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News Beck 10.2019
An interneuron (bright, with long appendages) from the hippocampus of the rat. The finely branched axon (top left cloud) surrounds the cell bodies of pyramidal cells and can inhibit these effectively.
© Leonie Pothmann/Uni Bonn

Publication

Epilepsy: Function of "brake cells" disrupted

In some forms of epilepsy, the function of certain "brake cells" in the brain is presumed to be disrupted. This may be one of the reasons why the electrical malfunction is able to spread from the point of origin across large parts of the brain. A current study by the University of Bonn with members of the cluster of excellence ImmunoSensation2, in which researchers from Lisbon were also involved, points in this direction. The results are published in the renowned "Journal of Neuroscience".

Publication

Leonie Pothmann, Christian Klos, Oliver Braganza, Sarah Schmidt, Oihane Horno, Raoul-Martin Memmesheimer and Heinz Beck: Altered dynamics of canonical feed-back inhibition predicts increased burst transmission in chronic epilepsy; The Journal Of Neuroscience; https://doi.org/10.1523/JNEUROSCI.2594-18.2019

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Publication

Malaria Causes Permanent Damage to Phagocytes in the Spleen

—Macrophages formed in the bone marrow can only assume the function of embryonal phagocytes, or “scavenger cells,” to a certain degree according to a study by the University of Bonn and the Peter Doherty Institute for Infection and Immunity at the University of Melbourne. The researchers have demonstrated that malaria infection causes permanent damage to resident CD163 macrophages in the spleen, which are responsible for cleaning the blood, recycling iron and communicating with other cells involved in the body’s immune response.
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Tracking glioblastoma cell spread in human brain tissue

Publication

Core2Edge: How tumor cells conquer the brain

—Glioblastoma is an aggressive brain tumor that infiltrates deep into the surrounding brain tissue. Even after surgery, tumor cells remain in the brain and the tumor recurs. Bonn researchers have now developed Core2Edge, a model based entirely on human tissue that captures these hard-to-access infiltration zones at the tumor margin. The model enables investigation of the invasive front and direct assessment of new drug candidates in human tissue - without the need for animal testing. The study of the Brain Tumor Translational Research Group has now been published in Nature Protocols.
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Mikrochip zur Wiederherstellung zentralen Sehvermögens bei fortgeschrittener Makuladegeneration.

Publication

Approval of a Novel Retinal Implant Technology

—A novel retinal implant is offering people with geographic atrophy the opportunity to regain part of their central vision for the first time. Geographic atrophy is a severe late stage of age-related macular degeneration. An international research team led by Prof. Frank G. Holz of the UKB and the University of Bonn demonstrated in an international clinical trial that the majority of participants experienced significant improvements in visual acuity. The novel retinal implant technology has now received approval for routine clinical use in Europe, making it available beyond clinical trials.
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