keyword
MENU ▼
Read by QxMD icon Read
search

cancer ion channel

keyword
https://www.readbyqxmd.com/read/28723646/collagen-type-1-promotes-survival-of-human-breast-cancer-cells-by-overexpressing-kv10-1-potassium-and-orai1-calcium-channels-through-ddr1-dependent-pathway
#1
Mehdi Badaoui, Cloé Mimsy-Julienne, Charles Saby, Laurence Van Gulick, Marta Peretti, Pierre Jeannesson, Hamid Morjani, Halima Ouadid-Ahidouch
Collagen type 1 is among the tumor microenvironment (TM) factors, that regulates proliferation, survival, migration and invasion. Ion channels are key players in interactions between tumor cells and TM. Kv10.1 has been shown to play an essential role in breast cancer cell proliferation and migration by permitting Ca2+ influx notably via Orai1. Here, we show that human breast cancer (BC) cells growing, in culture media completely devoid of the serum and seeded on collagen 1 coating, exhibited less apoptotic rate and a decrease in Bax expression when compared to those grown on plastic...
July 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28720769/concentration-dependent-binding-of-small-ligands-to-multiple-saturable-sites-in-membrane-proteins
#2
Letícia Stock, Juliana Hosoume, Werner Treptow
Membrane proteins are primary targets for most therapeutic indications in cancer and neurological diseases, binding over 50% of all known small molecule drugs. Understanding how such ligands impact membrane proteins requires knowledge on the molecular structure of ligand binding, a reasoning that has driven relentless efforts in drug discovery and translational research. Binding of small ligands appears however highly complex involving interaction to multiple transmembrane protein sites featuring single or multiple occupancy states...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28713289/mitochondrial-vdac1-a-key-gatekeeper-as-potential-therapeutic-target
#3
REVIEW
Amadou K S Camara, YiFan Zhou, Po-Chao Wen, Emad Tajkhorshid, Wai-Meng Kwok
Mitochondria are the key source of ATP that fuels cellular functions, and they are also central in cellular signaling, cell division and apoptosis. Dysfunction of mitochondria has been implicated in a wide range of diseases, including neurodegenerative and cardiac diseases, and various types of cancer. One of the key proteins that regulate mitochondrial function is the voltage-dependent anion channel 1 (VDAC1), the most abundant protein on the outer membrane of mitochondria. VDAC1 is the gatekeeper for the passages of metabolites, nucleotides, and ions; it plays a crucial role in regulating apoptosis due to its interaction with apoptotic and anti-apoptotic proteins, namely members of the Bcl-2 family of proteins and hexokinase...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28708947/kv10-1-potassium-channel-from-the-brain-to-the-tumors
#4
Verna Cázares-Ordoñez, Luis A Pardo
<i>KCNH1</i> gene encodes the Kv10.1 (Eag1) ion channel, a member of the EAG (ether-à-go-go) family of voltage-gated potassium channels. Recent studies have demonstrated that <i>KCHN1</i> mutations are implicated in Temple-Baraitser and Zimmermann-Laband syndromes and other forms of developmental deficits that all present with mental retardation and epilepsy, suggesting that Kv10.1 might be important for cognitive development in human. Although Kv10.1 channel is mainly expressed in the mammalian brain, its ectopic expression occurs in 70% of human cancers...
July 14, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28698214/papers-of-note-in-nature547-7661
#5
Annalisa M VanHook
This week's articles highlight progress in predicting T cell receptor specificity; an evolutionarily ancient form of antiviral defense; a mechanism of chemotherapy-induced cell death; metabolic rewiring in cancer cells; and structural insights into activation of a GPCR and of a mechanosensitive ion channel.
