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DYRK1A roles in human neural progenitors
Jeremie Courraud1,2,3,4, Angélique Quartier1,2,3,4, Nathalie Drouot1,2,3,4
1Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France.
Frontiers in Neuroscience
|April 4, 2025
Summary
Mutations in dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A) cause neurodevelopmental disorders. This study reveals DYRK1A
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Mutations in DYRK1A are a common cause of neurodevelopmental disorders (NDDs), including intellectual disability and autism spectrum disorder.
- DYRK1A is a kinase crucial for nervous system development and various cellular functions.
Purpose of the Study:
- To characterize the DYRK1A interactome in human neural stem cells (hNSCs).
- To investigate the functional consequences of DYRK1A depletion in hNSCs.
Main Methods:
- Proteomic analysis to identify DYRK1A protein partners.
- siRNA-mediated knockdown of DYRK1A in hNSCs.
- Gene expression profiling using transcriptomics.
Main Results:
- Identified 35 DYRK1A interactors, including components of the anaphase-promoting complex (APC) and RNF114.
- DYRK1A depletion altered expression of genes involved in extracellular matrix, calcium binding, and growth factors.
- DYRK1A knockdown reduced p21 protein levels and ERK pathway activation, leading to decreased hNSC proliferation.
Conclusions:
- The DYRK1A interactome and gene expression changes highlight its role in regulating hNSC proliferation.
- Identified potential novel candidate genes for NDDs and therapeutic targets for DYRK1A syndrome.
