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Cardiac progenitor

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https://www.readbyqxmd.com/read/28938428/glp-1-receptor-activation-inhibits-palmitate-induced-apoptosis-via-ceramide-in-human-cardiac-progenitor-cells
#1
Anna Leonardini, Rossella D'Oria, Maria Angela Incalza, Cristina Caccioppoli, Valentina Andrulli Buccheri, Angelo Cignarelli, Domenico Paparella, Vito Margari, Annalisa Natalicchio, Sebastio Perrini, Francesco Giorgino, Luigi Laviola
Context: Increased apoptosis of cardiomyocytes and cardiac progenitor cells (CPCs) in response to saturated fatty acids (SFA) can lead to myocardial damage and dysfunction. Ceramides mediate lipotoxicity-induced apoptosis. GLP-1 receptor (GLP1R) agonists exert beneficial effects on cardiac cells in experimental models. Objective: To investigate the protective effects of GLP1R activation on SFA-mediated apoptotic death of human CPCs. Design: Human CPCs were isolated from cardiac appendages of non-diabetic donors and then exposed to palmitate with or without pre-treatment with the GLP1R agonist exendin-4...
August 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28936744/cardiac-telocyte-derived-exosomes-and-their-possible-implications-in-cardiovascular-pathophysiology
#2
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
#3
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
#4
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/28936734/exosomes-as-new-intercellular-mediators-in-development-and-therapeutics-of-cardiomyocyte-hypertrophy
#5
Qi Huang, Benzhi Cai
Myocardial hypertrophy is a common cardiac condition in response to hemodynamic and neurohormonal alterations. Pathological hypertrophic growth in hearts caused the decline of cardiac functions, and finally developed into congestive heart failure. The exosomes are small membrane vesicles which are secreted by various cells and play important roles in cellular communication, migration, proliferation and differentiation. Recent studies uncovered that the exosomes from cardiac fibroblasts and other tissues participates in the development of myocardial hypertrophy...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28923792/p2y2-nucleotide-receptor-prompts-human-cardiac-progenitor-cell-activation-by-modulating-hippo-signaling
#6
Farid G Khalafalla, Steven R Greene, Hashim Khan, Kelli Ilves, Megan M Monsanto, Roberto Alvarez, Monica Chavarria, Jonathan H Nguyen, Benjamin Norman, Walter P Dembitsky, Mark A Sussman
Rationale: Autologous stem cell therapy using human c-Kit(+) cardiac progenitor cells (hCPCs) is a promising therapeutic approach for treatment of heart failure (HF). However, hCPCs derived from aged HF patients with genetic predispositions and/or comorbidities of chronic diseases exhibit poor proliferative and migratory capabilities, which impairs overall reparative potential for injured myocardium. Therefore, empowering functionally compromised hCPCs with pro-regenerative molecules ex vivo is crucial for improving the therapeutic outcome in HF patients...
September 18, 2017: Circulation Research
https://www.readbyqxmd.com/read/28920705/human-endothelial-progenitor-cell-derived-exosomes-increase-proliferation-and-angiogenesis-in-cardiac-fibroblasts-by-promoting-the-mesenchymal-endothelial-transition-and-reducing-high-mobility-group-box-1-protein-b1-expression
#7
Xiao Ke, Dahao Yang, Jiawen Liang, Xing Wang, Shaoyun Wu, Xiaoqing Wang, Chengheng Hu
Myocardial fibrosis is a characteristic feature of cardiomyopathies. However, no effective strategies to attenuate cardiac fibrosis are currently available. Late-stage endothelial progenitor cells (EPCs) are precursors of endothelial cells (ECs) that repair the heart through a paracrine mechanism. In the present study, we tested whether EPC-derived exosomes regulate the differentiation of fibroblasts into ECs. We isolated late-stage EPCs from human peripheral blood (PB) and used immunofluorescence and flow cytometry to confirm their identity...
