keyword
MENU ▼
Read by QxMD icon Read
search

Erk2

keyword
https://www.readbyqxmd.com/read/28623314/comparative-transcriptomic-and-proteomic-analyses-provide-insights-into-the-key-genes-involved-in-high-altitude-adaptation-in-the-tibetan-pig
#1
Bo Zhang, Yangzom Chamba, Peng Shang, Zhixiu Wang, Jun Ma, Liyuang Wang, Hao Zhang
Tibetan pigs that inhabit the Tibetan Plateau exhibit striking phenotypic and physiological differences from lowland pigs, and have adapted well to extreme conditions. However, the mechanisms involved in regulating gene expression at high altitude in these animals are not fully understood. In this study, we obtained transcriptomic and proteomic data from the heart tissues of Tibetan and Yorkshire pigs raised in the highlands (TH and YH) and lowlands (TL and YL) via RNA-seq and iTRAQ (isobaric tags for relative and absolute quantitation) analyses, respectively...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28611293/identification-of-molecular-biomarkers-for-pancreatic-cancer-with-mrmr-shortest-path-method
#2
Shuhua Shen, Tuantuan Gui, Chengcheng Ma
The high mortality rate of pancreatic cancer makes it one of the most studied diseases among all cancer types. Many researches have been conducted to understand the mechanism underlying its emergence and pathogenesis of this disease. Here, by using minimum-redundancy-maximum-relevance (mRMR) method, we studied a set of transcriptome data of pancreatic cancer. As we gradually added features to achieve the most accurate classification results of Jackknife, a gene set of 9 genes was identified. They were NHS, SCML2, LAMC2, S100P, COL17A1, AMIGO2, PTPRR, KPNA7 and KCNN4...
May 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28603004/ion-channel-signaling-influences-cellular-proliferation-and-phagocyte-activity-during-axolotl-tail-regeneration
#3
Brandon M Franklin, S Randal Voss, Jeffrey L Osborn
Little is known about the potential for ion channels to regulate cellular behaviors during tissue regeneration. Here, we utilized an amphibian tail regeneration assay coupled with a chemical genetic screen to identify ion channel antagonists that altered critical cellular processes during regeneration. Inhibition of multiple ion channels either partially (anoctamin1/Tmem16a, anoctamin2/Tmem16b, KV2.1, KV2.2, L-type CaV channels and H/K ATPases) or completely (GlyR, GABAAR, KV1.5 and SERCA pumps) inhibited tail regeneration...
June 7, 2017: Mechanisms of Development
https://www.readbyqxmd.com/read/28581888/il17a-augments-autophagy-in-mycobacterium-tuberculosis-infected-monocytes-from-patients-with-active-tuberculosis-in-association-with-the-severity-of-the-disease
#4
Nancy Liliana Tateosian, Joaquín Miguel Pellegrini, Nicolás Oscar Amiano, Agustín Rolandelli, Nicolás Casco, Domingo Juan Palmero, María Isabel Colombo, Verónica Edith García
During mycobacterial infection, macroautophagy/autophagy, a process modulated by cytokines, is essential for mounting successful host responses. Autophagy collaborates with human immune responses against Mycobacterium tuberculosis (Mt) in association with specific IFNG secreted against the pathogen. However, IFNG alone is not sufficient to the complete bacterial eradication, and other cytokines might be required. Actually, induction of Th1 and Th17 immune responses are required for protection against Mt. Accordingly, we showed that IL17A and IFNG expression in lymphocytes from tuberculosis patients correlates with disease severity...
June 5, 2017: Autophagy
https://www.readbyqxmd.com/read/28580314/continuous-or-transient-high-level-of-glucose-exposure-differentially-increases-coronary-artery-endothelial-cell-proliferation-and-human-colon-cancer-cell-proliferation
#5
Yoko Shimoda, Yuko Tagaya, Tsugumichi Saito, Eijiro Yamada, Aya Osaki, Yasuyo Nakajima, Atsushi Ozawa, Tetsurou Satoh, Junichi Okada, Shuichi Okada, Masanobu Yamada
We studied effect of high glucose levels on coronary artery endothelial cell proliferation and human colon cancer cell proliferation. To examine the long-term effect of glucose exposure on cell growth, cells were cultured for 14 days in the absence or presence of 183 mg/dL D-glucose addition in the culture medium. Short effect of elevated glucose levels was examined by addition of 183 mg/dL D-glucose addition in the culture medium for just one hour per day followed by changing the culture to standard medium (5...
