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https://www.readbyqxmd.com/read/27930983/sargassum-fusiforme-polysaccharides-inhibit-vegf-a-related-angiogenesis-and-proliferation-of-lung-cancer-in-vitro-and-in-vivo
#1
Huiling Chen, Ling Zhang, Xiange Long, Peifei Li, Shengcan Chen, Wei Kuang, Junming Guo
Sargassum fusiforme (Harv.) is a brown alga belonging to the Sargasaceae family. The Sargassum fusiforme polysaccharides (SFPS) have demonstrated good anti-tumor and immunomodulatory activity. However, the underlying mechanisms of its anti-tumorigenesis, especially the anti-angiogenic activity is yet to be established. In the present study, we attempted to determine the effects of SFPS on the human lung adenocarcinoma SPC-A-1 cells and its xenograft model. The results showed that SFPS provides a concentration-dependent inhibition of SPC-A-1 cell proliferation in in vitro and the tumor growth in in vivo studies...
December 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27890369/anti-tumor-activity-of-tanshinone-iia-in-combined-with-cyclophosphamide-against-lewis-mice-with-lung-cancer
#2
Qi Li, Ke Hu, Si Tang, Li-Fang Xu, Yu-Chuan Luo
OBJECTIVE: To explore the anti-tumor activity of tanshinone IIA in combined with cyclophosphamide against Lewis mice with lung cancer and the effect on cellular immune function. METHODS: Lewis tumor cells were inoculated subcutaneously into the right armpit of mice in each group (n = 20) to establish Lewis lung cancer mice model. After model establishment, mice in the model group were given normal saline by lavage, qd. Mice in treatment I group were given intraperitoneal injection of Tan IIA, 15 mg/kg, qd...
November 2016: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/27876017/increased-wnt5a-in-squamous-cell-lung-carcinoma-inhibits-endothelial-cell-motility
#3
J Rapp, E Kiss, M Meggyes, E Szabo-Meleg, D Feller, G Smuk, T Laszlo, V Sarosi, T F Molnar, K Kvell, J E Pongracz
BACKGROUND: Angiogenesis is important both in normal tissue function and disease and represents a key target in lung cancer (LC) therapy. Unfortunately, the two main subtypes of non-small-cell lung cancers (NSCLC) namely, adenocarcinoma (AC) and squamous cell carcinoma (SCC) respond differently to anti-angiogenic e.g. anti-vascular endothelial growth factor (VEGF)-A treatment with life-threatening side effects, often pulmonary hemorrhage in SCC. The mechanisms behind such adverse reactions are still largely unknown, although peroxisome proliferator activator receptor (PPAR) gamma as well as Wnt-s have been named as molecular regulators of the process...
November 23, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27863726/-met-receptor-inhibition-hope-against-resistance-to-targeted-therapies
#4
REVIEW
Audrey Hochart, Pierre Leblond, Xuefen Le Bourhis, Samuel Meignan, David Tulasne
Overcoming the drug resistance remains a crucial issue in cancer treatment. For refractory patients, the use of MET receptor tyrosine kinase inhibitors seems to be hopeful. Indeed, important mechanisms underlying drug resistance argue for association of MET inhibitors with targeted therapies, both on first-line to prevent a primary resistance and on the second line to overcoming acquired resistance. Indeed, met gene amplification is the second most common alteration involved in acquired resistance to anti-epidermal growth factor receptor (EGFR) therapies in non-small cells lung cancer (NSCLC)...
November 15, 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/27863474/hypoxic-resistance-of-kras-mutant-tumor-cells-to-3-bromopyruvate-is-counteracted-by-prima-1-and-reversed-by-n-acetylcysteine
#5
Andrea Orue, Valery Chavez, Mary Strasberg-Rieber, Manuel Rieber
BACKGROUND: The metabolic inhibitor 3-bromopyruvate (3-BrPA) is a promising anti-cancer alkylating agent, shown to inhibit growth of some colorectal carcinoma with KRAS mutation. Recently, we demonstrated increased resistance to 3-BrPA in wt p53 tumor cells compared to those with p53 silencing or mutation. Since hypoxic microenvironments select for tumor cells with diminished therapeutic response, we investigated whether hypoxia unequally increases resistance to 3-BrPA in wt p53 MelJuso melanoma harbouring (Q61L)-mutant NRAS and wt BRAF, C8161 melanoma with (G12D)-mutant KRAS (G464E)-mutant BRAF, and A549 lung carcinoma with a KRAS (G12S)-mutation...
