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Related Experiment Videos

Immortalization by gene transfection

Y Katakura1, S Alam, S Shirahata

  • 1Laboratory of Cellular Regulation Technology, Graduate School of Genetic Resources Technology, Kyushu University, Fukuoka, Japan.

Methods in Cell Biology
|July 2, 1998
PubMed
Summary
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Generating immortalized cell lines is crucial for cell biology research. Immortalizing genes and advanced gene transfer techniques enable the creation of stable cell lines from rare or difficult-to-obtain primary cells, especially human cells.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Genetics

Background:

  • Cultured cell lines maintaining differentiated phenotypes are vital for cell biology.
  • Understanding in vivo cell function is aided by immortalized cell lines that retain differentiated features.

Purpose of the Study:

  • To describe the power and utility of cell immortalization methodology.
  • To focus on gene transfection as a primary method for cell immortalization.

Main Methods:

  • Utilizing immortalizing genes (e.g., SV40 large T antigen, papillomavirus E6/E7, adenovirus E1A) for gene transduction.
  • Employing innovative gene delivery and gene transfer methodologies.
  • Focusing on gene transfection for cell immortalization.

Main Results:

Related Experiment Videos

  • Spontaneous immortalization of rodent cells occurs frequently (10^-5 to 10^-6).
  • Spontaneous immortalization of human cells is extremely rare (<10^-12).
  • Immortalizing genes significantly increase the frequency of cell immortalization, approaching 100%.

Conclusions:

  • Immortalizing genes and gene transfer technologies facilitate the generation of cell lines from challenging primary cell types.
  • This methodology is particularly valuable for human cells, which are scarce and difficult to immortalize spontaneously.
  • The development of these techniques provides essential tools for studying cell biology and disease.