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https://www.readbyqxmd.com/read/28938702/correction-endothelial-microparticles-delivering-microrna-155-into-t-lymphocytes-are-involved-in-the-initiation-of-acute-graft-versus-host-disease-following-allogeneic-hematopoietic-stem-cell-transplantation
#1
Ran Zhang, Xiaoxiao Wang, Mei Hong, Ting Luo, Miaomiao Zhao, Haorui Shen, Jun Fang, Xiaojie Li, Sibin Zang, Ping Chen, Dimin Nie, Peng Zheng, Qiuling Wu, Linghui Xia
[This corrects the article DOI: 10.18632/oncotarget.15579.].
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938611/dickkopf-1-induces-angiogenesis-via-vegf-receptor-2-regulation-independent-of-the-wnt-signaling-pathway
#2
Sung Hoon Choi, Hyemi Kim, Hyun Gyu Lee, Beom Kyung Kim, Jun Yong Park, Do Young Kim, Sang Hoon Ahn, Kwang-Hyub Han, Seung Up Kim
Tumor angiogenesis is essential for invasive tumor growth and metastasis. Dickkopf-1 (DKK-1), an antagonist of Wnt signaling, participates in tumor development and progression. We evaluated whether DKK-1 stimulation induces angiogenesis and the endothelial-mesenchymal transition (EnMT). Human umbilical vein endothelial cells (HUVECs) were stimulated with recombinant DKK-1 (rDDK-1) or conditioned medium from a culture of DKK-1-transfected 293 cells. Following stimulation, the expression levels of angiogenesis-related factors and EnMT related markers were determined by immunoblot assays...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938600/application-of-dual-targeting-drug-delivery-system-for-the-improvement-of-anti-glioma-efficacy-of-doxorubicin
#3
Zhenliang Sun, Xuebing Yan, YiBo Liu, Linsheng Huang, Cheng Kong, Xiao Qu, Man Wang, Renyuan Gao, Huanlong Qin
Chemotherapy of glioma is always hampered by the unsatisfactory tumor accumulation of drugs, of which the most noticeable obstacle is the limited drug permeability from vessels into tumor inner. In the present study, we developed a novel nanocarrier for the delivery of doxorubicin to brain tumor. Such novel drug delivery system was mainly composed of a tumor homing peptide and DOX-loaded PLA nanoparticles (AP1-NP-DOX). CRKRLDRNC peptide, named as AP1, was a newly glioma affinity peptide which could specifically binds to interleukin-4 receptor (IL-4R), highly expressing on both glioma cells and angiogenesis...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938545/overexpression-of-leptin-receptor-in-human-glioblastoma-correlation-with-vasculogenic-mimicry-and-poor-prognosis
#4
Guosheng Han, Yanan Li, Yiqun Cao, Zhijian Yue, Yuhui Zhang, Laixing Wang, Jianmin Liu
Vasculogenic mimicry (VM) was an important tumor blood supply to complement the endothelial cell-dependent angiogenesis, while leptin and receptor (ObR) involved in angiogenesis in glioblastoma has been reported on previous study, but the relationship between ObR expression and VM formation in human glioblastoma tissues, as well as their prognostic significance still remains unclear. In our study, we found that VM recognized by CD31-/PAS+ immunohistochemical staining in glioblastoma tissues showed a positive correlation with leptin expression (r = 0...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938544/sialyllactose-suppresses-angiogenesis-by-inhibiting-vegfr-2-activation-and-tumor-progression
#5
Tae-Wook Chung, Eun-Young Kim, Seok-Jo Kim, Hee-Jung Choi, Se Bok Jang, Keuk-Jun Kim, Sun-Hyung Ha, Fukushi Abekura, Choong-Hwan Kwak, Cheorl-Ho Kim, Ki-Tae Ha
The oligosaccharides in human milk have various biological functions. However, the molecular mechanism(s) underlying the anti-angiogenic action of sialylated human milk oligosaccharides (HMOs) are still unclear. Here, we show that siallylactose (SL) found in human milk can inhibit the activation of vascular endothelial growth factor (VEGF)-mediated VEGF receptor-2 (VEGFR-2) by binding to its VEGF binding site (second and third IgG-like domains), thus blocking downstream signal activation. SL also inhibits growth of VEGF-stimulated endothelial cells...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938543/predictive-clinical-model-of-tumor-response-after-chemoradiation-in-rectal-cancer
#6
Marisa D Santos, Cristina Silva, Anabela Rocha, Carlos Nogueira, Fernando Castro-Poças, António Araujo, Eduarda Matos, Carina Pereira, Rui Medeiros, Carlos Lopes
