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Sunohara M, Morikawa S, Shimada K, Suzuki K. Spatiotemporal expression profiles of c-Mpl mRNA in the tooth germ: Comparative expression dynamics of vascularization-related genes. Ann Anat 2024; 253:152227. [PMID: 38336176 DOI: 10.1016/j.aanat.2024.152227] [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: 07/21/2023] [Revised: 12/06/2023] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Vascularization is an essential event for both embryonic organ development and tissue repair in adults. During mouse tooth development, endothelial cells migrate into dental papilla during the cap stage, and form blood vessels through angiogenesis. Megakaryocytes and/or platelets, as other hematopoietic cells, express angiogenic molecules and can promote angiogenesis in adult tissues. However, it remains unknown which cells are responsible for attracting and leading blood vessels through the dental papilla during tooth development. METHODS Here we analyzed the spatiotemporal expression of c-Mpl mRNA in developing molar teeth of fetal mice. Expression patterns were then compared with those of several markers of hematopoietic cells as well as of angiogenic elements including CD41, erythropoietin receptor, CD34, angiopoietin-1 (Ang-1), Tie-2, and vascular endothelial growth factor receptor2 (VEGFR2) through in situ hybridization or immunohistochemistry. RESULTS Cells expressing c-Mpl mRNA was found in several parts of the developing tooth germ, including the peridental mesenchyme, dental papilla, enamel organ, and dental lamina. This expression occurred in a spatiotemporally controlled fashion. CD41-expressing cells were not detected during tooth development. The spatiotemporal expression pattern of c-Mpl mRNA in the dental papilla was similar to that of Ang-1, which preceded invasion of endothelial cells. Eventually, at the early bell stage, the c-Mpl mRNA signal was detected in morphologically differentiating odontoblasts that accumulated in the periphery of the dental papilla along the inner enamel epithelium layer of the future cusp region. CONCLUSION During tooth development, several kinds of cells express c-Mpl mRNA in a spatiotemporally controlled fashion, including differentiating odontoblasts. We hypothesize that c-Mpl-expressing cells appearing in the forming dental papilla at the cap stage are odontoblast progenitor cells that migrate to the site of odontoblast differentiation. There they attract vascular endothelial cells into the forming dental papilla and lead cells toward the inner enamel epithelium layer through production of angiogenic molecules (e.g., Ang-1) during migration to the site of differentiation. C-Mpl may regulate apoptosis and/or proliferation of expressing cells in order to execute normal development of the tooth.
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Affiliation(s)
- Masataka Sunohara
- Department of Anatomy, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.
| | - Shigeru Morikawa
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kazuto Shimada
- Department of Anatomy, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - Kingo Suzuki
- Department of Anatomy, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
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Lei W, Xu H, Yao H, Li L, Wang M, Zhou X, Liu X. 5α-Hydroxycostic acid inhibits choroidal neovascularization in rats through a dual signalling pathway mediated by VEGF and angiopoietin 2. Mol Med 2023; 29:151. [PMID: 37914992 PMCID: PMC10621151 DOI: 10.1186/s10020-023-00674-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 05/30/2023] [Indexed: 11/03/2023] Open
Abstract
BACKGROUND 5α-Hydroxycostic acid is a eudemane sesquiterpene that is isolated from the natural plant, Laggera alata. It exerts anti-inflammatory and anti-angiogenic effects on human breast cancer cells, but its role and underlying mechanism in choroidal neovascularization (CNV) are still unclear. We conducted a study to verify that 5α-Hydroxycostic acid can inhibit the formation and leakage of CNV, and describe the possible dual pathway by which it exerts its inhibitory effects in this process. METHODS An in vitro model of choroidal neovascularization was established using VEGF164, while a rat model of choroidal neovascularization was established using a 532 nm laser. In both models, the effects of 5α-Hydroxycostic acid in vivo and in vitro were evaluated to determine its inhibitory effect on abnormal cell proliferation, migration and tubule formation, as well as its effect on pathological changes in choroidal tissues and the area of neovascularization leakage in rats. The levels of components in the VEGF/VEGFR and Ang2/Tie2 signaling pathways were measured in tissues and cells. RESULTS In vitro experiments have shown that 5α-Hydroxycostic acid can inhibit abnormal cell proliferation, migration and angiogenesis. Additionally, 5α-Hydroxycostic acid enhances cell adhesion by inhibiting the phosphorylation pathways of VEGFR2 and Tie2. In vivo experiments demonstrated that 5α-Hydroxycostic acid has a positive therapeutic effect on choroidal neovascularization in rats. It can effectively reduce vascular leakage, consistent with the results of the cell experiments. CONCLUSION 5α-Hydroxycostic acid can inhibit choroidal neovascularization by interfering with the VEGF- and Ang2/Tie2-related pathways, and it may be a good candidate drug for treating CNV.
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Affiliation(s)
- Wulong Lei
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, 400010, China
| | - Huan Xu
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, 400010, China
| | - Hao Yao
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, 400010, China
| | - Lanjiao Li
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Menglei Wang
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Xiyuan Zhou
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Xueqin Liu
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China.
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Xiaolin X, Xiaozhi L, Guoping H, Hongwei L, Jinkuo G, Xiyun B, Zhen T, Xiaofang M, Yanxia L, Na X, Chunyan Z, Rui G, Kuan W, Cheng Z, Cuancuan W, Mingyong L, Xinping D. Overfit deep neural network for predicting drug-target interactions. iScience 2023; 26:107646. [PMID: 37680476 PMCID: PMC10480310 DOI: 10.1016/j.isci.2023.107646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 06/28/2023] [Accepted: 08/11/2023] [Indexed: 09/09/2023] Open
Abstract
Drug-target interactions (DTIs) prediction is an important step in drug discovery. As traditional biological experiments or high-throughput screening are high cost and time-consuming, many deep learning models have been developed. Overfitting must be avoided when training deep learning models. We propose a simple framework, called OverfitDTI, for DTI prediction. In OverfitDTI, a deep neural network (DNN) model is overfit to sufficiently learn the features of the chemical space of drugs and the biological space of targets. The weights of trained DNN model form an implicit representation of the nonlinear relationship between drugs and targets. Performance of OverfitDTI on three public datasets showed that the overfit DNN models fit the nonlinear relationship with high accuracy. We identified fifteen compounds that interacted with TEK, a receptor tyrosine kinase contributing to vascular homeostasis, and the predicted AT9283 and dorsomorphin were experimentally demonstrated as inhibitors of TEK in human umbilical vein endothelial cells (HUVECs).
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Affiliation(s)
- Xiao Xiaolin
- Department of Cardiology, Tianjin Fifth Central Hospital, Tianjin, China
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- Central Laboratory, Tianjin Fifth Central Hospital, Tianjin, China
| | - Liu Xiaozhi
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- Central Laboratory, Tianjin Fifth Central Hospital, Tianjin, China
| | - He Guoping
- Geriatrics Department, Traditional Chinese Medicine Hospital of Binhai New Area, Tianjin, China
| | - Liu Hongwei
- School of Clinical Medicine, North China University of Science and Technology, Tangshan, Hebei, China
- Department of Anesthesiology, Tangshan Maternal and Child Health Hospital, Tangshan, Hebei, China
| | - Guo Jinkuo
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
| | - Bian Xiyun
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- Central Laboratory, Tianjin Fifth Central Hospital, Tianjin, China
| | - Tian Zhen
- Deepwater Technology Research Institute, China National Offshore Oil Corporation, Tianjin, China
| | - Ma Xiaofang
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- Central Laboratory, Tianjin Fifth Central Hospital, Tianjin, China
| | - Li Yanxia
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- Central Laboratory, Tianjin Fifth Central Hospital, Tianjin, China
| | - Xue Na
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- Central Laboratory, Tianjin Fifth Central Hospital, Tianjin, China
| | - Zhang Chunyan
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- Central Laboratory, Tianjin Fifth Central Hospital, Tianjin, China
| | - Gao Rui
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
| | - Wang Kuan
- Department of Cardiology, Tianjin Fifth Central Hospital, Tianjin, China
| | - Zhang Cheng
- Department of Cardiology, Tianjin Fifth Central Hospital, Tianjin, China
| | - Wang Cuancuan
- Department of Cardiology, Tianjin Fifth Central Hospital, Tianjin, China
| | - Liu Mingyong
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- Department of Urology, Tianjin Fifth Central Hospital, Tianjin, China
| | - Du Xinping
- Department of Cardiology, Tianjin Fifth Central Hospital, Tianjin, China
- Tianjin Key Laboratory of Epigenetics for Organ Development of Premature Infants, Tianjin Fifth Central Hospital, Tianjin, China
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
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Al-Eitan L, Alkhawaldeh M. MDMB-FUBINACA Influences Brain Angiogenesis and the Expression of VEGF, ANG-1, and ANG-2. Curr Vasc Pharmacol 2023; 21:356-365. [PMID: 37711102 DOI: 10.2174/1570161121666230913093441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 08/19/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023]
Abstract
AIM This study aims to explore the impact of the synthetic cannabinoid methyl 2-(1-(4- fluorobenzyl)-1H-indazole-3-carboxamido)-3,3-dimethylbutanoate (MDMB-FUBINACA) on the angiogenesis process in human brain microvascular endothelial cells. BACKGROUND Synthetic cannabinoids (SCs) are substances that mimic the natural components found in the cannabis plant. SCs are considered prohibited substances that have a clear impact on the central nervous system (CNS). OBJECTIVES The purpose of this study is to explore how MDMB-FUBINACA influences angiogenesis in human brain microvascular endothelial cells and to clarify the pathways related to the cannabinoid receptors. METHODS Human brain microvascular endothelial cells (hBMECs) were grown in the medium containing Dulbecco Modified Eagle Medium (DMEM/F12) using an endothelial cell growth kit. Endothelial cell viability was evaluated using the MTT test. Migration ability was measured using the Wound healing test. The angiogenic capability was measured using a Tube Formation assay. Real-time polymerase chain reaction (RT-PCR) was utilized to explore the mRNA concentrations following MDMBFUBINACA treatment. ELISA and Western blotting were also employed to measure the protein levels. RESULTS MDMB-FUBINACA greatly increases tube formation, endothelial cell proliferation, and migration. Pro-angiogenic factors such as angiopoietins 1 and 2 (ANG-1 and 2) and vascular endothelial growth factor (VEGF) were shown to be increased at both the RNA and protein levels. CONCLUSION MDMB-FUBINACA induces the progression of the angiogenesis process by inducing the expression of pro-angiogenic factors. These findings aim toward developing novel treatments for angiogenesis- related disorders.
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Affiliation(s)
- Laith Al-Eitan
- Biotechnology and Genetic Engineering Department, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Mishael Alkhawaldeh
- Biotechnology and Genetic Engineering Department, Jordan University of Science and Technology, Irbid, 22110, Jordan
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Scott XO, Chen SH, Hadad R, Yavagal D, Peterson EC, Starke RM, Dietrich WD, Keane RW, de Rivero Vaccari JP. Cohort study on the differential expression of inflammatory and angiogenic factors in thrombi, cerebral and peripheral plasma following acute large vessel occlusion stroke. J Cereb Blood Flow Metab 2022; 42:1827-1839. [PMID: 35673992 PMCID: PMC9536118 DOI: 10.1177/0271678x221106956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 05/10/2022] [Accepted: 05/20/2022] [Indexed: 11/17/2022]
Abstract
Inflammation plays an important role in the pathogenesis of stroke. The differential expression of inflammatory and angiogenic factors in thrombi and plasma remain undefined. In this observational cohort study, we evaluated angiogenic factors and inflammatory cytokines, in cerebral thrombi, local cerebral plasma (CP), and peripheral plasma (PP) in patients with acute ischemic stroke. Protein analysis of thrombi, CP and PP were used to measure angiogenic and inflammatory proteins using electrochemiluminescence. Our data indicate that VEGF-A, VEGF-C, bFGF, IL-4, IL-13, IL-1β, IL-2, IL-8, IL-16, IL-6 and IL-12p70 were higher in the thrombi of acute ischemic stroke patients than in the CP and PP of stroke patients. Moreover, the protein levels of GM-CSF were lower in the PP than in the CP and the clot. Moreover, VEGF-D, Flt-1, PIGF, TIE-2, IL-5, TNF-β, IL-15, IL-12/IL-23p40, IFN-γ and IL-17A were higher in PP and CP than in thrombi. Our results show that cytokines mediating the inflammatory response and proteins involved in angiogenesis are differentially expressed in thrombi within the cerebral and peripheral circulations. These data highlight the importance of identifying new biomarkers in different compartments of the circulatory system and in thrombi that may be used for the diagnosis and treatment of stroke patients.
