Summary
Sera from patients with paraneoplastic cerebellar degeneration have been shown to contain high titers of antibody to human Purkinje cells. It is not known, however, whether these sera react with cerebellar material from species other than man. The present study was conducted to determine whether cerebellar tissue of nonhuman species could be used to screen human sera for anticerebellar antibodies and whether similarities in cerebellar antigens between nonhuman and human material might permit attempts to transmit cerebellar degeneration to experimental animals by passive transfer of patient sera. Sections of human, monkey, pig, sheep, cat, rabbit, and rat cerebellar tissue were overlaid with serial dilutions of positive sera from patients with cancer and with paraneoplastic cerebellar degeneration and were stained using indirect immunofluorescence methods. All sera stained specific Purkinje cells when reacted with monkey, pig, and rabbit cerebellar sections, but not all sera stained sheep, cat, or rat tissue. Immunofluorescent labeling of animal cerebellar tissue was less bright than that obtained with human cerebellar sections, and anticerebellar antibody titers were invariably lower when assayed with nonhuman than with human material. Although human anticerebellar antibodies react with cerebellar tissue from other animal species, patient-to-patient variation in staining is sufficiently great that not all patient sera might be suitable for passive transfer experiments, and that attempts to identify anticerebellar antibodies by reacting patient sera with nonhuman cerebellar tissue could be negative where these antibodies are in fact present and could be demonstrated using human material.
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Greenlee, J.E., Sun, M. Immunofluorescent labeling of nonhuman cerebellar tissue with sera from patients with systemic cancer and paraneoplastic cerebellar degeneration. Acta Neuropathol 67, 226–229 (1985). https://doi.org/10.1007/BF00687805
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DOI: https://doi.org/10.1007/BF00687805