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https://www.readbyqxmd.com/read/28637178/the-at04a-vaccine-against-proprotein-convertase-subtilisin-kexin-type-9-reduces-total-cholesterol-vascular-inflammation-and-atherosclerosis-in-apoe-3leiden-cetp-mice
#1
Christine Landlinger, Marianne G Pouwer, Claudia Juno, José W A van der Hoorn, Elsbet J Pieterman, J Wouter Jukema, Guenther Staffler, Hans M G Princen, Gergana Galabova
Aims: Proprotein convertase subtilisin/kexin type 9 (PCSK9) has emerged as a promising therapeutic target for the treatment of hypercholesterolaemia and atherosclerosis. PCSK9 binds to the low density lipoprotein receptor and enhances its degradation, which leads to the reduced clearance of low density lipoprotein cholesterol (LDLc) and a higher risk of atherosclerosis. In this study, the AT04A anti-PCSK9 vaccine was evaluated for its therapeutic potential in ameliorating or even preventing coronary heart disease in the atherogenic APOE*3Leiden...
June 19, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28636974/sema3a-partially-reverses-vegf-effects-through-binding-to-neuropilin-1
#2
Bruna Palodetto, Adriana da Silva Santos Duarte, Matheus Rodrigues Lopes, Flavia Adolfo Corrocher, Fernanda Marconi Roversi, Fernanda Soares Niemann, Karla Priscila Vieira Ferro, Ana Leda Figueiredo Longhini, Paula Melo Campos, Patricia Favaro, Sara Teresinha Olalla Saad
Cross-talk between hematopoietic stem cells (HSCs) and bone marrow stromal cells (BMSCs) is essential for HSCs regulation and leukemogenesis. Studying bone marrow of myelodysplasia patients, a pre-leukemic condition, we found mRNA overexpression of vascular endothelial growth factor A (VEGFA) in CD34(+) HSCs and semaphorin 3A (SEMA3A) in BMSCs. To better understand the role of VEGFA and SEMA3A in leukemogenesis, we recruited 30 myelodysplastic syndrome (MDS) patients, 29 acute myeloid leukemia (6 secondary to MDS) patients and 12 controls...
June 3, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28633655/inhibition-of-mmp-2-and-mmp-9-decreases-cellular-migration-and-angiogenesis-in-in-vitro-models-of-retinoblastoma
#3
Anderson H Webb, Bradley T Gao, Zachary K Goldsmith, Andrew S Irvine, Nabil Saleh, Ryan P Lee, Justin B Lendermon, Rajini Bheemreddy, Qiuhua Zhang, Rachel C Brennan, Dianna Johnson, Jena J Steinle, Matthew W Wilson, Vanessa M Morales-Tirado
BACKGROUND: Retinoblastoma (Rb) is the most common primary intraocular tumor in children. Local treatment of the intraocular disease is usually effective if diagnosed early; however advanced Rb can metastasize through routes that involve invasion of the choroid, sclera and optic nerve or more broadly via the ocular vasculature. Metastatic Rb patients have very high mortality rates. While current therapy for Rb is directed toward blocking tumor cell division and tumor growth, there are no specific treatments targeted to block Rb metastasis...
June 20, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28632747/selective-cyclooxygenase-inhibition-by-sc-560-improves-hepatopulmonary-syndrome-in-cirrhotic-rats
#4
Ching-Chih Chang, Wen-Shin Lee, Hsian-Guey Hsieh, Chiao-Lin Chuang, Hui-Chun Huang, Fa-Yauh Lee, Shou-Dong Lee
OBJECTIVE: Hepatopulmonary syndrome (HPS) is characterized by hypoxia in patients with chronic liver disease. The mechanism of HPS includes pulmonary vasodilatation, inflammation, and angiogenesis. Prostaglandins synthesized by cyclooxygenases (COX) participate in vascular responsiveness, inflammation and angiogenesis, which can be modulated by COX inhibitors. We therefore evaluated the impact of COX inhibition in rats with common bile duct ligation (CBDL)-induced liver cirrhosis and HPS...
2017: PloS One
https://www.readbyqxmd.com/read/28632184/crude-fucoidan-extracts-impair-angiogenesis-in-models-relevant-for-bone-regeneration-and-osteosarcoma-via-reduction-of-vegf-and-sdf-1
#5
Fanlu Wang, Harald Schmidt, Dijana Pavleska, Thees Wermann, Andreas Seekamp, Sabine Fuchs
The marine origin polysaccharide fucoidan combines multiple biological activities. As demonstrated by various studies in vitro and in vivo, fucoidans show anti-viral, anti-tumor, anti-oxidant, anti-inflammatory and anti-coagulant properties, although the detailed molecular action remains to be elucidated. The aim of the present study is to assess the impact of crude fucoidan extracts, on the formation of vascular structures in co-culture models relevant for bone vascularization during bone repair and for vascularization processes in osteosarcoma...
