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https://www.readbyqxmd.com/read/28936744/cardiac-telocyte-derived-exosomes-and-their-possible-implications-in-cardiovascular-pathophysiology
#1
Mirca Marini, Lidia Ibba-Manneschi, Mirko Manetti
Among cardiac interstitial cells, the recently described telocytes (TCs) display the unique ability to build a supportive three-dimensional network formed by their very long and thin prolongations named telopodes. Cardiac TCs are increasingly regarded as pivotal regulators in intercellular signaling with multiple cell types, such as cardiomyocytes, stem/progenitor cells, microvessels, nerve endings, fibroblasts and immune cells, thus converting the cardiac stromal compartment into an integrated system that may drive either heart development or maintenance of cardiac homeostasis in post-natal life...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28936743/therapeutic-potential-of-hematopoietic-stem-cell-derived-exosomes-in-cardiovascular-disease
#2
Jana Radosinska, Monika Bartekova
As other stem cells, hematopoietic stem cells (HSCs) are able to produce extracellular vesicles (EVs) including exosomes and microvesicles. This chapter summarizes the knowledge about the production of EVs by the HSCs, their role in the intercellular communication, and will discuss the cargo of these EVs as well as protective effects of HSCs-derived exosomes and microvesicles in cardiovascular diseases (CVD). Available data showed that cardioprotective action of injected HSCs could not be explained by direct transdifferentiationof injected cells into the cardiomyocytes, this effect is suggested to be mediated via paracrine communication (by EVs) between donor and recipient cells...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28936742/cardiac-progenitor-cell-derived-exosomes-as-cell-free-therapeutic-for-cardiac-repair
#3
E A Mol, M J Goumans, J P G Sluijter
Cardiac progenitor cells (CPCs) have emerged as potential therapy to improve cardiac repair and prevent damage in cardiac diseases. CPCs are a promising cell source for cardiac therapy as they can generate all cardiovascular lineages in vitro and in vivo. Originating from the heart itself, CPCs may be destined to activate endogenous repair mechanisms. These CPCs release paracrine molecules that are able to stimulate cardiac repair mechanisms, including stimulation of vessel formation and inhibition of cardiomyocyte apoptosis...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28933297/circulating-stem-progenitor-cells-as-prognostic-biomarkers-in-macro-and-microvascular-disease-a-narrative-review-of-prospective-observational-studies
#4
Mauro Rigato, Gian Paolo Fadini
BACKGROUND: Circulating progenitor cells (CPCs) and endothelial progenitor cells (EPCs) are immature cells involved in vascular repair and related to many aspects of macro and microvascular disease. OBJECTIVE: We aimed to review studies reporting the prognostic role of CPCs/EPCs measurement on development of cardiovascular disease and microangiopathy. METHODS AND RESULTS: We reviewed the English language literature for prospective observational studies reporting the future development of cardiovascular disease or microangiopathy in patients having a baseline determination of CPCs/EPCs...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28921619/alcohol-reduces-arterial-remodeling-by-inhibiting-sonic-hedgehog-stimulated-sca1-progenitor-stem-cell-expansion
#5
Emma Fitzpatrick, Xu Han, Weimin Liu, Eoin Corcoran, Denise Burtenshaw, Maryam Alshamrani, David Morrow, Jay-Christian Helt, Paul A Cahill, Eileen M Redmond
BACKGROUND: Cell and molecular mechanisms mediating the cardiovascular effects of alcohol are not fully understood. Our aim was to determine the effect of moderate Ethanol (EtOH) on Sonic Hedgehog (SHh) signaling in regulating possible Sca1(+) progenitor stem cell involvement during pathologic arterial remodeling. METHODS AND RESULTS: Partial ligation or sham-operation of the left carotid artery was performed in transgenic Sca1-eGFP mice gavaged with or without 'daily moderate' EtOH...
