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Ischemia angiogenesis

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https://www.readbyqxmd.com/read/29345574/role-of-cd73-in-disease-promising-prognostic-indicator-and-therapeutic-target
#1
Jiayin Yang, Xiaohong Liao, Jerry Yu, Ping Zhou
CD73, also known as ecto-5'-nucleotidase (eN, NT5E, EC3.13.5), is the rate-limiting enzyme for adenosine generation and is expressed on multiple cells. Its expression is significantly influenced by hypoxia and inflammatory factors. During inflammation, CD73 protects endothelial barrier function and inhibits leukocyte trafficking. CD73 also promotes M2 macrophages (anti-inflammatory phenotype). In addition, CD73 is expressed on Treg cells and mediates immune suppression through adenosine. CD73 serves as an essential regulator for the immunity and inflammation...
January 16, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29339666/preventive-cold-acclimation-augments-the-reparative-function-of-endothelial-progenitor-cells-in-mice
#2
Cheng Peng, Li-Ping Wang, Xia Tao, Xiao-Hui Dong, Chun-Fang Xu, Yu Jiang, Chun-Long Liu, Hui-Fang Ma, Chuan Zhang, Alex F Chen, He-Hui Xie
BACKGROUND/AIMS: Chronic cold exposure may increase energy expenditure and contribute to counteracting obesity, an important risk factor for cerebrocardiovascular diseases. This study sought to evaluate whether preventive cold acclimation before ischemia onset might be a promising option for preventing cerebral ischemic injury. METHODS: After a 14-day cold acclimation period, young and aged mice were subjected to permanent cerebral ischemia, and histological analyses and behavioral tests were performed...
January 15, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29334965/a-novel-il-1ra-pep-fusion-protein-alleviates-blood-brain-barrier-disruption-after-ischemia-reperfusion-in-male-rats
#3
Dong-Dong Zhang, Chen Jin, Ya-Tao Zhang, Xiang-Dong Gan, Min-Ji Zou, Yuan-Yuan Wang, Wen-Liang Fu, Tao Xu, Wei-Wei Xing, Wen-Ron Xia, Dong-Gang Xu
BACKGROUND: Current options to treat clinical relapse in inflammatory central nervous system (CNS) conditions such as cerebral ischemia-reperfusion injury are limited, and agents that are more effective are required. Disruption of the blood-brain barrier is an early feature of lesion formation that correlates with clinical exacerbation and facilitates the entry of inflammatory medium and inflammatory cells. Interleukin-1 receptor antagonist (IL-1RA) is a naturally occurring anti-inflammatory antagonist of the interleukin-1 (IL-1) family...
January 15, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29324306/mechanically-resilient-injectable-scaffolds-for-intramuscular-stem-cell-delivery-and-cytokine-release
#4
Stuart A Young, Stephen E Sherman, Tyler T Cooper, Cody Brown, Fraz Anjum, David A Hess, Lauren E Flynn, Brian G Amsden
A promising strategy for treating peripheral ischemia involves the delivery of stem cells to promote angiogenesis through paracrine signaling. Treatment success depends on cell localization, retention, and survival within the mechanically dynamic intramuscular (IM) environment. Herein we describe an injectable, in situ-gelling hydrogel for the IM delivery of adipose-derived stem/stromal cells (ASCs), specifically designed to withstand the dynamic loading conditions of the lower limb and facilitate cytokine release from encapsulated cells...
January 4, 2018: Biomaterials
https://www.readbyqxmd.com/read/29323038/electroacupuncture-improves-neurovascular-unit-reconstruction-by-promoting-collateral-circulation-and-angiogenesis
#5
Lei Shi, Hong-Mei Cao, Ying Li, Shi-Xin Xu, Yan Zhang, Yang Zhang, Zhe-Feng Jin
Acupuncture at Shuigou (GV26) shows good clinical efficacy for treating stroke, but its mechanism remains poorly understood. In this study, a cerebral infarction model of ischemia/reperfusion injury received electroacupuncture at GV26 (15 Hz and 1 mA, continuous wave [biphasic pulses], for 5 minutes). Electroacupuncture effectively promoted regional cerebral blood flow on the infarct and non-infarct sides, increased infarct lesions, lectin, and number of blood vessels, upregulated von Willebrand factor and cell proliferation marker Ki67 expression, and diminished neurological severity score...
