Dynamic miRNA changes during the process of epileptogenesis in an infantile and adult-onset model

0542678 - FGÚ 2022 RIV GB eng J - Článek v odborném periodiku
Bencúrová, P. - Baloun, J. - Hynšt, J. - Oppelt, J. - Kubová, Hana - Pospíšilová, Š. - Brázdil, M.
Dynamic miRNA changes during the process of epileptogenesis in an infantile and adult-onset model.
Scientific Reports. Roč. 11, č. 1 (2021), č. článku 9649. ISSN 2045-2322. E-ISSN 2045-2322
Grant CEP: GA ČR(CZ) GA16-04726S
Výzkumná infrastruktura: NCMG - 90091
Institucionální podpora: RVO:67985823
Klíčová slova: miRNA * temporal lobe epilepsy * immature brain * status epilepticus
Obor OECD: Neurosciences (including psychophysiology
Impakt faktor: 4.997, rok: 2021
Způsob publikování: Open access
https://doi.org/10.1038/s41598-021-89084-9

Temporal lobe epilepsy (TLE) is the most common epilepsy type. TLE onset in infancy aggravates features like severity, drug responsiveness, or development of comorbidities. These aggravations may arise from altered micro RNA (miRNA) expression specific to the early onset of the disease. Although the miRNA involvement in TLE is widely studied, the relationship between the onset-age and miRNA expression has not been addressed. Here, we investigated the miRNA profile of infantile and adult-onset TLE in rats combining sequencing and PCR. Since miRNA expression changes with the disease progression, we scrutinized miRNA dynamics across three stages: acute, latent, and chronic. We report that infantile-onset TLE leads to changes in the expression of fewer miRNAs across these stages. Interestingly, the miRNA profile in the acute stage of infantile-onset TLE overlaps in dysregulation of miR-132-5p, -205, and -211-3p with the chronic stage of the disease starting in adulthood. The analysis of putative targets linked the majority of dysregulated miRNAs with pathways involved in epilepsy. Our profiling uncovered miRNA expression characteristic for infantile and adulthood-onset epileptogenesis, suggesting the distinct biology underlying TLE in the onset age-dependent matter. Our results indicate the necessity of addressing the onset age as an important parameter in future epilepsy research.
Trvalý link: http://hdl.handle.net/11104/0320058