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Endothelial progenitor cells

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https://www.readbyqxmd.com/read/29777792/human-cancer-cells-suppress-behaviors-of-endothelial-progenitor-cells-through-mir-21-targeting-il6r
#1
Wenbin Wang, Xiao Yuan, Aman Xu, Xingyang Zhu, Yanqing Zhan, Shuanhu Wang, Mulin Liu
Deep vein thrombosis (DVT) is a severe clinical process and has a high rate of fatality. Cancer patients have a high incidence rate of venous thrombosis complication and increase the mortality of cancer patients for 2-8 times. The mechanisms involved in human cancers and venous thrombosis remains unclear. In this study, we determined miR-21 expressed higher in human breast cancer, colon cancer and hepatocellular cancer tissues compared with normal tissues and expressed higher in exosomes of breast cancer and hepatocellular cancer cell lines compared with normal cells...
May 16, 2018: Microvascular Research
https://www.readbyqxmd.com/read/29777508/endothelial-progenitor-cells-in-heart-failure-an-authentic-expectation-for-potential-future-use-and-a-lack-of-universal-definition
#2
REVIEW
Andie H Djohan, Ching-Hui Sia, Poay Sian Lee, Kian-Keong Poh
Congestive heart failure (CHF) is a prevalent disease (especially among the elderly) with high mortality and morbidity rates. The pathological hallmark of CHF is a loss of cardiomyocytes leading to cardiac fibrosis and dysfunctional cardiac remodeling, which culminates in organ failure. Endothelial progenitor cells (EPCs) are bone marrow-derived cells that contribute to maintenance of the integrity of endothelial wall and protect ischemic myocardium through forming new blood vessels (vasculogenesis) or proliferation of pre-existing vasculature (angiogenesis)...
May 17, 2018: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29777228/effects-of-clomiphene-citrate-on-male-obesity-associated-hypogonadism-a-randomized-double-blind-placebo-controlled-study
#3
Andressa Heimbecher Soares, Nidia Celeste Horie, Lucas Augusto Piccinin Chiang, Bruno Caramelli, Mariana Gomes Matheus, Alexandre Holthausen Campos, Luciana Cavalheiro Marti, Fernanda Agostini Rocha, Marcio C Mancini, Elaine Maria Frade Costa, Cintia Cercato
BACKGROUND: Obesity causes secondary hypogonadism (HG) in men. Standard testosterone (T) replacement therapy improves metabolic parameters but leads to infertility. OBJECTIVE: To evaluate clomiphene citrate (CC) treatment of adult men with male obesity-associated secondary hypogonadism (MOSH). DESIGN: Single-center, randomized, double-blind, placebo-controlled trial. PARTICIPANTS: Seventy-eight men aged 36.5 ± 7...
May 17, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29773646/a-blood-capillary-plexus-derived-population-of-progenitor-cells-contributes-to-genesis-of-the-dermal-lymphatic-vasculature-during-embryonic-development
#4
Cathy Pichol-Thievend, Kelly L Betterman, Xiaolei Liu, Wanshu Ma, Renae Skoczylas, Emmanuelle Lesieur, Frank L Bos, Dorte Schulte, Stefan Schulte-Merker, Benjamin M Hogan, Guillermo Oliver, Natasha L Harvey, Mathias Francois
Despite the essential role of the lymphatic vasculature in tissue homeostasis and disease, knowledge of the organ-specific origins of lymphatic endothelial progenitor cells remains limited. The assumption that most murine embryonic lymphatic endothelial cells (LECs) are venous derived has recently been challenged. Here, we show that the embryonic dermal blood capillary plexus constitutes an additional, local source of LECs that contributes to the formation of the dermal lymphatic vascular network. We describe a novel mechanism whereby rare PROX1-positive endothelial cells exit the capillary plexus in a Ccbe1 -dependent manner to establish discrete LEC clusters...
May 17, 2018: Development
https://www.readbyqxmd.com/read/29773058/non-cardiomyocytes-in-heart-regeneration
#5
Jie Feng, Yandong Li, Yu Nie
Heart failure represents a challenging clinical and public health problem and is associated with significant morbidity and mortality. Mechanistically, loss of cardiomyocytes leads to decompensated ventricular remodeling, which eventually progressed to cardiac failure. Regenerative medicine aimed to supplement functional cardiomyocytes is supposedly a promising approach for the effective treatment of heart failure. Over the past decades, investigations on heart regeneration have revealed the regulating networks of cardiomyocyte proliferation...
