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https://www.readbyqxmd.com/read/28535003/mirna%C3%A2-1271-inhibits-cell-proliferation-in-neuroglioma-by-targeting-fibronectin-1
#1
Jian Gong, Zhao-Xia Wang, Zhen-Ying Liu
miR-1271 is a multifunctional post-translational modulator, which is involved in several diseases. However, the association between microRNA (miR)‑1271 and fibronectin 1 (FN1) remains to be fully elucidated in neuroglioma. In the present study, it was hypothesized that a post‑translational mechanism of miR‑1271 regulates the expression of FN1 in the progression of neuroglioma. The present study aimed to investigate the clinical significance and underlying molecular mechanisms of miRNA‑1271 in the development of glioma...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534933/cuedc2-suppresses-glioma-tumorigenicity-by-inhibiting-the-activation-of-stat3-and-nf-%C3%AE%C2%BAb-signaling-pathway
#2
Feng Li, Chuanxi Tang, Dan Jin, Li Guan, Yue Wu, Xinfeng Liu, Xiuxiang Wu, Qing Yun Wu, Dianshuai Gao
CUEDC2, a CUE domain containing 2 protein, plays critical roles in many biological processes, such as cell cycle, inflammation and tumorigenesis. However, whether CUEDC2 was involved in tumorigenesis of glioma and the possible mechanism remains to be elucidated. In the present study, our results implied that the expression of CUEDC2 was lower in the glioma tissue and glioma cell lines than that of normal tissue and asctrocyte cells. Downregulation of endogenous CUEDC2 in glioma U251 cell lines by RNAi promoted the tumor cells proliferation, migration, invasion and glioma neurosphere formation, while, overexpression of CUEDC2 showed the opposite effect...
May 17, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28530245/shifting-the-optimal-stiffness-for-cell-migration
#3
Benjamin L Bangasser, Ghaidan A Shamsan, Clarence E Chan, Kwaku N Opoku, Erkan Tüzel, Benjamin W Schlichtmann, Jesse A Kasim, Benjamin J Fuller, Brannon R McCullough, Steven S Rosenfeld, David J Odde
Cell migration, which is central to many biological processes including wound healing and cancer progression, is sensitive to environmental stiffness, and many cell types exhibit a stiffness optimum, at which migration is maximal. Here we present a cell migration simulator that predicts a stiffness optimum that can be shifted by altering the number of active molecular motors and clutches. This prediction is verified experimentally by comparing cell traction and F-actin retrograde flow for two cell types with differing amounts of active motors and clutches: embryonic chick forebrain neurons (ECFNs; optimum ∼1 kPa) and U251 glioma cells (optimum ∼100 kPa)...
May 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28528183/effects-of-quercetin-on-proliferation-and-migration-of-human-glioblastoma-u251-cells
#4
Yue Liu, Zhen-Gang Tang, Yi Lin, Xin-Guo Qu, Wei Lv, Guo-Bin Wang, Cai-Li Li
Quercetin is a flavonoid that has been shown to have anti-oxidation, anti-inflammation, anti-allergic, anti-viral, and anti-cancer activities. Here, we examined the effects of quercetin on cell viability, cell cycle progression, and migration in U251 cells, a human glioblastoma cell line. We found that quercetin inhibited cell proliferation after treating cells for 24 (IC50 of 113.65μg/ml) or 48h (IC50 of 48.61μg/ml). Quercetin treatment also induced apoptosis via deregulating the expression of apoptotic genes, including Bax and Bcl-2, and arrested cell cycle at G2/M phases...
May 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28528182/paqr3-inhibits-the-proliferation-migration-and-invasion-in-human-glioma-cells
#5
Shi-Lei Tang, Yuan-Lin Gao, Wen-Zhong Hu
Progestin and AdipoQ Receptor 3 (PAQR3), a member of the PAQR family, is down-regulated in several types of cancers and has been closely associated with tumor progression and development. However, little is known about the functions of PAQR3 in the tumorigenesis of human glioma. Therefore, in this report, we investigated the role of PAQR3 in human glioma. Our results showed that the expression of PAQR3 was significantly reduced in human glioma tissues and cell lines. PAQR3 overexpression inhibited the proliferation of glioma cells in vitro and attenuated tumor xenograft growth in vivo...
