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https://www.readbyqxmd.com/read/28454064/withaferin-a-a-steroidal-lactone-encapsulated-mannose-decorated-liposomes-ameliorates-rheumatoid-arthritis-by-intriguing-the-macrophage-repolarization-in-adjuvant-induced-arthritic-rats
#1
Farhath Sultana, Manoj Kumar Neog, MahaboobKhan Rasool
In order to develop a better therapeutic approach for the treatment of rheumatoid arthritis (RA), withaferin-A; a steroidal lactone incorporated with mannosylated liposomes (ML-WA) was administered to adjuvant induced arthritic rats in intent to target the synovial macrophages. The confocal microscopy studies showed a successful internalization of ML-WA in the primarily isolated synovial macrophages. Consequently, targeting synovial macrophages via ML-WA reduced the oxidative stress (ROS and NO), and paw edema, however, a progressive gain in the body weight was observed in AIA rats...
April 23, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28453374/intraocular-cytokine-levels-in-post-cataract-endophthalmitis-and-their-association-with-visual-outcome
#2
Arnaud Sauer, Ermanno Candolfi, David Gaucher, Catherine Creuzot-Garcher, Alain Bron, Christophe Chiquet, Jean-Paul Berrod, Nicolas Meyer, Gilles Prevost, Tristan Bourcier
PURPOSE: The host immune reaction during endophthalmitis, studied in particular through the intraocular cytokine network, is essential for the comprehension of the disease and the development of new therapies. Therefore, the purpose of this study was to elucidate the cytokine composition of aqueous humor during endophthalmitis. METHODS: In a multicenter case-control study, forty-nine patients with postoperative endophthalmitis and 60 controls (cataract surgery) were included...
April 28, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28448655/change-in-diabetic-retinopathy-through-2-years-secondary-analysis-of-a-randomized-clinical-trial-comparing-aflibercept-bevacizumab-and-ranibizumab
#3
Susan B Bressler, Danni Liu, Adam R Glassman, Barbara A Blodi, Alessandro A Castellarin, Lee M Jampol, Paul L Kaufman, Michele Melia, Harinderjit Singh, John A Wells
Importance: Anti-vascular endothelial growth factor (anti-VEGF) therapy for diabetic macular edema (DME) favorably affects diabetic retinopathy (DR) improvement and worsening. It is unknown whether these effects differ across anti-VEGF agents. Objective: To compare changes in DR severity during aflibercept, bevacizumab, or ranibizumab treatment for DME. Design, Setting, and Participants: Preplanned secondary analysis of data from a comparative effectiveness trial for center-involved DME was conducted in 650 participants receiving aflibercept, bevacizumab, or ranibizumab...
April 27, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28448047/a-syngeneic-mouse-model-of-metastatic-renal-cell-carcinoma-for-quantitative-and-longitudinal-assessment-of-preclinical-therapies
#4
Katherine A Murphy, Britnie R James, Andrew Wilber, Thomas S Griffith
Renal cell carcinoma (RCC) affects > 60,000 people in the United States annually, and ~ 30% of RCC patients have multiple metastases at the time of diagnosis. Metastatic RCC (mRCC) is incurable, with a median survival time of only 18 months. Immune-based interventions (e.g., interferon (IFN) and interleukin (IL)-2) induce durable responses in a fraction of mRCC patients, and multikinase inhibitors (e.g., sunitinib or sorafenib) or anti-VEGF receptor monoclonal antibodies (mAb) are largely palliative, as complete remissions are rare...
April 12, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447271/the-relationship-between-vascular-endothelial-dysfunction-and-treatment-frequency-in-neovascular-age-related-macular-degeneration
#5
Tomoko Ueda-Consolvo, Atsushi Hayashi, Mayumi Ozaki, Tomoko Nakamura, Takaaki Yagou, Shinya Abe
PURPOSE: To assess the correlation between endothelial dysfunction and frequency of antivascular endothelial growth factor (anti-VEGF) treatment for neovascular age-related macular degeneration (nAMD). METHODS: We examined 64 consecutive patients with nAMD who were evaluated for endothelial function by use of peripheral arterial tonometry (EndoPAT 2000; Itamar Medical, Caesarea, Israel) at Toyama University Hospital from January 2015. We tallied the number of anti-VEGF treatments between January 2014 and December 2015 and determined the correlation between the number of anti-VEGF injections and endothelial function expressed as the reactive hyperemia index (RHI)...