May 17, 2018: Current Drug Targets
https://www.readbyqxmd.com/read/29771991/progenitor-renin-lineage-cells-are-not-involved-in-the-regeneration-of-glomerular-endothelial-cells-during-experimental-renal-thrombotic-microangiopathy
#6
Leo Ruhnke, Jan Sradnick, Moath Al-Mekhlafi, Michael Gerlach, Florian Gembardt, Bernd Hohenstein, Vladimir T Todorov, Christian Hugo
Endothelial cells (EC) frequently undergo primary or secondary injury during kidney disease such as thrombotic microangiopathy or glomerulonephritis. Renin Lineage Cells (RLCs) serve as a progenitor cell niche after glomerular damage in the adult kidney. However, it is not clear whether RLCs also contribute to endothelial replenishment in the glomerulus following endothelial injury. Therefore, we investigated the role of RLCs as a potential progenitor niche for glomerular endothelial regeneration. We used an inducible tet-on triple-transgenic reporter strain mRen-rtTAm2/LC1/LacZ to pulse-label the renin-producing RLCs in adult mice...
2018: PloS One
https://www.readbyqxmd.com/read/29771429/the-relationship-between-number-and-function-of-epcs-and-concentration-of-vegf165-and-sdf-1-in-coronary-artery-spasm
#7
Z-Q Sheng, Y-F Li, K-L Zheng, H-H Lu, J Xie, H Wu, B Xu
OBJECTIVE: We aimed at investigating the functions of endothelial progenitor cells (EPCs) in the pathophysiology of coronary artery spasm (CAS) and coronary artery disease (CAD), as well as to evaluate the correlation of these diseases with the number and function of EPCs, the plasma concentration of vascular endothelial growth factor 165 (VEGF165) and stromal cell-derived factor 1 (SDF-1). PATIENTS AND METHODS: Participants were recruited into three groups, CAS, CAD and the control...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29771426/the-relationship-between-the-levels-and-function-of-endothelial-progenitor-cells-and-factor-v-leiden-and-protein-c-deficiency-in-patients-with-primary-budd-chiari-syndrome
#8
Z-Y Guan, C-W Yu, T Song, Y Gao
OBJECTIVE: Budd-Chiari syndrome (BCS) is a life-threatening hepatic disease characterized by hepatic venous obstruction at the level of hepatic vein, hepatic venules, or inferior vena cava. No evidence reported the relationship between the endothelial progenitor cells and the deficiency of factor V Leiden and protein C in patients with primary Budd-Chiari syndrome. PATIENTS AND METHODS: We recruited participants between June 2014 and July 2015. For primary BCS group, 28 patients were collected...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29767793/inhalation-of-house-dust-and-ozone-alters-systemic-levels-of-endothelial-progenitor-cells-oxidative-stress-and-inflammation-in-elderly-subjects
#9
Kim Jantzen, Annie Jensen, Ali Kermanizadeh, Grethe Elholm, Torben Sigsgaard, Peter Møller, Martin Roursgaard, Steffen Loft
Ambient air pollution including ozone and especially particulate matter represents important causes of cardiovascular disease. However, there is limited knowledge on indoor air dust with respect to this risk and the potential interactions between dust and ozone. Here, we exposed 23 healthy elderly subjects for 5.5 h, to either clean air, house dust at 275 µg/m3 (diameter < 2.5 µm), ozone at 100 ppb or combined house dust and ozone in a double-blinded randomized cross-over study. The combined house dust and ozone exposure was associated with a 48% (95% CI 24%-65%) decrease as compared with the clean air exposure, in CD34+KDR+ late endothelial progenitor cells (EPCs) per leukocyte in the blood shortly after exposure, whereas none of the single exposures resulted in a significant effect...
May 14, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29763891/endothelial-progenitor-cells-and-kidney-diseases
#10
Abdullah Ozkok, Alaattin Yildiz
Endothelial progenitor cells (EPC) are bone marrow derived or tissue-resident cells that play major roles in the maintenance of vascular integrity and repair of endothelial damage. Although EPCs may be capable of directly engrafting and regenerating the endothelium, the most important effects of EPCs seem to be depended on paracrine effects. In recent studies, specific microvesicles and mRNAs have been found to mediate the pro-angiogenic and regenerative effects of EPCs on endothelium. EPC counts have important prognostic implications in cardiovascular diseases (CVD)...
