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Related Concept Videos

EPS and iPS Cells in Disease Research01:21

EPS and iPS Cells in Disease Research

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,...
iPS Cell Differentiation01:22

iPS Cell Differentiation

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.
Inhibition of Cdk Activity02:34

Inhibition of Cdk Activity

The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...

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Related Experiment Video

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iPS cells to model CDKL5-related disorders.

Mariangela Amenduni1, Roberta De Filippis, Aaron Y L Cheung

  • 1Medical Genetics, Department of Biotechnology, University of Siena, Policlinico S. Maria alle Scotte, viale Bracci 2, Siena, Italy.

European Journal of Human Genetics : EJHG
|July 14, 2011
PubMed
Summary

Researchers developed a human cellular model for CDKL5-related disorders using induced pluripotent stem cells (iPSCs). This model allows for in-depth study of neuronal cells affected by CDKL5 mutations, advancing understanding of Rett syndrome variants.

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Area of Science:

  • Neuroscience
  • Genetics
  • Stem Cell Biology

Background:

  • Rett syndrome (RTT) is a leading cause of intellectual disability in females, with mutations in MECP2, FOXG1, or CDKL5 genes.
  • CDKL5 mutations are linked to early-onset seizure variants of RTT and X-linked epileptic encephalopathy in males.
  • The precise function of the CDKL5 kinase protein in neurons remains largely unknown.

Purpose of the Study:

  • To establish a human cellular model for studying CDKL5-related diseases.
  • To investigate disease mechanisms in neurons affected by CDKL5 mutations.
  • To utilize induced pluripotent stem cells (iPSCs) for in vitro modeling.

Main Methods:

  • Derived iPSCs from fibroblasts of patients with CDKL5 mutations (female p.Q347X, male p.T288I).
  • Confirmed X-chromosome inactivation in female iPSCs, allowing for allele-specific analysis.
  • Utilized Array Comparative Genomic Hybridization (Array CGH) to assess genomic integrity.

Main Results:

  • CDKL5-mutated iPSCs were successfully derived and maintained pluripotency.
  • Female iPSCs exhibited stable X-chromosome inactivation, providing internal controls.
  • Array CGH confirmed normal molecular karyotypes and absence of de novo copy number variations.
  • iPSCs could be differentiated into neurons, suitable for disease modeling.

Conclusions:

  • Induced pluripotent stem cells provide a viable platform for modeling CDKL5-related neurological disorders.
  • This cellular model enables direct study of pathogenic mechanisms in affected neuronal cells.
  • The developed iPSC lines serve as valuable tools for future research into CDKL5 function and therapeutic strategies.