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An In Vivo Drug Screen Reveals That Sirtuin 2 Activity Promotes Spinal Cord Neurogenesis in Developing Zebrafish.
Laura González-Llera1,2, Álvaro J Arana3,4, Laura Sánchez3,4
1Departamento de Bioloxía Funcional, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
Biomolecules
|October 29, 2025
Summary
Sirtuin 2 (SIRT2) promotes the development of specific neurons in the spinal cord. Inhibiting SIRT2 impairs neuron generation and causes movement problems, highlighting SIRT2
Area of Science:
- Neuroscience
- Developmental Biology
- Pharmacology
Background:
- Neurogenesis is crucial for nervous system development.
- Spinal cord neurogenesis requires precise molecular regulation.
- Zebrafish models offer a platform for drug screening in neurogenesis.
Purpose of the Study:
- To identify novel regulators of spinal cord neurogenesis.
- To investigate the role of deacetylase sirtuin 2 (SIRT2) in spinal cord development.
- To explore SIRT2 as a potential therapeutic target for spinal cord repair.
Main Methods:
- Expanded a zebrafish-based drug-screening protocol.
- Utilized specific SIRT2 inhibitors to assess effects on neurogenesis.
- Evaluated locomotor function following SIRT2 inhibition.
Main Results:
- Discovered a novel role for SIRT2 in promoting serotonergic interneuron generation in the spinal cord.
- SIRT2 inhibition reduced serotonergic neuron production.
- Locomotor deficits were observed in zebrafish treated with SIRT2 inhibitors.
Conclusions:
- SIRT2 is a key regulator of spinal cord neurogenesis.
- SIRT2 influences mitotic activity in progenitor cells.
- SIRT2 represents a promising target for neural repair strategies in spinal cord disorders.