2017: Cell Journal
https://www.readbyqxmd.com/read/28579900/imperatorin-protects-h9c2-cardiomyoblasts-cells-from-hypoxia-reoxygenation-induced-injury-through-activation-of-erk-signaling-pathway
#6
Bihong Liao, Ruimian Chen, Feng Lin, Aihuan Mai, Jie Chen, Huimin Li, Shaohong Dong, Zhenglei Xu
BACKGROUND: Imperatorin is a compound found in plants and has been widely used in Chinese medicine for many years. It has many pharmacological effects, including the recently reported anti-apoptotic function, however, the mechanism largely remains unclear. This study is aimed to elucidate the mechanism of Imperatorin's anti-apoptotic function. METHODS: A model of hypoxia and reoxygenation (H/R) treated h9c2 cardiomyoblasts was successfully constructed. The cells were treated with H/R condition, and followed by adding Imperatorin alone, Imperatorin with ERK inhibitor and/or ERK inhibitor alone, to examine the cell viability by Cell Counting Kit-8 assay, cell apoptosis rate by flow cytometry, and ERK expression by Western-blot under different conditions...
May 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28559152/anti-apoptotic-activity-of-japanese-encephalitis-virus-ns5-protein-in-human-medulloblastoma-cells-treated-with-interferon-%C3%AE
#7
Jing-Ru Weng, Chun-Hung Hua, Chao-Hsien Chen, Su-Hua Huang, Ching-Ying Wang, Ying-Ju Lin, Lei Wan, Cheng-Wen Lin
BACKGROUND: Japanese encephalitis virus (JEV) non-structural protein 5 (NS5) exhibits type I interferon (IFN) antagonists, contributing to immune escape, and even inducing viral anti-apoptosis. This study investigated the anti-apoptotic mechanism of JEV NS5 protein on type I IFN-induced apoptosis of human medulloblastoma cells. METHODS: Vector control and NS5-expressing cells were treated with IFN-β, and then harvested for analyzing apoptotic pathways with flow cytometry, Western blotting, subcellular localization, etc...
May 19, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28555276/suppression-of-phosphorylated-mapk-and-caspase-3-by-carbon-dioxide
#8
Yan-Jun Xu, Vijayan Elimban, Naranjan S Dhalla
Although CO2 is produced during the oxidation of different substrates in all types of cells, the role of this gas in the regulation of cellular function is not clearly understood. Since changes in several signal transduction as well as apoptotic, anti-apoptotic, and other proteins are known to modify cellular function, we investigated if some of these proteins are altered upon incubating the rat hind leg skeletal muscle in a medium enriched with CO2 (1000-1200 ppm) for 30 min. CO2 was observed to depress phosphorylated levels of ERK1 (P44) and ERK2 (P42) without affecting the unphosphorylated content of these MAPK proteins...
May 29, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28554535/a-phosphorylation-motif-for-tuneable-helix-stabilisation-in-intrinsically-disordered-proteins-lessons-from-the-sodium-proton-exchanger-1-nhe1
#9
Ruth Hendus-Altenburger, Matteo Lambrughi, Thilde Terkelsen, Stine F Pedersen, Elena Papaleo, Kresten Lindorff-Larsen, Birthe B Kragelund
Intrinsically disordered proteins (IDPs) are involved in many pivotal cellular processes including phosphorylation and signalling. The structural and functional effects of phosphorylation of IDPs remain poorly understood and difficult to predict. Thus, a need exists to identify motifs that confer phosphorylation-dependent perturbation of the local preferences for forming e.g. helical structures as well as motifs that do not. The disordered distal tail of the Na(+)/H(+) exchanger 1 (NHE1) is six-times phosphorylated (S693, S723, S726, S771, T779, S785) by the mitogen activated protein kinase 2 (MAPK1, ERK2)...
May 26, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28554304/ginsenoside-rb1-exerts-antidiabetic-action-on-c2c12-muscle-cells-by-leptin-receptor-signaling-pathway
#10
Mohammad Reza Tabandeh, Seyed Ahmad Hosseini, Maryam Hosseini
CONTEXT: Ginsenoside Rb1 improves insulin sensitivity and glucose uptake in muscle cells via different signaling pathways; however, it is not clear that it has any effect on leptin signaling in skeletal muscle. OBJECTIVES: The aim of this study was to investigate the effect of ginsenoside Rb1 on leptin receptors expression and main signaling pathways of leptin (STAT3, PI3 kinase and ERK kinase) in C2C12 skeletal muscle cells. MATERIALS AND METHODS: C2C12 myotubes were incubated with various concentrations of Rb1 (0...
