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Endothelium progenitor cell

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https://www.readbyqxmd.com/read/28641611/-dmso-promotes-hematopoietic-differentiation-of-human-embryonic-stem-cells-in-vitro
#1
Hong-Tao Wang, Meng-Ge Wang, Xin Liu, Pei Su, Lei-Sheng Zhang, Cui-Cui Liu, Yu Wang, Dan Wu, Qian Tu, Jia-Xi Zhou
OBJECTIVE: To explore the role of dimethyl sulfoxide (DMSO) in the hematopoietic differentiation of human embryonic stem cells (hESCs). METHODS: The role of DMSO in hematopoietic differentiation of hESC was investigated by using a established stepwise hematopoietic differentiation system from hESC, immunofluorescouse assay and flow cytometry. Furthermore, the window phase of DMSO action was explored by adding it to the different stage of hematopoietic differentiation...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28623398/endothelial-vascular-markers-in-coronary-surgery
#2
Diana M Valencia-Nuñez, Willy Kreutler, Javier Moya-Gonzalez, Pedro Alados-Arboledas, Ignacio Muñoz-Carvajal, Andrés Carmona, Rafael Ramirez-Chamond, Julia Carracedo-Añon
Coronary heart disease is associated with high morbidity and mortality. Endothelial dysfunction in affected patients is linked to long-term atherosclerotic disease progression and cardiovascular event rates. The present paper reports on changes in the levels of endothelial progenitor cells (VEGFR2/CD133/CD34), essential for endothelial repair, and of endothelial microvesicles (CD31/annexin V) as indicators of endothelial lesion, in patients undergoing coronary bypass surgery with respect both to baseline levels and to counts in healthy subjects...
June 16, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28619079/association-between-high-density-lipoprotein-cholesterol-and-hypertension-in-relation-to-circulating-cd34-positive-cell-levels
#3
Yuji Shimizu, Shimpei Sato, Jun Koyamatsu, Hirotomo Yamanashi, Mako Nagayoshi, Koichiro Kadota, Shin-Ya Kawashiri, Takahiro Maeda
BACKGROUND: Although high-density lipoprotein-cholesterol (HDL) level is inversely correlated with cardiovascular events, HDL is also reported to be positively associated with hypertension, which is a known endothelial impairment factor. Since HDL mediates important protective actions on the vascular endothelium by increasing the number of circulating endothelial progenitor cells (CD34-positive cells), the level of circulating CD34-positive cells should influence the association between HDL and hypertension...
June 15, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28605260/cellular-therapies-for-treatment-of-radiation-injury-report-from-a-nih-niaid-and-irsn-workshop
#4
Andrea L DiCarlo, Radia Tamarat, Carmen I Rios, Marc Benderitter, Christine W Czarniecki, Theresa C Allio, Francesca Macchiarini, Bert W Maidment, Jean-Rene Jourdain
In recent years, there has been increasing concern over the possibility of a radiological or nuclear incident occurring somewhere in the world. Intelligence agencies frequently report that terrorist groups and rogue nations are seeking to obtain radiological or nuclear weapons of mass destruction. In addition, there exists the real possibility that safety of nuclear power reactors could be compromised by natural (such as the tsunami and subsequent Fukushima accident in Japan in March, 2011) or accidental (Three Mile Island, 1979 and Chernobyl, 1986) events...
June 12, 2017: Radiation Research
https://www.readbyqxmd.com/read/28554530/electrical-muscle-stimulation-induces-an-increase-of-vegfr2-on-circulating-hematopoietic-stem-cells-in-patients-with-diabetes
#5
Asa Hidmark, Ioannis Spanidis, Thomas H Fleming, Nadine Volk, Volker Eckstein, Jan B Groener, Stefan Kopf, Peter P Nawroth, Dimitrios Oikonomou
PURPOSE: External electric muscle stimulation (EMS) of the thigh muscles was found to reduce pain resulting from diabetic neuropathy (DN), a vascular complication of diabetes. This study investigated circulating hematopoietic stem cells (HSCs) after EMS treatment. Impaired function of HSCs and the subpopulation endothelial progenitor cells (EPCs), important for neovascularization and endothelial repair, has been associated with DN. METHODS: Twenty-four patients with painful DN were treated 3 times with EMS over a period of 1 week...
