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Mouse Footpad Inoculation Model to Study Viral-Induced Neuroinflammatory Responses
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Basic Science and Pathogenesis.

Katie Mao1, Anders Smith1, Veronica Roa1

  • 1Novartis Institute of Biomedical Research, San Diego, CA, USA.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 25, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

Developing advanced Alzheimer's disease (AD) models using induced pluripotent stem cells (iPSCs) reveals critical intercellular communication insights. These complex co-culture systems offer new avenues for discovering AD therapeutics.

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Area of Science:

  • Neuroscience and Stem Cell Biology
  • Alzheimer's Disease Research
  • In Vitro Modeling

Background:

  • Alzheimer's disease (AD) involves complex intercellular communication, difficult to study in humans.
  • Understanding these interactions is crucial for developing novel AD therapeutics.
  • This study aims to create advanced in vitro co-culture models to investigate AD pathology.

Purpose of the Study:

  • To develop complex co-culture models recapitulating the Alzheimer's disease state.
  • To illuminate aberrant intercellular interactions contributing to AD.
  • To identify therapeutic targets for slowing or reversing AD progression.

Main Methods:

  • Deriving neurons, astrocytes, and microglia from induced pluripotent stem cells (iPSCs).
  • Establishing custom co-culture systems with these cell types.
  • Utilizing techniques like RASL-seq, snRNA-seq, and functional assays to analyze cell-cell communication.

    • Main Results:

    • Characterized iPSC-derived neural cells show similarity to human patient data.
    • Astrocyte-neuron co-cultures enhance neuronal maturation and network signaling.
    • Perturbing single cell types in co-cultures induces significant changes in others.

    Conclusions:

    • Preliminary co-culture experiments highlight the interconnectedness of neural cell types in AD.
    • Complex co-culture systems hold significant potential for understanding AD pathology.
    • This research may facilitate the development of effective Alzheimer's disease therapeutics.