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Affiliation(s)
- Xavier O Scott
- Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Stephanie H Chen
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Roey Hadad
- Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Dileep Yavagal
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Eric C Peterson
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Robert M Starke
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA
| | - W Dalton Dietrich
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Robert W Keane
- Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Juan Pablo de Rivero Vaccari
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA
- Center for Cognitive Neuroscience and Aging, University of Miami Miller School of Medicine, Miami, FL, USA
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6
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Wilcox BK, Henley MR, Navaneethabalakrishnan S, Martinez KA, Pournouri A, Goodlett BL, Lopez AH, Allbee ML, Pickup EJ, Bayless KJ, Chakraborty S, Mitchell BM. Hypertensive Stimuli Indirectly Stimulate Lymphangiogenesis through Immune Cell Secreted Factors. Cells 2022; 11:2139. [PMID: 35883582 PMCID: PMC9315625 DOI: 10.3390/cells11142139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 12/10/2022] Open
Abstract
(1) Background: Renal immune cells and lymphatic vessel (LV) density have been reported previously to be increased in multiple mouse models of hypertension (HTN). However, whether interstitial levels of HTN stimuli such as angiotensin II, salt, or asymmetric dimethylarginine have a direct or indirect effect on lymphangiogenesis is unknown. We hypothesized that these 3 HTN stimuli directly increase lymphatic endothelial cell (LEC) proliferation, LEC 3-D matrix invasion and vessel formation, and sprouting of mouse mesometrial LVs. (2) Methods: Human LECs (hLECs) and mouse LECs (mLECs) were treated with HTN stimuli while explanted mouse mesometrial LVs were treated with either the same HTN stimuli or with HTN stimuli-conditioned media. Conditioned media was prepared by treating murine splenocytes with HTN stimuli. (3) Results: HTN stimuli had no direct effect on hLEC or mLEC proliferation. Treatment of hLECs with HTN stimuli increased the number of lumen-forming structures and invasion distance (both p < 0.05) in the 3-D matrix but decreased the average lumen diameter and the number of cells per invading structure (both p < 0.05). Conditioned media from HTN-stimuli-treated splenocytes significantly attenuated the decrease in sprout number (aside from salt) and sprout length of mouse mesometrial LVs that is found in the HTN stimuli alone. (4) Conclusions: These data indicate that HTN stimuli indirectly prevent a decrease in lymphangiogenesis through secreted factors from HTN-stimuli-treated immune cells.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Sanjukta Chakraborty
- College of Medicine, Texas A&M University, Bryan, TX 77807, USA; (B.K.W.); (M.R.H.); (S.N.); (K.A.M.); (A.P.); (B.L.G.); (A.H.L.); (M.L.A.); (E.J.P.); (K.J.B.)
| | - Brett M. Mitchell
- College of Medicine, Texas A&M University, Bryan, TX 77807, USA; (B.K.W.); (M.R.H.); (S.N.); (K.A.M.); (A.P.); (B.L.G.); (A.H.L.); (M.L.A.); (E.J.P.); (K.J.B.)
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7
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Wujcicka WI, Kacerovsky M, Krygier A, Krekora M, Kaczmarek P, Grzesiak M. Association of Single Nucleotide Polymorphisms from Angiogenesis-Related Genes, ANGPT2, TLR2 and TLR9, with Spontaneous Preterm Labor. Curr Issues Mol Biol 2022; 44:2939-2955. [PMID: 35877427 PMCID: PMC9322696 DOI: 10.3390/cimb44070203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 12/07/2022] Open
Abstract
In this study, we hypothesized that the changes localized at angiopoietin-2 (ANGPT2), granulocyte-macrophage colony-stimulating factor (CSF2), fms-related tyrosine kinase 1 (FLT1) and toll-like receptor (TLR) 2, TLR6 and TLR9 genes were associated with spontaneous preterm labor (PTL), as well as with possible genetic alterations on PTL-related coagulation. This case-control genetic association study aimed to identify single nucleotide polymorphisms (SNPs) for the aforementioned genes, which are correlated with genetic risk or protection against PTL in Polish women. The study was conducted in 320 patients treated between 2016 and 2020, including 160 women with PTL and 160 term controls in labor. We found that ANGPT2 rs3020221 AA homozygotes were significantly less common in PTL cases than in controls, especially after adjusting for activated partial thromboplastin time (APTT) and platelet (PLT) parameters. TC heterozygotes for TLR2 rs3804099 were associated with PTL after correcting for anemia, vaginal bleeding, and history of threatened miscarriage or PTL. TC and CC genotypes in TLR9 rs187084 were significantly less common in women with PTL, compared to the controls, after adjusting for bleeding and gestational diabetes. For the first time, it was shown that three polymorphisms-ANGPT2 rs3020221, TLR2 rs3804099 and TLR9 rs187084 -were significantly associated with PTL, adjusted by pregnancy development influencing factors.
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Affiliation(s)
- Wioletta Izabela Wujcicka
- Scientific Laboratory of the Center of Medical Laboratory Diagnostics and Screening, Polish Mother’s Memorial Hospital-Research Institute, 93-338 Lodz, Poland
- Correspondence: or ; Tel.: +48-42-271-15-20; Fax: +48-42-271-15-10
| | - Marian Kacerovsky
- Department of Obstetrics and Gynecology, University Hospital Hradec Kralove, Charles University, 500 03 Hradec Kralove, Czech Republic;
- Biomedical Research Center, University Hospital Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Adrian Krygier
- Laboratory of Molecular Diagnostics and Pharmacogenomics, Department of Pharmaceutical Biochemistry and Molecular Diagnostics, Medical University of Lodz, 90-151 Lodz, Poland;
| | - Michał Krekora
- Department of Obstetrics and Gynecology, Polish Mother’s Memorial Hospital-Research Institute, 93-338 Lodz, Poland;
- Department of Gynecology and Obstetrics, Medical University of Lodz, 93-338 Lodz, Poland;
| | - Piotr Kaczmarek
- Department of Gynecology, Reproduction and Fetal Therapy, and Diagnostics and Treatment of Infertility, Polish Mother’s Memorial Hospital-Research Institute, 93-338 Lodz, Poland;
| | - Mariusz Grzesiak
- Department of Gynecology and Obstetrics, Medical University of Lodz, 93-338 Lodz, Poland;
- Department of Perinatology, Obstetrics and Gynecology, Polish Mother’s Memorial Hospital-Research Institute, 93-338 Lodz, Poland
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Mezu-Ndubuisi OJ, Maheshwari A. Role of the Endothelium in Neonatal Diseases. NEWBORN 2022; 1:44-57. [PMID: 35754998 PMCID: PMC9217741 DOI: 10.5005/jp-journals-11002-0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In both fetal and neonatal physiologic and pathologic processes in most organs, endothelial cells are known to play critical roles. Although the endothelium is one of the most ubiquitous cell type in the body, the tight adherence to the blood vessel wall has made it difficult to study their diverse function and structure. In this article, we have reviewed endothelial cell origins and explored their heterogeneity in terms of structure, function, developmental changes, and their role in inflammatory and infectious diseases. We have also attempted to evaluate the untapped therapeutic potentials of endothelial cells in neonatal disease. This article comprises various peer-reviewed studies, including ours, and an extensive database literature search from EMBASE, PubMed, and Scopus.
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Affiliation(s)
- Olachi J Mezu-Ndubuisi
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
| | - Akhil Maheshwari
- Global Newborn Society, Clarksville, Maryland, United States of America
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Angiopoietin-2-induced lymphatic endothelial cell migration drives lymphangiogenesis via the β1 integrin-RhoA-formin axis. Angiogenesis 2022; 25:373-396. [PMID: 35103877 DOI: 10.1007/s10456-022-09831-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 11/08/2021] [Indexed: 11/01/2022]
Abstract
Lymphangiogenesis is an essential physiological process but also a determining factor in vascular-related pathological conditions. Angiopoietin-2 (Ang2) plays an important role in lymphatic vascular development and function and its upregulation has been reported in several vascular-related diseases, including cancer. Given the established role of the small GTPase RhoA on cytoskeleton-dependent endothelial functions, we investigated the relationship between RhoA and Ang2-induced cellular activities. This study shows that Ang2-driven human dermal lymphatic endothelial cell migration depends on RhoA. We demonstrate that Ang2-induced migration is independent of the Tie receptors, but dependent on β1 integrin-mediated RhoA activation with knockdown, pharmacological approaches, and protein sequencing experiments. Although the key proteins downstream of RhoA, Rho kinase (ROCK) and myosin light chain, were activated, blockade of ROCK did not abrogate the Ang2-driven migratory effect. However, formins, an alternative target of RhoA, were identified as key players, and especially FHOD1. The Ang2-RhoA relationship was explored in vivo, where lymphatic endothelial RhoA deficiency blocked Ang2-induced lymphangiogenesis, highlighting RhoA as an important target for anti-lymphangiogenic treatments.
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Endoglin deficiency impairs VEGFR2 but not FGFR1 or TIE2 activation and alters VEGF-mediated cellular responses in human primary endothelial cells. Transl Res 2021; 235:129-143. [PMID: 33894400 PMCID: PMC8328903 DOI: 10.1016/j.trsl.2021.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 03/29/2021] [Accepted: 04/14/2021] [Indexed: 01/23/2023]
Abstract
Hereditary hemorrhagic telangiectasia (HHT) is a genetic disease characterized by vascular dysplasia. Mutations of the endoglin (ENG) gene that encodes a co-receptor of the transforming growth factor β1 signaling pathway cause type I HHT. ENG is primarily expressed in endothelial cells (ECs), but its interaction with other key angiogenic pathways to control angiogenesis has not been well addressed. The aim of this study is to investigate ENG interplay with VEGFR2, FGFR1 and TIE2 in primary human ECs. ENG was knocked-down with siRNA in human umbilical vein ECs (HUVECs) and human lung microvascular ECs (HMVEC-L). Gene expression was measured by RT-qPCR and Western blotting. Cell signaling pathway activation was analyzed by detecting phosphor-ERK and phosphor-AKT levels. Cell migration and apoptosis were assessed using the Boyden chamber assay and the CCK-8 Kit, respectively. Loss of ENG in HUVECs led to significantly reduced expression of VEGFR2 but not TIE2 or FGFR1, which was also confirmed in HMVEC-L. HUVECs lacking ENG had significantly lower levels of active Rac1 and a substantial reduction of the transcription factor Sp1, an activator of VEGFR2 transcription, in nuclei. Furthermore, VEGF- but not bFGF- or angiopoietin-1-induced phosphor-ERK and phosphor-AKT were suppressed in ENG deficient HUVECs. Functional analysis revealed that ENG knockdown inhibited cell migratory but enhanced anti-apoptotic activity induced by VEGF. In contrast, bFGF, angiopoietin-1 and -2 induced HUVEC migration and anti-apoptotic activities were not affected by ENG knockdown. In conclusion, ENG deficiency alters the VEGF/VEGFR2 pathway, which may play a role in HHT pathogenesis.
