrid, Spain
- Correspondence:
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Xie S, Hou X, Yang W, Shi W, Yang X, Duan S, Mo F, Liu A, Wang W, Lu X. Endoglin-Aptamer-Functionalized Liposome-Equipped PD-1-Silenced T Cells Enhance Antitumoral Immunotherapeutic Effects. Int J Nanomedicine 2021; 16:6017-6034. [PMID: 34511903 PMCID: PMC8418331 DOI: 10.2147/ijn.s317220] [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: 04/28/2021] [Accepted: 08/11/2021] [Indexed: 12/25/2022] Open
Abstract
Background The broader application of adoptive cell therapy (ACT) in cancer immunotherapies (particularly for solid tumors) has always been limited by the immunosuppressive tumor microenvironment (TME) and the insufficient targetability of effector T cells, resulting in unsatisfied therapeutic outcome. Here, we designed a new strategy by using aptamer-based immunoliposomes to modify PD-1-silencing T cells, which were activated by dendritic cell (DC)/tumor fusion cells (FCs) to improve the antitumor potency of cytotoxic T lymphocytes (CTLs/CD8+ T cells). Methods PD-1 gene was knocked out from CD8+ T cells using CRISPR/Cas9 system to liberate T cell activity from immunosuppression. The PD-1− T cells were stimulated with DC/tumor FCs, followed by further functional modification of tumor-specific nanoliposomes (hEnd-Apt/CD3-Lipo) to generate FC/PD-1− CTLs. The activation and proliferation and specificity of the modified FC/PD-1− CTLs were measured. The antitumor activity of these CTLs against HepG2-tumors was evaluated in xenograft NOD/SCID mice, and the antitumor mechanism was investigated based on tissue immunohistochemistry and serum ELISA. Results Our results indicated that the modification of hEnd-Apt/CD3-Lipo nanocomposites on the FC/PD-1− CTLs had a more substantial synergetic effect in inhibiting tumor growth and prolonging animal survival, rather than other control liposomes. Furthermore, the hEnd-Apt/CD3-Lipo-modified FC/PD-1− CTLs showed a stronger antitumor outcome in the tumor-bearing mouse model, through the mechanisms of suppressing tumor cell proliferation, promoting tumor apoptosis, reducing angiogenesis but increasing the infiltration of the FC/PD-1− CTLs in the tumor tissue, as well as upregulating the systemic levels of IFN-γ, IL-2, TNF-α and IL-6 cytokines, by comparison of the control settings. Conclusion In sum, our investigation suggests an enhancement of antitumor effect by the surface modification of endoglin-targeting nanoliposomes upon DC/tumor FC-activated PD-1− CTLs, therefore, provides a new tumoral endoglin-targeted approach as a promising strategy to reduce immunosuppression of tumor microenvironment and improve the immunotherapeutic outcome of anticancer ACT.
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Affiliation(s)
- Shenxia Xie
- School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Xiaoqiong Hou
- School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,International Nanobody Research Center of Guangxi, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Wei Yang
- School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,International Nanobody Research Center of Guangxi, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Wei Shi
- School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,International Nanobody Research Center of Guangxi, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Xiaomei Yang
- School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,International Nanobody Research Center of Guangxi, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Siliang Duan
- International Nanobody Research Center of Guangxi, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Fengzhen Mo
- International Nanobody Research Center of Guangxi, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Aiqun Liu
- International Nanobody Research Center of Guangxi, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Wu Wang
- School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,Laboratory of Tropical Biomedicine and Biotechnology, School of Tropical Medicine and Laboratory Medicine, Hainan Medical University, Haikou, Hainan, 571101, People's Republic of China
| | - Xiaoling Lu
- School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,International Nanobody Research Center of Guangxi, Guangxi Medical University, Nanning, Guangxi, People's Republic of China.,College of Stomatology, Guangxi Medical University, Nanning, Guangxi, People's Republic of China
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Rossi E, Kauskot A, Saller F, Frezza E, Poirault-Chassac S, Lokajczyk A, Bourdoncle P, Saubaméa B, Gaussem P, Pericacho M, Bobe R, Bachelot-Loza C, Pasquali S, Bernabeu C, Smadja DM. Endoglin Is an Endothelial Housekeeper against Inflammation: Insight in ECFC-Related Permeability through LIMK/Cofilin Pathway. Int J Mol Sci 2021; 22:ijms22168837. [PMID: 34445542 PMCID: PMC8396367 DOI: 10.3390/ijms22168837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/04/2021] [Accepted: 08/12/2021] [Indexed: 11/16/2022] Open