June 20, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28631697/-changes-in-the-serum-concentrations-of-adhesion-molecules-and-vascular-endothelial-growth-factor-in-active-ankylosing-spondylitis-patients-taking-amtolmetin-guacil-results-of-a-56-week-prospective-%C3%B0-%C3%B1-%C3%B0%C2%B5n-label-controlled-observational-study
#6
I Z Gaydukova, E V Khondkaryan, A V Aparkina, A P Rebrov
AIM: To estimate changes in the concentrations of adhesion molecules and vascular endothelial growth factor A after 30-day additional use of amtolmetin guacil (AMG) in patients with active ankylosing spondylitis (AS) who were unresponsive to previous one-year treatment with nonsteroidal anti-inflammatory drugs (NSAIDs). SUBJECTS AND METHODS: 20 patients with active AS who had not reached a BASDAI score <4.0 at week 52 of NSAID therapy and 10 healthy individuals matched for cardiovascular risk factors were examined...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28630947/evolution-of-geographic-atrophy-in-participants-treated-with-ranibizumab-for-neovascular-age-related-macular-degeneration
#7
Alisa T Thavikulwat, Naima Jacobs-El, Jane S Kim, Elvira Agrón, Jesia Hasan, Catherine B Meyerle, David Valent, Catherine A Cukras, Henry E Wiley, Wai T Wong, Emily Y Chew
PURPOSE: To evaluate the risk factors, incidence, and rate of progression of geographic atrophy (GA) in eyes with neovascular age-related macular degeneration (nAMD) treated with ranibizumab. DESIGN: Post-hoc analysis of a prospective clinical study. PARTICIPANTS: 69 participants with nAMD in at least one eye. METHODS: Participants were prospectively treated in the study eye with 0.5 mg intravitreal ranibizumab. Study eyes received 4 monthly injections followed by pro re nata injections until a fluid-free macula was achieved on optical coherence tomography...
January 2017: Ophthalmology retina
https://www.readbyqxmd.com/read/28630660/npc-exs-alleviate-endothelial-oxidative-stress-and-dysfunction-through-the-mir-210-downstream-nox2-and-vegfr2-pathways
#8
Hua Liu, Jinju Wang, Yusen Chen, Yanfang Chen, Xiaotang Ma, Ji C Bihl, Yi Yang
We have demonstrated that neural progenitor cells (NPCs) protect endothelial cells (ECs) from oxidative stress. Since exosomes (EXs) can convey the benefit of parent cells through their carried microRNAs (miRs) and miR-210 is ubiquitously expressed with versatile functions, we investigated the role of miR-210 in the effects of NPC-EXs on oxidative stress and dysfunction in ECs. NPCs were transfected with control and miR-210 scramble/inhibitor/mimic to generate NPC-EXs(con), NPC-EXs(sc), NPC-EXs(anti-miR-210), and NPC-EXs(miR-210)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28630636/targeting-tumor-microenvironment-effects-of-chinese-herbal-formulae-on-macrophage-mediated-lung-cancer-in-mice
#9
Fei Xu, Wenqiang Cui, Zhengxiao Zhao, Weiyi Gong, Ying Wei, Jiaqi Liu, Mihui Li, Qiuping Li, Chen Yan, Jian Qiu, Baojun Liu, Jingcheng Dong
Our previous studies have shown that Qing-Re-Huo-Xue (QRHX) formulae had significant anti-inflammatory effects in chronic airway diseases such as asthma and chronic obstructive lung disease. Here, we examined the effects of QRHX on lung cancer cell invasion and the potential associated mechanism(s), mainly polarization of macrophages in the tumor microenvironment. In vivo, QRHX both inhibited tumor growth and decreased the number of tumor-associated macrophages (TAMs) in mice with lung cancer. Further study indicated that QRHX inhibited cancer-related inflammation in tumor by decreasing infiltration of TAMs and IL-6 and TNF-α production and meanwhile decreased arginase 1 (Arg-1) expression and increased inducible NO synthase (iNOS) expression...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28627960/lack-of-functional-normalisation-of-tumour-vessels-following-anti-angiogenic-therapy-in-glioblastoma
#10
Nina Obad, Heidi Espedal, Radovan Jirik, Per Oystein Sakariassen, Cecilie Brekke Rygh, Morten Lund-Johansen, Torfinn Taxt, Simone P Niclou, Rolf Bjerkvig, Olivier Keunen
Neo-angiogenesis represents an important factor for the delivery of oxygen and nutrients to a growing tumour, and is considered to be one of the main pathodiagnostic features of glioblastomas (GBM). Anti-angiogenic therapy by vascular endothelial growth factor (VEGF) blocking agents has been shown to lead to morphological vascular normalisation resulting in a reduction of contrast enhancement as seen by magnetic resonance imaging (MRI). Yet the functional consequences of this normalisation and its potential for improved delivery of cytotoxic agents to the tumour are not known...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28627623/p18-peptide-a-functional-fragment-of-pigment-epithelial-derived-factor-inhibits-angiogenesis-in-hepatocellular-carcinoma-via-modulating-vegf-vegfr2-signalling-pathway
#11
Xin Wang, Peng Xiu, Fuhai Wang, Jingtao Zhong, Honglong Wei, Zongzhen Xu, Feng Liu, Jie Li
The P18 peptide is a functional fragment of pigment epithelial-derived factor (PEDF), which is an endogenic angiogenesis inhibitor. This study sought to determine the anti-angiogenic bioactivity of the P18 peptide in hepato-cellular carcinoma (HCC) and to elucidate the underlying mechanism. Xenograft tumour growth assays demonstrated the P18 peptide suppressed angiogenesis of HCC in vivo. Wound healing, Transwell and Matrigel-culture assays indicated that the P18 peptide inhibited the cell migration and tube formation of endothelial cells (ECs) in vitro...
