Injury-specific factors in the cerebrospinal fluid regulate astrocyte plasticity in the human brain

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The glial environment influences neurological disease progression, yet much of our knowledge still relies on preclinical animal studies, especially regarding astrocyte heterogeneity. In murine models of traumatic brain injury, beneficial functions of proliferating reactive astrocytes on disease outcome have been unraveled, but little is known regarding if and when they are present in human brain pathology. Here we examined a broad spectrum of pathologies with and without intracerebral hemorrhage ...

Total protein content of CSF samples was measured by Bradford assay (BioRad, Feldkirchen, Germany)and 10μg per sample were proteolysed by the commercially available in-StageTip-NHS kit (PreOmics GmbH, Martinsried, Germany) according to the manufacturer's protocol. Briefly, CSF was reduced and alkylated and incubated for 3 hrs at 37°C with Lys-C and trypsin. Resulting peptides were dried for short term storage at -80°C. Prior to measurement, peptides were resuspended in 2% acetonitrile and 0.5% ...