November 18, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27863471/tanshinone-iia-combined-with-adriamycin-inhibited-malignant-biological-behaviors-of-nsclc-a549-cell-line-in-a-synergistic-way
#6
Jun Xie, Jia-Hui Liu, Heng Liu, Xiao-Zhong Liao, Yuling Chen, Mei-Gui Lin, Yue-Yu Gu, Tao-Li Liu, Dong-Mei Wang, Hui Ge, Sui-Lin Mo
BACKGROUND: The study was designed to develop a platform to verify whether the extract of herbs combined with chemotherapy drugs play a synergistic role in anti-tumor effects, and to provide experimental evidence and theoretical reference for finding new effective sensitizers. METHODS: Inhibition of tanshinone IIA and adriamycin on the proliferation of A549, PC9 and HLF cells were assessed by CCK8 assays. The combination index (CI) was calculated with the Chou-Talalay method, based on the median-effect principle...
November 18, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27765573/a-polysaccharide-from-sargassum-thunbergii-inhibits-angiogenesis-via-downregulating-mmp-2-activity-and-vegf-hif-1%C3%AE-signaling
#7
Minghui Ou, Xuezhi Sun, Jiancheng Liang, Fei Liu, Liqin Wang, Xiaomin Wu, Jie Tu
A water-soluble polysaccharide (STPC2) was isolated from the boiling-water extract of Sargassum thunbergii, purified by CaCl2 precipitation and chromatography on DEAE-cellulose and Sephacryl S-300 column. It was found that STPC2, with a molecular weight of 57kD, was composed of fucose, xylose, galactose and glucuronic acid, in a ratio of 8.1: 3.8: 2.1: 1.0. Additionally, we found that STPC2 significantly inhibited endothelial cell migration and tube formation without toxicity. Moreover, STPC2 significantly inhibited lung cancer cell A549 migration and proliferation...
October 17, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27752361/immune-modulating-effects-of-bevacizumab-in-metastatic-non-small-cell-lung-cancer-patients
#8
E C Martino, G Misso, P Pastina, S Costantini, F Vanni, C Gandolfo, C Botta, F Capone, A Lombardi, L Pirtoli, P Tassone, C Ulivieri, P Tagliaferri, M G Cusi, M Caraglia, P Correale
The mPEBev is an anticancer regimen which combines a chemotherapy doublet, based on cisplatin and oral etoposide (mPE), with bevacizumab (mPEBev), a mAb targeting the vasculo-endothelial growth factor (VEGF). In previous studies, this regimen showed powerful anti-angiogenetic effects and significant antitumor activity in metastatic non-small-cell lung cancer (mNSCLC) patients. We also recorded the best benefit in patients exhibiting low-systemic inflammatory profile at baseline. On these bases, we hypothesized that mPEBev antitumor activity could be partially related to bevacizumab-associated immunological effects...
2016: Cell Death Discovery
https://www.readbyqxmd.com/read/27736957/high-potency-vegfrs-met-fms-triple-blockade-by-tas-115-concomitantly-suppresses-tumor-progression-and-bone-destruction-in-tumor-induced-bone-disease-model-with-lung-carcinoma-cells
#9
Hidenori Fujita, Akira Gomori, Yayoi Fujioka, Yuki Kataoka, Kenji Tanaka, Akihiro Hashimoto, Takamasa Suzuki, Kenjiro Ito, Tomonori Haruma, Hiromi Yamamoto-Yokoi, Naomoto Harada, Motomu Sakuragi, Nobuyuki Oda, Kenichi Matsuo, Masaki Inada, Kazuhiko Yonekura
Approximately 25-40% of patients with lung cancer show bone metastasis. Bone modifying agents reduce skeletal-related events (SREs), but they do not significantly improve overall survival. Therefore, novel therapeutic approaches are urgently required. In this study, we investigated the anti-tumor effect of TAS-115, a VEGFRs and HGF receptor (MET)-targeted kinase inhibitor, in a tumor-induced bone disease model. A549-Luc-BM1 cells, an osteo-tropic clone of luciferase-transfected A549 human lung adenocarcinoma cells (A549-Luc), produced aggressive bone destruction associated with tumor progression after intra-tibial (IT) implantation into mice...
2016: PloS One
https://www.readbyqxmd.com/read/27735951/mir-590-5p-inhibits-colorectal-cancer-angiogenesis-and-metastasis-by-regulating-nuclear-factor-90-vascular-endothelial-growth-factor-a-axis
#10
Qingxin Zhou, Yuekun Zhu, Xiaoli Wei, Jianhua Zhou, Liang Chang, Hong Sui, Yu Han, Daxun Piao, Ruihua Sha, Yuxian Bai
Altered expression of microRNA-590-5p (miR-590-5p) is involved in tumorigenesis, however, its role in colorectal cancer (CRC) remains to be determined. In this study, we focused on examining the effects of different expression levels of miR-590-5p in cancer cells and normal cells. Results showed that there are lower expression levels of miR-590-5p in human CRC cells and tissues than in normal control cells and tissues. Similarly, in our xenograft mouse model, knockdown of miR-590-5p promoted the progression of CRC...
