Episode
Podcast 993: Personalized Gene Editing Therapy
- Podcast
- Emergency Medical Minute
- Published
- Feb 9, 2026
- Duration seconds
- 392
- Processing state
not_requested
Actions
POST https://stenobird.com/v1/public/podcasts/emergency-medical-minute-972156/episodes/podcast-993-personalized-gene-editing-therapy/transcription-requests
Idempotently request low-priority transcript generation for this episode.GET https://stenobird.com/podcast/emergency-medical-minute-972156/podcast-993-personalized-gene-editing-therapy.md
Read the agent-friendly Markdown representation of this episode resource.
Summary
Contributor: Alec Coston, MD Educational Pearls: Disclaimer: this has nothing to do with the ER but is too cool to not talk about. Condition: Carbamoyl phosphate synthetase 1 (CPS1) deficiency Rare inborn error of metabolism Inability to properly break down ammonia Leads to severe hyperammonemia and hepatic encephalopathy Natural history: Without treatment, typically fatal within the first few weeks of life Even with current standard treatments, life expectancy is often limited to ~5–6 years Breakthrough treatment: A team of researchers at the Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania developed the CRISPR-based targeted gene therapy for this patient. First-of-its-kind precision approach tailored to the patient's specific mutation Key components of the therapy: Whole-genome sequencing to identify the exact CPS1 mutation Creation of a custom base-editing enzyme designed to correct that specific mutation Design of a guide RNA to direct the base editor to the precise genomic location Delivery method: Lipid nanoparticles used to deliver the gene-editing machinery Nanoparticles can be targeted to specific tissues Why the liver works well: CPS1 is primarily expressed in hepatocytes The liver is relatively easy to target with lipid nanoparticles Hepatocytes divide frequently, allowing edited genes to be passed on as cells replicate Long-term impact: Once edited, cells continue producing functional CPS1 enzyme Potential for durable, possibly lifelong correction from a single treatment References https://www.nih.gov/news-events/news-releases/infant-rare-incurable-disease-first-successfully-receive-personalized-gene-therapy-treatment Choi Y, Oh A, Lee Y, Kim GH, Choi JH, Yoo HW, Lee BH. Unfavorable clinical outcomes…