May 26, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28548628/endothelial-progenitor-cells-for-the-vascularization-of-engineered-tissues
#6
Erica Brown Peters
Self-assembled microvasculature from cocultures of endothelial cells and stromal cells have significantly advanced efforts to vascularize engineered tissues by enhancing perfusion rates <i>in vivo</i> and producing investigative platforms for microvascular morphogenesis <i>in vitro</i>. However, in order to clinically translate prevascularized constructs, the issue of endothelial cell source must be resolved. Endothelial progenitor cells (EPCs) can be noninvasively supplied from the recipient through adult peripheral and umbilical cord blood, as well as derived from induced pluripotent stem cells, alleviating antigenicity issues...
May 26, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28546532/regulation-of-c-jun-n-terminal-protein-kinase-jnk-pathway-in-apoptosis-of-endothelial-outgrowth-cells-induced-by-asymmetric-dimethylarginine
#7
Fu-Qing Zhang, Wei Lu, Wen-Xiao Yuan, Xin Li
BACKGROUND Endothelial outgrowth cells (EOCs) are terminal endothelial progenitor cells (EPCs). Asymmetric dimethylarginine (ADMA) has been identified as a novel risk factor for cardiovascular diseases. Our aim in the present study was to investigate the effect of regulation of asymmetric dimethylarginine (ADMA) on EOCs apoptosis and to explore the underlining mechanisms of c-Jun N-terminal protein kinase (JNK) pathway in the process. MATERIAL AND METHODS EOCs were harvested from umbilical cord blood and obtained by using density gradient centrifugation and adhesive culture methods...
May 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28545072/effect-of-vitamin-d-on-endothelial-progenitor-cells-function
#8
Yoav Hammer, Alissa Soudry, Amos Levi, Yeela Talmor-Barkan, Dorit Leshem-Lev, Joel Singer, Ran Kornowski, Eli I Lev
BACKGROUND: Endothelial progenitor cells (EPCs) are a population of bone marrow-derived cells, which have an important role in the process of endothelialization and vascular repair following injury. Impairment of EPCs, which occurs in patients with diabetes, was shown to be related to endothelial dysfunction, coronary artery disease (CAD) and adverse clinical outcomes. Recent evidence has shown that calcitriol, the active hormone of vitamin D, has a favorable impact on the endothelium and cardiovascular system...
2017: PloS One
https://www.readbyqxmd.com/read/28542561/impaired-functional-capacity-of-fetal-endothelial-cells-in-preeclampsia
#9
Lars Brodowski, Jennifer Burlakov, Sarah Hass, Constantin von Kaisenberg, Frauke von Versen-Höynck
OBJECTIVES: Preeclampsia is one of the main contributers to maternal and fetal morbidity and mortality during pregnancy. A history of preeclampsia puts mother and offspring at an increased cardiovascular risk in later life. We hypothesized that at the time of birth functional impairments of fetal endothelial cells can be detected in pregnancies complicated by preeclampsia and that a therapeutic intervention using 1,25 (OH)2 vitamin D3 can reverse the adverse effects of preeclampsia on cell function...
2017: PloS One
https://www.readbyqxmd.com/read/28531804/protective-effect-and-mechanism-of-lycopene-on-endothelial-progenitor-cells-epcs-from-type-2-diabetes-mellitus-rats
#10
Yao-Chi Zeng, Li-Sheng Peng, Liyuan Zou, Shu-Fen Huang, Yi Xie, Gui-Ping Mu, Xue-Hui Zeng, Xi-Lin Zhou, Ya-Chi Zeng
Endothelial progenitor cells (EPCs), widely existing in bone marrow and peripheral blood, are involved in the repair of injured vascular endothelium and angiogenesis which are important to diabetic mellitus (DM) patients with vascular complications. The number and the function of EPCs are related to the advanced glycation end products (AGEs) generated in DM patients. Lycopene (Lyc) is an identified natural antioxidant that protects EPCs under the microenvironment of AGEs from damage. However, the underlying mechanism remains unclear...
August 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28528862/crocetin-restores-diabetic-endothelial-progenitor-cell-dysfunction-by-enhancing-no-bioavailability-via-regulation-of-pi3k-akt-enos-and-ros-pathways
#11
Wei Cao, Jinjin Cui, Shufeng Li, Donghui Zhang, Yibo Guo, Qiannan Li, Ying Luan, Xian Liu
AIMS: Endothelial progenitor cell (EPC) dysfunction underlies a critical risk factor in diabetic vascular complications due to function defect in restoring endothelium injury. Crocetin has attracted increasing attention in several vascular-related diseases. In present study, we aimed to explore the role of crocetin in diabetic EPC dysfunction. MAIN METHODS: EPCs were isolated from bone marrow in diabetic mice and identified using the fluorescence staining and flow cytometry...
