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https://www.readbyqxmd.com/read/28315265/sigma-1-receptor-and-ion-channel-dynamics-in-cancer
#1
Olivier Soriani, Raphaël Rapetti-Mauss
SigmaR1 is a multitasking chaperone protein which has mainly been studied in CNS physiological and pathophysiological processes such as pain, memory, neurodegenerative diseases (amyotrophic lateral sclerosis , Parkinson's and Alzheimer's diseases, retinal neurodegeneration ), stroke and addiction . Strikingly, G-protein and ion channels are the main client protein fami lies of this atypical chaperone and the recent advances that have been performed for the last 10 years demonstrate that SigmaR1 is principally activated following tissue injury and disease development to promote cell survival...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28300784/the-molecular-basis-of-toxins-interactions-with-intracellular-signaling-via-discrete-portals
#2
REVIEW
Adi Lahiani, Ephraim Yavin, Philip Lazarovici
An understanding of the molecular mechanisms by which microbial, plant or animal-secreted toxins exert their action provides the most important element for assessment of human health risks and opens new insights into therapies addressing a plethora of pathologies, ranging from neurological disorders to cancer, using toxinomimetic agents. Recently, molecular and cellular biology dissecting tools have provided a wealth of information on the action of these diverse toxins, yet, an integrated framework to explain their selective toxicity is still lacking...
March 16, 2017: Toxins
https://www.readbyqxmd.com/read/28286483/long-term-effects-pathophysiological-mechanisms-and-risk-factors-of-chemotherapy-induced-peripheral-neuropathies-a-comprehensive-literature-review
#3
REVIEW
Nicolas Kerckhove, Aurore Collin, Sakahlé Condé, Carine Chaleteix, Denis Pezet, David Balayssac
Neurotoxic anticancer drugs, such as platinum-based anticancer drugs, taxanes, vinca alkaloids, and proteasome/angiogenesis inhibitors are responsible for chemotherapy-induced peripheral neuropathy (CIPN). The health consequences of CIPN remain worrying as it is associated with several comorbidities and affects a specific population of patients already impacted by cancer, a strong driver for declines in older adults. The purpose of this review is to present a comprehensive overview of the long-term effects of CIPN in cancer patients and survivors...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28283400/vdac-in-cancer
#4
REVIEW
N M Mazure
The voltage-dependent anion channel (VDAC) is a pore located at the outer membrane of the mitochondrion. It allows the entry and exit of numerous ions and metabolites between the cytosol and the mitochondrion. Flux through the pore occurs in an active way: first, it depends on the open or closed state and second, on the negative or positive charges of the different ion species passing through the pore. The flux of essential metabolites, such as ATP, determines the functioning of the mitochondria to a noxious stimulus...
March 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28277613/activation-of-mutated-trpa1-ion-channel-by-resveratrol-in-human-prostate-cancer-associated-fibroblasts-caf
#5
Eric Vancauwenberghe, Lucile Noyer, Sandra Derouiche, Loïc Lemonnier, Pierre Gosset, Laura R Sadofsky, Pascal Mariot, Marine Warnier, Alexandre Bokhobza, Christian Slomianny, Brigitte Mauroy, Jean-Louis Bonnal, Etienne Dewailly, Philippe Delcourt, Laurent Allart, Natalia Prevarskaya, Morad Roudbaraki
Previous studies showed the effects of resveratrol (RES) on several cancer cells, including prostate cancer (PCa) cell apoptosis without taking into consideration the impact of the tumor microenvironment (TME). The TME is composed of cancer cells, endothelial cells, blood cells and cancer-associated fibroblasts (CAF), the main source of growth factors. The latter cells might modify in the TME the impact of RES on tumor cells via secreted factors. Recent data clearly show the impact of CAF on cancer cells apoptosis resistance via secreted factors...