Survival improvement in rectal cancer treated with neoadjuvant chemoradiotherapy (nCRT) is achieved only if pathological response occurs. Mandard tumor regression grade (TRG) proved to be a valid system to measure nCRT response. The ability to predict tumor response before treatment may significantly have impact the selection of patients for nCRT in rectal cancer. The aim is to identify potential predictive pretreatment factors for Mandard response and build a clinical predictive model design. 167 patients with locally advanced rectal cancer were treated with nCRT and curative surgery...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938538/mir-23a-targets-runx2-and-suppresses-ginsenoside-rg1-induced-angiogenesis-in-endothelial-cells
#7
Xiao-Dong Wu, Ting Guo, Li Liu, Chao Wang, Kun Zhang, Han-Qiang Liu, Feng Wang, Wen-Dong Bai, Meng-Yao Zhang
Rg1 is a predominant protopanaxatriol-type of ginsenoside found in Panax ginseng, and it has been shown to have anti-cancer effects in multiple types of cancer cells. However, Rg1 also induces the expression of proangiogenic factors, such as vascular endothelial growth factor (VEGF-A), in endothelial cells. Unfortunately, angiogenesis positively correlates with cancer development. In this study, we identified RUNX2 as a regulator of ginsenoside Rg1-induced angiogenesis for the first time. We found that RUNX2 was directly targeted and regulated by miR-23a...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938379/dark-endothelial-spots-after-descemet-membrane-endothelial-keratoplasty-may-appear-as-recurrent-fuchs-dystrophy-or-herald-graft-failure-or-rejection
#8
Vasiliki Zygoura, Lamis Baydoun, Claire Monnereau, Maria Satué, Silke Oellerich, Gerrit R J Melles
PURPOSE: To evaluate the clinical significance of dark spots in the donor endothelial cell layer as observed with specular microscopy, in patients who underwent Descemet membrane endothelial keratoplasty (DMEK) for Fuchs endothelial dystrophy (FED). METHODS: Specular microscopy images of 83 consecutive eyes up to 7 years after DMEK were retrospectively reviewed in a masked fashion for the presence of dark spots and morphologic changes in the endothelial cell layer and processed for endothelial cell density (ECD) measurements...
September 21, 2017: Cornea
https://www.readbyqxmd.com/read/28938163/tumor-cell-targeted-delivery-of-crispr-cas9-by-aptamer-functionalized-lipopolymer-for-therapeutic-genome-editing-of-vegfa-in-osteosarcoma
#9
Chao Liang, Fangfei Li, Luyao Wang, Zong-Kang Zhang, Chao Wang, Bing He, Jie Li, Zhihao Chen, Atik Badshah Shaikh, Jin Liu, Xiaohao Wu, Songlin Peng, Lei Dang, Baosheng Guo, Xiaojuan He, D W T Au, Cheng Lu, Hailong Zhu, Bao-Ting Zhang, Aiping Lu, Ge Zhang
Osteosarcoma (OS) is a highly aggressive pediatric cancer, characterized by frequent lung metastasis and pathologic bone destruction. Vascular endothelial growth factor A (VEGFA), highly expressed in OS, not only contributes to angiogenesis within the tumor microenvironment via paracrine stimulation of vascular endothelial cells, but also acts as an autocrine survival factor for tumor cell themselves, thus making it a promising therapeutic target for OS. CRISPR/Cas9 is a versatile genome editing technology and holds tremendous promise for cancer treatment...
September 13, 2017: Biomaterials
https://www.readbyqxmd.com/read/28938160/nilotinib-enhances-tumor-angiogenesis-and-counteracts-vegfr2-blockade-in-an-orthotopic-breast-cancer-xenograft-model-with-desmoplastic-response
#10
Sara Zafarnia, Jessica Bzyl-Ibach, Igor Spivak, Yongping Li, Susanne Koletnik, Dennis Doleschel, Anne Rix, Sibylle Pochon, Isabelle Tardy, Seena Koyadan, Marc van Zandvoort, Moritz Palmowski, Fabian Kiessling, Wiltrud Lederle
Vascular endothelial growth factor (VEGF)/VEGF receptor (VEGFR)-targeted therapies predominantly affect nascent, immature tumor vessels. Since platelet-derived growth factor receptor (PDGFR) blockade inhibits vessel maturation and thus increases the amount of immature tumor vessels, we evaluated whether the combined PDGFR inhibition by nilotinib and VEGFR2 blockade by DC101 has synergistic therapy effects in a desmoplastic breast cancer xenograft model. In this context, besides immunohistological evaluation, molecular ultrasound imaging with BR55, the clinically used VEGFR2-targeted microbubbles, was applied to monitor VEGFR2-positive vessels noninvasively and to assess the therapy effects on tumor angiogenesis...