Abstract
Endoglin (Eng) is an endothelial cell (EC) transmembrane glycoprotein involved in adhesion and angiogenesis. Eng mutations result in vessel abnormalities as observed in hereditary hemorrhagic telangiectasia of type 1. The role of Eng was investigated in endothelial functions and permeability under inflammatory conditions, focusing on the actin dynamic signaling pathway. Endothelial Colony-Forming Cells (ECFC) from human cord blood and mouse lung/aortic EC (MLEC, MAEC) from Eng+/+ and Eng+/- mice were used. ECFC silenced for Eng with Eng-siRNA and ctr-siRNA were used to test tubulogenesis and permeability +/- TNFα and +/- LIM kinase inhibitors (LIMKi). In silico modeling of TNFα-Eng interactions was carried out from PDB IDs 5HZW and 5HZV. Calcium ions (Ca2+) flux was studied by Oregon Green 488 in epifluorescence microscopy. Levels of cofilin phosphorylation and tubulin post-translational modifications were evaluated by Western blot. F-actin and actin-tubulin distribution/co-localization were evaluated in cells by confocal microscopy. Eng silencing in ECFCs resulted in a decrease of cell sprouting by 50 ± 15% (p < 0.05) and an increase in pseudo-tube width (41 ± 4.5%; p < 0.001) compared to control. Upon TNFα stimulation, ECFC Eng-siRNA displayed a significant higher permeability compared to ctr-siRNA (p < 0.01), which is associated to a higher Ca2+ mobilization (p < 0.01). Computational analysis suggested that Eng mitigated TNFα activity. F-actin polymerization was significantly increased in ECFC Eng-siRNA, MAEC+/-, and MLEC+/- compared to controls (p < 0.001, p < 0.01, and p < 0.01, respectively) as well as actin/tubulin distribution (p < 0.01). Furthermore, the inactive form of cofilin (P-cofilin at Ser3) was significantly decreased by 36.7 ± 4.8% in ECFC Eng-siRNA compared to ctr-siRNA (p < 0.001). Interestingly, LIMKi reproduced the absence of Eng on TNFα-induced ECFC-increased permeability. Our data suggest that Eng plays a critical role in the homeostasis regulation of endothelial cells under inflammatory conditions (TNFα), and loss of Eng influences ECFC-related permeability through the LIMK/cofilin/actin rearrangement-signaling pathway.
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Affiliation(s)
- Elisa Rossi
- Faculty of Pharmacy, University of Paris, F-75006 Paris, France; (E.F.); (S.P.-C.); (A.L.); (B.S.); (P.G.); (C.B.-L.); (S.P.); (D.M.S.)
- IThEM, Inserm UMR-S 1140, F-75006 Paris, France
- Correspondence:
| | - Alexandre Kauskot
- HITh, UMR-S 1176, INSERM—Faculty of Medicine, University Paris-Saclay, F-94270 Le Kremlin-Bicêtre, France; (A.K.); (F.S.); (R.B.)
| | - François Saller
- HITh, UMR-S 1176, INSERM—Faculty of Medicine, University Paris-Saclay, F-94270 Le Kremlin-Bicêtre, France; (A.K.); (F.S.); (R.B.)
| | - Elisa Frezza
- Faculty of Pharmacy, University of Paris, F-75006 Paris, France; (E.F.); (S.P.-C.); (A.L.); (B.S.); (P.G.); (C.B.-L.); (S.P.); (D.M.S.)
- CiTCoM, CNRS, Université de Paris, F-75006 Paris, France
| | - Sonia Poirault-Chassac
- Faculty of Pharmacy, University of Paris, F-75006 Paris, France; (E.F.); (S.P.-C.); (A.L.); (B.S.); (P.G.); (C.B.-L.); (S.P.); (D.M.S.)
- IThEM, Inserm UMR-S 1140, F-75006 Paris, France
| | - Anna Lokajczyk
- Faculty of Pharmacy, University of Paris, F-75006 Paris, France; (E.F.); (S.P.-C.); (A.L.); (B.S.); (P.G.); (C.B.-L.); (S.P.); (D.M.S.)
- IThEM, Inserm UMR-S 1140, F-75006 Paris, France
| | - Pierre Bourdoncle
- Plate-Forme IMAG’IC Institut Cochin Inserm U1016-CNRS UMR8104, Université Paris Descartes, F-75006 Paris, France;
| | - Bruno Saubaméa
- Faculty of Pharmacy, University of Paris, F-75006 Paris, France; (E.F.); (S.P.-C.); (A.L.); (B.S.); (P.G.); (C.B.-L.); (S.P.); (D.M.S.)
- UMR-S 1144, F-75006 Paris, France
| | - Pascale Gaussem
- Faculty of Pharmacy, University of Paris, F-75006 Paris, France; (E.F.); (S.P.-C.); (A.L.); (B.S.); (P.G.); (C.B.-L.); (S.P.); (D.M.S.)
- IThEM, Inserm UMR-S 1140, F-75006 Paris, France
- AP-HP, Hematology Department, Hôpital Européen Georges Pompidou, F-75015 Paris, France
| | - Miguel Pericacho
- Department of Physiology and Pharmacology, Universidad de Salamanca, 37008 Salamanca, Spain;
| | - Regis Bobe
- HITh, UMR-S 1176, INSERM—Faculty of Medicine, University Paris-Saclay, F-94270 Le Kremlin-Bicêtre, France; (A.K.); (F.S.); (R.B.)
| | - Christilla Bachelot-Loza
- Faculty of Pharmacy, University of Paris, F-75006 Paris, France; (E.F.); (S.P.-C.); (A.L.); (B.S.); (P.G.); (C.B.-L.); (S.P.); (D.M.S.)