May 18, 2017: Life Sciences
https://www.readbyqxmd.com/read/28514439/haematopoietic-stem-and-progenitor-cells-from-human-pluripotent-stem-cells
#12
Ryohichi Sugimura, Deepak Kumar Jha, Areum Han, Clara Soria-Valles, Edroaldo Lummertz da Rocha, Yi-Fen Lu, Jeremy A Goettel, Erik Serrao, R Grant Rowe, Mohan Malleshaiah, Irene Wong, Patricia Sousa, Ted N Zhu, Andrea Ditadi, Gordon Keller, Alan N Engelman, Scott B Snapper, Sergei Doulatov, George Q Daley
A variety of tissue lineages can be differentiated from pluripotent stem cells by mimicking embryonic development through stepwise exposure to morphogens, or by conversion of one differentiated cell type into another by enforced expression of master transcription factors. Here, to yield functional human haematopoietic stem cells, we perform morphogen-directed differentiation of human pluripotent stem cells into haemogenic endothelium followed by screening of 26 candidate haematopoietic stem-cell-specifying transcription factors for their capacity to promote multi-lineage haematopoietic engraftment in mouse hosts...
May 25, 2017: Nature
https://www.readbyqxmd.com/read/28498245/increased-endothelial-progenitor-cell-number-in-early-stage-of-endometrial-cancer
#13
Maria Paprocka, Claudine Kieda, Aneta Kantor, Aleksandra Bielawska-Pohl, Danuta Dus, Andrzej Czekanski, Jerzy Heimrath
OBJECTIVES: It is generally believed that circulating endothelial cells (CECs) and endothelial progenitor cells (EPCs) reflect the state of the endothelium, its injury and/or repair possibilities. In different types of cancers, increased numbers of CECs and EPCs were found, suggesting their participation in cancer angiogenesis. The objective of this study was to determine whether, in the blood circulation of women with early endometrial cancer, CEC and EPC levels differ from those of healthy women of similar age...
June 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28482051/biomarkers-of-chronic-acrolein-inhalation-exposure-in-mice-implications-for-tobacco-product-induced-toxicity
#14
Daniel J Conklin, Marina V Malovichko, Iris Zeller, Trinath P Das, Tatiana V Krivokhizhina, Blake H Lynch, Pawel Lorkiewicz, Abhinav Agarwal, Nalinie Wickramasinghe, Petra Haberzettl, Srinivas D Sithu, Jasmit Shah, Timothy E O'Toole, Shesh N Rai, Aruni Bhatnagar, Sanjay Srivastava
Exposure to tobacco smoke, which contains several harmful and potentially harmful constituents such as acrolein increases cardiovascular disease (CVD) risk. Although high acrolein levels induce pervasive cardiovascular injury, the effects of low-level exposure remain unknown and sensitive biomarkers of acrolein toxicity have not been identified. Identification of such biomarkers is essential to assess the toxicity of acrolein present at low levels in the ambient air or in new tobacco products such as e-cigarettes...
May 8, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28481220/mrna-mediated-glycoengineering-ameliorates-deficient-homing-of-human-stem-cell-derived-hematopoietic-progenitors
#15
Jungmin Lee, Brad Dykstra, Joel A Spencer, Laurie L Kenney, Dale L Greiner, Leonard D Shultz, Michael A Brehm, Charles P Lin, Robert Sackstein, Derrick J Rossi
Generation of functional hematopoietic stem and progenitor cells (HSPCs) from human pluripotent stem cells (PSCs) has been a long-sought-after goal for use in hematopoietic cell production, disease modeling, and eventually transplantation medicine. Homing of HSPCs from bloodstream to bone marrow (BM) is an important aspect of HSPC biology that has remained unaddressed in efforts to derive functional HSPCs from human PSCs. We have therefore examined the BM homing properties of human induced pluripotent stem cell-derived HSPCs (hiPS-HSPCs)...
