keyword
MENU ▼
Read by QxMD icon Read
search

signaling pathway

keyword
https://www.readbyqxmd.com/read/28088793/hnrnp-l-mediates-bladder-cancer-progression-by-inhibiting-apoptotic-signaling-and-enhancing-mapk-signaling-pathways
#1
Daojun Lv, Huayan Wu, Rongwei Xing, Fangpeng Shu, Bin Lei, Chengyong Lei, Xumin Zhou, Bo Wan, Yu Yang, Liren Zhong, Xiangming Mao, Yaguang Zou
Heterogeneous nuclear ribonucleoprotein L (hnRNP-L) is a promoter of various kinds of cancers, but its actions in bladder cancer (BC) are unclear. In this study, we investigated the function and the underlying mechanism of hnRNP-L in bladder carcinogenesis. Our results demonstrated that enhanced hnRNP-L expression in BC tissues was associated with poor overall survival of BC patients. Depletion of hnRNP-L significantly suppressed cell proliferation in vitro and inhibited xenograft tumor growth in vivo. Furthermore, downregulation of hnRNP-L resulted in G1-phase cell cycle arrest and enhanced apoptosis accompanied by inhibition of EMT and cell migration...
January 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28088788/dual-syk-jak-inhibition-overcomes-ibrutinib-resistance-in-chronic-lymphocytic-leukemia-cerdulatinib-but-not-ibrutinib-induces-apoptosis-of-tumor-cells-protected-by-the-microenvironment
#2
Ailin Guo, Pin Lu, Greg Coffey, Pamela Conley, Anjali Pandey, Y Lynn Wang
Ibrutinib (BTK inhibitor) has generated remarkable responses in CLL. However, the drug, to a large extent, does not cause cell death directly and does not eradicate CLL malignant clones. Inability to eradicate CLL has fostered resistance generation. Once patients become resistant, they do poorly with a median survival of 3-4 months. Novel therapeutic strategies are needed to prevent resistance, improve treatment outcome and ultimately cure the disease. Herein, we explore dual targeting of the BCR and JAK-STAT pathways with a novel single agent, cerdulatinib, which selectively inhibits both SYK (a BCR component) and JAK kinases...
January 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28088761/amplification-of-unscheduled-dna-synthesis-signal-enables-fluorescence-based-single-cell-quantification-of-transcription-coupled-nucleotide-excision-repair
#3
Franziska Wienholz, Wim Vermeulen, Jurgen A Marteijn
Nucleotide excision repair (NER) comprises two damage recognition pathways: global genome NER (GG-NER) and transcription-coupled NER (TC-NER), which remove a wide variety of helix-distorting lesions including UV-induced damage. During NER, a short stretch of single-stranded DNA containing damage is excised and the resulting gap is filled by DNA synthesis in a process called unscheduled DNA synthesis (UDS). UDS is measured by quantifying the incorporation of nucleotide analogues into repair patches to provide a measure of NER activity...
January 13, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28088675/involvement-of-water-channel-aquaporin-5-in-h2s-induced-pulmonary-edema
#4
Chunyang Xu, Lei Jiang, Yuxia Zou, Jingjing Xing, Hao Sun, Baoli Zhu, Hengdong Zhang, Jun Wang, Jinsong Zhang
Acute exposure to hydrogen sulfide (H2S) poses a significant threat to life, and the lung is one of the primary target organs of H2S. However, the mechanisms involved in H2S-induced acute pulmonary edema are poorly understood. This study aims to investigate the effects of H2S on the expression of water channel aquaporin 5 (AQP5) and to elucidate the signaling pathways involved in AQP5 regulation. In an in vivo study, C57BL6 mice were exposed to sub-lethal concentrations of inhaled H2S, and histological injury of the lungs and ultrastructure injury of the epithelial cells were evaluated...
December 30, 2016: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28088671/melatonin-attenuates-titanium-particle-induced-osteolysis-via-activation-of-wnt-%C3%AE-catenin-signaling-pathway
#5
Zichuan Ping, Xuanyang Hu, Liangliang Wang, Jiawei Shi, Yunxia Tao, Xiexing Wu, Zhenyang Hou, Xiaobin Guo, Wen Zhang, Huilin Yang, Yaozeng Xu, Zhirong Wang, Dechun Geng
: Wear debris-induced inhibition of bone regeneration and extensive bone resorption were common features in peri-prosthetic osteolysis (PPO). Here, we investigated the effect of melatonin on titanium particle-stimulated osteolysis in a murine calvariae model and mouse-mesenchymal-stem cells (mMSCs) culture system. Melatonin inhibited titanium particle-induced osteolysis and increased bone formation at osteolytic sites, confirmed by radiological and histomorphometric data. Furthermore, osteoclast numbers decreased dramatically in the low- and high-melatonin administration mice, as respectively, compared with the untreated animals...
