Preprint Case Report Version 1 This version is not peer-reviewed

Expanding the Clinical Spectrum of CEP290 Variants: A Case Report on Non-Syndromic Retinal Dystrophy with Mild Phenotype

Version 1 : Received: 29 October 2024 / Approved: 29 October 2024 / Online: 29 October 2024 (13:11:34 CET)

How to cite: Esteve-Garcia, A.; Aguilera, C.; Sau, C.; Padró-Miquel, A.; Català-Mora, J.; Cobos, E. Expanding the Clinical Spectrum of CEP290 Variants: A Case Report on Non-Syndromic Retinal Dystrophy with Mild Phenotype. Preprints 2024, 2024102317. https://doi.org/10.20944/preprints202410.2317.v1 Esteve-Garcia, A.; Aguilera, C.; Sau, C.; Padró-Miquel, A.; Català-Mora, J.; Cobos, E. Expanding the Clinical Spectrum of CEP290 Variants: A Case Report on Non-Syndromic Retinal Dystrophy with Mild Phenotype. Preprints 2024, 2024102317. https://doi.org/10.20944/preprints202410.2317.v1

Abstract

Background/Objectives: Biallelic pathogenic variants in the CEP290 gene are typically associated with severe, early-onset inherited retinal dystrophies (IRDs) in both syndromic and non-syndromic forms. This study highlights the phenotypic variability of CEP290-related non-syndromic IRDs, focusing on two siblings with biallelic CEP290 variants. One sibling presents with a milder phenotype, expanding the known spectrum of CEP290-related IRDs and emphasizing the importance of personalized clinical monitoring; Methods: Whole-exome sequencing (WES) was used to identify CEP290 pathogenic variants in the siblings. Comprehensive ophthalmologic evaluations were performed to assess the severity and progression of retinal degeneration; Results: Both siblings were found to carry compound heterozygous pathogenic variants in CEP290, inherited in trans. Clinical evaluations revealed significantly preserved retinal function in the sister, whereas the brother exhibited a more aggressive and progressive retinal dystrophy; Conclusions: This study expands the phenotypic spectrum of non-syndromic CEP290-related IRDs, demonstrating that biallelic CEP290 variants can result in a wide range of severity, from mild to severe. These findings highlight the need for personalized monitoring and tailored management strategies in CEP290-related IRDs.

Keywords

CEP290; retinal dystrophy; phenotypic heterogeneity

Subject

Medicine and Pharmacology, Ophthalmology

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.