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Endostatin

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https://www.readbyqxmd.com/read/28771739/endostatin-sensitizes-p53-deficient-non-small-cell-lung-cancer-to-genotoxic-chemotherapy-by-targeting-dna-pkcs
#1
Lin Jia, Xin-An Lu, Guanghua Liu, Shan Wang, Min Xu, Yang Tian, Shaosen Zhang, Yan Fu, Yongzhang Luo
Endostatin was discovered as an endogenous angiogenesis inhibitor with broad-spectrum antitumor activities. Although clinical efficacy was observed when combining endostatin with standard chemotherapy for non-small cell lung cancer (NSCLC), as well as other cancer types, the specific mechanisms underlying the benefit of endostatin are not completely understood. Extensive investigations suggest that endostatin is a multifunctional protein possessing more than anti-angiogenic activity. Here, we identified that endostatin exerts a direct chemosensitizing effect on p53-deficient tumor cells...
August 3, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28769047/effect-of-niacin-on-inflammation-and-angiogenesis-in-a-murine-model-of-ulcerative-colitis
#2
Hesham Aly Salem, Walaa Wadie
Butyrate and niacin are produced by gut microbiota, however butyrate has received most attention for its effects on colonic health. The present study aimed at exploring the effect of niacin on experimental colitis as well as throwing some light on the ability of niacin to modulate angiogenesis which plays a crucial role of in the pathogenesis of inflammatory bowel disease. Rats were given niacin for 2 weeks. On day 8, colitis was induced by intrarectal administration of iodoacetamide. Rats were sacrificed on day 15 and colonic damage was assessed macroscopically and histologically...
August 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28755991/optimization-of-high-concentration-endostatin-formulation-harmonization-of-excipients-contributions-on-colloidal-and-conformational-stabilities
#3
Shujing Wang, Xinyi Zhang, Guoliang Wu, Zhou Tian, Feng Qian
Recently, increasing research efforts have been devoted into developing high-concentration protein drugs for subcutaneous injection, especially for those with short half-lives and high-dose requirement. Proteins at high concentrations normally present increased colloidal and structural instability, such as aggregation, fibrillation and gelation, which significantly challenges the high-concentration formulation development of protein drugs. Here we used endostatin, a 20kD recombinant protein, as a model drug for high-concentration formulation optimization...
July 26, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28736303/the-good-and-the-bad-collagens-of-fibrosis-their-role-in-signaling-and-organ-function
#4
M A Karsdal, S H Nielsen, D J Leeming, L L Langholm, M J Nielsen, T Manon-Jensen, A Siebuhr, N S Gudmann, S Rønnow, J M Sand, S J Daniels, J H Mortensen, D Schuppan
Usually the dense extracellular structure in fibrotic tissues is described as extracellular matrix (ECM) or simply as collagen. However, fibrosis is not just fibrosis, which is already exemplified by the variant morphological characteristics of fibrosis due to viral versus cholestatic, autoimmune or toxic liver injury, with reticular, chicken wire and bridging fibrosis. Importantly, the overall composition of the ECM, especially the relative amounts of the many types of collagens, which represent the most abundant ECM molecules and which centrally modulate cellular functions and physiological processes, changes dramatically during fibrosis progression...
July 20, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28727816/high-levels-of-flt3-ligand-in-bone-marrow-and-peripheral-blood-of-patients-with-advanced-multiple-myeloma
#5
Normann Steiner, Roman Hajek, Sabina Sevcikova, Bojana Borjan, Karin Jöhrer, Georg Göbel, Gerold Untergasser, Eberhard Gunsilius
INTRODUCTION: Multiple myeloma (MM) is still incurable due to resistance against various therapies. Thus, the identification of biomarkers predicting progression is urgently needed. Here, we evaluated four biomarkers in bone marrow and peripheral blood of MM patients for their prognostic significance. MATERIALS & METHODS: Bone marrow- and peripheral blood plasma levels of FLT3-L, soluble TIE2, endostatin, and osteoactivin were determined in patients with monoclonal gammopathy of undetermined significance (MGUS, n = 14/n = 4), patients with newly diagnosed MM (NDMM, n = 42/n = 31) and patients with relapsed/refractory MM (RRMM, n = 27/n = 16) by sandwich ELISA...