April 26, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28445154/role-of-delta-like-4-in-jagged1-induced-tumour-angiogenesis-and-tumour-growth
#6
Chern Ein Oon, Esther Bridges, Helen Sheldon, Richard C A Sainson, Adrian Jubb, Helen Turley, Russell Leek, Francesca Buffa, Adrian L Harris, Ji-Liang Li
Delta-like 4 (DLL4) and Jagged1 (JAG1) are two key Notch ligands implicated in tumour angiogenesis. They were shown to have opposite effects on mouse retinal and adult regenerative angiogenesis. In tumours, both ligands are upregulated but their relative effects and interactions in tumour biology, particularly in tumour response to therapeutic intervention are unclear. Here we demonstrate that DLL4 and JAG1 displayed equal potency in stimulating Notch target genes in HMEC-1 endothelial cells but had opposing effects on sprouting angiogenesis in vitro...
April 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445077/effect-of-epiretinal-membranes-on-antivascular-endothelial-growth-factor-treatment-for-neovascular-age-related-macular-degeneration
#7
Han Joo Cho, Jae Min Kim, Hyoung Seok Kim, Dong Won Lee, Chul Gu Kim, Jong Woo Kim
PURPOSE: To evaluate the effect of epiretinal membranes (ERMs), detected with spectral-domain optical coherence tomography (SD-OCT), on the outcome of antivascular endothelial growth factor (VEGF) treatment for neovascular age-related macular degeneration (nAMD). METHODS: A total of 434 eyes with treatment-naive nAMD were retrospectively included and analyzed. All patients were administered an initial series of 3 monthly loading injections of ranibizumab or aflibercept, followed by further injections as required...
April 26, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28442372/long-term-release-and-stability-of-pharmaceutical-proteins-delivered-from-solid-lipid-implants
#8
Moritz Vollrath, Julia Engert, Gerhard Winter
Solid lipid implants (SLIs) prepared by twin-screw (tsc) extrusion represent a promising technology platform for the sustained release of pharmaceutical proteins. In this work, we report on two aspects, long-term release and stability of released protein. First, SLIs were produced by tsc-extrusion containing the low melting triglyceride H12 and the high melting triglyceride Dynasan D118. Two different proteins available in a freeze-dried matrix containing hydroxypropyl-β-cyclodextrine (HP-β-CD) were incorporated into the lipid matrix: a monoclonal antibody (mAb) from the IgG1 class and the fab-fragment Ranibizumab (Lucentis(®))...
April 22, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28441382/hedgehog-signalling-pathway-orchestrates-angiogenesis-in-triple-negative-breast-cancers
#9
Concetta Di Mauro, Roberta Rosa, Valentina D'Amato, Paola Ciciola, Alberto Servetto, Roberta Marciano, Roberta Clara Orsini, Luigi Formisano, Sandro De Falco, Valeria Cicatiello, Maurizio Di Bonito, Monica Cantile, Francesca Collina, Angela Chambery, Bianca Maria Veneziani, Sabino De Placido, Roberto Bianco
BACKGROUND: Several evidences suggest a marked angiogenic dependency in triple-negative breast cancer (TNBC) tumorigenesis and a potential sensitivity to anti-angiogenic agents. Herein, the putative role of Hedgehog (Hh) pathway in regulating TNBC-dependent angiogenesis was investigated. METHODS: Expression and regulation of the Hh pathway transcription factor glioma-associated oncogene homolog1 protein (GLI1) were studied on the endothelial compartment and on TNBC-initiated angiogenesis...
April 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28440462/imperatorin-efficiently-blocks-tnf-%C3%AE-mediated-activation-of-ros-pi3k-akt-nf-%C3%AE%C2%BAb-pathway
#10
Ke Si Wang, Ying Lv, Zhe Wang, Juan Ma, Chunliu Mi, Xuezheng Li, Guang Hua Xu, Lian Xun Piao, Sheng Zhe Zheng, Xuejun Jin
Inflammation contributes to development and progression in a variety of cancers, including cervical cancer, which is the second leading cause of cancer deaths in women worldwide. In this study, we examined the anti-inflammatory effects of imperatorin, a psoralen-type furanocoumarin from the fruits of Angelica dahurica, in tumor necrosis factor-α (TNF-α)-stimulated HeLa cells by investigating its impact on the production and expression of cytokines and the major signal-transduction pathways. We found this compound significantly inhibited the TNF-α-induced expression of NF-κB target genes, such as COX-2, cyclin  D1, MMP-9, VEGF, IL-6 and Bcl-xL in a concentration-dependent manner...