May 10, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29760742/correlation-between-therapeutic-efficacy-of-cd34-cell-treatment-and-directed-in-vivo-angiogenesis-in-patients-with-end-stage-diffuse-coronary-artery-disease
#11
Tien-Hung Huang, Cheuk-Kwan Sun, Yi-Ling Chen, Pei-Hsun Sung, Chi-Hsiang Chu, Mel S Lee, Yuan-Ping Lin, Hon-Kan Yip, Fan-Yen Lee
Background: This study was aimed at testing the association between the therapeutic efficacy of CD34+ cell treatment in patients with end-stage diffuse coronary artery disease as reflected in angiographic grading and results of directed in vivo angiogenesis assay (DIVAA) on their isolated peripheral blood mononuclear cell- (PBMC-) derived endothelial progenitor cells (EPCs). Methods: Angiographic grades (0: <5%; 1: 5-35%; 2: 35-75%; 3: >75%) which presented the improvement of vessel density pre- and post-CD34+ treatment were given to 30 patients with end-stage diffuse coronary artery disease having received CD34+ cell treatment...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29760727/expanded-cd133-cells-from-human-umbilical-cord-blood-improved-heart-function-in-rats-after-severe-myocardial-infarction
#12
Alejandro Correa, Gabriel Salles Ottoboni, Alexandra Cristina Senegaglia, Luiz Guilherme Achcar Capriglione, Nelson Itiro Miyague, Lidiane Maria Boldrini Leite, Valderez Ravaglio Jamur, Carmen Lúcia Kuniyoshi Rebelatto, Márcia Olandoski, Paulo Roberto Slud Brofman
Pharmacological approaches are partially effective in limiting infarct size. Cell therapies using a cell population enriched with endothelial progenitor cells (EPCs) CD133+ have opened new perspectives for the treatment of ischemic areas after infarction. This preclinical study evaluated the effect of intramyocardial transplantation of purified or expanded human umbilical cord blood-derived CD133+ cells on the recovery of rats following acute myocardial infarction (AMI). Histology studies, electrocardiogram, and fluorescence in situ hybridization (FISH) were used to evaluate heart recovery...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29760722/microrna-126-priming-enhances-functions-of-endothelial-progenitor-cells-under-physiological-and-hypoxic-conditions-and-their-therapeutic-efficacy-in-cerebral-ischemic-damage
#13
Qunwen Pan, Jieyi Zheng, Donghui Du, Xiaorong Liao, Chunlian Ma, Yi Yang, Yanyu Chen, Wangtao Zhong, Xiaotang Ma
Endothelial progenitor cells (EPCs) have shown the potential for treating ischemic stroke (IS), while microRNA-126 (miR-126) is reported to have beneficial effects on endothelial function and angiogenesis. In this study, we investigated the effects of miR-126 overexpression on EPCs and explore the efficacy of miR-126-primed EPCs (EPCmiR-126 ) in treating IS. The effects of miR-126 overexpression on EPC proliferation, migratory, tube formation capacity, reactive oxygen species (ROS) production, and nitric oxide (NO) generation were determined...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29760721/decreased-count-and-dysfunction-of-circulating-epcs-in-postmenopausal-hypercholesterolemic-females-via-reducing-no-production
#14
Ying Luo, Quan-Neng Yan, Wan-Zhou Wu, Fan-Yan Luo
Endothelial progenitor cells (EPCs) contribute to the endogenous endothelial repair program during hypercholesterolemia. EPC count and migratory and proliferative capacities remain unchanged in the premenopausal female with hypercholesterolemia. However, the changes of count and activity of circulating EPCs in the hypercholesterolemic postmenopausal females are unknown. Here, we find that the migratory and proliferative capacities of circulating EPCs were decreased in patients with hypercholesterolemia versus normocholesterolemia...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29760458/hyperglycemia-does-not-affect-tissue-repair-responses-in-shear-stress-induced-atherosclerotic-plaques-in-apoe-mice
#15
Sabrina Hsiung, Anki Knutsson, Jenifer Vallejo, Pontus Dunér, Suvi E Heinonen, Ann-Cathrine Jönsson-Rylander, Eva Bengtsson, Jan Nilsson, Anna Hultgårdh-Nilsson
The mechanisms responsible for macrovascular complications in diabetes remain to be fully understood. Recent studies have identified impaired vascular repair as a possible cause of plaque vulnerability in diabetes. This notion is supported by observations of a reduced content of fibrous proteins and smooth muscle cell mitogens in carotid endarterectomy from diabetic patients along with findings of decreased circulating levels of endothelial progenitor cells. In the present study we used a diabetic mouse model to characterize how hyperglycemia affects arterial repair responses...