2017: PloS One
https://www.readbyqxmd.com/read/28726562/gene-therapy-for-age-related-macular-degeneration
#6
Nicholas A Moore, Peter Bracha, Rehan M Hussain, Nuria Morral, Thomas A Ciulla
In neovascular age related macular degeneration (nAMD), gene therapy to chronically express anti-vascular endothelial growth factor (VEGF) proteins could ameliorate the treatment burden of chronic intravitreal therapy and improve limited visual outcomes associated with 'real world' undertreatment. Areas covered: In this review, the authors assess the evolution of gene therapy for AMD. Adeno-associated virus (AAV) vectors can transduce retinal pigment epithelium; one such early application was a phase I trial of AAV2-delivered pigment epithelium derived factor gene in advanced nAMD...
July 20, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28718231/endostatin-concentration-in-plasma-of-healthy-human-volunteers
#7
Inayat Shah, Muhammad Omar Malik, Muhammad Jaffar Khan, Sadia Fatima, Ronald Hugh Baxendale, Syed Hamid Habib
BACKGROUND: Angiogenesis is involved in many cardiovascular and cancerous diseases, including atherosclerosis and is controlled by a fine balance between angiogenic and angiostatic mediators. Endostatin is one of the main angiostatic mediators, and inhibits angiogenesis and prevents progression of atherosclerosis. The available literature shows a broad range of concentrations in relatively small samples of healthy controls and is calculated by using different techniques. This study was aimed to determine the basal endostatin concentration in plasma of healthy volunteers, to fully understand its physiological role...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28716979/blood-biomarkers-for-the-early-diagnosis-of-stroke-the-stroke-chip-study
#8
Alejandro Bustamante, Elena López-Cancio, Sara Pich, Anna Penalba, Dolors Giralt, Teresa García-Berrocoso, Carles Ferrer-Costa, Teresa Gasull, María Hernández-Pérez, Mónica Millan, Marta Rubiera, Pedro Cardona, Luis Cano, Helena Quesada, Mikel Terceño, Yolanda Silva, Mar Castellanos, Moisés Garces, Silvia Reverté, Xavier Ustrell, Rafael Marés, Joan Josep Baiges, Joaquín Serena, Francisco Rubio, Eduardo Salas, Antoni Dávalos, Joan Montaner
BACKGROUND AND PURPOSE: Stroke diagnosis could be challenging in the acute phase. We aimed to develop a blood-based diagnostic tool to differentiate between real strokes and stroke mimics and between ischemic and hemorrhagic strokes in the hyperacute phase. METHODS: The Stroke-Chip was a prospective, observational, multicenter study, conducted at 6 Stroke Centers in Catalonia. Consecutive patients with suspected stroke were enrolled within the first 6 hours after symptom onset, and blood samples were drawn immediately after admission...
July 17, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28714365/conjugation-of-gold-nanoparticles-and-recombinant-human-endostatin-modulates-vascular-normalization-via-interruption-of-anterior-gradient-2-mediated-angiogenesis
#9
Fan Pan, Wende Yang, Wei Li, Xiao-Yan Yang, Shuhao Liu, Xin Li, Xiaoxu Zhao, Hui Ding, Li Qin, Yunlong Pan
Several studies have revealed the potential of normalizing tumor vessels in anti-angiogenic treatment. Recombinant human endostatin is an anti-angiogenic agent which has been applied in clinical tumor treatment. Our previous research indicated that gold nanoparticles could be a nanoparticle carrier for recombinant human endostatin delivery. The recombinant human endostatin-gold nanoparticle conjugates normalized vessels, which improved chemotherapy. However, the mechanism of recombinant human endostatin-gold nanoparticle-induced vascular normalization has not been explored...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28698285/therapeutic-antibody-targeting-of-notch3-signaling-prevents-mural-cell-loss-in-cadasil
#10
Arturo I Machuca-Parra, Alexander A Bigger-Allen, Angie V Sanchez, Anissa Boutabla, Jonathan Cardona-Vélez, Dhanesh Amarnani, Magali Saint-Geniez, Christian W Siebel, Leo A Kim, Patricia A D'Amore, Joseph F Arboleda-Velasquez
Cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a neurological syndrome characterized by small vessel disease (SVD), stroke, and vascular cognitive impairment and dementia caused by mutations in NOTCH3 No therapies are available for this condition. Loss of mural cells, which encompass pericytes and vascular smooth muscle cells, is a hallmark of CADASIL and other SVDs, including diabetic retinopathy, resulting in vascular instability. Here, we showed that Notch3 signaling is both necessary and sufficient to support mural cell coverage in arteries using genetic rescue in Notch3 knockout mice...