August 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28522860/involvement-of-fak-erk2-signaling-pathway-in-ckap2-induced-proliferation-and-motility-in-cervical-carcinoma-cell-lines
#11
Qi-Sang Guo, Yu Song, Ke-Qin Hua, Shu-Jun Gao
Cervical carcinoma is the fourth most common cause of death in woman, caused by human papillomavirus (HPV) infections and arising from the cervix. Cytoskeleton-associated protein 2 (CKAP2), also known as tumor-associated microtubule-associated protein, has been linked to tumorigenic effects. In the present study, we screened CKAP2 as a new candidate gene which promotes development of cervical carcinoma, in two independent datasets (TCGA and GSE27678). Results showed that CKAP2 expression was significantly up-regulated in cervical cancerous tissues compared with normal counterparts...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522560/the-effect-of-long-term-maternal-smoking-on-the-offspring-s-lung-health
#12
Suporn Sukjamnong, Yik Lung Chan, Razia Zakarya, Sonia Saad, Pawan Sharma, Rachana Santiyanont, Hui Chen, Brian G G Oliver
Maternal smoking during pregnancy contributes to long-term health problems in offspring, especially respiratory disorders which can manifest in either childhood or adulthood. Receptors for advanced glycation end-products (RAGE) are multi-ligand receptors abundantly localized in the lung, capable of responding to by-products of reactive oxygen species and pro-inflammatory responses. RAGE signalling is a key regulator of inflammation in cigarette smoking-related pulmonary diseases. However, the impact of maternal cigarette smoke exposure on lung RAGE signalling in the offspring is unclear...
May 18, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28512266/activating-mapk1-erk2-mutation-in-an-aggressive-case-of-disseminated-juvenile-xanthogranuloma
#13
Rikhia Chakraborty, Oliver A Hampton, Harshal Abhyankar, Daniel J Zinn, Amanda Grimes, Brooks Skull, Olive Eckstein, Nadia Mahmood, David A Wheeler, Dolores Lopez-Terrada, Tricia L Peters, John M. Hicks, Tarek Elghetany, Robert Krance, Poulikos I Poulikakos, Miriam Merad, Kenneth L McClain, Carl E Allen, Donald W. Parsons
Juvenile xanthogranuloma (JXG) is a rare histiocytic disorder that is usually benign and self-limiting. We present a case of atypical, aggressive JXG harboring a novel mitogen-activated protein kinase (MAPK) pathway mutation in the MAPK1 gene, which encodes mitogen-activated protein kinase 1 or extracellular signal-regulated 2 (ERK2). Our analysis revealed that the mutation results in constitutive ERK activation that is resistant to BRAF or MEK inhibitors but susceptible to an ERK inhibitor. These data highlight the importance of identifying specific MAPK pathway alterations as part of the diagnostic workup for patients with histiocytic disorders rather than initiating empiric treatment with MEK inhibitors...
April 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28507546/extracellular-signal-regulated-kinase-signaling-in-cd4-expressing-cells-inhibits-osteochondromas
#14
Marie Wehenkel, Maripat Corr, Clifford S Guy, Benjamin A Edwards, Ashley H Castellaw, Christopher Calabrese, Gilles Pagès, Jacques Pouysségur, Peter Vogel, Maureen A McGargill
Defects in cartilage homeostasis can give rise to various skeletal disorders including osteochondromas. Osteochondromas are benign bone tumors caused by excess accumulation of chondrocytes, the main cell type of cartilage. The extracellular signal-regulated kinase (ERK) pathway is a major signaling node that functions within chondrocytes to regulate their growth and differentiation. However, it is not known whether the ERK pathway in other cell types regulates cartilage homeostasis. We show here that mice with a germline deficiency of Erk1 and a conditional deletion of Erk2 in cells that express CD4, or expressed CD4 at one point in development, unexpectedly developed bone deformities...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28474232/ets-targeted-therapy-can-it-substitute-for-mek-inhibitors
#15
REVIEW
Osamu Tetsu, Frank McCormick
BACKGROUND: The RAS/MAPK pathway has been intensively studied in cancer. Constitutive activation of ERK1 and ERK2 is frequently found in cancer cells from a variety of tissues. In clinical practice and clinical trials, small molecules targeting receptor tyrosine kinases or components in the MAPK cascade are used for treatment. MEK1 and MEK2 are ideal targets because these enzymes are physiologically important and have narrow substrate specificities and distinctive structural characteristics...
December 2017: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/28471171/characterizing-the-chemical-space-of-erk2-kinase-inhibitors-using-descriptors-computed-from-molecular-dynamics-trajectories
#16
Jeremy Ash, Denis Fourches
Quantitative Structure-Activity Relationship (QSAR) models typically rely on 2D and 3D molecular descriptors to characterize chemicals and forecast their experimental activities. Previously, we showed that even the most reliable 2D QSAR models and structure-based 3D molecular docking techniques were not capable of accurately ranking a set of known inhibitors for the ERK2 kinase, a key player in various types of cancer. Herein, we calculated and analyzed a series of chemical descriptors computed from the molecular dynamics (MD) trajectories of ERK2-ligand complexes...