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Harel S, Sanchez V, Moamer A, Sanchez-Galan JE, Abid Hussein MN, Mayaki D, Blanchette M, Hussain SNA. ETS1, ELK1, and ETV4 Transcription Factors Regulate Angiopoietin-1 Signaling and the Angiogenic Response in Endothelial Cells. Front Physiol 2021; 12:683651. [PMID: 34381375 PMCID: PMC8350579 DOI: 10.3389/fphys.2021.683651] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 07/05/2021] [Indexed: 12/03/2022] Open
Abstract
Background Angiopoietin-1 (Ang-1) is the main ligand of Tie-2 receptors. It promotes endothelial cell (EC) survival, migration, and differentiation. Little is known about the transcription factors (TFs) in ECs that are downstream from Tie-2 receptors. Objective The main objective of this study is to identify the roles of the ETS family of TFs in Ang-1 signaling and the angiogenic response. Methods In silico enrichment analyses that were designed to predict TF binding sites of the promotors of eighty-six Ang-1-upregulated genes showed significant enrichment of ETS1, ELK1, and ETV4 binding sites in ECs. Human umbilical vein endothelial cells (HUVECs) were exposed for different time periods to recombinant Ang-1 protein and mRNA levels of ETS1, ELK1, and ETV4 were measured with qPCR and intracellular localization of these transcription factors was assessed with immunofluorescence. Electrophoretic mobility shift assays and reporter assays were used to assess activation of ETS1, ELK1, and ETV4 in response to Ang-1 exposure. The functional roles of these TFs in Ang-1-induced endothelial cell survival, migration, differentiation, and gene regulation were evaluated by using a loss-of-function approach (transfection with siRNA oligos). Results Ang-1 exposure increased ETS1 mRNA levels but had no effect on ELK1 or ETV4 levels. Immunostaining revealed that in control ECs, ETS1 has nuclear localization whereas ELK1 and ETV4 are localized to the nucleus and the cytosol. Ang-1 exposure increased nuclear intensity of ETS1 protein and enhanced nuclear mobilization of ELK1 and ETV4. Selective siRNA knockdown of ETS1, ELK1, and ETV4 showed that these TFs are required for Ang-1-induced EC survival and differentiation of cells, while ETS1 and ETV4 are required for Ang-1-induced EC migration. Moreover, ETS1, ELK1, and ETV4 knockdown inhibited Ang-1-induced upregulation of thirteen, eight, and nine pro-angiogenesis genes, respectively. Conclusion We conclude that ETS1, ELK1, and ETV4 transcription factors play significant angiogenic roles in Ang-1 signaling in ECs.
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Affiliation(s)
- Sharon Harel
- Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Department of Critical Care, McGill University Health Centre, Montreal, QC, Canada.,Meakins-Christie Laboratories, Department of Medicine, McGill University, Montreal, QC, Canada
| | - Veronica Sanchez
- Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Department of Critical Care, McGill University Health Centre, Montreal, QC, Canada.,Meakins-Christie Laboratories, Department of Medicine, McGill University, Montreal, QC, Canada
| | - Alaa Moamer
- Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Department of Critical Care, McGill University Health Centre, Montreal, QC, Canada.,Meakins-Christie Laboratories, Department of Medicine, McGill University, Montreal, QC, Canada
| | - Javier E Sanchez-Galan
- School of Computer Science, McGill Centre for Bioinformatics, McGill University, Montreal, QC, Canada
| | - Mohammad N Abid Hussein
- School of Engineering and Technology (SET), Aldar University College, Dubai, United Arab Emirates
| | - Dominique Mayaki
- Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Department of Critical Care, McGill University Health Centre, Montreal, QC, Canada.,Meakins-Christie Laboratories, Department of Medicine, McGill University, Montreal, QC, Canada
| | - Mathieu Blanchette
- School of Computer Science, McGill Centre for Bioinformatics, McGill University, Montreal, QC, Canada
| | - Sabah N A Hussain
- Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Department of Critical Care, McGill University Health Centre, Montreal, QC, Canada.,Meakins-Christie Laboratories, Department of Medicine, McGill University, Montreal, QC, Canada
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12
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Adjuto-Saccone M, Soubeyran P, Garcia J, Audebert S, Camoin L, Rubis M, Roques J, Binétruy B, Iovanna JL, Tournaire R. TNF-α induces endothelial-mesenchymal transition promoting stromal development of pancreatic adenocarcinoma. Cell Death Dis 2021; 12:649. [PMID: 34172716 PMCID: PMC8233393 DOI: 10.1038/s41419-021-03920-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 06/06/2021] [Accepted: 06/08/2021] [Indexed: 12/24/2022]
Abstract
Endothelial–mesenchymal transition (EndMT) is an important source of cancer-associated fibroblasts (CAFs), which facilitates tumour progression. PDAC is characterised by abundant CAFs and tumour necrosis factor-α (TNF-α). Here, we show that TNF-α strongly induces human endothelial cells to undergo EndMT. Interestingly, TNF-α strongly downregulates the expression of the endothelial receptor TIE1, and reciprocally TIE1 overexpression partially prevents TNF-α-induced EndMT, suggesting that TNF-α acts, at least partially, through TIE1 regulation in this process. We also show that TNF-α-induced EndMT is reversible. Furthermore, TNF-α treatment of orthotopic mice resulted in an important increase in the stroma, including CAFs. Finally, secretome analysis identified TNFSF12, as a regulator that is also present in PDAC patients. With the aim of restoring normal angiogenesis and better access to drugs, our results support the development of therapies targeting CAFs or inducing the EndMT reversion process in PDAC.
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Affiliation(s)
- Marjorie Adjuto-Saccone
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Philippe Soubeyran
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Julie Garcia
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Stéphane Audebert
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Marseille Protéomique, Aix-Marseille Université and Institut Paoli-Calmettes, Marseille, France
| | - Luc Camoin
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Marseille Protéomique, Aix-Marseille Université and Institut Paoli-Calmettes, Marseille, France
| | - Marion Rubis
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Julie Roques
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Bernard Binétruy
- INMED, INSERM U1249, Aix-Marseille Université, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Juan Lucio Iovanna
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Roselyne Tournaire
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France.
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13
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Abstract
The COVID-19 pandemic now totaling 13,000,000 cases and over 571,000 deaths has continued to teach the medical, scientific and lay communities about viral infectious disease in the modern era. Among the many lessons learned for the medical community is the potential for transmissibility and host infectivity of the SARS–CoV-2 virus. Moreover, it has become clear that the virus can affect any organ including the circulatory system, directly via either tissue tropism or indirectly stemming from inflammatory responses in the form of innate immunity, leukocyte debris such as cell-free DNA and histones and RNA viral particles. The following review considers COVID-19-associated vasculitis and vasculopathy as a defining feature of a virus-induced systemic disease with acute, subacute and potential chronic health implications.
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14
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Miyano K, Okamoto S, Yamauchi A, Kawai C, Kajikawa M, Kiyohara T, Tamura M, Taura M, Kuribayashi F. The NADPH oxidase NOX4 promotes the directed migration of endothelial cells by stabilizing vascular endothelial growth factor receptor 2 protein. J Biol Chem 2020; 295:11877-11890. [PMID: 32616654 DOI: 10.1074/jbc.ra120.014723] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 06/26/2020] [Indexed: 11/06/2022] Open
Abstract
Directed migration of endothelial cells (ECs) is an important process during both physiological and pathological angiogenesis. The binding of vascular endothelial growth factor (VEGF) to VEGF receptor-2 (VEGFR-2) on the EC surface is necessary for directed migration of these cells. Here, we used TAXIScan, an optically accessible real-time horizontal cell dynamics assay approach, and demonstrate that reactive oxygen species (ROS)-producing NADPH oxidase 4 (NOX4), which is abundantly expressed in ECs, mediates VEGF/VEGFR-2-dependent directed migration. We noted that a continuous supply of endoplasmic reticulum (ER)-retained VEGFR-2 to the plasma membrane is required to maintain VEGFR-2 at the cell surface. siRNA-mediated NOX4 silencing decreased the ER-retained form of VEGFR-2, resulting in decreased cell surface expression levels of the receptor. We also found that ER-localized NOX4 interacts with ER-retained VEGFR-2 and thereby stabilizes this ER-retained form at the protein level in the ER. We conclude that NOX4 contributes to the directed migration of ECs by maintaining VEGFR-2 levels at their surface.
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Affiliation(s)
- Kei Miyano
- Department of Biochemistry, Kawasaki Medical School, Okayama, Japan
| | | | - Akira Yamauchi
- Department of Biochemistry, Kawasaki Medical School, Okayama, Japan
| | - Chikage Kawai
- Department of Biochemistry, Kawasaki Medical School, Okayama, Japan
| | - Mizuho Kajikawa
- Laboratory of Microbiology, Showa Pharmaceutical University, Tokyo, Japan
| | - Takuya Kiyohara
- Department of Cerebrovascular Disease and Neurology, Hakujyuji Hospital, Fukuoka, Japan
| | - Minoru Tamura
- Department of Applied Chemistry, Graduate School of Science and Engineering, Ehime University, Ehime, Japan
| | - Masahiko Taura
- Department of Otorhinolaryngology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
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15
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Roles of miR-640 and Zinc Finger Protein 91 (ZFP91) in Angiopoietin-1-Induced In Vitro Angiogenesis. Cells 2020; 9:cells9071602. [PMID: 32630670 PMCID: PMC7408170 DOI: 10.3390/cells9071602] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 06/26/2020] [Accepted: 06/30/2020] [Indexed: 12/12/2022] Open
Abstract
Angiopoietin-1 (Ang-1) is a ligand of Tie-2 receptors that promotes angiogenesis. It has been established that regulatory loops exist between angiogenic growth factors and distinct pro or anti-angiogenic miRNAs, but the nature and the roles of Ang-1-regulated miRNAs remain unclear. In this study, we assessed the role of miR-640 in Ang-1-induced angiogenesis in human umbilical vein endothelial cells (HUVECs). Exposure to Ang-1 (300 ng/mL) from 6 to 72 h significantly decreased expression of mature miR-640, a response that was mediated by Tie-2 receptors and was also observed in response to Ang-2, the vascular endothelial growth factor, and transforming growth factor β. Increasing miR-640 levels using a mimic inhibited Ang-1-induced cell migration and capillary-like tube formation whereas inhibition of miR-640 enhanced these responses. Pull down assays of biotinylated miR-640 revealed that miR-640 directly targets Zinc Finger Protein 91 (ZFP91), an atypical E3-ubiquitin ligase. Ang-1 exposure induced ZFP91 expression through down-regulation of miR-640. Silencing of ZFP91 significantly inhibited Ang-1-induced cell migration and tube formation. We conclude that Ang-1 upregulates ZFP91 expression through transcriptional down-regulation of miR-640 and that ZFP91 plays important roles in the promotion of Ang-1-induced endothelial cell migration and differentiation.
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16
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Han G, Zheng Z, Pan Z, Lin Y, Gan S, Jiao Y, Li H, Zhou C, Ding S, Li L. Sulfated chitosan coated polylactide membrane enhanced osteogenic and vascularization differentiation in MC3T3-E1s and HUVECs co-cultures system. Carbohydr Polym 2020; 245:116522. [PMID: 32718626 DOI: 10.1016/j.carbpol.2020.116522] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/24/2020] [Accepted: 05/25/2020] [Indexed: 12/22/2022]
Abstract
This study aimed to compare the effects of the two type chitosan derivatives, sulfated chitosan (SCS) and phosphorylated chitosan (PCS), coated on poly(d,l-lactide) (PDLLA) membrane via polydopamine, respectively, on vascularization and osteogenesis in vitro. Mouse preosteoblast cells (MC3T3-E1s) and human umbilical vein endothelial cells (HUVECs) were used as co-cultures system. The effects of two type membranes on calcium deposition, alkaline phosphatase (ALP) activity, vascularization related factors nitric oxide (NO) and angiogenic growth factor vascular endothelial growth factor (VEGF) were assessed. The changes of osteogenic and angiogenic related gene, and protein expression were evaluated too. In fact, SCS modified PDLLA membrane had the highest related gene and protein expression than other PDLLA membranes. Our results demonstrated that the SCS maybe a promising matrix for bone regeneration by co-cultures of ECs and OCs than PCS.
