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https://www.readbyqxmd.com/read/28636984/whether-low-dose-metronomic-oral-cyclophosphamide-improves-the-response-to-docetaxel-in-first-line-treatment-of-non-triple-negative-metastatic-breast-cancer
#1
Jian Zhang, Leiping Wang, Zhonghua Wang, Biyun Wang, Jun Cao, Fangfang Lv, Sheng Zhang, Zhimin Shao, Xichun Hu
Oral metronomic chemotherapy may target tumor cells indirectly via antiangiogenic activity, restoration of anticancer immune response, or induction of tumor dormancy. We initiated the single-center, randomized, open-label, phase II study to determine whether the addition of metronomic cyclophosphamide to docetaxel (T) (w/o trastuzumab) improves overall response rate (ORR) as first-line treatment among patients with non-triple-negative metastatic breast cancer (MBC). Eligible patients with previously untreated non-triple-negative MBC were randomly assigned (1:1) to receive 3-weekly cycles of Metro-TC (T 75mg/m2, d1 plus oral cyclophosphamide 50 mg daily) or T alone...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28627371/structure-activity-relationship-study-of-tetrapeptide-inhibitors-of-the-vascular-endothelial-growth-factor-a-binding-to-neuropilin-1
#2
Dagmara Tymecka, Piotr F J Lipiński, Bartłomiej Fedorczyk, Anna Puszko, Beata Wileńska, Gerard Y Perret, Aleksandra Misicka
Neuropilin-1 is considered as one of the key receptors responsible for signaling pathways involved in pathological angiogenesis necessary for tumor progression, therefore targeting of VEGF165 binding to NRP-1 could be a relevant strategy for antiangiogenic treatment. It was shown before that the VEGF165/NRP-1 interaction can be inhibited by short tetrapeptides with K/RXXR sequence. Here, we present a structure-activity relationship study of the systematic optimization of amino acid residues in positions 1-3 in the above tetrapeptides...
June 13, 2017: Peptides
https://www.readbyqxmd.com/read/28624441/hsp90-inhibitor-geldanamycin-attenuates-the-cytotoxicity-of-sunitinib-in-cardiomyocytes-via-inhibition-of-the-autophagy-pathway
#3
Takayuki Kimura, Mai Uesugi, Kazuma Takase, Norimasa Miyamoto, Kohei Sawada
Sunitinib malate (sunitinib) is an orally available, multitargeted tyrosine kinase inhibitor with antitumor and antiangiogenic activities. Although sunitinib is effective for the treatment of patients with gastrointestinal stromal tumor, advanced renal cell carcinoma, or pancreatic neuroendocrine tumor, adverse cardiac events associated with sunitinib administration have been reported. Here, we examined the effect of geldanamycin, an inhibitor of heat shock protein (Hsp) 90, on sunitinib-induced cytotoxicity in cardiomyocytes...
June 14, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28623267/a-new-paradigm-for-antiangiogenic-therapy-through-controlled-release-of-bevacizumab-from-plga-nanoparticles
#4
Flávia Sousa, Andrea Cruz, Pedro Fonte, Inês Mendes Pinto, Maria Teresa Neves-Petersen, Bruno Sarmento
Monoclonal antibodies have deserved a remarkable interest for more than 40 years as a vital tool for the treatment of various diseases. Still, there is a raising interest to develop advanced monoclonal antibody delivery systems able to tailor pharmacokinetics. Bevacizumab is a humanized immunoglobulin IgG1 used in antiangiogenic therapies due to its capacity to inhibit the interaction between vascular endothelial growth factor and its receptor. However, bevacizumab-based antiangiogenic therapy is not always effective due to poor treatment compliance associated to multiples administrations and drug resistance...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28619630/hilar-fat-infiltration-a-new-prognostic-factor-in-metastatic-clear-cell-renal-cell-carcinoma-with-first-line-sunitinib-treatment
#5
Solène-Florence Kammerer-Jacquet, Angelique Brunot, Karim Bensalah, Boris Campillo-Gimenez, Mathilde Lefort, Sahar Bayat, Alain Ravaud, Frantz Dupuis, Mokrane Yacoub, Gregory Verhoest, Benoit Peyronnet, Romain Mathieu, Alexandra Lespagnol, Jean Mosser, Julien Edeline, Brigitte Laguerre, Jean-Christophe Bernhard, Nathalie Rioux-Leclercq
INTRODUCTION: The selection of patients with metastatic clear cell renal cell carcinoma (ccRCC) who may benefit from targeted tyrosine kinase inhibitors has been a challenge, even more so now with the advent of new therapies. Hilar fat infiltration (HFI) is a validated prognostic factor in nonmetastatic ccRCC (TNM 2009 staging system) but has never been studied in metastatic patients. We aimed to assess its phenotype and prognostic effect in patients with metastatic ccRCC treated with first-line sunitinib...