January 11, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28088670/fibrin-hydrogels-induce-mixed-dorsal-ventral-spinal-neuron-identities-during-differentiation-of-human-induced-pluripotent-stem-cells
#6
John M Edgar, Meghan Robinson, Stephanie M Willerth
: We hypothesized that generating spinal motor neurons (sMNs) from human induced pluripotent stem cell (hiPSC)-derived neural aggregates (NAs) using a chemically-defined differentiation protocol would be more effective inside of 3D fibrin hydrogels compared to 2D poly-L-ornithine(PLO)/laminin-coated tissue culture plastic surfaces. We performed targeted RNA-Seq using next generation sequencing to determine the substrate-specific differences in gene expression that regulate cell phenotype...
January 11, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28088659/altered-cerebral-insulin-response-in-transgenic-mice-expressing-the-epsilon-4-allele-of-the-human-apolipoprotein-e-gene
#7
Marie-Thérèse Traversy, Milène Vandal, Cyntia Tremblay, Marine Tournissac, Ariane Giguère-Rancourt, A David Bennett, Frédéric Calon
Apolipoprotein E epsilon-4 (APOEε4 or APOE4), an allelic variation of the APOE gene, not only increases the risk of developing the late-onset form of Alzheimer's disease (AD), but also influences the outcome of treatment. Indeed, data from clinical studies show that the beneficial effect of insulin on cognition is blunted in APOE4 carriers. To investigate how APOE impacts insulin response, we assessed the effects of an acute insulin injection in APOE3- and APOE4-targeted replacement mice that respectively express the human APOE3 or APOE4 isoform instead of the endogenous murine ApoE protein...
November 30, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28088622/reactive-oxygen-species-and-cancer-paradox-to-promote-or-to-suppress
#8
REVIEW
Sehamuddin Galadari, Anees Rahman, Siraj Pallichankandy, Faisal Thayyullathil
Reactive oxygen species (ROS), a group of highly reactive ions and molecules, are increasingly being appreciated as powerful signaling molecules involved in the regulation of a variety of biological processes. Indeed, their role is continuously being delineated in a variety of pathophysiological conditions. For instance, cancer cells are shown to have increased ROS levels in comparison to their normal counterparts. This is partly due to an enhanced metabolism and mitochondrial dysfunction in cancer cells. The escalated ROS generation in cancer cells contributes to the biochemical and molecular changes necessary for the tumor initiation, promotion and progression, as well as, tumor resistance to chemotherapy...
January 11, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28088611/lactobacillus-paracasei-modulates-lps-induced-inflammatory-cytokine-release-by-monocyte-macrophages-via-the-up-regulation-of-negative-regulators-of-nf-kappab-signaling-in-a-tlr2-dependent-manner
#9
Ke-Yi Sun, Dong-Hua Xu, Chao Xie, Susan Plummer, James Tang, Xiao Fan Yang, Xiao Hui Ji
The application of the probiotic lactobacillus is suggested in the treatment of some inflammatory diseases of intestines due to its potential ability to attenuate inflammation. However, the mechanism is not completely understood. In PBMCs, Lactobacillus paracasei (L. Paracasei) down-regulated the LPS-induced production of TNF-α and IL-6. Using a macrophage-like differentiated THP-1 cell line induced by PMA, we investigated the effect of L. paracasei on the production of pro-inflammatory cytokines by monocyte-macrophages...
January 12, 2017: Cytokine
https://www.readbyqxmd.com/read/28088536/targeting-sonic-hedgehog-signaling-in-neurological-disorders
#10
REVIEW
Sita Sharan Patel, Sunil Tomar, Diksha Sharma, Neeraj Mahindroo, Malairaman Udayabanu
Sonic hedgehog (Shh) signaling influences neurogenesis and neural patterning during the development of central nervous system. Dysregulation of Shh signaling in brain leads to neurological disorders like autism spectrum disorder, depression, dementia, stroke, Parkinson's diseases, Huntington's disease, locomotor deficit, epilepsy, demyelinating disease, neuropathies as well as brain tumors. The synthesis, processing and transport of Shh ligand as well as the localization of its receptors and signal transduction in the central nervous system has been carefully reviewed...