March 9, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28264681/ion-channels-or-aquaporins-as-novel-molecular-targets-in-gastric-cancer
#6
REVIEW
Jianling Xia, Hongqiang Wang, Shi Li, Qinghui Wu, Li Sun, Hongxiang Huang, Ming Zeng
Gastric cancer (GC) is a common disease with few effective treatment choices and poor prognosis, and has the second-highest mortality rates among all cancers worldwide. Dysregulation and/or malfunction of ion channels or aquaporins (AQPs) are common in various human cancers. Furthermore, ion channels are involved in numerous important aspects of the tumor aggressive phonotype, such as proliferation, cell cycle, apoptosis, motility, migration, and invasion. Indeed, by localizing in the plasma membrane, ion channels or AQPs can sense and respond to extracellular environment changes; thus, they play a crucial role in cell signaling and cancer progression...
March 6, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28264064/ion-channel-expression-patterns-in-glioblastoma-stem-cells-with-functional-and-therapeutic-implications-for-malignancy
#7
Julia Pollak, Karan G Rai, Cory C Funk, Sonali Arora, Eunjee Lee, Jun Zhu, Nathan D Price, Patrick J Paddison, Jan-Marino Ramirez, Robert C Rostomily
Ion channels and transporters have increasingly recognized roles in cancer progression through the regulation of cell proliferation, migration, and death. Glioblastoma stem-like cells (GSCs) are a source of tumor formation and recurrence in glioblastoma multiforme, a highly aggressive brain cancer, suggesting that ion channel expression may be perturbed in this population. However, little is known about the expression and functional relevance of ion channels that may contribute to GSC malignancy. Using RNA sequencing, we assessed the enrichment of ion channels in GSC isolates and non-tumor neural cell types...
2017: PloS One
https://www.readbyqxmd.com/read/28258578/aquaporin-targeted-therapeutics-state-of-the-field
#8
Lukmanee Tradtrantip, Bjung-Ju Jin, Xiaoming Yao, Marc O Anderson, Alan S Verkman
Drugs targeting aquaporins have broad potential clinical applications, including cancer, obesity, edema, glaucoma, skin diseases and others. The astrocyte water channel aquaporin-4 is a particularly compelling target because of its role of brain water movement, neuroexcitation and glia scarring, and because it is the target of pathogenic autoantibodies in the neuroinflammatory demyelinating disease neuromyelitis optica . There has been considerable interest in the identification of small molecule inhibitors of aquaporins, with various candidates emerging from testing of known ion transport inhibitors, as well as compound screening and computational chemistry...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28219421/regulation-of-voltage-gated-potassium-channels-attenuates-resistance-of-side-population-cells-to-gefitinib-in-the-human-lung-cancer-cell-line-nci-h460
#9
Seon Young Choi, Hang-Rae Kim, Pan Dong Ryu, So Yeong Lee
BACKGROUND: Side-population (SP) cells that exclude anti-cancer drugs have been found in various tumor cell lines. Moreover, SP cells have a higher proliferative potential and drug resistance than main population cells (Non-SP cells). Also, several ion channels are responsible for the drug resistance and proliferation of SP cells in cancer. METHODS: To confirm the expression and function of voltage-gated potassium (Kv) channels of SP cells, these cells, as well as highly expressed ATP-binding cassette (ABC) transporters and stemness genes, were isolated from a gefitinib-resistant human lung adenocarcinoma cell line (NCI-H460), using Hoechst 33342 efflux...
February 21, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28217814/-effects-of-growth-differentiation-factor-15-gdf-15-on-neurological-systems-cardiovascular-diseases-and-cancer-progression
#10
Dong-Dong Liu, Yan-Ai Mei
Growth differentiation factor-15 (GDF-15) is a member of the transforming growth factor beta superfamily. GDF-15 expression is dramatically upregulated during acute brain injury, cancer, cardiovascular disease, and inflammation, suggesting its potential value as a disease biomarker. It has been suggested that GDF-15 has neurotropic effects in the nervous system. Our studies showed that GDF-15 modulated the expression of neuronal K(+) and Ca(2+) ion channels and increased the release of excitatory transmitter in the medial prefrontal cortex of mice...