June 12, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28615707/-99m-tc-labeled-bevacizumab-for-detecting-atherosclerotic-plaque-linked-to-plaque-neovascularization-and-monitoring-antiangiogenic-effects-of-atorvastatin-treatment-in-apoe-mice
#6
Hui Tan, Jun Zhou, Xiangdong Yang, Mieradilijiang Abudupataer, Xiao Li, Yan Hu, Jie Xiao, Hongcheng Shi, Dengfeng Cheng
Atherosclerotic neovascularization plays a significant role in plaque instability as it provides additional lipids and inflammatory mediators to lesions, and resulting in intraplaque hemorrhage. Vascular endothelial growth factor-A (VEGF-A) is considered the predominant proangiogenic factor in angiogenesis. Bevacizumab, a humanized monoclonal antibody, specifically binds to all VEGF-A isoforms with high affinity. Therefore, in this study, we designed (99m)Tc-MAG3-bevacizumab as a probe, and then investigated its usefulness as a new imaging agent for the detection of plaque neovessels, while also assessing the therapeutic effect of atorvastatin treatment...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28614769/cell-specific-cytotoxic-effect-of-pyrazole-derivatives-on-breast-cancer-cell-lines-mcf7-and-mda-mb-231
#7
T P Lehmann, J Kujawski, J Kruk, K Czaja, M K Bernard, P P Jagodzinski
Pyrazoles and their derivatives belong to a class of compounds that demonstrate a great potential in design of anticancer, antiangiogenic, and antimetastatic drugs. Our earlier studies showed that pyrazole derivatives TOSPYRQUIN and TOSIND diminished viability of colorectal adenocarcinoma cells HT-29. Here we demonstrated for the first time in human mammary gland adenocarcinoma cell lines MCF7 and MDA-MB-231 cells the cytotoxic effects of four pyrazole derivatives: TOSIND, PYRIND, METPYRIND, and DIPYR. Three pyrazoles: PYRIND, METPYRIND, and one novel unpublished derivative DIPYR were tested for the first time in living cells...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28609171/myocardial-performance-index-in-hypertensive-disorders-of-pregnancy-the-relationship-between-blood-pressures-and-angiogenic-factors
#8
Hadi Ramadan, Sarosh Rana, Ariel Mueller, Surichhya Bajracharya, Dongsheng Zhang, Saira Salahuddin, Rabab Nasim, Joana Lopes Perdigao, Mohammed Minhaj, Avery Tung, Zolt Arany, Sajid Shahul
OBJECTIVE: To study the association between cardiac function measured by myocardial performance index (MPI), blood pressures and angiogenic factors measured at the time of echocardiography in patients with and without hypertensive disorders of pregnancy (HDP). METHODS: We prospectively studied 189 pregnant women and evaluated whether changes in cardiac function observed on echocardiography were correlated with higher blood pressures and whether higher blood pressures were associated with antiangiogenic proteins (soluble fms-like tyrosine kinase, sFlt1; soluble endoglin, sEng)...
May 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/28609170/serum-levels-of-platelet-endothelial-cell-adhesion-molecule-1-pecam-1-and-soluble-vascular-endothelial-growth-factor-receptor-svegfr-1-and-2-in-hiv-associated-preeclampsia
#9
Semone Thakoordeen, Jagidesa Moodley, Thajasvarie Naicker
OBJECTIVE: The angiogenic-antiangiogenic imbalance evident in preeclampsia (PE) may be used as a predictive tool to identify women likely to develop the clinical features in early pregnancy. METHOD: This retrospective study examined normotensive pregnant (n = 38) and preeclamptic (n = 38) HIV-infected and uninfected women to quantify sVEGFR-1 and -2 and PECAM-1 levels. RESULTS: In contrast to PECAM-1, sVEGFR-1 and -2 differed according to pregnancy type (p = 0...
May 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/28607581/pembrolizumab-in-cervical-cancer-latest-evidence-and-clinical-usefulness
#10
REVIEW
Edith Borcoman, Christophe Le Tourneau
Cervical cancer is the fourth most common cause of cancer-related deaths in women worldwide. With the development of detection of precancerous lesions and preventive human papillomavirus (HPV) vaccination program, a survival improvement has been observed in these patients in developed countries, although disparities in accessibility to treatments exist across countries. While early-stage cervical cancer can be curable with surgery, prognosis of patients who recur remains poor, with limited treatment options...