January 11, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28088520/palmitic-acid-increases-invasiveness-of-pancreatic-cancer-cells-aspc-1-through-tlr4-ros-nf-%C3%AE%C2%BAb-mmp-9-signaling-pathway
#11
Makena J Binker-Cosen, Daniel Richards, Brenda Oliver, Herbert Y Gaisano, Marcelo G Binker, Laura I Cosen-Binker
Pancreatic cancer (PC) is an aggressive malady with proclivity for early metastasis. Overexpression of toll-like receptor 4 (TLR4) in pancreatic ductal adenocarcinoma, the most common type of pancreatic malignancy, correlates to tumor size, lymph node involvement, venous invasion and pathological stage. Lipopolysaccharides (LPS) are natural TLR4 ligands that have been shown to increase the invasive ability of PC cells. However, rapid inactivation of circulating LPS and low systemic absorption of inhaled LPS from the bronchoalveolar compartment make other agonists such as saturated fatty acids more suitable to be considered for TLR4-related cell invasiveness...
January 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28088493/apoptosis-induced-by-the-methanol-extract-of-salvia-miltiorrhiza-bunge-in-non-small-cell-lung-cancer-through-pten-mediated-inhibition-of-pi3k-akt-pathway
#12
Yin-Tao Ye, Wei Zhong, Pei Sun, Dong Wang, Chen Wang, Li-Min Hu, Jun-Qiang Qian
ETHNOPHARMACOLOGICAL RELEVANCE: Salvia miltiorrhiza Bunge, a well-known traditional Chinese medicinal (TCM) plant, has been used to treat cardiovascular diseases since thousands of years. Many studies have reported that the active component tanshinones displayed a variety of biological activities: antithrombous, antiplatelet aggregation, antioxidant and antitumor promoting. But the mechanism of how the active components working still need to be clarified. The anti-tumor effect of compounds of tanshinone (CTN), the methanol extract of Salvia miltiorrhiza Bunge roots, was investigated...
January 11, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28088487/adenosine-receptors-and-caffeine-in-retinopathy-of-prematurity
#13
REVIEW
Jiang-Fan Chen, Shuya Zhang, Rong Zhou, Zhenlang Lin, Xiaohong Cai, Jing Lin, Yuqin Huo, Xiaoling Liu
Retinopathy of prematurity (ROP) is a major cause of childhood blindness in the world and is caused by oxygen-induced damage to the developing retinal vasculature, resulting in hyperoxia-induced vaso-obliteration and subsequent delayed retinal vascularization and hypoxia-induced pathological neovascularization driven by vascular endothelial growth factor (VEGF) signaling pathway in retina. Current anti-VEGF therapy has shown some effective in a clinical trial, but is associated with the unintended effects on delayed eye growth and retinal vasculature development of preterm infants...
January 11, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28088485/semantic-attributes-are-encoded-in-human-electrocorticographic-signals-during-visual-object-recognition
#14
Kyle Rupp, Matthew Roos, Griffin Milsap, Carlos Caceres, Christopher Ratto, Mark Chevillet, Nathan E Crone, Michael Wolmetz
Non-invasive neuroimaging studies have shown that semantic category and attribute information are encoded in neural population activity. Electrocorticography (ECoG) offers several advantages over non-invasive approaches, but the degree to which semantic attribute information is encoded in ECoG responses is not known. We recorded ECoG while patients named objects from 12 semantic categories and then trained high-dimensional encoding models to map semantic attributes to spectral-temporal features of the task-related neural responses...
January 11, 2017: NeuroImage
https://www.readbyqxmd.com/read/28088479/three-dimensional-structure-of-full-length-ntrx-an-unusual-member-of-the-ntrc-family-of-response-regulators
#15
Ignacio Fernández, Irina Cornaciu, Mariela Del Carmen Carrica, Emiko Uchikawa, Guillaume Hoffmann, Rodrigo Sieira, José Antonio Márquez, Fernando A Goldbaum
Bacteria sense and adapt to environmental changes using two-component systems (TCS). These signaling pathways are formed by a histidine kinase (HK) that phosphorylates a response regulator (RR), which finally modulates the transcription of target genes. The bacterium Brucella abortus codes for a TCS formed by the HK NtrY and the RR NtrX that participates in sensing low oxygen tension and in generating an adaptive response. NtrX is a modular protein with REC, AAA+ and DNA binding domains, an architecture that classifies it among the NtrC subfamily of RRs...
