Administration of autologous macrophages isolated from the abdominal cavity and stimulated in vitro with bacterial LPS to rats increased blood level of antibodies against α-synuclein. Antibody titer reached its maximum during week 5 of the experiment and exceeded the levels of anti-α-synuclein antibodies appeared in response to transplantation of non-stimulated macrophages. Brain immunohistochemistry showed that additional administration of LPS (250 μg/kg) to animals during week 4 after injection of LPS-stimulated macrophages led to α-synuclein accumulation in 9.4±3.2% dopaminergic neurons of the substantia nigra. These findings attest to induction of humoral immune response to α-synuclein in rats after administration of autologous LPS-stimulated macrophages, which can affect α-synuclein metabolism in dopaminergic neurons of the brain.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 150, No. 10, pp. 376–378, October, 2010.
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Sergeyeva, T.N., Sergeyev, V.G. Administration of LPS-Stimulated Autologous Macrophages Induces α-Synuclein Aggregation in Dopaminergic Neurons of Rat Brain. Bull Exp Biol Med 150, 406–408 (2011). https://doi.org/10.1007/s10517-011-1153-y
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DOI: https://doi.org/10.1007/s10517-011-1153-y