June 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28607126/mechanisms-and-treatment-of-halogen-inhalation-induced-pulmonary-and-systemic-injuries-in-pregnant-mice
#11
James A Lambert, Matthew A Carlisle, Adam Lam, Saurabh Aggarwal, Stephen Doran, Changchun Ren, Wayne E Bradley, Louis Dell'Italia, Namasivayam Ambalavanan, David A Ford, Rakesh P Patel, Tamas Jilling, Sadis Matalon
Inhalation of oxidant gases has been implicated in adverse outcomes in pregnancy, but animal models to address mechanisms and studies to identify potential pregnancy-specific therapies are lacking. Herein, we show that inhalation of bromine at 600 parts per million for 30 minutes by pregnant mice on the 15th day of embryonic development results in significantly lower survival after 96 hours than an identical level of exposure in nonpregnant mice. On the 19th embryonic day, bromine-exposed pregnant mice have increased systemic blood pressure, abnormal placental development, severe fetal growth restriction, systemic inflammation, increased levels of circulating antiangiogenic short fms-like tyrosine kinase-1, and evidence of pulmonary and cardiac injury...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28607065/maintenance-of-antiangiogenic-and-antitumor-effects-by-orally-active-low-dose-capecitabine-for-long-term-cancer-therapy
#12
Yin Zhang, Meili Sun, Guichun Huang, Linlin Yin, Qinghua Lai, Yunlong Yang, Xiaoming Xing, Guohua Yu, Yuping Sun, Xinsheng Wang, Guohui Nie, Yizhi Liu, Yihai Cao
Long-term uninterrupted therapy is essential for maximizing clinical benefits of antiangiogenic drugs (AADs) in cancer patients. Unfortunately, nearly all clinically available AADs are delivered to cancer patients using disrupted regimens. We aim to develop lifetime, nontoxic, effective, orally active, and low-cost antiangiogenic and antitumor drugs for treatment of cancer patients. Here we report our findings of long-term maintenance therapy with orally active, nontoxic, low cost antiangiogenic chemotherapeutics for effective cancer treatment...
June 12, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28606060/antiangiogenic-agents-targeting-different-angiogenic-pathways-have-opposite-effects-on-tumor-hypoxia-in-r-18-human-melanoma-xenografts
#13
Jon-Vidar Gaustad, Trude G Simonsen, Lise Mari K Andersen, Einar K Rofstad
BACKGROUND: Studies comparing the effect of antiangiogenic agents targeting different angiogenic pathways are sparse. The purpose of this study was to compare the effect of properdistatin and sunitinib treatment in a preclinical model of malignant melanoma. Properdistatin is a small peptide derived from the thrombospondin-1 domain of the plasma protein properdin, and sunitinib is a tyrosine kinase inhibitor targeting several receptors including the vascular endothelial growth factor receptors...
June 12, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28602715/microstructure-dependent-binding-of-pigment-epithelium-derived-factor-pedf-to-type-i-collagen-fibrils
#14
Meagan Cauble, Phillip Yang, Ulrich Baumann, Jan M Gebauer, Bradford G Orr, Le T Duong, Mark M Banaszak Holl
Pigment epithelium-derived factor (PEDF) is a multifunctional extracellular protein. In addition to its known antiangiogenic and neurotrophic roles in collagen rich tissues, PEDF is thought to be involved in collagen fibril assembly due to its sequence specific binding to the collagen fibril and high expression in regions of active bone formation. In order to image the presence of the protein on the fibrils, PEDF was recombinantly made with a strep tag (strep-PEDF) and then gold nanoparticles conjugated to streptavidin (AuNP) were used as a secondary tag...
June 5, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28601470/tissue-and-serum-mrna-profile-of-mmps-2-9-as-a-potential-novel-biomarker-for-the-most-individual-approach-in-infantile-hemangiomas-and-cancer-disease
#15
Katarzyna Taran, Aneta Wnęk, Józef Kobos, Ewa Andrzejewska, Przemysław Przewratil
Propranolol is a widely-known beta-blocker approved for treating infantile hemangiomas (IH). The mechanisms behind the spectacular IH involution after propranolol treatment remain unclear. Recently, there is strong evidence of overexpression of numerous angiogenic factors in IH tissues, and it is reported that propranolol influences their pathways. However, a number of MMPs studies is highly limited. Here, for the first time, we propose a comprehensive approach by analyzing the expression levels of metalloproteinases-2/9 (MMPs-2/9) and tissue metalloproteinase inhibitor-2 (TIMP-2) in vivo on both, molecular and immunohistochemical levels, and in both, IH tissues and in the serum of IH patients, and relates the obtained results to the tumor's biology and systemic propranolol treatment...