- IThEM, Inserm UMR-S 1140, F-75006 Paris, France
| | - Samuela Pasquali
- Faculty of Pharmacy, University of Paris, F-75006 Paris, France; (E.F.); (S.P.-C.); (A.L.); (B.S.); (P.G.); (C.B.-L.); (S.P.); (D.M.S.)
- CiTCoM, CNRS, Université de Paris, F-75006 Paris, France
| | - Carmelo Bernabeu
- Centro de Investigaciones Biológicas Margarita Salas, 28040 Madrid, Spain;
- Consejo Superior de Investigaciones Científicas (CSIC) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040 Madrid, Spain
| | - David M. Smadja
- Faculty of Pharmacy, University of Paris, F-75006 Paris, France; (E.F.); (S.P.-C.); (A.L.); (B.S.); (P.G.); (C.B.-L.); (S.P.); (D.M.S.)
- IThEM, Inserm UMR-S 1140, F-75006 Paris, France
- AP-HP, Hematology Department, Hôpital Européen Georges Pompidou, F-75015 Paris, France
- Biosurgical Research Lab (Carpentier Foundation), F-75000 Paris, France
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10
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Chico TJA, Kugler EC. Cerebrovascular development: mechanisms and experimental approaches. Cell Mol Life Sci 2021; 78:4377-4398. [PMID: 33688979 PMCID: PMC8164590 DOI: 10.1007/s00018-021-03790-1] [Citation(s) in RCA: 5] [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] [Received: 06/22/2020] [Revised: 02/04/2021] [Accepted: 02/12/2021] [Indexed: 12/13/2022]
Abstract
The cerebral vasculature plays a central role in human health and disease and possesses several unique anatomic, functional and molecular characteristics. Despite their importance, the mechanisms that determine cerebrovascular development are less well studied than other vascular territories. This is in part due to limitations of existing models and techniques for visualisation and manipulation of the cerebral vasculature. In this review we summarise the experimental approaches used to study the cerebral vessels and the mechanisms that contribute to their development.
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Affiliation(s)
- Timothy J A Chico
- Department of Infection, Immunity and Cardiovascular Disease, Medical School, University of Sheffield, Beech Hill Road, Sheffield, S10 2RX, UK.
- The Bateson Centre, Firth Court, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK.
- Insigneo Institute for in Silico Medicine, The Pam Liversidge Building, Sheffield, S1 3JD, UK.
| | - Elisabeth C Kugler
- Department of Infection, Immunity and Cardiovascular Disease, Medical School, University of Sheffield, Beech Hill Road, Sheffield, S10 2RX, UK.
- The Bateson Centre, Firth Court, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK.
- Insigneo Institute for in Silico Medicine, The Pam Liversidge Building, Sheffield, S1 3JD, UK.
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11
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Galaziou A, Filidou E, Spathakis M, Arvanitidis K, Arzou BC, Galazios G, Koutlaki N, Nikolettos N, Kolios G. Imbalance of growth factors mRNA expression associated with oxidative stress in the early pregnancy loss. J Matern Fetal Neonatal Med 2021; 35:6150-6156. [PMID: 33820497 DOI: 10.1080/14767058.2021.1907337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The aim of this study was to examine the role of growth factors associated with angiogenesis and oxidative stress in the pathogenesis of spontaneous miscarriage. METHODS We performed a comparative mRNA expression analysis of VEGF, PlGF, Flt-1, Angiogenin and Endoglin using Real-Time PCR, in the placenta and decidua collected from 12 patients presenting with spontaneous abortion and from 14 women undergoing induced abortion, during the first and second trimester of pregnancy. RESULTS The mRNA expression of Flt-1 was significantly upregulated in the placenta of spontaneous abortions (5.17-fold, IQR: 2.72-9.11, p < 0.01). The placental expression of the soluble isoforms of Flt-1, sFlt-1 e15a and sFlt-1 i13, was also significantly upregulated in spontaneous abortions (sFlt-1 e15a: 2.35-fold, IQR: 0.98-2.83, p < 0.01; sFlt-1 i13: 3.47-fold, IQR: 2.37-5.08, p < 0,05). Placental tmFlt-1, PlGF and Endoglin showed a tendency of higher expression levels in spontaneous abortions, although they did not reach statistical significance (tmFlt-1: 7.42-fold, IQR: 3.58-14.32; PlGF: 2.36-fold, IQR: 0.90-4.12; Endoglin: 1.97-fold, IQR: 1.18-2.43). VEGF and Angiogenin mRNA expression in induced, as well as in spontaneous abortions, did not convey any statistically significant difference. In the decidua, the expression levels of Flt-1 and its splice variants sFlt-1 e15a, sFlt-1 i13 and tmFlt-1 did not show any statistically significant differences, as was the case for the rest of the herein examined growth factors. CONCLUSIONS In this study, we observed higher levels of sFlt-1 mRNA expression in the placenta of spontaneous abortions, while expression of other growth factors in placenta and decidua remained constant. This suggests that an imbalance of sFlt-1 expression in the placenta might contribute to the pathogenesis of spontaneous abortion, probably via oxidative stress, providing a possible biomarker for prompt identification of this condition.
