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NEAT1 Promotes Epileptogenesis in Tuberous Sclerosis Complex
Suhui Kuang1,2,3, Tinghong Liu1,2, Zhirong Wei1
1Functional Neurosurgery Department, National Children's Health Center of China, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|October 15, 2025
Summary
The long non-coding RNA NEAT1 plays a key role in tuberous sclerosis complex (TSC) neurological issues. Reducing NEAT1 in TSC models improved epilepsy and cognitive function, suggesting NEAT1 as a therapeutic target.
Area of Science:
- Neuroscience
- Epigenetics
- Molecular Biology
Background:
- Tuberous sclerosis complex (TSC) causes severe neurological problems like epilepsy and cognitive impairment, with limited treatment options.
- The role of epigenetic factors, specifically long non-coding RNAs (lncRNAs), in TSC pathogenesis is not well understood.
Purpose of the Study:
- To investigate the function of the lncRNA NEAT1 in TSC-related epilepsy and cognitive deficits.
- To explore NEAT1's involvement in key signaling pathways implicated in TSC.
Main Methods:
- RNA sequencing of clinical TSC tissue samples.
- Development and utilization of NEAT1-manipulated TSC2 conditional knockout mouse and cell models.
- In vivo seizure monitoring and behavioral tests (spatial learning, working memory).
- Cellular analyses of signaling pathways, neurotransmitter balance, and ion channel function.
Main Results:
- NEAT1 was differentially expressed in TSC tubers and linked to the PI3K-AKT pathway.
- NEAT1 knockdown in TSC models reduced seizure frequency and improved memory.
- NEAT1 regulates the PI3K/AKT/mTOR pathway, neurotransmitter receptor balance, and potassium currents.
- NEAT1 overexpression activated mTORC1, promoted abnormal cell proliferation, and caused neuronal hyperexcitability.
Conclusions:
- NEAT1 is a significant regulator of neuronal function and excitability in the context of TSC.
- Targeting NEAT1 offers a promising therapeutic strategy for managing epilepsy and cognitive dysfunction in TSC.
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