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Endogenous Cardiac Stem Cell

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https://www.readbyqxmd.com/read/28931784/mobilized-muse-cells-after-acute-myocardial-infarction-predict-cardiac-function-and-remodeling-in-the-chronic-phase
#1
Toshiki Tanaka, Kazuhiko Nishigaki, Shingo Minatoguchi, Takahide Nawa, Yoshihisa Yamada, Hiromitsu Kanamori, Atsushi Mikami, Hiroaki Ushikoshi, Masanori Kawasaki, Mari Dezawa, Shinya Minatoguchi
BACKGROUND: Multilineage differentiating stress-enduring (Muse) cells are SSEA3(+)and CD105(+)double-positive pluripotent-like stem cells. We aimed to examine the mobilization of Muse cells into peripheral blood after acute myocardial infarction (AMI) and their effects on left ventricular (LV) function and remodeling.Methods and Results:In 79 patients with AMI, 44 patients with coronary artery disease (CAD), and 64 normal subjects (Control), we measured the number of Muse cells in the peripheral blood by fluorescence-activated cell sorting...
September 20, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28873339/non-invasive-strategies-for-stimulating-endogenous-repair-and-regenerative-mechanisms-in-the-damaged-heart
#2
REVIEW
Fiona C Lewis, Siri Deva Kumar, Georgina M Ellison-Hughes
The adult myocardium, including human, harbours a population of resident multi-potent cardiac stem cells (CSCs), which when stimulated under the right conditions can give rise to new cardiomyocytes and vasculature. Elucidation of the cellular and molecular mechanisms that govern CSC biology and their role in myocardial regeneration will allow the design and development of optimal therapeutic interventions. It is now evident that different growth factors and cytokines govern CSC survival, proliferation, migration and differentiation, as well as playing a role in activating cardiac repair mechanisms such as improving angiogenesis, cardiomyocyte survival and limiting fibrosis...
September 2, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
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
#3
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/28770214/cardiac-stem-cells-for-myocardial-regeneration-they-are-not-alone
#4
REVIEW
Yin Yee Leong, Wai Hoe Ng, Georgina M Ellison-Hughes, Jun Jie Tan
Heart failure is the number one killer worldwide with ~50% of patients dying within 5 years of prognosis. The discovery of stem cells, which are capable of repairing the damaged portion of the heart, has created a field of cardiac regenerative medicine, which explores various types of stem cells, either autologous or endogenous, in the hope of finding the "holy grail" stem cell candidate to slow down and reverse the disease progression. However, there are many challenges that need to be overcome in the search of such a cell candidate...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28751220/the-epicardium-as-a-source-of-multipotent-adult-cardiac-progenitor-cells-their-origin-role-and-fate
#5
REVIEW
Anke M Smits, Esther Dronkers, Marie-José Goumans
Since the regenerative capacity of the adult mammalian heart is limited, cardiac injury leads to the formation of scar tissue and thereby increases the risk of developing compensatory heart failure. Stem cell therapy is a promising therapeutic approach but is facing problems with engraftment and clinical feasibility. Targeting an endogenous stem cell population could circumvent these limitations. The epicardium, a membranous layer covering the outside of the myocardium, is an accessible cell population which plays a key role in the developing heart...
July 24, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28724793/a-bag3-chaperone-complex-maintains-cardiomyocyte-function-during-proteotoxic-stress
#6
Luke M Judge, Juan A Perez-Bermejo, Annie Truong, Alexandre Js Ribeiro, Jennie C Yoo, Christina L Jensen, Mohammad A Mandegar, Nathaniel Huebsch, Robyn M Kaake, Po-Lin So, Deepak Srivastava, Beth L Pruitt, Nevan J Krogan, Bruce R Conklin
Molecular chaperones regulate quality control in the human proteome, pathways that have been implicated in many diseases, including heart failure. Mutations in the BAG3 gene, which encodes a co-chaperone protein, have been associated with heart failure due to both inherited and sporadic dilated cardiomyopathy. Familial BAG3 mutations are autosomal dominant and frequently cause truncation of the coding sequence, suggesting a heterozygous loss-of-function mechanism. However, heterozygous knockout of the murine BAG3 gene did not cause a detectable phenotype...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28670973/cellular-mechanisms-underlying-cardiac-engraftment-of-stem-cells
#7
Pushpinder Kanda, Darryl R Davis
Over the past decade, it has become clear that long-term engraftment of any ex vivo expanded cell product transplanted into injured myocardium is modest and all therapeutic regeneration is mediated by stimulation of endogenous repair rather than differentiation of transplanted cells into working myocardium. Given that increasing the retention of transplanted cells boosts myocardial function, focus on the fundamental mechanisms limiting retention and survival of transplanted cells may enable strategies to help to restore normal cardiac function...