June 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28625129/triamcinolone-acetonide-suppresses-inflammation-and-facilitates-vascular-barrier-function-in-human-retinal-microvascular-endothelial-cells
#12
Shunsuke Imai, Tomohiro Otsuka, Akira Naito, Masamitsu Shimazawa, Hideaki Hara
BACKGROUND: Diabetic macular edema (DME) is resulted from the retinal microvascular leakage that accompanies the breakdown of blood-retinal barrier. Triamcinolone acetonide (TA) is a therapeutic agent for DME, but since the detailed mechanism of action of TA is not known, part of its action was examined. METHODS: In vitro model to enhance the permeability of human retinal microvascular endothelial cells (HRMECs) was constructed by using DME-related cytokines such as vascular endothelial growth factor (VEGF), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β)...
June 18, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28624783/malignant-pericytes-expressing-gt198-give-rise-to-tumor-cells-through-angiogenesis
#13
Liyong Zhang, Yan Wang, Mohammad H Rashid, Min Liu, Kartik Angara, Nahid F Mivechi, Nita J Maihle, Ali S Arbab, Lan Ko
Angiogenesis promotes tumor development. Understanding the crucial factors regulating tumor angiogenesis may reveal new therapeutic targets. Human GT198 (PSMC3IP or Hop2) is an oncoprotein encoded by a DNA repair gene that is overexpressed in tumor stromal vasculature to stimulate the expression of angiogenic factors. Here we show that pericytes expressing GT198 give rise to tumor cells through angiogenesis. GT198+ pericytes and perivascular cells are commonly present in the stromal compartment of various human solid tumors and rodent xenograft tumor models...
May 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624423/2-methylpyridine-1-ium-1-sulfonate-from-allium-hirtifolium-an-anti-angiogenic-compound-which-inhibits-growth-of-mcf-7-and-mda-mb-231-cells-through-cell-cycle-arrest-and-apoptosis-induction
#14
Hamid-Reza Mohammadi-Motlagh, Yalda Shokohinia, Mahdi Mojarrab, Hassan Rasouli, Ali Mostafaie
Natural products have well been recognized as sources of drugs in cancer treatment. Some medicinal plants contain the constituents with potent anti-angiogenic and anti-cancer effects, which have offered great hopes of being used as drugs for treating various cancers. The present study aims at identifying the anti-angiogenic effects of 2-Methylpyridine-1-ium-1-sulfonate (MPS) isolated from the ethyl acetate extract (EA) of Persian shallot (Allium hirtifolium). In a concentration-dependent manner, the MPS was able to inhibit endothelial cell migration and angiogenesis in both in vivo and in vitro assays, and also significantly suppressed proliferation of MCF-7 and MDA-MB-231 human breast cancer cell lines...
June 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28624391/efficacy-of-melatonin-il-25-and-siil-17b-in-tumorigenesis-associated-properties-of-breast-cancer-cell-lines
#15
Gabriela Bottaro Gelaleti, Thaiz Ferraz Borin, Larissa Bazela Maschio-Signorini, Marina Gobbe Moschetta, Bruna Victorasso Jardim-Perassi, Guilherme Berto Calvinho, Mariana Castilho Facchini, Alicia M Viloria-Petit, Debora Aparecida Pires de Campos Zuccari
Mammary tumorigenesis can be modulated by melatonin, which has oncostatic action mediated by multiple mechanisms, including the inhibition of the activity of transcription factors such as NF-κB and modulation of interleukins (ILs) expression. IL-25 is an active cytokine that induces apoptosis in tumor cells due to differential expression of its receptor (IL-17RB). IL-17B competes with IL-25 for binding to IL-17RB in tumor cells, promoting tumorigenesis. This study purpose is to address the possibility of engaging IL-25/IL-17RB signaling to enhance the effect of melatonin on breast cancer cells...