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Affiliation(s)
- Aspasia Galaziou
- Department of Obstetrics and Gynecology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis
| | - Eirini Filidou
- Laboratory of Pharmacology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Michail Spathakis
- Laboratory of Pharmacology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Konstantinos Arvanitidis
- Laboratory of Pharmacology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Bourazan Chalil Arzou
- Department of Obstetrics and Gynecology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis
| | - George Galazios
- Department of Obstetrics and Gynecology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis
| | - Nikoleta Koutlaki
- Department of Obstetrics and Gynecology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis
| | - Nikos Nikolettos
- Department of Obstetrics and Gynecology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis
| | - George Kolios
- Laboratory of Pharmacology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
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12
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Sokolov DI, Kozyreva AR, Markova KL, Mikhailova VA, Korenevskii AV, Miliutina YP, Balabas OA, Chepanov SV, Selkov SA. Microvesicles produced by monocytes affect the phenotype and functions of endothelial cells. AIMS ALLERGY AND IMMUNOLOGY 2021. [DOI: 10.3934/allergy.2021011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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13
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Healy V, O'Halloran PJ, Husien MB, Bolger C, Farrell M. Intermixed arteriovenous malformation and hemangioblastoma: case report and literature review. CNS Oncol 2020; 9:CNS66. [PMID: 33244995 PMCID: PMC7737198 DOI: 10.2217/cns-2020-0021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 10/27/2020] [Indexed: 12/14/2022] Open
Abstract
We report the third presentation of an intermixed arteriovenous malformation and hemangioblastoma. The rare occurrence of the diagnostic histologic features of both a neoplasm and vascular malformation in a single lesion is more common in gliomas, as angioglioma, and is termed an 'intermixed' lesion. We review the literature concerning the developmental biology of each lesion, and potential interplay in the formation of an intermixed vascular neoplasm and vascular malformation. The roles of cellular origin, genetic susceptibility, favourable microenvironment, altered local gene expression and key regulatory pathways are reviewed. Our review supports angiography and genetic profiling in intermixed lesions to inform management strategies. Consideration should be given to multimodality therapeutic interventions as required, including microsurgical resection, stereotactic radiosurgery and further research to exploit emerging molecular targets.
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Affiliation(s)
- Vincent Healy
- Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland
- Department of Neuroscience, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Philip J O'Halloran
- Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland
- Department of Neuroscience, Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | - Ciaran Bolger
- Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland
- Department of Neuroscience, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Michael Farrell
- Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland
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14
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Woo SJ, Park JY, Hong S, Kim YM, Park YH, Lee YE, Park KH. Inflammatory and Angiogenic Mediators in Amniotic Fluid Are Associated With the Development of Retinopathy of Prematurity in Preterm Infants. Invest Ophthalmol Vis Sci 2020; 61:42. [PMID: 32446247 PMCID: PMC7405804 DOI: 10.1167/iovs.61.5.42] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Purpose To investigate whether elevated levels of inflammatory/angiogenic and growth mediators in amniotic fluid (AF) and the presence of intra-amniotic infection are associated with the occurrence and progression of retinopathy of prematurity (ROP) in preterm infants. Methods This retrospective cohort study included 175 premature singleton infants who were born between 23+0 and 32+0 weeks. AF obtained via amniocentesis was cultured, and endoglin, endostatin, insulin-like growth factor-binding protein (IGFBP)-2, IGFBP-3, IGFBP-4, IL-6, IL-8, matrix metalloproteinase-8, matrix metalloproteinase-9, and vascular endothelial growth factor receptor-1 levels were assayed by ELISA. The primary outcome measures included the occurrence of any stage ROP, severe ROP (stage ≥3), and vision-threatening type 1 ROP requiring treatment. Results Multiple logistic regression analyses revealed that there are significant associations between elevated AF endoglin levels and ROP occurrence; between elevated AF endoglin, endostatin, and IGFBP-2 levels and severe ROP; and between high AF endoglin, IL-6, and IL-8 levels and vision-threatening ROP requiring treatment, after adjusting for potential postnatal confounders. Using stepwise regression analyses, antenatal prediction models based on these AF biomarkers and prenatal factors were developed for the ROP outcomes, which had good discriminatory power (area under the curves, 0.731–0.863). However, we found that intra-amniotic infection is not associated with ROP occurrence and progression. Conclusions Elevated levels of inflammatory (IL-6 and IL-8) and angiogenic (endoglin and IGFBP-2) mediators in the AF, but not the presence of intra-amniotic infection, are independently associated with the occurrence and progression of ROP in preterm infants. These findings suggest that the pathophysiologic events that predispose preterm neonates to ROP may begin before delivery.