May 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28525947/dianhydrogalactitol-a-potential-multitarget-agent-inhibits-glioblastoma-migration-invasion-and-angiogenesis
#6
Xia Jiang, Yinmei Huang, Xiaojie Wang, Qiaofang Liang, Yingjie Li, Fuji Li, Xuanhao Fu, Chonghuan Huang, Huagang Liu
The complexity of cancer has led to single-target agents exhibiting lower-than-desired clinical efficacy. Drugs with multiple targets provide a feasible option for the treatment of complex tumors. Multitarget anti-angiogenesis agents are among the new generation of anticancer drugs and have shown favorable clinical efficacy. Dianhydrogalactitol (DAG) is a chemotherapeutic agent for chronic myeloid leukemia and lung cancer. Recently, it has been tested in phase II trials of glioblastoma treatment; however, mechanisms of DAG in glioblastoma have not been elucidated...
May 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28525358/galanin-suppresses-proliferation-of-human-u251-and-t98g-glioma-cells-via-its-subtype-1-receptor
#7
Zhu Mei, Yutao Yang, Yun Li, Feiya Yang, Junfa Li, Xingnian Zeng, Zhi-Qing David Xu
Galanin is a neuropeptide with a widespread distribution throughout the nervous and endocrine systems, and recent studies have shown an anti-proliferative effect of galanin on several types of tumors. However, whether and how galanin and its receptors are involved in the regulation of cell proliferation in glioma cells remains unclear. In this study, the roles of galanin and its subtype 1 receptor (GAL1) in the proliferation of human U251 and T98G glioma cells were investigated. We found that galanin significantly suppressed the proliferation of U251 and T98G cells as well as tumor growth in nude mice...
May 19, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28506595/plumbagin-suppresses-the-migration-and-invasion-of-glioma-cells-via-downregulation-of-mmp-2-9-expression-and-inaction-of-pi3k-akt-signaling-pathway-in%C3%A2-vitro
#8
Guanghui Chen, Yan Yue, Jun Qin, Xinping Xiao, Qing Ren, Bin Xiao
Plumbagin is a natural naphthoquinone constituent isolated from the roots of medicinal plant Plumbago zeylanica L., and has demonstrated anti-proliferative and anti-invasion activities in various cancer cells. However, its effect on the migration and invasion of glioma cells has not been elucidated. Therefore, human glioma U87 and U251 cells were treated with plumbagin at 1.0 and 2.0 μM for 24 h, and cell migration and invasion were assessed with scratch wound healing and invasion assays. The results showed that plumbagin significantly inhibited the migration and invasion of U87 and U251 cells, suppressed the activity and expression of MMP-2/-9, and inhibited the nuclear translocation of transcription factors Sp1 in the U87 and U251 cells...
April 24, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28481046/human-neural-stem-cell-biodistribution-and-predicted-tumor-coverage-by-a-diffusible-therapeutic-in-a-mouse-glioma-model
#9
Michael E Barish, Kelsey Herrmann, Yang Tang, Siranush Argalian Herculian, Marianne Metz, Soraya Aramburo, Revathiswari Tirughana, Margarita Gutova, Alexander Annala, Rex A Moats, Leanne Goldstein, Russell C Rockne, Jennifer Gutierrez, Christine E Brown, Lucy Ghoda, Karen S Aboody
Engineered neural stem cells (NSCs) intrinsically migrating to brain tumors offer a promising mechanism for local therapeutic delivery. However, difficulties in quantitative assessments of NSC migration and in estimates of tumor coverage by diffusible therapeutics have impeded development and refinement of NSC-based therapies. To address this need, we developed techniques by which conventional serial-sectioned formalin-fixed paraffin-embedded (FFPE) brains can be analyzed in their entirety across multiple test animals...
June 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28480395/inhibition-of-paclitaxel-against-neuroglioma-cells-u251-growth-and-its-mechanism
#10
ShiMeng Xin, Fang Yu, ChunYan Yang, Xia Hao
BACKGROUND: Glioma is the most common primary tumor of the central nervous system, and accounted for about 70% of primary tumors. MATERIALS AND METHODS: In the study, antitumour activity and mechanism of paclitaxel was investigated. Different concentrations of paclitaxel (200, 300, 400 μmol/L) was treated in neuroglioma cellsU251. RESULTS: Paclitaxel significantly inhibited neuroglioma cells growth, and promoted its apoptosis. Paclitaxel can block tumour cells in the G2/M phase...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28474573/corilagin-induces-high-levels-of-apoptosis-in-the-temozolomide-resistant-t98g-glioma-cell-line
#11
Roberta Milani, Eleonora Brognara, Enrica Fabbri, Alessia Finotti, Monica Borgatti, Ilaria Lampronti, Giovanni Marzaro, Adriana Chilin, Kenneth Ka-Ho Lee, Stanton Hon-Lung Kok, Chung-Hin Chui, Roberto Gambari
Glioblastoma multiforme (GBM), a malignant tumor of the central nervous system, has a high mortality rate; no curativetreatment is presently available and the most commonly used chemiotherapeutic drug, the alkylating agent temozolomide (TMZ), is only able to increase life expectancy and is often associated with drugresistance. Therefore, an urgent need does exist for novel drugs aimed at treating gliomas. In the present study we obtained three major results using corliagin: (a) demonstrate that it inhibits the growth of U251 glioma cells through activation of the apoptotic pathway; (b) demonstrate that it is also active on temozolomideresistant T98G glioma cells; (c) demonstrate that when used in combination with temozolomide on T98G glioma cells a higher level of pro-apototic and antiproliferative effects are observed...
