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https://www.readbyqxmd.com/read/29658714/activation-of-trpv3-by-wood-smoke-particles-and-roles-in-pneumotoxicity
#1
Cassandra Deering-Rice, Nam Nguyen, Zhenyu Lu, James Cox, Darien Shapiro, Erin G Romero, Virginia K Mitchell, Katherine L Burrell, John M Veranth, Christopher A Reilly
Wood/biomass smoke particulate materials (WBSPM) are pneumotoxic, but mechanisms by which these materials affect lung cells are not fully understood. We previously identified transient receptor potential (TRP) ankyrin-1 as a sensor for electrophiles in WBSPM and hypothesized that other TRP channels expressed by lung cells might also be activated by WBSPM, contributing to pneumotoxicity. Screening TRP channel activation by WBSPM using calcium flux assays revealed TRPV3 activation by materials obtained from burning multiple types of wood under fixed conditions...
April 16, 2018: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/29561829/the-role-of-endothelial-ca-2-signaling-in-neurovascular-coupling-a-view-from-the-lumen
#2
REVIEW
Germano Guerra, Angela Lucariello, Angelica Perna, Laura Botta, Antonio De Luca, Francesco Moccia
BACKGROUND: Neurovascular coupling (NVC) is the mechanism whereby an increase in neuronal activity (NA) leads to local elevation in cerebral blood flow (CBF) to match the metabolic requirements of firing neurons. Following synaptic activity, an increase in neuronal and/or astrocyte Ca2+ concentration leads to the synthesis of multiple vasoactive messengers. Curiously, the role of endothelial Ca2+ signaling in NVC has been rather neglected, although endothelial cells are known to control the vascular tone in a Ca2+ -dependent manner throughout peripheral vasculature...
March 21, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29494673/the-bovine-trpv3-as-a-pathway-for-the-uptake-of-na-ca2-and-nh4
#3
Katharina T Schrapers, Gerhard Sponder, Franziska Liebe, Hendrik Liebe, Friederike Stumpff
Absorption of ammonia from the gastrointestinal tract results in problems that range from hepatic encephalopathy in humans to poor nitrogen efficiency of cattle with consequences for the global climate. Previous studies on epithelia and cells from the native ruminal epithelium suggest functional involvement of the bovine homologue of TRPV3 (bTRPV3) in ruminal NH4+ transport. Since the conductance of TRP channels to NH4+ has never been studied, bTRPV3 was overexpressed in HEK-293 cells and investigated using the patch-clamp technique and intracellular calcium imaging...
2018: PloS One
https://www.readbyqxmd.com/read/29436206/olmsted-syndrome-caused-by-a-heterozygous-p-gly568val-missense-mutation-in-trpv3-gene
#4
Ji Young Choi, Song Ee Kim, Sang Eun Lee, Soo Chan Kim
Olmsted syndrome (OS) is a rare congenital skin disorder characterized by severe palmoplantar and periorificial keratoderma, alopecia, onychodystrophy, and severe pruritus. Recently, pathogenic 'gain-of-function' mutations of the transient receptor potential vanilloid 3 gene (TRPV3), which encodes a cation channel involved in keratinocyte differentiation and proliferation, hair growth, inflammation, pain and pruritus, have been identified to cause OS. Due to the rarity, the pattern of inheritance of OS is still unclear...
March 2018: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29359496/the-transient-receptor-potential-vanilloid-3-regulates-hypoxia-mediated-pulmonary-artery-smooth-muscle-cells-proliferation-via-pi3k-akt-signaling-pathway
#5
Qianlong Zhang, Yonggang Cao, Qian Luo, Peng Wang, Pilong Shi, Chao Song, Mingyao E, Jing Ren, Bowen Fu, Hongli Sun
OBJECTVES: Transient receptor potential vanilloid 3 (TRPV3) is a member of the TRP channels family of Ca2+ -permeant cation channels. In this study, we aim to investigate the role of TRPV3 in pulmonary vascular remodeling and PASMCs proliferation under hypoxia. MATERIALS AND METHODS: The expression of TRPV3 was evaluated in patients with pulmonary arterial hypertension (PAH) and hypoxic rats, using hematoxylin and eosin (H&E) and immunohistochemistry. In vitro, MTT assay, flow cytometry, Western blotting and immunofluorescence were performed to investigate the effects of TRPV3 on proliferation of PASMCs...
