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myocardial endothelial cell and angiogenesis

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https://www.readbyqxmd.com/read/29930004/bmi1-progenitor-cell-ablation-impairs-the-angiogenic-response-to-myocardial-infarction
#1
Diego Herrero, Susana Cañón, Beatriz Pelacho, María Salvador-Bernáldez, Susana Aguilar, Cristina Pogontke, Rosa María Carmona, Jesús María Salvador, Jose María Perez-Pomares, Ophir David Klein, Felipe Prósper, Luis Jesús Jimenez-Borreguero, Antonio Bernad
OBJECTIVE: Cardiac progenitor cells reside in the heart in adulthood, although their physiological relevance remains unknown. Here, we demonstrate that after myocardial infarction, adult Bmi1+ (B lymphoma Mo-MLV insertion region 1 homolog [PCGF4]) cardiac cells are a key progenitor-like population in cardiac neovascularization during ventricular remodeling. APPROACH AND RESULTS: These cells, which have a strong in vivo differentiation bias, are a mixture of endothelial- and mesenchymal-related cells with in vitro spontaneous endothelial cell differentiation capacity...
June 21, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29920798/unlockable-nanocomplexes-with-self-accelerating-nucleic-acid-release-for-effective-staged-gene-therapy-of-cardiovascular-diseases
#2
Jing-Jun Nie, Bokang Qiao, Shun Duan, Chen Xu, Boya Chen, Wenjing Hao, Bingran Yu, Yulin Li, Jie Du, Fu-Jian Xu
Nucleic acid (NA)-based therapy is proposed to address serious diseases such as cardiovascular diseases (CVDs). Powerful NA delivery vehicles are essential for effective gene therapy. Herein, a novel type of delivery vehicle, an unlockable core-shell nanocomplex (Hep@PGEA) with self-accelerating NA release, is structurally designed. Hep@PGEA is composed of disulfide-bridged heparin nanoparticle (HepNP) core and low-toxicity PGEA cationic shell. In comparison with NA, heparin, a negatively charged polysaccharide macromolecule, exhibits stronger interactions with cationic species...
June 19, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29895586/extracellular-vesicle-injection-improves-myocardial-function-and-increases-angiogenesis-in-a-swine-model-of-chronic-ischemia
#3
Brittany A Potz, Laura A Scrimgeour, Vasile I Pavlov, Neel R Sodha, M Ruhul Abid, Frank W Sellke
BACKGROUND: Mesenchymal stem cell-derived extracellular vesicles (EVs) are believed to be cardioprotective in myocardial infarct. The objective of this study was to examine the effects of human mesenchymal cell-derived EV injection on cardiac function, myocardial blood flow, and vessel density in the setting of chronic myocardial ischemia. METHODS AND RESULTS: Twenty-three Yorkshire swine underwent placement of an ameroid constrictor on their left circumflex artery...
June 12, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29890255/a-novel-ca-2-current-blocker-promotes-angiogenesis-and-cardiac-healing-after-experimental-myocardial-infarction-in-mice
#4
Guozhen Cui, Qiqi Xin, Hisa Hui Ling Tseng, Maggie PuiMan Hoi, Yan Wang, Binrui Yang, InLeng Choi, Yuqiang Wang, Rong Yuan, Keji Chen, Weihong Cong, Simon MingYuen Lee
We previously reported a novel danshensu derivative (R)-(3,5,6-Trimethylpyrazinyl) methyl-2-acetoxy-3-(3,4-diacetoxyphenyl) propanoate (ADTM) that exhibited promising cardiovascular protective activities, such as antioxidant and antiplatelet activities, as well as arterial relaxation. Particularly, ADTM treatment for 24 h exhibited anti-oxidative activity and effectively protected against acute myocardial infarction (MI) in a rat model. Here, we further investigated the pharmacological actions of 14 days of treatment with ADTM in alleviating and restoring the MI size by stimulating revascularization...
June 8, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29843956/differential-but-complementary-hif1%C3%AE-and-hif2%C3%AE-transcriptional-regulation
#5
Nicholas L Downes, Nihay Laham-Karam, Minna U Kaikkonen, Seppo Ylä-Herttuala
Effective vascular regeneration could provide therapeutic benefit for multiple pathologies, especially in chronic peripheral artery disease (PAD) and myocardial ischemia. The hypoxia inducible factors (HIFs) mediate the cellular transcriptional response to hypoxia and regulate multiple processes that are required for angiogenesis to ultimately restore perfusion and oxygen supply. In endothelial cells, both HIF1α and HIF2α are known to contribute to this role; however, the extent and individual roles of each of these HIFα remain unclear...
