Molecular Mechanisms of Epigenetic Regulation, Inflammation, and Cell Death in ADPKD

Area of Science:

• Nephrology
• Genetics
• Molecular Biology

Background:

• Autosomal dominant polycystic kidney disease (ADPKD) is a genetic disorder caused by mutations in PKD1 and PKD2 genes.
• ADPKD is characterized by progressive kidney cyst growth, leading to end-stage kidney disease (ESKD).
• Disease progression is multifactorial, necessitating a deeper understanding of molecular mechanisms for targeted therapies.

Purpose of the Study:

• To explore the roles of epigenetic modulation, interstitial inflammation, and regulated cell death in ADPKD pathogenesis.
• To investigate the interplay between PKD gene mutations and these molecular processes.
• To establish an interactive model linking genetic mutations to cyst formation and disease progression.

Main Methods:

• Review of current literature on ADPKD molecular mechanisms.
• Analysis of studies investigating epigenetic regulators, inflammatory markers, and cell death pathways (apoptosis, autophagy, ferroptosis) in ADPKD.
• Examination of evidence linking PKD gene mutations to epigenetic and inflammatory dysregulation.

Main Results:

• Epigenetic regulators and inflammatory markers are linked to cyst progression, with inflammation detectable before cyst growth.
• Inflammatory cells like macrophages and T cells are associated with cyst growth and declining renal function.
• The role of regulated cell death in ADPKD cystogenesis remains unclear, with conflicting evidence regarding its impact.

Conclusions:

• PKD gene mutations may directly influence epigenetic mechanisms and inflammatory responses in ADPKD.
• A comprehensive understanding of the interactions between genetic mutations, epigenetics, inflammation, and cell death is crucial for developing effective ADPKD treatments.
• Further research is needed to clarify the precise role of cell death in ADPKD progression.