Deneysel Epilepsi Modelleri
Özet
Epilepsi, dünya çapında yaklaşık 50 milyon insanı etkileyen bulaşıcı olmayan, kronik bir beyin hastalığıdır. Deneysel epilepsi modelleri, epileptik nöbetlerin mekanizmalarını anlamak, epileptogenezi araştırmak ve yeni terapötik stratejileri geliştirmek açısından kritik öneme sahiptir. Temel nörobilim ve klinik araştırmalar için vazgeçilmezdir. Elektriksel modeller, limbik sistemin ve sinaptik plastisitenin epileptik süreçlerdeki rolünü ortaya koyarken, kimyasal modeller, hücresel düzeyde nöbet ve nöronal hasar ilişkilerini inceleme imkânı sağlar. Öte yandan, genetik modeller, insanlarda görülen kalıtsal epilepsi sendromlarını taklit ederek hem nöbet fenotiplerini hem de genetik etkileşimleri inceleme fırsatı sunar. Bu modellerin kombinasyonu, epilepsinin çok boyutlu doğasını anlamada ve antiepileptik ilaç geliştirme süreçlerinde benzersiz bir öneme sahiptir. Ayrıca her modelin kendine özgü avantaj ve sınırlılıkları, araştırmacıların çalışma amacına göre model seçimini stratejik olarak yapmasını gerektirir. Güncel çalışmalar, klasik modellerin yanı sıra transgenik fareler ve yüksek hacimli zebrafish taramaları gibi modern genetik araçlarla birleşerek epilepsi araştırmalarında daha hedefe yönelik ve klinik ile daha uyumlu sonuçlar elde etmeyi mümkün kılmaktadır. Sonuç olarak, deneysel epilepsi modelleri, hem temel bilim hem de translasyonel araştırmalar için vazgeçilmez bir araç lup, gelecekte epilepsi tedavisinde kişiselleştirilmiş ve mekanizma odaklı yaklaşımların geliştirilmesine öncülük etmeye devam edecektir.
Epilepsy is a non-contagious, chronic brain disorder affecting approximately 50 million people worldwide. Experimental epilepsy models are critical for understanding the mechanisms of epileptic seizures, investigating epileptogenesis, and developing new therapeutic strategies. They are indispensable for basic neuroscience and clinical research. Electrical models reveal the role of the limbic system and synaptic plasticity in epileptic processes, while chemical models allow for the examination of seizure and neuronal damage relationships at the cellular level.On the other hand, genetic models mimic hereditary epilepsy syndromes seen in humans, offering the opportunity to study both seizure phenotypes and genetic interactions.The combination of these models is uniquely important in understanding the multidimensional nature of epilepsy and in the development of antiepileptic drugs.Furthermore, the unique advantages and limitations of each model require researchers to strategically select models according to their research objectives. Current studies, combining classical models with modern genetic tools such as transgenic mice and high-throughput zebrafish screens, enable more targeted and clinically relevant results in epilepsy research. In conclusion, experimental epilepsy models are an indispensable tool for both basic science and translational research, and will continue to lead the way in the development of personalized and mechanism-focused approaches to epilepsy treatment in the future.
Referanslar
World Health Organization. Epilepsy. 2024; Available from: https://www.who.int/news-room/fact-sheets/detail/epilepsy (Erişim: 02.11.2025)
Łukawski K, Andres-Mach M, Czuczwar M, Łuszczki JJ, Kruszyński K, Czuczwar SJ. Mechanisms of epileptogenesis and preclinical approach to antiepileptogenic therapies. Pharmacol Reports [Internet]. 2018;70(2):284–93. Available from: http://dx.doi.org/10.1016/j.pharep.2017.07.012
Beniczky S, Trinka E, Wirrell E, Singh MB, Blumenfeld H, Bogacz Fressola A, et al. A practical guide to the updated seizure classification 2025. Epileptic Disord. 2025;(July):1–18.
Fisher RS, Cross JH, French JA, Higurashi N, Hirsch E, Jansen FE, et al. Operational classification of seizure types by the International League Against Epilepsy: Position Paper of the ILAE Commission for Classification and Terminology. Epilepsia. 2017;58(4):522–30.