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Affiliation(s)
- Guijuan Han
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China
| | - Zexiang Zheng
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China
| | - Zhicheng Pan
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China
| | - Yucheng Lin
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China
| | - Shuchun Gan
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China
| | - Yanpeng Jiao
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China; Engineering Research Centre of Artificial Organs & Materials, Jinan University, Guangzhou 510632, PR China
| | - Hong Li
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China; Engineering Research Centre of Artificial Organs & Materials, Jinan University, Guangzhou 510632, PR China
| | - Changren Zhou
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China; Engineering Research Centre of Artificial Organs & Materials, Jinan University, Guangzhou 510632, PR China
| | - Shan Ding
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China; Engineering Research Centre of Artificial Organs & Materials, Jinan University, Guangzhou 510632, PR China.
| | - Lihua Li
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, PR China; Engineering Research Centre of Artificial Organs & Materials, Jinan University, Guangzhou 510632, PR China.
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17
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Huang XM, Yang WC, Liu Y, Tang DR, Wu T, Sun FY. Mutations in MC4R facilitate the angiogenic activity in patients with orbital venous malformation. Exp Biol Med (Maywood) 2020; 245:956-963. [PMID: 32363922 DOI: 10.1177/1535370220919056] [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: 11/16/2022] Open
Abstract
IMPACT STATEMENT The detailed molecular mechanism of orbital venous malformation (OVM) is still not clear. Using whole exome sequencing, 4 types of melanocortin 4 receptor (MC4R) mutation were detected in 7 of 27 patients with OVM, and all types of MC4R mutations resulted in the upregulation of MC4R expression. In vitro study indicated that MC4R has impacts on the proliferation, cell cycle, migration, and tube formation of the endothelial cells. Moreover, MC4R mutations altered the downstream signaling, including cAMP concentration and the expression levels of several PI3K/AKT/mTOR downstream genes, including p21, cyclin B1, ITGA10, and ITGA11. MC4R mutations may lead to the pathogenesis of OVM through modulating the downstream signaling to alter the angiogenic activity of endothelial cells.
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Affiliation(s)
- Xiao-Ming Huang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin 300384, China.,Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China.,Orbital Disease Institute, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Wan-Chen Yang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin 300384, China.,Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Yang Liu
- Orbital Disease Institute, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Dong-Run Tang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin 300384, China.,Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Tong Wu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin 300384, China.,Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
| | - Feng-Yuan Sun
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin 300384, China.,Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China
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18
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Yu X, Ye F. Role of Angiopoietins in Development of Cancer and Neoplasia Associated with Viral Infection. Cells 2020; 9:cells9020457. [PMID: 32085414 PMCID: PMC7072744 DOI: 10.3390/cells9020457] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/09/2020] [Accepted: 02/13/2020] [Indexed: 02/06/2023] Open
Abstract
Angiopoietin/tyrosine protein kinase receptor Tie-2 signaling in endothelial cells plays an essential role in angiogenesis and wound healing. Angiopoietin-1 (Ang-1) is crucial for blood vessel maturation while angiopoietin-2 (Ang-2), in collaboration with vascular endothelial growth factor (VEGF), initiates angiogenesis by destabilizing existing blood vessels. In healthy people, the Ang-1 level is sustained while Ang-2 expression is restricted. In cancer patients, Ang-2 level is elevated, which correlates with poor prognosis. Ang-2 not only drives tumor angiogenesis but also attracts infiltration of myeloid cells. The latter rapidly differentiate into tumor stromal cells that foster tumor angiogenesis and progression, and weaken the host’s anti-tumor immunity. Moreover, through integrin signaling, Ang-2 induces expression of matrix metallopeptidases (MMPs) to promote tumor cell invasion and metastasis. Many oncogenic viruses induce expression of Ang-2 to promote development of neoplasia associated with viral infection. Multiple Ang-2 inhibitors exhibit remarkable anti-tumor activities, further highlighting the importance of Ang-2 in cancer development.
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Affiliation(s)
- Xiaolan Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Sciences, Hubei University, Wuhan 430062, China
- Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, Wuhan 430062, China
- Correspondence: (X.Y.); (F.Y.); Tel.: +086-27-88661237 (X.Y.); +216-368-8892 (F.Y.)
| | - Fengchun Ye
- Department of Molecular Biology & Microbiology, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Correspondence: (X.Y.); (F.Y.); Tel.: +086-27-88661237 (X.Y.); +216-368-8892 (F.Y.)
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19
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Qi R, Li TC, Chen X. The role of the renin-angiotensin system in regulating endometrial neovascularization during the peri-implantation period: literature review and preliminary data. Ther Adv Endocrinol Metab 2020; 11:2042018820920560. [PMID: 32499907 PMCID: PMC7243379 DOI: 10.1177/2042018820920560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 03/30/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Implantation is initiated when the blastocyst attaches to the endometrium during the peri-implantation period, and appropriate neovascularization is a prerequisite for the success of the subsequent process. The role of the renin-angiotensin system (RAS) in regulation of blood pressure and hydro-electrolyte balance has long been recognized, while its role in the peri-implantation endometrium remains unclear. This manuscript discusses endometrial RAS and its possible pathways in regulating endometrial angiogenesis and its influence on subsequent pregnancy outcomes. METHODS A comprehensive search of electronic databases was carried out to identify relevant published articles, and a literature review was then performed. Using immunohistochemistry, we also performed a pilot study to examine expression of angiotensin II receptors, including angiotensin II type 1 (AT1) receptor (AT1-R) and angiotensin II type 2 (AT2) receptor (AT2-R) in the human endometrium around the time of implantation. RESULTS The results of the pilot study showed expression of AT1-R and AT2-R in all endometrial compartments (luminal epithelium, glandular epithelium, stroma cells, and blood vessels), and altered expression was witnessed in women with recurrent miscarriage when compared with fertile control women from our preliminary result. CONCLUSION Altered vasculature of the endometrium in the peri-implantation period is detrimental to implantation and may lead to recurrent miscarriage. Being an angiogenic mediators, endometrial RAS may play a role around the time of embryo implantation, affecting subsequent pregnancy outcomes.
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Affiliation(s)
- Ruofan Qi
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Tin Chiu Li
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong
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20
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Umapathy A, Chamley LW, James JL. Reconciling the distinct roles of angiogenic/anti-angiogenic factors in the placenta and maternal circulation of normal and pathological pregnancies. Angiogenesis 2019; 23:105-117. [DOI: 10.1007/s10456-019-09694-w] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 10/26/2019] [Indexed: 01/03/2023]
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21
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Cigarette Smoke Induced Lung Barrier Dysfunction, EMT, and Tissue Remodeling: A Possible Link between COPD and Lung Cancer. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2025636. [PMID: 31341890 PMCID: PMC6613007 DOI: 10.1155/2019/2025636] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/02/2019] [Indexed: 12/13/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer, closely related to smoking, are major lung diseases affecting millions of individuals worldwide. The generated gas mixture of smoking is proved to contain about 4,500 components such as carbon monoxide, nicotine, oxidants, fine particulate matter, and aldehydes. These components were considered to be the principle factor driving the pathogenesis and progression of pulmonary disease. A large proportion of lung cancer patients showed a history of COPD, which demonstrated that there might be a close relationship between COPD and lung cancer. In the early stages of smoking, lung barrier provoked protective response and DNA repair are likely to suppress these changes to a certain extent. In the presence of long-term smoking exposure, these mechanisms seem to be malfunctioned and lead to disease progression. The infiltration of inflammatory cells to mucosa, submucosa, and glandular tissue caused by inhaled cigarette smoke is responsible for the destruction of matrix, blood supply shortage, and epithelial cell death. Conversely, cancer cells have the capacity to modulate the proliferation of epithelial cells and produce of new vascular networks. Comprehension understanding of mechanisms responsible for both pathologies is necessary for the prevention and treatment of COPD and lung cancer. In this review, we will summarize related articles and give a glance of possible mechanism between cigarette smoking induced COPD and lung cancer.
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22
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Löwen J, Gröne E, Gröne HJ, Kriz W. Herniation of the tuft with outgrowth of vessels through the glomerular entrance in diabetic nephropathy damages the juxtaglomerular apparatus. Am J Physiol Renal Physiol 2019; 317:F399-F410. [PMID: 31141396 DOI: 10.1152/ajprenal.00617.2018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
As shown in our previous paper (Kriz W, Löwen J, Federico G, van den Born J, Gröne E, Gröne HJ. Am J Physiol Renal Physiol 312: F1101-F1111, 2017), mesangial matrix expansion in diabetic nephropathy (DN) results for a major part from the accumulation of worn-out undegraded glomerular basement membrane material. Here, based on the reevaluation of >900 biopsies of DN, we show that this process continues with the progression of the disease finally leading to the herniation of the matrix-overloaded tuft through the glomerular entrance to the outside. This leads to severe changes in the glomerular surroundings, including a dissociation of the juxtaglomerular apparatus with displacement of the macula densa. The herniation is associated with a prominent outgrowth of glomerular vessels from the tuft. Mostly, these aberrant vessels are an abnormal type of arteriole with frequent intramural insudations of plasma. They spread into glomerular surroundings extending in intertubular and periglomerular spaces. Their formation is associated with elevated mRNA levels of vascular endothelial growth factor-A, angiopoietins 1 and 2, and the corresponding receptors. Functionally, these processes seem to compromise tubuloglomerular feedback-related functions and may be one factor why Na+-glucose cotransporter-2 inhibitors are not effective in advanced stages of DN.
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Affiliation(s)
- Jana Löwen
- Medical Faculty Mannheim, Department of Neuroanatomy, University of Heidelberg, Heidelberg, Germany.,German Cancer Research Center, Heidelberg, Germany
| | | | - Hermann-Josef Gröne
- German Cancer Research Center, Heidelberg, Germany.,Institute of Pharmacology, Philipps University, Marburg, Germany
| | - Wilhelm Kriz
- Medical Faculty Mannheim, Department of Neuroanatomy, University of Heidelberg, Heidelberg, Germany
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23
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Lyle CL, Belghasem M, Chitalia VC. c-Cbl: An Important Regulator and a Target in Angiogenesis and Tumorigenesis. Cells 2019; 8:cells8050498. [PMID: 31126146 PMCID: PMC6563115 DOI: 10.3390/cells8050498] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 02/07/2023] Open
Abstract
Casitas B lineage lymphoma (c-Cbl) is a multifunctional protein with a ubiquitin E3 ligase activity capable of degrading diverse sets of proteins. Although previous work had focused mainly on c-Cbl mutations in humans with hematological malignancies, recent emerging evidence suggests a critical role of c-Cbl in angiogenesis and human solid organ tumors. The combination of its unique structure, modular function, and ability to channelize cues from a rich network of signaling cascades, empowers c-Cbl to assume a central role in these disease models. This review consolidates the structural and functional insights based on recent studies that highlight c-Cbl as a target with tantalizing therapeutic potential in various models of angiogenesis and tumorigenesis.