January 22, 2018: Cell Proliferation
https://www.readbyqxmd.com/read/29317264/the-genetics-of-chronic-itch-gene-expression-in-the-skin-of-patients-with-atopic-dermatitis-and-psoriasis-with-severe-itch
#6
Leigh A Nattkemper, Hong Liang Tey, Rodrigo Valdes-Rodriguez, Helen Lee, Nicholas K Mollanazar, Christian Albornoz, Kristen M Sanders, Gil Yosipovitch
To identify itch-related mediators and receptors that are differentially expressed in pruritic skin, we used RNA sequencing to analyze the complete transcriptome in skin from paired itchy, lesional and nonitchy, nonlesional skin biopsies from 25 patients with atopic dermatitis and 25 patients with psoriasis and site-matched biopsies from 30 healthy controls. This analysis identified 18,000 differentially expressed genes common between itchy atopic and psoriatic skin compared with healthy skin. Of those, almost 2,000 genes were differentially expressed between itchy and nonitchy skin in atopic and psoriatic subjects...
January 6, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29282613/regulation-of-pain-and-itch-by-trp-channels
#7
REVIEW
Carlene Moore, Rupali Gupta, Sven-Eric Jordt, Yong Chen, Wolfgang B Liedtke
Nociception is an important physiological process that detects harmful signals and results in pain perception. In this review, we discuss important experimental evidence involving some TRP ion channels as molecular sensors of chemical, thermal, and mechanical noxious stimuli to evoke the pain and itch sensations. Among them are the TRPA1 channel, members of the vanilloid subfamily (TRPV1, TRPV3, and TRPV4), and finally members of the melastatin group (TRPM2, TRPM3, and TRPM8). Given that pain and itch are pro-survival, evolutionarily-honed protective mechanisms, care has to be exercised when developing inhibitory/modulatory compounds targeting specific pain/itch-TRPs so that physiological protective mechanisms are not disabled to a degree that stimulus-mediated injury can occur...
February 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29249037/transient-receptor-potential-vanilloid-3-trpv3-activation-plays-a-central-role-in-cardiac-fibrosis-induced-by-pressure-overload-in-rats-via-tgf-%C3%AE-1-pathway
#8
Yan Liu, Hanping Qi, Mingyao E, Pilong Shi, Qianhui Zhang, Shuzhi Li, Ye Wang, Yonggang Cao, Yunping Chen, Lina Ba, Jingquan Gao, Wei Huang, Hongli Sun
Cardiac fibrosis is a common pathologic change along with pressure overload. Recent studies indicated that transient receptor potential (TRP) channels played multiple roles in heart. However, the functional role of transient receptor potential vanilloid-3 (TRPV3) in cardiac fibrosis remained unclear. The present study was designed to investigate the relationship between TRPV3 activation and pressure overload-induced cardiac fibrosis. Pressure overload rats were successfully established by abdominal aortic constriction (AAC), and cardiac fibrosis was simulated by 100 nM angiotensin II (Ang II) in neonatal cardiac fibroblasts...
February 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29238714/corneal-nerve-fiber-structure-its-role-in-corneal-function-and-its-changes-in-corneal-diseases
#9
REVIEW
Hiroshi Eguchi, Akio Hiura, Hiroshi Nakagawa, Shunji Kusaka, Yoshikazu Shimomura
Recently, in vivo confocal microscopy is used to examine the human corneal nerve fibers morphology. Corneal nerve fiber architecture and its role are studied in healthy and pathological conditions. Corneal nerves of rats were studied by nonspecific acetylcholinesterase (NsAchE) staining. NsAchE-positive subepithelial (stromal) nerve fiber has been found to be insensitive to capsaicin. Besides, NsAchE-negative but capsaicin-sensitive subbasal nerve (leash) fibers formed thick mesh-like structure showing close interconnections and exhibit both isolectin B4- and transient receptor potential vanilloid channel 1- (TRPV1-) positive...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29175331/involvement-of-trpv3-and-trpm8-ion-channel-proteins-in-induction-of-mammalian-cold-inducible-proteins
#10
Takanori Fujita, Yu Liu, Hiroaki Higashitsuji, Katsuhiko Itoh, Koji Shibasaki, Jun Fujita, Hiroyuki Nishiyama
Cold-inducible RNA-binding protein (CIRP), RNA-binding motif protein 3 (RBM3) and serine and arginine rich splicing factor 5 (SRSF5) are RNA-binding proteins that are transcriptionally upregulated in response to moderately low temperatures and a variety of cellular stresses in mammalian cells. Induction of these cold-inducible proteins (CIPs) is dependent on transient receptor potential (TRP) V4 channel protein, but seems independent of its ion channel activity. We herein report that in addition to TRPV4, TRPV3 and TRPM8 are necessary for the induction of CIPs...