June 14, 2017: Life Sciences
https://www.readbyqxmd.com/read/28622685/increased-pdgfr-beta-and-vegfr-2-protein-levels-are-associated-with-resistance-to-platinum-based-chemotherapy-and-adverse-outcome-of-ovarian-cancer-patients
#16
Stefanie Avril, Yasemin Dincer, Katharina Malinowsky, Claudia Wolff, Sibylle Gündisch, Alexander Hapfelmeier, Melanie Boxberg, Holger Bronger, Karl-Friedrich Becker, Barbara Schmalfeldt
Despite frequent initial response rates of epithelial ovarian cancer to platinum-based chemotherapy the majority of patients develop drug resistance. Our aim was to evaluate differential expression of signaling-pathway proteins in platinum-sensitive versus platinum-resistant primary epithelial ovarian cancer specimens to identify predictive biomarkers for treatment response.192 patients were studied comprising of independent training (n = 89) and validation (n = 103) cohorts. Full-length proteins were extracted from paraffin-embedded samples including multiple regions per tumor to account for intratumoral heterogeneity...
June 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28621580/vegfr-2-inhibitors-and-the-therapeutic-applications-thereof-a-patent-review-2012-2016
#17
Fan-Wei Peng, Da-Ke Liu, Qing-Wen Zhang, Yun-Gen Xu, Lei Shi
Angiogenesis is an important component of certain normal physiological processes, but aberrant angiogenesis contributes to some pathological disorders and in particular to tumor growth. Activation of vascular endothelial growth factor receptor-2 (VEGFR-2) by vascular endothelial growth factor (VEGF) is a critical step in the signal transduction pathway that initiates tumor angiogenesis. Inhibition of angiogenesis via blocking VEGF/VEGFR-2 signaling pathway has emerged as a potential approach to anticancer therapy...
June 16, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28621261/ag488-as-a-therapy-against-gliomas
#18
Jadith Ziegler, Anja Bastian, Megan Lerner, Lora Bailey-Downs, Debra Saunders, Nataliya Smith, Jake Sutton, James D Battiste, Michael A Ihnat, Aleem Gangjee, Rheal A Towner
High-grade gliomas such as glioblastomas (GBM) present a deadly prognosis following diagnosis and very few effective treatment options. Here, we investigate if the small molecule AG488 can be an effective therapy against GBM with both anti-angiogenic as well as an anti-microtubule inhibiting modalities, using a human G55 glioma xenograft model in nude mice. From in vitro studies, we report that AG488 incubation reduced cell viability in G55 and HMEC-1 cells more so than TMZ treatment, and AG488 treatment also decreased cell viability in normal astrocytes, but not as much as for G55 cells (p<0...
May 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28620652/visual-and-morphologic-outcomes-in-eyes-with-hard-exudate-in-the-comparison-of-age-related-macular-degeneration-treatments-trials
#19
Ebenezer Daniel, Juan E Grunwald, Benjamin J Kim, Maureen G Maguire, Glenn J Jaffe, Cynthia A Toth, Frederick L Ferris, Daniel F Martin, James Shaffer, Gui-Shuang Ying
PURPOSE: To compare baseline characteristics, visual acuity (VA) and morphological outcomes between eyes with baseline hard exudates (HE) and all other eyes among patients with neovascular age-related macular degeneration (NVAMD) treated with anti-vascular endothelial growth factors (anti-VEGF). DESIGN: Prospective cohort study within the Comparison of Age-Related Macular Degeneration Treatments Trials (CATT). PARTICIPANTS: Patients with NVAMD...
January 2017: Ophthalmology retina
https://www.readbyqxmd.com/read/28619504/kolaviron-shows-anti-proliferative-effect-and-down-regulation-of-vascular-endothelial-growth-factor-c-and-toll-like-receptor-2-in-wuchereria-bancrofti-infected-blood-lymphocytes
#20
Aliyu Muhammad, Audu Funmilola, Idowu A Aimola, Iliya S Ndams, Mairo H Inuwa, Andrew J Nok
The anti-proliferative effect and down regulation of vascular endothelial growth factor C and toll like receptor-2 by kolaviron on Wuchereria bancrofti infected peripheral blood lymphocytes were investigated. Blood were collected from consenting volunteers in Talata Mafara, Nigeria, between the hours of 10pm to 12am, and microscopically identified for microfilariae. W. bancrofti positive samples were cultured for 72h treated with Doxycycline (2μg/ml) and kolaviron (5μg/ml) in vitro. Mitotic index, expression of vascular endothelial growth factor-C (VEGF-c), toll like receptor-2 (TLR-2) were determined using standard procedures...
June 12, 2017: Journal of Infection and Public Health
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