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Antiangiogenesis

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https://www.readbyqxmd.com/read/28430579/antiangiogenesis-and-gene-aberration-related-therapy-may-improve-overall-survival-in-patients-with-concurrent-kras-and-tp53-hotspot-mutant-cancer
#1
Zhijie Wang, Sarina Piha-Paul, Filip Janku, Vivek Subbiah, Naiyi Shi, Jing Gong, Chetna Wathoo, Kenna Shaw, Kenneth Hess, Russell Broaddus, Aung Naing, David Hong, Apostolia M Tsimberidou, Daniel Karp, James Yao, Funda Meric-Bernstam, Siqing Fu
PURPOSE: Genetic alterations such as activating KRAS and/or inactivating TP53 are thought to be the most common drivers to tumorigenesis. Therefore, we assessed phase I cancer patients with KRAS+/TP53+ mutations. RESULTS: Approximately 8% of patients referred to phase I clinical trials harbored concurrent KRAS and TP53 mutations. Patients who received a phase I trial therapy (n = 57) had a median OS of 12 months, compared with 4.6 months in those who were not treated (n = 106; p = 0...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424759/antiangiogenesis-for-advanced-non-small-cell-lung-cancer-in-the-era-of-immunotherapy-and-personalized-medicine
#2
REVIEW
Samer Tabchi, Normand Blais
Over the past decade, patients with advanced non-small-cell lung cancer (NSCLC) have witnessed substantial advances in regards to therapeutic alternatives. Among newly developed agents, angiogenesis inhibitors were extensively tested in different settings and have produced some favorable outcomes despite several shortcomings. Bevacizumab is the most examined agent in this context and has demonstrated significant survival benefits when combined with standard chemotherapy in eligible patients. Preliminary results on the addition of bevacizumab to erlotinib in patients with EGFR-mutated NSCLC seem promising...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28405526/anti-vegfr2-interferon-%C3%AE-2-regulates-the-tumor-microenvironment-and-exhibits-potent-antitumor-efficacy-against-colorectal-cancer
#3
Zhaoting Li, Yijia Zhu, Chenchen Li, Ryan Trinh, Xueyan Ren, Fumou Sun, Youfu Wang, Pengzhao Shang, Tong Wang, Min Wang, Sherie L Morrison, Juan Zhang
Interferon-α (IFNα) has multiple antitumor effects including direct antitumor toxicity and the ability to potently stimulate both innate and adaptive immunity. However, its clinical applications in the treatment of malignancies have been limited because of short half-life and serious adverse reactions when attempting to deliver therapeutically effective doses. To address these issues, we fused IFNα2a to the anti-vascular endothelial growth factor and receptor 2 (VEGFR2) antibody JZA00 with the goal of targeting it to the tumor microenvironment where it can stimulate the antitumor immune response...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28383671/drug-induced-liver-injury-in-oncology
#4
A D Ricart
Liver regeneration has been an adaptation of vertebrates through evolutionary events to protect them from environmental pressures (e.g. ingested toxins). Elevated serum levels of aminotransferases generally indicate liver injury, but do not necessarily reflect or predict hepatotoxicity. Drug-induced liver injury (DILI) is first classified as predictable or unpredictable (idiosyncratic). Predictable DILI is dose-related and occurs shortly after exposure (e.g. high dose alkylating agents). Unpredictable reactions result from a succession of unlikely events, a "multihit" process (e...
April 5, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28376864/antiangiogenic-effects-of-oridonin
#5
Lili Tian, Kangjie Xie, Donglai Sheng, Xiaoqing Wan, Guofu Zhu
BACKGROUND: Oridonin, the major terpene found in Rabdosia rubescens (Henmsl.) Hara, is widely used as a dietary supplement and therapeutic drug. Oridonin has been proven to possess good anti-tumour activity, but little is known about its effect on angiogenesis. The aim of this study was to investigate the antiangiogenic effects of oridonin in vivo and in vitro and prove that oridonin anti-tumour activity is based on suppressing angiogenesis. METHODS: In vitro, the antiangiogenesis effect was studied by proliferation, apoptosis, migration, invasion, and tube formation experiments on human umbilical vascular endothelial cells (HUVECs)...