July 11, 2017: Science Signaling
https://www.readbyqxmd.com/read/28693898/nanosecond-pulsed-electric-fields-depolarize-transmembrane-potential-via-voltage-gated-k-ca-2-and-trpm8-channels-in-u87-glioblastoma-cells
#6
Ryan C Burke, Sylvia M Bardet, Lynn Carr, Sergii Romanenko, Delia Arnaud-Cormos, Philippe Leveque, Rodney P O'Connor
Nanosecond pulsed electric fields (nsPEFs) have a variety of applications in the biomedical and biotechnology industries. Cancer treatment has been at the forefront of investigations thus far as nsPEFs permeabilize cellular and intracellular membranes leading to apoptosis and necrosis. nsPEFs may also influence ion channel gating and have the potential to modulate cell physiology without poration of the membrane. This phenomenon was explored using live cell imaging and a sensitive fluorescent probe of transmembrane voltage in the human glioblastoma cell line, U87 MG, known to express a number of voltage-gated ion channels...
July 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28679281/lipid-mediated-modulation-of-intracellular-ion-channels-and-redox-state-physio-pathological-implications
#7
Marisa Brini, Luigi Leanza, Ildiko Szabo
<i>Significance</i>: Ion channels play an important role in the regulation of organelle function within the cell, as proven by increasing evidence pointing to a link between altered function of intracellular ion channels and different pathologies ranging from cancer to neurodegenerative diseases, ischemic damage and lysosomal storage diseases. <i>Recent Advances</i>: A link between these pathologies and redox state as well as lipid homeostasis and ion channel function is in the focus of current research...
July 5, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28659615/kca3-1-activation-via-p2y2-purinergic-receptors-promotes-human-ovarian-cancer-cell-skov-3-migration
#8
L Robles-Martínez, E Garay, M G Martel-Gallegos, A Cisneros-Mejorado, D Pérez-Montiel, A Lara, R O Arellano
Disorders in cell signaling mediated by ATP or histamine, activating specific membrane receptors, have been frequently associated with tumorigenesis. Among the elements of response to purinergic (and histaminergic) signaling, ion channel activation controls essential cellular processes in cancer, such as cell proliferation, motility, and death. Here, we studied the effects that ATP had on electrical properties of human ovarian adenocarcinoma cells named SKOV-3. ATP caused increase in intracellular Ca(2+) concentration ([Ca(2+)]i) and, concurrently, it evoked a complex electrical response with a conspicuous outward component...
June 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28626428/molecular-surgery-concept-from-bench-to-bedside-a-focus-on-trpv1-pain-sensing-neurons
#9
REVIEW
László Pecze, Béla Viskolcz, Zoltán Oláh
"Molecular neurosurgery" is emerging as a new medical concept, and is the combination of two partners: (i) a molecular neurosurgery agent, and (ii) the cognate receptor whose activation results in the selective elimination of a specific subset of neurons in which this receptor is endogenously expressed. In general, a molecular surgery agent is a selective and potent ligand, and the target is a specific cell type whose elimination is desired through the molecular surgery procedure. These target cells have the highest innate sensitivity to the molecular surgery agent usually due to the highest receptor density being in their plasma membrane...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28618956/acid-sensing-ion-channels-contribute-to-the-effect-of-extracellular-acidosis-on-proliferation-and-migration-of-a549-cells
#10
Yu Wu, Bo Gao, Qiu-Ju Xiong, Yu-Chan Wang, Da-Ke Huang, Wen-Ning Wu
Acid-sensing ion channels, a proton-gated cation channel, can be activated by low extracellular pH and involved in pathogenesis of some tumors such as glioma and breast cancer. However, the role of acid-sensing ion channels in the growth of lung cancer cell is unclear. In this study, we investigated the expression of acid-sensing ion channels in human lung cancer cell line A549 and their possible role in proliferation and migration of A549 cells. The results show that acid-sensing ion channel 1, acid-sensing ion channel 2, and acid-sensing ion channel 3 are expressed in A549 cells at the messenger RNA and protein levels, and acid-sensing ion channel-like currents were elicited by extracellular acid stimuli...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28614631/trpm4-regulates-akt-gsk3-%C3%AE-activity-and-enhances-%C3%AE-catenin-signaling-and-cell-proliferation-in-prostate-cancer-cells
#11
Alfredo I Sagredo, Eduardo A Sagredo, Claudio Cappelli, Pablo Báez, Andaur M Rodrigo, Constanza Blanco, Julio C Tapia, César Echeverría, Oscar Cerda, Andrés Stutzin, Felipe Simon, Katherine Marcelain, Ricardo Armisén
Increased expression of the TRPM4 channel has been reported to be associated with the progression of prostate cancer. However, the molecular mechanism underlying its effect remains unknown. This work found that decreasing TRPM4 levels leads to the reduced proliferation of PC3 cells. This effect was associated with a decrease in total β-catenin protein levels and its nuclear localization, and a significant reduction in Tcf/Lef transcriptional activity. Moreover, TRPM4 silencing increases the Ser33/Ser37/Thr41 β-catenin phosphorylated population and reduces the phosphorylation of GSK-3β at Ser9, suggesting an increase in β-catenin degradation as the underlying mechanism...
