| First Author | Du X | Year | 2019 |
| Journal | Neuron | Volume | 102 |
| Issue | 4 | Pages | 770-785.e7 |
| PubMed ID | 30922876 | Mgi Jnum | J:276254 |
| Mgi Id | MGI:6314003 | Doi | 10.1016/j.neuron.2019.02.036 |
| Citation | Du X, et al. (2019) alpha1ACT Is Essential for Survival and Early Cerebellar Programming in a Critical Neonatal Window. Neuron 102(4):770-785.e7 |
| abstractText | Postnatal cerebellar development is a precisely regulated process involving well-orchestrated expression of neural genes. Neurological phenotypes associated with CACNA1A gene defects have been increasingly recognized, yet the molecular principles underlying this association remain elusive. By characterizing a dose-dependent CACNA1A gene deficiency mouse model, we discovered that alpha1ACT, as a transcription factor and secondary protein of CACNA1A mRNA, drives dynamic gene expression networks within cerebellar Purkinje cells and is indispensable for neonatal survival. Perinatal loss of alpha1ACT leads to motor dysfunction through disruption of neurogenesis and synaptic regulatory networks. However, its elimination in adulthood has minimal effect on the cerebellum. These findings shed light on the critical role of alpha1ACT in facilitating neuronal development in both mice and humans and support a rationale for gene therapies for calcium-channel-associated cerebellar disorders. Finally, we show that bicistronic expression may be common to the voltage-gated calcium channel (VGCC) gene family and may help explain complex genetic syndromes. |