June 3, 2017: Immunobiology
https://www.readbyqxmd.com/read/28599387/antioxidant-and-antiproliferative-potentials-of-methanol-extract-of-xylopia-aethiopica-dunal-a-rich-in-pc-3-and-lncap-cells
#16
Oluwatosin Adekunle Adaramoye, Bettina Erguen, Bianca Nitzsche, Michael Höpfner, Klaus Jung, Anja Rabien
BACKGROUND: Our previous studies showed that fruit methanol extract from Xylopia aethiopica (MEXA) exhibited antiproliferative activity in human cervical cancer cells via the induction of apoptosis. The present study was designed to assess the antiproliferative, antiangiogenic and antioxidant effects of MEXA on prostate cancer (PCa) cells (PC-3 and LNCaP). METHODS: PC-3 and LNCaP cells were cultured and treated with MEXA (10, 50 and 100 μg/mL). The sodium 3'-[1-(phenylaminocarbonyl)-3,4-tetrazolium]-bis (4-methoxy-6-nitro) benzene sulfonic acid hydrate (XTT) and lactate dehydrogenase (LDH) assays were used to evaluate cell viability and cytotoxicity, respectively...
May 24, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28597689/circulating-endothelial-cells-and-their-subsets-novel-biomarkers-for-cancer
#17
Fangbin Zhou, Yaying Zhou, Jun Dong, Wenyong Tan
Angiogenesis contributes to the growth of solid tumors. Antiangiogenic agents are widely used in various cancers and considerable efforts have been made in the development of novel biomarkers that can predict the outcome of an anticancer treatment. Of those, circulating endothelial cells (CECs) and their subsets constitute a surrogate tool for monitoring disease activity. However, owing to the lack of standardization on the phenotypes and detection of CECs and their subsets, results have always been inconsistent and uninterpretable...
June 9, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28597396/trpv4-activation-contributes-functional-recovery-from-ischemic-stroke-via-angiogenesis-and-neurogenesis
#18
Chun-Kai Chen, Po-Yuan Hsu, Tzu-Ming Wang, Zhi-Feng Miao, Ruey-Tay Lin, Suh-Hang H Juo
The endothelial transient receptor potential cation channel subfamily V member 4 (TRPV4) plays a crucial role in vascular remodeling; however, TRPV4-mediated angiogenesis after ischemic neuronal death as a neurorestorative strategy has not yet been thoroughly examined. In this study, we first tested whether TRPV4 activation can improve functional recovery in rats subjected to transient brain ischemia. The possible mechanisms for TRPV4 activation-promoted functional recovery were explored. A TRPV4 agonist, 4α-phorbol 12,13-didecanoate (4α-PDD), was intravenously injected via the tail vein at 6 h and 1, 2, 3, 4 days after ischemic stroke...
June 9, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28594388/gene-therapy-for-pancreatic-cancer-specificity-issues-and-hopes
#19
REVIEW
Marie Rouanet, Marine Lebrin, Fabian Gross, Barbara Bournet, Pierre Cordelier, Louis Buscail
A recent death projection has placed pancreatic ductal adenocarcinoma as the second cause of death by cancer in 2030. The prognosis for pancreatic cancer is very poor and there is a great need for new treatments that can change this poor outcome. Developments of therapeutic innovations in combination with conventional chemotherapy are needed urgently. Among innovative treatments the gene therapy offers a promising avenue. The present review gives an overview of the general strategy of gene therapy as well as the limitations and stakes of the different experimental in vivo models, expression vectors (synthetic and viral), molecular tools (interference RNA, genome editing) and therapeutic genes (tumor suppressor genes, antiangiogenic and pro-apoptotic genes, suicide genes)...
June 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28592821/development-of-a-3d-angiogenesis-model-to-study-tumour-endothelial-cell-interactions-and-the-effects-of-anti-angiogenic-drugs
#20
Arno Amann, Marit Zwierzina, Stefan Koeck, Gabriele Gamerith, Elisabeth Pechriggl, Julia M Huber, Edith Lorenz, Jens M Kelm, Wolfgang Hilbe, Heinz Zwierzina, Johann Kern
The tumour microenvironment and tumour angiogenesis play a critical role in the development and therapy of many cancers, but in vitro models reflecting these circumstances are rare. In this study, we describe the development of a novel tri-culture model, using non-small cell lung cancer (NSCLC) cell lines (A549 and Colo699) in combination with a fibroblast cell line (SV 80) and two different endothelial cell lines in a hanging drop technology. Endothelial cells aggregated either in small colonies in Colo699 containing microtissues or in tube like structures mainly in the stromal compartment of microtissues containing A549...
June 7, 2017: Scientific Reports
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