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@cmdooley.bsky.social

20 Followers  |  12 Following  |  5 Posts  |  Joined: 14.11.2024  |  1.3777

Latest posts by cmdooley.bsky.social on Bluesky

5/5 🌟 Why It Matters:
First evidence of TA in humans! This work rethinks DMD treatment, showing mRNA decay itself can drive genetic compensation. Kudos to 1st Lara!
@DouglasAdamoski

@TJ_ThomasJuan
& team!
@MPI_HLR
πŸŽ‰ #RareDisease

13.02.2025 10:47 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

4/5 πŸ₯ Therapeutic Implications:
This TA mechanism opens new avenues: ASOs/ribozymes could enhance utrophin to compensate for dystrophin. Surprisingly, current exon-skipping therapies (e.g., eteplirsen) might reduce utrophin. #DrugDevelopment

13.02.2025 10:47 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

3/5 πŸ’‘ Key Experiments:
Splice-switching ASOs skipped exons, creating PTCs and raising utrophin levels.
Restoring the reading frame in patient cells reduced utrophin, showing TA’s role.
Self-cleaving ribozymes in minigenes also triggered utrophin. #ASO #RNA

13.02.2025 10:47 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

2/5 πŸ§ͺ How does it work?
By introducing premature stop codons (PTCs) in DMD mRNA, we induced mRNA decay via nonsense-mediated decay (NMD). This decay signals cells to boost UTRN (utrophin) transcription. Blocking NMD reversed utrophin upregulation! #GeneTherapy #CRISPR

13.02.2025 10:47 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

1/? 🧬 New Breakthrough in Duchenne Muscular Dystrophy (DMD)!
Our new paper in
@Nature
reveals how utrophinβ€”a dystrophin β€œbackup”—is upregulated in DMD. The key? Transcriptional adaptation (TA), triggered by mutant mRNA decay, not protein loss.
[πŸ”— Link: www.nature.com/articles/s41...

13.02.2025 10:47 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 3    πŸ“Œ 1

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