October 13, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27706035/re-188-enhances-the-inhibitory-effect-of-bevacizumab-in-non-small-cell-lung-cancer
#11
Jie Xiao, Xiaobo Xu, Xiao Li, Yanli Li, Guobing Liu, Hui Tan, Hua Shen, Hongcheng Shi, Dengfeng Cheng
The malignant behaviors of solid tumors such as growth, infiltration and metastasis are mainly nourished by tumor neovascularization. Thus, anti-angiogenic therapy is key to controlling tumor progression. Bevacizumab, a humanized anti-vascular endothelial growth factor (VEGF) antibody, plus chemotherapy or biological therapy can prolong survival for cancer patients, but treatment-related mortality is a concern. To improve inhibitory effect and decrease side-effects on non-small-cell lung cancer (NSCLC), we used Re-188, which is a β emitting radionuclide, directly labeled with bevacizumab for radioimmunotherapy in a human A549 tumor model...
September 30, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27686510/the-safety-and-efficacy-of-ramucirumab-in-combination-with-docetaxel-in-the-treatment-of-lung-cancer
#12
Valérie Paulus, Virginie Avrillon, Maurice Pérol
Angiogenesis is critical for tumor growth, proliferation and metastasis with the crucial role of Vascular Endothelial Growth factor (VEGF) pathway. Ramucirumab is a monoclonal antibody that specifically targets the extracellular domain of Vascular Endothelial Growth Factor Receptor 2. Areas covered: We performed a search on Medline to browse the current literature on Ramucirumab and anti-angiogenic agents, for the treatment of NSCLC. The REVEL study demonstrated a significant improvement of response rate, progression-free survival and overall survival by adding ramucirumab to docetaxel compared to docetaxel plus a placebo in second-line treatment of advanced non-small cell lung cancer, irrespective of histology, with an acceptable safety profile...
October 8, 2016: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/27651308/efficacy-of-cotargeting-angiopoietin-2-and-the-vegf-pathway-in-the-adjuvant-postsurgical-setting-for-early-breast-colorectal-and-renal-cancers
#13
Florence T H Wu, Shan Man, Ping Xu, Annabelle Chow, Marta Paez-Ribes, Christina R Lee, Steven R Pirie-Shepherd, Urban Emmenegger, Robert S Kerbel
Antiangiogenic tyrosine kinase inhibitors (TKI) that target VEGF receptor-2 (VEGFR2) have not been effective as adjuvant treatments for micrometastatic disease in phase III clinical trials. Angiopoietin-2 (Ang2) is a proangiogenic and proinflammatory vascular destabilizer that cooperates with VEGF. The purpose of this study was to test whether CVX-060 (an Ang2-specific CovX-body) can be combined with VEGFR2-targeting TKIs (sunitinib or regorafenib) to successfully treat postsurgical metastatic disease in multiple orthotopically implanted human tumor xenograft and syngeneic murine tumor models...
December 1, 2016: Cancer Research
https://www.readbyqxmd.com/read/27649680/ginkgo-biloba-exocarp-extracts-inhibits-angiogenesis-and-its-effects-on-wnt-%C3%AE-catenin-vegf-signaling-pathway-in-lewis-lung-cancer
#14
Dongdong Han, Chengjie Cao, Ya Su, Jun Wang, Jian Sun, Huasheng Chen, Aihua Xu
ETHNOPHARMACOLOGICAL RELEVANCE: A fruit of Ginkgo biloba L. also known as Ginkgo biloba, can be used for the treatment of cancer in Chinese traditional medicine. The scientific name of succulent skin, which is the episperm of Ginkgo nuts, is exocarp. Experiment shows that Ginkgo biloba exocarp extracts (GBEE) has the effects of immune promotion, cancer inhibition and etc. AIM OF STUDY: Study on the activity of GBEE against Lewis lung cancer (LLC) angiogenesis and its partial molecular mechanism...
November 4, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27602496/heparins-that-block-vegf-a-mediated-von-willebrand-factor-fiber-generation-are-potent-inhibitors-of-hematogenous-but-not-lymphatic-metastasis
#15
Lukas Goertz, Stefan Werner Schneider, Anna Desch, Frank Thomas Mayer, Julian Koett, Kai Nowak, Ioannis Karampinis, Michael K Bohlmann, Viktor Umansky, Alexander Thomas Bauer
Von Willebrand factor (VWF) serves as a nidus for platelet aggregation and thrombosis. We hypothesize that VWF fibers contribute to the development of venous thromboembolism (VTE) and to metastasis formation. Here, we show that vascular and lymphatic endothelial cells (ECs) express VWF in vitro and release VWF fibers after activation by tumor cell supernatants. In contrast, an ex vivo analysis of primary mouse tumors revealed the presence of VWF fibers in the blood microvasculature but not in lymphatic vessels...
