LYME DISEASE ARTICLE SHOWS AGGRESSIVE NEURON BRAIN INJURY MS ALS Amyotrophic lateral sclerosis AUTISM STROKE SEIZURES Invasion of human neuronal and glial cells by an infectious strain of Borrelia burgdorferi

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Invasion of human neuronal and glial cells by an infectious strain of Borrelia burgdorferi [Lyme disease]

Centers for Disease Control and Prevention


Human infection by Borrelia burgdorferi, the … agent for Lyme disease, can result in serious acute and late-term disorders including neuroborreliosis, a degenerative condition of the peripheral and central nervous systems [BOLD AND UNDERLINING FROM DR. SCHALLER]. To examine the mechanisms involved in the cellular pathogenesis of neuroborreliosis, we investigated the ability of B. burgdorferi to attach to and/or invade a panel of human neuroglial and cortical neuronal cells. In all neural cells tested, we observed B. burgdorferi in association with the cell by confocal microscopy. Further analysis by differential immunofluorescent staining of external and internal organisms, and a gentamicin protection assay demonstrated an intracellular localization of B. burgdorferi. A non-infectious strain of B. burgdorferi was attenuated in its ability to associate with these neural cells, suggesting that a specific borrelial factor related to cellular infectivity was responsible for the association. Cytopathic effects were not observed following infection of these cell lines with B. burgdorferi, and internalized spirochetes were found to be viable. Invasion of neural cells by B. burgdorferi provides a putative mechanism for the organism to avoid the host's immune response while potentially causing functional damage to neural cells during infection of the CNS.

Microbes Infect. 2006 Nov-Dec; 8 (14-15):2832-40. Epub 2006 Sep 22. Livengood JA, Gilmore RD Jr.

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