September 19, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28938025/the-kaposi-s-sarcoma-associated-herpesvirus-kshv-non-structural-membrane-protein-k15-is-required-for-viral-lytic-replication-and-may-represent-a-therapeutic-target
#11
Bizunesh Abere, Tamrat M Mamo, Silke Hartmann, Naira Samarina, Elias Hage, Jessica Rückert, Sven-Kevin Hotop, Guntram Büsche, Thomas F Schulz
Kaposi's sarcoma-associated herpesvirus (KSHV) is the infectious cause of the highly vascularized tumor Kaposi's sarcoma (KS), which is characterized by proliferating spindle cells of endothelial origin, extensive neo-angiogenesis and inflammatory infiltrates. The KSHV K15 protein contributes to the angiogenic and invasive properties of KSHV-infected endothelial cells. Here, we asked whether K15 could also play a role in KSHV lytic replication. Deletion of the K15 gene from the viral genome or its depletion by siRNA lead to reduced virus reactivation, as evidenced by the decreased expression levels of KSHV lytic proteins RTA, K-bZIP, ORF 45 and K8...
September 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28938007/neuropilin-1-modulates-tgf%C3%AE-signaling-to-drive-glioblastoma-growth-and-recurrence-after-anti-angiogenic-therapy
#12
Sam C Kwiatkowski, Paola A Guerrero, Shinya Hirota, Zhihua Chen, John E Morales, Manish Aghi, Joseph H McCarty
Glioblastoma (GBM) is a rapidly progressive brain cancer that exploits the neural microenvironment, and particularly blood vessels, for selective growth and survival. Anti-angiogenic agents such as the vascular endothelial growth factor-A (VEGF-A) blocking antibody bevacizumab yield short-term benefits to patients due to blood vessel regression and stabilization of vascular permeability. However, tumor recurrence is common, and this is associated with acquired resistance to bevacizumab. The mechanisms that drive acquired resistance and tumor recurrence in response to anti-angiogenic therapy remain largely unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28938000/podoplanin-increases-the-migration-of-human-fibroblasts-and-affects-the-endothelial-cell-network-formation-a-possible-role-for-cancer-associated-fibroblasts-in-breast-cancer-progression
#13
Jaroslaw Suchanski, Anna Tejchman, Maciej Zacharski, Aleksandra Piotrowska, Jedrzej Grzegrzolka, Grzegorz Chodaczek, Katarzyna Nowinska, Janusz Rys, Piotr Dziegiel, Claudine Kieda, Maciej Ugorski
In our previous studies we showed that in breast cancer podoplanin-positive cancer-associated fibroblasts correlated positively with tumor size, grade of malignancy, lymph node metastasis, lymphovascular invasion and poor patients' outcome. Therefore, the present study was undertaken to assess if podoplanin expressed by fibroblasts can affect malignancy-associated properties of breast cancer cells. Human fibroblastic cell lines (MSU1.1 and Hs 578Bst) overexpressing podoplanin and control fibroblasts were co-cultured with breast cancer MDA-MB-231 and MCF7 cells and the impact of podoplanin expressed by fibroblasts on migration and invasiveness of breast cancer cells were studied in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28937975/umbilical-cord-blood-cells-for-treatment-of-cerebral-palsy-timing-and-treatment-options
#14
REVIEW
Courtney A McDonald, Michael C Fahey, Graham Jenkin, Suzanne L Miller
Cerebral palsy is the most common cause of physical disability in children, and there is no cure. Umbilical cord blood (UCB) cell therapy for the treatment of children with cerebral palsy is currently being assessed in clinical trials. While there is much interest in the use of UCB stem cells for neuroprotection and neuroregeneration, the mechanisms of action are not fully understood. Further, UCB contains many stem and progenitor cells of interest, and we will point out that individual cell types within UCB may elicit specific effects...
September 22, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28937879/advax4-delta-inulin-combination-adjuvant-together-with-ecmx-a-fusion-construct-of-three-protective-mtb-antigens-induces-a-potent-th1-immune-response-and-protects-mice-against-mycobacterium-tuberculosis-infection
#15
Bruno de Paula Oliveira Santos, Monalisa Martins Trentini, Renato Beilner Machado, Mara Rúbia Nunes Celes, André Kipnis, Nikolai Petrovsky, Ana Paula Junqueira-Kipnis
Tuberculosis (TB) remains a main public health concern and 10.4 million new cases occurred in 2015 around the world. BCG is the only approved vaccine against TB, but has variable efficacy and new vaccines are needed. We developed two new mTB vaccine candidates based on the recombinant fusion proteins, rCMX and rECMXformulated with Advax4, a new combination adjuvant combining delta inulin, CpG oligonucleotide and murabutide. When BALB/c mice were immunized three times intramuscularly with these vaccine formulationsInjection of Advax4 alone increased the percentage of lymphatic endothelial cells and activated macrophages (F480/CD11b(+)) in the draining lymph nodes consistent with a chemotactic adjuvant effect...