September 2, 2016: Oncotarget
https://www.readbyqxmd.com/read/27586635/anti-cancer-effects-of-baicalein-in-non-small-cell-lung-cancer-in-vitro-and-in-vivo
#16
Mary-Clare Cathcart, Zivile Useckaite, Clive Drakeford, Vikki Semik, Joanne Lysaght, Kathy Gately, Kenneth J O'Byrne, Graham P Pidgeon
BACKGROUND: Baicalein is a widely used Chinese herbal medicine derived from Scutellaria baicalenesis, which has been traditionally used as anti-inflammatory and anti-cancer therapy. In this study we examined the anti-tumour pathways activated following baicalein treatment in non-small cell lung cancer (NSCLC), both in-vitro and in-vivo. METHODS: The effect of baicalein treatment on H-460 cells in-vitro was assessed using both BrdU assay (cell proliferation) and High Content Screening (multi-parameter apoptosis assay)...
2016: BMC Cancer
https://www.readbyqxmd.com/read/27569654/sulfated-fucoidan-fp08s2-inhibits-lung-cancer-cell-growth-in-vivo-by-disrupting-angiogenesis-via-targeting-vegfr2-vegf-and-blocking-vegfr2-erk-vegf-signaling
#17
Huanjun Chen, Qifei Cong, Zhenyun Du, Wenfeng Liao, Lei Zhang, Yanli Yao, Kan Ding
Fucoidan may inhibit angiogenesis. However, its functional target molecule and the underlying mechanism are still vague. In the present study, we showed that sulfated fucoidan FP08S2 from Sargassum fusiforme inhibited tube formation as well as migration and invasion of human microvascular endothelial cells (HMEC-1). In addition, FP08S2 was confirmed to disrupt VEGF-induced angiogenesis both in vitro and in vivo. Further study indicated that FP08S2 could bind to both VEGF and VEGFR2 to interfere with VEGF-VEGFR2 interaction...
November 1, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27541266/reprogramming-of-normal-fibroblasts-into-cancer-associated-fibroblasts-by-mirnas-mediated-ccl2-vegfa-signaling
#18
Hua Shen, Xiaobo Yu, Fengming Yang, Zhihua Zhang, Jianxin Shen, Jin Sun, Swati Choksi, Siriporn Jitkaew, Yongqian Shu
Cancer-associated fibroblasts (CAFs), the most common constituent of the tumor stoma, are known to promote tumor initiation, progression and metastasis. However, the mechanism of how cancer cells transform normal fibroblasts (NFs) into CAFs is largely unknown. In this study, we determined the contribution of miRNAs in the transformation of NFs into CAFs. We found that miR-1 and miR-206 were down-regulated, whereas miR-31 was up-regulated in lung CAFs when compared with matched NFs. Importantly, modifying the expression of these three deregulated miRNAs induced a functional conversion of NFs into CAFs and vice versa...
August 2016: PLoS Genetics
https://www.readbyqxmd.com/read/27426129/latest-results-for-anti-angiogenic-drugs-in-cancer-treatment
#19
Sofie Frandsen, Sascha Kopp, Markus Wehland, Jessica Pietsch, Manfred Infanger, Daniela Grimm
BACKGROUND: Angiogenesis is a mechanism, which tumors use to recruit oxygen and nutrients in order to maintain growth. The vascular endothelial growth factor family is the primary mediator of this process. For the last couple of decades, inhibition of angiogenesis has been the subject of extensive research, but so far anti-angiogenic drugs have only shown a modest effect. METHODS: This paper reviews four relevant anti-angiogenic drugs: bevacizumab, ramucirumab, nintedanib and sunitinib...
July 15, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27382307/risk-of-venous-and-arterial-thromboembolic-events-associated-with-anti-vegf-agents-in-advanced-non-small-cell-lung-cancer-a-meta-analysis-and-systematic-review
#20
Dianbao Zhang, Xianfen Zhang, Chunling Zhao
AIMS: To assess the incidence and risk of arterial and venous thromboembolic events (ATEs and VTEs) associated with antivascular endothelial growth factor (VEGF) agents, including VEGF receptor-tyrosine kinase inhibitors and VEGF monoclonal antibodies, in advanced non-small-cell lung cancer (NSCLC) patients. METHODS: We performed a broad search of PubMed for relevant trials. Prospective randomized trials evaluating therapy with or without anti-VEGF agents in patients with advanced NSCLC were included for analysis...
2016: OncoTargets and Therapy
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