December 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29321800/vascular-protection-by-high-density-lipoprotein-associated-sphingosine-1-phosphate
#6
REVIEW
Xi Wang, Fan Wang
Epidemiological studies and animal experiments have consistently demonstrated cardiovascular protection by high-density lipoprotein (HDL). Findings from a growing number of studies further indicate that sphingosine-1-phosphate (S1P) mediates many of the beneficial effects of HDL on the cardiovascular system, including vasodilatation, angiogenesis, maintenance of endothelial barrier function, and protection against atherosclerosis and ischemia/reperfusion injury. In this review, we summarize the most recent literature investigating the effects of HDL-S1P on cardiovascular health and highlight potential opportunities for clinical translation of these findings...
November 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29318471/aav-mediated-gene-delivery-of-the-calreticulin-anti-angiogenic-domain-inhibits-ocular-neovascularization
#7
Leilei Tu, Jiang-Hui Wang, Veluchamy A Barathi, Selwyn M Prea, Zheng He, Jia Hui Lee, James Bender, Anna E King, Grant J Logan, Ian E Alexander, Youn-Shen Bee, Ming-Hong Tai, Gregory J Dusting, Bang V Bui, Jingxiang Zhong, Guei-Sheung Liu
Ocular neovascularization is a common pathological feature in diabetic retinopathy and neovascular age-related macular degeneration that can lead to severe vision loss. We evaluated the therapeutic efficacy of a novel endogenous inhibitor of angiogenesis, the calreticulin anti-angiogenic domain (CAD180), and its functional 112-residue fragment, CAD-like peptide 112 (CAD112), delivered using a self-complementary adeno-associated virus serotype 2 (scAAV2) in rodent models of oxygen-induced retinopathy and laser-induced choroidal neovascularization...
January 9, 2018: Angiogenesis
https://www.readbyqxmd.com/read/29298658/hemopexin-promotes-angiogenesis-via-up-regulating-ho-1-in-rats-after-cerebral-ischemia-reperfusion-injury
#8
Beibei Dong, Zhishen Zhang, Keliang Xie, Yongyan Yang, Yuan Shi, Chenxu Wang, Yonghao Yu
BACKGROUND: Ischemia-reperfusion (I/R) is a critical pathophysiological change of ischemic stroke. Heme-oxygenase-1 (HO-1) is a rate-limiting enzyme of eliminating excessive free heme by combining with hemopexin (HPX), a plasma protein contributing to alleviating infarct size due to ischemia stroke. This study was to investigate whether HPX could improve angiogenesis after cerebral ischemia-reperfusion via up-regulating HO-1. METHODS: Rats were randomly divided into five groups: sham, MCAO, MCAO + Vehicle, MCAO + HPX and MCAO + HPX + protoporphyrin IX (ZnPPIX, an HO-1 inhibitor)...
January 3, 2018: BMC Anesthesiology
https://www.readbyqxmd.com/read/29284691/a-to-i-editing-of-microrna-487b-alters-target-gene-selection-after-ischemia-and-promotes-neovascularization
#9
Reginald V van der Kwast, Eva van Ingen, Laura Parma, Hendrika A Peters, Paul H Quax, A Y Nossent
Rationale: Adenosine-to-inosine (A-to-I) editing of microRNAs has the potential to cause a shift in target-site selection. 2'-O-ribose-methylation (2'OMe) of adenosine residues however, has been shown to inhibit A-to-I-editing. Objective: To investigate whether angiomiR miR487b is subject to A-to-I-editing and/or 2'OMe during neovascularization. Methods and Results: cDNA was prepared from C57BL/6-mice subjected to hindlimb ischemia. Using Sanger-sequencing and endonuclease digestion, we identified and validated A-to-I-editing of the miR487b seed-sequence...
December 28, 2017: Circulation Research
https://www.readbyqxmd.com/read/29273298/recruitment-and-therapeutic-application-of-macrophages-in-skeletal-muscles-after-hind-limb-ischemia
#10
Pei-Ling Hsieh, Viktoriya Rybalko, Aaron B Baker, Laura J Suggs, Roger P Farrar
OBJECTIVE: Peripheral arterial disease can cause not only ischemia but also skeletal muscle damage. It has been known that macrophages (MPs) play an important role in coordinating muscle repair; however, phenotype transition of monocyte-MP in ischemic muscle has not been well defined. Hence, the purpose of this study was to examine the temporal recruitment of MPs and to explore their therapeutic effect on ischemic muscle regeneration. METHODS: Unilateral femoral artery excision was performed on C57BL/6 mice...
