scholarly journals Is TRPA1 Burning Down TRPV1 as Druggable Target for the Treatment of Chronic Pain?

2019 ◽  
Vol 20 (12) ◽  
pp. 2906 ◽  
Author(s):  
Simona Giorgi ◽  
Magdalena Nikolaeva-Koleva ◽  
David Alarcón-Alarcón ◽  
Laura Butrón ◽  
Sara González-Rodríguez
Keyword(s):  
Chronic Pain ◽  
Clinical Trials ◽  
Transient Receptor Potential ◽  
Receptor Potential ◽  
Trp Channel ◽  
Pharmacological Intervention ◽  
Future Directions ◽  
Cationic Channel ◽  
Transient Receptor ◽  
Noxious Cold

Over the last decades, a great array of molecular mediators have been identified as potential targets for the treatment of chronic pain. Among these mediators, transient receptor potential (TRP) channel superfamily members have been thoroughly studied. Namely, the nonselective cationic channel, transient receptor potential ankyrin subtype 1 (TRPA1), has been described as a chemical nocisensor involved in noxious cold and mechanical sensation and as rivalling TRPV1, which traditionally has been considered as the most important TRP channel involved in nociceptive transduction. However, few TRPA1-related drugs have succeeded in clinical trials. In the present review, we attempt to discuss the latest data on the topic and future directions for pharmacological intervention.

scholarly journals Expression of transient receptor potential (TRP) channel mRNAs in the mouse olfactory bulb

2012 ◽  
Vol 524 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Hong-Wei Dong ◽  
James C. Davis ◽  
ShengYuan Ding ◽  
Qiang Nai ◽  
Fu-Ming Zhou ◽  
...  
Keyword(s):  
Olfactory Bulb ◽  
Transient Receptor Potential ◽  
Receptor Potential ◽  
Trp Channel ◽  
Transient Receptor

scholarly journals Molecular Bases of Multimodal Regulation of a Fungal Transient Receptor Potential (TRP) Channel

2013 ◽  
Vol 288 (21) ◽  
pp. 15303-15317 ◽  
Author(s):  
Makoto Ihara ◽  
Shin Hamamoto ◽  
Yohei Miyanoiri ◽  
Mitsuhiro Takeda ◽  
Masatsune Kainosho ◽  
...  
Keyword(s):  
Transient Receptor Potential ◽  
Receptor Potential ◽  
Trp Channel ◽  
Transient Receptor ◽  
Molecular Bases

scholarly journals TRP Channels as Sensors of Aldehyde and Oxidative Stress

Biomolecules ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1401
Author(s):  
Katharina E. M. Hellenthal ◽  
Laura Brabenec ◽  
Eric R. Gross ◽  
Nana-Maria Wagner
Keyword(s):  
Lipid Peroxidation ◽  
Transient Receptor Potential ◽  
Trp Channels ◽  
Treatment Options ◽  
Receptor Potential ◽  
The Body ◽  
Trp Channel ◽  
Alcoholic Beverages ◽  
Organ Injury ◽  
Transient Receptor

The transient receptor potential (TRP) cation channel superfamily comprises more than 50 channels that play crucial roles in physiological processes. TRP channels are responsive to several exogenous and endogenous biomolecules, with aldehydes emerging as a TRP channel trigger contributing to a cellular cascade that can lead to disease pathophysiology. The body is not only exposed to exogenous aldehydes via tobacco products or alcoholic beverages, but also to endogenous aldehydes triggered by lipid peroxidation. In response to lipid peroxidation from inflammation or organ injury, polyunsaturated fatty acids undergo lipid peroxidation to aldehydes, such as 4-hydroxynonenal. Reactive aldehydes activate TRP channels via aldehyde-induced protein adducts, leading to the release of pro-inflammatory mediators driving the pathophysiology caused by cellular injury, including inflammatory pain and organ reperfusion injury. Recent studies have outlined how aldehyde dehydrogenase 2 protects against aldehyde toxicity through the clearance of toxic aldehydes, indicating that targeting the endogenous aldehyde metabolism may represent a novel treatment strategy. An addition approach can involve targeting specific TRP channel regions to limit the triggering of a cellular cascade induced by aldehydes. In this review, we provide a comprehensive summary of aldehydes, TRP channels, and their interactions, as well as their role in pathological conditions and the different therapeutical treatment options.

scholarly journals Functional characterization of transient receptor potential channels in mouse urothelial cells