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15
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Oxidative Stress and New Pathogenetic Mechanisms in Endothelial Dysfunction: Potential Diagnostic Biomarkers and Therapeutic Targets. J Clin Med 2020; 9:jcm9061995. [PMID: 32630452 PMCID: PMC7355625 DOI: 10.3390/jcm9061995] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/15/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular diseases (CVD), including heart and pathological circulatory conditions, are the world's leading cause of mortality and morbidity. Endothelial dysfunction involved in CVD pathogenesis is a trigger, or consequence, of oxidative stress and inflammation. Endothelial dysfunction is defined as a diminished production/availability of nitric oxide, with or without an imbalance between endothelium-derived contracting, and relaxing factors associated with a pro-inflammatory and prothrombotic status. Endothelial dysfunction-induced phenotypic changes include up-regulated expression of adhesion molecules and increased chemokine secretion, leukocyte adherence, cell permeability, low-density lipoprotein oxidation, platelet activation, and vascular smooth muscle cell proliferation and migration. Inflammation-induced oxidative stress results in an increased accumulation of reactive oxygen species (ROS), mainly derived from mitochondria. Excessive ROS production causes oxidation of macromolecules inducing cell apoptosis mediated by cytochrome-c release. Oxidation of mitochondrial cardiolipin loosens cytochrome-c binding, thus, favoring its cytosolic release and activation of the apoptotic cascade. Oxidative stress increases vascular permeability, promotes leukocyte adhesion, and induces alterations in endothelial signal transduction and redox-regulated transcription factors. Identification of new endothelial dysfunction-related oxidative stress markers represents a research goal for better prevention and therapy of CVD. New-generation therapeutic approaches based on carriers, gene therapy, cardiolipin stabilizer, and enzyme inhibitors have proved useful in clinical practice to counteract endothelial dysfunction. Experimental studies are in continuous development to discover new personalized treatments. Gene regulatory mechanisms, implicated in endothelial dysfunction, represent potential new targets for developing drugs able to prevent and counteract CVD-related endothelial dysfunction. Nevertheless, many challenges remain to overcome before these technologies and personalized therapeutic strategies can be used in CVD management.
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16
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Vitverova B, Najmanova I, Vicen M, Tripska K, Sa ICI, Hyspler R, Pericacho M, Nachtigal P. Long term effects of soluble endoglin and mild hypercholesterolemia in mice hearts. PLoS One 2020; 15:e0233725. [PMID: 32470058 PMCID: PMC7259503 DOI: 10.1371/journal.pone.0233725] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/11/2020] [Indexed: 01/15/2023] Open
Abstract
Soluble endoglin (sEng) released into the circulation was suggested to be related to cardiovascular based pathologies. It was demonstrated that a combination of high sEng levels and long-term exposure (six months) to high fat diet (HFD) resulted in aggravation of endothelial dysfunction in the aorta. Thus, in this study, we hypothesized that a similar experimental design would affect the heart morphology, TGFβ signaling, inflammation, fibrosis, oxidative stress and eNOS signaling in myocardium in transgenic mice overexpressing human sEng. Three-month-old female transgenic mice overexpressing human sEng in plasma (Sol-Eng+ high) and their age-matched littermates with low levels of human sEng (Sol-Eng+ low) were fed a high-fat diet containing 1.25% of cholesterol and 40% of fat for six months. A blood analysis was performed, and the heart samples were analyzed by qRT-PCR and Western blot. The results of this study showed no effects of sEng and HFD on myocardial morphology/hypertrophy/fibrosis. However, the expression of pSmad2/3 and p-eNOS was reduced in Sol-Eng+ high mice. On the other hand, sEng and HFD did not significantly affect the expression of selected members of TGFβ signaling (membrane endoglin, TGFβRII, ALK-5, ALK-1, Id-1, PAI-1), inflammation (VCAM-1, ICAM-1), oxidative stress (NQO1, HO-1) and heart remodeling (PDGFβ, COL1A1, β-MHC). In conclusion, the results of this study confirmed that sEng, even combined with a high-fat diet inducing hypercholesterolemia administered for six months, does not affect the structure of the heart with respect to hypertrophy, fibrosis, inflammation and oxidative stress. Interestingly, pSmad2/3/p-eNOS signaling was reduced in both the heart in this study and the aorta in the previous study, suggesting a possible alteration of NO metabolism caused by six months exposure to high sEng levels and HFD. Thus, we might conclude that sEng combined with a high-fat diet might be related to the alteration of NO production due to altered pSmad2/3/p-eNOS signaling in the heart and aorta.