Berg AT, Berkovic SF, Brodie MJ, Buchhalter J, Cross JH, Van Emde Boas W, et al. Revised terminology and concepts for organization of seizures and epilepsies: Report of the ILAE Commission on Classification and Terminology, 2005-2009. Epilepsia. 2010;51(4):676–85.
Beniczky S, Tatum WO, Blumenfeld H, Stefan H, Mani J, Maillard L, et al. Seizure semiology: ILAE glossary of terms and their significance. Epileptic Disord. 2022;24(3):447–95.
Kwan P, Arzimanoglou A, Berg AT, Brodie MJ, Hauser WA, Mathern G, et al. Definition of drug resistant epilepsy: Consensus proposal by the ad hoc Task Force of the ILAE Commission on Therapeutic Strategies. Epilepsia. 2010;51(6):1069–77.
Dingledine R, Varvel NH, Ravizza T et al. Neuroinflammation in Epilepsy: Cellular and Molecular Mechanisms. In: In: Noebels JL, Avoli M, Rogawski MA et al., editor. Jasper’s Basic Mechanisms of the Epilepsies. 5th ed. New York: Oxford University Press; 2024.; 2024.
Kinboshi M, Ikeda A, Ohno Y. Role of Astrocytic Inwardly Rectifying Potassium (Kir) 4.1 Channels in Epileptogenesis. Front Neurol. 2020;11(December):1–10.
Guo Y, Lin Z, Fan Z, Tian X. Epileptic brain network mechanisms and neuroimaging techniques for the brain network. Neural Regen Res. 2024;19(12):2637–48.
Kobow K, Blümcke I. Epigenetic mechanisms in epilepsy. Vol. 213, Progress in Brain Research. 2014. 279–316 p.
Yang W, Cui H, Wang C, Wang X, Yan C, Cheng W. A review of the pathogenesis of epilepsy based on the microbiota-gut-brain-axis theory. Front Mol Neurosci. 2024;17(October).
Catterall WA, Kalume F, Oakley JC. NaV1.1 channels and epilepsy. J Physiol. 2010;588(11):1849–59.
Wolff M, Johannesen KM, Hedrich UBS, Masnada S, Rubboli G, Gardella E, et al. Genetic and phenotypic heterogeneity suggest therapeutic implications in SCN2A-related disorders. Brain. 2017;140(5):1316–36.
Brunklaus A, Ellis R, Reavey E, Semsarian C, Zuberi SM. Genotype phenotype associations across the voltage-gated sodium channel family. J Med Genet. 2014;51(10):650–8.
di Raimondo D, Miceli G, Musiari G, Tuttolomondo A, Pinto A. New insights about the putative role of myokines in the context of cardiac rehabilitation and secondary cardiovascular prevention. Ann Transl Med. 2017;5(15):1–14.
Punke MA, Friederich P. Amitriptyline is a potent blocker of human Kv1.1 and Kv7.2/7.3 channels. Anesth Analg. 2007;104(5):1256–64.
Cain SM, Snutch TP. T-type calcium channels in burst-firing, network synchrony, and epilepsy. Biochim Biophys Acta - Biomembr [Internet]. 2013;1828(7):1572–8. Available from: http://dx.doi.org/10.1016/j.bbamem.2012.07.028
Viviani B, Bartesaghi S, Gardoni F, Vezzani A, Behrens MM, Bartfai T, et al. Interleukin-1β enhances NMDA receptor-mediated intracellular calcium increase through activation of the Src family of kinases. J Neurosci. 2003;23(25):8692–700.
Aida T, Yoshida J, Nomura M, Tanimura A, Iino Y, Soma M, et al. Astroglial glutamate transporter deficiency increases synaptic excitability and leads to pathological repetitive behaviors in mice. Neuropsychopharmacology. 2015;40(7):1569–79.
Öz Tunçer G, Teber S, Albayrak P, Kutluk MG, Deda G. A case of Dravet Syndrome with a newly defined mutation in the SCN1A gene. Turk Pediatr Ars. 2018;53(4):259–62.