April 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28439752/mathematical-modeling-of-cellular-cross-talk-between-endothelial-and-tumor-cells-highlights-counterintuitive-effects-of-vegf-targeted-therapies
#11
Harsh Jain, Trachette Jackson
Tumor growth and progression are critically dependent on the establishment of a vascular support system. This is often accomplished via the expression of pro-angiogenic growth factors, including members of the vascular endothelial growth factor (VEGF) family of ligands. VEGF ligands are overexpressed in a wide variety of solid tumors and therefore have inspired optimism that inhibition of the different axes of the VEGF pathway-alone or in combination-would represent powerful anti-angiogenic therapies for most cancer types...
April 24, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28439487/modified-rice-bran-hemicellulose-inhibits-vascular-endothelial-growth-factor-induced-angiogenesis-in-vitro-via-vegfr2-and-its-downstream-signaling-pathways
#12
Xia Zhu, Aya Okubo, Naoki Igari, Kentaro Ninomiya, Yukari Egashira
Angiogenesis is implicated in diverse pathological conditions such as cancer, rheumatoid arthritis, psoriasis, atherosclerosis, and retinal neovascularization. In the present study, we investigated the effects of modified rice bran hemicellulose (MRBH), a water-soluble hemicellulose preparation from rice bran treated with shiitake enzymes, on vascular endothelial growth factor (VEGF)-induced angiogenesis in vitro and its mechanism. We found that MRBH significantly inhibited VEGF-induced tube formation in human umbilical vein endothelial cells (HUVECs) co-cultured with human dermal fibroblasts...
2017: Bioscience of Microbiota, Food and Health
https://www.readbyqxmd.com/read/28439292/effects-of-bushen-tianjing-recipe-in-a-rat-model-of-tripterygium-glycoside-induced-premature-ovarian-failure
#13
Xiaofeng Xu, Yong Tan, Guorong Jiang, Xuanyi Chen, Rensheng Lai, Lurong Zhang, Guoqiang Liang
BACKGROUND: Bushen Tianjing Recipe (BTR) is a traditional Chinese herbal medicine that has been prescribed for premature ovarian failure (POF) for decades in China. Nevertheless, little is known regarding its underlying molecular mechanism. In the present study, we investigated the effects of BTR in a tripterygium glycoside (TG)-induced-POF rat model. METHODS: Three doses of BTR were administered via intragastric gavage to adult female Sprague-Dawley (SD) rats with TG-induced POF...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/28438631/in-vivo-inhibitory-activity-of-andrographolide-derivative-adn-9-against-liver-cancer-and-its-mechanisms-involved-in-inhibition-of-tumor-angiogenesis
#14
Wei Yang, Jin Zhao, Yake Wang, Haiwei Xu, Zhenwei Wu, Yangyang Hu, Kunkun Jiang, Pengpeng Shen, Cuiyun Ma, Zhenzhen Guan, Yan Zhang, Jiahui Ma, Ning Shang, Guangming Yan, Zhenji Wang, Guifu Dai
It is well known that liver cancer is a highly aggressive malignancy with poor prognosis. Andrographolide (AD), a major bioactive component of Andrographis paniculata (Burm. F.), is a potential anti-cancer pharmacophore and the synthesis of AD derivatives with better cytotoxicity to cancer cells has attracted considerable attentions. In the present study, we evaluated the in vivo inhibitory effects of ADN-9, a 15-benzylidene substituted derivative of AD, on the growth and metastasis of murine hepatoma H22 using an orthotopic xenograft model and a subcutaneous xenograft model, and we further studied the anti-angiogenic action and the related mechanisms of ADN-9 in vivo and in vitro...
