{
  "id": 12427281,
  "title": "Pathological tau leads to network hyperexcitability through neuronal-subtype-specific functional impairment",
  "url": "https://urgent.news/2026/10/06/pathological-tau-leads-to-network-hyperexcitability-through-neuronal",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-06T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.10.05.756807v1?rss=1"
  },
  "original_language": "en",
  "account": "Pathological tau, a hallmark of Alzheimer's disease and other tauopathies, causes disruptions in neuronal activity and brain function. The exact mechanisms behind neuronal network dysfunction, however, are still unclear. In a recent study using human stem cell-derived neurons, researchers have discovered that a familial MAPT P301L mutation leads to neuronal network hyperexcitability. This imbalance between excitation and inhibition is caused by subtype-specific tau pathology that alters the interactions between tau and other proteins differently in excitatory and inhibitory neurons. The study reveals that reducing excessive excitation or blocking the influx of calcium resulting from the enhanced P301L tau/AHNAK interaction in inhibitory neurons can alleviate the hyperexcitability. The findings provide new insights into how disease-causing tau mutations disrupt the balance between excitation and inhibition in human neurons, ultimately contributing to network dysfunction.",
  "summary": "Pathological tau disrupts neuronal activity and brain function in Alzheimer s disease and other tauopathies. However, the underlying mechanisms for neuronal network dysfunction remain largely unknown. Using human inducible pluripotent stem cell (iPSC) - derived neurons, we show that the familial MAPT P301L mutation leads to neuronal network hyperexcitability. Imbalanced excitation and inhibition…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}