Conditional Atxn2l deletion caused hypoactivity without cell loss and altered expression of splicing-related proteins, supporting a role for ATXN2L in RNA regulation in mature neurons

Key J
University Frankfurt
September 30, 2025
Cells
https://pubmed.ncbi.nlm.nih.gov/41090760/

This article is currently being updated. View its version on PubMed.

https://pubmed.ncbi.nlm.nih.gov/41090760/

Research summary

The authors studied the effect of conditionally deleting Atxn2l in adult frontal cortex neurons expressing CamK2a‑CreERT2. Deletion of Atxn2l did not induce neuronal death but significantly reduced spontaneous mobility. Proteomic profiling revealed disrupted alternative splicing and RNA-binding protein regulation.

Key outcome of the study

Conditional Atxn2l deletion caused hypoactivity without cell loss and altered expression of splicing-related proteins, supporting a role for ATXN2L in RNA regulation in mature neurons

Model

Atxn2l^flox/flox conditional Knockout mouse, crossed with CamK2a‑CreERT2 — genOway-developed

TARGET:
Atxn2l
Synonyms:
Ataxin-2-like

Keywords

RNA-binding protein function, neurodegeneration modeling, adult neuron targeting, alternative splicing dysfunction

Technical specifications

Floxed exons 10–17 of Atxn2l, CreERT2 under CamK2a promoter, tamoxifen injection in adult mice, open field test for mobility, label-free proteomics, GO-term analysis for RNA and splicing pathways

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