August 7, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28616903/-study-on-the-relationship-between-normalization-of-tumor-microvessels-and-ca9-for-rh-endostatin-to-inhibit-lewis-lung-cancer
#11
Lang He, Yong-Hong Sun, Kang Liu, Xing-Xing Xu, Mi Yang, Xun Wu, Li Jiang
OBJECTIVES: To explore the relationship between normalization of tumor microvessels and CA9 for rh-Endostatin to inhibit Lewis lung cancer (LLC) and the expression level of CA9 in LLC. METHODS: Lewis cells of logarithmic growth phase were collected and made into 1×10(6) mL(-1) cell suspensions were prepared. The transplanted tumor model of LLC was established on C57/BL6 mice by injected 0.2 mL cell suspensions/mice into 40 C57/BL6 mice. 40 LLC mice were randomly divided into control group and rh-ES group (20 mice per group)...
May 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28602918/angiogenic-and-angiostatic-factors-in-renal-scleroderma-associated-vasculopathy
#12
Antonietta Gigante, Luca Navarini, Domenico Margiotta, Antonio Amoroso, Biagio Barbano, Rosario Cianci, Antonella Afeltra, Edoardo Rosato
BACKGROUND: The angiogenesis in systemic sclerosis (SSc) is impaired. An imbalance of pro-angiogenic factors and angiogenesis inhibitors has been implicated in the progression of peripheral microvascular damage, defective vascular repair and fibrosis. Intrarenal resistance index are considered markers of renal vasculopathy. The aim of the study is to evaluate angiogenic and angiostatic factors (VEGF and endostatin) in SSc patients and to correlate with intrarenal hemodynamic parameters...
June 8, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28599441/effects-of-silencing-endothelin-1-on-invasion-and-vascular-formation-in-lung-cancer
#13
Zhen-Yu Zhang, Li-Li Chen, Wei Xu, Keshavraj Sigdel, Xing-Tang Jiang
Endothelin-1 (ET-1), which exists not only in the vascular endothelium but is also widely present in various tissues and cells, is an important cardiovascular regulatory factor that serves an important role in maintaining the basal vascular tone and homeostasis in the cardiovascular system. In the present study, the ET-1 gene was silenced by RNA interference, and the effects on lung cancer cell proliferation and tumor cell invasion were then detected by Cell Counting kit-8 and Transwell assays. In addition, the expression of apoptosis, growth and invasion-associated proteins, including RhoA/C, vascular endothelial growth factor, pigment epithelium-derived factor, AKT, E-cadherin and cyclooxygenase-2 was evaluated by western blotting upon silencing ET-1...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28598834/do-cell-based-tissue-engineering-products-for-meniscus-regeneration-influence-vascularization
#14
Matthias Koch, Tobias Ehrenreich, Gudrun Koehl, Girish Pattappa, Christian Pfeifer, Markus Loibl, Michael Müller, Michael Nerlich, Peter Angele, Johannes Zellner
BACKGROUND: Meniscus regeneration is observed within the peripheral, vascularized zone but decreases in the inner two thirds alongside the vascularization. Within this avascular area, cell-based tissue-engineering-approaches appears to be a promising strategy for the treatment of meniscal defects. OBJECTIVE: Evaluation of the angiogenic potential of cell-based tissue-engineering-products for meniscus healing. METHODS: Evaluation of angiogenesis induced by rabbit meniscus-pellets, meniscus-cells (MC) or mesenchymal stem-cells (MSC) in cell-based tissue-engineering-products within a rabbit meniscus-ring was performed using a transparent dorsal skin fold chamber in nude mice...
June 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28580627/age-related-modulation-of-angiogenesis-regulating-factors-in-the-swine-meniscus
#15
Alessia Di Giancamillo, Daniela Deponti, Silvia Modina, Irene Tessaro, Cinzia Domeneghini, Giuseppe Maria Peretti
An in-depth knowledge of the native meniscus morphology and biomechanics in its different areas is essential to develop an engineered tissue. Meniscus is characterized by a great regional variation in extracellular matrix components and in vascularization. Then, the aim of this work was to characterize the expression of factors involved in angiogenesis in different areas during meniscus maturation in pigs. The menisci were removed from the knee joints of neonatal, young and adult pigs, and they were divided into the inner, intermediate and outer areas...