Singh NA, Westenskow P, Charlier C, Pappas C, Leslie J, Dillon J, et al. KCNQ2 and KCNQ3 potassium channel genes in benign familial neonatal convulsions: Expansion of the functional and mutation spectrum. Brain. 2003;126(12):2726–37.
Baulac S, Baldassari S. DEPDC5 -Related Epilepsy [Internet]. In: Adam MP, Feldman J, Mirzaa GM, et al. editors., editor. Seattle (WA): University of Washington, Seattle; 1993-2025.; 1–21 p. Available from: https://www.ncbi.nlm.nih.gov/books/
Heyne HO, Pajuste FD, Wanner J, Daniel Onwuchekwa JI, Mägi R, Palotie A, et al. Polygenic risk scores as a marker for epilepsy risk across lifetime and after unspecified seizure events. Nat Commun [Internet]. 2024;15(1):1–11. Available from: http://dx.doi.org/10.1038/s41467-024-50295-z
Oliver KL, Ellis CA, Scheffer IE, Ganesan S, Leu C, Sadleir LG, et al. Common risk variants for epilepsy are enriched in families previously targeted for rare monogenic variant discovery. eBioMedicine [Internet]. 2022;81:104079. Available from: https://doi.org/10.1016/j.ebiom.2022.104079
Wang Y, Zhuo Z, Wang H. Epilepsy, gut microbiota, and circadian rhythm. Front Neurol. 2023;14(May):1–11.
Tanaka T, Ihara M, Fukuma K, Mishra NK, Koepp MJ, Guekht A, et al. Pathophysiology, Diagnosis, Prognosis, and Prevention of Poststroke Epilepsy Clinical and Research Implications. Neurology. 2024;102(11):1–12.
Fisher RS, Acevedo C, Arzimanoglou A, Bogacz A, Cross JH, Elger CE, et al. ILAE Official Report: A practical clinical definition of epilepsy. Epilepsia. 2014;55(4):475–82.
Curia G, Longo D, Biagini G, Jones RSG, Avoli M. The pilocarpine model of temporal lobe epilepsy. J Neurosci Methods [Internet]. 2008;172(2):143–57. Available from: http://dx.doi.org/10.1016/j.jneumeth.2008.04.019
Scorza FA, Arida RM, Naffah-Mazzacoratti M da G, Scerni DA, Calderazzo L, Cavalheiro EA. The pilocarpine model of epilepsy: What have we learned? An Acad Bras Cienc. 2009;81(3):345–65.
Heysieattalab S, Sadeghi L. Dynamic structural neuroplasticity during and after epileptogenesis in a pilocarpine rat model of epilepsy. Acta Epileptol. 2021;3(1).
Vasović D, Stanojlović O, Hrnčić D, Šutulović N, Vesković M, Ristić AJ, et al. Dose-Dependent Induction of Differential Seizure Phenotypes by Pilocarpine in Rats: Considerations for Translational Potential. Med. 2024;60(10).
Melda Ateş HH. Animal Models of Epilepsy. J Exp Basic Med Sci. 2020;1(3):113–6.
Matovu D, Cavalheiro EA. Differences in Evolution of Epileptic Seizures and Topographical Distribution of Tissue Damage in Selected Limbic Structures Between Male and Female Rats Submitted to the Pilocarpine Model. Front Neurol. 2022;13(April).
Lévesque M, Avoli M. The kainic acid model of temporal lobe epilepsy. Neurosci Biobehav Rev. 2013;37(10):2887–99.
Rusina E, Bernard C, Williamson A. The kainic acid models of temporal lobe epilepsy. eNeuro. 2021;8(2).
Schwob JE, Fuller T, Price JL OJ. Widespread patterns of neuronal damage following systemic or intracerebral injections of kainic acid: a histological study. Neuroscience. 1980;5:991–104.
Furtinger S, Bettler B, Sperk G. Altered expression of GABAB receptors in the hippocampus after kainic-acid-induced seizures in rats. Mol Brain Res. 2003;113(1–2):107–15.
Rubio C, Rubio-Osornio M, Retana-Márquez S, López M, Custodio V, Paz C. In Vivo Experimental Models of Epilepsy. Cent Nerv Syst Agents Med Chem. 2010;10(55):298–309.