January 1, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29140280/trpv3-channel-in-keratinocytes-in-scars-with-post-burn-pruritus
#11
Chun Wook Park, Hyun Ji Kim, Yong Won Choi, Bo Young Chung, So-Youn Woo, Dong-Keun Song, Hye One Kim
Post-burn pruritus is a common and distressing sequela of burn scars. Empirical antipruritic treatments usually fail to have a satisfactory outcome because of their limited selectivity and possible side effects. Therefore, novel drug targets need to be identified. Here, we aimed to investigate the possible role of protease-activated receptor 2 (PAR2) and transient receptor potential vanniloid 3 (TRPV3), along with the relation of TRPV3 to thymic stromal lymphopoietin (TSLP). Specimens from normal (unscarred) or burn-scarred (with or without pruritus) tissue were obtained from burn patients for this study...
November 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29094727/a-pivotal-role-for-the-activation-of-trpv3-channel-in-itch-sensations-induced-by-the-natural-skin-sensitizer-carvacrol
#12
Ting-Ting Cui, Gong-Xin Wang, Ning-Ning Wei, KeWei Wang
Itching is an intricate, common symptom of dermatologic and systemic diseases, and both TRPV3 and TRPA1 channels have been suggested to function as downstream effector targets. But the relative contributions of TRPV3 and TRPA1 to itch sensation in vivo remain unclear. To dissect the role of TRPA1 or TRPV3 in the cutaneous sensation of itching, we took the advantage of a natural compound carvacrol from oregano, and examined its effect on the induction of scratching behavior in mice. We showed that the intradermal injection of carvacrol (0...
March 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29054601/disruption-of-trpv3-impairs-heat-evoked-vasodilation-and-thermoregulation-a-critical-role-of-cgrp
#13
Berengere Fromy, Audrey Josset-Lamaugarny, Géraldine Aimond, Aurélie Pagnon-Minot, Irène Marics, Glenn J Tattersall, Aziz Moqrich, Dominique Sigaudo-Roussel
Sensing environmental temperature is a key factor allowing individuals to maintain thermal homeostasis via thermoregulatory mechanisms, including changes to skin blood flow. Among transient receptor potential channels, transient receptor potential vanilloid 3 (TRPV3) is a heat-activated cation channel highly expressed in keratinocytes. However, the role of TRPV3 in triggering heat-evoked cutaneous vasodilation is unknown. Using a murine in vivo model of local acute environmental heat exposure in the skin, we show that TRPV3 is involved in the local thermoregulatory control of skin blood flow by initiating the release of calcitonin gene-related peptide and nitric oxide in response to local heating of the skin...
March 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29034580/selective-inhibition-of-trpm2-channel-by-two-novel-synthesized-adpr-analogues
#14
Xiao Luo, Meng Li, Kaiyu Zhan, Wei Yang, Lihe Zhang, KeWei Wang, Peilin Yu, Liangren Zhang
Transient receptor potential melastatin-2 (TRPM2) channel critical for monitoring internal body temperature is implicated in the pathological processes such as neurodegeneration. However, lacking selective and potent TRPM2 inhibitors impedes investigation and validation of the channel as a drug target. To discover novel and selective TRPM2 inhibitors, a series of adenosine 5'-diphosphoribose analogues were synthesized, and their activities and selectivity were evaluated. Whole-cell patch-clamp recordings were employed for screen and evaluation of synthesized compounds...
February 2018: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28964718/activation-of-trpv3-regulates-inflammatory-actions-of-human-epidermal-keratinocytes
#15
Attila Gábor Szöllősi, Nikolett Vasas, Ágnes Angyal, Kornél Kistamás, Péter Pál Nánási, Johanna Mihály, Gabriella Béke, Erika Herczeg-Lisztes, Andrea Szegedi, Naoki Kawada, Takashi Yanagida, Takahiro Mori, Lajos Kemény, Tamás Bíró
Transient receptor potential (TRP) ion channels were first characterized on neurons, where they are classically implicated in sensory functions; however, research in recent decades has shown that many of these channels are also expressed on nonneuronal cell types. Emerging findings have highlighted the role of TRP channels in the skin, where they have been shown to be important in numerous cutaneous functions. Of particular interest is TRPV3, which was first described on keratinocytes. Its functional importance was supported when its gain-of-function mutation was linked to Olmsted syndrome, which is characterized by palmoplantar keratoderma, periorifacial hyperkeratosis, diffuse hypotrichosis and alopecia, and itch...
