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https://www.readbyqxmd.com/read/28915234/tissue-regeneration-using-endothelial-colony-forming-cells-promising-cells-for-vascular-repair
#1
REVIEW
Kimihiko Banno, Mervin C Yoder
To repair and rebuild damaged tissue in diseased human subjects remains a daunting challenge for clinical medicine. Proper vascular formation that serves to deliver blood-borne nutrients and adequate levels of oxygen and remove wastes is critical for successful tissue regeneration. Endothelial colony-forming cells (ECFC) represent a promising cell source for revascularization of damaged tissue. ECFC are identified by displaying a hierarchy of clonal proliferative potential and by pronounced postnatal vascularization ability in vivo...
September 15, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28910333/reduced-proliferation-of-endothelial-colony-forming-cells-in-unprovoked-venous-thromboembolic-disease-as-a-consequence-of-endothelial-dysfunction
#2
Rubicel Hernandez-Lopez, Antonieta Chavez-Gonzalez, Patricia Torres-Barrera, Dafne Moreno-Lorenzana, Norma Lopez-DiazGuerrero, David Santiago-German, Irma Isordia-Salas, David Smadja, Mervin C Yoder, Abraham Majluf-Cruz, J Antonio Alvarado-Moreno
BACKGROUND: Venous thromboembolic disease (VTD) is a public health problem. We recently reported that endothelial colony-forming cells (ECFCs) derived from endothelial cells (EC) (ECFC-ECs) from patients with VTD have a dysfunctional state. For this study, we proposed that a dysfunctional status of these cells generates a reduction of its proliferative ability, which is also associated with senescence and reactive oxygen species (ROS). METHODS AND RESULTS: Human mononuclear cells (MNCs) were obtained from peripheral blood from 40 healthy human volunteers (controls) and 50 patients with VTD matched by age (20-50 years) and sex to obtain ECFCs...
2017: PloS One
https://www.readbyqxmd.com/read/28889182/benign-extracerebral-fluid-collection-complicated-by-subdural-hematoma-and-fluid-collection-clinical-characteristics-and-management
#3
Hee Chang Lee, Sangjoon Chong, Ji Yeoun Lee, Jung-Eun Cheon, Ji Hoon Phi, Seung-Ki Kim, In-One Kim, Kyu-Chang Wang
INTRODUCTION: Benign extracerebral fluid collection (bECFC) can be complicated by subdural hematoma (SDH) or subdural fluid collection (SDFC). The etiology, natural history, and management strategy for SDH/SDFC in bECFC are not fully understood. We retrospectively reviewed the cases of bECFC patients complicated with SDH/SDFC and tried (1) to confirm the fact that bECFC children are vulnerable to SDH/SDFC, (2) to investigate the clinical significance of 'trauma history' witnessed by a caregiver, and (3) to determine optimal management for them...
September 9, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28862380/fetal-bone-marrow-derived-mesenchymal-stem-stromal-cells-enhance-humanization-and-bone-formation-of-bmp7-loaded-scaffolds
#4
Abbas Shafiee, Jeremy G Baldwin, Jatin Patel, Boris M Holzapfel, Nicholas M Fisk, Kiarash Khosrotehrani, Dietmar W Hutmacher
Tissue engineered constructs built with human cells capable of generating a bone-like organ within the mouse have attracted considerable interest over the past decade. Here, we aimed to compare the utility of human mesenchymal stem/stromal cells (MSC) isolated from fetal term placenta (fPL-MSC) and fetal first trimester bone marrow (fBM-MSC) in a polycaprolactone scaffold/BMP7-based model in nude mice. Furthermore, fPL-MSC were co-seeded with fetal placenta-derived endothelial colony forming cells (ECFC) to assess the impact of ECFC on fPL-MSC osteogenesis...
September 1, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28816358/trpc3-mediated-ca-2-signals-as-a-promising-strategy-to-boost-therapeutic-angiogenesis-in-failing-hearts-the-role-of-autologous-endothelial-colony-forming-cells
#5
REVIEW
Francesco Moccia, Angela Lucariello, Germano Guerra
Endothelial progenitor cells (EPCs) are a sub-population of bone marrow-derived mononuclear cells that are released in circulation to restore damaged endothelium during its physiological turnover or rescue blood perfusion after an ischemic insult. Additionally, they may be mobilized from perivascular niches located within larger arteries' wall in response to hypoxic conditions. For this reason, EPCs have been regarded as an effective tool to promote revascularization and functional recovery of ischemic hearts, but clinical application failed to exploit the full potential of patients-derived cells...