May 4, 2017: Oncology Research
https://www.readbyqxmd.com/read/28469953/microrna-1468-5p-inhibits-glioma-cell-proliferation-and-induces-cell-cycle-arrest-by-targeting-rrm1
#12
Kuan Jiang, Tongle Zhi, Wenhui Xu, Xiupeng Xu, Weining Wu, Tianfu Yu, Er Nie, Xu Zhou, Zhongyuan Bao, Xin Jin, Junxia Zhang, Yingyi Wang, Ning Liu
MicroRNAs are associated with different types of cancers. In this study, we found that miR-1468-5p could inhibit growth and cell cycle progression in glioma by targeting ribonucleotide reductase large subunit M1 (RRM1). First, we analyzed miR-1468-5p expression in different glioma grades and the prognostic significance of its expression in glioblastoma multiform patients from the Chinese Glioma Genome Atlas. Then, we expressed miR-1468-5p in U87 and U251 cells and assessed the effects on proliferation and cell cycle progression using cell counting kit-8, colony formation, EdU and flow cytometry assays...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28463091/curcumin-increases-efficiency-of-%C3%AE-irradiation-in-gliomas-by-inhibiting-hedgehog-signaling-pathway
#13
Xiangqi Meng, Jinquan Cai, Jichao Liu, Bo Han, Fei Gao, Weida Gao, Yao Zhang, Jinwei Zhang, Zhefeng Zhao, Chuanlu Jiang
It was reported that γ-irradiation had a controversial therapeutic effect on glioma cells. We aimed to investigate the cytotoxic effect on the glioma cells induced by γ-irradiation and explore the treatment to rescue the phenotype alteration of remaining cells. We used transwell assay to detect the glioma cell invasion and migration capacity. Cell proliferation and apoptosis were tested by the CCK-8 assay and flow cytometry respectively. Western Blot was used to detect the activity of Hedgehog signaling pathway and Epithelial-to-Mesenchymal Transition (EMT) status...
May 2, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28459461/mir-181b-modulates-egfr-dependent-vcam-1-expression-and-monocyte-adhesion-in-glioblastoma
#14
Y-S Liu, H-Y Lin, S-W Lai, C-Y Huang, B-R Huang, P-Y Chen, K-C Wei, D-Y Lu
Tumor-associated macrophages (TAMs) originate as circulating monocytes, and are recruited to gliomas, where they facilitate tumor growth and migration. Understanding the interaction between TAM and cancer cells may identify therapeutic targets for glioblastoma multiforme (GBM). Vascular cell adhesion molecule-1 (VCAM-1) is a cytokine-induced adhesion molecule expressed on the surface of cancer cells, which is involved in interactions with immune cells. Analysis of the glioma patient database and tissue immunohistochemistry showed that VCAM-1 expression correlated with the clinico-pathological grade of gliomas...
