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https://www.readbyqxmd.com/read/29350899/cyclam-modified-pei-for-combined-vegf-sirna-silencing-and-cxcr4-inhibition-to-treat-metastatic-breast-cancer
#1
Yiwen Zhou, Fei Yu, Feiran Zhang, Gang Chen, Kaikai Wang, Minjie Sun, Jing Li, David Oupický
Chemokine receptor CXCR4 plays an important role in cancer cell invasion and metastasis. Recent findings suggest that anti-VEGF therapies upregulate CXCR4 expression, which contributes to resistance to antiangiogenic therapies. Here, we report the development of novel derivatives of polyethylenimine (PEI) that effectively inhibit CXCR4 while delivering anti-VEGF siRNA. PEI was alkylated with different amounts of a CXCR4-binding cyclam derivative to prepare PEI-C. Modification with the cyclam derivatives resulted in a considerable decrease in cytotoxicity when compared with unmodified PEI...
January 19, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29350455/a-novel-prognostic-six-cpg-signature-in-glioblastomas
#2
An-An Yin, Nan Lu, Amandine Etcheverry, Marc Aubry, Jill Barnholtz-Sloan, Lu-Hua Zhang, Jean Mosser, Wei Zhang, Xiang Zhang, Yu-He Liu, Ya-Long He
AIMS: We aimed to identify a clinically useful biomarker using DNA methylation-based information to optimize individual treatment of patients with glioblastoma (GBM). METHODS: A six-CpG panel was identified by incorporating genome-wide DNA methylation data and clinical information of three distinct discovery sets and was combined using a risk-score model. Different validation sets of GBMs and lower-grade gliomas and different statistical methods were implemented for prognostic evaluation...
January 19, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29348424/intraocular-inflammatory-cytokines-in-patients-with-neovascular-age-related-macular-degeneration-before-and-after-initiation-of-intravitreal-injection-of-anti-vegf-inhibitor
#3
Tomohito Sato, Masaru Takeuchi, Yoko Karasawa, Toshio Enoki, Masataka Ito
Age-related macular degeneration (AMD) is a cause of blindness in people older than 50 years. Accumulating evidence indicates the involvement of systemic and local inflammation in the pathogenesis and progression of AMD. Aflibercept is an anti-vascular endothelial growth factor (VEGF) inhibitor, and intravitreal injection of aflibercept (IVA) is the approved treatments of neovascular AMD (nAMD), but the effect on inflammatory response remains unclear. The aim of our study was to investigate the profiles of inflammatory cytokines in the aqueous humor of nAMD patients before and after initiation of IVA...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29346540/blood-and-lymphatic-vessels-contribute-to-the-impact-of-the-immune-microenvironment-on-clinical-outcome-in-non-small-cell-lung-cancer
#4
Giovanna Armani, Denise Madeddu, Giulia Mazzaschi, Giovanni Bocchialini, Francesco Sogni, Caterina Frati, Bruno Lorusso, Angela Falco, Costanza Annamaria Lagrasta, Stefano Cavalli, Chiara Mangiaracina, Rocchina Vilella, Gabriella Becchi, Letizia Gnetti, Emilia Corradini, Eugenio Quaini, Konrad Urbanek, Matteo Goldoni, Paolo Carbognani, Luca Ampollini, Federico Quaini
OBJECTIVES: Lymphangiogenesis plays a critical role in the immune response, tumour progression and therapy effectiveness. The aim of this study was to determine whether the interplay between the lymphatic and the blood microvasculature, tumour-infiltrating lymphocytes and the programmed death 1 (PD-1)/programmed death ligand 1 (PD-L1) immune checkpoint constitutes an immune microenvironment affecting the clinical outcome of patients with non-small-cell lung cancer. METHODS: Samples from 50 squamous cell carcinomas and 42 adenocarcinomas were subjected to immunofluorescence to detect blood and lymphatic vessels...