August 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28811647/biogenesis-of-pro-senescent-microparticles-by-endothelial-colony-forming-cells-from-premature-neonates-is-driven-by-sirt1-dependent-epigenetic-regulation-of-mkk6
#6
Stéphanie Simoncini, Anne-Line Chateau, Stéphane Robert, Dilyana Todorova, Catherine Yzydorzick, Romaric Lacroix, Isabelle Ligi, Laurence Louis, Richard Bachelier, Umberto Simeoni, Frédérique Magdinier, Françoise Dignat-George, Florence Sabatier
Senescent cells may exert detrimental effect on microenvironment through the secretion of soluble factors and the release of extracellular vesicles, such as microparticles, key actors in ageing and cardiovascular diseases. We previously reported that sirtuin-1 (SIRT1) deficiency drives accelerated senescence and dysfunction of endothelial colony-forming cells (ECFC) in PT neonates. Because preterm birth (PT) increases the risk for cardiovascular diseases during neonatal period as well as at adulthood, we hypothesized that SIRT1 deficiency could control the biogenesis of microparticles as part of a senescence-associated secretory phenotype (SASP) of PT-ECFC and investigated the related molecular mechanisms...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28771278/co-injection-of-mesenchymal-stem-cells-with-endothelial-progenitor-cells-accelerates-muscle-recovery-in-hind-limb-ischemia-through-an-endoglin-dependent-mechanism
#7
Elisa Rossi, David Smadja, Celine Goyard, Audrey Cras, Blandine Dizier, Nour Bacha, Anna Lokajczyk, Coralie L Guerin, Nicolas Gendron, Benjamin Planquette, Virginie Mignon, Carmelo Bernabéu, Olivier Sanchez, David M Smadja
Endothelial colony-forming cells (ECFCs) are progenitor cells committed to endothelial lineages and have robust vasculogenic properties. Mesenchymal stem cells (MSCs) have been described to support ECFC-mediated angiogenic processes in various matrices. However, MSC-ECFC interactions in hind limb ischemia (HLI) are largely unknown. Here we examined whether co-administration of ECFCs and MSCs bolsters vasculogenic activity in nude mice with HLI. In addition, as we have previously shown that endoglin is a key adhesion molecule, we evaluated its involvement in ECFC/MSC interaction...
August 3, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28762895/encapsulation-of-equine-ecfcs-in-highly-uniform-injectable-hydrogel-microspheres-for-local-cell-delivery
#8
Wen J Seeto, Yuan Tian, Randolph L Winter, Fred J Caldwell, Anne A Wooldridge, Elizabeth Ann Lipke
A common challenge in cell therapy is the inability to routinely maintain survival and localization of injected therapeutic cells. Delivering cells by direct injection increases the flexibility of clinical applications, but may cause low cell viability and retention rates due to the high shear force by the needle and mechanical wash out. In this study, we present a custom-built microfluidic device that is capable of rapidly encapsulating high concentrations (10 million cells per mL) of endothelial colony forming cells (ECFCs) in poly(ethylene glycol)-fibrinogen (PF) hydrogel microspheres; resulting cell-laden microspheres are highly uniform in shape and size...
August 1, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28727754/dysregulation-of-endothelial-colony-forming-cell-function-by-a-negative-feedback-loop-of-circulating-mir-146a-and-146b-in-cardiovascular-disease-patients
#9
Ting-Yu Chang, Wei-Chi Tsai, Tse-Shun Huang, Shu-Han Su, Chih-Young Chang, Hsiu-Yen Ma, Chun-Hsien Wu, Chih-Yung Yang, Chi-Hung Lin, Po-Hsun Huang, Cheng-Chung Cheng, Shu-Meng Cheng, Hsei-Wei Wang
Functional impairment of endothelial colony-forming cells (ECFCs), a specific cell lineage of endothelial progenitor cells (EPCs) is highly associated with the severity of coronary artery disease (CAD), the most common type of cardiovascular disease (CVD). Emerging evidence show that circulating microRNAs (miRNAs) in CAD patients' body fluid hold a great potential as biomarkers. However, our knowledge of the role of circulating miRNA in regulating the function of ECFCs and the progression of CAD is still in its infancy...
2017: PloS One
https://www.readbyqxmd.com/read/28716604/endothelial-progenitor-cell-subsets-and-preeclampsia-findings-and-controversies
#10
REVIEW
Armin Attar, Ahmad Monabati, Mohammad-Ebrahim Parsanezhad
Vascular remodeling is an essential component of gestation. Endothelial progenitor cells (EPCs) play an important role in the regulation of vascular homeostasis. The results of studies measuring the number of EPCs in normal pregnancies and in preeclampsia have been highly controversial or even contradictory because of some variations in technical issues and different methodologies enumerating three distinct subsets of EPCs: circulating angiogenic cells (CAC), colony forming unit endothelial cells (CFU-ECs), and endothelial colony-forming cells (ECFCs)...
