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https://www.readbyqxmd.com/read/28193190/enhanced-expression-of-vastatin-inhibits-angiogenesis-and-prolongs-survival-in-murine-orthotopic-glioblastoma-model
#1
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/28165807/preparation-of-endostatin-loaded-chitosan-nanoparticles-and-evaluation-of-the-antitumor-effect-of-such-nanoparticles-on-the-lewis-lung-cancer-model
#2
Rui-Lin Ding, Fang Xie, Yue Hu, Shao-Zhi Fu, Jing-Bo Wu, Juan Fan, Wen-Feng He, Yu He, Ling-Lin Yang, Sheng Lin, Qing-Lian Wen
The purpose of this study was to prepare ES-loaded chitosan nanoparticles (ES-NPs) and evaluate the antitumor effect of these particles on the Lewis lung cancer model. ES-NPs were prepared by a simple ionic cross-linking method. The characterization of the ES-NPs, including size distribution, zeta potential, loading efficiency and encapsulation efficiency (EE), was performed. An in vitro release test was also used to determine the release behavior of the ES-NPs. Cell viability and cell migration were assayed to detect the in vitro antiangiogenic effect of ES-NPs...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28165672/controlled-release-of-an-endostatin-peptide-using-chitosan-nanoparticles
#3
Sanaz Ebrahimi Samani, Zahra Seraj, Hossein Naderimanesh, Khosro Khajeh, Ahmad Reza Esmaeili Rastaghi, Taher Droudi, Peirhosein Kolivand, Hadi Kazemi, S Mohsen Asghari
Whereas several anticancer peptides are in different stages of clinical development, their administration is limited by fast elimination from the systemic circulation. Peptide loading on nano-carriers can pave the way for their future application. We have recently indicated that a disulfide loop rather than a Zn-binding loop improves the antiangiogenic and antitumor activities of the N-terminal fragment of endostatin. In this study, chitosan nanoparticles (CS NPs) are used for the controlled release of the engineered peptide...
February 6, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28155728/multi-scale-mathematical-modelling-of-tumour-growth-and-microenvironments-in-anti-angiogenic-therapy
#4
Yan Cai, Jie Zhang, Zhiyong Li
BACKGROUND: Angiogenesis, a process of generation of new blood vessels from the pre-existing vasculature, has been demonstrated to be a basic prerequisite for sustainable growth and proliferation of tumour. Anti-angiogenic treatments show normalization of tumour vasculature and microenvironment at least transiently in both preclinical and clinical settings. METHODS: In this study, we proposed a multi-scale mathematical model to simulate the dynamic changes of tumour microvasculature and microenvironment in response to anti-angiogenic drug endostatin (ES)...
December 28, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28133527/time-course-of-neuroprotection-induced-by-in-vivo-normobaric-hyperoxia-preconditioning-and-angiogenesis-factors
#5
Meisam Shahhoseini, Mohammad Reza Bigdeli
OBJECTIVES: Every year, a large number of people lose their lives due to stroke. Stroke is the second leading cause of death worldwide. Surprisingly, recent studies have shown that preconditioning with hyperoxia (HO) increases tissue tolerance to ischemia, ultimately reducing damages caused by stroke. Addressed in this study are beneficial contributions from HO preconditioning into reduced harm to be incurred by the attack, as well as its effect on the expression levels of vascular endothelial growth factor (VEGF) and endostatin...
January 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28123541/differential-effects-of-recombinant-human-endostatin-treatment-on-differentiated-and-undifferentiated-blood-vessels-in-lewis-lung-cancer
#6
Weijiang Fu, Jing Zhuo, Likuan Hu
In the present study, we evaluated the effects of recombinant human (rh-)endostatin treatment on differentiated and undifferentiated tumor vasculature in Lewis lung cancer for the first time. Lewis lung carcinoma models were established. The animals were treated daily with varying doses of rh-endostatin or physiological saline for 14 days. Intravital microscopy was performed following treatment. The expression of CD31 and CD34 was determined by immunohistochemical staining, and microvessel density (MVD) was determined...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28093678/changes-in-serum-vascular-endothelial-growth-factor-and-endostatin-concentrations-associated-with-circulating-endothelial-progenitor-cells-after-acute-ischemic-stroke
#7
Lixia Xue, Hao Chen, Ting Zhang, Jingjiong Chen, Zhi Geng, Yuwu Zhao
Angiogenesis is an important pathophysiological response to cerebral ischemia, and can be modulated by vascular endothelial growth factor (VEGF) and endostatin. Circulating endothelial progenitor cells (EPCs) also play an important role as an endogenous repair mechanism for ischemic injury. We sought to investigate early changes in the expression of VEGF and endostatin in serum and the circulating EPCs in patients with acute ischemic stroke (AIS) and analyzed the relations between them. The peripheral blood and serum samples were obtained from 30 patients at 1, 3, 5 and 7 d after AIS...