December 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29242271/snf1-sucrose-nonfermenting-1-related-kinase-promotes-angiogenesis-in-vivo
#11
Qiulun Lu, Zhonglin Xie, Chenghui Yan, Ye Ding, Zejun Ma, Shengnan Wu, Yu Qiu, Stephanie M Cossette, Michelle Bordas, Ramani Ramchandran, Ming-Hui Zou
OBJECTIVE: Snf1 (sucrose nonfermenting 1)-related kinase (SNRK) is a novel member of the AMPK (AMP-activated protein kinase)-related superfamily that is activated in the process of angiogenesis. Currently, little is known about the function of SNRK in angiogenesis in the physiological and pathological condition. APPROACH AND RESULTS: In this study, in Snrk global heterozygous knockout mice, retina angiogenesis and neovessel formation after hindlimb ischemia were suppressed...
December 14, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29242072/therapeutic-angiogenesis-by-local-sustained-release-of-microrna-126-using-poly-lactic-co-glycolic-acid-nanoparticles-in-murine-hindlimb-ischemia
#12
Shinichi Tsumaru, Hidetoshi Masumoto, Kenji Minakata, Masayasu Izuhara, Kazuhiro Yamazaki, Tadashi Ikeda, Koh Ono, Ryuzo Sakata, Kenji Minatoya
OBJECTIVE: Recent studies demonstrate that microRNAs show promising potential, including angiogenesis, in therapeutic intervention. MicroRNA-126 (miR-126) is reported to regulate angiogenesis by blocking Sprouty-related EVH1 domain-containing protein 1 (SPRED1), an endogenous inhibitor of vascular endothelial cell growth factor. In this study, we investigated the angiogenic effects of the sustained release of miR-126 loaded with poly lactic-co-glycolic acid (PLGA) nanoparticles (NPs) in a murine hindlimb ischemia model...
December 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29242062/rationale-and-design-of-the-sail-trial-for-intramuscular-injection-of-allogeneic-mesenchymal-stromal-cells-in-no-option-critical-limb-ischemia
#13
Joep G J Wijnand, Martin Teraa, Hendrik Gremmels, Femke C C van Rhijn-Brouwer, Gert J de Borst, Marianne C Verhaar
BACKGROUND: Critical limb ischemia (CLI) represents the most severe form of peripheral artery disease and has an immense impact on quality of life, morbidity, and mortality. A considerable proportion of CLI patients are ineligible for revascularization, leaving amputation as the only option. Mesenchymal stromal cells (MSCs), because of their vasculoregenerative and immunomodulatory characteristics, have emerged as a potential new treatment. METHODS: The primary objective of this trial is to investigate whether intramuscular administration of allogeneic bone marrow (BM)-derived MSCs is safe and potentially effective...
December 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29228603/elevating-vegf-a-and-pdgf-bb-secretion-by-salidroside-enhances-neoangiogenesis-in-diabetic-hind-limb-ischemia
#14
Agnes Dwi Ariyanti, Julita Sisjayawan, Jing Zhang, Jian-Qi Zhang, Gui-Xue Wang, Makoto Miyagishi, Shou-Rong Wu, Vivi Kasim
Hind-limb ischemia (HLI) is one of the major complication of diabetic patients. Angiogenesis potential in diabetic patients is severely disrupted, and the mechanism underlying it has not been fully elucidated, making it an obstacle for developing an efficient therapeutic angiogenesis strategy. Skeletal muscle cells, through their paracrine function, had been known to be critical for neoangiogenesis. Here we found that hyperglycemia upregulates the expression of skeletal muscle cells prolyl hydroxylase domain 3 (PHD3), which resulted in the decrease of the secretion of angiogenic factors, especially VEGF-A and PDGF-BB...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29225458/antiangiogenic-effect-of-dasatinib-in-murine-models-of-oxygen-induced-retinopathy-and-laser-induced-choroidal-neovascularization
#15
Songyi Seo, Wonhee Suh
Purpose: Vascular endothelial growth factor (VEGF) is a principal mediator of pathological ocular neovascularization, which is the leading cause of blindness in various ocular diseases. As Src, a non-receptor tyrosine kinase, has been implicated as one of the major signaling molecules in VEGF-mediated neovascularization, the present study aimed to investigate whether dasatinib, a potent Src kinase inhibitor, could suppress pathological ocular neovascularization in murine models of oxygen-induced retinopathy (OIR) and choroidal neovascularization (CNV)...