June 14, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28593575/the-role-of-herg1-ion-channels-in-epithelial-mesenchymal-transition-and-the-capacity-of-riluzole-to-reduce-cisplatin-resistance-in-colorectal-cancer-cells
#12
Angelo Fortunato
PURPOSE: The transition of cells from the epithelial to the mesenchymal state (EMT) plays an important role in tumor progression. EMT allows cells to acquire mobility, stem-like behavior and resistance to apoptosis and drug treatment. These features turn EMT into a central process in tumor biology. Ion channels are attractive targets for the treatment of cancer since they play critical roles in controlling a wide range of physiological processes that are frequently deregulated in cancer...
June 7, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28591378/is-there-a-role-for-voltage-gated-na-channels-in-the-aggressiveness-of-breast-cancer
#13
P Rhana, R R Trivelato, P S L Beirão, J S Cruz, A L P Rodrigues
Breast cancer is the most common cancer among women and its metastatic potential is responsible for numerous deaths. Thus, the need to find new targets for improving treatment, and even finding the cure, becomes increasingly greater. Ion channels are known to participate in several physiological functions, such as muscle contraction, cell volume regulation, immune response and cell proliferation. In breast cancer, different types of ion channels have been associated with tumorigenesis. Recently, voltage-gated Na+ channels (VGSC) have been implicated in the processes that lead to increased tumor aggressiveness...
June 5, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28567799/cox-2-selective-inhibitors-celecoxib-and-deracoxib-modulate-trpv3-channels
#14
Stefan Spyra, Anne Meisner, Michael Schaefer, Kerstin Hill
BACKGROUND AND PURPOSE: The transient receptor potential vanilloid 3 channel (TRPV3) is a heat-sensitive ion channel which is predominantly expressed in keratinocytes. TRPV3 is involved in multiple physiological and pathophysiological processes within the skin, including cutaneous nociception, temperature sensation, and the development of itch. The role of TRPV3 in such processes is only poorly understood, therefore, the establishment of selective modulators of TRPV3 channels is highly desirable...
May 31, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28559303/trpc1-is-a-differential-regulator-of-hypoxia-mediated-events-and-akt-signalling-in-pten-deficient-breast-cancer-cells
#15
Iman Azimi, Michael J G Milevskiy, Elke Kaemmerer, Dane Turner, Kunsala T D S Yapa, Melissa A Brown, Erik W Thompson, Sarah J Roberts-Thomson, Gregory R Monteith
Hypoxia is a feature of the tumour microenvironment that promotes invasiveness, resistance to chemotherapeutics and cell survival. Our studies identify the transient receptor potential canonical-1 (TRPC1) ion channel as a key component of responses to hypoxia in breast cancer cells. This regulation includes control of specific epithelial to mesenchymal transition (EMT) events and hypoxia-mediated activation of signalling pathways such as activation of the EGFR, STAT3 and the autophagy marker LC3B, through hypoxia-inducible factor-1α (HIF1α)-dependent and -independent mechanisms...
