C18orf58 Inhibitors

Piezo Type Mechanosensitive Ion Channel Component 2, commonly known as Piezo2, is an integral membrane protein and a mechanotransduction channel that plays a critical role in the sensation of mechanical stimuli. It is encoded by the PIEZO2 gene in humans. Piezo2 is part of the Piezo family of channels, which are distinguished by their large size and include Piezo1, the other well-characterized member.Piezo2 is inherently mechanosensitive, meaning it can convert mechanical forces directly into ionic currents. This capability is essential for various physiological processes, including touch, proprioception (the sense of body position and movement), and vascular and lung function. The protein's structure is characterized by multiple transmembrane domains, forming a propeller-like, trimeric architecture that spans the cell membrane. Upon mechanical stimulation, such as pressure or stretch, Piezo2 undergoes conformational changes that open its central ion-conducting pore, allowing the passage of cations, predominantly calcium ions, into the cell.

The influx of calcium ions triggered by Piezo2 activation initiates a cascade of intracellular events, leading to cellular responses such as neurotransmitter release in sensory neurons, thus contributing to the sense of touch and proprioception. The exact mechanisms by which Piezo2 detects mechanical forces and translates them into channel opening are subjects of ongoing research, with interest in the role of membrane tension and other biophysical factors.Mutations in the PIEZO2 gene have been associated with various medical conditions, such as distal arthrogryposis and Gordon syndrome, which involve abnormalities in joint development and proprioception.