September 18, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28918419/-about-the-association-between-antipsychotic-medication-and-cardiovascular-morbidity-epidemiology-and-possible-background-mechanisms
#6
Gabor Gaszner, Gabor Barna, Peter Dome
The history of antipsychotics began with the discovery of chlorpromazine in the 1950s. Since then this group of medications has become one of the most important element of the armamentarium of psychopharmacology. While initially these pharmacons were used in the treatment of psychotic states (including psychotic mania) in the last approximately 10-15 years new indications - such as treatment of depressive, manic and mixed states and also mood-stabilization in bipolar disorder and also the treatment of major depressive disorder - for several second-generation antipsychotic (SGA) agents have been introduced...
June 2017: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/28916148/chemokine-receptor-directed-imaging-and-therapy
#7
REVIEW
Andreas K Buck, Antje Stolzenburg, Heribert Hänscheid, Andreas Schirbel, Katharina Lückerath, Margret Schottelius, Hans-Jürgen Wester, Constantin Lapa
The C - X - C chemokine receptor 4 (CXCR4) and its natural ligand CXCL12 are key factors in the process of cell migration, homing of hematopoietic stem cells to the bone marrow, and represent important mediators of angiogenesis and cell proliferation. The CXCR4/CXCL12 interplay can be disrupted by CXCR4 antagonists such as Plerixafor which are already in daily clinical use, i.e. for mobilization and subsequent harvesting of hematopoietic progenitor cells and stem cell transplantation. In a pathological condition, involvement in the process of metastasis and homing of cancer cells to a protective niche has been described, making CXCR4 an attractive target for imaging and treatment of malignant diseases...
September 12, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28912015/stem-cell-based-peripheral-vascular-regeneration
#8
Yasuyuki Fujita, Atsuhiko Kawamoto
Chronic critical limb ischemia (CLI) represents an end-stage manifestation of peripheral arterial disease (PAD). CLI patients are at very high risk of amputation and cardiovascular complications, leading to severe morbidity and mortality. Because many patients with CLI are ineligible for conventional revascularization procedures, it is urgently needed to explore alternative strategies to improve blood supply in the ischemic tissue. Although researchers initially focused on gene/protein therapy using proangiogenic growth factors/cytokines, recent discovery of somatic stem/progenitor cells including bone marrow (BM)-derived endothelial progenitor cells (EPCs) and mesenchymal stem cells (MSCs) has drastically developed the field of therapeutic angiogenesis for CLI...
September 11, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28899085/correlation-between-nadph-oxidase-mediated-oxidative-stress-and-dysfunction-of-endothelial-progenitor-cell-in-hyperlipidemic-patients
#9
Ting-Bo Li, Yin-Zhuang Zhang, Wei-Qi Liu, Jie-Jie Zhang, Jun Peng, Xiu-Ju Luo, Qi-Lin Ma
Background/Aims: NADPH (nicotinamide adenine dinucleotide phosphate) oxidase (NOX)-mediated oxidative stress plays a key role in promotion of oxidative injury in the cardiovascular system. The aim of this study is to evaluate the status of NOX in endothelial progenitor cells (EPCs) of hyperlipidemic patients and to assess the correlation between NOX activity and the functions EPCs. Methods: A total of 30 hyperlipidemic patients were enrolled for this study and 30 age-matched volunteers with normal level of plasma lipids served as controls...
September 13, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28877089/the-maturation-of-a-neural-hematopoietic-inflammatory-axis-in-cardiovascular-disease
#10
Lotte C A Stiekema, Johan G Schnitzler, Matthias Nahrendorf, Erik S G Stroes
PURPOSE OF REVIEW: Atherogenesis is the result of a complex interplay between lipids and innate immune cells, which are descendants of upstream progenitors residing in hematopoietic organs. In this review, we will discuss recent advances in the connection between hematopoiesis and atherogenesis. RECENT FINDINGS: The relevance of a neural-hematopoietic axis was recently supported by the demonstration of a correlation between metabolic activity in the amygdala and the bone marrow...