April 4, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28346248/68ga-psma-pet-ct-in-osteosarcoma-in-fibrous-dysplasia
#6
Arun Sasikumar, Ajith Joy, M R A Pillai, Tony M Alex, Geetha Narayanan
Fibrous dysplasia (FD) is a benign bone lesion with a rare but potential for malignant transformation. Neither Tc-MDP nor F-FDG PET/CT can differentiate between FD and areas of malignant transformation in FD. We described a case of osteosarcoma developing in FD with selective uptake of tracer in malignant transformation areas demonstrated on a Ga-PSMA PET/CT scan. Our case highlights the ability of Ga-PSMA PET/CT to map tumor neoangiogenesis in osteosarcoma arising in FD, which can have potential implications in prognostication, possibility of antiangiogenesis-based therapeutic options, and in response assessment following chemotherapy...
March 24, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28338787/total-and-fetal-circulating-cell-free-dna-angiogenic-and-antiangiogenic-factors-in-preeclampsia-and-hellp-syndrome
#7
Rocío Muñoz-Hernández, Pablo Medrano-Campillo, Maria L Miranda, Hada C Macher, Jose Manuel Praena-Fernández, Antonio J Vallejo-Vaz, María J Dominguez-Simeon, Rafael Moreno-Luna, Pablo Stiefel
BACKGROUND: Preeclampsia (PE) is a hypertensive disorder of pregnancy characterized by hypertension and proteinuria. The HELLP syndrome is the most severe form of PE. The aim of the present study was to determine different potential biomarkers that may help us perform an early diagnosis of the disease, assess on the severity of the disease, and/or predict maternal or fetal adverse outcomes. METHODS: We measured serum levels of total and fetal circulating cell-free DNA (cfDNA), soluble endoglin, soluble form of vascular endothelial growth factor receptor, and placental growth factor in a healthy control group of pregnant women (n = 26), patients with mild (n = 37) and severe PE (n = 25), and patients with HELLP syndrome (n = 16)...
February 25, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28296822/the-different-effects-of-vegfa121-and-vegfa165-on-regulating-angiogenesis-depend-on-phosphorylation-sites-of-vegfr2
#8
Wang Shiying, Sun Boyun, Yuan Jianye, Zhang Wanjun, Tao Ping, Lin Jiang, Hu Hongyi
The effects of VEGFA isoforms on the vascular permeability and structure are still unclear. In this study, we found that VEGFA121 and VEGFA165, 2 isoforms of VEGFA, exerted the opposing effects of antiangiogenesis and proangiogenesis on regulating vascular endothelia cells proliferation and tube formation. The 2 isoforms affected the protein expression of Ras-related protein 1-GTPase-activating protein 1 (Rap1GAP) and thrombospondin 1, 2 important signal molecules of Rap1GAP/thrombospondin 1 signal pathway in primary human umbilical vein endothelial cells by regulating 2 different phosphorylating sites of VEGFR2, Tyr(1175) and Tyr(1214)...
April 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28280323/enhanced-anticancer-efficacy-of-paclitaxel-through-multistage-tumor-targeting-liposomes-modified-with-rgd-and-kla-peptides
#9
Jiawei Sun, Lei Jiang, Yi Lin, Ethan Michael Gerhard, Xuehua Jiang, Li Li, Jian Yang, Zhongwei Gu
Mitochondria serve as both "energy factories" and "suicide weapon stores" of cells. Targeted delivery of cytotoxic drugs to the mitochondria of tumor cells and tumor vascular cells is a promising strategy to improve the efficacy of chemotherapy. Here, multistage tumor-targeting liposomes containing two targeted peptide-modified lipids, cRGD-PEG2000-DSPE and KLA-PEG2000-DSPE, were developed for encapsulation of the anticancer drug paclitaxel (PTX, RGD-KLA/PTX-Lips). Compared with Taxol (free PTX), RGD/PTX-Lips and KLA/PTX-Lips, the half-maximal inhibitory concentration (IC50) value of RGD-KLA/PTX-Lips in vitro was 1...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28274890/metronomic-chemotherapy-in-metastatic-colorectal-cancer
#10
In Sook Woo, Yun Hwa Jung
Overall survival and quality of life of patients with metastatic colorectal cancer (mCRC) have improved due to the development of standard systemic treatment. However, many patients are still suffering from the eventual progression of cancer, treatment-related toxicities, and the economic burden of new drugs. Salvage or maintenance therapy, which consistently controls or stabilizes tumor progression without debilitating quality of life, is required. Recently, metronomic capecitabine maintenance therapy after disease control using conventional chemotherapy with maximal tolerated doses has demonstrated beneficial results in a phase III trial...
