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Aurora kinase

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https://www.readbyqxmd.com/read/28720575/hsp72-and-nek6-cooperate-to-cluster-amplified-centrosomes-in-cancer-cells
#1
Josephina Sampson, Laura O'Regan, Martin Js Dyer, Richard Bayliss, Andrew M Fry
Cancer cells frequently possess extra amplified centrosomes clustered into two poles whose pseudo-bipolar spindles exhibit reduced fidelity of chromosome segregation and promote genetic instability. Inhibition of centrosome clustering triggers multipolar spindle formation and mitotic catastrophe, offering an attractive therapeutic approach to selectively kill cells with amplified centrosomes. However, mechanisms of centrosome clustering remain poorly understood. Here, we identify a new pathway that acts through NIMA-related kinase 6 (Nek6) and Hsp72 to promote centrosome clustering...
July 18, 2017: Cancer Research
https://www.readbyqxmd.com/read/28700980/aurora-a-kinase-regulates-non-homologous-end-joining-and-poly-adp-ribose-polymerase-function-in-ovarian-carcinoma-cells
#2
Thuy-Vy Do, Jeff Hirst, Stephen Hyter, Katherine F Roby, Andrew K Godwin
Ovarian cancer is usually diagnosed at late stages when cancer has spread beyond the ovary and patients ultimately succumb to the development of drug-resistant disease. There is an urgent and unmet need to develop therapeutic strategies that effectively treat ovarian cancer and this requires a better understanding of signaling pathways important for ovarian cancer progression. Aurora A kinase (AURKA) plays an important role in ovarian cancer progression by mediating mitosis and chromosomal instability. In the current study, we investigated the role of AURKA in regulating the DNA damage response and DNA repair in ovarian carcinoma cells...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28700101/dynamic-equilibrium-of-the-aurora-a-kinase-activation-loop-revealed-by-single-molecule-spectroscopy
#3
James A H Gilburt, Hajrah Sarkar, Peter Sheldrake, Julian Blagg, Liming Ying, Charlotte Dodson
The conformation of the activation loop (T-loop) of protein kinases underlies enzymatic activity and influences the binding of small molecule inhibitors. Using single molecule fluorescence spectroscopy, we have determined that phosphorylated Aurora-A kinase is in dynamic equilibrium between a DFG-in-like active T-loop conformation and a DFG-out-like inactive conformation and have measured the rate constants of interconversion. Addition of the Aurora-A activating protein TPX2 shifts the equilibrium towards an active T-loop conformation, whereas addition of the inhibitors MLN8054 and CD532 favors an inactive T-loop...
July 12, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28687013/association-between-the-functional-polymorphism-ile31phe-in-the-aurka-gene-and-susceptibility-of-hepatocellular-carcinoma-in-chronic-hepatitis-b-virus-carriers
#4
Zhiyu Bao, Lei Lu, Xinyi Liu, Bingqian Guo, Yun Zhai, Yuanfeng Li, Yahui Wang, Bobo Xie, Qian Ren, Pengbo Cao, Yuqing Han, Weihua Jia, Minshan Chen, Xinqiang Liang, Xuan Wang, Yi-Xin Zeng, Fuchu He, Hongxing Zhang, Ying Cui, Gangqiao Zhou
Aurora kinase A (AURKA) is a serine threonine kinase which affects chromosomal separation and mitotic spindle stability through interaction with the centrosome during mitosis. Two functional nonsynonymous polymorphisms of the AURKA gene (Ile31Phe and Val57Ile) have been reported recently. We analyzed the association between the two polymorphisms and risk of the occurrence of hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC) in the Guangxi population consisting of 348 patients with HCC and 359 control subjects, and then validated the significant association in the Guangdong population consisting of 440 cases and 456 controls...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28685689/arylurea-derivatives-a-class-of-potential-cancer-targeting-agents
#5
Jia-Nian Chen, De-Wen Wu, Ting Li, Kang-Jian Yang, Li Cheng, Zu-Ping Zhou, Shi-Ming Pu, Wan-Hua Lin
Arylurea derivatives, an important class of small molecules, have received considerable attention in recent years due to their wide range of biological applications. Various molecular targeted agents with arylurea scaffold as potential enzyme/receptor inhibitors were constructed with the successful development of sorafenib and regorafenib. This review focuses on those arylureas possessing anti-cancer activities from 2010 to date. According to their different mechanisms of action, these arylureas are divided into the following six categories: (1) Ras/Raf/MEK/ERK signaling pathway inhibitors; (2) tumor angiogenesis inhibitors, their targets include vascular endothelial growth factor receptors (VEGFRs), fibroblast growth factor receptors (FGFRs), platelet-derived growth factor receptors (PDGFRs), epidermal growth factor receptors (EGFRs), insulin-like growth factor 1 receptor (IGF-1R), Fms-like tyrosine kinase 3 (FLT3), c-Kit, MET, and Smoothened (Smo); (3) PI3K/AKT/mTOR signaling pathway inhibitors; (4) cell cycle inhibitors, their targets include checkpoint kinases (Chks), cyclin-dependent kinases (CDKs), Aurora, SUMO activating enzyme 1 (SUMO E1), tubulin, and DNA; (5) tumor differentiation, migration, and invasion inhibitors, their targets include matrix metalloproteinases (MMPs), LIM kinase (Limk), nicotinamide phosphoribosyltransferase (Nampt), and histone deacetylase (HDAC); (6) arylureas from the rational modification of natural products...