September 4, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28869686/concise-reviews-kidney-generation-with-human-pluripotent-stem-cells
#11
REVIEW
Ryuji Morizane, Tomoya Miyoshi, Joseph V Bonventre
Chronic kidney disease (CKD) is a world-wide healthcare problem, resulting in increased cardiovascular mortality and often leading to end-stage kidney disease (ESKD) where patients require kidney replacement therapies such as hemodialysis or kidney transplantation. Loss of functional nephrons contributes to the progression of CKD, which can be attenuated but not reversed due to inability to generate new nephrons in human adult kidneys. Human pluripotent stem cells (hPSCs), by virtue of their unlimited self-renewal and ability to differentiate into cells of all three embryonic germ layers, are attractive sources for kidney regenerative therapies...
September 4, 2017: Stem Cells
https://www.readbyqxmd.com/read/28854848/the-effect-of-anti-cd133-fucoidan-bio-coatings-on-hemocompatibility-and-epc-capture
#12
Hong Su, Guoneng Xue, Changrong Ye, Yan Wang, Ansha Zhao, Nan Huang, Jingan Li
Surface modification by immobilizing biomolecules has been widely proved to enhance biocompatibility of cardiovascular implanted devices. Here, we aimed at developing a multifunctional surface that not only provides good hemocompatibility but also functions well in capturing circulating endothelial progenitor cells (EPCs) in the blood flow to improve the surface endothelialization. In the present work, we preferred to chemically co-immobilize (Michael addition and Schiff base reaction) the anti-CD133 (EPC-specific antibody) and fucoidan (EPC-mobilization factor, which also contribute to better hemocompatibility) onto a polydopamine (PDA) film which is famous for its stability and endothelial cell (EC) compatibility...
August 31, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28842933/plasma-stem-cell-factor-levels-are-associated-with-risk-of-cardiovascular-disease-and-death
#13
Harry Björkbacka, Ingrid Yao Mattisson, Maria Wigren, Olle Melander, Gunilla Nordin Fredrikson, Eva Bengtsson, Isabel Gonçalves, Peter Almgren, Jens O Lagerstedt, Marju Orho-Melander, Gunnar Engström, Jan Nilsson
OBJECTIVE: Stem cell factor (SCF) is a key growth factor for several types of stem and progenitor cells. There is experimental evidence that such cells are of importance for maintaining the integrity of the cardiovascular system. We investigated the association between circulating levels of SCF and risk for development of cardiovascular events and death. METHODS: SCF was analyzed by the Proximity Extension Assay technique in plasma from 4742 subjects participating in the Malmö Diet and Cancer Study...
August 26, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28836435/controlling-molecular-weight-of-hyaluronic-acid-conjugated-on-amine-rich-surface-toward-better-multifunctional-biomaterials-for-cardiovascular-implants
#14
Jingan Li, Feng Wu, Kun Zhang, Zikun He, Dan Zou, Xiao Luo, Yonghong Fan, Ping Yang, Ansha Zhao, Nan Huang
The molecular weights (MWs) of hyaluronic acid (HA) in extracellular matrix secreted from both vascular endothelial cells (VECs) and vascular smooth muscle cells (VSMCs) play crucial roles in the cardiovascular physiology, as HA with appropriate MW influences important pathways of cardiovascular homeostasis, inhibits VSMC synthetic phenotype change and proliferation, inhibits platelet activation and aggregation, promotes endothelial monolayer repair and functionalization, and prevents inflammation and atherosclerosis...
September 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28827151/endothelial-and-cardiac-progenitor-cells-for-cardiovascular-repair-a-controversial-paradigm-in-cell-therapy
#15
REVIEW
Vanessa Bianconi, Amirhossein Sahebkar, Petri Kovanen, Francesco Bagaglia, Biagio Ricciuti, Paolo Calabrò, Giuseppe Patti, Matteo Pirro
Stem cells have the potential to differentiate into cardiovascular cell lineages and to stimulate tissue regeneration in a paracrine/autocrine manner; thus, they have been extensively studied as candidate cell sources for cardiovascular regeneration. Several preclinical and clinical studies addressing the therapeutic potential of endothelial progenitor cells (EPCs) and cardiac progenitor cells (CPCs) in cardiovascular diseases have been performed. For instance, autologous EPC transplantation and EPC mobilization through pharmacological agents contributed to vascular repair and neovascularization in different animal models of limb ischemia and myocardial infarction...
