Kir2.1 channel: Macrophage plasticity in tumor microenvironment.

Al-Sheikh, Umar; Kang, Lijun · Cell Metab · 2022

other · Level V

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Abstract

Diverse ion channels have dysregulated functional expression in the tumor microenvironment (TME). In this issue of Cell Metabolism, Chen et al. reveal that high intratumoral K<sup>+</sup> ions restrict the plasticity of tumor-associated macrophages (TAMs). Inhibition of the Kir2.1 potassium channel induced metabolic reprogramming and repolarization of pro-tumor M2-TAMs to tumoricidal M1-like states.

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