July 7, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28685608/what-s-new-in-small-cell-lung-cancer-extensive-disease-an-overview-on-advances-of-systemic-treatment-in-2016
#6
Andreas Seeber, Christoph Leitner, Kathrin Philipp-Abbrederis, Gilbert Spizzo, Florian Kocher
Systemic therapy options for small cell lung cancer patients with extensive disease remain poor. After an initial response on first-line therapy, virtually all patients develop disease progression. For those who showed an initial response only few therapy options with low response rates are currently available. Until now, many experimental and targeted agents have failed to yield convincing clinical benefits, and new therapy options are clearly warranted for these patients. In this year's oncological congresses, several new therapy strategies, including checkpoint inhibition, showed promising results in ongoing trials...
July 7, 2017: Future Oncology
https://www.readbyqxmd.com/read/28678757/the-therapeutic-potential-of-cell-cycle-targeting-in-multiple-myeloma
#7
REVIEW
Anke Maes, Eline Menu, Kim De Veirman, Ken Maes, Karin Vanderkerken, Elke De Bruyne
Proper cell cycle progression through the interphase and mitosis is regulated by coordinated activation of important cell cycle proteins (including cyclin-dependent kinases and mitotic kinases) and several checkpoint pathways. Aberrant activity of these cell cycle proteins and checkpoint pathways results in deregulation of cell cycle progression, which is one of the key hallmarks of cancer. Consequently, intensive research on targeting these cell cycle regulatory proteins identified several candidate small molecule inhibitors that are able to induce cell cycle arrest and even apoptosis in cancer cells...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28670704/cyclin-k-dependent-regulation-of-aurora-b-affects-apoptosis-and-proliferation-by-induction-of-mitotic-catastrophe-in-prostate-cancer
#8
Sabrina Schecher, Britta Walter, Michael Falkenstein, Stephan Macher-Goeppinger, Philipp Stenzel, Kristina Krümpelmann, Boris Hadaschik, Sven Perner, Glen Kristiansen, Stefan Duensing, Wilfried Roth, Katrin E Tagscherer
Cyclin K plays a critical role in transcriptional regulation as well as cell development. However, the role of Cyclin K in prostate cancer is unknown. Here, we describe the impact of Cyclin K on prostate cancer cells and examine the clinical relevance of Cyclin K as a biomarker for patients with prostate cancer. We show that Cyclin K depletion in prostate cancer cells induces apoptosis and inhibits proliferation accompanied by an accumulation of cells in the G2/M phase. Moreover, knockdown of Cyclin K causes mitotic catastrophe displayed by multinucleation and spindle multipolarity...
July 3, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28668478/preliminary-evidence-of-polymorphisms-of-cell-cycle-regulatory-genes-and-their-roles-in-urinary-tract-urothelial-cancer-susceptibility-and-prognosis-in-a-taiwan-population
#9
Ying-Chu Lin, Tzyh-Chyuan Hour, Yu-Chieh Tsai, Shu-Pin Huang, Wen-Jeng Wu, Chung-Hsin Chen, Yeong-Shiau Pu, Shiu-Dong Chung, Chao-Yuan Huang
OBJECTIVE: Our aims were to investigate the correlations between polymorphisms in the cell cycle regulatory genes (aurora kinase A [AURKA], survivin, p21, and p53) and UC risk and prognosis. PATIENTS AND METHODS: This study recruited 185 patients with UTUC, 46 patients with bladder cancer, and 188 hospital controls. Demographic data and possible confounding factors were collected using a standardized questionnaire. Genotyping was determined by real-time polymerase chain reaction and TaqMan probe methods...