July 3, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28655642/the-use-and-abuse-of-cre-lox-recombination-to-identify-adult-cardiomyocyte-renewal-rate-and-origin
#8
REVIEW
Iolanda Aquila, Fabiola Marino, Eleonora Cianflone, Pina Marotta, Michele Torella, Vincenzo Mollace, Ciro Indolfi, Bernardo Nadal-Ginard, Daniele Torella
The adult mammalian heart, including the human, is unable to regenerate segmental losses after myocardial infarction. This evidence has been widely and repeatedly used up-to-today to suggest that the myocardium, contrary to most adult tissues, lacks an endogenous stem cell population or more specifically a bona-fide cardiomyocyte-generating progenitor cell of biological significance. In the last 15 years, however, the field has slowly evolved from the dogma that no new cardiomyocytes were produced from shortly after birth to the present consensus that new cardiomyocytes are formed throughout lifespan...
June 24, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28639375/concise-review-challenges-in-regenerating-the-diabetic-heart-a-comprehensive-review
#9
REVIEW
Venkata R Satthenapalli, Regis R Lamberts, Rajesh G Katare
Stem cell therapy is one of the promising regenerative strategies developed to improve cardiac function in patients with ischemic heart diseases (IHD). However, this approach is limited in IHD patients with diabetes due to a progressive decline in the regenerative capacity of stem cells. This decline is mainly attributed to the metabolic memory incurred by diabetes on stem cell niche and their systemic cues. Understanding the molecular pathways involved in the diabetes-induced deterioration of stem cell function will be critical for developing new cardiac regeneration therapies...
September 2017: Stem Cells
https://www.readbyqxmd.com/read/28633074/programming-cells-for-cardiac-repair
#10
REVIEW
Rocco Romagnuolo, Michael A Laflamme
Because the heart is a poorly regenerative organ, there has been considerable interest in developing novel cell-based approaches to restore lost contractile function after myocardial infarction (MI). While a wide variety of candidate cell types have been tested in animal MI models, the vast majority of clinical trials have used adult stem cell types, usually derived from bone marrow. These studies have generally yielded disappointing results, an outcome that may reflect in part the limited cardiogenic potential of the adult stem cell sources employed...
June 17, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/28631381/tyrosine-kinase-expressed-in-hepatocellular-carcinoma-tec-controls-pluripotency-and-early-cell-fate-decisions-of-human-pluripotent-stem-cells-via-regulation-of-fibroblast-growth-factor-2-secretion
#11
Tereza Vanova, Zaneta Konecna, Zuzana Zbonakova, Giuseppe La Venuta, Karolina Zoufalova, Sarka Jelinkova, Miroslav Varecha, Vladimir Rotrekl, Pavel Krejci, Walter Nickel, Petr Dvorak, Michaela Kunova Bosakova
Human pluripotent stem cells (hPSC) require signaling provided by fibroblast growth factor (FGF) receptors. This can be initiated by the recombinant FGF2 ligand supplied exogenously, but hPSC further support their niche by secretion of endogenous FGF2. In this study, we describe a role of tyrosine kinase expressed in hepatocellular carcinoma (TEC) kinase in this process. We show that TEC-mediated FGF2 secretion is essential for hPSC self-renewal, and its lack mediates specific differentiation. Following both short hairpin RNA- and small interfering RNA-mediated TEC knock down, hPSC secretes less FGF2...