July 15, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28554310/ion-channel-and-neurotransmitter-modulators-as-electroceutical-approaches-to-the-control-of-cancer
#16
Jack Tuszynski, Tatiana M Tilli, Michael Levin
The activities of individual cells must be tightly coordinated in order to build and maintain complex 3-dimensional body structures during embryogenesis and regeneration. Thus, one way to view cancer is within systems biology as a network disorder affecting the ability of cells to properly interact with a morphodynamic field of instructive signals that keeps proliferation and migration orchestrated toward the anatomical needs of the host organism. One layer of this set of instructive microenvironmental cues is bioelectrical...
May 29, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28543431/the-effect-of-substrate-stiffness-on-cancer-cell-volume-homeostasis
#17
Meng Wang, Na Chai, Baoyong Sha, Manyun Guo, Jian Zhuang, Feng Xu, Fei Li
Existing studies on the mechanism of cell volume regulation are mainly relevant to ion channels and osmosis in extracellular fluid. Recently, accumulating evidence has shown that cellular mechanical microenvironment also influences the cell volume. Herein, we investigated the regulation of substrate stiffness on the cell volume homeostasis of MCF-7 cells and their following migration behaviors. We found that cell volume increases with increasing substrate stiffness, which could be affected by blocking the cell membrane anion permeability and dopamine receptor...
May 23, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28532668/design-synthesis-and-biological-evaluation-of-4-piperazinyl-containing-chidamide-derivatives-as-hdacs-inhibitors
#18
Qingwei Zhang, Bingliu Lu, Jianqi Li
The synthesis and biological evaluation of a variety of 4-piperazinyl-containing Chidamide derivatives is described. Some of these compounds were shown to inhibit HDAC1 with IC50 values below micromolar range, and inhibited proliferation of several human cancer cells, not possessing toxicity to human normal cells and hERG K(+) ion channels. Compound 9g, proved to be the most potent and efficacious derivative in this series, was orally active in an HCT116 xenograft model in vivo.
May 12, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28518134/asic1-and-asic3-contribute-to-acidity-induced-emt-of-pancreatic-cancer-through-activating-ca-2-rhoa-pathway
#19
Shuai Zhu, Hai-Yun Zhou, Shi-Chang Deng, Shi-Jiang Deng, Chi He, Xiang Li, Jing-Yuan Chen, Yan Jin, Zhuang-Li Hu, Fang Wang, Chun-You Wang, Gang Zhao
Extracellular acid can have important effects on cancer cells. Acid-sensing ion channels (ASICs), which emerged as key receptors for extracellular acidic pH, are differently expressed during various diseases and have been implicated in underlying pathogenesis. This study reports that ASIC1 and ASIC3 are mainly expressed on membrane of pancreatic cancer cells and upregulated in pancreatic cancer tissues. ASIC1 and ASIC3 are responsible for an acidity-induced inward current, which is required for elevation of intracellular Ca(2+) concentration ([Ca(2+)]i)...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28480765/targeting-dorsal-root-ganglia-and-primary-sensory-neurons-for-the-treatment-of-chronic-pain
#20
REVIEW
Temugin Berta, Yawar Qadri, Ping-Heng Tan, Ru-Rong Ji
Currently the treatment of chronic pain is inadequate and compromised by debilitating central nervous system side effects. Here we discuss new therapeutic strategies that target dorsal root ganglia (DRGs) in the peripheral nervous system for a better and safer treatment of chronic pain. Areas covered: The DRGs contain the cell bodies of primary sensory neurons including nociceptive neurons. After painful injuries, primary sensory neurons demonstrate maladaptive molecular changes in DRG cell bodies and in their axons...
July 2017: Expert Opinion on Therapeutic Targets
keyword
keyword
84326
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"