Scholarlink

<p>Heat nociception involves thermosensors like transient receptor potential channel V1 in dorsal root ganglion (DRG) neurons, but their loss only partially impairs heat sensing, suggesting other mechanisms. Autism frequently involves abnormal pain perception, but its mechanisms remain unclear. Here we show that dedicator of cytokinesis 4 (<i>Dock4</i>), an autism susceptibility gene, is decreased in DRG neurons across multiple pain models via histone H4K8 lactylation. DOCK4 deficiency in sensory neurons increases heat nociception in mice. Mechanistically, DOCK4 interacts with sodium channel Nav1.7 and mediates its trafficking from the membrane to the cytoplasm in DRG neurons. Acting an adaptor protein, DOCK4 binds the motor protein Dynein to form a Dynein/DOCK4/Nav1.7 complex, where Dynein provides the mechanical force for Nav1.7 trafficking. DOCK4 knockdown in sensory neurons also enhances heat nociception in male nonhuman primates. Thus, the Dynein/DOCK4/Nav1.7 complex represents a thermosensor-independent mechanism regulating heat nociception and provides insights into abnormal pain in autism.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Histone lactylation regulates DOCK4 to control heat nociception and supports Dynein-mediated Nav1.7 trafficking

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年8月4日

查看全文
  • Man-Xiu Xie,
  • Ren-Chun Lai,
  • Yi-Bin Xiao,
  • Shi-Yu Zuo,
  • Hao Tang,
  • Xian-Ying Cao,
  • Jin-Kun Liu,
  • Zi-Su Zhou,
  • Shu-Hang Wang,
  • Xiao-Fan Lu,
  • Ying He,
  • Yan Xie,
  • Xiao-Long Zhang

摘要

Heat nociception involves thermosensors like transient receptor potential channel V1 in dorsal root ganglion (DRG) neurons, but their loss only partially impairs heat sensing, suggesting other mechanisms. Autism frequently involves abnormal pain perception, but its mechanisms remain unclear. Here we show that dedicator of cytokinesis 4 (Dock4), an autism susceptibility gene, is decreased in DRG neurons across multiple pain models via histone H4K8 lactylation. DOCK4 deficiency in sensory neurons increases heat nociception in mice. Mechanistically, DOCK4 interacts with sodium channel Nav1.7 and mediates its trafficking from the membrane to the cytoplasm in DRG neurons. Acting an adaptor protein, DOCK4 binds the motor protein Dynein to form a Dynein/DOCK4/Nav1.7 complex, where Dynein provides the mechanical force for Nav1.7 trafficking. DOCK4 knockdown in sensory neurons also enhances heat nociception in male nonhuman primates. Thus, the Dynein/DOCK4/Nav1.7 complex represents a thermosensor-independent mechanism regulating heat nociception and provides insights into abnormal pain in autism.