June 20, 2017: Stem Cells
https://www.readbyqxmd.com/read/28554583/autologous-and-allogeneic-cardiac-stem-cell-therapy-for-cardiovascular-diseases
#12
REVIEW
Ricardo Sanz-Ruiz, Francisco Fernández-Avilés
Stem cell therapy is one of the most promising therapeutic innovations to help restore cardiac structure and function after ischemic insults to the heart. However, phase I and II clinical trials with autologous "first-generation stem cells" have yielded inconsistent results in ischemic cardiomyopathy patients and have not produced the definitive evidence for their broad clinical application. Recently, new cell types such as cardiac stem cells (CSC) and new allogeneic sources have attracted the attention of researchers given their inherent biological, clinical and logistic advantages...
May 26, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28540181/dynamic-regulation-of-small-rnaome-during-the-early-stage-of-cardiac-differentiation-from-pluripotent-embryonic-stem-cells
#13
Yue Li, An Zeng, Ge Li, Ya-Na Guan, Huang-Tian Yang, Bairong Shen, Qing Jing
Embryonic stem cells (mESCs), having potential to differentiate into three germ-layer cells including cardiomyocytes, shall be a perfect model to help understanding heart development. Here, using small RNA deep sequencing, we studied the small RNAome in the early stage of mouse cardiac differentiation. We found that the expression pattern of most microRNA (miRNA) were highly enriched at the beginning and declined thereafter, some were still insufficiently expressed on day 6, and most miRNAs recovered in the following days...
June 2017: Genomics Data
https://www.readbyqxmd.com/read/28446444/concurrent-isolation-of-3-distinct-cardiac-stem-cell-populations-from-a-single-human-heart-biopsy
#14
Megan M Monsanto, Kevin S White, Taeyong Kim, Bingyan J Wang, Kristina Fisher, Kelli Ilves, Farid G Khalafalla, Alexandria Casillas, Kathleen Broughton, Sadia Mohsin, Walter P Dembitsky, Mark A Sussman
RATIONALE: The relative actions and synergism between distinct myocardial-derived stem cell populations remain obscure. Ongoing debates on optimal cell population(s) for treatment of heart failure prompted implementation of a protocol for isolation of multiple stem cell populations from a single myocardial tissue sample to develop new insights for achieving myocardial regeneration. OBJECTIVE: Establish a robust cardiac stem cell isolation and culture protocol to consistently generate 3 distinct stem cell populations from a single human heart biopsy...
July 7, 2017: Circulation Research
https://www.readbyqxmd.com/read/28416208/fetal-and-perinatal-stem-cells-in-cardiac-regeneration-moving-forward-to-the-paracrine-era
#15
C Balbi, S Bollini
Cardiovascular disease (CD) is a major burden for Western society. Regenerative medicine has provided encouraging results, yet it has not addressed the focal defects causing CD and mainly related to the inefficient repair programme of the heart. In this scenario, stem cells have been broadly investigated and their paracrine effect proposed as a possible working strategy to boost endogenous mechanisms of repair and regeneration from within the cardiac tissue. The scientific community is now focusing on identifying the most effective stem cell secretome, as the whole of bioactive factors and extracellular vesicles secreted by stem cells and endowed with regenerative potential...