September 18, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28891400/glycosylated-cell-surface-markers-for-the-isolation-of-human-cardiac-progenitors
#8
Asja T Moerkamp, Hau Wan Leung, Noortje A M Bax, Stephanie Holst, Kirsten Lodder, Thijs Berends, Calinda K E Dingenouts, Andre Boon Hwa Choo, Anke M Smits, Marie-Jose Goumans
The aim of stem cell therapy after cardiac injury is to replace damaged cardiac tissue. Human cardiac progenitor cells (CPCs) represent an interesting cell population for clinical strategies to treat cardiac disease and human CPC-specific antibodies would aid in the clinical implementation of cardiac progenitor based cell therapy. However, the field of CPC biology suffers from the lack of human CPC-specific markers. Therefore, we raised a panel of monoclonal antibodies (mAb) against CPCs Of this panel of antibodies, we show that mAb C1096 recognizes a progenitor-like population in the fetal and adult human heart and partially co-localize with reported CPC populations in vitro...
September 11, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28885685/gut-microbiota-derived-endotoxin-enhanced-the-incidence-of-cardia-bifida-during-cardiogenesis
#9
Jing Zhang, Guang Wang, Jia Liu, Lin-Rui Gao, Meng Liu, Chao-Jie Wang, Manli Chuai, Yongping Bao, Ge Li, Rui-Man Li, Yu Zhang, Xuesong Yang
Background Cytotoxicity and inflammation-associated toxic responses could be induced by bacterial lipopolysaccharides (LPS) in vitro and in vivo respectively. However, the mechanism involved in LPS-induced cardiac malformation in prenatal fetus is still unknown. Methods and results In this study, we demonstrated that LPS was induced in gut microbiota imbalance mice, and next, LPS exposure during gastrulation in the chick embryo increased the incidence of cardia bifida. Gene transfection and tissue transplantation trajectory indicated that LPS exposure restricted the cell migration of cardiac progenitors to primary heart field in gastrula chick embryos...
September 8, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28883470/cytoglobin-promotes-cardiac-progenitor-cell-survival-against-oxidative-stress-via-the-upregulation-of-the-nf%C3%AE%C2%BAb-inos-signal-pathway-and-nitric-oxide-production
#10
Shuning Zhang, Xiuchun Li, Frances L Jourd'heuil, Shunlin Qu, Neil Devejian, Edward Bennett, David Jourd'heuil, Chuanxi Cai
Human cardiac stem/progenitor cells (hCPCs) may serve in regenerative medicine to repair the infarcted heart. However, this approach is severely limited by the poor survival of donor cells. Recent studies suggest that the mammalian globin cytoglobin (CYGB) regulates nitric oxide (NO) metabolism and cell death. In the present study, we found that CYGB is expressed in hCPCs. Through molecular approaches aimed at increasing or decreasing CYGB expression in hCPCs, we found that CYGB functions as a pro-survival factor in response to oxidative stress...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28880277/use-of-a-neonatal-rat-system-as-a-bioincubator-to-generate-adult-like-mature-cardiomyocytes-from-human-and-mouse-pluripotent-stem-cells
#11
Gun-Sik Cho, Emmanouil Tampakakis, Peter Andersen, Chulan Kwon
Pluripotent stem cells (PSCs), including induced PSCs, hold great potential for personalized disease modeling, drug testing and cell-based therapeutics. However, cells differentiated from PSCs remain immature in a dish, and thus there are serious caveats to their use in modeling adult-onset diseases such as cardiomyopathies and Alzheimer's disease. By taking advantage of knowledge gained about mammalian development and from bioinformatics analyses, we recently developed a neonatal rat system that enables maturation of PSC-derived cardiomyocytes into cardiomyocytes analogous to those seen in adult animals...
