Developing reliable animal models can be time-consuming, complex, and difficult to control. Our saporin-based approach enables targeted elimination of specific cell populations, allowing you to create precise animal models for studying disease, behavior, and biological function—without the long timelines of traditional methods.
This approach has been widely used to generate models for neurological and disease-specific research, where selective removal of defined cell types is critical to understanding function and pathology.
Gupta et al. recently published this article.
Their study examined whether selective loss of inhibitory interneurons in the hippocampus was enough to trigger temporal lobe epilepsy with hippocampal sclerosis (TLE-HS+). Injection of stable substance P-saporin (SSP-SAP) into the hippocampus of rats, rapidly targeted and eliminated specific inhibitory neurons.
Within 4–6 days, the animals developed spontaneous seizures. Although these early seizures subsided, the frequency and duration of self-generated epileptiform events steadily increased over the following three months, demonstrating progressive epileptogenesis. The researchers also observed ongoing loss of hippocampal neurons (particularly in the CA1 and CA3 regions) and increasing astrogliosis, both hallmark features of hippocampal sclerosis seen in human TLE patients.
Overall, the findings show that selective disruption of hippocampal inhibitory circuitry is sufficient to initiate epilepsy and drive the development of pathological changes that closely resemble human temporal lobe epilepsy with hippocampal sclerosis.
Unlike other models of epilepsy, the SSP-SAP model (Cat. #IT-11) has very specific toxicity that does not cause early death in the animal. The animal will have a normal lifespan, continuing to experience seizures.
With our Animal Models, you can:
- Selectively remove defined cell types in vivo
- Model disease pathways and functional outcomes
- Study behavioral and physiological changes
- Accelerate research timelines with rapid model generation
- Most models are ready in just 2 weeks, helping you move from hypothesis to data faster.