The Frontiers and Challenges of Piezo Channels in Brain Function: Insights into Mechanotransduction, Technological Hurdles, and Future Directions

The Piezo family of mechanosensitive ion channels plays a pivotal role in translating mechanical stimuli into biological responses. In the context of the brain, Piezo channels, especially Piezo1, are crucial for neurogenesis, synaptic plasticity, and cognitive function. Astrocytes, neurons, and vascular cells express Piezo channels, which mediate mechanotransduction pathways that are integral for brain health. Despite the expanding knowledge of Piezo1's roles, there are significant challenges in fully understanding its mechanisms in the brain. This review explores the frontiers of Piezo research in brain function, discusses the complexity of cellular mechanics, and examines the technological limitations in applying mechanotransduction principles to brain science. Additionally, we address the biases in current models, future research directions, and the potential for overcoming these challenges.