Pharmacology of T2R Mediated Host-Microbe Interactions

Bitter taste receptors (T2Rs) belong to the G protein-coupled receptor superfamily. Humans express 25 T2Rs that are known to detect several bitter compounds including bacterial quorum sensing molecules (QSM). Primarily found to be key receptors for bitter sensation T2Rs are known to play an importan...

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Bibliographic Details
Published inHandbook of experimental pharmacology Vol. 275; p. 177
Main Authors Medapati, Manoj Reddy, Bhagirath, Anjali Y, Singh, Nisha, Chelikani, Prashen
Format Journal Article
LanguageEnglish
Published Germany 01.01.2022
Subjects
Epithelial Cells
Host Microbial Interactions
Humans
Immunity, Innate
Receptors, G-Protein-Coupled
Respiratory System
Taste
Host–microbe interactions
G protein-coupled receptor (GPCR)
Innate immunity
Quorum sensing (QS)
Bitter taste receptor (T2R)
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Summary:Bitter taste receptors (T2Rs) belong to the G protein-coupled receptor superfamily. Humans express 25 T2Rs that are known to detect several bitter compounds including bacterial quorum sensing molecules (QSM). Primarily found to be key receptors for bitter sensation T2Rs are known to play an important role in mediating innate immune responses in oral and extraoral tissues. Several studies have led to identification of Gram-negative and Gram-positive bacterial QSMs as agonists for T2Rs in airway epithelial cells and immune cells. However, the pharmacological characterization for many of the QSM-T2R interactions remains poorly defined. In this chapter, we discuss the extraoral roles including localization of T2Rs in extracellular vesicles, molecular pharmacology of QSM-T2R interactions, role of T2Rs in mediating innate immune responses, and some of the challenges in understanding T2R pharmacology.
ISSN:0171-2004
DOI:10.1007/164_2021_435