August 18, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28825716/targeting-cellular-senescence-prevents-age-related-bone-loss-in-mice
#16
Joshua N Farr, Ming Xu, Megan M Weivoda, David G Monroe, Daniel G Fraser, Jennifer L Onken, Brittany A Negley, Jad G Sfeir, Mikolaj B Ogrodnik, Christine M Hachfeld, Nathan K LeBrasseur, Matthew T Drake, Robert J Pignolo, Tamar Pirtskhalava, Tamara Tchkonia, Merry Jo Oursler, James L Kirkland, Sundeep Khosla
Aging is associated with increased cellular senescence, which is hypothesized to drive the eventual development of multiple comorbidities. Here we investigate a role for senescent cells in age-related bone loss through multiple approaches. In particular, we used either genetic (i.e., the INK-ATTAC 'suicide' transgene encoding an inducible caspase 8 expressed specifically in senescent cells) or pharmacological (i.e., 'senolytic' compounds) means to eliminate senescent cells. We also inhibited the production of the proinflammatory secretome of senescent cells using a JAK inhibitor (JAKi)...
September 2017: Nature Medicine
https://www.readbyqxmd.com/read/28819363/combined-analysis-of-endothelial-hematopoietic-and-mesenchymal-stem-cell-compartments-shows-simultaneous-but-independent-effects-of-age-and-heart-disease
#17
Carine Ghem, Lucinara Dadda Dias, Roberto Tofani Sant'Anna, Renato A K Kalil, Melissa Markoski, Nance Beyer Nardi
Clinical trials using stem cell therapy for heart diseases have not reproduced the initial positive results obtained with animal models. This might be explained by a decreased regenerative capacity of stem cells collected from the patients. This work aimed at the simultaneous investigation of endothelial stem/progenitor cells (EPCs), mesenchymal stem/progenitor cells (MSCs), and hematopoietic stem/progenitor cells (HSCs) in sternal bone marrow samples of patients with ischemic or valvular heart disease, using flow cytometry and colony assays...
2017: Stem Cells International
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
#18
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/28811655/a-tissue-engineered-blood-vessel-model-of-hutchinson-gilford-progeria-syndrome-using-human-ipsc-derived-smooth-muscle-cells
#19
Leigh Atchison, Haoyue Zhang, Kan Cao, George A Truskey
Hutchison-Gilford Progeria Syndrome (HGPS) is a rare, accelerated aging disorder caused by nuclear accumulation of progerin, an altered form of the Lamin A gene. The primary cause of death is cardiovascular disease at about 14 years. Loss and dysfunction of smooth muscle cells (SMCs) in the vasculature may cause defects associated with HGPS. Due to limitations of 2D cell culture and mouse models, there is a need to develop improved models to discover novel therapeutics. To address this need, we produced a functional three-dimensional model of HGPS that replicates an arteriole-scale tissue engineered blood vessel (TEBV) using induced pluripotent stem cell (iPSC)-derived SMCs from an HGPS patient...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809938/perinatal-testosterone-exposure-potentiates-vascular-dysfunction-by-er%C3%AE-suppression-in-endothelial-progenitor-cells
#20
Weiguo Xie, Mingming Ren, Ling Li, Yin Zhu, Zhigang Chu, Zhigang Zhu, Qiongfang Ruan, Wenting Lou, Haimou Zhang, Zhen Han, Xiaodong Huang, Wei Xiang, Tao Wang, Paul Yao
Recent clinical cohort study shows that testosterone therapy increases cardiovascular diseases in men with low testosterone levels, excessive circulating androgen levels may play a detrimental role in the vascular system, while the potential mechanism and effect of testosterone exposure on the vascular function in offspring is still unknown. Our preliminary results showed that perinatal testosterone exposure in mice induces estrogen receptor β (ERβ) suppression in endothelial progenitor cells (EPCs) in offspring but not mothers, while estradiol (E2) had no effect...
2017: PloS One
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