Role of pH-sensing receptors in colitis

© 2024. The Author(s)..

Low pH in the gut is associated with severe inflammation, fibrosis, and colorectal cancer (CRC) and is a hallmark of active inflammatory bowel disease (IBD). Subsequently, pH-sensing mechanisms are of interest for the understanding of IBD pathophysiology. Tissue hypoxia and acidosis-two contributing factors to disease pathophysiology-are linked to IBD, and understanding their interplay is highly relevant for the development of new therapeutic options. One member of the proton-sensing G protein-coupled receptor (GPCR) family, GPR65 (T-cell death-associated gene 8, TDAG8), was identified as a susceptibility gene for IBD in a large genome-wide association study. In response to acidic extracellular pH, GPR65 induces an anti-inflammatory response, whereas the two other proton-sensing receptors, GPR4 and GPR68 (ovarian cancer G protein-coupled receptor 1, OGR1), mediate pro-inflammatory responses. Here, we review the current knowledge on the role of these proton-sensing receptors in IBD and IBD-associated fibrosis and cancer, as well as colitis-associated cancer (CAC). We also describe emerging small molecule modulators of these receptors as therapeutic opportunities for the treatment of IBD.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:476

Enthalten in:

Pflugers Archiv : European journal of physiology - 476(2024), 4 vom: 09. Apr., Seite 611-622

Sprache:

Englisch

Beteiligte Personen:

Hausmann, Martin [VerfasserIn]
Seuwen, Klaus [VerfasserIn]
de Vallière, Cheryl [VerfasserIn]
Busch, Moana [VerfasserIn]
Ruiz, Pedro A [VerfasserIn]
Rogler, Gerhard [VerfasserIn]

Links:

Volltext

Themen:

Colitis-associated cancer
EndoMT
Fibrosis
GPR4
GPR65
GPR68
GPR68 protein, human
Hypoxia
Inflammatory bowel disease
Journal Article
OGR1
PH-sensing G protein-coupled receptors
Protons
Receptors, G-Protein-Coupled
Review
TDAG8

Anmerkungen:

Date Completed 11.04.2024

Date Revised 25.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s00424-024-02943-y

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370041623