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https://observatorio.fm.usp.br/handle/OPI/41463
Title: | Hippocampal CA3 transcriptional modules associated with granule cell alterations and cognitive impairment in refractory mesial temporal lobe epilepsy patients |
Authors: | BANDO, Silvia Yumi; BERTONHA, Fernanda Bernardi; PIMENTEL-SILVA, Luciana Ramalho; OLIVEIRA, Joao Gabriel Mansano de; CARNEIRO, Marco Antonio Duarte; OKU, Mariana Hiromi Manoel; WEN, Hung-Tzu; CASTRO, Luiz Henrique Martins; MOREIRA-FILHO, Carlos Alberto |
Citation: | SCIENTIFIC REPORTS, v.11, n.1, article ID 10257, 16p, 2021 |
Abstract: | In about a third of the patients with epilepsy the seizures are not drug-controlled. The current limitation of the antiepileptic drug therapy derives from an insufficient understanding of epilepsy pathophysiology. In order to overcome this situation, it is necessary to consider epilepsy as a disturbed network of interactions, instead of just looking for changes in single molecular components. Here, we studied CA3 transcriptional signatures and dentate gyrus histopathologic alterations in hippocampal explants surgically obtained from 57 RMTLE patients submitted to corticoamygdalohippocampectomy. By adopting a systems biology approach, integrating clinical, histopathological, and transcriptomic data (weighted gene co-expression network analysis), we were able to identify transcriptional modules highly correlated with age of disease onset, cognitive dysfunctions, and granule cell alterations. The enrichment analysis of transcriptional modules and the functional characterization of the highly connected genes in each trait-correlated module allowed us to unveil the modules' main biological functions, paving the way for further investigations on their roles in RMTLE pathophysiology. Moreover, we found 15 genes with high gene significance values which have the potential to become novel biomarkers and/or therapeutic targets in RMTLE. |
Appears in Collections: | Artigos e Materiais de Revistas Científicas - FM/MNE Artigos e Materiais de Revistas Científicas - FM/MPE Artigos e Materiais de Revistas Científicas - HC/ICHC Artigos e Materiais de Revistas Científicas - LIM/36 Artigos e Materiais de Revistas Científicas - LIM/45 Artigos e Materiais de Revistas Científicas - LIM/62 |
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art_BANDO_Hippocampal_CA3_transcriptional_modules_associated_with_granule_cell_2021.PDF | publishedVersion (English) | 6.08 MB | Adobe PDF | View/Open |
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