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Affiliation(s)
- Chimera L Lyle
- Department of Medicine, Boston University Medical Center, Boston, MA 02118, USA.
| | - Mostafa Belghasem
- Department of Pathology and Laboratory Medicine, Boston University Medical Center, Boston, MA 02118, USA.
| | - Vipul C Chitalia
- Department of Medicine, Boston University Medical Center, Boston, MA 02118, USA.
- Boston Veterans Affairs Healthcare System, Boston, MA 02118, USA.
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Angiogenic effect of platelet-rich concentrates on dental pulp stem cells in inflamed microenvironment. Clin Oral Investig 2019; 23:3821-3831. [PMID: 30687907 DOI: 10.1007/s00784-019-02811-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 01/11/2019] [Indexed: 01/04/2023]
Abstract
OBJECTIVE In this study, we aimed to determine the suitable concentrations of human platelet lysate (HPL) and platelet-rich plasma (PRP) for maintaining the in vitro proliferative and angiogenic potential of inflamed dental pulp stem cells. MATERIALS AND METHODS Lipopolysaccharide (LPS)-induced inflamed dental pulp-derived stem cells (iDPSCs) were treated with different concentrations of HPL and PRP (10% and 20%) followed by determination of viability using Alamar Blue assay. Expression of angiogenesis-, adhesion-, and inflammation-regulating genes was also analyzed using RT-qPCR array. Furthermore, expression of growth factors at protein level in the cell culture microenvironment was measured using multiplex assay. RESULTS Viability of iDPSCs was significantly (p < 0.05) higher in 20% HPL-supplemented media compared to iDPSCs. Expression of 10 out of 12 selected angiogenic genes, four out of seven adhesion molecules, and seven out of nine cytokine-producing genes were significantly (p < 0.05) higher in cells maintained in 20% HPL-supplemented media compared to that in FBS-supplemented media. Furthermore, expression of all the selected growth factors was significantly higher (p < 0.05) in the supernatants from 20% HPL media at 12 and 24 h post-incubation. CONCLUSION This study suggests that 20% HPL could be optimum to stimulate angiogenesis-related factors in iDPSCs while maintaining their viability. CLINICAL RELEVANCE This data may suggest the potential use of 20% HPL for expanding DPSCs scheduled for clinical trials for regenerative therapies including dental pulp regeneration.
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Ebihara I, Hirayama K, Nagai M, Shiina E, Koda M, Gunji M, Okubo Y, Sato C, Usui J, Yamagata K, Kobayashi M. Angiopoietin Balance in Septic Shock Patients With Acute Kidney Injury: Effects of Direct Hemoperfusion With Polymyxin B-Immobilized Fiber. Ther Apher Dial 2017; 20:368-75. [PMID: 27523077 DOI: 10.1111/1744-9987.12468] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Indexed: 02/06/2023]
Abstract
Acute kidney injury (AKI) occurs in approximately 50% of patients in septic shock, and mortality from septic AKI is extremely high. Angiopoietin levels may play a role in the pathogenesis of vascular permeability. It was reported that direct hemoperfusion with a polymyxin B-immobilized fiber column (DHP-PMX) therapy ameliorates the angiopoietin balance in patients with sepsis. Although dysregulated angiopoietin balance in sepsis has been demonstrated, mechanisms underlying the development of AKI in sepsis have not been identified. We investigated angiopoietin levels in septic patients with/without AKI treated with DHP-PMX therapy. We used an enzyme-linked immunoassay to measure serum angiopoietin-1 and -2 levels in 38 septic shock patients treated with DHP-PMX. The renal function of all patients was normal for less than 3 months. Twenty-seven of the patients were diagnosed with AKI. The angiopoietin-1 level of the AKI group was significantly lower than that of the non-AKI group at the initiation of DHP-PMX therapy, but there was no significant difference between the two groups at the end of DHP-PMX therapy. In the AKI group with recovery, the mean angiopoietin-1 level at the end of DHP-PMX therapy was significantly elevated compared to the level before DHP-PMX therapy, and the mean angiopoietin-2 level at the end of DHP-PMX therapy was significantly decreased compared to the level before DHP-PMX therapy. These results suggest that angiopoietins may play a role in the pathogenesis of AKI and that DHP-PMX therapy may ameliorate the angiopoietin balance in AKI patients with sepsis.
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Affiliation(s)
- Itaru Ebihara
- Department of Nephrology, Mito Saiseikai General Hospital, Mito, Ibaraki, Japan
| | - Kouichi Hirayama
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, Ami, Ibaraki, Japan
| | - Miho Nagai
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Eri Shiina
- Department of Nephrology, Mito Saiseikai General Hospital, Mito, Ibaraki, Japan
| | - Megumi Koda
- Department of Nephrology, Mito Saiseikai General Hospital, Mito, Ibaraki, Japan
| | - Masanobu Gunji
- Department of Nephrology, Mito Saiseikai General Hospital, Mito, Ibaraki, Japan
| | - Yuki Okubo
- Department of Nephrology, Mito Saiseikai General Hospital, Mito, Ibaraki, Japan
| | - Chihiro Sato
- Department of Nephrology, Mito Saiseikai General Hospital, Mito, Ibaraki, Japan
| | - Joichi Usui
- Department of Nephrology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kunihiro Yamagata
- Department of Nephrology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masaki Kobayashi
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, Ami, Ibaraki, Japan
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Fujisawa T, Wang K, Niu XL, Egginton S, Ahmad S, Hewett P, Kontos CD, Ahmed A. Angiopoietin-1 promotes atherosclerosis by increasing the proportion of circulating Gr1+ monocytes. Cardiovasc Res 2017; 113:81-89. [PMID: 28069704 PMCID: PMC5220674 DOI: 10.1093/cvr/cvw223] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 10/11/2016] [Accepted: 10/17/2016] [Indexed: 01/22/2023] Open
Abstract
Aims Atherosclerosis is a chronic inflammatory disease occurring within the artery wall. A crucial step in atherogenesis is the infiltration and retention of monocytes into the subendothelial space of large arteries induced by chemokines and growth factors. Angiopoietin-1 (Ang-1) regulates angiogenesis and reduces vascular permeability and has also been reported to promote monocyte migration in vitro. We investigated the role of Ang-1 in atherosclerosis-prone apolipoprotein-E (Apo-E) knockout mouse. Methods and results Apo-E knockout (Apo-E-/-) mice fed a western or normal chow diet received a single iv injection of adenovirus encoding Ang-1 or control vector. Adenovirus-mediated systemic expression of Ang-1 induced a significant increase in early atherosclerotic lesion size and monocyte/macrophage accumulation compared with control animals receiving empty vector. Ang-1 significantly increased plasma MCP-1 and VEGF levels as measured by ELISA. FACS analysis showed that Ang-1 selectively increased inflammatory Gr1+ monocytes in the circulation, while the cell-surface expression of CD11b, which mediates monocyte emigration, was significantly reduced. Conclusions Ang-1 specifically increases circulating Gr1+ inflammatory monocytes and increases monocyte/macrophage retention in atherosclerotic plaques, thereby contributing to development of atherosclerosis.
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Affiliation(s)
- Takeshi Fujisawa
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham B4 7ET, U.K.,Gustav Born Centre for Vascular Biology and BHF Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Keqing Wang
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham B4 7ET, U.K; .,Gustav Born Centre for Vascular Biology and BHF Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Xi-Lin Niu
- Department of Medicine, Division of Cardiology, Duke University Medical Centre, Durham, NC 27710, USA
| | - Stuart Egginton
- Multidisciplinary Cardiovascular Research Centre, School of Biological Sciences, University of Leeds, Leeds, UK
| | - Shakil Ahmad
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham B4 7ET, U.K.,Gustav Born Centre for Vascular Biology and BHF Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Peter Hewett
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Christopher D Kontos
- Department of Medicine, Division of Cardiology, Duke University Medical Centre, Durham, NC 27710, USA
| | - Asif Ahmed
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham B4 7ET, U.K; .,Gustav Born Centre for Vascular Biology and BHF Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh EH16 4TJ, UK
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Review of the endothelial pathogenic mechanism of TIE2-related venous malformation. J Vasc Surg Venous Lymphat Disord 2017; 5:740-748. [DOI: 10.1016/j.jvsv.2017.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/11/2017] [Indexed: 11/20/2022]
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28
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Tumor angiogenesis and vascular normalization: alternative therapeutic targets. Angiogenesis 2017; 20:409-426. [PMID: 28660302 DOI: 10.1007/s10456-017-9562-9] [Citation(s) in RCA: 882] [Impact Index Per Article: 126.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/21/2017] [Indexed: 12/27/2022]
Abstract
Tumor blood vessels are a key target for cancer therapeutic management. Tumor cells secrete high levels of pro-angiogenic factors which contribute to the creation of an abnormal vascular network characterized by disorganized, immature and permeable blood vessels, resulting in poorly perfused tumors. The hypoxic microenvironment created by impaired tumor perfusion can promote the selection of more invasive and aggressive tumor cells and can also impede the tumor-killing action of immune cells. Furthermore, abnormal tumor perfusion also reduces the diffusion of chemotherapeutic drugs and radiotherapy efficiency. To fight against this defective phenotype, the normalization of the tumor vasculature has emerged as a new therapeutic strategy. Vascular normalization, by restoring proper tumor perfusion and oxygenation, could limit tumor cell invasiveness and improve the effectiveness of anticancer treatments. In this review, we investigate the mechanisms involved in tumor angiogenesis and describe strategies used to achieve vascular normalization.
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NOX2, NOX4, and mitochondrial-derived reactive oxygen species contribute to angiopoietin-1 signaling and angiogenic responses in endothelial cells. Vascul Pharmacol 2017; 92:22-32. [DOI: 10.1016/j.vph.2017.03.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 03/13/2017] [Accepted: 03/18/2017] [Indexed: 11/17/2022]
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Shrestha S, Meyers C, Shen J, Giacomelli P, Scott MA, Soo C, Dry SM, Ting K, James AW. Ang-1 and Ang-2 expression in angiomyolipoma and PEComa family tumors. J Orthop 2017; 14:154-160. [PMID: 28053374 PMCID: PMC5196089 DOI: 10.1016/j.jor.2016.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 12/05/2016] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Perivascular epithelioid cell tumors (PEComa) are an uncommon family of soft tissue tumors. Previously, we described that the presence of pericyte antigens among PEComa family tumors differs extensively by histologic appearance. METHODS Here, we extend our findings using the pericyte antigens Angiopoietin-1 (Ang-1) and Angiopoietin-2 (Ang-2), using immunohistochemical detection in human tumor samples. RESULTS While Ang-1 showed no expression across any PEComa family tumor, Ang-2 showed expression that like other pericyte markers was largely determined by cytologic appearance. CONCLUSION/IMPLICATIONS Pericytic marker expression in PEComa may represent a true pericytic cell of origin, or alternatively aberrant pericyte marker adoption.
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Affiliation(s)
- Swati Shrestha
- School of Dentistry, University of California, Los Angeles, USA
| | - Carolyn Meyers
- Department of Pathology, The Johns Hopkins University, Baltimore, MD, USA
| | - Jia Shen
- School of Dentistry, University of California, Los Angeles, USA
| | | | | | - Chia Soo
- Orthopedic Hospital Research Center, University of California, Los Angeles, USA
- Department of Surgery, University of California, Los Angeles, Los Angeles, CA, USA
| | - Sarah M. Dry
- Department of Pathology, The Johns Hopkins University, Baltimore, MD, USA
| | - Kang Ting
- School of Dentistry, University of California, Los Angeles, USA
| | - Aaron W. James
- Department of Pathology, The Johns Hopkins University, Baltimore, MD, USA
- Orthopedic Hospital Research Center, University of California, Los Angeles, USA
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Yzaguirre AD, de Bruijn MFTR, Speck NA. The Role of Runx1 in Embryonic Blood Cell Formation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 962:47-64. [DOI: 10.1007/978-981-10-3233-2_4] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Shrestha S, Shen J, Giacomelli P, Scott MA, Soo C, Ting K, Péault B, Dry SM, James AW. Ang-2 but not Ang-1 expression in perivascular soft tissue tumors. J Orthop 2016; 14:147-153. [PMID: 27942190 DOI: 10.1016/j.jor.2016.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 07/03/2016] [Indexed: 12/09/2022] Open
Abstract
Perivascular soft tissue tumors are relatively uncommon neoplasms of unclear line of differentiation, although most are presumed to originate from pericytes. Previously, we reported a shared immunophenotype across these related tumor types. Here, we extend these findings to examine the expression of the pericyte markers angiopoietin-1 and -2 (Ang-1 and -2) among perivascular soft tissue tumors. Results showed consistent Ang-2 but not Ang-1 expression across tumor types. In summary, the absence of Ang-1 expression distinguishes perivascular from vascular soft tissue tumors. Ang-2 expression is present across perivascular soft tissue tumors, with some variation between histologic subtypes.
