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TRPM3 receptors

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https://www.readbyqxmd.com/read/27834303/single-nucleotide-polymorphisms-and-genotypes-of-transient-receptor-potential-ion-channel-and-acetylcholine-receptor-genes-from-isolated-b-lymphocytes-in-myalgic-encephalomyelitis-chronic-fatigue-syndrome-patients
#1
Sonya Marshall-Gradisnik, Samantha Johnston, Anu Chacko, Thao Nguyen, Peter Smith, Donald Staines
OBJECTIVE: The pathomechanism of chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) is unknown; however, a small subgroup of patients has shown muscarinic antibody positivity and reduced symptom presentation following anti-CD20 intervention. Given the important roles of calcium (Ca(2+)) and acetylcholine (ACh) signalling in B cell activation and potential antibody development, we aimed to identify relevant single nucleotide polymorphisms (SNPs) and genotypes in isolated B cells from CFS/ME patients...
November 10, 2016: Journal of International Medical Research
https://www.readbyqxmd.com/read/27733811/proinflammatory-cytokines-decrease-the-expression-of-genes-critical-for-rpe-function
#2
R Krishnan Kutty, William Samuel, Kaifa Boyce, Aswini Cherukuri, Todd Duncan, Cynthia Jaworski, Chandrasekharam N Nagineni, T Michael Redmond
PURPOSE: Proinflammatory cytokines interferon gamma (IFN-γ), tumor necrosis factor alpha (TNF-α), and interleukin-1 beta (IL-1β) secreted by infiltrating lymphocytes or macrophages may play a role in triggering RPE dysfunction associated with age-related macular degeneration (AMD). Binding of these proinflammatory cytokines to their specific receptors residing on the RPE cell surface can activate signaling pathways that, in turn, may dysregulate cellular gene expression. The purpose of the present study was to investigate whether IFN-γ, TNF-α, and IL-1β have an adverse effect on the expression of genes essential for RPE function, employing the RPE cell line ARPE-19 as a model system...
2016: Molecular Vision
https://www.readbyqxmd.com/read/27727448/impaired-calcium-mobilization-in-natural-killer-cells-from-chronic-fatigue-syndrome-myalgic-encephalomyelitis-patients-is-associated-with-transient-receptor-potential-melastatin-3-ion-channels
#3
T Nguyen, S Johnston, L Clarke, P Smith, D Staines, S Marshall-Gradisnik
Transient receptor potential melastatin subfamily 3 (TRPM3) ion channels play a role in calcium (Ca(2+) ) cell signalling. Reduced TRPM3 protein expression has been identified in chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) patients. However, the significance of TRPM3 and association with intracellular Ca(2+) mobilization has yet to be determined. Fifteen CFS/ME patients (mean age 48·82 ± 9·83 years) and 25 healthy controls (mean age 39·2 ± 12·12 years) were examined. Isolated natural killer (NK) cells were labelled with fluorescent antibodies to determine TRPM3, CD107a and CD69 receptors on CD56(dim) CD16(+) NK cells and CD56(bright) CD16(dim/-) NK cells...
October 11, 2016: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/27614169/endoglin-selectively-modulates-transient-receptor-potential-channel-expression-in-left-and-right-heart-failure
#4
Kevin J Morine, Vikram Paruchuri, Xiaoying Qiao, Mark Aronovitz, Gordon S Huggins, David DeNofrio, Michael S Kiernan, Richard H Karas, Navin K Kapur
INTRODUCTION: Transient receptor potential (TRP) channels are broadly expressed cation channels that mediate diverse physiological stimuli and include canonical (TRPC), melastatin (TRPM), and vanilloid (TRPV) subtypes. Recent studies have implicated a role for TRPC6 channels as an important component of signaling via the cytokine, transforming growth factor beta 1 (TGFβ1) in right (RV) or left ventricular (LV) failure. Endoglin (Eng) is a transmembrane glycoprotein that promotes TRPC6 expression and TGFβ1 activity...
August 21, 2016: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/27464700/expression-of-transient-receptor-potential-channels-in-the-purified-human-pancreatic-%C3%AE-cells
#5
Francesco Marabita, Md Shahidul Islam
OBJECTIVE: Members of the transient receptor potential (TRP) channels are involved in mediating the electrical excitability and stimulus-secretion coupling in the pancreatic β-cells. The expression and the relative abundance of different TRP channels in the human β-cells are unknown. The objective of this study was to examine the expression of the TRP channels and their relative abundance in the human β-cell. METHODS: RNA sequencing data obtained from human islets, fluorescence-activated cell sorting-purified human β-cell and human pancreatic acinar cells were analyzed...