July 14, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28685053/pituitary-adenylate-cyclase-activating-polypeptide-attenuates-tumor-necrosis-factor-%C3%AE-induced-apoptosis-in-endothelial-colony-forming-cells
#11
Ning Bian, Gang Du, Man Fai Ip, Juan Ding, Qing Chang, Zicheng Li
Endothelial colony-forming cells (ECFCs) are important in angiogenesis and vascular proliferation. Tumor necrosis factor (TNF)-α is a significant risk factor for the development of atherosclerosis and a key proinflammatory cytokine known to induce apoptosis in endothelial cells. Pituitary adenylate cyclase-activating polypeptide (PACAP) is one of the members of the vasoactive intestinal peptide/secretin/growth hormone-releasing hormone/glucagon superfamily and exists in two biological active forms, PACAP 38 and PACAP 27...
July 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28655551/adult-venous-endothelium-is-a-niche-for-highly-proliferative-and-vasculogenic-endothelial-colony-forming-cells
#12
Linden Green, Richard H Ofstein, Brian Rapp, M Reza Saadatzadeh, Janak R Bhavsar, Andres Fajardo, Michael C Dalsing, David A Ingram, Michael P Murphy
OBJECTIVE: Postnatal resident endothelium of blood vessels has been proposed to represent terminally differentiated tissue that does not replicate. We previously isolated endothelial colony-forming cells (ECFCs) from human umbilical cord blood (CB) and term placenta by using colony-forming assays and immunocytochemistry. We showed that ECFCs are highly proliferative and form functioning vessels in vivo, the defining characteristics of a true endothelial progenitor cell. This exploratory investigation was conducted to determine whether the endothelium of healthy adult blood vessels contained resident ECFCs...
June 24, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28640846/endothelial-angiogenesis-is-directed-by-runx1t1-regulated-vegfa-bmp4-and-tgf-%C3%AE-2-expression
#13
Ko-Hsun Liao, Shing-Jyh Chang, Hsin-Chuan Chang, Chen-Li Chien, Tse-Shun Huang, Te-Chia Feng, Wen-Wei Lin, Chuan-Chi Shih, Muh-Hwa Yang, Shung-Haur Yang, Chi-Hung Lin, Wei-Lun Hwang, Oscar K Lee
Tissue angiogenesis is intimately regulated during embryogenesis and postnatal development. Defected angiogenesis contributes to aberrant development and is the main complication associated with ischemia-related diseases. We previously identified the increased expression of RUNX1T1 in umbilical cord blood-derived endothelial colony-forming cells (ECFCs) by gene expression microarray. However, the biological relevance of RUNX1T1 in endothelial lineage is not defined clearly. Here, we demonstrate RUNX1T1 regulates the survival, motility and tube forming capability of ECFCs and EA...
2017: PloS One
https://www.readbyqxmd.com/read/28631889/microrna-containing-extracellular-vesicles-released-from-endothelial-colony-forming-cells-modulate-angiogenesis-during-ischaemic-retinopathy
#14
Margaret Dellett, Eoin D Brown, Jasenka Guduric-Fuchs, Anna O'Connor, Alan W Stitt, Reinhold J Medina, David A Simpson
Endothelial colony-forming cells (ECFCs) are a defined subtype of endothelial progenitors that modulate vascular repair and promote perfusion in ischaemic tissues. Their paracrine activity on resident vasculature is ill-defined, but mediated, at least in part, by the transfer of extracellular vesicles (EVs). To evaluate the potential of isolated EVs to provide an alternative to cell-based therapies, we first performed a physical and molecular characterization of those released by ECFCs. Their effects upon endothelial cells in vitro and angiogenesis in vivo in a model of proliferative retinopathy were assessed...