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Affiliation(s)
- Swati Shrestha
- School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jia Shen
- School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Paulina Giacomelli
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | | | - Chia Soo
- Orthopedic Hospital Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Surgery, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Kang Ting
- School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Bruno Péault
- Orthopedic Hospital Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Center for Regenerative Medicine, University of Edinburgh, Edinburgh EH8 9JT, UK
| | - Sarah M Dry
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Aaron W James
- School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Orthopedic Hospital Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Pathology, Johns Hopkins University, Baltimore, MD 21279, USA
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Mueller SB, Kontos CD. Tie1: an orphan receptor provides context for angiopoietin-2/Tie2 signaling. J Clin Invest 2016; 126:3188-91. [PMID: 27548526 DOI: 10.1172/jci89963] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Angiopoietin-1/Tie2 (ANG1/Tie2) signaling is well documented as regulating angiogenesis and vessel maturation. This pathway is complicated by involvement of the orphan receptor Tie1, which has been implicated as both a positive and negative regulator of ANG1/Tie2 signaling, and ANG2, which can serve as both a Tie2 agonist and antagonist, depending on the context. Two papers in this issue of the JCI provide new insight into this complicated pathway. Korhonen et al. reveal that Tie1 acts to modulate the effects of ANG1 and ANG2 on Tie2 in vitro and in vivo. Kim et al. demonstrate that ANG2 acts as a Tie2 agonist in non-pathological conditions, whereas in the setting of inflammation, ANG2 functions as a Tie2 antagonist and promotes vascular dysfunction. Both studies indicate that inflammation promotes cleavage of the ectodomain of Tie1 and that this cleavage event corresponds with the switch of ANG2 from a Tie2 agonist to an antagonist. The results of these studies lay the groundwork for future strategies to therapeutically exploit this pathway in diseases characterized by adverse vascular remodeling and increased permeability.
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Singh S, Manson SR, Lee H, Kim Y, Liu T, Guo Q, Geminiani JJ, Austin PF, Chen YM. Tubular Overexpression of Angiopoietin-1 Attenuates Renal Fibrosis. PLoS One 2016; 11:e0158908. [PMID: 27454431 PMCID: PMC4959721 DOI: 10.1371/journal.pone.0158908] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 06/23/2016] [Indexed: 01/22/2023] Open
Abstract
Emerging evidence has highlighted the pivotal role of microvasculature injury in the development and progression of renal fibrosis. Angiopoietin-1 (Ang-1) is a secreted vascular growth factor that binds to the endothelial-specific Tie2 receptor. Ang-1/Tie2 signaling is critical for regulating blood vessel development and modulating vascular response after injury, but is dispensable in mature, quiescent vessels. Although dysregulation of vascular endothelial growth factor (VEGF) signaling has been well studied in renal pathologies, much less is known about the role of the Ang-1/Tie2 pathway in renal interstitial fibrosis. Previous studies have shown contradicting effects of overexpressing Ang-1 systemically on renal tubulointerstitial fibrosis when different engineered forms of Ang-1 are used. Here, we investigated the impact of site-directed expression of native Ang-1 on the renal fibrogenic process and peritubular capillary network by exploiting a conditional transgenic mouse system [Pax8-rtTA/(TetO)7 Ang-1] that allows increased tubular Ang-1 production in adult mice. Using a murine unilateral ureteral obstruction (UUO) fibrosis model, we demonstrate that targeted Ang-1 overexpression attenuates myofibroblast activation and interstitial collagen I accumulation, inhibits the upregulation of transforming growth factor β1 and subsequent phosphorylation of Smad 2/3, dampens renal inflammation, and stimulates the growth of peritubular capillaries in the obstructed kidney. Our results suggest that Ang-1 is a potential therapeutic agent for targeting microvasculature injury in renal fibrosis without compromising the physiologically normal vasculature in humans.
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Affiliation(s)
- Sudhir Singh
- Division of Nephrology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Scott R. Manson
- Division of Urology, Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Heedoo Lee
- Division of Nephrology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Yeawon Kim
- Division of Nephrology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Tuoen Liu
- Oncology Division, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Qiusha Guo
- Division of Urology, Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Julio J. Geminiani
- Division of Urology, Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Paul F. Austin
- Division of Urology, Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Ying Maggie Chen
- Division of Nephrology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, United States of America
- * E-mail:
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Siavashi V, Sariri R, Nassiri SM, Esmaeilivand M, Asadian S, Cheraghi H, Barekati-Mowahed M, Rahbarghazi R. Angiogenic activity of endothelial progenitor cells through angiopoietin-1 and angiopoietin-2. Anim Cells Syst (Seoul) 2016. [DOI: 10.1080/19768354.2016.1189961] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Chan W, Ismail H, Mayaki D, Sanchez V, Tiedemann K, Davis EC, Hussain SNA. Fibulin-5 Regulates Angiopoietin-1/Tie-2 Receptor Signaling in Endothelial Cells. PLoS One 2016; 11:e0156994. [PMID: 27304216 PMCID: PMC4909301 DOI: 10.1371/journal.pone.0156994] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 05/23/2016] [Indexed: 11/24/2022] Open
Abstract
Background Fibulin-5 is an extracellular matrix glycoprotein that plays critical roles in vasculogenesis and embryonic development. Deletion of Fibulin-5 in mice results in enhanced skin vascularization and upregulation of the angiogenesis factor angiopoietin-1 (Ang-1), suggesting that Fibulin-5 functions as an angiogenesis inhibitor. In this study, we investigate the inhibitory effects of Fibulin-5 on Ang-1/TIE-2 receptor pathway signaling and cell survival in human endothelial cells. Methodology/Principal Findings Recombinant wild-type and RGE-mutant Fibulin-5 proteins were generated through stable transfection of HEK293 and CHO cells, respectively. In vitro solid phase binding assays using pure proteins revealed that wild-type Fibulin-5 does not bind to Ang-1 or TIE-2 proteins but strongly binds to heparin. Binding assays using human umbilical vein endothelial cells (HUVECs) indicated that wild-type Fibulin-5 strongly binds to cells but RGE-mutant Fibulin-5, which is incapable of binding to integrins, does not. Pre-incubation of HUVECs for 1 hr with Fibulin-5 significantly increased caspase 3/7 activity, ERK1/2 phosphorylation, and expressions of the transcription factor early growth response 1 (EGR1) and the dual-specificity phosphatase 5 (DUSP5). Fibulin-5 also strongly attenuated Ang-1-induced TIE-2 and AKT phosphorylation, decreased Ang-1-induced expressions of the transcription factors Inhibitor of DNA Binding 1 (ID1) and Kruppel-like Factor 2 (KLF2), and reversed the inhibitory effect of Ang-1 on serum deprivation-induced cytotoxicity and caspase 3/7 activity. Conclusion/Significance We conclude that Fibulin-5 strongly binds to the endothelial cell surface through heparin-sulfate proteoglycans and possibly integrins and that it exerts strong anti-angiogenic effects by reducing endothelial cell viability and interfering with the signaling pathways of the Ang-1/TIE-2 receptor axis.
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Affiliation(s)
- Wilson Chan
- Department of Anatomy and Cell Biology, McGill University, Montréal, QC, Canada
| | - Hodan Ismail
- Translational Research in Respiratory Diseases, McGill University Health Centre, and Meakins-Christie Laboratories, Department of Medicine, McGill University, Montréal, QC, Canada
| | - Dominique Mayaki
- Translational Research in Respiratory Diseases, McGill University Health Centre, and Meakins-Christie Laboratories, Department of Medicine, McGill University, Montréal, QC, Canada
| | - Veronica Sanchez
- Translational Research in Respiratory Diseases, McGill University Health Centre, and Meakins-Christie Laboratories, Department of Medicine, McGill University, Montréal, QC, Canada
| | - Kerstin Tiedemann
- Faculty of Dentistry, McGill University and Shriners Hospital for Children, Montréal, QC, Canada
| | - Elaine C. Davis
- Department of Anatomy and Cell Biology, McGill University, Montréal, QC, Canada
| | - Sabah N. A. Hussain
- Translational Research in Respiratory Diseases, McGill University Health Centre, and Meakins-Christie Laboratories, Department of Medicine, McGill University, Montréal, QC, Canada
- * E-mail:
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Ho YT, Poinard B, Kah JCY. Nanoparticle drug delivery systems and their use in cardiac tissue therapy. Nanomedicine (Lond) 2016; 11:693-714. [DOI: 10.2217/nnm.16.6] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Cardiovascular diseases make up one of the main causes of death today, with myocardial infarction and ischemic heart disease contributing a large share of the deaths reported. With mainstream clinical therapy focusing on palliative medicine following myocardial infarction, the structural changes that occur in the diseased heart will eventually lead to end-stage heart failure. Heart transplantation remains the only gold standard of cure but a shortage in donor organs pose a major problem that led to clinicians and researchers looking into alternative strategies for cardiac repair. This review will examine some alternative methods of treatment using chemokines and drugs carried by nanoparticles as drug delivering agents for the purposes of treating myocardial infarction through the promotion of revascularization. We will also provide an overview of existing studies involving such nanoparticulate drug delivery systems, their reported efficacy and the challenges facing their translation into ubiquitous clinical use.
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Affiliation(s)
- Yan Teck Ho
- Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #07–25, Singapore 117575
- NUS Graduate School of Integrative Sciences & Engineering, National University of Singapore, 28 Medical Drive, Singapore 117456
| | - Barbara Poinard
- Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #07–25, Singapore 117575
- NUS Graduate School of Integrative Sciences & Engineering, National University of Singapore, 28 Medical Drive, Singapore 117456
| | - James Chen Yong Kah
- Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #07–25, Singapore 117575
- NUS Graduate School of Integrative Sciences & Engineering, National University of Singapore, 28 Medical Drive, Singapore 117456
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Nemska S, Daubeuf F, Frossard N. Revascularization of the graft in obliterative bronchiolitis after heterotopic tracheal transplantation. Physiol Rep 2016; 4:e12690. [PMID: 26908711 PMCID: PMC4816893 DOI: 10.14814/phy2.12690] [Citation(s) in RCA: 2] [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: 10/02/2015] [Revised: 12/21/2015] [Accepted: 12/23/2015] [Indexed: 01/12/2023] Open
Abstract
Obliterative bronchiolitis is the principal long-term problem for lung transplant patients. One of the simplest and most reproducible animal models of obliterative bronchiolitis is heterotopic tracheal transplantation in subcutaneous tissue, where the graft is not primarily vascularized. We demonstrate here the rapid graft revascularization and the kinetics of expression of its angiogenic and lymphatic factors. We performed iso- and allotracheal transplantations harvested on day 0-21. The number of functional blood vessels, quantified after intravenous biotinylated dextran administration, increased from D0 (0 for both iso- and allografts) to D21 (44 ± 8 vessels/mm(2) in isografts and 22 ± 3 in allografts, P < 0.001 for both vs. D0). VEGF mRNA expression assessed by qPCR peaked on D1 (4.3-fold increase in isografts and 4.0-fold in allografts, P < 0.0001 for both vs. D0), but receded thereafter. Angiopoietin-1, involved in the maturation of the neoformed vessels, increased later on, by 6.2-fold (P < 0.05) in isografts and 11.5-fold in allografts (P < 0.001) by D21, and angiopoietin-2 by 7.8-fold in isografts (P < 0.05) and 13.8-fold in allografts (P < 0.01). Although always present in the iso- and allografts, there were significantly more and larger LYVE1(+) lymphatic vessels at D21 in allografts than in isografts. Thus, we demonstrate that tracheal grafts are rapidly revascularized by functional blood and lymphatic vessels, due to early VEGF and subsequent angiopoietins expression, which is a new advantage of this model, in addition to its ease of use, reproducibility, and viability in the absence of immunosuppressive treatment.