July 25, 2016: Pancreas
https://www.readbyqxmd.com/read/27438705/the-dual-regulatory-role-of-mir-204-in-cancer
#6
Tianqi Li, Hongjie Pan, Runsheng Li
MicroRNAs (miRNAs) are a group of endogenous, small (about 22 nucleotides) non-coding RNAs which negatively regulate gene expressions. As one of them, miR-204 originates from the sixth intron of the transient receptor potential melastatin 3 (TRPM3) gene. Therefore, expression of miR-204 is under the control of the TRPM3 promoter and regulated by genetic and epigenetic mechanisms. miR-204 has been found to play the important roles in development of eyes and adipogenesis. Its pathological functions have been observed in a few diseases including pulmonary arterial hypertension, diabetes, and various types of cancers...
July 20, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27433342/diclofenac-a-nonsteroidal-anti-inflammatory-drug-is-an-antagonist-of-human-trpm3-isoforms
#7
Hiroka Suzuki, Eiji Sasaki, Ayumi Nakagawa, Yukiko Muraki, Noriyuki Hatano, Katsuhiko Muraki
The effects of diclofenac (Dic), an acetic acid derivative-type nonsteroidal anti-inflammatory drug, were examined on the function of transient receptor potential (TRP) melastatin (TRPM) 3 (TRPM3) in human embryonic kidney 293 cell-line (HEK293) cells with recombinant human TRPM3 isoforms (TRPM31325, TRPM3-3, TRPM3-9, and TRPM3-S) and in a neuroblastoma cell line human neuroblastoma IMR-32 cells (IMR-32 cells) derived from human peripheral neurons. TRPM3 responses evoked by pregnenolone sulfate (PregS) were effectively inhibited by Dic in a concentration-dependent manner in Ca(2+) measurement and electrophysiological assays...
June 2016: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/27356187/activation-of-gene-transcription-via-cim0216-a-synthetic-ligand-of-transient-receptor-potential-melastatin-3-trpm3-channels
#8
Sandra Rubil, Gerald Thiel
Several compounds have been proposed to stimulate TRPM3 Ca(2+) channels. We recently showed that stimulation of TRPM3 channels with pregnenolone sulfate activated the transcription factor AP-1, while other proposed TRPM3 ligands (nifedipine, D-erythro-sphingosine) exhibited either no or TRPM3-independent effects on gene transcription. Here, we have analyzed the transcriptional activity of CIM0216, a synthetic TRPM3 ligand proposed to have a higher potency and affinity for TRPM3 than pregnenolone sulfate. The results show that CIM0216 treatment of HEK293 cells expressing TRPM3 channels activated AP-1 and stimulated the transcriptional activation potential of c-Jun and c-Fos, 2 basic region leucine zipper transcription factors that constitute AP-1...
June 29, 2016: Channels
https://www.readbyqxmd.com/read/27328745/direct-modulation-of-trpm4-and-trpm3-channels-by-the-phospholipase-c-inhibitor-u73122
#9
Michael G Leitner, Niklas Michel, Marc Behrendt, Marlen Dierich, Sandeep Dembla, Bettina U Wilke, Maik Konrad, Moritz Lindner, Johannes Oberwinkler, Dominik Oliver
BACKGROUND AND PURPOSE: Signalling through phospholipase C (PLC) controls many cellular processes. Much information on the relevance of this important pathway has been derived from pharmacological inhibition of the enzymatic activity of PLC. We found that the most frequently employed PLC inhibitor, U73122, activates endogenous ionic currents in widely used cell lines. Given the extensive use of U73122 in research, we set out to identify these U73122-sensitive ion channels. EXPERIMENTAL APPROACH: We performed detailed biophysical analysis of the U73122-induced currents in frequently used cell lines...
August 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27308495/regulation-of-autophagy-by-two-products-of-one-gene-trpm3-and-mir-204
#10
Nicolas G Cost, Maria F Czyzyk-Krzeska
In clear cell renal cell carcinoma (ccRCC), oncogenic autophagy dependent on microtubule-associated protein 1 light chain 3 α and β (LC3A and LC3B) is stimulated by activity of the transient receptor potential melastatin 3 (TRPM3) channel through multiple complementary mechanisms. The Von Hippel-Lindau (VHL) tumor suppressor represses this oncogenic autophagy in a coordinated manner through the activity of miR-204, which is expressed from intron 6 of the gene encoding TRPM3. TRPM3 represents an actionable target for ccRCC treatment...