June 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28463231/disruption-of-lineage-specification-in-adult-pulmonary-mesenchymal-progenitor-cells-promotes-microvascular-dysfunction
#16
Christa F Gaskill, Erica J Carrier, Jonathan A Kropski, Nathaniel C Bloodworth, Swapna Menon, Robert F Foronjy, M Mark Taketo, Charles C Hong, Eric D Austin, James D West, Anna L Means, James E Loyd, W David Merryman, Anna R Hemnes, Stijn De Langhe, Timothy S Blackwell, Dwight J Klemm, Susan M Majka
Pulmonary vascular disease is characterized by remodeling and loss of microvessels and is typically attributed to pathological responses in vascular endothelium or abnormal smooth muscle cell phenotypes. We have challenged this understanding by defining an adult pulmonary mesenchymal progenitor cell (MPC) that regulates both microvascular function and angiogenesis. The current understanding of adult MPCs and their roles in homeostasis versus disease has been limited by a lack of genetic markers with which to lineage label multipotent mesenchyme and trace the differentiation of these MPCs into vascular lineages...
June 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28462013/stromal-progenitor-cells-in-mitigation-of-non-hematopoietic-radiation-injuries
#17
Shilpa Kulkarni, Timothy C Wang, Chandan Guha
PURPOSE OF REVIEW: Therapeutic exposure to high doses of radiation can severely impair organ function due to ablation of stem cells. Normal tissue injury is a dose-limiting toxicity for radiation therapy (RT). Although advances in the delivery of high precision conformal RT has increased normal tissue sparing, mitigating and therapeutic strategies that could alleviate early and chronic radiation effects are urgently needed in order to deliver curative doses of RT, especially in abdominal, pelvic and thoracic malignancies...
December 2016: Current Pathobiology Reports
https://www.readbyqxmd.com/read/28460767/predictors-of-endothelial-dysfunction-and-atherosclerosis-in-rheumatoid-arthritis-in-indian-population
#18
Inderjeet Verma, Ashit Syngle, Pawan Krishan
OBJECTIVE: Cardiovascular (CV) disease is leading cause of mortality in rheumatoid arthritis (RA). Dysfunction of the vascular endothelium is a hallmark of most conditions that are associated with atherosclerosis and is therefore an early feature in atherogenesis. Biomarkers for rapid evolution of CV complications would be highly desirable for risk stratification. Finally, predictive biomarkers for cardiovascular risk would allow tailoring therapy to the individual. We assessed endothelial function and atherosclerosis utilizing carotid intima-media thickness (CIMT) in RA in context of clinical and laboratory markers in Indian RA population...
March 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28460648/endothelial-dysfunction-in-individuals-born-after-fetal-growth-restriction-cardiovascular-and-renal-consequences-and-preventive-approaches
#19
C Yzydorczyk, J B Armengaud, A C Peyter, H Chehade, F Cachat, C Juvet, B Siddeek, S Simoncini, F Sabatier, F Dignat-George, D Mitanchez, U Simeoni
Individuals born after intrauterine growth restriction (IUGR) have an increased risk of perinatal morbidity/mortality, and those who survive face long-term consequences such as cardiovascular-related diseases, including systemic hypertension, atherosclerosis, coronary heart disease and chronic kidney disease. In addition to the demonstrated long-term effects of decreased nephron endowment and hyperactivity of the hypothalamic-pituitary-adrenal axis, individuals born after IUGR also exhibit early alterations in vascular structure and function, which have been identified as key factors of the development of cardiovascular-related diseases...
May 2, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28450163/murine-hemogenic-endothelial-precursors-display-heterogeneous-hematopoietic-potential-ex%C3%A2-vivo
#20
Miguel Ganuza, Brandon Hadland, Ashley Chabot, Chen Li, Guolian Kang, Irwin Bernstein, Shannon McKinney-Freeman
Hematopoietic stem and progenitor cells (HSPCs) sustain life-long hematopoiesis and are first detected in the embryo by transplantation at embryonic day 10.5 (E10.5). HSPCs are mesodermal in origin and ultimately emerge from a subset of arterial endothelium (i.e., hemogenic endothelium [HE]), which is highly concentrated in the aorta-gonad-mesonephros region of the midgestation embryo. Here, we used clonal ex vivo assays, in which endothelial cells isolated from the midgestation aorta and vitelline and umbilical arteries are co-cultured on supportive stroma, to show that only about 0...
July 2017: Experimental Hematology
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