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Science & TechnologySource: Indian Express

Explained: A first, how a customised gene-editing tool was used to treat a 9-month-old boy

Wednesday, 28 May 2025
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Key Points

Last Updated: 2025-05-28 - A nine-month-old boy in the U.S. has become the first person to receive a treatment using a customised gene-editing tool known as base editing. This breakthrough matters for UPSC aspirants, particularly for GS Paper 3, as it highlights advancements in Science & Technology and their implications on healthcare.

Key Facts About Customised Gene-Editing Tool

  • First successful treatment using customised gene-editing on a nine-month-old boy.
  • The boy suffered from CPS1 deficiency, causing toxic ammonia levels in his blood.
  • Developed by scientists from the University of Pennsylvania and Children’s Hospital of Philadelphia.
  • Utilizes base editing, a new version of CRISPR-Cas9 technology.
  • Base editing allows for targeted single-base conversions.
  • Fixes DNA mispairing without needing foreign DNA insertion.
  • Involves programming the base editing tool to rewrite target bases.
  • Brings hope for treating rare genetic disorders with no current medical treatments.

Significance of Base Editing in Genetic Disorders

The advent of base editing marks a significant milestone in medical science, offering a more precise alternative to traditional gene-editing methods. This technology aligns with India's strategic goals of advancing healthcare and biotechnology sectors. As India aims to enhance its global standing in scientific research, breakthroughs like these provide a blueprint for innovation. However, the high costs and regulatory challenges remain barriers to widespread adoption, similar to global trends.

Related Government Schemes/Policies

  • National Biotechnology Development Strategy: Aims to foster innovation and research in biotechnology.
  • Make in India: Encourages domestic production and innovation in the healthcare sector.

UPSC Relevance

  • GS Paper 3: Science & Technology - Developments and their applications and effects in everyday life.
  • Prelims Angle: Questions on gene-editing technologies, base editing, and their applications.
  • Mains Angle: Analytical themes on the impact of biotechnology on healthcare, ethical considerations, and accessibility issues.
  • Essay Paper: Topics on technological advancements and their societal impacts.

FAQ Section

  • What is base editing?
    Base editing is a gene-editing technique that allows for targeted single-base conversions in DNA, correcting genetic defects without inserting foreign DNA.
  • Why is base editing important?
    Base editing offers a precise method to treat genetic disorders, providing hope for conditions with no current treatments. It represents a significant advancement in medical science.
  • What are the key features of base editing?
    Key features include targeted single-base conversions, correction of DNA mispairing, and the ability to rewrite target bases without foreign DNA insertion.

Detailed Coverage

  • First successful treatment using customised gene-editing on a nine-month-old boy.
  • The boy suffered from CPS1 deficiency, causing toxic ammonia levels in his blood.
  • Developed by scientists from the University of Pennsylvania and Children’s Hospital of Philadelphia.
  • Utilizes base editing, a new version of CRISPR-Cas9 technology.
  • Base editing allows for targeted single-base conversions.
  • Fixes DNA mispairing without needing foreign DNA insertion.
  • Involves programming the base editing tool to rewrite target bases.
  • Brings hope for treating rare genetic disorders with no current medical treatments.
  • High costs may limit accessibility to such treatments.
  • KJ’s treatment was funded by research institutes and biotechnology companies.
  • Base editing tool was a one-off treatment designed specifically for KJ.
  • Challenges in scaling up technology for mass consumption.
  • Regulatory approvals present another significant hurdle.
  • Personalized treatments need to become more accessible in the future.
  • Only a few individuals like KJ may currently benefit from base editing therapies.
  • Significant milestone in medical science for treating genetic disorders.
Science & Technology

Practice Questions

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In the realm of genetic editing, what distinguishes Base Editing from its predecessor, CRISPR-Cas9, particularly in terms of the method employed to modify DNA sequences?