October 2015: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/27245705/novel-identification-and-characterisation-of-transient-receptor-potential-melastatin-3-ion-channels-on-natural-killer-cells-and-b-lymphocytes-effects-on-cell-signalling-in-chronic-fatigue-syndrome-myalgic-encephalomyelitis-patients
#11
T Nguyen, D Staines, B Nilius, P Smith, S Marshall-Gradisnik
BACKGROUND: Transient receptor potential melastatin 3 (TRPM3) cation channels are ubiquitously expressed by multiple cells and have an important regulatory role in calcium-dependent cell signalling to help maintain cellular homeostasis. TRPM3 protein expression has yet to be determined on Natural Killer (NK) cells and B lymphocytes. Multiple single nucleotide polymorphisms have been reported in TRPM3 genes from isolated peripheral blood mononuclear cells, NK and B cells in Chronic fatigue syndrome/Myalgic encephalomyelitis (CFS/ME) patients and have been proposed to correlate with illness presentation...
May 31, 2016: Biological Research
https://www.readbyqxmd.com/read/27227024/trpm3-in-temperature-sensing-and-beyond
#12
REVIEW
Katharina Held, Thomas Voets, Joris Vriens
TRPM3, also known as melastatin 2 (MLSN2), LTRPC3 (long TRPC3) and KIAA1616, is a member of the TRPM subfamily of transient receptor potential (TRP) ion channels. The channel was originally identified as a volume-regulated ion channel that can be activated upon reduction of the extracellular osmolality. Later, the channel was proposed to be involved in the modulation of insulin release in pancreatic islets. However, new evidence has uncovered a role of TRPM3 as a thermosensitive nociceptor channel implicated in the detection of noxious heat...
April 2015: Temperature: Multidisciplinary Biomedical Journal
https://www.readbyqxmd.com/read/27099524/natural-killer-cells-and-single-nucleotide-polymorphisms-of-specific-ion-channels-and-receptor-genes-in-myalgic-encephalomyelitis-chronic-fatigue-syndrome
#13
Sonya Marshall-Gradisnik, Teilah Huth, Anu Chacko, Samantha Johnston, Pete Smith, Donald Staines
AIM: The aim of this paper was to determine natural killer (NK) cytotoxic activity and if single nucleotide polymorphisms (SNPs) and genotypes in transient receptor potential (TRP) ion channels and acetylcholine receptors (AChRs) were present in isolated NK cells from previously identified myalgic encephalomyelitis (ME)/chronic fatigue syndrome (CFS) patients. SUBJECTS AND METHODS: A total of 39 ME/CFS patients (51.69±2 years old) and 30 unfatigued controls (47...
2016: Application of Clinical Genetics
https://www.readbyqxmd.com/read/26974325/transient-receptor-potential-melastatin-3-trpm3-mediates-nociceptive-like-responses-in-hydra-vulgaris
#14
Valentina Malafoglia, Lorenzo Traversetti, Floriano Del Grosso, Massimiliano Scalici, Filomena Lauro, Valeria Russo, Tiziana Persichini, Daniela Salvemini, Vincenzo Mollace, Massimo Fini, William Raffaeli, Carolina Muscoli, Marco Colasanti
The ability of mammals to feel noxious stimuli lies in a heterogeneous group of primary somatosensory neurons termed nociceptors, which express specific membrane receptors, such as the Transient Receptor Potential (TRP) family. Here, we show that one of the most important nociceptive-like pathways is conserved in the freshwater coelenterate Hydra vulgaris, the most primitive organism possessing a nervous system. In particular, we found that H. vulgaris expresses TRPM3, a nociceptor calcium channel involved in the detection of noxious heat in mammals...
2016: PloS One
https://www.readbyqxmd.com/read/26708603/data-driven-analysis-of-trp-channels-in-cancer-linking-variation-in-gene-expression-to-clinical-significance
#15
Yu Rang Park, Jung Nyeo Chun, Insuk So, Hwa Jung Kim, Seunghee Baek, Ju-Hong Jeon, Soo-Yong Shin
BACKGROUND: Experimental evidence has suggested that transient receptor potential (TRP) channels play a crucial role in tumor biology. However, clinical relevance and significance of TRP channels in cancer remain largely unknown. MATERIALS AND METHODS: We applied a data-driven approach to dissect the expression landscape of 27 TRP channel genes in 14 types of human cancer using International Cancer Genome Consortium data. RESULTS: TRPM2 was found overexpressed in most tumors, whereas TRPM3 was broadly down-regulated...
