Malignant transformation of hamster brain cells in vitro by human papovavirus Bk.


Human papovavirus BK caused the malignant transformation in vitro of brain cells prepared from newborn hamsters. The transformed cells produced BK virus T antigen and grew as tumors after sc inoculation ito hamsters that developed antibodies to BK virus T antigen. The histopathology of the tumors revealed an undifferentiated glioma. 


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