The Post-Translational Modification Networking in WNK-Centric Hypertension Regulation and Electrolyte Homeostasis

Biomedicines. 2022 Sep 2;10(9):2169. doi: 10.3390/biomedicines10092169.

Abstract

The with-no-lysine (WNK) kinase family, comprising four serine-threonine protein kinases (WNK1-4), were first linked to hypertension due to their mutations in association with pseudohypoaldosteronism type II (PHAII). WNK kinases regulate crucial blood pressure regulators, SPAK/OSR1, to mediate the post-translational modifications (PTMs) of their downstream ion channel substrates, such as sodium chloride co-transporter (NCC), epithelial sodium chloride (ENaC), renal outer medullary potassium channel (ROMK), and Na/K/2Cl co-transporters (NKCCs). In this review, we summarize the molecular pathways dysregulating the WNKs and their downstream target renal ion transporters. We summarize each of the genetic variants of WNK kinases and the small molecule inhibitors that have been discovered to regulate blood pressure via WNK-triggered PTM cascades.

Keywords: ENaC; NCC; NKCCs; PHAII; ROMK; SPAK/OSR1; UMOD; WNK kinase; blood pressure regulation; post-translational modifications.

Publication types

  • Review

Grants and funding

This research was funded by the Ministry of Science and Technology (MOST 110-2320-B-075-008), Taipei Veterans General Hospital (V111B-016 and V111B-022), Yen Tjing Ling Medical Foundation (CI-111-23 and CI-111-32), and Joint Projects of National Yang Ming Chiao Tung University and Cheng-Hsin General Hospital (CY11012 and CY11114), Taiwan.