October 2017: Nature Protocols
https://www.readbyqxmd.com/read/28870878/clinical-outcomes-after-percutaneous-coronary-intervention-with-the-combo-stent-versus-resolute-integrity-and-promus-element-stents-a-propensity-matched-analysis
#12
Deborah N Kalkman, Marlies M Kok, Liefke C van der Heijden, Pier Woudstra, Marcel Am Beijk, Jan Gp Tijssen, Clemens von Birgelen, Robbert J de Winter
AIMS: The COMBO stent combines a sirolimus-elution with an endothelial progenitor cell- capturing layer to promote early endothelialization. There has not been a head-to-head comparison of this novel device with any other currently used drug-eluting stent (DES). We compare clinical outcome at 2-years after COMBO stent placement with the Resolute Integrity or Promus Element stent in an all-comers cohort. METHODS AND RESULTS: Patients from the REMEDEE Registry (COMBO, n=1000) were matched with patients from the DUTCH PEERS trial (Promus Element/Resolute Integrity, n=1811)...
September 5, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28864889/methylglyoxal-derived-advanced-glycation-end-products-contribute-to-negative-cardiac-remodeling-and-dysfunction-post-myocardial-infarction
#13
Nick J R Blackburn, Branka Vulesevic, Brian McNeill, Cagla Eren Cimenci, Ali Ahmadi, Mayte Gonzalez-Gomez, Aleksandra Ostojic, Zhiyuan Zhong, Michael Brownlee, Paul J Beisswenger, Ross W Milne, Erik J Suuronen
Advanced glycation end-products (AGEs) have been associated with poorer outcomes after myocardial infarction (MI), and linked with heart failure. Methylglyoxal (MG) is considered the most important AGE precursor, but its role in MI is unknown. In this study, we investigated the involvement of MG-derived AGEs (MG-AGEs) in MI using transgenic mice that over-express the MG-metabolizing enzyme glyoxalase-1 (GLO1). MI was induced in GLO1 mice and wild-type (WT) littermates. At 6 h post-MI, mass spectrometry revealed that MG-H1 (a principal MG-AGE) was increased in the hearts of WT mice, and immunohistochemistry demonstrated that this persisted for 4 weeks...
September 1, 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28851980/hypoxic-stress-decreases-c-myc-protein-stability-in-cardiac-progenitor-cells-inducing-quiescence-and-compromising-their-proliferative-and-vasculogenic-potential
#14
Michael A Bellio, Mariana T Pinto, Victoria Florea, Paola A Barrios, Christy N Taylor, Ariel B Brown, Courtney Lamondin, Joshua M Hare, Ivonne H Schulman, Claudia O Rodrigues
Cardiac progenitor cells (CPCs) have been shown to promote cardiac regeneration and improve heart function. However, evidence suggests that their regenerative capacity may be limited in conditions of severe hypoxia. Elucidating the mechanisms involved in CPC protection against hypoxic stress is essential to maximize their cardioprotective and therapeutic potential. We investigated the effects of hypoxic stress on CPCs and found significant reduction in proliferation and impairment of vasculogenesis, which were associated with induction of quiescence, as indicated by accumulation of cells in the G0-phase of the cell cycle and growth recovery when cells were returned to normoxia...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28846746/ctcf-counter-regulates-cardiomyocyte-development-and-maturation-programs-in-the-embryonic-heart
#15
Melisa Gomez-Velazquez, Claudio Badia-Careaga, Ana Victoria Lechuga-Vieco, Rocio Nieto-Arellano, Juan J Tena, Isabel Rollan, Alba Alvarez, Carlos Torroja, Eva F Caceres, Anna R Roy, Niels Galjart, Paul Delgado-Olguin, Fatima Sanchez-Cabo, Jose Antonio Enriquez, Jose Luis Gomez-Skarmeta, Miguel Manzanares
Cardiac progenitors are specified early in development and progressively differentiate and mature into fully functional cardiomyocytes. This process is controlled by an extensively studied transcriptional program. However, the regulatory events coordinating the progression of such program from development to maturation are largely unknown. Here, we show that the genome organizer CTCF is essential for cardiogenesis and that it mediates genomic interactions to coordinate cardiomyocyte differentiation and maturation in the developing heart...
