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Updated: Jun 16, 2025
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Implementing Patch Clamp and Live Fluorescence Microscopy to Monitor Functional Properties of Freshly Isolated PKD Epithelium
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Ciliary G-Protein Coupled Receptor Signaling in Polycystic Kidney Disease
Raghad Buqaileh1, Lubna A Alshriem1,2, Wissam AbouAlaiwi1
1Department of Pharmacology and Experimental Therapeutics, University of Toledo, Toledo, OH 43614, USA.
International Journal of Molecular Sciences
|June 13, 2025
Summary
Polycystic kidney disease (PKD) involves faulty primary cilia signaling. Targeting G-protein-coupled receptors (GPCRs) in cilia offers a promising therapeutic strategy for this ciliopathy.
Area of Science:
- Nephrology
- Cell Biology
- Genetics
Background:
- Polycystic kidney disease (PKD) is a genetic ciliopathy impairing renal function.
- Mutations in Pkd1 and Pkd2 genes are primary causes of PKD.
- The primary cilium is crucial for renal homeostasis and cellular signaling.
Purpose of the Study:
- To explore the role of ciliary G-protein-coupled receptors (GPCRs) in PKD.
- To investigate the link between GPCR dysfunction and PKD pathogenesis.
- To evaluate GPCRs as therapeutic targets for PKD.
Main Methods:
- Review of current literature on ciliary GPCRs and PKD.
- Analysis of signaling pathways affected by GPCR dysfunction (mTOR, cAMP, calcium).
- Examination of interactions between GPCRs and Polycystin proteins (PC1, PC2).
Main Results:
- Ciliary GPCRs are vital for renal function and their dysfunction contributes to PKD.
- Altered GPCR signaling exacerbates cyst formation via downstream pathways.
- GPCRs interact with key PKD proteins, highlighting complex disease mechanisms.
Conclusions:
- Targeting ciliary GPCRs represents a promising therapeutic avenue for PKD.
- Modulators of GPCRs may restore ciliary function and slow disease progression.
- Further research into GPCRs offers potential for novel PKD treatments.
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