February 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28205574/neuropathic-pain
#11
REVIEW
Luana Colloca, Taylor Ludman, Didier Bouhassira, Ralf Baron, Anthony H Dickenson, David Yarnitsky, Roy Freeman, Andrea Truini, Nadine Attal, Nanna B Finnerup, Christopher Eccleston, Eija Kalso, David L Bennett, Robert H Dworkin, Srinivasa N Raja
Neuropathic pain is caused by a lesion or disease of the somatosensory system, including peripheral fibres (Aβ, Aδ and C fibres) and central neurons, and affects 7-10% of the general population. Multiple causes of neuropathic pain have been described and its incidence is likely to increase owing to the ageing global population, increased incidence of diabetes mellitus and improved survival from cancer after chemotherapy. Indeed, imbalances between excitatory and inhibitory somatosensory signalling, alterations in ion channels and variability in the way that pain messages are modulated in the central nervous system all have been implicated in neuropathic pain...
February 16, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28198817/dynamic-properties-of-calcium-activated-chloride-currents-in-xenopus-laevis-oocytes
#12
Ildefonso M De la Fuente, Iker Malaina, Alberto Pérez-Samartín, María Dolores Boyano, Gorka Pérez-Yarza, Carlos Bringas, Álvaro Villarroel, María Fedetz, Rogelio Arellano, Jesus M Cortes, Luis Martínez
Chloride is the most abundant permeable anion in the cell, and numerous studies in the last two decades highlight the great importance and broad physiological role of chloride currents mediated anion transport. They participate in a multiplicity of key processes, as for instance, the regulation of electrical excitability, apoptosis, cell cycle, epithelial secretion and neuronal excitability. In addition, dysfunction of Cl(-) channels is involved in a variety of human diseases such as epilepsy, osteoporosis and different cancer types...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28193528/cellular-acidification-as-a-new-approach-to-cancer-treatment-and-to-the-understanding-and-therapeutics-of-neurodegenerative-diseases
#13
REVIEW
Salvador Harguindey, Daniel Stanciu, Jesús Devesa, Khalid Alfarouk, Rosa Angela Cardone, Julian David Polo Orozco, Pablo Devesa, Cyril Rauch, Gorka Orive, Eduardo Anitua, Sébastien Roger, Stephan J Reshkin
During the last few years, the understanding of the dysregulated hydrogen ion dynamics and reversed proton gradient of cancer cells has resulted in a new and integral pH-centric paradigm in oncology, a translational model embracing from cancer etiopathogenesis to treatment. The abnormalities of intracellular alkalinization along with extracellular acidification of all types of solid tumors and leukemic cells have never been described in any other disease and now appear to be a specific hallmark of malignancy...
February 11, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28185236/regulation-of-osmolality-for-cancer-treatment
#14
REVIEW
Atsushi Shiozaki, Daisuke Ichikawa, Toshiyuki Kosuga, Yoshinori Marunaka, Eigo Otsuji
Disseminated metastasis is associated with a poor prognosis, and its management in the peritoneal or pleural cavity is crucial in the treatment of cancer. Recent studies show that ion and water transporters play important roles in fundamental cellular functions, including the regulation of cell volume that would be involved in the cancer process. Here, we review the evidence for hypotonic treatments of cancer and evaluate the potential of the cellular physiological approach in clinical management. The regulation of extracellular osmolality is a promising method, with several studies demonstrating the cytocidal effects of hypotonic solution on cancer cells...
February 10, 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/28179976/biobetters-from-an-integrated-computational-experimental-approach
#15
REVIEW
Serdar Kuyucak, Veysel Kayser
Biobetters are new drugs designed from existing peptide or protein-based therapeutics by improving their properties such as affinity and selectivity for the target epitope, and stability against degradation. Computational methods can play a key role in such design problems-by predicting the changes that are most likely to succeed, they can drastically reduce the number of experiments to be performed. Here we discuss the computational and experimental methods commonly used in drug design problems, focusing on the inverse relationship between the two, namely, the more accurate the computational predictions means the less experimental effort is needed for testing...