May 9, 2018: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29843150/repetitive-transient-ischemia-induced-cardiac-angiogenesis-is-mediated-by-camkii-activation
#6
Zhuobin Chen, Benlei Li, Qiaoqiao Dong, Cheng Qian, Jun Cheng, Yanggan Wang
BACKGROUND/AIMS: Coronary angiogenesis is an important protective mechanism in response to myocardial ischemia in coronary artery disease. However, the underlying mechanisms remain largely unclear. Here, we investigated the role of CaMKII activation in ischemia-induced cardiac angiogenesis. METHODS: Repetitive transient ischemia model was established in C57/BL6 mice by daily multiple episodes (3 times/day) of short time (5 min) occlusion of the left anterior descending coronary artery for 7 days...
May 24, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29787588/angiogenic-and-pleiotropic-effects-of-vegf165-and-hgf-combined-gene-therapy-in-a-rat-model-of-myocardial-infarction
#7
Pavel I Makarevich, Konstantin V Dergilev, Zoya I Tsokolaeva, Maria A Boldyreva, Evgeniy K Shevchenko, Evgeny V Gluhanyuk, Julia O Gallinger, Mikhail Yu Menshikov, Yelena V Parfyonova
Since development of plasmid gene therapy for therapeutic angiogenesis by J. Isner this approach was an attractive option for ischemic diseases affecting large cohorts of patients. However, first placebo-controlled clinical trials showed its limited efficacy questioning further advance to practice. Thus, combined methods using delivery of several angiogenic factors got into spotlight as a way to improve outcomes. This study provides experimental proof of concept for a combined approach using simultaneous delivery of VEGF165 and HGF genes to alleviate consequences of myocardial infarction (MI)...
2018: PloS One
https://www.readbyqxmd.com/read/29772738/angiogenesis-pet-tracer-uptake-68-ga-nodaga-e-crgdyk-%C3%A2-in-induced-myocardial-infarction-and-stromal-cell-treatment-in-minipigs
#8
Thomas Rasmussen, Bjarke Follin, Jens Kastrup, Malene Brandt-Larsen, Jacob Madsen, Thomas Emil Christensen, Morten Juhl, Smadar Cohen, Karsten Pharao Hammelev, Christian Holdflod Møller, Jens Peter Goetze, Philip Hasbak, Andreas Kjær
Angiogenesis is considered integral to the reparative process after ischemic injury. The αv β₃ integrin is a critical modulator of angiogenesis and highly expressed in activated endothelial cells. 68 Ga-NODAGA-E[(cRGDyK)]₂ (RGD) is a positron-emission-tomography (PET) ligand targeted towards αv β₃ integrin. The aim was to present data for the uptake of RGD and correlate it with histology and to further illustrate the differences in angiogenesis due to porcine adipose-derived mesenchymal stromal cell (pASC) or saline treatment in minipigs after induction of myocardial infarction (MI)...
May 16, 2018: Diagnostics
https://www.readbyqxmd.com/read/29758937/the-controversial-origin-of-pericytes-during-angiogenesis-implications-for-cell-based-therapeutic-angiogenesis-and-cell-based-therapies
#9
Anna Blocki, Sebastian Beyer, Friedrich Jung, Michael Raghunath
Pericytes reside within the basement membrane of small vessels and are often in direct cellular contact with endothelial cells, fulfilling important functions during blood vessel formation and homeostasis. Recently, these pericytes have been also identified as mesenchymal stem cells. Mesenchymal stem cells, and especially their specialized subpopulation of pericytes, represent promising candidates for therapeutic angiogenesis applications, and have already been widely applied in pre-clinical and clinical trials...
2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29752623/catalpol-promotes-the-survival-and-vegf-secretion-of-bone-marrow-derived-stem-cells-and-their-role-in-myocardial-repair-after-myocardial-infarction-in-rats
#10
Xing'ai Ju, Degang Xue, Tongyi Wang, Baiping Ge, Yu Zhang, Zhanquan Li
Bone mesenchymal stem cells (BMSCs) transplantation has been recognized as an effective method for the treatment of myocardial infarction (MI). However, its efficacy is always restricted by the low survival of transplanted BMSCs in the ischemic myocardium. The aim of this study was to investigate the effect of catalpol pre-treatment on the survival and vascular endothelial growth factor (VEGF) secretion of BMSCs under oxygen glucose deprivation (OGD) condition and their role in myocardial repair in a rat model of MI...