Sperk G. Kainic acid seizures in the rat. Prog Neurobiol. 1994;42(1):1–32.
Shimada T, Yamagata K. Pentylenetetrazole-induced kindling mouse model. J Vis Exp. 2018;2018(136):1–10.
Monteiro ÁB, Alves AF, Ribeiro Portela AC, Oliveira Pires HF, Pessoa de Melo M, Medeiros Vilar Barbosa NM, et al. Pentylenetetrazole: A review. Neurochem Int. 2024;180(August).
Samokhina E, Samokhin A. Neuropathological profile of the pentylenetetrazol (PTZ) kindling model. Int J Neurosci [Internet]. 2018;128(11):1086–96. Available from: https://doi.org/10.1080/00207454.2018.1481064
Ngoupaye GT, Adassi MB, Foutsop AF, Yassi FB, Ngo Bum E. Pentylenetetrazole kindling-induced epilepsy rat models: Insight on the severity state, a comparative study. IBRO Neurosci Reports [Internet]. 2022;13(August):164–76. Available from: https://doi.org/10.1016/j.ibneur.2022.08.003
Toscano EC d. B, Vieira ÉLM, Portela ACDC, Reis JLJ, Caliari M V., Giannetti A V., et al. Bcl-2/Bax ratio increase does not prevent apoptosis of glia and granular neurons in patients with temporal lobe epilepsy. Neuropathology. 2019;39(5):348–57.
Akdogan, I., & Goksin N. Experimental Epilepsy Models and Morphologic Alterations of Experimental Epilepsy Models in Brain and Hippocampus. InTech0pen. 2011;
Jung ME, Lal H, Gatch MB. The discriminative stimulus effects of pentylenetetrazol as a model of anxiety: Recent developments. Neurosci Biobehav Rev. 2002;26(4):429–39.
Löscher W. Critical review of current animal models of seizures and epilepsy used in the discovery and development of new antiepileptic drugs. Seizure [Internet]. 2011;20(5):359–68. Available from: http://dx.doi.org/10.1016/j.seizure.2011.01.003
Chen RC, Huang YH, How SW. Systemic penicillin as an experimental model of epilepsy. Exp Neurol. 1986;92(3):533–40.
Akdogan I, Adiguzel E, Yilmaz I, Ozdemir MB, Sahiner M, Tufan AC. Penicillin-induced epilepsy model in rats: Dose-dependant effect on hippocampal volume and neuron number. Brain Res Bull. 2008;77(4):172–7.
Dragic S, Pavlovic V. Penicillin Epilepsy in Rats. Acta Medica Median [Internet]. 2004;43(4):19–23. Available from: https://www.researchgate.net/publication/40765359_PENICILLIN_EPILEPSY_IN_RATS
Kılıç Ü, Demir Ş, Beyazçiçek E, Beyazçiçek Ö, Soytürk H. The Effects of Acute and Chronic Metformin Treatment on Penicillin Induced Epileptiform Activity in Rats. J Acad Res Med. 2022;12(2):87–98.
Ribak CE, Bradburne RM, Harris AB. A preferential loss of gabaergic, symmetric synapses in epileptic foci: A quantitative ultrastructural analysis of monkey neocortex. J Neurosci. 1982;2(12):1725–35.
Rubio C, Romo-Parra H, López-Landa A, Rubio-Osornio M. Classification of Current Experimental Models of Epilepsy. Brain Sci. 2024;14(10):1–24.
Avoli M. Feline generalized penicillin epilepsy. Ital J Neurol Sci. 1995;16(1–2):79–82.
Esat Adıguzel A, Ilgaz Akdogan, S. Ender Duzcan Act. Effect of Penıcıllın Induced Epılepsy Seızure on Granulare Cell Layer of Dentate Gyrus in Rat: A Stereologıcal Study. Neurosci Res Commun. 2002;31(1982):101–9.
Ni H, Jiang Y wu, Tao L yuang, Cen J nong, Wu X ru. Effects of penicillin-induced developmental epilepticus on hippocampal regenerative sprouting, related gene expression and cognitive deficits in rats. Toxicol Lett. 2009;188(2):161–6.
