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Alemtuzumab treatment exemplifies discordant immune effects of blood and cerebrospinal fluid in multiple sclerosis.

Apr 1, 2023

Supporting the differential diagnosis of connective tissue diseases with neurological involvement by blood and cerebrospinal fluid flow cytometry

Feb 1, 2023

Intratumor heterogeneity and T cell exhaustion in primary CNS lymphoma
Intratumor heterogeneity and T cell exhaustion in primary CNS lymphoma

Sep 24, 2022

High-dimensional investigation of the cerebrospinal fluid to explore and monitor CNS immune responses.

Aug 1, 2022

Stroke induces disease-specific myeloid cells in the brain parenchyma and pia
Stroke induces disease-specific myeloid cells in the brain parenchyma and pia

We deeply characterize tissue-resident leukocytes in meninges and brain parenchyma and discover that leukocytes respond differently to stroke depending on their site of residence. We thereby discover a unique phenotype of myeloid cells exclusive to the brain after stroke. These stroke-associated myeloid cells partially resemble neurodegenerative disease-associated microglia. They are mainly of resident microglial origin, partially conserved in humans and exhibit a lipid-phagocytosing phenotype. Blocking markers specific for these cells partially ameliorates stroke outcome thus providing a potential therapeutic target.

Feb 1, 2022

Intraocular dendritic cells characterize HLA-B27-associated acute anterior uveitis
Intraocular dendritic cells characterize HLA-B27-associated acute anterior uveitis

Nov 1, 2021

Bcl6 controls meningeal Th17-B cell interaction in murine neuroinflammation.
Bcl6 controls meningeal Th17-B cell interaction in murine neuroinflammation.

By generating a compartment-specific transcriptional map of meningeal versus parenchymal leukocytes in experimental neuroinflammation, we found a follicular phenotype of meningeal B cells and a corresponding follicular helper-like phenotype in meningeal Th17 cells. The meninges thus instructed a site-specific local phenotype to proinflammatory autoreactive T cells. We identified the transcription factor Bcl6 in Th17 cells to promote interactions with meningeal B cells, isotype-switching, and B cell-supporting chemokines. This may describe a mechanism controlling meningeal autoimmunity and helps understanding how the meninges, as a recently recognized immunologically active site, contribute to autoimmune tissue damage in multiple sclerosis.

Sep 1, 2021

Cerebrospinal fluid flow cytometry distinguishes psychosis spectrum disorders from differential diagnoses
Cerebrospinal fluid flow cytometry distinguishes psychosis spectrum disorders from differential diagnoses

We performed basic CSF analysis and multi-dimensional flow cytometry of CSF and blood cells from 59 patients with primary psychotic disorders in comparison to inflammatory and non-inflammatory controls. We found an expansion of monocytes in the blood and CSF of psychosis patients. A machine learning model incorporating blood and CSF parameters differentated psychosis from non-inflammatory controls better than individual paramaters.

Aug 1, 2021

Single-cell profiling of CNS border compartment leukocytes reveals that B cells and their progenitors reside in non-diseased meninges.
Single-cell profiling of CNS border compartment leukocytes reveals that B cells and their progenitors reside in non-diseased meninges.

Based on single-cell transcriptomics, we here identify a highly location-specific composition and expression profile of tissue-resident leukocytes in CNS border compartments featuring B cells and their progenitors in the dura as an unexpected site of B cell residence.

Jul 1, 2021

Neurological Manifestations of COVID-19 Feature T Cell Exhaustion and Dedifferentiated Monocytes in Cerebrospinal Fluid
Neurological Manifestations of COVID-19 Feature T Cell Exhaustion and Dedifferentiated Monocytes in Cerebrospinal Fluid

We utilized single-cell sequencing and examined the immune cell profiles from the cerebrospinal fluid of Neuro-COVID patients and discovered an expansion of dedifferentiated monocytes and exhausted CD4+ T cells.

Jan 1, 2021