February 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28945977/trp-channels-as-potential-drug-targets
#16
Magdalene M Moran
The transient receptor potential (TRP) superfamily of channels comprises a diverse group of cation channels. Four TRP channel subunits coassemble to form functional homo- or heterotetramers that pass sodium, calcium, or both in the inward direction. Modulating TRP channel activity provides an important way to impact cellular function by regulating both membrane excitability and intracellular calcium levels. The import of these channels is underscored by the number of genetic diseases caused when they are mutated: Skeletal, skin, sensory, ocular, cardiac, and neuronal disturbances all arise from aberrant TRP function...
January 6, 2018: Annual Review of Pharmacology and Toxicology
https://www.readbyqxmd.com/read/28945920/human-podocytes-express-functional-thermosensitive-trpv-channels
#17
Lídia Ambrus, Balázs Kelemen, Tamás Szabó, Tamás Bíró, Balázs István Tóth
BACKGROUND AND PURPOSE: Heat-sensitive transient receptor potential vanilloid (TRPV) channels are expressed in various epithelial tissues regulating, among else, barrier functions. Their expression is well established in the distal nephron; however, we have no data about their presence in podocytes. As podocytes are indispensable in the formation of the glomerular filtration barrier, we investigated the presence and function of Ca2+ -permeable TRPV1-4 channels in human podocyte cultures...
December 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28924972/targeting-nociceptive-trp-channels-to-treat-chronic-pain-current-state-of-the-field
#18
REVIEW
Magdalene M Moran, Arpad Szallasi
Control of chronic pain is frequently inadequate and/or associated with intolerable adverse effects, prompting a frantic search for new therapeutics and new therapeutic targets. Nearly two decades of preclinical and clinical research supports the involvement of Transient Receptor Potential (TRP) channels in temperature perception, nociception and sensitization. Although there has been considerable excitement around the therapeutic potential of this channel family since the cloning and identification of TRPV1 as the capsaicin receptor more than 20 years ago, only modulators of a few channels have been tested clinically...
September 19, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28905239/expression-and-distribution-of-three-transient-receptor-potential-vanilloid-trpv-channel-proteins-in-human-odontoblast-like-cells
#19
Wen Wen, Kehua Que, Chengcheng Zang, Jing Wen, Guangxu Sun, Zhiying Zhao, Yanzhong Li
Odontoblasts have been suggested to contribute to nociceptive sensation in the tooth via expression of the transient receptor potential (TRP) channels. The TRP channels as a family of nonselective cation permeable channels play an important role in sensory transduction of human. In this study, we examined the expression of transient receptor potential vanilloid-1 (TRPV1), transient receptor potential vanilloid-2 (TRPV2) and transient receptor potential vanilloid-3 (TRPV3) channels in native human odontoblasts (HODs) and long-term cultured human dental pulp cells with odontoblast phenotyoe (LHOPs) obtained from healthy wisdom teeth with the use of immunohistochemistry (IHC), immunofluorescence (IF), quantitative real-time polymerase chain reaction (qRT-PCR),western blotting (WB) and immunoelectron microscopy (IEM) assay...
December 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28839241/leukocyte-trp-channel-gene-expressions-in%C3%A2-patients-with-non-valvular-atrial-fibrillation
#20
Irfan V Düzen, Fethi Yavuz, Ertan Vuruskan, Erhan Saracoglu, Fatih Poyraz, Hüseyin Göksülük, Basar Candemir, Seniz Demiryürek
Atrial fibrillation (AF) is the most common arrhythmia in clinical practice and is a major cause of morbidity and mortality. The upregulation of TRP channels is believed to mediate the progression of electrical remodelling and the arrhythmogenesis of the diseased heart. However, there is limited data about the contribution of the TRP channels to development of AF. The aim of this study was to investigate leukocyte TRP channels gene expressions in non-valvular atrial fibrillation (NVAF) patients. The study included 47 NVAF patients and 47 sex and age matched controls...
August 24, 2017: Scientific Reports
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