One protein behind touch, heat, cold, pain and itch: a shared helper comes into view

A brush of fabric, a hot pan, an itch you cannot ignore — they feel utterly different, yet new research says they share a hidden helper. A team led by Bailong Xiao at Tsinghua University in Beijing found that a protein called CRELD1 supports the sodium channels that sensory neurons use to fire their signals; in mice lacking the protein, responses to touch, heat, cold, painful pressure and itch all weakened. The study, published in Nature Neuroscience, identifies CRELD1 as a cross-sensation regulator — the kind of shared mechanism that, years from now, could give drug makers a single target for conditions from chronic pain to persistent itch. First, a basic truth worth marvelling at: five senses of the skin, one quiet assistant behind them all.

SDG 3 · Good health and well-being — Mechanism: tech innovation