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Affiliation(s)
- Simona Nemska
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200 Centre National de la Recherche Scientifique-Université de Strasbourg and Laboratoire d'Excellence MEDALIS Faculté de Pharmacie, Illkirch, France
| | - François Daubeuf
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200 Centre National de la Recherche Scientifique-Université de Strasbourg and Laboratoire d'Excellence MEDALIS Faculté de Pharmacie, Illkirch, France
| | - Nelly Frossard
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200 Centre National de la Recherche Scientifique-Université de Strasbourg and Laboratoire d'Excellence MEDALIS Faculté de Pharmacie, Illkirch, France
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El-Nabarawy EA, El-Hanafy GM, Rashed LA, Yasin FS. Expression of angiopoietin-1, angiopoietin-2, and their receptor Tie2 in verruca vulgaris (common skin warts). Int J Dermatol 2015; 55:e327-31. [PMID: 26695562 DOI: 10.1111/ijd.13191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Revised: 08/15/2015] [Accepted: 08/22/2015] [Indexed: 01/20/2023]
Abstract
BACKGROUND Angiogenesis and vasodilatation are reported associated with the development of verruca vulgaris, yet vascular endothelial growth factor overexpression was not detected in the lesions of common warts. Angiopoietins, as angiogenesis factors, have not been studied before in warts. OBJECTIVES To assess tissue expression of angiopoietin 1 (Ang1), angiopoietin 2 (Ang2), and their receptor Tie2 in the lesions of common warts to try to identify their role as pro-angiogenic factors in the development of these lesions. PATIENTS AND METHODS Fifty patients with common skin warts and 50 age- and sex-matched controls were included in this study. Four millimeter punch skin biopsies were taken from warts and from normal skin of controls for the detection of gene expression of Ang1, Ang2, and Tie2 using real-time polymerase chain reaction. RESULTS The mean levels of Ang1, Ang2, and Tie2 were significantly higher in the lesions of common warts compared to the normal skin of controls (P < 0.001 for all). CONCLUSIONS Upregulation of Ang1, Ang2, and Tie2 seems to play a possible role in the angiogenesis associated with common skin warts.
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Affiliation(s)
- Eman A El-Nabarawy
- Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ghada M El-Hanafy
- Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Laila A Rashed
- Department ofMedical Biochemistry, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Fatma S Yasin
- Department of Dermatology, Bani Sweif Hospital, Cairo, Egypt
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Tsai YC, Lee CS, Chiu YW, Kuo HT, Lee SC, Hwang SJ, Kuo MC, Chen HC. Angiopoietin-2 as a Prognostic Biomarker of Major Adverse Cardiovascular Events and All-Cause Mortality in Chronic Kidney Disease. PLoS One 2015; 10:e0135181. [PMID: 26274392 PMCID: PMC4537136 DOI: 10.1371/journal.pone.0135181] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 07/18/2015] [Indexed: 11/29/2022] Open
Abstract
Background Chronic kidney disease (CKD) patients have higher prevalence of major adverse cardiovascular events (MACE) and all-cause mortality. Endothelial damage and dysfunction have been regarded as early portents of MACE in CKD patients. Angiopoietin-2 (Ang-2) impairs endothelial function and promotes aberrant neovascularization. The aim of the study was to assess the relationship between circulating Ang-2 and MACE or all-cause mortality in a CKD cohort. Methods A total of 621 pre-dialysis stage 3–5 CKD patients were enrolled from January 2006 to December 2011 and were followed up till October 2014. Plasma Ang-2 was measured in duplicate using commercial enzyme-linked immunosorbent assays (ELISA). Clinical outcomes included MACE or all-cause mortality Results Of all patients, 122 (19.8%) reached MACE or all-cause mortality. Seventy-two had MACE, 79 died, and 29 had both MACE and all-cause mortality during the follow-up period of 41.5±28.3 months. Ang-2 quintile was divided at 1405.0, 1730.0, 2160.9, and 2829.9 pg/ml. The adjusted HR of MACE or all-cause mortality for every single higher log Ang-2 was 5.69 (95% CI: 2.00–16.20, P = 0.001). The adjusted HR of MACE or all-cause mortality was 2.48 (95% CI: 1.25–4.90) for patients of quintile 5 compared with those of quintile 1. A longitudinal association between MACE or all-cause mortality and stepwise increases in Ang-2 levels was found (P-trend = 0.008). Conclusions Ang-2 is an independent predictor of MACE or all-cause mortality in CKD patients. Additional study is necessary in order to explore the mechanism of the association of Ang-2 with adverse outcomes in patients with CKD.
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Affiliation(s)
- Yi-Chun Tsai
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Division of Nephrology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Renal Care, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chee-Siong Lee
- Division of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Division of Cardiology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yi-Wen Chiu
- Division of Nephrology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Renal Care, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hung-Tien Kuo
- Division of Nephrology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Renal Care, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Su-Chu Lee
- Division of Nephrology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Shang-Jyh Hwang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Nephrology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Renal Care, Kaohsiung Medical University, Kaohsiung, Taiwan
- Institute of Population Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Mei-Chuan Kuo
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Nephrology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Renal Care, Kaohsiung Medical University, Kaohsiung, Taiwan
- * E-mail:
| | - Hung-Chun Chen
- Division of Nephrology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Renal Care, Kaohsiung Medical University, Kaohsiung, Taiwan
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Karakus S, Bozoklu Akkar O, Yildiz C, Sancakdar E, Cetin M, Cetin A. Serum levels of ET-1, M30, and angiopoietins-1 and -2 in HELLP syndrome and preeclampsia compared to controls. Arch Gynecol Obstet 2015; 293:351-9. [PMID: 26138305 DOI: 10.1007/s00404-015-3803-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Accepted: 06/23/2015] [Indexed: 11/26/2022]
Abstract
PURPOSE We aimed to compare the serum levels of ET-1, M30, and Angs-1 and -2 in patients with preeclampsia or HELLP syndrome, and normal controls. METHODS In this cross-sectional study of 74 pregnant women, serum levels of ET-1, M30, and Angs-1 and -2 were measured in preeclamptic patients with or without HELLP syndrome. 74 pregnant women; 37 had healthy pregnancies, 25 had preeclampsia (PE), and 12 had HELLP syndrome. RESULTS The age, body mass index, gravidity, and parity of patients with normal pregnancy, PE, and HELLP syndrome were comparable (p > 0.05). In HELLP syndrome, compared to healthy or preeclamptic pregnancies, platelet count was lower (p < 0.05) and the values of hepatic function tests were higher (p < 0.05). In HELLP syndrome, ET-1, M30, and Ang-2 were higher compared to healthy or preeclamptic pregnancies (p < 0.05); however, they increased in preeclamptic pregnancies compared to healthy pregnancies though not significant (p > 0.05). In PE or HELLP syndrome, Ang-1 was higher compared to a healthy pregnancy (p < 0.05); however, in HELLP syndrome, it was also higher than in PE though not significant (p > 0.05). We found no significant correlation among these biomarkers and hematological and biochemical parameters (p > 0.05). CONCLUSION For the diagnosis of HELLP syndrome, increased levels of ET-1, M30, and Angs-1 and -2 appear as promising biomarkers after determination of their standardized threshold levels after further studies. As an apoptosis-related biomarker, serum M30 level has a merit to be the most promising test for prediction or differential diagnosis of HELLP syndrome in PE patients.
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Affiliation(s)
- Savas Karakus
- Department of Obstetrics and Gynecology, Cumhuriyet University School of Medicine, 58140, Sivas, Turkey.
| | - Ozlem Bozoklu Akkar
- Department of Obstetrics and Gynecology, Cumhuriyet University School of Medicine, 58140, Sivas, Turkey.
| | - Caglar Yildiz
- Department of Obstetrics and Gynecology, Cumhuriyet University School of Medicine, 58140, Sivas, Turkey.
| | - Enver Sancakdar
- Department of Biochemistry, Cumhuriyet University School of Medicine, 58140, Sivas, Turkey.
| | - Meral Cetin
- Department of Obstetrics and Gynecology, Cumhuriyet University School of Medicine, 58140, Sivas, Turkey.
| | - Ali Cetin
- Department of Obstetrics and Gynecology, Cumhuriyet University School of Medicine, 58140, Sivas, Turkey.
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Regulation of Angiogenic Functions by Angiopoietins through Calcium-Dependent Signaling Pathways. BIOMED RESEARCH INTERNATIONAL 2015; 2015:965271. [PMID: 26146638 PMCID: PMC4471310 DOI: 10.1155/2015/965271] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 02/12/2015] [Accepted: 02/15/2015] [Indexed: 12/13/2022]
Abstract
Angiopoietins are vascular factors essential for blood vessel assembly and correct organization and maturation. This study describes a novel calcium-dependent machinery activated through Angiopoietin-1/2-Tie receptor system in HUVECs monolayer. Both cytokines were found to elicit intracellular calcium mobilization. Targeting intracellular Ca2+ signaling, antagonizing IP3 with 2-APB or cADPR with 8Br-cADPR, was found to modulate in vitro angiogenic responses to Angiopoietins in a specific way. 2-APB and 8Br-cADPR impaired the phosphorylation of AKT and FAK induced by Ang-1 and Ang-2. On the other hand, phosphorylation of ERK1/2 and p38, as well as cell proliferation, was not affected by either inhibitor. The ability of ECs to migrate following Angs stimulation, evaluated by “scratch assay,” was reduced by either 2-APB or 8Br-cADPR following Ang-2 stimulation and only slightly affected by 2-APB in cells stimulated with Ang-1. These results identify a novel calcium-dependent machinery involved in the complex interplay regulating angiogenic processes showing that IP3- and cADPR-induced Ca2+ release specifically regulates distinct Angs-mediated angiogenic steps.