August 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28842629/bone-marrow-derived-cells-and-their-conditioned-medium-induce-microvascular-repair-in-uremic-rats-by-stimulation-of-endogenous-repair-mechanisms
#16
Lina Golle, Hans U Gerth, Katrin Beul, Barbara Heitplatz, Peter Barth, Manfred Fobker, Hermann Pavenstädt, Giovana S Di Marco, Marcus Brand
The reduced number of circulating stem/progenitor cells that is found in chronic kidney disease (CKD) patients may contribute to impaired angiogenic repair and decreased capillary density in the heart. Cell therapy with bone marrow-derived cells (BMDCs) has been shown to induce positive effects on the microvasculature and cardiac function, most likely due to secretion of growth factors and cytokines, all of which are present in the conditioned medium (CM); however, this is controversial. Here we showed that treatment with BMDC or CM restored vascular density and decreased the extent of fibrosis in a rat model of CKD, the 5/6 nephrectomy...
August 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28837618/therapeutic-benefits-of-intravenous-cardiosphere-derived-cell-therapy-in-rats-with-pulmonary-hypertension
#17
Ryan C Middleton, Mario Fournier, Xuan Xu, Eduardo Marbán, Michael I Lewis
Pulmonary arterial hypertension (PAH) is a progressive condition characterized by occlusive pulmonary arteriopathy, in which survival remains poor despite pharmacologic advances. The aim of this study was to evaluate the ability of cardiosphere-derived cells (CDCs), cardiac progenitor cells with potent anti-inflammatory and immunomodulatory properties, to attenuate hemodynamic and morphometric remodeling of the right ventricle (RV) and pulmonary arterioles in rats with established monocrotaline (MCT)-induced PAH...
2017: PloS One
https://www.readbyqxmd.com/read/28837147/doxorubicin-upregulates-cxcr4-via-mir-200c-zeb1-dependent-mechanism-in-human-cardiac-mesenchymal-progenitor-cells
#18
Sara Beji, Giuseppina Milano, Alessandro Scopece, Lucia Cicchillitti, Chiara Cencioni, Mario Picozza, Yuri D'Alessandra, Sarah Pizzolato, Matteo Bertolotti, Gabriella Spaltro, Angela Raucci, Giulia Piaggio, Giulio Pompilio, Maurizio C Capogrossi, Daniele Avitabile, Alessandra Magenta, Elisa Gambini
Doxorubicin (DOXO) treatment is limited by its cardiotoxicity, since it causes cardiac-progenitor-cell depletion. Although the cardioprotective role of the stromal cell-derived factor-1/C-X-C chemokine receptor type 4 (SDF1/CXCR4) axis is well established, its involvement during DOXO-induced cardiotoxicity has never been investigated. We showed that in a mouse model of DOXO-induced cardiomyopathy, CXCR4(+) cells were increased in response to DOXO, mainly in human cardiac mesenchymal progenitor cells (CmPC), a subpopulation with regenerative potential...
August 24, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28827151/endothelial-and-cardiac-progenitor-cells-for-cardiovascular-repair-a-controversial-paradigm-in-cell-therapy
#19
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/28821329/cardiac-progenitor-cell-recruitment-drives-fetal-cardiac-regeneration-by-enhanced-angiogenesis
#20
Carlos Zgheib, Maggie M Hodges, Myron W Allukian, Junwang Xu, Kara L Spiller, Joseph H Gorman, Robert C Gorman, Kenneth W Liechty
BACKGROUND: In contrast to adults, the fetal response to myocardial infarction (MI) is regenerative, requiring the recruitment of cardiac progenitor cells to replace infarcted myocardium. Macrophage contribution to tissue repair depends on their phenotype: M1 are proinflammatory and initiate angiogenesis; M2a are profibrotic and contribute to blood vessels maturation; and M2c are proremodeling and proangiogenesis. The goal of the present study was to expand on this work by examining cardiac progenitor cells recruitment, and the role of macrophages in promoting angiogenesis and cardiac regeneration in the fetal heart after MI...
August 16, 2017: Annals of Thoracic Surgery
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