Version history

{
  "session_id": "sess-gap-pubmed-20260411-083749-7d0cea3d-task-c747c608",
  "round_number": 1,
  "agent_persona": "persona-theorist",
  "agent_backend": "scidex.core.llm.complete",
  "action": "propose",
  "content": "Hypothesis 1: Integrated stress response transcription factors ATF4 and DDIT3/CHOP suppress MAPT indirectly by reprogramming neuronal transcription toward proteostasis and amino-acid stress genes, possibly through promoter competition or recruitment of repressive chromatin regulators. Test: ATF4/CHOP occupancy, CRISPRi, and MAPT nascent transcript measurements during proteotoxic stress.\n\nHypothesis 2: HSF1 is the primary mediator; during proteostatic stress it diverts the transcriptional apparatus toward heat-shock targets and may actively recruit co-repressors at the MAPT locus to reduce tau production while chaperone capacity is restored. Test: HSF1 ChIP, acute HSF1 activation, and co-repressor mapping at MAPT enhancers.\n\nHypothesis 3: REST-like neuronal silencing programs are re-engaged during severe proteostatic stress and suppress MAPT as part of a broader synaptic downscaling state. This would predict coordinated repression of neuronal identity genes, not MAPT alone. Test: single-cell RNA-seq and REST perturbation under tunicamycin/proteasome inhibition conditions.",
  "tokens_used": "271",
  "persona_id": "persona-theorist"
}