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Nat Commun ; 15(1): 4778, 2024 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-38862479

RESUMO

Impairment of the central nervous system (CNS) poses a significant health risk for astronauts during long-duration space missions. In this study, we employed an innovative approach by integrating single-cell multiomics (transcriptomics and chromatin accessibility) with spatial transcriptomics to elucidate the impact of spaceflight on the mouse brain in female mice. Our comparative analysis between ground control and spaceflight-exposed animals revealed significant alterations in essential brain processes including neurogenesis, synaptogenesis and synaptic transmission, particularly affecting the cortex, hippocampus, striatum and neuroendocrine structures. Additionally, we observed astrocyte activation and signs of immune dysfunction. At the pathway level, some spaceflight-induced changes in the brain exhibit similarities with neurodegenerative disorders, marked by oxidative stress and protein misfolding. Our integrated spatial multiomics approach serves as a stepping stone towards understanding spaceflight-induced CNS impairments at the level of individual brain regions and cell types, and provides a basis for comparison in future spaceflight studies. For broader scientific impact, all datasets from this study are available through an interactive data portal, as well as the National Aeronautics and Space Administration (NASA) Open Science Data Repository (OSDR).


Assuntos
Encéfalo , Neurônios , Voo Espacial , Animais , Camundongos , Feminino , Encéfalo/metabolismo , Encéfalo/patologia , Neurônios/metabolismo , Transcriptoma , Neurogênese , Análise de Célula Única , Camundongos Endogâmicos C57BL , Transmissão Sináptica , Ausência de Peso/efeitos adversos , Astrócitos/metabolismo , Estresse Oxidativo , Perfilação da Expressão Gênica , Multiômica
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