loading page

Multi-omics in MECP2 duplication syndrome patients and carriers.
  • +3
  • Ainhoa Pascual-Alonso,
  • Clara Xiol,
  • Dmitrii Smirnov,
  • Robert Kopajtich,
  • Holger Prokisch,
  • Judith Armstrong
Ainhoa Pascual-Alonso
Fundació per la Recerca Sant Joan de Déu
Author Profile
Clara Xiol
Fundació per la Recerca Sant Joan de Déu
Author Profile
Dmitrii Smirnov
Technical University of Munich
Author Profile
Robert Kopajtich
Technical University of Munich
Author Profile
Holger Prokisch
Technical University of Munich
Author Profile
Judith Armstrong
Institut de Recerca Sant Joan de Deu

Corresponding Author:judith.armstrong@sjd.es

Author Profile

Abstract

MECP2 duplication syndrome (MDS) is an X-linked neurodevelopmental disorder caused by the gain of dose of at least the genes MECP2 and IRAK1 and is characterised by intellectual disability (ID), developmental delay, hypotonia, epilepsy and recurrent infections. It mainly affects males, and females can be affected or asymptomatic carriers. Rett syndrome (RTT) is mainly triggered by loss of function mutations in MECP2 and is a well described syndrome that presents ID, epilepsy, lack of purposeful hand use and impaired speech, among others. As a result of implementing omics technology, altered biological pathways in human RTT samples have been reported, but such molecular characterisation has not been performed in MDS patients. We gathered human skin fibroblasts from 17 patients with MDS, 10 MECP2 duplication carrier mothers and 21 RTT patients, and performed multi-omics (RNAseq and proteomics) analysis. Here, we provide a thorough description and compare the shared and specific dysregulated biological processes between the cohorts. We also highlight the genes TMOD2, SRGAP1, COPS2, CNPY2, IGF2BP1, MOB2, VASP, FZD7, ECSIT and KIF3B as biomarker and therapeutic target candidates due to their implication in neuronal functions. Defining the RNA and protein profiles has shown that our four cohorts are less alike than expected by their shared phenotypes.
Submitted to European Journal of Neuroscience
15 Feb 2024Review(s) Completed, Editorial Evaluation Pending
25 Feb 2024Editorial Decision: Revise Major
17 Apr 2024Assigned to Editor
17 Apr 2024Submission Checks Completed
17 Apr 2024Reviewer(s) Assigned
24 Apr 2024Review(s) Completed, Editorial Evaluation Pending
24 Apr 2024Editorial Decision: Accept