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Related Concept Videos

EPS and iPS Cells in Disease Research01:21

EPS and iPS Cells in Disease Research

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Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
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iPS Cell Differentiation01:22

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The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
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Related Experiment Video

Updated: May 10, 2025

An Ex vivo Model of an Oligodendrocyte-directed T-Cell Attack in Acute Brain Slices
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Tau aggregation induces cell death in iPSC-derived neurons.

Hirokazu Tanabe1, Sumihiro Maeda2, Etsuko Sano3

  • 1FUJIFILM Corporation, Bio Science & Engineering Laboratories, Kanagawa, Japan.

Aging Brain
|April 25, 2025
PubMed
Summary

Researchers developed a new human cell model to study tau protein buildup, a key factor in Alzheimer's disease. This model enables faster screening of potential drugs targeting tau aggregation and neuronal death.

Keywords:
AggregationNeuronal cell deathOverexpressionTauiPSC

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An In Vitro Model for Studying Tau Aggregation Using Lentiviral-mediated Transduction of Human Neurons
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Area of Science:

  • Neuroscience
  • Cell Biology
  • Pharmacology

Background:

  • Abnormal tau protein accumulation in the brain is a hallmark of neurodegenerative diseases like Alzheimer's disease (AD).
  • Tau pathology correlates with neuronal cell death and disease progression, making it a significant therapeutic target for AD.
  • Existing models face challenges in rapidly screening tau-targeting therapeutics due to species-specific cellular responses.

Purpose of the Study:

  • To establish a human cellular model for rapid screening of tau-targeting therapeutics.
  • To investigate tau aggregation-dependent neuronal cell death in a human cell system.
  • To validate the utility of the model for assessing neuroprotective compound efficacy.

Main Methods:

  • Overexpression of tau protein in a human cellular platform.
  • Induction of tau aggregation and subsequent neuronal cell death.
  • Assessment of neuroprotective effects of known tau-targeting compounds.

Main Results:

  • Successfully established a human cellular model exhibiting tau aggregation-dependent neuronal cell death within two weeks.
  • Demonstrated the model's capacity to recapitulate key aspects of tau-induced neurodegeneration.
  • Confirmed the neuroprotective efficacy of established tau-targeting compounds in the developed system.

Conclusions:

  • The developed human cellular model effectively recapitulates tauopathy pathogenesis.
  • This platform offers a valuable tool for accelerated drug discovery and screening in tauopathies.
  • The model facilitates the identification of novel therapeutics for neurodegenerative diseases characterized by tau accumulation.