March 6, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28242821/preventive-effects-of-nucleoprotein-supplementation-combined-with-intermittent-loading-on-capillary-regression-induced-by-hindlimb-unloading-in-rat-soleus-muscle
#11
Yusuke Hirayama, Ryosuke Nakanishi, Noriaki Maeshige, Hidemi Fujino
Physical inactivity leads to muscle atrophy and capillary regression in the skeletal muscle. Intermittent loading during hindlimb unloading attenuates the muscle atrophy, meanwhile the capillary regression in the skeletal muscle is not suppressed. Nucleoprotein has antioxidant capacity and may prevent capillary regression. Therefore, we assessed the combined effects of intermittent loading with nucleoprotein supplementation on capillary regression induced by hindlimb unloading. Five groups of rats were assigned: control (CON), 7 days hindlimb unloading (HU), HU plus nucleoprotein supplementation (HU + NP), intermittent loading during HU (HU + IL), and intermittent loading combined with nucleoprotein supplementation during HU (HU + IL + NP)...
February 2017: Physiological Reports
https://www.readbyqxmd.com/read/28203191/airbag-associated-severe-blunt-eye-injury-causes-choroidal-rupture-and-retinal-hemorrhage-a-case-report
#12
Shih Hao Wang, Chen Chee Lim, Yu Ti Teng
A case of choroidal rupture caused by airbag-associated blunt eye trauma and complicated with massive subretinal hemorrhage and vitreous hemorrhage that was successfully treated with intravitreal injection of expansile gas and bevacizumab is presented. A 53-year-old man suffered from loss of vision in his right eye due to blunt eye trauma by a safety airbag after a traffic accident. On initial examination, the patient had no light perception in his right eye. Dilated ophthalmoscopy revealed massive subretinal hemorrhage with macular invasion and faint vitreous hemorrhage...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28202353/the-potential-clinical-promise-of-multimodality-metronomic-chemotherapy-revealed-by-preclinical-studies-of-metastatic-disease
#13
Robert S Kerbel, Yuval Shaked
We present a rationale for further clinical development and assessment of metronomic chemotherapy on the basis of unexpected results obtained in translational mouse models of cancer involving treatment of advanced metastatic disease. Historically, mouse cancer therapy models have been dominated by treating established primary tumors or early stage low volume microscopic disease. Treatment of primary tumors is also almost always the case when using genetically engineered mouse models (GEMMS) of cancer or patient-derived xenografts (PDXs)...
February 12, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28194552/a-novel-synthetic-small-molecule-yf-452-inhibits-tumor-growth-through-antiangiogenesis-by-suppressing-vegf-receptor-2-signaling
#14
Yongrui Liu, Yuan He, Feifei Yang, Xiaonan Cong, Jinhua Wang, Shihong Peng, Dan Gao, Weifang Wang, Liping Lan, Xuexiang Ying, Mingyao Liu, Yihua Chen, Zhengfang Yi
Tumor angiogenesis is characterized by abnormal vessel morphology, endowing tumor with highly hypoxia and unresponsive toward treatment. To date, mounting angiogenic factors have been discovered as therapeutic targets in antiangiogenic drug development. Among them, vascular endothelial growth factor receptor 2 (VEGFR2) inhibitors exerts potent antiangiogenic activity in tumor therapy. Therefore, it may provide a valid strategy for cancer treatment through targeting the tumor angiogenesis via VEGFR2 pathway...
February 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28193190/enhanced-expression-of-vastatin-inhibits-angiogenesis-and-prolongs-survival-in-murine-orthotopic-glioblastoma-model
#15
Yi Li, Jun Li, Yat Ming Woo, Zan Shen, Hong Yao, Yijun Cai, Marie Chia-Mi Lin, Wai Sang Poon
BACKGROUND: Antiangiogenic therapies are considered promising for the treatment of glioblastoma (GB). The non-collagenous C-terminal globular NC1 domain of type VIII collagen a1 chain, Vastatin, is an endogenous antiangiogenic polypeptide. Sustained enhanced expression of Vastatin was shown to inhibit tumour growth and metastasis in murine hepatocellular carcinoma models. In this study, we further explored the efficacy of Vastatin in the treatment of GB xenografts. METHOD: Treatment of Vastatin was carried out using a nanopolymer gene vector PEI600-CyD-Folate (H1)...
