In-depth quantitative proteomic characterization of organotypic hippocampal slice culture reveals sex-specific differences in biochemical pathways
| Autor: | Jaques M.F. Souza, Consuelo M. R. de Lima, Leonardo Assis da Silva, Marcelo Valle de Sousa, Carlos André Ornelas Ricart, Manfred Auer, Diogo O. Souza, Alan Ribeiro Mól, Christianne Gazzana Salbego, Caroline Peres Klein, Juliana Bender Hoppe, Mariana Maier Gaelzer, Marina Firmino, Wagner Fontes, Nassim N. Ataii, Simone Nardin Weis |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Proteomics
Male Science Hippocampus Hippocampal formation Biology Mitochondrion Nervous System Article Microscopy Electron Transmission Downregulation and upregulation medicine Animals Humans Glycolysis Neurotransmitter Agents Sex Characteristics Multidisciplinary Neurodegeneration Glutamate receptor Neurochemistry Lipid metabolism Flow Cytometry Lipid Metabolism medicine.disease Cell biology Medicine Female Neuroglia Signal Transduction |
| Zdroj: | Scientific Reports Scientific Reports, Vol 11, Iss 1, Pp 1-18 (2021) |
| ISSN: | 2045-2322 |
| Popis: | Sex differences in the brain of mammals range from neuroarchitecture through cognition to cellular metabolism. The hippocampus, a structure mostly associated with learning and memory, presents high vulnerability to neurodegeneration and aging. Therefore, we explored basal sex-related differences in the proteome of organotypic hippocampal slice culture, a major in vitro model for studying the cellular and molecular mechanisms related to neurodegenerative disorders. Results suggest a greater prevalence of astrocytic metabolism in females and significant neuronal metabolism in males. The preference for glucose use in glycolysis, pentose phosphate pathway and glycogen metabolism in females and high abundance of mitochondrial respiration subunits in males support this idea. An overall upregulation of lipid metabolism was observed in females. Upregulation of proteins responsible for neuronal glutamate and GABA synthesis, along with synaptic associated proteins, were observed in males. In general, the significant spectrum of pathways known to predominate in neurons or astrocytes, together with the well-known neuronal and glial markers observed, revealed sex-specific metabolic differences in the hippocampus. TEM qualitative analysis might indicate a greater presence of mitochondria at CA1 synapses in females. These findings are crucial to a better understanding of how sex chromosomes can influence the physiology of cultured hippocampal slices and allow us to gain insights into distinct responses of males and females on neurological diseases that present a sex-biased incidence. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|