Genetic Therapy Approaches for Ornithine Transcarbamylase Deficiency

Berna Seker Yilmaz1, Paul Gissen1,2,3

  • 1Genetics and Genomic Medicine Department, Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, UK.

Biomedicines
|August 26, 2023
PubMed

Insights

Ornithine transcarbamylase deficiency (OTCD) gene therapy shows promise for treating this rare urea cycle disorder. This review explores AAV gene addition, mRNA therapy, and genome editing approaches for clinical translation.

Area of Science:

  • Biochemistry
  • Genetics
  • Medical Research

Background:

  • Ornithine transcarbamylase deficiency (OTCD) is the most prevalent urea cycle disorder.
  • Current treatments for OTCD are insufficient, leading to severe hyperammonemic episodes and potential neurological damage or death.
  • Liver transplantation offers a cure but faces limitations like donor scarcity and lifelong immunosuppression.

Purpose of the Study:

  • To review the progress of gene therapy for OTCD.
  • To highlight the benefits and challenges of various gene therapy modalities.
  • To discuss current clinical trials and future directions for OTCD gene therapy.

Main Methods:

  • Review of current literature on gene therapy for OTCD.
  • Analysis of different gene therapy approaches: AAV gene addition, mRNA therapy, and genome editing.
  • Examination of clinical trial data and future research avenues.

Main Results:

  • Gene therapy presents a promising alternative to current OTCD treatments.
  • Each gene therapy modality (AAV, mRNA, genome editing) has unique advantages and hurdles for clinical application.
  • Ongoing clinical trials are evaluating the safety and efficacy of these novel therapies.

Conclusions:

  • Gene therapy holds significant potential to address the unmet needs in OTCD treatment.
  • Further research and clinical trials are crucial for advancing gene therapy for OTCD.
  • The development of effective gene therapies could revolutionize the management of urea cycle disorders.

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