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Related Experiment Video

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Stem cell transplantation for Huntington's diseases.

Kyung-Ah Choi1, Yeonho Choi2, Sunghoi Hong3

  • 1School of Biosystem and Biomedical Science, College of Health Science, Korea University, 22 Gil 6-3 Inchon-Ro, Seongbuk-Gu, Seoul 02855, Republic of Korea.

Methods (San Diego, Calif.)
|September 5, 2017
PubMed
Summary

Stem cell transplantation shows promise for Huntington's disease (HD) by replacing lost neurons. Induced neural stem cells (NSCs) offer a safer alternative, with gene correction via CRISPR/Cas9 enhancing therapeutic potential for this genetic neurodegenerative disorder.

Keywords:
Gene correctionHuntington’s diseaseInduced neural stem cellsStem cell-based therapiesTransplantation

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Area of Science:

  • Neuroscience
  • Regenerative Medicine
  • Genetics

Background:

  • Huntington's disease (HD) is a fatal, inherited neurodegenerative disorder characterized by the loss of striatal GABAergic medium spiny neurons (MSNs).
  • Stem cell transplantation is a promising therapeutic strategy for HD, aiming to replace damaged or lost neurons and restore function.
  • Current stem cell sources, including brain-derived neural stem cells (NSCs) and pluripotent stem cells (PSCs), face challenges such as limited availability and potential tumor formation.

Purpose of the Study:

  • To review methods for obtaining optimal NSCs for transplantation in HD treatment.
  • To discuss differentiation protocols for generating functional GABAergic MSNs from stem cells.
  • To explore the role of gene correction using CRISPR/Cas9 in treating HD stem cells.

Main Methods:

  • Review of existing literature on stem cell sources and differentiation techniques for HD.
  • Analysis of induced NSCs (iNSCs) derived from somatic cells as a safer alternative for transplantation.
  • Discussion of CRISPR/Cas9 gene editing for correcting the expanded CAG repeats in HD-related stem cells.

Main Results:

  • Induced NSCs derived from somatic cells present a reduced risk of tumor formation compared to PSCs.
  • Successful transplantation of stem cells or their derivatives has shown functional improvements in animal models of HD.
  • Gene correction strategies, particularly CRISPR/Cas9, are crucial for addressing the genetic basis of HD in stem cell therapies.

Conclusions:

  • Optimizing NSC sources and differentiation protocols is key for effective stem cell transplantation in HD.
  • Induced NSCs offer a safer and more accessible option for HD cell-based therapies.
  • Integrating gene correction with stem cell transplantation holds significant potential for a comprehensive treatment of Huntington's disease.