April 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28069826/endostatin-inhibits-androgen-independent-prostate-cancer-growth-by-suppressing-nuclear-receptor-mediated-oxidative-stress
#8
Joo Hyoung Lee, Minsung Kang, Hong Wang, Gurudatta Naik, James A Mobley, Guru Sonpavde, W Timothy Garvey, Victor M Darley-Usmar, Selvarangan Ponnazhagan
Androgen-deprivation therapy has been identified to induce oxidative stress in prostate cancer (PCa), leading to reactivation of androgen receptor (AR) signaling in a hormone-refractory manner. Thus, antioxidant therapies have gained attention as adjuvants for castration-resistant PCa. Here, we report for the first time that human endostatin (ES) prevents androgen-independent growth phenotype in PCa cells through its molecular targeting of AR and glucocorticoid receptor (GR) and downstream pro-oxidant signaling...
January 9, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28068681/hypoxia-and-hyperoxia-affect-serum-angiogenic-regulators-in-t2dm-men-during-cycling
#9
Christian Brinkmann, Alexander Metten, Philipp Scriba, Christos V M Tagarakis, Patrick Wahl, Jo Latsch, Klara Brixius, Wilhelm Bloch
Exercise-induced transient increases in pro-angiogenic regulators can promote angiogenesis.This pilot study aims to analyze the potential of exercise to positively affect angiogenic regulators in patients with type 2 diabetes mellitus (T2DM), who often exhibit abnormal angiogenesis, under different environmental conditions. 9 overweight/obese men with uncomplicated T2DM (8 took anti-diabetic drugs) performed submaximal cycling for 40 min in normoxia (≈21 vol%O2), hypoxia (≈14 vol%O2) and during alternating hypoxia/hyperoxia (≈14 vol%O2/≈30 vol%O2, 5-min intervals) (3×3 crossover design)...
February 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28053548/recombinant-human-endostatin-in-combination-with-chop-regimen-for-peripheral-t-cell-lymphoma
#10
Qunling Zhang, Junning Cao, Kai Xue, Xiaojian Liu, Dongmei Ji, Ye Guo, Xiaonan Hong
Peripheral T cell lymphoma (PTCL) has a poor prognosis. Overexpression of vascular endothelial growth factor (VEGF) might contribute to the poor prognosis of PTCL and could be the target of novel therapy. The efficacy and safety of recombinant human endostatin (Endostar) in combination with cyclophosphamide, doxorubicin, vincristine and prednisone (ECHOP) have been explored in 15 PTCL patients. The objective response rate was 80%, with 53.3% patients having achieved complete response (CR) rate. The CR rate was 100% (3/3) in angioimmunoblastic T cell lymphoma (AITL) patients compared to only 36...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27988246/identification-of-neuronal-and-angiogenic-growth-factors-in-an-in-vitro-blood-brain-barrier-model-system-relevance-in-barrier-integrity-and-tight-junction-formation-and-complexity
#11
Christian Freese, Sanshiro Hanada, Petra Fallier-Becker, C James Kirkpatrick, Ronald E Unger
We previously demonstrated that the co-cultivation of endothelial cells with neural cells resulted in an improved integrity of the in vitro blood-brain barrier (BBB), and that this model could be useful to evaluate the transport properties of potential central nervous system disease drugs through the microvascular brain endothelial. In this study we have used real-time PCR, fluorescent microscopy, protein arrays and enzyme-linked immunosorbent assays to determine which neural- and endothelial cell-derived factors are produced in the co-culture and improve the integrity of the BBB...