May 11, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29751831/intravenous-injection-of-allogeneic-umbilical-cord-derived-multipotent-mesenchymal-stromal-cells-reduces-the-infarct-area-and-ameliorates-cardiac-function-in-a-porcine-model-of-acute-myocardial-infarction
#11
Meikuang Lim, Weiqiang Wang, Lu Liang, Zhi-Bo Han, Zongjin Li, Jie Geng, Meng Zhao, Honghong Jia, Jie Feng, Zhe Wei, Baoquan Song, Jiemin Zhang, Jun Li, Tianwen Liu, Fan Wang, Ting Li, Jianming Li, Yihu Fang, Jianhua Gao, Zhongchao Han
BACKGROUND: Multipotent mesenchymal stromal cell (MSC) therapy has been widely recognized as a feasible strategy for regenerating injured myocardial tissue. However, little is known about the efficacy of intravenous injection of allogeneic umbilical cord (UC) MSCs in preclinical models of porcine myocardial infarction. METHODS: Different dosages of allogeneic UC-MSCs or the vehicle [phosphate-buffered saline (PBS)] were delivered intravenously into an acute myocardial infarction (AMI) porcine model twice after coronary ligation...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29737557/notch-signaling-promotes-angiogenesis-and-improves-cardiac-function-after-myocardial-infarction
#12
Xue-Liang Zhou, Rong-Rong Zhu, Sheng Liu, Hua Xu, Xingxin Xu, Qi-Cai Wu, Ji-Chun Liu
Currently, the role of Notch signaling during myocardial infarction (MI) remains controversy. In this study we used in vitro and in vivo approaches to investigate the role of Notch signaling in MI. Using cultured human umbilical vein endothelial cells exposed to hypoxia/reoxygenation (H/R), we demonstrated that H/R inhibited the proliferation, VEGF secretion, and tube formation of HUVECs, and these effects were correlated with the inhibition of Notch signaling. Furthermore, these effects were antagonized by overexpression of NICD but aggravated by knockdown of NICD...
May 8, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29721064/coronary-serum-exosomes-derived-from-patients-with-myocardial-ischemia-regulate-angiogenesis-through-the-mir-939-mediated-nitric-oxide-signaling-pathway
#13
Hao Li, Yiteng Liao, Lei Gao, Tao Zhuang, Zheyong Huang, Hongming Zhu, Junbo Ge
Rationale: Angiogenesis is a crucial step towards tissue repair and regeneration after ischemia. The role of circulating exosomes in angiogenic signal transduction has not been well elucidated. Thus, this study aims to investigate the effects of coronary serum exosomes from patients with myocardial ischemia on angiogenesis and to elucidate the underlying mechanisms. Methods and Results: The patients were enrolled according to the inclusion and exclusion criteria. Coronary blood was obtained from the angiography catheter...
2018: Theranostics
https://www.readbyqxmd.com/read/29718531/loss-of-amigo2-causes-dramatic-damage-to-cardiac-preservation-after-ischemic-injury
#14
Xuhui Ma, Pengfei Hu, Haifeng Chen, Tianfu Fang
BACKGROUND: Recent studies have identified amphoterin-induced gene and open reading frame (AMIGO) 2. The role of AMIGO2 in tumour research is well-studied, but its role in ischemic heart diseases is seldom reported. In the present study, the role of AMIGO2 in myocardial infarction is under investigation for the first time. METHODS: For in vitro studies, cardiomyocytes (CMs) and endothelial cells (ECs) were isolated from both AMIGO2 knockout (KO) and WT mice. The apoptosis of CMs was tested after 48 h of ischemic stimulation...
May 2, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29683293/psoriasis-as-a-cardiovascular-risk-factor-updates-and-algorithmic-approach
#15
Emanuele Cozzani, Gianmarco Rosa, Martina Burlando, Aurora Parodi
Although psoriasis is predominantly a chronic inflammatory skin disorder, it has been known to be associated with cardiovascular disease. Patients with psoriasis, particularly with moderate to severe forms, present an increased rate of cardiovascular mortality, myocardial infarction and stroke. However the pathophysiology of the relationship between psoriasis and cardiovascular risk and comorbidities has not yet completely known. Chronic inflammation may be considered a solid link between psoriasis and related cardiovascular events...
April 19, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29627677/preparation-of-high-bioactivity-multilayered-bone-marrow-mesenchymal-stem-cell-sheets-for-myocardial-infarction-using-a-3d-dynamic-system
#16
Yingwei Wang, Jianhua Zhang, Zixi Qin, Zepei Fan, Cheng Lu, Baoxin Chen, Jupeng Zhao, Xiaojuan Li, Fei Xiao, Xi Lin, Zheng Wu
Cell sheet techniques offer a promising future for myocardial infarction (MI) therapy; however, insufficient nutrition supply remains the major limitation in maintaining stem cell bioactivity in vitro. In order to enhance cell sheet mechanical strength and bioactivity, a decellularized porcine pericardium (DPP) scaffold was prepared by the phospholipase A2 method, and aspartic acid was used as a spacer arm to improve the vascular endothelial growth factor crosslink efficiency on the DPP scaffold. Based on this scaffold, multilayered bone marrow mesenchymal stem cell sheets were rapidly constructed, using RAD16-I peptide hydrogel as a temporary 3D scaffold, and cell sheets were cultured in either the 3D-dynamic system (DCcs) or the traditional static condition (SCcs)...