June 28, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28666255/mir-331-3p-and-aurora-kinase-inhibitor-ii-co-treatment-suppresses-prostate-cancer-tumorigenesis-and-progression
#10
Michael R Epis, Keith M Giles, Dianne J Beveridge, Kirsty L Richardson, Patrick A Candy, Lisa M Stuart, Jacqueline Bentel, Ronald J Cohen, Peter J Leedman
RNA-based therapeutics could represent a new avenue of cancer treatment. miRNA 331-3p (miR-331-3p) is implicated in prostate cancer (PCa) as a putative tumor suppressor, but its functional activity and synergy with other anti-tumor agents is largely unknown. We found miR-331-3p expression in PCa tumors was significantly decreased compared to non-malignant matched tissue. Analysis of publicly available PCa gene expression data sets showed miR-331-3p expression negatively correlated with Gleason Score, tumor stage, lymph node involvement and PSA value, and was significantly down regulated in tumor tissue relative to normal prostate tissue...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28664913/kibra-attains-oncogenic-activity-by-repressing-rassf1a
#11
Anuj, Lakshmi Arivazhagan, Rohan Prasad Surabhi, Archana Kanakarajan, Sandhya Sundaram, Ravi Shankar Pitani, Lakmini Mudduwa, Joachim Kremerskothen, Ganesh Venkatraman, Suresh K Rayala
BACKGROUND: KIBRA-initially identified as a neuronal associated protein is now shown to be functionally associated with other tissue types as well. KIBRA interacts with dyenin light chain 1 and this interaction is essential for oestrogen receptor transactivation in breast cancer cells. KIBRA as a substrate of Cdk1, Aurora kinase and ERK plays an important role in regulating cell cycle, cell proliferation and migration. Despite these evidences, the exact role of KIBRA in cancer progression is not known...
June 29, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28662510/the-deubiquitinating-enzyme-usp14-regulates-leukemic-chemotherapy-drugs-induced-cell-apoptosis-by-suppressing-ubiquitination-of-aurora-kinase-b
#12
Chunge Song, Ruojin Ma, Xiaoyu Yang, Sulei Pang
BACKGROUND/AIMS: Aurora kinase B is a mitotic checkpoint kinase that plays a pivotal role in mitosis by ensuring correct chromosome segregation and normal progression through mitosis. Aurora B has been found to be amplified and overexpressed in several types of leukemia. The deubiquitinating enzyme USP14 is one of three proteasome-associated deubiquitinating enzymes and plays critical roles in diverse biological processes including cancer. However, whether USP14 has a role in leukemia cells remains elusive...
June 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28659416/haspin-inhibition-reveals-functional-differences-of-interchromatid-axis-localized-aurkb-and-aurkc
#13
Suzanne M Quartuccio, Shweta S Dipali, Karen Schindler
Aneuploidy is the leading genetic abnormality contributing to infertility, and chromosome segregation errors are common during female mammalian meiosis I (MI). Previous results indicate that haspin kinase regulates resumption of meiosis from prophase arrest, chromosome condensation, and kinetochore-microtubule attachments during early prometaphase of MI. Here, we report that haspin inhibition in late prometaphase I causes acceleration of MI, bypass of the spindle assembly checkpoint (SAC), and loss of interchromatid axis localized Aurora kinase C...
June 28, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28654908/apio-ee-9-is-a-novel-aurora-a-and-b-antagonist-that-suppresses-esophageal-cancer-growth-in-a-pdx-mouse-model
#14
Guoguo Jin, Ke Yao, Zhiping Guo, Zhenjiang Zhao, Kangdong Liu, Fangfang Liu, Hanyong Chen, Dhilli Rao Gorja, Kanamata Reddy, Ann M Bode, Ziming Dong, Zigang Dong
Esophageal cancer (EC) is one of the most aggressive malignancies of the upper aerodigestive tract. Over the past three decades, with advances in surgical techniques and treatment, the prognosis of esophageal cancer has only slowly improved. Thus identifying novel molecular targets and developing therapeutic agents are critical. Aurora kinases play a crucial role in mitosis and selective inhibitors might provide an effective therapeutic treatment for cancer. However, the role of Aurora kinases in EC is still inadequately studied...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28654043/light-mediated-reversible-modulation-of-the-mitogen-activated-protein-kinase-pathway-during-cell-differentiation-and-xenopus-embryonic-development
#15
Vishnu V Krishnamurthy, Aurora J Turgeon, John S Khamo, Payel Mondal, Savanna R Sharum, Wenyan Mei, Jing Yang, Kai Zhang
Kinase activity is crucial for a plethora of cellular functions, including cell proliferation, differentiation, migration, and apoptosis. During early embryonic development, kinase activity is highly dynamic and widespread across the embryo. Pharmacological and genetic approaches are commonly used to probe kinase activities. Unfortunately, it is challenging to achieve superior spatial and temporal resolution using these strategies. Furthermore, it is not feasible to control the kinase activity in a reversible fashion in live cells and multicellular organisms...