May 2017: Microvascular Research
https://www.readbyqxmd.com/read/27968915/dynamic-contrast-enhanced-mri-to-predict-response-to-vinorelbine-cisplatin-alone-or-with-rh-endostatin-in-patients-with-non-small-cell-lung-cancer-and-bone-metastases-a-randomised-double-blind-placebo-controlled-trial
#12
Rui Zhang, Zhi-Yu Wang, Yue-Hua Li, Yao-Hong Lu, Shuai Wang, Wen-Xi Yu, Hui Zhao
BACKGROUND: Metastatic bone disease is a frequent complication of advanced non-small-cell lung cancer and causes skeletal-related events which result in a poor prognosis. A standard method to assess the therapeutic response of bone metastases does not currently exist. We used dynamic contrast-enhanced MRI to obtain quantitative measures to assess the suitability of this technique to gauge therapeutic response to vinorelbine-cisplatin plus rh-endostatinfor previously untreated non-small cell lung cancer with bone metastases...
October 2016: Lancet
https://www.readbyqxmd.com/read/27956223/the-effect-of-cryopreservation-on-anti-cancer-activity-of-human-amniotic-membrane
#13
Khashayar Modaresifar, Sara Azizian, Maryam Zolghadr, Hamideh Moravvej, Abolhassan Ahmadiani, Hassan Niknejad
Human amniotic membrane (AM) is an appropriate candidate for treatment of cancer due to special properties, such as inhibition of angiogenesis and secretion of pro-apoptotic factors. This research was designed to evaluate the impact of cryopreservation on cancer cell death induction and anti-angiogenic properties of the AM. Cancer cells were treated with fresh and cryopreserved amniotic condition medium during 24 h and cancer cell viability was determined by MTT assay. To evaluate angiogenesis, the rat aorta ring assay was performed for both fresh and cryopreserved AM within 7 days...
December 9, 2016: Cryobiology
https://www.readbyqxmd.com/read/27930387/noninvasive-estimation-of-liver-fibrosis-in-biopsy-proven-hepatitis-c-virus-infected-patients-angiogenic-fibrogenic-link
#14
El-Shahat A Toson, Gamal E Shiha, Hatem A El-Mezayen, Waleed Samir, Mohamed M El-Khininy
BACKGROUND/AIM: The assessment of liver fibrosis provides useful information not only for diagnosis but also for therapeutic decisions. This study aimed to develop and evaluate a predictive score named the angiogenic index (Angio-Index) for liver fibrosis staging and to compare Angio-Index by King, Gotebörg University Cirrhosis Index, Lok, FIB-4, and aspartate aminotranferase/alanine aminotranferase scores in hepatitis C virus-infected patients. PATIENTS AND METHODS: Serum levels of angiopoietin-2, basic fibroblast growth factor, hepatocyte growth factor, and endostatin were assayed using an enzyme-linked immunosorbent assay in 122 HCV patients represented in two sets (estimation group and validation group)...
February 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27921229/an-extracellular-proteasome-releases-endostatin-from-human-collagen-xviii
#15
Maria L V Reiss-Pistilli, Detlef Schuppan, Madalena M S Barroso, Iranaia Assunção-Miranda, Shirley Farias, Letícia Lery, Michael Bauer, Luiz Juliano, Maria A Juliano, Tatiana Coelho-Sampaio
Endostatin is a potent anti-angiogenic and anti-tumor protein capable of regressing tumors without inducing acquired resistance. Since it is a fragment of the parental molecule, collagen XVIII, its endogenous production depends on the activity of a specific proteolytic enzyme. While such an enzyme has been described in mice, a human counterpart has not been identified so far. Here, we searched for this enzyme by using a fluorescence resonance energy transfer peptide containing the cleavage site of human collagen XVIII...