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Affiliation(s)
- Barbora Vitverova
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Iveta Najmanova
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Matej Vicen
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Katarina Tripska
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Ivone Cristina Igreja Sa
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Radek Hyspler
- Centrum for Research and Development, University Hospital, Hradec Kralove, Czech Republic
| | - Miguel Pericacho
- Renal and Cardiovascular Research Unit, Department of Physiology and Pharmacology, University of Salamanca, and the Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain
| | - Petr Nachtigal
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
- * E-mail:
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17
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Gallardo-Vara E, Gamella-Pozuelo L, Perez-Roque L, Bartha JL, Garcia-Palmero I, Casal JI, López-Novoa JM, Pericacho M, Bernabeu C. Potential Role of Circulating Endoglin in Hypertension via the Upregulated Expression of BMP4. Cells 2020; 9:cells9040988. [PMID: 32316263 PMCID: PMC7226995 DOI: 10.3390/cells9040988] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/04/2020] [Accepted: 04/14/2020] [Indexed: 12/16/2022] Open
Abstract
Endoglin is a membrane glycoprotein primarily expressed by the vascular endothelium and involved in cardiovascular diseases. Upon the proteolytic processing of the membrane-bound protein, a circulating form of endoglin (soluble endoglin, sEng) can be released, and high levels of sEng have been observed in several endothelial-related pathological conditions, where it appears to contribute to endothelial dysfunction. Preeclampsia is a multisystem disorder of high prevalence in pregnant women characterized by the onset of high blood pressure and associated with increased levels of sEng. Although a pathogenic role for sEng involving hypertension has been reported in several animal models of preeclampsia, the exact molecular mechanisms implicated remain to be identified. To search for sEng-induced mediators of hypertension, we analyzed the protein secretome of human endothelial cells in the presence of sEng. We found that sEng induces the expression of BMP4 in endothelial cells, as evidenced by their proteomic signature, gene transcript levels, and BMP4 promoter activity. A mouse model of preeclampsia with high sEng plasma levels (sEng+) showed increased transcript levels of BMP4 in lungs, stomach, and duodenum, and increased circulating levels of BMP4, compared to those of control animals. In addition, after crossing female wild type with male sEng+ mice, hypertension appeared 18 days after mating, coinciding with the appearance of high plasma levels of BMP4. Also, serum levels of sEng and BMP4 were positively correlated in pregnant women with and without preeclampsia. Interestingly, sEng-induced arterial pressure elevation in sEng+ mice was abolished in the presence of the BMP4 inhibitor noggin, suggesting that BMP4 is a downstream mediator of sEng. These results provide a better understanding on the role of sEng in the physiopathology of preeclampsia and other cardiovascular diseases, where sEng levels are increased.
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Affiliation(s)
- Eunate Gallardo-Vara
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (E.G.-V.); (L.G.-P.); (I.G.-P.); (J.I.C.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040 Madrid, Spain
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06511, USA
| | - Luis Gamella-Pozuelo
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (E.G.-V.); (L.G.-P.); (I.G.-P.); (J.I.C.)
- Biomedical Research Institute of Salamanca (IBSAL) and Renal and Cardiovascular Physiopathology Unit, Department of Physiology and Pharmacology, University of Salamanca, 37007 Salamanca, Spain; (L.P.-R.); (J.M.L.-N.)
| | - Lucía Perez-Roque
- Biomedical Research Institute of Salamanca (IBSAL) and Renal and Cardiovascular Physiopathology Unit, Department of Physiology and Pharmacology, University of Salamanca, 37007 Salamanca, Spain; (L.P.-R.); (J.M.L.-N.)
| | - José L. Bartha
- Division of Obstetrics and Maternal and Fetal Medicine, University Hospital La Paz, 28046 Madrid, Spain;
| | - Irene Garcia-Palmero
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (E.G.-V.); (L.G.-P.); (I.G.-P.); (J.I.C.)
| | - J. Ignacio Casal
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (E.G.-V.); (L.G.-P.); (I.G.-P.); (J.I.C.)
| | - José M. López-Novoa
- Biomedical Research Institute of Salamanca (IBSAL) and Renal and Cardiovascular Physiopathology Unit, Department of Physiology and Pharmacology, University of Salamanca, 37007 Salamanca, Spain; (L.P.-R.); (J.M.L.-N.)
| | - Miguel Pericacho
- Biomedical Research Institute of Salamanca (IBSAL) and Renal and Cardiovascular Physiopathology Unit, Department of Physiology and Pharmacology, University of Salamanca, 37007 Salamanca, Spain; (L.P.-R.); (J.M.L.-N.)
- Correspondence: (M.P.); (C.B.)
| | - Carmelo Bernabeu
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain; (E.G.-V.); (L.G.-P.); (I.G.-P.); (J.I.C.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040 Madrid, Spain
- Correspondence: (M.P.); (C.B.)
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18
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Gallardo-Vara E, Ruiz-Llorente L, Casado-Vela J, Ruiz-Rodríguez MJ, López-Andrés N, Pattnaik AK, Quintanilla M, Bernabeu C. Endoglin Protein Interactome Profiling Identifies TRIM21 and Galectin-3 as New Binding Partners. Cells 2019; 8:cells8091082. [PMID: 31540324 PMCID: PMC6769930 DOI: 10.3390/cells8091082] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/07/2019] [Accepted: 09/07/2019] [Indexed: 12/15/2022] Open
Abstract
Endoglin is a 180-kDa glycoprotein receptor primarily expressed by the vascular endothelium and involved in cardiovascular disease and cancer. Heterozygous mutations in the endoglin gene (ENG) cause hereditary hemorrhagic telangiectasia type 1, a vascular disease that presents with nasal and gastrointestinal bleeding, skin and mucosa telangiectases, and arteriovenous malformations in internal organs. A circulating form of endoglin (alias soluble endoglin, sEng), proteolytically released from the membrane-bound protein, has been observed in several inflammation-related pathological conditions and appears to contribute to endothelial dysfunction and cancer development through unknown mechanisms. Membrane-bound endoglin is an auxiliary component of the TGF-β receptor complex and the extracellular region of endoglin has been shown to interact with types I and II TGF-β receptors, as well as with BMP9 and BMP10 ligands, both members of the TGF-β family. To search for novel protein interactors, we screened a microarray containing over 9000 unique human proteins using recombinant sEng as bait. We find that sEng binds with high affinity, at least, to 22 new proteins. Among these, we validated the interaction of endoglin with galectin-3, a secreted member of the lectin family with capacity to bind membrane glycoproteins, and with tripartite motif-containing protein 21 (TRIM21), an E3 ubiquitin-protein ligase. Using human endothelial cells and Chinese hamster ovary cells, we showed that endoglin co-immunoprecipitates and co-localizes with galectin-3 or TRIM21. These results open new research avenues on endoglin function and regulation.
