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The Multi-System Roles of Dp71 Dystrophin Isoforms in Duchenne Muscular Dystrophy
Harry Wilton-Clark1, Alishba Raza2, Toshifumi Yokota1
1Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2H7, Canada.
Muscles (Basel, Switzerland)
|June 25, 2026
Summary
The Duchenne muscular dystrophy (DMD) gene produces dystrophin, crucial for muscle strength. This review details the diverse roles of the Dp71 isoform in the brain, retina, and muscles, and discusses potential therapies.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- The DMD gene encodes dystrophin, essential for muscle membrane integrity.
- Mutations in DMD cause Duchenne muscular dystrophy.
- The DMD gene also produces shorter dystrophin isoforms, including Dp71, with varied functions.
Purpose of the Study:
- To consolidate existing research on the Dp71 dystrophin isoform.
- To provide a comprehensive overview of Dp71's roles in the brain, retina, and skeletal muscles.
- To identify current knowledge gaps and explore Dp71-based therapeutic strategies.
Main Methods:
- Narrative review of scientific literature.
- Synthesis of studies on Dp71 function.
- Analysis of pre-clinical Dp71-based therapies.
Main Results:
- Dp71 plays diverse roles in the central nervous system, retina, and skeletal muscle.
- Significant knowledge gaps exist regarding Dp71's specific functions and disease associations.
- Pre-clinical therapies targeting Dp71 show promise but face potential clinical translation challenges.
Conclusions:
- Dp71 is a significant dystrophin isoform with widespread physiological roles.
- Further research is needed to fully elucidate Dp71's functions and therapeutic potential.
- Understanding Dp71 is crucial for advancing Duchenne muscular dystrophy research and treatment.
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