December 5, 2016: Angiogenesis
https://www.readbyqxmd.com/read/27897101/platelets-from-glioblastoma-patients-promote-angiogenesis-of-tumor-endothelial-cells-and-exhibit-increased-vegf-content-and-release
#16
Clara Di Vito, Stefania Elena Navone, Giovanni Marfia, Loubna Abdel Hadi, Maria Elisa Mancuso, Alessandro Pecci, Francesco Maria Crisà, Valeria Berno, Paolo Rampini, Rolando Campanella, Laura Riboni
Glioblastoma multiforme (GBM) is the most common and fatal intracranial cancer in humans and exhibits intense and aberrant angiogenesis that sustains its malignancy and involves several angiogenic signals. Among them, vascular endothelial growth factor (VEGF) plays a key role and is overexpressed in GBM. Different cells appear to act as triggers of the aberrant angiogenesis, and, among them, platelets act as key participants. In order to provide further insights into the platelet features and angiogenic role in GBM, this study investigated the effects of platelet releasate on GBM-derived endothelial cells (GECs) and the levels of VEGF and endostatin, as pro- and anti-angiogenic components of platelet releasate from GBM patients...
November 29, 2016: Platelets
https://www.readbyqxmd.com/read/27890369/anti-tumor-activity-of-tanshinone-iia-in-combined-with-cyclophosphamide-against-lewis-mice-with-lung-cancer
#17
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/27888623/recombined-humanized-endostatin-endostar-combined-with-chemotherapy-for-advanced-bone-and-soft-tissue-sarcomas-in-stage-iv
#18
Peipei Xing, Jin Zhang, Zhao Yan, Gang Zhao, Xubin Li, Guowen Wang, Yun Yang, Jun Zhao, Ruwei Xing, Sheng Teng, Yulin Ma, Zhichao Liao, Zhiwu Ren, Chao Zhang, Xiuxin Han, Wei Zhang, Kexin Chen, Ping Wang, Jilong Yang
PURPOSE: This retrospective case-series study evaluated efficacy and safety of Endostar combined with chemotherapy in the treatment of advanced bone and soft tissue sarcomas in stage IV. MATERIALS AND METHODS: Forty-seven patients diagnosed with stage IV bone and soft tissue sarcomas and treated with chemotherapy in Tianjin Medical University Cancer Institute & Hospital were reviewed. Of these patients, 23 patients were treated with Endostar plus chemotherapy (designated as combined group), and 24 patients received only chemotherapy (designated as control group)...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27881337/-inhibitory-effect-of-mig-7-silencing-by-retrovirus-mediated-shrna-on-vasculogenic-mimicry-invasion-and-metastasis-of-human-hepatocellular-carcinoma-cells-in-vitro
#19
Bo Qu, Guan-Nan Sheng, Fei Yu, Guan-Nan Chen, Qi Lv, Zhong-Peng Mao, Long Guo, Yi Lv
OBJECTIVE: To explore the inhibitory effect of migration-inducing gene 7 (Mig-7) gene silencing induced by retroviral-mediated small hairpin RNA (shRNA) on vasculogenic mimicry (VM), invasion and metastasis of human hepatocellular carcinoma (HCC) cells in vitro. METHODS: Two target sequences (Mig-7 shRNA-1 and Mig-7 shRNA-2) and one negative control sequence (Mig-7 shRNA-N) were synthesized. The recombinant retroviral vectors carrying Mig-7 shRNA were constructed, and HCC cell line MHCC-97H were transfected with Mig-7 shRNA-1, Mig-7 shRNA-2, Mig-7 shRNA-N, or the empty vector, or treated with 125 µg/mL recombinant human endostatin (ES)...
November 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27858860/antagonistic-effects-of-endostatin-vascular-endothelial-growth-inhibitor-chimeric-recombinant-adenovirus-on-homocysteine-induced-vascular-endothelial-cells-injury-in-vitro-and-in-vivo
#20
Zhen-Tian Cui, Jian-Ping Liu, Jian-Min Yao
BACKGROUND: The study is inclined to investigate the antagonistic effects of endostatin-vascular endothelial growth inhibitor chimeric recombinant adenovirus (Ad-hENDO-VEGI) on homocysteine (Hcy)-induced vascular endothelial cells (VECs) injury in vitro and in vivo. METHODS: Human VECs cell line ECV304 was selected and infected with Ad-hENDO-VEGI. The LDH leakage, SOD activity, and MDA levels were measured by the automatic biochemical analyzer. Cell survival rate was counted by Trypanblau dying...
2016: Medicine (Baltimore)
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