Comparison of rodent and human neuronal models of epilepsy in vitro

ModelCell sourceAdvantagesDisadvantagesReferences
Rodents
Primary neuronal culturesNewborn or embryonic brain at late stages

• Affordability and ease of obtaining in a short time (weeks)

• Preservation of functional neuronal phenotypes

• Mouse genetic lines

• Rodent genotype

• Rodent neuronal phenotype

• Disordered connections between neurons

[15, 16, 30, 40]
Organotipic brain slicesExtracted brain of young animals

• Preservation of overall tissue architecture

• Preservation of functional phenotypes of neurons

• Mouse genetic lines

• Rodent genotype

• Rodent neuronal phenotype

• Post-traumatic reorganization of axons and synapses

[10, 11, 48, 72]
Human
hiPSC-derived neuronal culturesStem cells from sick and healthy patients, often fibroblasts

• Human genotype

• Donors with inherited disease phenotype and specific mutations

• Special requirements and limitations

• Difficulty in differentiating functional neurons and neural networks

• Long culturing time scale

• Need to co-seed different neuronal subtypes and glia

• Disordered, poor, or absent connections between neurons

[17, 18, 57, 61]
Organotipic brain slicesBrain surgery to excise the focus of epilepsy patients

• Human genotype

• Donors with inherited disease phenotype and specific mutations

• Preservation of overall tissue architecture

• Preservation of functional phenotypes of neurons

• Special requirements and limitations

• Fast degradation of neurons

• Aged brain tissue

• Reorganization of axons and synapses

• History of treatment with drugs

[4951, 73]