The Transcription Factor, α1ACT, Acts Through a MicroRNA Network to Regulate Neurogenesis and Cell Death During Neonatal Cerebellar Development
Open accessAbstract
MicroRNAs, a class of small RNA regulators, function throughout neurodevelopment, from neural stem cell neurogenesis to neuronal maturation, synaptic formation, and plasticity. α1ACT, a transcription factor (TF), plays a critical role in neonatal cerebellar development by regulating an ensemble of genes. Of these, ChIP-seq analysis matched near 50% genes directly regulated by α1ACT. Yet, more than half the regulated transcripts lacked direct interaction with α1ACT. To investigate whether α1ACT acts through a microRNA network, we studied α1ACT-associated simultaneous miRNA:mRNA transcriptome profiles, using miRNA-seq paired with RNA-seq. Thirty-one differentially expressed miRNAs (DEMs) associated with α1ACT-regulated differentially expressed genes (DEGs) were profiled in α1ACT-overexpressing PC12 cells and were further validated in neonatal transgenic mouse cerebellum overexpressing α1ACT in a context-dependent manner. Here, we also demonstrated that α1ACT facilitates neurogenesis and development of dendritic synapses and is partially a result of the downregulation of the miR-99 cluster, miR-143, miR-23, miR-146, miR-363, and miR-484. On the other hand, the miR-181, miR-125, and miR-708 clusters were upregulated by α1ACT, which inhibit MAPK signaling and cell death pathways by targeting Ask1, Odc1, Atf4, and Nuf2 for decreased expression. MiR-181a-5p was verified as the most abundant DEM in neonatal cerebellum, which was further induced by α1ACT. Overall, under α1ACT modulation, up-/downregulated miRNA clusters with their paired target genes may form a regulatory network controlling the balance between the neuronal proliferation, differentiation, and cell death in the cerebellum to promote neonatal development. Our findings concerning the α1ACT-related miRNA/mRNA expression profiles in neonatal cerebellum may inform future investigations for cerebellar development.
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Levels of miR-23 declined in the cerebellum of transgenic mice with α1ACT overexpression, confirming its function on neurogenesis and development promotion of dendritic synapses via MAPK signaling and cell death pathways, and controls the balance between cerebellar neuronal proliferation, differentiation, and cell death.
“the levels of miR-23 declined in the cerebellum of transgenic mice with α1ACT overexpression, confirming its function on the neurogenesis and development promotion of dendritic synapses via MAPK signaling and cell death pathways, and controls the balance between cerebellar neuronal proliferation, differentiation, and cell death [132].”
From Recent advances of miR-23 in human diseases and growth development (2025) · cites this paper as [132]
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- Authors
- Wei, C., Benzow, K., Koob, M. D., Gomez, C. M., & Du, X.
- Affiliations
- University of Chicago (US)
- University of Minnesota (US)
- Corresponding author
- Gomez, Christopher M.
- Du, Xiaofei
- Venue
- The Cerebellum
- Published
- 2022-06-22
- Volume
- 22
- Issue
- 4
- Pages
- 651-662
- ISSN
- 1473-4222 (ISSN-L)
- 1473-4230
- PMC
- PMC10307715
- OpenAlex
- W4283277103
- Cited by
- 5
- References
- 67
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 2
- FWCI
- 0.42
- Type
- journal article
- Language
- en
- Update notices
- correction (2023-05-18)
- Open access
- hybrid
- doi.org
- Locations
- The Cerebellum (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health (R35NS116868, R01NS082788, R21NS094872-01, R01NS094665)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
- Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
- Keywords
- transcription factors, microRNA networks, neurogenesis, neuronal cell death, miR-181a-5p, miR-143, miR-146, miR-23, miR-363, miR-484, miR-125, miR-708, MAPK signaling, ASK1, ODC1, ATF4, NUF2, PC12 cells
- MeSH terms
- Animals, Cerebellum, Mice, Transgenic, RNA, Messenger, Transcription Factors, Gene Expression Profiling, MicroRNAs, Mice, Rats, Neurogenesis
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