June 20, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28607561/the-transcription-factor-nrf2-protects-angiogenic-capacity-of-endothelial-colony-forming-cells-in-high-oxygen-radical-stress-conditions
#15
Hendrik Gremmels, Olivier G de Jong, Diënty H Hazenbrink, Joost O Fledderus, Marianne C Verhaar
BACKGROUND: Endothelial colony forming cells (ECFCs) have shown a promise in tissue engineering of vascular constructs, where they act as endothelial progenitor cells. After implantation, ECFCs are likely to be subjected to elevated reactive oxygen species (ROS). The transcription factor Nrf2 regulates the expression of antioxidant enzymes in response to ROS. METHODS: Stable knockdown of Nrf2 and Keap1 was achieved by transduction with lentiviral shRNAs; activation of Nrf2 was induced by incubation with sulforaphane (SFN)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28607361/a-novel-strategy-to-engineer-pre-vascularized-full-length-dental-pulp-like-tissue-constructs
#16
Avathamsa Athirasala, Fernanda Lins, Anthony Tahayeri, Monica Hinds, Anthony J Smith, Christine Sedgley, Jack Ferracane, Luiz E Bertassoni
The requirement for immediate vascularization of engineered dental pulp poses a major hurdle towards successful implementation of pulp regeneration as an effective therapeutic strategy for root canal therapy, especially in adult teeth. Here, we demonstrate a novel strategy to engineer pre-vascularized, cell-laden hydrogel pulp-like tissue constructs in full-length root canals for dental pulp regeneration. We utilized gelatin methacryloyl (GelMA) hydrogels with tunable physical and mechanical properties to determine the microenvironmental conditions (microstructure, degradation, swelling and elastic modulus) that enhanced viability, spreading and proliferation of encapsulated odontoblast-like cells (OD21), and the formation of endothelial monolayers by endothelial colony forming cells (ECFCs)...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28597778/genomic-stability-of-pulmonary-artery-endothelial-colony-forming-cells-in-culture
#17
Kylie M Drake, Chiara Federici, Heng T Duong, Suzy A Comhair, Serpil C Erzurum, Kewal Asosingh, Micheala A Aldred
Pulmonary vascular remodeling, including proliferation and migration of pulmonary artery endothelial cells (PAEC), is a pathologic hallmark of pulmonary arterial hypertension (PAH). Multiple studies have shown evidence of increased levels of DNA damage and lineage-specific genetic changes in PAH lung vascular cells, suggesting increased genomic instability. Highly proliferative endothelial colony-forming cell (ECFC) clones can be isolated from PAEC. Here we utilized ECFC to track chromosomal copy number of 20 PAH and eight control clones across serial passages using genome-wide microarrays...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28499264/initial-clonogenic-potential-of-human-endothelial-progenitor-cells-is-predictive-of-their-further-properties-and-establishes-a-functional-hierarchy-related-to-immaturity
#18
Ségolène Ferratge, Guillaume Ha, Gilles Carpentier, Nassim Arouche, Rümeyza Bascetin, Laurent Muller, Stéphane Germain, Georges Uzan
Endothelial progenitor cells (EPCs) generate in vitro Endothelial Colony Forming Cells (ECFCs) combining features of endothelial and stem/progenitor cells. Their angiogenic properties confer them a therapeutic potential for treating ischemic lesions. They may be isolated from umbilical cord blood (CB-ECFCs) or peripheral adult blood (AB-ECFCs). It is generally accepted that CB-ECFCs are more clonogenic, proliferative and angiogenic than AB-ECFCs. Nevertheless, only a few studies have focused on the functional heterogeneity of CB-ECFCs from different individuals...
May 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28490433/peripheral-blood-cytokine-levels-after-acute-myocardial-infarction-il-1%C3%AE-and-il-6-related-impairment-of-bone-marrow-function
#19
Mahan Shahrivari, Elizabeth Wise, Micheline Resende, Jonathan J Shuster, Jingnan Zhang, Roberto Bolli, John P Cooke, Joshua M Hare, Timothy D Henry, Aisha Khan, Doris A Taylor, Jay H Traverse, Phillip C Yang, Carl J Pepine, Christopher R Cogle
RATIONALE: Intracoronary infusion of bone marrow (BM) mononuclear cells after acute myocardial infarction (AMI) has led to limited improvement in left ventricular function. Although experimental AMI models have implicated cytokine-related impairment of progenitor cell function, this response has not been investigated in humans. OBJECTIVE: To test the hypothesis that peripheral blood (PB) cytokines predict BM endothelial progenitor cell colony outgrowth and cardiac function after AMI...
June 9, 2017: Circulation Research
https://www.readbyqxmd.com/read/28396600/endothelial-colony-forming-cells-and-mesenchymal-progenitor-cells-form-blood-vessels-and-increase-blood-flow-in-ischemic-muscle
#20
Kyu-Tae Kang, Ruei-Zeng Lin, David Kuppermann, Juan M Melero-Martin, Joyce Bischoff
Here we investigated whether endothelial colony forming cells (ECFC) and mesenchymal progenitor cells (MPC) form vascular networks and restore blood flow in ischemic skeletal muscle, and whether host myeloid cells play a role. ECFC + MPC, ECFC alone, MPC alone, or vehicle alone were injected into the hind limb ischemic muscle one day after ligation of femoral artery and vein. At day 5, hind limbs injected with ECFC + MPC showed greater blood flow recovery compared with ECFC, MPC, or vehicle. Tail vein injection of human endothelial specific Ulex europaeus agglutinin-I demonstrated an increased number of perfused human vessels in ECFC + MPC compared with ECFC...
April 10, 2017: Scientific Reports
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