April 12, 2017: Placenta
https://www.readbyqxmd.com/read/28386378/transplantation-of-multipotent-isl1-cardiac-progenitor-cells-preserves-infarcted-heart-function-in-mice
#16
Yunpeng Li, Shuo Tian, Ienglam Lei, Liu Liu, Peter Ma, Zhong Wang
Cell-based cardiac therapy is a promising therapeutic strategy to restore heart function after myocardial infarction (MI). However, the cell type selection and ensuing effects remain controversial. Here, we intramyocardially injected Isl1+ cardiac progenitor cells (CPCs) derived from EGFP/luciferase double-tagged mouse embryonic stem (dt-mES) cells with vehicle (fibrin gel) or phosphate-buffered saline (PBS) into the infarcted area in nude mice to assess the contribution of CPCs to the recovery of cardiac function post-MI...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28371822/elabela-apj-axis-protects-from-pressure-overload-heart-failure-and-angiotensin-ii-induced-cardiac-damage
#17
Teruki Sato, Chitose Sato, Ayumi Kadowaki, Hiroyuki Watanabe, Lena Ho, Junji Ishida, Tomokazu Yamaguchi, Akinori Kimura, Akiyoshi Fukamizu, Josef M Penninger, Bruno Reversade, Hiroshi Ito, Yumiko Imai, Keiji Kuba
Aims: Elabela/Toddler/Apela (ELA) has been identified as a novel endogenous peptide ligand for APJ/Apelin receptor/Aplnr. ELA plays a crucial role in early cardiac development of zebrafish as well as in maintenance of self-renewal of human embryonic stem cells. Apelin was the first identified APJ ligand, and exerts positive inotropic heart effects and regulates the renin-angiotensin system. The aim of this study was to investigate the biological effects of ELA in the cardiovascular system...
June 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28297574/bioactive-lipids-and-circulating-progenitor-cells-in-patients-with-cardiovascular-disease
#18
Salim S Hayek, Yuri Klyachkin, Ahmed Asfour, Nima Ghasemzadeh, Mosaab Awad, Iraj Hesaroieh, Hina Ahmed, Brandon Gray, Jinhee Kim, Edmund K Waller, Arshed A Quyyumi, Ahmed K Abdel-Latif
Bone marrow-derived progenitor cells are mobilized into the peripheral blood after acute myocardial injury and in chronic ischemic heart disease. However, the mechanisms responsible for this mobilization are poorly understood. We examined the relationship between plasma levels of bioactive lipids and number of circulating progenitor cells (CPCs) in patients (N = 437) undergoing elective or emergent cardiac catheterization. Plasma levels of sphingosine-1 phosphate (S1P) and ceramide-1 phosphate (C1P) were quantified using mass spectrometry...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28244640/mesenchymal-stem-cell-loaded-cardiac-patch-promotes-epicardial-activation-and-repair-of-the-infarcted-myocardium
#19
Qiang-Li Wang, Hai-Jie Wang, Zhi-Hua Li, Yong-Li Wang, Xue-Ping Wu, Yu-Zhen Tan
Cardiac patch is considered a promising strategy for enhancing stem cell therapy of myocardial infarction (MI). However, the underlying mechanisms for cardiac patch repairing infarcted myocardium remain unclear. In this study, we investigated the mechanisms of PCL/gelatin patch loaded with MSCs on activating endogenous cardiac repair. PCL/gelatin patch was fabricated by electrospun. The patch enhanced the survival of the seeded MSCs and their HIF-1α, Tβ4, VEGF and SDF-1 expression and decreased CXCL14 expression in hypoxic and serum-deprived conditions...
September 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28202059/cardiosphere-derived-cells-do-not-improve-cardiac-function-in-rats-with-cardiac-failure
#20
Taís Hanae Kasai-Brunswick, Andréa Rodrigues da Costa, Raiana Andrade Quintanilha Barbosa, Bruna Farjun, Fernanda Cristina Paccola Mesquita, Danúbia Silva Dos Santos, Isalira Peroba Ramos, Grazielle Suhett, Guilherme Visconde Brasil, Sandro Torrentes da Cunha, José Oscar R Brito, Juliana do Amaral Passipieri, Adriana Bastos Carvalho, Antonio Carlos Campos de Carvalho
BACKGROUND: Heart failure represents an important public health issue due to its high costs and growing incidence worldwide. Evidence showing the regenerative potential of postmitotic heart tissue has suggested the existence of endogenous cardiac stem cells in adult hearts. Cardiosphere-derived cells (CDC) constitute a candidate pool of such cardiac stem cells. Previous studies using acute myocardial infarction (MI) models in rodents demonstrated an improvement in cardiac function after cell therapy with CDC...
February 15, 2017: Stem Cell Research & Therapy
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