May 1, 2017: Oncogene
https://www.readbyqxmd.com/read/28454354/pt93-a-novel-caffeic-acid-amide-derivative-suppresses-glioblastoma-cells-migration-proliferation-and-mmp-2-9-expression
#15
Kaishu Li, Yalin Tu, Qingyu Liu, Ying Ouyang, Mingliang He, Ming Luo, Jingkao Chen, Rongbiao Pi, Anmin Liu
Glioblastoma multiforme (GBM) is the most malignant type of primary brain tumor in adults and can diffusely infiltrate adjacent normal tissue. GBM is therefore rarely cured by surgery or radiation therapy. Matrix metalloproteinases (MMPs) are involved in tissue remodeling and numerous other physiological progresses. The MMPs MMP-2 and MMP-9 are associated with the invasion ability of GBM. PT93 is a novel caffeic acid amide derivative that was first synthesized in 2013. In the present study, the human GBM T98G, U87 and U251 cell lines and the normal mouse neuron HT22 cell line were used to investigate the anticancer and cytotoxic effects of PT93 in vitro...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454322/accumulation-of-low-dose-bix01294-promotes-metastatic-potential-of-u251-glioblastoma-cells
#16
Min Young Kim, Shin-Ji Park, Jae Woong Shim, Yu Jin Song, Kwangmo Yang, Seong-Joon Park, Kyu Heo
BIX01294 (Bix) is known to be a euchromatic histone-lysine N-methyltransferase 2 inhibitor and treatment with Bix suppresses cancer cell survival and proliferation. In the present study, it was observed that sequential treatment with low-dose Bix notably increases glioblastoma cell migration and metastasis. It was demonstrated that U251 cells sequentially treated with low-dose Bix exhibited induced characteristic changes in critical epithelial-mesenchymal transition (EMT) markers, including E-cadherin, N-cadherin, β-catenin and zinc finger protein SNAI2...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28449039/polyphyllin-i-induces-g2-m-phase-arrest-and-apoptosis-in-u251-human-glioma-cells-via-mitochondrial-dysfunction-and-the-jnk-signaling-pathway
#17
Jiaxin Liu, Yueting Zhang, Li Chen, Fei Yu, Xiaojin Li, Dan Tao, Jianhua Zhao, Shuai Zhou
Glioblastoma is the most aggressive brain tumor, and its prognosis remains poor. Therefore, novel therapeutic strategies are needed for glioma therapy. Polyphyllin I (PPI), a bioactive constituent extracted from Paris polyphylla, was reported to have anti-tumor activity. However, the detailed mechanism for this activity remains unclear. Here, we investigated the inhibitory effects of PPI on glioma cells and its mechanisms in vitro. U251 cells were treated with various concentrations of PPI (2-9 μM) for 24 to 72 h...
April 26, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28445150/modulation-of-the-inwardly-rectifying-potassium-channel-kir4-1-by-the-pro-invasive-mir-5096-in-glioblastoma-cells
#18
Dominique Thuringer, Gaetan Chanteloup, Jonathan Boucher, Nicolas Pernet, Christophe Boudesco, Gaetan Jego, Aurelien Chatelier, Patrick Bois, Jessica Gobbo, Laurent Cronier, Eric Solary, Carmen Garrido
Inwardly rectifying potassium channels (Kir), and especially the barium-sensitive Kir4.1 encoded by KCNJ10, are key regulators of glial functions. A lower expression or mislocation of Kir4.1 is detected in human brain tumors. MicroRNAs participate in the regulation of ionic channels and associated neurologic disorders. Here, we analyze effects of miR-5096 on the Kir4.1 expression and function in two glioblastoma cell lines, U87 and U251. Using whole-cell patch-clamp and western-blot analysis, we show that cell loading with miR-5096 decreases the Kir4...
April 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28444207/characterization-of-relative-biological-effectiveness-for-conventional-radiation-therapy-a-comparison-of-clinical-6-mv-x-rays-and-137cs
#19
Michelle Howard, Chris Beltran, Jann Sarkaria, Michael G Herman
Various types of radiation are utilized in the treatment of cancer. Equal physical doses of different radiation types do not always result in the same amount of biological damage. In order to account for these differences, a scaling factor known as the relative biological effectiveness (RBE) can be used. 137Cesium (137Cs) has been used as a source of radiation in a significant body of radiation therapy research. However, high-energy X-rays, such as 6 MV X-rays, are currently used clinically to treat patients...
April 24, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28443475/microrna-140-5p-inhibits-cell-proliferation-and-invasion-by-regulating-vegfa-mmp2-signaling-in-glioma
#20
Yuan Hu, Yanyan Li, Chun Wu, Liang Zhou, Xiaoxiao Han, Qingyue Wang, Xueshun Xie, Youxin Zhou, Ziwei Du
Glioma is the most common primary malignant tumor of the central nervous system, which results in both a poor prognosis and outcome because of the aggressive progression of disease, growth and resistance to surgery, chemotherapy, and radiotherapy. MiR-140-5p is a small, non-coding single-stranded RNA molecule, which was previously studied in the settings of human tongue cancer, hepatocellular carcinoma, and colorectal cancer. However, detailed data that formally demonstrate the contribution of miR-140-5p to glioma development are missing...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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