2010 ◽  
Vol 298 (3) ◽  
pp. F692-F701 ◽  
Author(s):  
Wouter Everaerts ◽  
Joris Vriens ◽  
Grzegorz Owsianik ◽  
Giovanni Appendino ◽  
Thomas Voets ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Patch Clamp ◽  
Calcium Imaging ◽  
Transient Receptor Potential ◽  
Receptor Potential ◽  
Functional Expression ◽  
Sensory Function ◽  
Trp Channel ◽  
Urothelial Cells ◽  
Transient Receptor

The bladder urothelium is currently believed to be a sensory structure, contributing to mechano- and chemosensation in the bladder. Transient receptor potential (TRP) cation channels act as polymodal sensors and may underlie some of the receptive properties of urothelial cells. However, the exact TRP channel expression profile of urothelial cells is unclear. In this study, we have performed a systematic analysis of the molecular and functional expression of various TRP channels in mouse urothelium. Urothelial cells from control and trpv4−/− mice were isolated, cultured (12–48 h), and used for quantitative real-time PCR, immunocytochemistry, calcium imaging, and whole cell patch-clamp experiments. At the mRNA level, TRPV4, TRPV2, and TRPM7 were the most abundantly expressed TRP genes. Immunohistochemistry showed a clear expression of TRPV4 in the plasma membrane, whereas TRPV2 was more prominent in the cytoplasm. TRPM7 was detected in the plasma membrane as well as cytoplasmic vesicles. Calcium imaging and patch-clamp experiments using TRP channel agonists and antagonists provided evidence for the functional expression of TRPV4, TRPV2, and TRPM7 but not of TRPA1, TRPV1, and TRPM8. In conclusion, we have demonstrated functional expression of TRPV4, TRPV2, and TRPM7 in mouse urothelial cells. These channels may contribute to the (mechano)sensory function of the urothelial layer and represent potential targets for the treatment of bladder dysfunction.

scholarly journals Canonical Transient Receptor Potential (TRPC) Channels in Nociception and Pathological Pain

2020 ◽  
Vol 2020 ◽  
pp. 1-13 ◽  
Author(s):  
Zhi-Chuan Sun ◽  
Sui-Bin Ma ◽  
Wen-Guang Chu ◽  
Dong Jia ◽  
Ceng Luo
Keyword(s):  
Chronic Pain ◽  
Molecular Mechanisms ◽  
Transient Receptor Potential ◽  
Receptor Potential ◽  
Trpc Channels ◽  
Canonical Transient Receptor Potential ◽  
Abnormal Increase ◽  
Pathological Pain ◽  
Transient Receptor ◽  
Underlying Mechanisms

Chronic pathological pain is one of the most intractable clinical problems faced by clinicians and can be devastating for patients. Despite much progress we have made in understanding chronic pain in the last decades, its underlying mechanisms remain elusive. It is assumed that abnormal increase of calcium levels in the cells is a key determinant in the transition from acute to chronic pain. Exploring molecular players mediating Ca2+ entry into cells and molecular mechanisms underlying activity-dependent changes in Ca2+ signaling in the somatosensory pain pathway is therefore helpful towards understanding the development of chronic, pathological pain. Canonical transient receptor potential (TRPC) channels form a subfamily of nonselective cation channels, which permit the permeability of Ca2+ and Na+ into the cells. Initiation of Ca2+ entry pathways by these channels triggers the development of many physiological and pathological functions. In this review, we will focus on the functional implication of TRPC channels in nociception with the elucidation of their role in the detection of external stimuli and nociceptive hypersensitivity.

scholarly journals Human transient receptor potential (TRP) channel expression profiling in carcinogenesis

2015 ◽  
Vol 59 (7-8-9) ◽  
pp. 399-406 ◽  
Author(s):  
Michela Bernardini ◽  
Alessandra Fiorio Pla ◽  
Natalia Prevarskaya ◽  
Dimitra Gkika
Keyword(s):  
Expression Profiling ◽  
Transient Receptor Potential ◽  
Receptor Potential ◽  
Trp Channel ◽  
Channel Expression ◽  
Transient Receptor

Transient receptor potential (TRP) channel function in the reproductive axis

Cell Calcium ◽  
2017 ◽  
Vol 67 ◽  
pp. 138-147 ◽  
Author(s):  
Viktoria Götz ◽  
Sen Qiao ◽  
Andreas Beck ◽  
Ulrich Boehm
Keyword(s):  
Transient Receptor Potential ◽  
Receptor Potential ◽  
Trp Channel ◽  
Channel Function ◽  
Reproductive Axis ◽  
Transient Receptor
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