2017: Molecular Vision
https://www.readbyqxmd.com/read/29215316/endothelial-progenitor-cells-for-cellular-angiogenesis-and-repair-lessons-learned-from-experimental-animal-models
#16
Khawaja Husnain Haider, Salim Aziz, Mateq Ali Al-Reshidi
Stem/progenitor cell-based therapy has been extensively studied for angiomyogenic repair of the ischemic heart by regeneration of the damaged myocytes and neovascularization of the ischemic tissue through biological bypassing. Given their inherent ability to assume functionally competent endothelial phenotype and release of broad array of proangiogenic cytokines, endothelial progenitor cells (EPCs)-based therapy is deemed as most appropriate for vaculogenesis in the ischemic heart. Emulating the natural repair process that encompasses mobilization and homing-in of the bone marrow and peripheral blood EPCs, their reparability has been extensively studied in the animal models of myocardial ischemia with encouraging results...
December 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/29212221/inhibited-effects-of-cape-pno2-on-cervical-carcinoma-in-vivo-and-in-vitro-and-its-detected-metabolites
#17
Xiaofang Yao, Hao Tang, Qiao Ren, Xiaoyan Zhao, Hua Zuo, Zhubo Li
The development of advanced cervical cancer therapies is a particularly urgent need due to the strong side effects and toxicities of current treatments. Caffeic acid phenethyl ester (CAPE) exhibits broad-spectrum antitumor activities and little toxicity or side effects. In our previous study, caffeic acid para-nitro phenethyl ester (CAPE-pNO2) significantly improved the effect of anti-platelet aggregation and attenuated myocardial ischemia. Based on this finding, we aimed to further explore the antitumor activity of CAPE-pNO2 in cervical cancer cells and tumor xenografts...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29201897/combined-treatment-with-an-anticoagulant-and-a-vasodilator-prevents-steroid-associated-osteonecrosis-of-rabbit-femoral-heads-by-improving-hypercoagulability
#18
Fang Cao, Ge Liu, Wei Wang, Benjie Wang, Xiaowei Wei, Faqiang Lu, Fan Yang, Kai Kang, Yongxuan Wang, Jiahui Yang, Kairong Qin, Dewei Zhao
Steroid-associated osteonecrosis of the femoral head remains a challenging problem in orthopedics worldwide. One pathomechanism is ischemia of the femoral head, as a result of thrombus formation and vasoconstriction. The present study investigates the effects of combination prevention with enoxaparin and EGb 761 on steroid-associated ONFH in rabbits. Rabbits were randomly divided into 5 groups (control group, model group, enoxaparin group, ginkgo group, and combination group). With the exception of the control group, the groups of rabbits were modeled with lipopolysaccharide and methylprednisolone acetate...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29190969/effect-of-oxytocin-on-the-survival-of-random-skin-flaps
#19
Peng-Fu Xu, Miao-Jie Fang, Yu-Zhi Jin, Le-Sha Wang, Ding-Sheng Lin
Random flap transplantation is widely used to repair and rebuild skin soft tissue. However, such flaps exhibit poor survival. Plastic surgeons seek to improve flap survival. We explored whether oxytocin improved skin flap survival. Overlength random skin flaps (9 × 3 cm) were established on backs of 80 healthy male SD rats randomly divided into two groups. One group was injected daily with oxytocin (1 mg/kg; test group) and the other with normal saline (control group). On postoperative day 2, malondialdehyde (MDA) and superoxide dismutase (SOD) levels were measured...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29189156/post-stroke-constraint-induced-movement-therapy-increases-functional-recovery-angiogenesis-and-neurogenesis-with-enhanced-expression-of-hif-1%C3%AE-and-vegf
#20
Ce Li, Bei Zhang, Yulian Zhu, Yingying Li, Peile Liu, Beiyao Gao, Shan Tian, Liang Du, Yu-Long Bai
BACKGROUND: Constraint-Induced Movement Therapy (CIMT) is one efficient approach to improve functional recovery after ischemic stroke. The underlying molecular mechanism remains unclear. In the current study, we investigated the effects of CIMT on angiogenesis and neurogenesis. To start linking our findings to molecular mediators, we further examined the expression of hypoxia-inducible factor-1α (HIF-1α), factor inhibiting HIF-1 (FIH-1) and vascular endothelial growth factor (VEGF)...
November 28, 2017: Current Neurovascular Research
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