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Updated: Mar 10, 2026

Implementing Patch Clamp and Live Fluorescence Microscopy to Monitor Functional Properties of Freshly Isolated PKD Epithelium
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Implementing Patch Clamp and Live Fluorescence Microscopy to Monitor Functional Properties of Freshly Isolated PKD Epithelium

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New Insights into the Molecular Mechanisms Targeting Tubular Channels/Transporters in PKD Development

Ming Wu1, Shengqiang Yu1

  • 1Kidney Institute of PLA, Division of Nephrology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China.

Kidney Diseases (Basel, Switzerland)
|December 7, 2016
PubMed

Insights

Polycystic kidney disease (PKD) involves gene mutations affecting ion transport. Dysregulated calcium and cyclic adenosine monophosphate (cAMP)-driven chloride transport are key to PKD development.

Area of Science:

  • Nephrology
  • Molecular Biology
  • Genetics

Background:

  • Polycystic kidney disease (PKD) arises from mutations in PKD1, PKD2, or PKHD1 genes.
  • These genes encode polycystin-1, polycystin-2, and fibrocystin, respectively.
  • Transport and channel function abnormalities precede cyst formation in PKD, highlighting their critical role.

Approach:

  • Review of current knowledge on ion transport mechanisms in PKD.
  • Analysis of calcium and cyclic adenosine monophosphate (cAMP)-driven chloride transport.
  • Discussion of glucose transporters, phosphate transporters, and water channels in PKD pathogenesis.

Key Points:

  • Polycystin-2 functions as a calcium-permeable cation channel.
  • Polycystin-1 and fibrocystin can modulate polycystin-2 channel activity.
  • Abnormal calcium handling and excessive cAMP-dependent fluid secretion are central to PKD.

Conclusions:

  • Understanding transport dysregulation is crucial for PKD research.
  • Targeting ion transport pathways may offer therapeutic strategies for PKD.
  • Further investigation into specific transporters and channels is warranted.
Abstract

Keywords:
ChannelsMolecular mechanismPolycystic kidney diseaseTransporters

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