2017: Computational and Structural Biotechnology Journal
https://www.readbyqxmd.com/read/28177286/sloppy-morphological-tuning-in-identified-neurons-of-the-crustacean-stomatogastric-ganglion
#16
Adriane G Otopalik, Marie L Goeritz, Alexander C Sutton, Ted Brookings, Cosmo Guerini, Eve Marder
Neuronal physiology depends on a neuron's ion channel composition and unique morphology. Variable ion channel compositions can produce similar neuronal physiologies across animals. Less is known regarding the morphological precision required to produce reliable neuronal physiology. Theoretical studies suggest that moraphology is tightly tuned to minimize wiring and conduction delay of synaptic events. We utilize high-resolution confocal microscopy and custom computational tools to characterize the morphologies of four neuron types in the stomatogastric ganglion (STG) of the crab Cancer borealis...
February 8, 2017: ELife
https://www.readbyqxmd.com/read/28167212/recruitment-of-rna-molecules-by-connexin-rna-binding-motifs-implication-in-rna-and-dna-transport-through-microvesicles-and-exosomes
#17
REVIEW
Marta Varela-Eirin, Adrian Varela-Vazquez, Marina Rodríguez-Candela Mateos, Anton Vila-Sanjurjo, Eduardo Fonseca, José L Mascareñas, M Eugenio Vázquez, Maria D Mayan
Connexins (Cxs) are integral membrane proteins that form high-conductance plasma membrane channels, allowing communication from cell to cell (via gap junctions) and from cells to the extracellular environment (via hemichannels). Initially described for their role in joining excitable cells (nerve and muscle), gap junctions (GJs) are found between virtually all cells in solid tissues and are essential for functional coordination by enabling the direct transfer of small signalling molecules, metabolites, ions, and electrical signals from cell to cell...
April 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28165322/when-complex-neuronal-structures-may-not-matter
#18
Adriane G Otopalik, Alexander C Sutton, Matthew Banghart, Eve Marder
Much work has explored animal-to-animal variability and compensation in ion channel expression. Yet, little is known regarding the physiological consequences of morphological variability. We quantify animal-to-animal variability in cable lengths (CV = 0.4) and branching patterns in the Gastric Mill (GM) neuron, an identified neuron type with highly-conserved physiological properties in the crustacean stomatogastric ganglion (STG) of Cancer borealis. We examined passive GM electrotonic structure by measuring the amplitudes and apparent reversal potentials (Erevs) of inhibitory responses evoked with focal glutamate photo-uncaging in the presence of TTX...
February 6, 2017: ELife
https://www.readbyqxmd.com/read/28161478/identification-of-tg100-115-as-a-new-and-potent-trpm7-kinase-inhibitor-which-suppresses-breast-cancer-cell-migration-and-invasion
#19
Chiman Song, Yeonju Bae, JinJoo Jun, Hyomin Lee, Nam Doo Kim, Kyung-Bok Lee, Wooyoung Hur, Jae-Yong Park, Taebo Sim
BACKGROUND: Transient receptor potential melastatin 7 (TRPM7) regulates breast cancer cell proliferation, migration, invasion and metastasis in its ion channel- and kinase domain-dependent manner. The pharmacological effects of TRPM7 ion channel inhibitors on breast cancer cells have been studied, but little is known about the effects of TRPM7 kinase domain inhibitors due to lack of potent TRPM7 kinase inhibitors. METHODS: Screening was performed by using TRPM7 kinase assay...
April 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28161459/peptide-microarray-based-characterization-of-antibody-responses-to-host-proteins-after-bacille-calmette-gu%C3%A3-rin-vaccination
#20
REVIEW
Davide Valentini, Martin Rao, Lalit Rane, Sayma Rahman, Rebecca Axelsson-Robertson, Rainer Heuchel, Matthias Löhr, Daniel Hoft, Susanna Brighenti, Alimuddin Zumla, Markus Maeurer
BACKGROUND: Bacille Calmette-Guérin (BCG) is the world's most widely distributed vaccine, used against tuberculosis (TB), in cancer immunotherapy, and in autoimmune diseases due to its immunomodulatory properties. To date, the effect of BCG vaccination on antibody responses to host proteins has not been reported. High-content peptide microarrays (HCPM) offer a unique opportunity to gauge specific humoral immune responses. METHODS: The sera of BCG-vaccinated healthy adults were tested on a human HCPM platform (4953 randomly selected epitopes of human proteins) to detect specific immunoglobulin gamma (IgG) responses...
February 2, 2017: International Journal of Infectious Diseases: IJID
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