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Bhattacharya D, Chaudhuri S, Singh MK, Chaudhuri S. T11TS inhibits Angiopoietin-1/Tie-2 signaling, EGFR activation and Raf/MEK/ERK pathway in brain endothelial cells restraining angiogenesis in glioma model. Exp Mol Pathol 2015; 98:455-66. [DOI: 10.1016/j.yexmp.2015.03.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 03/17/2015] [Indexed: 12/31/2022]
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Ebihara I, Hirayama K, Nagai M, Koda M, Gunji M, Okubo Y, Katayama T, Sato C, Usui J, Yamagata K, Kobayashi M. Soluble vascular endothelial-cadherin levels in patients with sepsis treated with direct hemoperfusion with a polymyxin B-immobilized fiber column. Ther Apher Dial 2015; 18:272-8. [PMID: 24965294 DOI: 10.1111/1744-9987.12215] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Capillary permeability is a tightly regulated feature of microcirculation in all organ beds; however, in sepsis this feature is fundamentally altered. Several molecules are investigated as associated factors with capillary permeability and vascular endothelial (VE)-cadherin internalization by vascular endothelial growth factor (VEGF)-induced signaling through VEGF receptors leads to increased vascular endothelial cell detachment and trans-endothelial permeability. We investigated serum soluble VE-cadherin levels in septic patients. An enzyme-linked immunoassay was used to measure serum soluble VE-cadherin levels in 47 septic patients treated by direct hemoperfusion with a polymyxin B-immobilized fiber column (DHP-PMX). The serum soluble VE-cadherin level of septic patients before PMX-DHP was 3424.1 ± 2033.0 ng/mL, which was significantly lower than that of the controls (5862.0 ± 1521.2 ng/mL; P < 0.0001). The time course of serum soluble VE-cadherin levels remained unchanged during PMX-DHP therapy. There was no significant difference in serum soluble VE-cadherin levels before PMX-DHP therapy between survivors and non-survivors, and there was no significant difference in those levels between the groups at any time after the initiation of PMX-DHP therapy. There was no correlation between soluble VE-cadherin levels and clinical data, except white blood cell count (r = -0.277, P = 0.0009). There was no correlation between soluble VE-cadherin levels and the levels of angiopoietin 1 and 2. In summary, the relationship between VE-cadherin and capillary permeability in sepsis could not be demonstrated. Soluble VE-cadherins are not reflected in the balance between intercellular junction plasticity and integrity, but VE-cadherin stabilization by its phosphorylation or internalization may be associated with capillary permeability.
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Affiliation(s)
- Itaru Ebihara
- Department of Nephrology, Mito Saiseikai General Hospital, Mito, Japan
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Kawai T, Katagiri W, Osugi M, Sugimura Y, Hibi H, Ueda M. Secretomes from bone marrow-derived mesenchymal stromal cells enhance periodontal tissue regeneration. Cytotherapy 2015; 17:369-81. [PMID: 25595330 DOI: 10.1016/j.jcyt.2014.11.009] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 11/06/2014] [Accepted: 11/25/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND AIMS Periodontal tissue regeneration with the use of mesenchymal stromal cells (MSCs) has been regarded as a future cell-based therapy. However, low survival rates and the potential tumorigenicity of implanted MSCs could undermine the efficacy of cell-based therapy. The use of conditioned media from MSCs (MSC-CM) may be a feasible approach to overcome these limitations. The aim of this study was to confirm the effect of MSC-CM on periodontal regeneration. METHODS MSC-CM were collected during their cultivation. The concentrations of the growth factors in MSC-CM were measured with the use of enzyme-linked immunoassay. Rat MSCs (rMSCs) and human umbilical vein endothelial cells cultured in MSC-CM were assessed on wound-healing and angiogenesis. The expressions of osteogenetic- and angiogenic-related genes of rMSCs cultured in MSC-CM were quantified by means of real-time reverse transcriptase-polymerase chain reaction analysis. In vivo, periodontal defects were prepared in the rat models and the collagen sponges with MSC-CM were implanted. RESULTS MSC-CM includes insulin-like growth factor-1, vascular endothelial growth factor, transforming growth factor-β1 and hepatocyte growth factor. In vitro, wound-healing and angiogenesis increased significantly in MSC-CM. The levels of expression of osteogenetic- and angiogenic-related genes were significantly upregulated in rMSCs cultured with MSC-CM. In vivo, in the MSC-CM group, 2 weeks after implantation, immunohistochemical analysis showed several CD31-, CD105-or FLK-1-positive cells occurring frequently. At 4 weeks after implantation, regenerated periodontal tissue was observed in MSC-CM groups. CONCLUSIONS The use of MSC-CM may be an alternative therapy for periodontal tissue regeneration because several cytokines included in MSC-CM will contribute to many processes of complicated periodontal tissue regeneration.
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Affiliation(s)
- Takamasa Kawai
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Wataru Katagiri
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Masashi Osugi
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukiko Sugimura
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideharu Hibi
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Minoru Ueda
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Aubin K, Vincent C, Proulx M, Mayrand D, Fradette J. Creating capillary networks within human engineered tissues: impact of adipocytes and their secretory products. Acta Biomater 2015; 11:333-45. [PMID: 25278444 DOI: 10.1016/j.actbio.2014.09.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 09/03/2014] [Accepted: 09/24/2014] [Indexed: 12/12/2022]
Abstract
The development of tissue-engineered substitutes of substantial volume is closely associated with the need to ensure rapid vascularization upon grafting. Strategies promoting angiogenesis include the in vitro formation of capillary-like networks within engineered substitutes. We generated both connective and adipose tissues based on a cell sheet technology using human adipose-derived stromal cells. This study evaluates the morphology and extent of the capillary networks that developed upon seeding of human microvascular endothelial cells during tissue production. We posited that adipocyte presence/secretory products could modulate the resulting capillary network when compared to connective substitutes. Analyses including confocal imaging of CD31-labeled capillary-like networks indicated slight differences in their morphological appearance. However, the total volume occupied by the networks as well as the frequency distribution of the structure's volumes were similar between connective and adipose tissues. The average diameter of the capillary structures tended to be 20% higher in reconstructed adipose tissues. Quantification of pro-angiogenic molecules in conditioned media showed greater amounts of leptin (15×), angiopoietin-1 (3.4×) and HGF (1.7×) secreted from adipose than connective tissues at the time of endothelial cell seeding. However, this difference was attenuated during the following coculture period in endothelial cell-containing media, correlating with the minor differences noted between the networks. Taken together, we developed a protocol allowing reconstruction of both connective and adipose tissues featuring well-developed capillary networks in vitro. We performed a detailed characterization of the network architecture within engineered tissues that is relevant for graft assessment before implantation as well as for in vitro screening of angiogenic modulators using three-dimensional models.
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Kappou D, Sifakis S, Androutsopoulos V, Konstantinidou A, Spandidos D, Papantoniou N. Placental mRNA expression of angiopoietins (Ang)-1, Ang-2 and their receptor Tie-2 is altered in pregnancies complicated by preeclampsia. Placenta 2014; 35:718-23. [DOI: 10.1016/j.placenta.2014.07.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 06/29/2014] [Accepted: 07/02/2014] [Indexed: 12/17/2022]
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Pourrajab F, Babaei Zarch M, Baghi Yazdi M, Rahimi Zarchi A, Vakili Zarch A. Application of stem cell/growth factor system, as a multimodal therapy approach in regenerative medicine to improve cell therapy yields. Int J Cardiol 2014; 173:12-9. [PMID: 24612559 DOI: 10.1016/j.ijcard.2014.02.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 12/26/2013] [Accepted: 02/08/2014] [Indexed: 12/13/2022]
Abstract
Stem cells hold a great promise for regenerative medicine, especially for replacing cells in infarcted organ that hardly have any intrinsic renewal capacity, including heart and brain. Signaling pathways that regulate pluripotency or lineage-specific gene and protein expression have been the major focus of stem cell research. Between them, there are some well known signaling pathways such as GF/GFR systems, SDF-1α/CXC4 ligand receptor interaction and PI3K/Akt signaling, and cytokines may regulate cell fate decisions, and can be utilized to positively influence cell therapy outcomes or accentuate synergistic compliance. For example, contributing factors in the progression of heart failure are both the loss of cardiomyocytes after myocardial infarction, and the absence of an adequate endogenous repair signaling. Combining cell engraftment with therapeutic signaling factor delivery is more exciting in terms of host progenitor/donor stem cell survival and proliferation. Thus stem cell-based therapy, besides triggering signaling pathways through GF/GFR systems can become a realistic option in regenerative processes for replacing lost cells and reconstituting the damaged organ, as before.
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Affiliation(s)
- Fatemeh Pourrajab
- School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Department of Clinical Biochemistry and Molecular Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | | | | | - Abolfazl Rahimi Zarchi
- School of Nursing, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Abbas Vakili Zarch
- School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Silvestre JS, Smadja DM, Lévy BI. Postischemic revascularization: from cellular and molecular mechanisms to clinical applications. Physiol Rev 2013; 93:1743-802. [PMID: 24137021 DOI: 10.1152/physrev.00006.2013] [Citation(s) in RCA: 171] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
After the onset of ischemia, cardiac or skeletal muscle undergoes a continuum of molecular, cellular, and extracellular responses that determine the function and the remodeling of the ischemic tissue. Hypoxia-related pathways, immunoinflammatory balance, circulating or local vascular progenitor cells, as well as changes in hemodynamical forces within vascular wall trigger all the processes regulating vascular homeostasis, including vasculogenesis, angiogenesis, arteriogenesis, and collateral growth, which act in concert to establish a functional vascular network in ischemic zones. In patients with ischemic diseases, most of the cellular (mainly those involving bone marrow-derived cells and local stem/progenitor cells) and molecular mechanisms involved in the activation of vessel growth and vascular remodeling are markedly impaired by the deleterious microenvironment characterized by fibrosis, inflammation, hypoperfusion, and inhibition of endogenous angiogenic and regenerative programs. Furthermore, cardiovascular risk factors, including diabetes, hypercholesterolemia, hypertension, diabetes, and aging, constitute a deleterious macroenvironment that participates to the abrogation of postischemic revascularization and tissue regeneration observed in these patient populations. Thus stimulation of vessel growth and/or remodeling has emerged as a new therapeutic option in patients with ischemic diseases. Many strategies of therapeutic revascularization, based on the administration of growth factors or stem/progenitor cells from diverse sources, have been proposed and are currently tested in patients with peripheral arterial disease or cardiac diseases. This review provides an overview from our current knowledge regarding molecular and cellular mechanisms involved in postischemic revascularization, as well as advances in the clinical application of such strategies of therapeutic revascularization.
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Echavarria R, Hussain SNA. Regulation of angiopoietin-1/Tie-2 receptor signaling in endothelial cells by dual-specificity phosphatases 1, 4, and 5. J Am Heart Assoc 2013; 2:e000571. [PMID: 24308939 PMCID: PMC3886752 DOI: 10.1161/jaha.113.000571] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Angiopoietin‐1 (Ang‐1) promotes survival and migration of endothelial cells, in part through the activation of mitogen‐activated protein kinase (MAPK) pathways downstream of Tie‐2 receptors. Dual‐specificity phosphatases (DUSPs) dephosphorylate phosphotyrosine and phosphoserine/phosphothreonine residues on target MAPKs. The mechanisms by which DUSPs modulate MAPK activation in Ang‐1/Tie‐2 receptor signaling are unknown in endothelial cells. Methods and Results Expression of various DUSPs in human umbilical vein endothelial cells exposed to Ang‐1 was measured. The functional roles of DUSPs in Ang‐1‐induced regulation of MAPK activation, endothelial cell survival, migration, differentiation, and permeability were measured using selective siRNA oligos. Ang‐1 differentially induces DUSP1, DUSP4, and DUSP5 in human umbilical vein endothelial cells through activation of the PI‐3 kinase, ERK1/2, p38, and SAPK/JNK pathways. Lack‐of‐function siRNA screening revealed that DUSP1 preferentially dephosphorylates p38 protein and is involved in Ang‐1‐induced cell migration and differentiation. DUSP4 preferentially dephosphorylates ERK1/2, p38, and SAPK/JNK proteins and, under conditions of serum deprivation, is involved in Ang‐1‐induced cell migration, several antiapoptotic effects, and differentiation. DUSP5 preferentially dephosphorylates ERK1/2 proteins and is involved in cell survival and inhibition of permeability. Conclusions DUSP1, DUSP4, and DUSP5 differentially modulate MAPK signaling pathways downstream of Tie‐2 receptors, thus highlighting the importance of these phosphatases to Ang‐1‐induced angiogenesis.
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Affiliation(s)
- Raquel Echavarria
- Department of Critical Care Medicine, McGill University Health Centre, Montréal, Québec, Canada
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