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  • Title: Subacute sclerosing panencephalitis (SSPE): isolation of a defective variant of measles virus from brain obtained at autopsy.
    Author: Ueda S, Okuno Y, Hamamoto Y, Oya H.
    Journal: Biken J; 1975 Jun; 18(2):113-22. PubMed ID: 1180868.
    Abstract:
    A cytopathic agent causing formation of syncytial giant cells was isolated by co-cultivation of human embryonic lung cells with brain cells obtained at autopsy from a patient with subacute sclerosing panencephalitis. Measles specific intracellular immunofluorescence was detected in syncytial giant cells developed by the agent. Paramyxovirus-like nucleocapsids were observed by electron microscopy in nuclei of the syncytial giant cells. Measles specific immunofluorescence was also detected on the surface of unfixed syncytial giant cells. However, the synycytial giant cells did not produce either virions or hemogglutinin, and did not show hemadsorption of African green monkey red cells. Hence, the newly isolated agent seems to be a defective variant of measles virus, and was designated as the SSPE-"BIKEN" strain.
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