What is the role of polycystin 1 and polycystin 2 interaction in the etiology of autosomal dominant polycystic kidney disease (ADPKD)?

Updated: Mar 24, 2020
  • Author: Roser Torra, MD, PhD; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

This model involves the participation of polycystin 1 as a mechanical sensor of ciliary bending induced by luminal fluid flow. Bending of the cilium would cause a conformational change in polycystin 1 that would, in turn, activate the polycystin 2–associated Ca2+ channel, increasing the intracellular Ca2+ concentration and triggering intracellular signaling pathways leading to normal kidney development. [14]


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