January 15, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29341195/association-between-circulating-25-hydroxyvitamin-d-levels-and-psoriasis-and-correlation-with-disease-severity-a-meta-analysis
#5
Y H Lee, G G Song
BACKGROUND: Psoriasis is a chronic, autoimmune, inflammatory skin disorder. 25-hydroxy vitamin D [25(OH)D] deficiency may contribute to the pathogenesis of psoriasis through reduction in antiproliferative, anti-inflammatory and antiangiogenic activities. AIM: To evaluate the relationship between circulating 25(OH)D levels and psoriasis, and to determine the correlation between serum/plasma 25(OH)D levels and psoriasis severity. METHODS: We performed a meta-analysis to compare serum/plasma 25(OH)D levels between patients with psoriasis and healthy controls (HCs), and to determine the correlation coefficients between circulating 25(OH)D levels and psoriasis severity as assessed by Psoriasis Area and Severity Index (PASI)...
January 16, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29338617/carbon-nanospheres-mediated-nuclear-delivery-of-smar1-protein-dna-binding-domain-controls-breast-tumor-in-mice-model
#6
Prasad N Bhagat, Sachin H Jadhav, Samit Chattopadhyay, Kishore M Paknikar
AIM: To investigate anticancer activity of the DNA binding domain of SMAR1 (His 5) in vitro and in vivo. MATERIALS & METHODS: His 5 was conjugated to hydrothermally synthesized carbon nanospheres (CNs). Anticancer activity of CNs-His 5 was evaluated in vitro and in vivo. RESULTS: CNs- His 5 significantly reduced cyclin D1 levels in MDA-MB-231 cells. Tumor bearing Balb/c mice injected with CNs-His 5 showed approximately 62% tumor regression and significantly reduced 18FDG uptake...
January 17, 2018: Nanomedicine
https://www.readbyqxmd.com/read/29336669/first-line-treatment-of-apatinib-in-elderly-patient-of-advanced-gastric-carcinoma-a-case-report-of-ngs-driven-targeted-therapy
#7
Yan Yang, Wuqiong Zhang, Jinghao Yao, Jing Liu, Shukui Qin, Qiong Wu
Gastric carcinoma (GC) is a common gastrointestinal malignancy with high incidence and mortality worldwide, and most patients are diagnosed in the late stages of disease. Palliative chemotherapy provides a survival benefit for patients with inoperable advanced GC. However, elderly patients who are unable to tolerate chemotherapy had worse prognosis due to lack of effective treatment. Herein we reported a Chinese elderly GC patient using next generation sequencing (NGS)-based tumor DNA analysis. Valuable gene variants of vascular endothelial growth factor (VEGF) A gene amplification were detected...
January 16, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29333385/kaempferol-inhibits-angiogenesis-by-suppressing-hif-1%C3%AE-and-vegfr2-activation-via-erk-p38-mapk-and-pi3k-akt-mtor-signaling-pathways-in-endothelial-cells
#8
Gi Dae Kim
Kaempferol has been shown to inhibit vascular formation in endothelial cells. However, the underlying mechanisms are not fully understood. In the present study, we evaluated whether kaempferol exerts antiangiogenic effects by targeting extracellular signal-regulated kinase (ERK)/p38 mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K)/Akt/mechanistic target of rapamycin (mTOR) signaling pathways in endothelial cells. Endothelial cells were treated with various concentrations of kaempferol for 24 h...
December 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29329991/dynamic-contrast-enhanced-eus-for-quantification-of-tumor-perfusion-in-colonic-cancer-a-prospective-cohort-study
#9
Marie Louise Malmstrøm, Adrian Săftoiu, Lene B Riis, Hazem Hassan, Tobias W Klausen, Mikkel S Rahbek, Ismail Gögenur, Peter Vilmann
BACKGROUND AND AIMS: Dynamic contrast enhanced endoscopic ultrasound (CE-EUS) for quantification of perfusion in colonic tumors has not previously been reported in the literature. The aim of the study was to investigate correlations between perfusion parameters and vessel density assessed by immunohistochemical staining with antibodies toward CD31 and CD105. METHODS: We conducted a prospective clinical study. In total, 28 patients with left-sided colonic adenocarcinoma, underwent CE-EUS and left-sided hemicolectomy within 2 weeks...
January 9, 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29327174/localized-targeted-antiangiogenic-drug-delivery-for-glioblastoma
#10
REVIEW
Gregory D Arnone, Abhiraj D Bhimani, Tania Aguilar, Ankit I Mehta
Systemic delivery of antiangiogenic agents has been ineffective in improving the overall survival of patients with both primary and recurrent glioblastoma, in part due to dose-limiting toxicities. With the development of new and efficient localized delivery methods and vehicles, an otherwise lethal dose of antiangiogenic chemotherapy can be used to treat tumors while minimizing systemic side effects. Current in-vitro and in-vivo animal studies have shown promising results that encourage the pursuit towards human clinical trials for localized antiangiogenic treatment in the near future...
