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Chronic itch is a debilitating condition with limited treatment options, severely affecting quality of life. The identification of pruriceptors has sparked a growing interest in the therapeutic potential of TRP channels in the context of itch. In this regard, we provided a comprehensive overview of the site-specific expression of TRP channels and their associated functions in response to a range of pruritogens. Although several potent antipruritic compounds that target specific TRP channels have been developed and have demonstrated efficacy in various chronic itch conditions through experimental means, a more thorough understanding of the potential for adverse effects or interactions with other TRP channels or GPCRs is necessary to develop novel and selective therapeutics that target TRP channels for treating chronic itch. This review focuses on the mechanism of itch associated with TRP channels at specific sites, from the skin to the sensory neuron, with the aim of suggesting specific therapeutic targets for treating this condition.
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http://dx.doi.org/10.3390/biom14010107 | DOI Listing |
Physiol Rep
September 2025
Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, HP2, Grenoble, France.
Temperature-sensitive Transient Receptor Potential (TRP) channels contribute to modulating skin vascular tone. Their role in Raynaud's Phenomenon (RP) remains unknown. We aimed to investigate TRPs expression in the skin, along with microvascular reactivity to cooling in patients with primary and secondary RP, compared with healthy subjects.
View Article and Find Full Text PDFJ Leukoc Biol
September 2025
Laboratory of Immunobiology and Ionic Transport Regulation, Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de Julio 965, Villa de San Sebastián, 28045 Colima, México.
Ion channels are integral membrane proteins which facilitate rapid transport of small ions into and out of the cell and between organelles and cytosol. Cytolytic lymphocytes including natural killer (NK) cells principally kill virus-infected and cancer cells by releasing cytolytic granules within the immunological synapse, formed between target and effector cells. This process strongly depends on Ca2+ signaling, which in human NK cells is controlled by the phospholipase C (PLCγ)/inositol-1,4,5-triphospate receptor (IP3R)/calcium release-activated calcium channel (CRAC) axis.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China; Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China. Electronic address:
The thermosensitive transient receptor potential (Thermo-TRP) channel proteins comprise TRPA1, TRPV1-V4, and TRPM8. TRP channels are mainly situated on cellular surfaces and react to a range of external factors, including heat, cold, acidity, osmotic pressure, chemical signals, and flavors, as well as intracellular signals such as Ca, Na, and cytokines. The thermo-TRP channels are associated with many physiological signal pathways, with their distinct molecular structure making them promising drug targets for respiratory diseases.
View Article and Find Full Text PDFFront Pharmacol
August 2025
Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.
Introduction: The α-adrenoceptor (αAR) is involved in the physiopathology of the central nervous system (CNS), but its function in the adult male rat locus coeruleus (LC) has not been fully studied. We aimed to characterize the role of the αAR in the regulation of the firing rate (FR) of LC neurons and to describe the signaling pathways involved.
Methods: We measured, through single-unit extracellular recordings of LC neurons from adult male rats were used to measure the effect of adrenergic agonists in the presence and absence of adrenergic antagonists or inhibitors of several signalling pathways.
Adv Mater
September 2025
Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Shandong University, Jinan, Shandong, 250012, China.
Natural killer (NK) cells can swiftly and efficiently kill tumor cells with low toxicity and show great potential as anticancer agents. However, the hostile tumor microenvironment (TME) reduces the number and functionality of NK cells, leading to tumor progression and the limited therapeutic effect of adoptively transferred NK cells, especially in solid tumors. Here, via mussel-inspired chemistry and targeted antibody modification strategies, functional piezoelectric nanoparticles are designed to target NK cells, named as αCD56-P@BT (for human) or αNK1.
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