June 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28577105/effect-of-atorvastatin-therapy-on-the-level-of-cd34-cd133-cd309-endothelial-progenitor-cells-in-patients-with-coronary-heart-disease
#16
A A Ansheles, A V Rvacheva, I V Sergienko
In 58 patients with coronary heart disease, the count of CD34(+)CD133(+)CD309(+) endothelial progenitor cells in the blood was determined and the dynamics of the content of endothelial progenitor cells, angiogenic growth factors, and lipid parameters over 3 months of atorvastatin therapy was analyzed. Atorvastatin was administered in daily doses of 10 mg (26 patients) and 40 mg (32 patients). Control group comprised 15 healthy volunteers. In patients with coronary heart disease, the count of endothelial progenitor cells was lower by 4 times, the level of VEGF was higher by 52%, and the level of endostatin was lower by 13% than in healthy volunteers...
June 3, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28572048/the-role-of-endothelial-cells-in-the-vasculopathy-of-systemic-sclerosis-a-systematic-review
#17
REVIEW
Y Mostmans, M Cutolo, C Giddelo, S Decuman, K Melsens, H Declercq, E Vandecasteele, F De Keyser, O Distler, J Gutermuth, V Smith
INTRODUCTION: Systemic sclerosis (SSc) is an autoimmune connective tissue disorder characterized by fibroproliferative vasculopathy, immunological abnormalities and progressive fibrosis of multiple organs including the skin. In this study, all English speaking articles concerning the role of endothelial cells (ECs) in SSc vasculopathy and representing biomarkers are systematically reviewed and categorized according to endothelial cell (EC) (dys)function in SSc. METHODS: A sensitive search on behalf of the EULAR study group on microcirculation in Rheumatic Diseases was developed in Pubmed, The Cochrane Library and Web of Science to identify articles on SSc vasculopathy and the role of ECs using the following Mesh terms: (systemic sclerosis OR scleroderma) AND pathogenesis AND (endothelial cells OR marker)...
May 29, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28526045/standardization-of-platelet-releasate-products-for-clinical-applications-in-cell-therapy-a-mathematical-approach
#18
Francesco Agostini, Jerry Polesel, Monica Battiston, Elisabetta Lombardi, Stefania Zanolin, Alessandro Da Ponte, Giuseppe Astori, Cristina Durante, Mario Mazzucato
BACKGROUND: Standardized animal-free components are required for manufacturing cell-based medicinal products. Human platelet concentrates are sources of growth factors for cell expansion but such products are characterized by undesired variability. Pooling together single-donor products improves consistency, but the minimal pool sample size was never determined. METHODS: Supernatant rich in growth factors (SRGF) derived from n = 44 single-donor platelet-apheresis was obtained by CaCl2 addition...
May 19, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28523566/radial-glia-cells-control-angiogenesis-in-the-developing-cerebral-cortex-through-tgf-%C3%AE-1-signaling
#19
Michele Siqueira, Daniel Francis, Diego Gisbert, Flávia Carvalho Alcantara Gomes, Joice Stipursky
Neuroangiogenesis in the developing central nervous system is controlled by interactions between endothelial cells (ECs) and radial glia (RG) neural stem cells, although RG-derived molecules implicated in these events are not fully known. Here, we investigated the role of RG-secreted TGF-β1, in angiogenesis in the developing cerebral cortex. By isolation of murine microcapillary brain endothelial cells (MBECs), we demonstrate that conditioned medium from RG cultures (RG-CM) promoted MBEC migration and formation of vessel-like structures in vitro, in a TGF-β1-dependent manner...
May 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28515673/growth-of-mcf-7-breast-cancer-cells-and-efficacy-of-anti-angiogenic-agents-in-a-hydroxyethyl-chitosan-glycidyl-methacrylate-hydrogel
#20
Hejing Wang, Junmin Qian, Yaping Zhang, Weijun Xu, Juxiang Xiao, Aili Suo
BACKGROUND: Breast cancer negatively affects women's health worldwide. The tumour microenvironment plays a critical role in tumour initiation, proliferation, and metastasis. Cancer cells are traditionally grown in two-dimensional (2D) cultures as monolayers on a flat solid surface lacking cell-cell and cell-matrix interactions. These experimental conditions deviate from the clinical situation. Improved experimental systems that can mimic the in vivo situation are required to discover new therapies, particularly for anti-angiogenic agents that mainly target intercellular factors and play an essential role in treating some cancers...
2017: Cancer Cell International
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