Research Group Käufer

Bridging Infections, Neuroinflammation, and Neurodegeneration

Our group investigates how acute infectious and inflammatory insults—particularly viral pathogens—trigger chronic neurodegenerative processes and proteinopathies. We aim to identify the mechanistic links between pathogen-induced neuroinflammation and the onset of diseases such as Parkinson's, following a One Health perspective that bridges veterinary and human medicine.

Christopher Käufer, PhD Group Leader (Habilitand)

Core Research Areas

  • Pathogen-Driven Proteinopathy: Investigating the role of viral triggers (e.g., SARS-CoV-2, Zika, TMEV) in the accumulation of alpha-synuclein and other neurodegenerative markers.
  • Neuro-Immune Interactions: Dissecting the contributions of peripheral immune cell infiltration and resident microglia to CNS damage and long-term neurological sequelae.
  • Sex Differences in Neuroinfection: Researching how sex-specific factors and endocrine metabolism influence neuroinflammatory outcomes (Active focus within the COFONI network).

Methodological Expertise

We utilize a multidisciplinary approach to bridge the gap from basic mechanisms to clinical relevance:

  • Advanced In Vivo Models: Specialized models for viral encephalitis, synucleinopathies, neurodegeneration and blood-brain barrier pathology.
  • Pharmacological Characterization: Rigorous evaluation including dose-finding studies, pharmacokinetic (PK) profiling, and adverse effect assessment.
  • Molecular Pathology: High-resolution analysis of protein homeostasis, neuroinflammation markers, and glial-neuronal interactions.
  • Behavioral Phenotyping: Longitudinal assessment of motor and cognitive functions in neurodegenerative and post-infectious models.

Publications by Christopher Käufer

Find out more on Orcid.org 

Greimel, E., Waltl, I., Busker, L., Pavlou, A., Käufer, C., Höglinger, G., Richter, F., & Kalinke, U. (2025). The impact of central nervous system viral infection on Parkinson’s disease pathogenesis. In 18th Graduate School Day: 21 November 2025 : abstract book (ZSN P 11). Stiftung Tierärztliche Hochschule Hannover.
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Kefalakes, E., Mewes, F., Peristich, D., Plötner, C., Shcherbatyy, V., Schipke, J., Schneider, F., Käufer, C., & Rumpel, R. (2025). A holistic rat model to investigate therapeutic interventions in Parkinson’s disease: viral induction of a slow-progressing motor phenotype, dopaminergic degeneration and early microglia neuroinflammation. Brain Research Bulletin, 230, Article 111464. https://doi.org/10.1016/j.brainresbull.2025.111464
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Käufer, C., Stanojlović, M., Schidlitzki, A., Bonsberger, J., Storch, A., & Richter, F. (2025). Alterations in non-REM sleep and EEG spectra precede REM-sleep deficits in a model of synucleinopathy. Journal of Parkinson’s Disease: JPD, 15(2), 311–328. https://doi.org/10.1177/1877718X241310723
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Lai, T. T., Xiang, W., Stanojlovic, M., Käufer, C., Feja, M., Lau, K., Zunke, F., & Richter, F. (2025). The basolateral amygdala and striatum propagate alpha-synuclein pathology causing increased fear response in a Parkinson’s disease model. Brain, Behavior, and Immunity: An International Journal, 128, 469–486. https://doi.org/10.1016/j.bbi.2025.04.025
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Schreiber, C. S., Ramil, L. N., Bieligk, J., Meineke, R., Käufer, C., & Richter, F. (2025). Intravenous SARS-CoV-2 Spike protein induces neuroinflammation and alpha-synuclein accumulation in brain regions relevant to Parkinson’s disease. Brain, Behavior, and Immunity: An International Journal, 129, 102–123. https://doi.org/10.1016/j.bbi.2025.05.021
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Lau, K., Hartke, A.-S., Käufer, C., & Richter, F. (2024). Gut bacterial toxin exacerbates blood-brain barrier alterations in a mouse model of Parkinson’s disease. In 17th Graduate School Day: 22/23 November 2024 : abstract book (ZSN T 09). Stiftung Tierärztliche Hochschule Hannover.
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Schreiber, C. S., Wiesweg, I., Stanelle-Bertram, S., Beck, S., Kouassi, N. M., Schaumburg, B., Gabriel, G., Richter, F., & Käufer, C. (2024). Sex-specific biphasic alpha-synuclein response and alterations of interneurons in a COVID-19 hamster model. EBioMedicine, 105, Article 105191. https://doi.org/10.1016/j.ebiom.2024.105191
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Hartke, A.-S., Waltl, I., Kalinke, U., Richter, F., & Käufer, C. (2023). The interplay of Lipopolysaccharide and alpha-Synuclein exacerbates neuroinflammation. In 16th Graduate School Day: 24/25 November 2023 : abstract book (ZSN T 04). Stiftung Tierärztliche Hochschule Hannover.
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Lai, T. T., Xiang, W., Lau, K., Hollasch, P., Kaczmarek, E., Stelz, S., Wiesweg, I., Gericke, B., Käufer, C., Feja, M., Zunke, F., & Richter, F. (2023). Deciphering the spatial and temporal contribution of alpha-synuclein associated pathology to anxiety-like behaviors of Parkinson’s disease. In 16th Graduate School Day: 24/25 November 2023 : abstract book (ZSN T 08). Stiftung Tierärztliche Hochschule Hannover.
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Lau, K., Porschen, L., Hartke, A.-S., Käufer, C., Gericke, B., & Richter, F. (2023). Gut bacterial toxin further enhances blood-brain barrier alternations in a progressive mouse model of Parkinson’s disease. In 16th Graduate School Day: 24/25 November 2023 : abstract book (ZSN P 09). Stiftung Tierärztliche Hochschule Hannover.
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