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. Author manuscript; available in PMC: 2023 Apr 1.
Published in final edited form as: Hypertension. 2022 Feb 3;79(4):706–716. doi: 10.1161/HYPERTENSIONAHA.121.16492

Figure 3: Pendrin may regulate ENaC through changes in ATP secretion.

Figure 3:

Pendrin gene ablation reduces H+-ATPase abundance in type B intercalated cells, which increases intracellular ATP content and connexin 30-mediated ATP secretion. Luminal ATP acts on principal cell apical membrane purinergic receptors to stimulate calcium release, which increases prostaglandin E2 production (PGE2) and thereby reduces ENaC abundance and function.