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Taste the Pain: The Role of TRP Channels in Pain and Taste Perception

1
School of Nursing, University of Alabama at Birmingham, Birmingham, AL 35294, USA
2
College of Nursing, University of Florida, Gainesville, FL 32611, USA
3
Sensory Science and Metabolism Unit (SenSMet), National Institute of Nursing Research, National Institutes of Health, Bethesda, MD 20892, USA
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2020, 21(16), 5929; https://doi.org/10.3390/ijms21165929
Received: 27 July 2020 / Revised: 12 August 2020 / Accepted: 16 August 2020 / Published: 18 August 2020
(This article belongs to the Section Biochemistry)
Transient receptor potential (TRP) channels are a superfamily of cation transmembrane proteins that are expressed in many tissues and respond to many sensory stimuli. TRP channels play a role in sensory signaling for taste, thermosensation, mechanosensation, and nociception. Activation of TRP channels (e.g., TRPM5) in taste receptors by food/chemicals (e.g., capsaicin) is essential in the acquisition of nutrients, which fuel metabolism, growth, and development. Pain signals from these nociceptors are essential for harm avoidance. Dysfunctional TRP channels have been associated with neuropathic pain, inflammation, and reduced ability to detect taste stimuli. Humans have long recognized the relationship between taste and pain. However, the mechanisms and relationship among these taste–pain sensorial experiences are not fully understood. This article provides a narrative review of literature examining the role of TRP channels on taste and pain perception. Genomic variability in the TRPV1 gene has been associated with alterations in various pain conditions. Moreover, polymorphisms of the TRPV1 gene have been associated with alterations in salty taste sensitivity and salt preference. Studies of genetic variations in TRP genes or modulation of TRP pathways may increase our understanding of the shared biological mediators of pain and taste, leading to therapeutic interventions to treat many diseases. View Full-Text
Keywords: pain; transient receptor potential; TRP channel; taste; genomics; capsaicin pain; transient receptor potential; TRP channel; taste; genomics; capsaicin
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MDPI and ACS Style

Aroke, E.N.; Powell-Roach, K.L.; Jaime-Lara, R.B.; Tesfaye, M.; Roy, A.; Jackson, P.; Joseph, P.V. Taste the Pain: The Role of TRP Channels in Pain and Taste Perception. Int. J. Mol. Sci. 2020, 21, 5929. https://doi.org/10.3390/ijms21165929

AMA Style

Aroke EN, Powell-Roach KL, Jaime-Lara RB, Tesfaye M, Roy A, Jackson P, Joseph PV. Taste the Pain: The Role of TRP Channels in Pain and Taste Perception. International Journal of Molecular Sciences. 2020; 21(16):5929. https://doi.org/10.3390/ijms21165929

Chicago/Turabian Style

Aroke, Edwin N., Keesha L. Powell-Roach, Rosario B. Jaime-Lara, Markos Tesfaye, Abhrarup Roy, Pamela Jackson, and Paule V. Joseph 2020. "Taste the Pain: The Role of TRP Channels in Pain and Taste Perception" International Journal of Molecular Sciences 21, no. 16: 5929. https://doi.org/10.3390/ijms21165929

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