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Affiliation(s)
- Eunate Gallardo-Vara
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040 Madrid, Spain; (E.G.-V.); (L.R.-L.)
| | - Lidia Ruiz-Llorente
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040 Madrid, Spain; (E.G.-V.); (L.R.-L.)
| | - Juan Casado-Vela
- Bioengineering and Aerospace Engineering Department, Universidad Carlos III and Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), Leganés, 28911 Madrid, Spain;
| | | | - Natalia López-Andrés
- Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, 31008 Pamplona, Spain;
| | - Asit K. Pattnaik
- School of Veterinary Medicine and Biomedical Sciences, and Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE 68583, USA;
| | - Miguel Quintanilla
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC), and Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM), 28029 Madrid, Spain
- Correspondence: (M.Q.); (C.B.)
| | - Carmelo Bernabeu
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28040 Madrid, Spain; (E.G.-V.); (L.R.-L.)
- Correspondence: (M.Q.); (C.B.)
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19
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Abstract
Endoglin (ENG) is a coreceptor of the transforming growth factor-β (TGFβ) family signaling complex, which is highly expressed on endothelial cells and plays a key role in angiogenesis. Its extracellular domain can be cleaved and released into the circulation as soluble ENG (sENG). High circulating levels of sENG contribute to the pathogenesis of preeclampsia (PE). Circulating bone morphogenetic protein 9 (BMP9), a vascular quiescence and endothelial-protective factor, binds sENG with high affinity, but how sENG participates in BMP9 signaling complexes is not fully resolved. sENG was thought to be a ligand trap for BMP9, preventing type II receptor binding and BMP9 signaling. Here we show that, despite cell-surface ENG being a dimer linked by disulfide bonds, sENG purified from human placenta and plasma from PE patients is primarily in a monomeric form. Incubating monomeric sENG with the circulating form of BMP9 (prodomain-bound form) in solution leads to the release of the prodomain and formation of a sENG:BMP9 complex. Furthermore, we demonstrate that binding of sENG to BMP9 does not inhibit BMP9 signaling. Indeed, the sENG:BMP9 complex signals with comparable potency and specificity to BMP9 on human primary endothelial cells. The full signaling activity of the sENG:BMP9 complex required transmembrane ENG. This study confirms that rather than being an inhibitory ligand trap, increased circulating sENG might preferentially direct BMP9 signaling via cell-surface ENG at the endothelium. This is important for understanding the role of sENG in the pathobiology of PE and other cardiovascular diseases.
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Meurer S, Wimmer AE, Leur EVD, Weiskirchen R. Endoglin Trafficking/Exosomal Targeting in Liver Cells Depends on N-Glycosylation. Cells 2019; 8:cells8090997. [PMID: 31466384 PMCID: PMC6769735 DOI: 10.3390/cells8090997] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 02/06/2023] Open
Abstract
Injury of the liver involves a wound healing partial reaction governed by hepatic stellate cells and portal fibroblasts. Individual members of the transforming growth factor-β (TGF-β) superfamily including TGF-β itself and bone morphogenetic proteins (BMP) exert diverse and partially opposing effects on pro-fibrogenic responses. Signaling by these ligands is mediated through binding to membrane integral receptors type I/type II. Binding and the outcome of signaling is critically modulated by Endoglin (Eng), a type III co-receptor. In order to learn more about trafficking of Eng in liver cells, we investigated the membranal subdomain localization of full-length (FL)-Eng. We could show that FL-Eng is enriched in Caveolin-1-containing sucrose gradient fractions. Since lipid rafts contribute to the pool of exosomes, we could consequently demonstrate for the first time that exosomes isolated from cultured primary hepatic stellate cells and its derivatives contain Eng. Moreover, via adenoviral overexpression, we demonstrate that all liver cells have the capacity to direct Eng to exosomes, irrespectively whether they express endogenous Eng or not. Finally, we demonstrate that block of N-glycosylation does not interfere with dimerization of the receptor, but abrogates the secretion of soluble Eng (sol-Eng) and prevents exosomal targeting of FL-Eng.
