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Related Experiment Video

Updated: Nov 14, 2025

The Production of Pluripotent Stem Cells from Mouse Amniotic Fluid Cells Using a Transposon System
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Accelerating and de-risking CMC development with transposon-derived manufacturing cell lines.

Sowmya Rajendran1, Sowmya Balasubramanian1, Lynn Webster1

  • 1Cell Line Development, Protein Purification and Protein Analytical Departments of ATUM, Inc., Newark, California, USA.

Biotechnology and Bioengineering
|March 11, 2021
PubMed
Summary

The Leap-In Transposase platform offers a superior method for developing stable, high-producing mammalian cell lines for biologic drugs. This transposon system enhances productivity and genetic stability, reducing risks and timelines for Investigational New Drug filings.

Keywords:
Leap-In transposasecell line developmentintegrationstable poolstransposasetransposon

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Cell Line Development

Background:

  • Developing stable, high-producing cell lines is crucial for protein-based biologic drug manufacturing and Investigational New Drug (IND) filings.
  • Traditional methods using nonhomologous recombination often face challenges like poor integration, genetic instability, and variable product quality.

Purpose of the Study:

  • To introduce and evaluate the Leap-In Transposase platform, a novel transposon-based system for mammalian cell line development.
  • To demonstrate the platform's ability to generate high-titer, genetically stable cell pools and clones.

Main Methods:

  • Utilized the Leap-In Transposase system for gene integration in mammalian cells (e.g., Chinese hamster ovary cells).
  • Assessed the productivity, genetic stability, and product quality of resulting cell pools and derived clones.

Main Results:

  • The Leap-In Transposase platform consistently produced high-titer, stable cell pools.
  • Derived clones showed productivity distributions strongly biased toward high producers.
  • Demonstrated consistently high genetic and expression stability, surpassing nonhomologous recombination methods.

Conclusions:

  • The Leap-In Transposase platform offers a robust solution for de-risking biologic drug development programs early.
  • This system reduces timelines and resource requirements by overcoming limitations of traditional cell line development methods.