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Related Experiment Video

Updated: Dec 29, 2025

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Human artificial chromosomes for pluripotent stem cell-based tissue replacement therapy.

Sergey A Sinenko1, Sergey V Ponomartsev1, Alexey N Tomilin1

  • 1Institute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky Ave., St-Petersburg, 194064, Russia.

Experimental Cell Research
|February 5, 2020
PubMed
Summary

Human artificial chromosome (HAC) vectors offer a promising alternative to viral gene therapy for genetic diseases. Advancements in HAC technology are bringing these complex vectors closer to clinical applications, particularly for Duchenne muscular dystrophy.

Keywords:
Embryonic stem cells (ESCs)Gene therapyHuman artificial chromosome (HAC)Induced pluripotent stem cells (iPSCs)MMCTTissue replacement therapy

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Area of Science:

  • Genetics
  • Biotechnology
  • Gene Therapy

Background:

  • Gene therapy development has historically relied on viral vectors, which present significant limitations for clinical applications.
  • Episomal, non-integrative artificial chromosome-based vectors, particularly human artificial chromosomes (HACs), emerged as an alternative approximately 20 years ago.
  • HAC vectors can accommodate large DNA inserts and are being developed using de novo synthesis and top-down engineering.

Purpose of the Study:

  • To review recent advancements in human artificial chromosome (HAC) technology for gene therapy.
  • To discuss improvements in chromosome transfer methods and the development of preclinical models.
  • To highlight progress in applying HAC technology to genetic diseases like Duchenne muscular dystrophy (DMD).

Main Methods:

  • Development and engineering of human artificial chromosome (HAC) vectors.
  • Ex vivo gene transfer into stem cells.
  • Creation of mouse models for gene therapy and tissue replacement studies.
  • Focus on top-down HAC technology for modeling and preclinical research.

Main Results:

  • Significant progress has been made in developing HAC vectors with large insert capacity.
  • Improvements in chromosome transfer techniques enhance the feasibility of HAC technology.
  • Mouse models have been successfully developed for preclinical studies, particularly for Duchenne muscular dystrophy (DMD).

Conclusions:

  • HAC technology, despite its complexity, is advancing towards clinical relevance.
  • The integration of HAC technology with stem cell manipulation offers novel therapeutic strategies for genetic diseases.
  • Top-down HAC technology shows particular promise for modeling and preclinical gene therapy development, especially for DMD.