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June 27, 2026Current Opinion in Nephrology & Hypertension

From K+ sensing to NCC on/off switching: KS-WNK1 as a spatial organizer of WNK signaling

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Authors

LVLaura VergaraJCJosé A. Cabrales-AlcarazJBJessica Paola Bahena-López

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Overview

Review integrates findings on KS-WNK1's role in K+ regulation in the distal nephron, linking spatial organization with signaling.

Key Points

  • The aim is to clarify the function of KS-WNK1 in K+-dependent NCC regulation amidst conflicting phenotypes.
  • Integrated evidence from heterologous systems and multiple mouse models.
  • Assessed NCC activation during K+ depletion and shutdown during K+ repletion.
  • KS-WNK1 enhances NCC activation when K+ is depleted by promoting WNK body condensates assembly.
  • During K+ repletion, KS-WNK1 enables efficient NCC shutdown, enhancing the K+-dependent NCC dynamic range.
  • Identified unresolved questions regarding condensate positioning and phosphatase interactions affecting signaling.

Cite This Study

Vergara et al. (2026) studied this question.

synapsesocial.com/papers/6a3f6922aea7db3c1953ff5fhttps://doi.org/10.1097/mnh.0000000000001206
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Deletion of KS-WNK1 promotes NCC activation by increasing WNK1/4 abundance2024 · 2 citations
  2. 2KS-WNK1 augments the effects of dietary potassium intake on renal sodium chloride reabsorption2025 · 3 citations
  3. 3WNK-SPAK-NCC Cascade Revisited2014 · 97 citations
  4. 4Deletion of Cab39 adaptors results in KS-WNK1 independent accumulation of SPAK in biomolecular condensates2026
  5. 5The interplay between calcineurin inhibitors (CNIs) and WNK bodies2024