April 21, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28435226/inhibition-of-lymphangiogenesis-in-vitro-and-in-vivo-by-the-multikinase-inhibitor-nintedanib
#15
Tong Lin, Lan Gong
PURPOSE: To investigate the feasibility of nintedanib, a novel triple angiokinase inhibitor, for inhibiting lymphatic endothelial cell (LEC)-induced lymphangiogenesis in vitro and inflammatory corneal lymphangiogenesis in vivo. MATERIALS AND METHODS: Methylthiazolyldiphenyl-tetrazolium bromide (MTT) test, transwell system, and tube-formation assay were used to evaluate the effects of nintedanib on the proliferation, migration, and tube formation of LECs stimulated by vascular endothelial growth factor-C (VEGF-C), basic fibroblast growth factor (bFGF), or platelet-derived growth factor-BB (PDGF-BB)...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28432719/effect-of-ficus-carica-leaf-extract-on-the-gene-expression-of-selected-factors-in-hacat-cells
#16
Murat Turkoglu, Erkin Pekmezci, Songul Kilic, Cihat Dundar, Hakan Sevinc
BACKGROUND: Ficus carica Linn. (Fc), common fig, has been traditionally used for many metabolic, cardiovasculary, respiratory, gastrointestinal, and skin disorders. Several studies were performed showing its anti-inflammatory, anti-angiogenic, anticancerogenic, and tissue-protective effects. In all of those studies, the positive effects of Fc were concluded as the result of its antioxidant and anti-inflammatory features due to the polyphenols it contains. AIMS: To study the phenolic compounds of Fc extract and to investigate the molecular basis of anti-inflammatory, anti-angiogenic, antimitotic, and anti-androgenic effects of Fc leaf extract in vitro...
April 22, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28432109/early-response-to-ranibizumab-predictive-of-functional-outcome-after-dexamethasone-for-unresponsive-diabetic-macular-oedema
#17
Maria Vittoria Cicinelli, Michele Cavalleri, Lea Querques, Alessandro Rabiolo, Francesco Bandello, Giuseppe Querques
PURPOSE: To analyse the effects of intravitreal dexamethasone implant in patients suffering from diabetic macular oedema (DME) on the basis of their visual and functional response to antivascular endothelial growth factor (VEGF) loading dose, in order to early shift to corticosteroids in poorly responding patients. DESIGN: Retrospective monocentric study. METHODS: Data of patients with diabetes shifted to 0.7 mg dexamethasone implant after three injections of ranibizumab (RNB) and followed-up to 12 months were reviewed...
April 21, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28431325/bfgf-neutralization-stimulates-vegf-secretion-in-melanoma-b16-cells
#18
Zhiyong Wang, Pei Wei, Junjian Xiang, Hong Wang
Basic fibroblast growth factor (bFGF), which is expressed by most melanoma cells, can stimulate other growth factors secretion. It is well known that bFGF induces VEGF production; however, the influence of bFGF blockade remains uncertain. Here, we investigated the effect of bFGF neutralization on VEGF expression in B16 melanoma cells. We found that bFGF blockade resulting in increased VEGF expression and activated PI3K/AKT and P44/42 MAPK pathways. Moreover, combined inhibition of bFGF and VEGF led to enhanced activity against B16 tumors in vitro and in vivo...
April 18, 2017: Cytokine
https://www.readbyqxmd.com/read/28430763/protective-effect-of-pinitol-against-inflammatory-mediators-of-rheumatoid-arthritis-via-inhibition-of-protein-tyrosine-phosphatase-non-receptor-type-22-ptpn22
#19
Kewen Zheng, Zhixuan Zhao, Na Lin, Yiyan Wu, Ying Xu, Wanli Zhang
BACKGROUND The aim of the current study was to explore the anti-arthritic effect of pinitol via assessing its effect on various inflammatory mediators and its possible mechanism of action. MATERIAL AND METHODS We assessed the anti-arthritic effect of pinitol in a formaldehyde- and CFA-induced arthritic model in Wistar Swiss albino strain rats divided into 6 groups. The rats received different doses of pinitol and indomethacin for 28 days. The arthritic index and body weight were determined at regular intervals, together with hepatic, hematological, and antioxidant parameters...
April 21, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28430655/a-study-on-the-anti-tumor-mechanism-of-total-flavonoids-from-radix-tetrastigmae-against-additional-cell-line-based-on-cox-2-mediated-wnt-%C3%AE-catenin-signaling-pathway
#20
Li Qinglin, Xin Wenxiu, Zhong Like, Fangluo, Cao Gang, Huang Ping
This study is to explore the effect of total flavonoids from Radix Tetrastigmae (TF) against hepatic cancer and discuss the acting mechanism. Proliferation of HepG2 cells was promoted by PGE2 and Butaprost. Using AH6809 as the positive control, the inhibitory effect of TF on additional cell line was detected through a CCK-8 assay, the apoptosis rate was detected by flow cytometry, and the nuclear morphology of cells were observed by Hochest33258 staining. Then PCR was applied to determine the mRNA expression...
April 6, 2017: Oncotarget
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