May 4, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28460635/transcriptomic-profiling-and-quantitative-high-throughput-qhts-drug-screening-of-cdh1-deficient-hereditary-diffuse-gastric-cancer-hdgc-cells-identify-treatment-leads-for-familial-gastric-cancer
#17
Ina Chen, Lesley Mathews-Greiner, Dandan Li, Abisola Abisoye-Ogunniyan, Satyajit Ray, Yansong Bian, Vivek Shukla, Xiaohu Zhang, Raj Guha, Craig Thomas, Berkley Gryder, Athina Zacharia, Joal D Beane, Sarangan Ravichandran, Marc Ferrer, Udo Rudloff
BACKGROUND: Patients with hereditary diffuse gastric cancer (HDGC), a cancer predisposition syndrome associated with germline mutations of the CDH1 (E-cadherin) gene, have few effective treatment options. Despite marked differences in natural history, histopathology, and genetic profile to patients afflicted by sporadic gastric cancer, patients with HDGC receive, in large, identical systemic regimens. The lack of a robust preclinical in vitro system suitable for effective drug screening has been one of the obstacles to date which has hampered therapeutic advances in this rare disease...
May 1, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28453902/lighting-up-kinase-action-in-platelets
#18
Albert Smolenski
Platelet functions are highly regulated by signaling networks involving at least 300 protein kinases [2]. Platelets express members of the mitogen-activated protein kinase (MAPK) family including p42 ERK2 and, at lower concentrations, p44 ERK1. Both ERK isoforms are activated by agonists like von Willebrand factor, collagen, thrombin, ADP and thromboxane A2 [3-7]. ERK activation depends on MAPK kinase (MKK-1 or MEK) and involves Gq, Gi, phospholipase C and Src family kinase signaling [5, 8]. Active ERK has been shown to stimulate thromboxane A2 production [5] and to contribute to platelet aggregation [4, 9]...
April 28, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28436422/rational-design-of-non-resistant-targeted-cancer-therapies
#19
Francisco Martínez-Jiménez, John P Overington, Bissan Al-Lazikani, Marc A Marti-Renom
Drug resistance is one of the major problems in targeted cancer therapy. A major cause of resistance is changes in the amino acids that form the drug-target binding site. Despite of the numerous efforts made to individually understand and overcome these mutations, there is a lack of comprehensive analysis of the mutational landscape that can prospectively estimate drug-resistance mutations. Here we describe and computationally validate a framework that combines the cancer-specific likelihood with the resistance impact to enable the detection of single point mutations with the highest chance to be responsible of resistance to a particular targeted cancer therapy...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28420753/the-kinase-tpl2-activates-erk-and-p38-signaling-to-promote-neutrophilic-inflammation
#20
Kate Senger, Victoria C Pham, Eugene Varfolomeev, Jason A Hackney, Cesar A Corzo, Jenna Collier, Vivian W C Lau, Zhiyu Huang, Kajal Hamidzhadeh, Patrick Caplazi, Ivan Peng, A Francesca Setiadi, Ross Francis, Andres Paler-Martinez, Youngsu C Kwon, Vladimir Ramirez-Carrozzi, Yonglian Sun, Patricia W Grigg, Merone Roose-Girma, Surinder Jeet, Kai H Barck, Anna Pham, Naruhisa Ota, Connie Ha, Jeremy Stinson, Joseph Guillory, Lucinda Tam, Zora Modrusan, Claire Emson, Brent S McKenzie, Michael J Townsend, Richard A D Carano, Søren Warming, Domagoj Vucic, Jason DeVoss, Wyne P Lee, Jennie R Lill, Ali A Zarrin
Tumor progression locus 2 (TPL2; also known as MAP3K8) is a mitogen-activated protein kinase (MAPK) kinase kinase (MAP3K) that phosphorylates the MAPK kinases MEK1 and MEK2 (MEK1/2), which, in turn, activate the MAPKs extracellular signal-regulated kinase 1 (ERK1) and ERK2 (ERK1/2) in macrophages stimulated through the interleukin-1 receptor (IL-1R), Toll-like receptors (TLRs), or the tumor necrosis factor receptor (TNFR). We describe a conserved and critical role for TPL2 in mediating the effector functions of neutrophils through the activation of the p38 MAPK signaling pathway...
April 18, 2017: Science Signaling
keyword
keyword
15251
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"