Zhu X, Chen Y, Du Y, Wan Q, Xu Y, Wu J. Astragaloside IV attenuates penicillin-induced epilepsy via inhibiting activation of the MAPK signaling pathway. Mol Med Rep. 2018;17(1):643–7.
Osharina V, Aarabi A, Manoochehri M, Mahmoudzadeh M, Wallois F. Hemodynamic Changes Associated with Interictal Spikes Induced by Acute Models of Focal Epilepsy in Rats: A Simultaneous Electrocorticography and Near-Infrared Spectroscopy Study. Brain Topogr. 2017;30(3):390–407.
Twyman R, Green R, Macdonald R. Kinetics of open channel bock by penicillin of single GABA. J Physiol. 1992;445:97–127.
Matsumoto H, Marsan CA. Cortical cellular phenomena in experimental epilepsy: Ictal manifestations. Exp Neurol. 1964;9(4):305–26.
Akdogan I, Goksin N. Experimental Epilepsy Models and Morphologic Alterations of Experimental Epilepsy Models in Brain and Hippocampus,Underlying Mechanisms of Epilepsy. Croat InTech. 2011;269–82.
Goddard G V., McIntyre DC, Leech CK. A permanent change in brain function resulting from daily electrical stimulation. Exp Neurol. 1969;25(3):295–330.
McNamara JO. Kindling model of epilepsy. Adv Neurol. 1986;44(303-18.).
Morimoto K, Fahnestock M, Racine RJ. Kindling and status epilepticus models of epilepsy: Rewiring the brain. Prog Neurobiol. 2004;73(1):1–60.
Löscher W. Animal Models of Seizures and Epilepsy: Past, Present, and Future Role for the Discovery of Antiseizure Drugs. Neurochem Res. 2017;42(7):1873–88.
Griffin A, Hamling KR, Hong SG, Anvar M, Lee LP, Baraban SC. Preclinical animal models for Dravet syndrome: Seizure phenotypes, comorbidities and drug screening. Front Pharmacol. 2018;9(JUN):1–15.
John K. Mich et al. Interneuron-specific dual-AAV SCN1A gene replacement corrects epileptic phenotypes in mouse models of Dravet syndrome. Sci Transl Med. 2025;17(eadn5603).
Kuo FS, Cleary CM, Loturco JJ, Chen X, Mulkey DK. Disordered breathing in a mouse model of Dravet syndrome. Elife. 2019;8.
Borowicz-Reutt K, Czernia J, Krawczyk M. Genetic Background of Epilepsy and Antiepileptic Treatments. Int J Mol Sci. 2023;24(22).
Brun L, Viemari JC, Villard L. Mouse models of Kcnq2 dysfunction. Epilepsia. 2022;63(11):2813–26.
Scott KEJ, Hermosillo Arrieta MF, Williams AJ. Deciphering SCN2A: A comprehensive review of rodent models of Scn2a dysfunction. Epilepsia. 2025;(August):1–15.
Kearney JA, Yang Y, Beyer B, Bergren SK, Claes L, DeJonghe P, et al. Severe epilepsy resulting from genetic interaction between Scn2a and Kcnq2. Hum Mol Genet. 2006;15(6):1043–8.
Coenen AML, Van Luijtelaar ELJM. Genetic Animal Models for Absence Epilepsy: A Review of the WAG/Rij Strain of Rats. Behav Genet. 2003;33(6):635–55.
Sitnikova E. Sleep Disturbances in Rats With Genetic Pre-disposition to Spike-Wave Epilepsy (WAG/Rij). Front Neurol. 2021;12(November):1–6.
Sarıyıldız Ö, Erdeve ET, Mutlu N, Turan TT, Yılmaz NÇ, Onat FY. Amygdala Kindling Resistance in Rats with Genetic Absence Epilepsy: Role of Sex Differences. Arch Epilepsy. 2025;31(2):42–6.
Lakaye B, Nguyen L. Genetic Animal Models of Idiopathic Generalized Epilepsies: What Can We Learn from Them? Biomedicines. 2025;13(6):1–39.