January 2016: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/26655382/stimulation-dependent-gating-of-trpm3-channel-in-planar-lipid-bilayers
#16
Kunitoshi Uchida, Lusine Demirkhanyan, Swapna Asuthkar, Alejandro Cohen, Makoto Tominaga, Eleonora Zakharian
The transient receptor potential melastatin (TRPM)-3 channel is critical for various physiologic processes. In somatosensory neurons, TRPM3 has been implicated in temperature perception and inflammatory hyperalgesia, whereas in pancreatic β-cells the channel has been linked to glucose-induced insulin release. As a typical representative of the TRP family, TRPM3 is highly polymodal. In cells, it is activated by heat and chemical agonists, including pregnenolone sulfate (PS) and nifedipine (Nif). To define the nuances of TRPM3 channel activity and its modulators, we succeeded in incorporating the TRPM3 protein into planar lipid bilayers...
March 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/26546534/association-of-trpm-channel-gene-polymorphisms-with-systemic-sclerosis
#17
Serdar Oztuzcu, Ahmet M Onat, Yavuz Pehlivan, Fatma Alibaz-Oner, Salim Donmez, Gozde Y Cetin, Servet Yolbas, Ibrahim Bozgeyik, Neslihan Yilmaz, Metin Ozgen, Yonca Cagatay, Bunyamin Kisacik, Suleyman S Koca, Omer Nuri Pamuk, Mehmet Sayarlioglu, Haner Direskeneli, Abdullah T Demiryurek
BACKGROUND/AIM: Systemic sclerosis (SSc) is an inflammatory disease characterized by vascular abnormalities and fibrosis. The aim of the present study was to investigate the possible role of transient receptor potential melastatin (TRPM) channel genes in the susceptibility and phenotype expression of SSc. MATERIALS AND METHODS: A total of 339 patients with SSc and 302 healthy controls were studied. Genomic DNA was extracted from leukocytes of the peripheral blood, and 25 single nucleotide polymorphisms in the TRPM channel genes were analyzed by the BioMark HD dynamic array system...
November 2015: In Vivo
https://www.readbyqxmd.com/read/26493679/creb-ap-1-ternary-complex-factors-and-map-kinases-connect-transient-receptor-potential-melastatin-3-trpm3-channel-stimulation-with-increased-c-fos-expression
#18
Sandra Rubil, Oliver G Rössler, Gerald Thiel
BACKGROUND AND PURPOSE: The rise in intracellular Ca(2+) stimulates the expression of the transcription factor c-Fos. Depending on the mode of entry of Ca(2+) into the cytosol, distinct signal transducers and transcription factors are required. Here, we have analysed the signalling pathway connecting a Ca(2+) influx via activation of transient receptor potential melastatin-3 (TRPM3) channels with enhanced c-Fos expression. EXPERIMENTAL APPROACH: Transcription of c-Fos promoter/reporter genes that were integrated into the chromatin via lentiviral gene transfer was analysed in HEK293 cells overexpressing TRPM3...
January 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/26388966/thermosensitive-transient-receptor-potential-trp-channel-agonists-and-their-role-in-mechanical-thermal-and-nociceptive-sensations-as-assessed-using-animal-models
#19
A H Klein, Minh Trannyguen, Christopher L Joe, Carstens M Iodi, E Carstens
INTRODUCTION: The present paper summarizes research using animal models to investigate the roles of thermosensitive transient receptor potential (TRP) channels in somatosensory functions including touch, temperature and pain. We present new data assessing the effects of eugenol and carvacrol, agonists of the warmth-sensitive TRPV3, on thermal, mechanical and pain sensitivity in rats. METHODS: Thermal sensitivity was assessed using a thermal preference test, which measured the amount of time the animal occupied one of two adjacent thermoelectric plates set at different temperatures...
August 2015: Chemosensory Perception
https://www.readbyqxmd.com/read/26303477/is-the-carotid-body-a-metabolic-monitor
#20
M Shirahata, W-Y Tang, M-K Shin, V Y Polotsky
The carotid body is a multi-modal sensor and it has been debated if it senses low glucose. We have hypothesized that the carotid body is modified by some metabolic factors other than glucose and contributes to whole body glucose metabolism. This study examined the roles of insulin, leptin and transient receptor potential (TRP) channels on carotid sinus nerve (CSN) chemoreceptor discharge. In agreement with other studies, CSN activity was not modified by low glucose. Insulin did not affect the CSN hypoxic response...
2015: Advances in Experimental Medicine and Biology
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