May 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29626503/hsf1-deficiency-accelerates-the-transition-from-pressure-overload-induced-cardiac-hypertrophy-to-heart-failure-through-endothelial-mir-195a-3p-mediated-impairment-of-cardiac-angiogenesis
#17
Shijun Wang, Jian Wu, Jieyun You, Hongyu Shi, Xiaoyu Xue, Jiayuan Huang, Lei Xu, Guoliang Jiang, Lingyan Yuan, Xue Gong, Haiyan Luo, Junbo Ge, Zhaoqiang Cui, Yunzeng Zou
Heat shock transcription factor 1 (HSF1) deficiency aggravates cardiac remodeling under pressure overload. However, the mechanism is still unknown. Here we employed microRNA array analysis of the heart tissue of HSF1-knockout (KO) mice to investigate the potential roles of microRNAs in pressure overload-induced cardiac remodeling under HSF-1 deficiency, and the profiles of 478 microRNAs expressed in the heart tissues of adult HSF1-KO mice were determined. We found that the expression of 5 microRNAs was over 2-fold higher expressed in heart tissues of HSF1-KO mice than in those of wild-type (WT) control mice...
May 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29566124/sustained-release-of-endothelial-progenitor-cell-derived-extracellular-vesicles-from-shear-thinning-hydrogels-improves-angiogenesis-and-promotes-function-after-myocardial-infarction
#18
Carol W Chen, Leo L Wang, Samir Zaman, Jon Gordon, Maria F Arisi, Chantel M Venkataraman, Jennifer J Chung, George Hung, Ann C Gaffey, Lynn A Spruce, Hossein Fazelinia, Robert C Gorman, Steven H Seeholzer, Jason A Burdick, Pavan Atluri
Aims: Previous studies have demonstrated improved cardiac function following myocardial infarction (MI) after administration of endothelial progenitor cells (EPCs) into ischaemic myocardium. A growing body of literature supports paracrine effectors, including extracellular vesicles (EVs), as the main mediators of the therapeutic benefits of EPCs. The direct use of paracrine factors is an attractive strategy that harnesses the effects of cell therapy without concerns of cell engraftment or viability...
June 1, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29550018/a-dimeric-thymosin-beta-4-with-novel-bio-activity-protects-post-ischemic-cardiac-function-by-accelerating-vascular-endothelial-cell-proliferation
#19
Qiang Hao, Lei He, Jiming Zhou, Yuan Yuan, Xiaowen Ma, Zhijun Pang, Weina Li, Yingqi Zhang, Wei Zhang, Cun Zhang, Meng Li
BACKGROUND: Thymosin beta 4 (Tβ4) is a 43-amino-acid peptide with protective properties in myocardium injury. Previously, we produced a recombinant human dimeric Tβ4 (DTβ4). Here, the cardioprotective effects of DTβ4 and the molecular mechanisms underlying its enhanced activity were investigated. METHODS AND RESULTS: Echocardiography measurements showed that the cardioprotective effect of DTβ4 in myocardial infarction mice was significantly higher than that of wild-type Tβ4...
June 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29547524/endogenous-selenoprotein-p-a-liver-derived-secretory-protein-mediates-myocardial-ischemia-reperfusion-injury-in-mice
#20
Hiroshi Chadani, Soichiro Usui, Oto Inoue, Takashi Kusayama, Shin-Ichiro Takashima, Takeshi Kato, Hisayoshi Murai, Hiroshi Furusho, Ayano Nomura, Hirofumi Misu, Toshinari Takamura, Shuichi Kaneko, Masayuki Takamura
Selenoprotein P (SeP), a liver-derived secretory protein, functions as a selenium supply protein in the body. SeP has been reported to be associated with insulin resistance in humans through serial analysis of gene expression. Recently, SeP has been found to inhibit vascular endothelial growth factor-stimulated cell proliferation in human umbilical vein endothelial cells, and impair angiogenesis in a mouse hind limb model. In this study, the role of SeP in ischemia/reperfusion (I/R) injury has been investigated...
March 16, 2018: International Journal of Molecular Sciences
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