January 11, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28088467/stat3-signaling-mediates-tumour-resistance-to-egfr-targeted-therapeutics
#16
Ahmad A Zulkifli, Fiona H Tan, Tracy L Putoczki, Stanley S Stylli, Rodney B Luwor
Several EGFR inhibitors are currently undergoing clinical assessment or are approved for the clinical management of patients with varying tumour types. However, treatment often results in a lack of response in many patients. The majority of patients that initially respond eventually present with tumours that display acquired resistance to the original therapy. A large number of receptor tyrosine and intracellular kinases have been implicated in driving signaling that mediates this tumour resistance to anti-EGFR targeted therapy, and in a few cases these discoveries have led to overall changes in prospective tumour screening and clinical practice (K-RAS in mCRC and EGFR T790M in NSCLC)...
January 11, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28088449/the-role-of-sumoylation-in-ageing-and-senescent-decline
#17
REVIEW
Andrea Princz, Nektarios Tavernarakis
Posttranslational protein modifications are playing crucial roles in essential cellular mechanisms. SUMOylation is a reversible posttranslational modification of specific target proteins by the attachment of a small ubiquitin-like protein. Although the mechanism of conjugation of SUMO to proteins is analogous to ubiquitination, it requires its own, specific set of enzymes. The consequences of SUMOylation are widely variable, depending on the physiological state of the cell and the attached SUMO isoform. Accumulating recent findings have revealed a prominent role of SUMOylation in molecular pathways that govern senescence and ageing...
January 11, 2017: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/28088409/genome-wide-association-analysis-and-pathways-enrichment-for-lactation-persistency-in-canadian-holstein-cattle
#18
D N Do, N Bissonnette, P Lacasse, F Miglior, M Sargolzaei, X Zhao, E M Ibeagha-Awemu
Lactation persistency (LP), defined as the rate of declining milk yield after milk peak, is an economically important trait for dairy cattle. Improving LP is considered a good alternative method for increasing overall milk production because it does not cause the negative energy balance and other health issues that cows experience during peak milk production. However, little is known about the biology of LP. A genome-wide association study (GWAS) and pathway enrichment were used to explore the genetic mechanisms underlying LP...
January 11, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28088384/the-signalling-mechanisms-of-a-novel-mitochondrial-complex-i-inhibitor-prevent-lipid-accumulation-and-attenuate-tnf-%C3%AE-induced-insulin-resistance-in-vitro
#19
Siobhán Leonard, Laura M Tobin, John B C Findlay
RTC-1 has recently been identified as a member of a new class of anti-diabetic compounds acting through the inhibition of complex I of the mitochondrial respiratory chain (NADH:ubiquinone oxidoreductase) to improve glucose handling and inhibit weight gain in mice fed a high-fat diet (HFD). The exact mechanism by which the reduced activity of NADH:ubiquinone oxidoreductase, in response to RTC-1, promotes these improved metabolic parameters remains to be established. Through extensive in vitro analysis, new molecular insights into these downstream signalling pathways have been obtained...
January 11, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28088365/stem-cells-for-als-an-overview-of-possible-therapeutic-approaches
#20
REVIEW
Joanna Czarzasta, Aleksandra Habich, Tomasz Siwek, Adam Czapliński, Wojciech Maksymowicz, Joanna Wojtkiewicz
Amyotrophic lateral sclerosis (ALS) is an unusual, fatal, neurodegenerative disorder leading to the loss of motor neurons. After diagnosis, the average lifespan ranges from 3 to 5 years, and death usually results from respiratory failure. Although the pathogenesis of ALS remains unclear, multiple factors are thought to contribute to the progression of ALS, such as network interactions between genes, environmental exposure, impaired molecular pathways and many others. The neuroprotective properties of neural stem cells (NSCs) and the paracrine signaling of mesenchymal stem cells (MSCs) have been examined in multiple pre-clinical trials of ALS with promising results...
January 11, 2017: International Journal of Developmental Neuroscience
keyword
keyword
97334
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"