May 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29759080/zika-virus-crosses-an-in-vitro-human-blood-brain-barrier-model
#16
Judie B Alimonti, Maria Ribecco-Lutkiewicz, Caroline Sodja, Anna Jezierski, Danica B Stanimirovic, Qing Liu, Arsalan S Haqqani, Wayne Conlan, Mahmud Bani-Yaghoub
Zika virus (ZIKV) is a flavivirus that is highly neurotropic causing congenital abnormalities and neurological damage to the central nervous systems (CNS). In this study, we used a human induced pluripotent stem cell (iPSC)-derived blood brain barrier (BBB) model to demonstrate that ZIKV can infect brain endothelial cells (i-BECs) without compromising the BBB barrier integrity or permeability. Although no disruption to the BBB was observed post-infection, ZIKV particles were released on the abluminal side of the BBB model and infected underlying iPSC-derived neural progenitor cells (i-NPs)...
May 15, 2018: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/29755107/kai1-cd82-genetically-engineered-endothelial-progenitor-cells-inhibit-metastasis-of-human-nasopharyngeal-carcinoma-in-a-mouse-model
#17
Gengming Wang, Lei Zhang, Yan Zhou, Qian Sun, Hongbo Xu, Feng Cai, Ping Xiang, Zhendong Chen, Hao Jiang
BACKGROUND Endothelial progenitor cells (EPCs) are regarded as promising targeted vectors for delivering therapeutic genes or agents in cancer therapy. The purpose of this study was to investigate the role of intravenously administered KAI1/CD82 genetically transduced EPCs in the tumorigenesis and metastasis of nasopharyngeal carcinoma (NPC). MATERIAL AND METHODS EPCs were isolated from human umbilical cord blood, expanded in culture, and stably transduced with lentiviral vectors expressing KAI1/CD82. The KAI1/CD82 EPCs were injected intravenously into nude mice bearing human NPC xenografts...
May 14, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29752466/mir-5591-5p-regulates-the-effect-of-adscs-in-repairing-diabetic-wound-via-targeting-ages-ager-jnk-signaling-axis
#18
Qiang Li, Sizhan Xia, Yating Yin, Yanping Guo, Feifei Chen, Peisheng Jin
Advanced glycation end products/advanced glycation end products receptor (AGEs/AGER) interaction triggers reactive oxygen species (ROS) generation and activates downstream signal pathways and induces apoptosis in endothelial progenitor cells. A number of studies have revealed the involvement of microRNAs (miRNAs) in regulating intracellular ROS production and apoptosis. However, few studies explore the role of miRNAs in regulating the effect of adipose tissue-derived stem cells (ADSCs) in repairing diabetic wound and the associated cellular mechanisms remain unclear...
May 11, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29751775/cxcl12-engineered-endothelial-progenitor-cells-enhance-neurogenesis-and-angiogenesis-after-ischemic-brain-injury-in-mice
#19
Yaning Li, Shuang Chang, Wanlu Li, Guanghui Tang, Yuanyuan Ma, Yanqun Liu, Fang Yuan, Zhijun Zhang, Guo-Yuan Yang, Yongting Wang
BACKGROUND: Ischemic stroke causes a multitude of brain damage. Neurovascular injury and myelin sheath degradation are two manifestations of ischemic brain damage. Therapeutic strategies aiming only at repairing the neural components or the vessels cannot efficiently restore neurological function. Endothelial progenitor cells (EPCs) have the advantages of both promoting angiogenesis and secreting trophic factors that would promote neurogenesis. Chemokine cxcl12 gene therapy has also been shown to promote angiogenesis, neurogenesis, and remyelination, attracting EPCs, neural progenitor cells, and oligodendrocyte progenitor cells (OPCs) to the injured sites of the brain...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29750999/modeling-triple-negative-breast-cancer-heterogeneity-effects-of-stromal-macrophages-fibroblasts-and-tumor-vasculature
#20
Kerri-Ann Norton, Kideok Jin, Aleksander S Popel
A hallmark of breast tumors is its spatial heterogeneity that includes its distribution of cancer stem cells and progenitor cells, but also heterogeneity in the tumor microenvironment. In this study we focus on the contributions of stromal cells, specifically macrophages, fibroblasts, and endothelial cells on tumor progression. We develop a computational model of triple-negative breast cancer based on our previous work and expand it to include macrophage infiltration, fibroblasts, and angiogenesis. In vitro studies have shown that the secretomes of tumor-educated macrophages and fibroblasts increase both the migration and proliferation rates of triple-negative breast cancer cells...
May 8, 2018: Journal of Theoretical Biology
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