February 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28176940/targeted-multidrug-delivery-system-to-overcome-chemoresistance-in-breast-cancer
#16
Yuan Tang, Fariborz Soroush, Zhaohui Tong, Mohammad F Kiani, Bin Wang
Chemotherapy has been widely used in breast cancer patients to reduce tumor size. However, most anticancer agents cannot differentiate between cancerous and normal cells, resulting in severe systemic toxicity. In addition, acquired drug resistance during the chemotherapy treatment further decreases treatment efficacy. With the proper treatment strategy, nanodrug carriers, such as liposomes/immunoliposomes, may be able to reduce undesired side effects of chemotherapy, to overcome the acquired multidrug resistance, and to further improve the treatment efficacy...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28176910/apatinib-as-post-second-line-therapy-in-egfr-wild-type-and-alk-negative-advanced-lung-adenocarcinoma
#17
Shen-Cun Fang, Hai-Tao Zhang, Ying-Ming Zhang, Wei-Ping Xie
In the absence of a driver mutation, chemotherapy is the standard treatment option as first- and second-line therapy for advanced non-small-cell lung cancer (NSCLC). Though a large number of patients are suitable for post second-line therapies, the quality and quantity of the available drugs in this setting is poor. Apatinib, a small molecule vascular endothelial growth factor receptor-2 (VEGFR-2) tyrosine kinase inhibitor, is a first-generation oral antiangiogenesis drug approved in the People's Republic of China for use as a subsequent line of treatment for advanced gastric cancer...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28161597/angiogenesis-related-genes-and-thalidomide-teratogenesis-in-humans-an-approach-on-genetic-variation-and-review-of-past-in-vitro-studies
#18
Thayne Woycinck Kowalski, Lucas Rosa Fraga, Luciana Tovo-Rodrigues, Maria Teresa Vieira Sanseverino, Mara Helena Hutz, Lavínia Schuler-Faccini, Fernanda Sales Luiz Vianna
Thalidomide embryopathy (TE) has affected more than 10,000 babies worldwide. The hypothesis of antiangiogenesis as the teratogenic mechanism of thalidomide has been investigated in several experimental models; but, in humans, it has only been accessed by in vitro studies. Here, we hypothesized the effect of thalidomide upon angiogenesis-related molecules or proteins, previously identified in human embryonic cells, through the in silico STRING-tool. We also investigated ten polymorphisms in angiogenesis-related genes in 38 Brazilian TE individuals and 136 non-affected Brazilians...
February 1, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28122301/effects-of-js-k-a-novel-anti-cancer-nitric-oxide-prodrug-on-gene-expression-in-human-hepatoma-hep3b-cells
#19
Ray Dong, Xueqian Wang, Huan Wang, Zhengyun Liu, Jie Liu, Joseph E Saavedra
JS-K is a novel anticancer nitric oxide (NO) prodrug effective against a variety of cancer cells, including the inhibition of AM-1 hepatoma cell growth in rats. To further evaluate anticancer effects of JS-K, human hepatoma Hep3B cells were treated with JS-K and the compound control JS-43-126 at various concentrations (0-100μM) for 24h, and cytotoxicity was determined by the MTS assay. The compound control JS-43-126 was not cytotoxic to Hep3B cells at concentrations up to 100μM, while the LC50 for JS-K was about 10μM...
April 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28115846/preparation-of-arginine-glycine-aspartic-acid-modified-biopolymeric-nanoparticles-containing-epigalloccatechin-3-gallate-for-targeting-vascular-endothelial-cells-to-inhibit-corneal-neovascularization
#20
Che-Yi Chang, Ming-Chen Wang, Takuya Miyagawa, Zhi-Yu Chen, Feng-Huei Lin, Ko-Hua Chen, Guei-Sheung Liu, Ching-Li Tseng
Neovascularization (NV) of the cornea can disrupt visual function, causing ocular diseases, including blindness. Therefore, treatment of corneal NV has a high public health impact. Epigalloccatechin-3-gallate (EGCG), presenting antiangiogenesis effects, was chosen as an inhibitor to treat human vascular endothelial cells for corneal NV treatment. An arginine-glycine-aspartic acid (RGD) peptide-hyaluronic acid (HA)-conjugated complex coating on the gelatin/EGCG self-assembly nanoparticles (GEH-RGD NPs) was synthesized for targeting the αvβ3 integrin on human umbilical vein endothelial cells (HUVECs) in this study, and a corneal NV mouse model was used to evaluate the therapeutic effect of this nanomedicine used as eyedrops...
2017: International Journal of Nanomedicine
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