January 11, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29320955/therapeutic-roles-of-statins-in-gynecology-and-obstetrics-the-current-evidence
#11
Burak Zeybek, Maged Costantine, Gokhan S Kilic, Mostafa A Borahay
INTRODUCTION: Statins are a class of drugs, which act by inhibiting the rate-limiting enzyme of cholesterol biosynthesis (3-hydroxy-3-methyl-glutaryl-CoA reductase). The inhibition of mevalonate synthesis leads to subsequent inhibition of downstream products of this pathway, which explains the pleiotropic effects of these agents in addition to their well-known lipid-lowering effects. Accumulating evidence suggests that statins might be beneficial in various obstetric and gynecologic conditions...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29320562/m1-like-macrophages-change-tumor-blood-vessels-and-microenvironment-in-murine-melanoma
#12
Magdalena Jarosz-Biej, Natalia Kamińska, Sybilla Matuszczak, Tomasz Cichoń, Jolanta Pamuła-Piłat, Justyna Czapla, Ryszard Smolarczyk, Daria Skwarzyńska, Klaudia Kulik, Stanisław Szala
Tumor-associated macrophages (TAMs) play a significant role in at least two key processes underlying neoplastic progression: angiogenesis and immune surveillance. TAMs phenotypic changes play important role in tumor vessel abnormalization/ normalization. M2-like TAMs stimulate immunosuppression and formation of defective tumor blood vessels leading to tumor progression. In contrast M1-like TAMs trigger immune response and normalize irregular tumor vascular network which should sensitize cancer cells to chemo- and radiotherapy and lead to tumor growth regression...
2018: PloS One
https://www.readbyqxmd.com/read/29318022/clinical-trial-experience-with-ca4p-anticancer-therapy-focus-on-efficacy-cardiovascular-adverse-events-and-hypertension-management
#13
REVIEW
Rachel Grisham, Bonnie Ky, Krishnansu S Tewari, David J Chaplin, Joan Walker
Combretastatin A4-phosphate (CA4P) is a vascular-disrupting agent (VDA) in clinical development for the treatment of ovarian and other cancers. In contrast to antiangiogenic agents, such as bevacizumab, which suppress the development of new tumor vasculature, VDAs target established tumor vasculature. These differing but complementary mechanisms of action are currently being explored in clinical trials combining CA4P and bevacizumab. Clinical experience to date has highlighted an important need to better understand the cardiovascular adverse events of CA4P, both alone and in combination with antiangiogenic agents, which can also be associated with cardiovascular adverse events...
2018: Gynecologic Oncology Research and Practice
https://www.readbyqxmd.com/read/29317191/randomized-double-blind-phase-ib-iii-study-of-erlotinib-with-ramucirumab-or-placebo-in-previously-untreated-egfr-mutant-metastatic-non-small-cell-lung-cancer-relay-phase-ib-results
#14
Martin Reck, Edward B Garon, Luis Paz-Ares, Santiago Ponce, Jesus Corral Jaime, Oscar Juan, Ernest Nadal, Katsuyuki Kiura, Ryan C Widau, Shuang He, Rita Dalal, Pablo Lee, Kazuhiko Nakagawa
BACKGROUND: Despite the likelihood of an initial response to an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI), EGFR-mutant non-small-cell lung cancer (NSCLC) patients develop disease progression. Antiangiogenic agents in combination with an EGFR TKI might provide additional benefit in patients with EGFR-mutant NSCLC. In this article we report safety, exposure, and progression-free survival (PFS) results for part A (phase Ib) of RELAY, a randomized, double-blind, phase Ib/III study investigating safety and efficacy of erlotinib (EGFR TKI) with ramucirumab (anti-vascular endothelial growth factor receptor-2 antibody) or placebo in first-line EGFR-mutant stage IV NSCLC...