June 15, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28647900/breast-cancer-risk-associated-with-genotype-polymorphisms-of-the-aurora-kinase-a-gene-aurka-a-case-control-study-in-a-high-altitude-ecuadorian-mestizo-population
#16
Andrés López-Cortés, Alejandro Cabrera-Andrade, Fabián Oña-Cisneros, Felipe Rosales, Malena Ortiz, Eduardo Tejera, César Paz-Y-Miño
Breast cancer (BC) is the leading cause of cancer related death among women in 2014. The AURKA gene that encodes the protein called Aurora kinase A plays an important role in the progression of the cell cycle, by controlling and promoting the entry into the phase of mitosis. The single nucleotide polymorphism AURKA T91A (rs2273535) (Phe21Ile) has been identified as functional alternator of this kinase, the Ile allele is associated with the occurrence of chromosome segregation errors and tumor progression. Therefore, it is essential to know how BC risk is associated with histopathological characteristics, immunohistochemical characteristics, and genotype polymorphism in a high altitude Ecuadorian mestizo population...
June 24, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28646172/dacomitinib-a-pan-inhibitor-of-erbb-receptors-suppresses-growth-and-invasive-capacity-of-chemoresistant-ovarian-carcinoma-cells
#17
Majid Momeny, Ghazaleh Zarrinrad, Farima Moghaddaskho, Arash Poursheikhani, Ghazaleh Sankanian, Azam Zaghal, Shahab Mirshahvaladi, Fatemeh Esmaeili, Haniyeh Eyvani, Farinaz Barghi, Zahra Sabourinejad, Zivar Alishahi, Hassan Yousefi, Reza Ghasemi, Leila Dardaei, Davood Bashash, Bahram Chahardouli, Ahmad R Dehpour, Javad Tavakkoly-Bazzaz, Kamran Alimoghaddam, Ardeshir Ghavamzadeh, Seyed H Ghaffari
Epithelial ovarian cancer (EOC) is the most lethal gynaecological malignancy worldwide. Development of chemoresistance and peritoneal dissemination of EOC cells are the major reasons for low survival rate. Targeting signal transduction pathways which promote therapy resistance and metastatic dissemination is the key to successful treatment. Members of the ErbB family of receptors are over-expressed in EOC and play key roles in chemoresistance and invasiveness. Despite this, single-targeted ErbB inhibitors have demonstrated limited activity in chemoresistant EOC...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28644734/high-throughput-phenotypic-screening-of-kinase-inhibitors-to-identify-drug-targets-for-polycystic-kidney-disease
#18
Tijmen H Booij, Hester Bange, Wouter N Leonhard, Kuan Yan, Michiel Fokkelman, Steven J Kunnen, Johannes G Dauwerse, Yu Qin, Bob van de Water, Gerard J P van Westen, Dorien J M Peters, Leo S Price
Polycystic kidney disease (PKD) is a prevalent disorder characterized by renal cysts that lead to kidney failure. Various signaling pathways have been targeted to stop disease progression, but most interventions still focus on alleviating PKD-associated symptoms. The mechanistic complexity of the disease, as well as the lack of functional in vitro assays for compound testing, has made drug discovery for PKD challenging. To identify modulators of PKD, Pkd1(-/-) kidney tubule epithelial cells were applied to a scalable and automated 3D cyst culture model for compound screening, followed by phenotypic profiling to determine compound efficacy...
June 1, 2017: SLAS Discovery
https://www.readbyqxmd.com/read/28644436/the-lats1-and-lats2-tumor-suppressors-beyond-the-hippo-pathway
#19
REVIEW
Noa Furth, Yael Aylon
Proper cellular functionality and homeostasis are maintained by the convergent integration of various signaling cascades, which enable cells to respond to internal and external changes. The Dbf2-related kinases LATS1 and LATS2 (LATS) have emerged as central regulators of cell fate, by modulating the functions of numerous oncogenic or tumor suppressive effectors, including the canonical Hippo effectors YAP/TAZ, the Aurora mitotic kinase family, estrogen signaling and the tumor suppressive transcription factor p53...
June 23, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28639950/reactive-oxygen-species-generation-and-increase-in-mitochondrial-copy-number-new-insight-into-the-potential-mechanism-of-cytotoxicity-induced-by-aurora-kinase-inhibitor-azd1152-hqpa
#20
Ali Zekri, Yashar Mesbahi, Samad Ghanizadeh-Vesali, Kamran Alimoghaddam, Ardeshir Ghavamzadeh, Seyed H Ghaffari
Aurora-B kinase overexpression plays important roles in the malignant progression of prostate cancer (PCa). AZD1152-HQPA, as an inhibitor of Aurora-B, has recently emerged as a promising agent for cancer treatment. In this study, we aimed to investigate the effects of AZD1152-HQPA on reactive oxygen species (ROS) generation and mitochondrial function in PCa. We used AZD1152-HQPA (Barasertib), a highly potent and selective inhibitor of Aurora-B kinase. The effects of AZD1152-HQPA on cell viability, DNA content, cell morphology, and ROS production were studied in the androgen-independent PC-3 PCa cell line...
June 21, 2017: Anti-cancer Drugs
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