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Researchers uncover SNUPN gene responsible for a new muscular disorder

Researchers uncover SNUPN gene responsible for a new muscular disorder
Identification of 18 patients diagnosed with muscular dystrophy carrying biallelic SNUPN variants. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-45933-5

A study, published in Nature Communications, sheds light on a newly identified subtype of muscular dystrophy, revealing an unsuspected role of SNUPN gene in muscle cell function.

Led by Assistant Prof. Dr. Nathalie Escande Beillard, Prof. Dr. Hülya Kayserili, and Prof. Dr. Piraye Oflazer, a team of Ph.D. students and postdoc from Koç University Faculty of Medicine embarked on a broad investigation to decipher the genetic underpinnings of a mysterious condition identified in a case evaluated at Koç University Hospital.

Eighteen new patients recruited from 11 different countries with similar muscular dystrophy and revealed a potentially wider prevalence of this condition than initially presumed. Through deep genetic and functional analyses on patient's cells and tissues, the team identified alterations in the SNUPN as the causative factor for this debilitating disorder.

"This study represents a significant leap forward in our understanding and diagnosis of muscular dystrophies," said Assistant Prof. Dr. Nathalie Escande Beillard. "Our findings underscore for the first time the critical role of the Snurportin-1 protein encoded by the SNUPN gene in maintaining the and function of muscle cells."

The illness shares similarities with SMA, not just in its impact on , but also in its progressive course and potential lethality. The Snurportin-1 protein involved in the newly identified disease interacts within the cell with the protein causing SMA.

Since SMA treatment is currently applied but still lacks full efficacy, ongoing research aims to provide evidence that may help SMA patients as well. Thanks to the that has been generated in the zebrafish laboratory, researchers will continue to explore the role of this in muscle homeostasis and develop new treatment strategies.

More information: Marwan Nashabat et al, SNUPN deficiency causes a recessive muscular dystrophy due to RNA mis-splicing and ECM dysregulation, Nature Communications (2024). DOI: 10.1038/s41467-024-45933-5

Journal information: Nature Communications
Provided by Koc University
Citation: Researchers uncover SNUPN gene responsible for a new muscular disorder (2024, April 24) retrieved 28 May 2024 from https://medicalxpress.com/news/2024-04-uncover-snupn-gene-responsible-muscular.html
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