September 22, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28937872/protective-effect-of-combined-caffeic-acid-phenethyl-ester-and-bevacizumab-against-hydrogen-peroxide-induced-oxidative-stress-in-human-rpe-cells
#16
Erdem Dinc, Lokman Ayaz, Akif Hakan Kurt
PURPOSE: This study aimed to evaluate the protective effects of caffeic acid phenethyl ester (CAPE) and combined CAPE-bevacizumab against oxidative stress induced by hydrogen peroxide (H2O2) in human retinal pigment epithelium. METHODS: ARPE-19 cells were pretreated with 5, 10, and 30 μM CAPE alone and in combination with bevacizumab for 3 h, then exposed to H2O2 for 16 h. Cell viability was evaluated with the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay...
September 22, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28937866/soluble-vascular-adhesion-protein-1-mediates-spermine-oxidation-as-semicarbazide-sensitive-amine-oxidase-possible-role-in-proliferative-diabetic-retinopathy
#17
Miyuki Murata, Kousuke Noda, Akiko Kawasaki, Shiho Yoshida, Yoko Dong, Michiyuki Saito, Zhenyu Dong, Ryo Ando, Shohei Mori, Wataru Saito, Atsuhiro Kanda, Susumu Ishida
Purpose/Aim of the study: To explore the possible role of vascular adhesion protein-1 (VAP-1) via its enzymatic function as a semicarbazide-sensitive amine oxidase (SSAO) in the pathogenesis of proliferative diabetic retinopathy (PDR). MATERIALS AND METHODS: The levels of soluble VAP-1/SSAO and the unsaturated aldehyde acrolein (ACR)-conjugated protein, N(ε)-(3-formyl-3, 4-dehydropiperidino) lysine adduct (FDP-Lys), were measured in vitreous fluid samples of PDR and non-diabetic patients using ELISA...
September 22, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28937825/tanshinone-iia-inhibits-vegf-secretion-and-hif-1%C3%AE-expression-in-cultured-human-retinal-pigment-epithelial-cells-under-hypoxia
#18
Rami M Alzhrani, Qasim Alhadidi, Rinda Devi Bachu, Zahoor Shah, Surajit Dey, Sai Hs Boddu
PURPOSE: The current work intends to study the activity of tanshinone IIA on secretion of vascular endothelial growth factor (VEGF) and expression of hypoxia inducible factor 1α (HIF-1α) in human retinal pigment epithelial cells (ARPE-19 cells) under hypoxic condition. METHODS: The cytotoxicity of tanshinone IIA was tested in ARPE-19 cells by MTT assay. ARPE-19 cells were incubated with different concentrations of cobalt chloride (100, 150, and 200 µM) for 12 h, and levels of expressed HIF-1α and secreted VEGF were quantified through Western blot and ELISA, respectively...
September 22, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28937824/clinical-comparison-of-two-methods-of-graft-preparation-in-descemet-membrane-endothelial-keratoplasty
#19
Annekatrin Rickmann, Natalia Opitz, Peter Szurman, Karl Thomas Boden, Sacha Jung, Silke Wahl, Arno Haus, Lara-Jil Damm, Kai Januschowski
PURPOSE: Descemet membrane endothelial keratoplasty (DMEK) has been improved over the last decade. The aim of this study was to compare the clinical outcome of the recently introduced liquid bubble method compared to the standard manual preparation. METHODS: This retrospective study evaluated the outcome of 200 patients after DMEK surgery using two different graft preparation techniques. Ninety-six DMEK were prepared by manual dissection and 104 by the novel liquid bubble technique...
September 22, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28937681/primary-t-cells-for-mrna-mediated-immunotoxin-delivery
#20
R Eggers, A Philippi, M O Altmeyer, F Breinig, M J Schmitt
Immune cells become increasingly attractive as delivery system for immunotoxins in cancer therapy in order to reduce the intrinsic toxicity and severe side effects of chimeric protein toxins. In this study, we investigated the potential of human primary T cells to deliver a secreted immunotoxin through transient mRNA transfection. The chimeric protein toxin was directed towards the neovasculature of cancer cells by fusing a truncated version of Pseudomonas exotoxin A (PE38) to human vascular endothelial growth factor (VEGF) and to the single chain variable fragment (scFv) of anti-Her2/neu...
September 22, 2017: Gene Therapy
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