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Related Experiment Videos

Reprogramming fibroblasts to express T-cell functions using cell extracts.

Anne-Mari Håkelien1, Helga B Landsverk, James M Robl

  • 1Institute of Medical Biochemistry, P.O. Box 1112, Blindern, University of Oslo, Oslo 0317, Norway.

Nature Biotechnology
|May 1, 2002
PubMed
Summary
This summary is machine-generated.

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Scientists functionally reprogrammed somatic cells using extracts from other cell types. This cell reprogramming creates new possibilities for therapeutic applications using isogenic replacement cells.

Area of Science:

  • Cell Biology
  • Developmental Biology
  • Immunology

Background:

  • Somatic cells are differentiated cells with specialized functions.
  • Cellular reprogramming aims to revert differentiated cells to a less specialized state.
  • Understanding reprogramming mechanisms is crucial for regenerative medicine.

Purpose of the Study:

  • To demonstrate the functional reprogramming of somatic cells using cell extracts.
  • To investigate the molecular events underlying cell reprogramming.
  • To explore the potential of in vitro reprogramming for therapeutic applications.

Main Methods:

  • Utilized nuclear and cytoplasmic extracts from different somatic cell types (T cells, neuronal precursors).
  • Exposed 293T fibroblasts and primary skin fibroblasts to these extracts.

Related Experiment Videos

  • Assessed reprogramming by analyzing transcription factor uptake, chromatin remodeling, histone acetylation, gene expression, and protein markers.

    • Main Results:

    • Reprogramming of 293T fibroblasts induced by T cell extracts involved nuclear factor assembly, chromatin remodeling, and activation of lymphoid-specific genes.
    • Reprogrammed cells expressed T cell receptors and assembled the interleukin-2 receptor.
    • Fibroblasts reprogrammed with neuronal precursor extract expressed neurofilament protein and showed neurite-like outgrowths.

    Conclusions:

    • Functional reprogramming of differentiated somatic cells is achievable using cell extracts.
    • This in vitro reprogramming method can induce cell-type-specific characteristics.
    • The findings open avenues for generating isogenic replacement cells for therapeutic purposes.