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  • Title: Homing of lymphocytes to the inner ear.
    Author: Gloddek B, Ryan AF, Harris JP.
    Journal: Acta Otolaryngol; 1991; 111(6):1051-9. PubMed ID: 1763625.
    Abstract:
    The migration of lymphocytes to the inner ear was studied during an immune response in the cochlea. Sensitized lymphocytes from peripheral blood, neck lymph nodes and spleen from strain 13 inbred guinea pigs were labelled with 51Cr and injected intravenously into strain 13 recipients undergoing an inner ear immune response. Eighteen hours later the temporal bones and immune organs of the recipients were assayed for radioactivity to detect the infiltration of labelled cells. In addition autoradiography was performed to localize labelled cells in the inner ear. More lymphocytes from the peripheral blood entered the inner ear during the immune response than spleen or lymph node cells. This indicates that the inner ear comes under the immuno-surveillance of the peripheral circulation in response to antigenic stimulation. Most labelled lymphocytes were observed in the basal turn of the scala tympani and in and around the spiral modiolar vein of the challenged cochlea. A few cells were seen also in the control cochleas but almost all where inside the blood vessels. This pattern suggests that the blood vessels of the spiral modiolar vein are the initial site through which lymphocytes entered the inner ear.
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