November 21, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/29314771/evidence-for-novel-action-at-the-cell-binding-site-of-human-angiogenin-revealed-by-heteronuclear-nmr-spectroscopy-in-silico-and-in-vivo-studies
#15
Demetra Sm Chatzileontiadou, Aikaterini C Tsika, Zoi Diamantopoulou, Jean Delbé, Josette Badet, José Courty, Vassiliki T Skamnaki, Vanessa Parmenopoulou, Dimitri Komiotis, Joseph M Hayes, Georgios A Spyroulias, Demetres D Leonidas
A member of Ribonuclease A superfamily, human Angiogenin (hAng) is a potent angiogenic factor. Heteronuclear NMR spectroscopy combined with induced-fit docking revealed a dual binding mode for the most antiangiogenic compound of a series of ribofuranosyl pyrimidine nucleosides that strongly inhibit hAng's angiogenic activity in vivo. While modelling suggests the potential of a simultaneous binding of the inhibitors at the active and cell binding sites, NMR indicates greater affinity for the cell binding site than for the active site...
January 4, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29307714/the-novel-brassinosteroid-analog-br4848-inhibits-angiogenesis-in-human-endothelial-cells-and-induces-apoptosis-in-human-cancer-cells-in-vitro
#16
Lucie Rárová, David Sedlák, Jana Oklestkova, Jana Steigerová, Johanna Liebl, Stefan Zahler, Petr Bartůněk, Zdeněk Kolář, Ladislav Kohout, Miroslav Kvasnica, Miroslav Strnad
We report the synthesis and detailed biological study of the synthetic brassinosteroid analog 2α,3α-dihydroxy-6-oxo-5α-androstan-17β-yl N-(tert-butoxycarbonyl)-D,L-valinate (BR4848). The panel of cancer cell lines was used for characterization of its antiproliferative activity, yet had no adverse effects in normal human fibroblasts. In HeLa cells, BR4848-induced apoptosis was accompanied by increase of apoptotic subG1 cells, PARP-1 and caspase-7 fragmentation, downregulation of Bcl-2 and Mcl-1, an increase in caspase activity and G2/M phase cell cycle arrest...
January 4, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29307359/overview-of-metastatic-disease-of-the-central-nervous-system
#17
Craig Nolan, Lisa M Deangelis
In 2016, the American Society of Clinical Oncology reported that 1.7 million Americans were diagnosed with cancer; this number will rise to 2.3 million in the United States and 22 million worldwide in 2030. This rising need is being met by an explosion of new cancer therapies, including: immune checkpoint inhibitors, T-cell therapies, tumor vaccines, antiangiogenic therapies, and various targeted therapies. This armamentarium of targeted therapies has led to better systemic control of disease and longer patient overall survival (OS)...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29302579/myricetin-inhibits-angiogenesis-by-inducing-apoptosis-and-suppressing-pi3k-akt-mtor-signaling-in-endothelial-cells
#18
Gi Dae Kim
Background: Myricetin has been shown to possess potential antiangiogenic effects in endothelial cells. However, the underlying mechanisms are not fully understood. Therefore, we evaluated its antiangiogenic effects in human umbilical vascular endothelial cells (HUVECs). Methods: HUVECs were cultured in endothelial cell growth medium-2 to induce proliferation and angiogenesis and treated with different doses of myricetin (0.25, 0.5, and 1 μM) for 24 hours. Cell proliferation was analyzed by the MTT and lactate dehydrogenase release assays; angiogenesis was determined by the tube formation assay...
December 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29299458/antiangiogenic-therapy-and-immune-checkpoint-blockade-go-hand-in-hand
#19
EDITORIAL
Luis Felipe Campesato, Taha Merghoub
No abstract text is available yet for this article.
December 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29297985/outcomes-of-bevacizumab-combined-with-chemotherapy-in-lung-adenocarcinoma-induced-malignant-pleural-effusion
#20
Hong Tao, Qiyi Meng, Mingzhi Li, Liang Shi, Junfang Tang, Zhe Liu
BACKGROUND: VEGF is critical in the pathogenesis of malignant pleural effusion (MPE). To understand the clinical benefits of antiangiogenic agents, the efficacy of chemotherapy containing bevacizmab was investigated in patients with lung adenocarcinoma-induced MPE. METHODS: The data of lung adenocarcinoma patients with MPE treated with bevacizumab plus chemotherapy on day 1, every three weeks, for ≤ 6 cycles was retrospectively collected. Patients who achieved a response or stable disease were administered bevacizumab as maintenance therapy until progression...
January 3, 2018: Thoracic Cancer
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