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Affiliation(s)
- Steffen Meurer
- RWTH University Hospital Aachen, Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, D-52074 Aachen, Germany.
| | - Almut Elisabeth Wimmer
- RWTH University Hospital Aachen, Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, D-52074 Aachen, Germany
| | - Eddy van de Leur
- RWTH University Hospital Aachen, Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, D-52074 Aachen, Germany
| | - Ralf Weiskirchen
- RWTH University Hospital Aachen, Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, D-52074 Aachen, Germany.
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Padayachee S, Moodley J, Naicker T. A Review of Angiogenic Imbalance in HIV-Infected Hypertensive Disorders of Pregnancy. Curr Hypertens Rep 2019; 21:69. [PMID: 31342170 DOI: 10.1007/s11906-019-0970-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW This review provides a comprehensive insight into the angiogenic profile of hypertensive and normotensive pregnancies compromised by HIV infection. Furthermore, we evaluate the economic implementation of the sFlt-1/PlGF ratio and review the reports on therapeutic apheresis in limiting sFlt-1 production. RECENT FINDINGS In preeclampsia, an increased expression of sFlt-1 triggers angiogenic imbalance. Women of African ancestry have high levels of angiogenic factors than other racial groups. The sFlt-1/PlGF ratio shows promise in the early assessment of preeclampsia, while sFlt-1 apheresis restores angiogenic imbalance. Studies suggest antiretroviral therapy does not impact the angiogenic shift in preeclampsia development. The angiogenic profile in pregnant women of different races influences preeclampsia development. Despite the opposing immune response in HIV infection and preeclampsia, the HIV tat protein strongly mimics vascular endothelial growth factor (VEGF); hence, it is plausible to assume that HIV infection may ameliorate the angiogenic imbalance in preeclampsia.
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MESH Headings
- Angiogenic Proteins/blood
- Angiogenic Proteins/physiology
- Biomarkers/blood
- Biomarkers/metabolism
- Blood Component Removal
- Female
- HIV Infections/blood
- HIV Infections/complications
- HIV Infections/physiopathology
- Humans
- Hypertension, Pregnancy-Induced/blood
- Hypertension, Pregnancy-Induced/physiopathology
- Hypertension, Pregnancy-Induced/therapy
- Membrane Proteins/blood
- Membrane Proteins/physiology
- Neovascularization, Pathologic/blood
- Neovascularization, Pathologic/physiopathology
- Neovascularization, Physiologic/physiology
- Pre-Eclampsia/blood
- Pre-Eclampsia/physiopathology
- Pre-Eclampsia/therapy
- Pregnancy
- Pregnancy Complications, Infectious/blood
- Pregnancy Complications, Infectious/physiopathology
- Vascular Endothelial Growth Factor A/blood
- Vascular Endothelial Growth Factor A/physiology
- Vascular Endothelial Growth Factor Receptor-1/blood
- Vascular Endothelial Growth Factor Receptor-1/physiology
- tat Gene Products, Human Immunodeficiency Virus/blood
- tat Gene Products, Human Immunodeficiency Virus/physiology
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Affiliation(s)
- Sayuri Padayachee
- Optics and Imaging Centre, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Private Bag 7, Congella, Durban, KwaZulu-Natal, 4013, South Africa.
| | - Jagidesa Moodley
- Women's Health and HIV Research Group, Department of Obstetrics and Gynecology, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Thajasvarie Naicker
- Optics and Imaging Centre, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Private Bag 7, Congella, Durban, KwaZulu-Natal, 4013, South Africa
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MMP-12, Secreted by Pro-Inflammatory Macrophages, Targets Endoglin in Human Macrophages and Endothelial Cells. Int J Mol Sci 2019; 20:ijms20123107. [PMID: 31242676 PMCID: PMC6627183 DOI: 10.3390/ijms20123107] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/07/2019] [Accepted: 06/18/2019] [Indexed: 12/18/2022] Open
Abstract
Upon inflammation, monocyte-derived macrophages (MΦ) infiltrate blood vessels to regulate several processes involved in vascular pathophysiology. However, little is known about the mediators involved. Macrophage polarization is crucial for a fast and efficient initial response (GM-MΦ) and a good resolution (M-MΦ) of the inflammatory process. The functional activity of polarized MΦ is exerted mainly through their secretome, which can target other cell types, including endothelial cells. Endoglin (CD105) is a cell surface receptor expressed by endothelial cells and MΦ that is markedly upregulated in inflammation and critically involved in angiogenesis. In addition, a soluble form of endoglin with anti-angiogenic activity has been described in inflammation-associated pathologies. The aim of this work was to identify components of the MΦ secretome involved in the shedding of soluble endoglin. We find that the GM-MΦ secretome contains metalloprotease 12 (MMP-12), a GM-MΦ specific marker that may account for the anti-angiogenic activity of the GM-MΦ secretome. Cell surface endoglin is present in both GM-MΦ and M-MΦ, but soluble endoglin is only detected in GM-MΦ culture supernatants. Moreover, MMP-12 is responsible for the shedding of soluble endoglin in vitro and in vivo by targeting membrane-bound endoglin in both MΦ and endothelial cells. These data demonstrate a direct correlation between GM-MΦ polarization, MMP-12, and soluble endoglin expression and function. By targeting endothelial cells, MMP-12 may represent a novel mediator involved in vascular homeostasis.
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