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Proteins related to ictogenesis and seizure clustering in chronic epilepsy.
Lee, Woo-Jin; Moon, Jangsup; Lim, Jung-Ah; Jeon, Daejong; Yoo, Jung-Suk; Park, Dong-Kyu; Han, Dohyun; Lee, Soon-Tae; Jung, Keun-Hwa; Park, Kyung-Il; Lee, Sang Kun; Chu, Kon.
Afiliação
  • Lee WJ; Department of Neurology, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
  • Moon J; Program in Neuroscience, Neuroscience Research Institute of SNUMRC, Seoul National University College of Medicine, Seoul, South Korea.
  • Lim JA; Department of Neurology, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
  • Jeon D; Program in Neuroscience, Neuroscience Research Institute of SNUMRC, Seoul National University College of Medicine, Seoul, South Korea.
  • Yoo JS; Department of Genomic Medicine, Seoul National University Hospital, Seoul, South Korea.
  • Park DK; Department of Neurology, Cham Joeun Hospital, Gwangju, South Korea.
  • Han D; Advanced Neural Technologies, Seoul, South Korea.
  • Lee ST; Department of Neurology, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
  • Jung KH; Department of Neurology, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
  • Park KI; Proteomics Core Facility, Biomedical Research Institute, Seoul National University Hospital, Seoul, South Korea.
  • Lee SK; Department of Neurology, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
  • Chu K; Program in Neuroscience, Neuroscience Research Institute of SNUMRC, Seoul National University College of Medicine, Seoul, South Korea.
Sci Rep ; 11(1): 21508, 2021 11 02.
Article em En | MEDLINE | ID: mdl-34728717
ABSTRACT
Seizure clustering is a common phenomenon in epilepsy. Protein expression profiles during a seizure cluster might reflect the pathomechanism underlying ictogenesis. We performed proteomic analyses to identify proteins with a specific temporal expression pattern in cluster phases and to demonstrate their potential pathomechanistic role. Pilocarpine epilepsy model mice with confirmed cluster pattern of spontaneous recurrent seizures by long-term video-electroencpehalography were sacrificed at the onset, peak, or end of a seizure cluster or in the seizure-free period. Proteomic analysis was performed in the hippocampus and the cortex. Differentially expressed proteins (DEPs) were identified and classified according to their temporal expression pattern. Among the five hippocampal (HC)-DEP classes, HC-class 1 (66 DEPs) represented disrupted cell homeostasis due to clustered seizures, HC-class 2 (63 DEPs) cluster-onset downregulated processes, HC-class 3 (42 DEPs) cluster-onset upregulated processes, and HC-class 4 (103 DEPs) consequences of clustered seizures. Especially, DEPs in HC-class 3 were hippocampus-specific and involved in axonogenesis, synaptic vesicle assembly, and neuronal projection, indicating their pathomechanistic roles in ictogenesis. Key proteins in HC-class 3 were highly interconnected and abundantly involved in those biological processes. This study described the seizure cluster-associated spatiotemporal regulation of protein expression. HC-class 3 provides insights regarding ictogenesis-related processes.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pilocarpina / Convulsões / Córtex Cerebral / Proteoma / Epilepsia / Hipocampo Tipo de estudo: Etiology_studies Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pilocarpina / Convulsões / Córtex Cerebral / Proteoma / Epilepsia / Hipocampo Tipo de estudo: Etiology_studies Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article