Abstract:
:1. Human medulloblastoma (ONS-76), a central nervous system (CNS)-derived undifferentiated cell line, was found to possess glial characteristics as defined by responses in the interferon (IFN) system; ONS-76 cells produced as much IFN-beta as human fibroblast and glioma cells by viral infection and poly(I):poly(C) induction. 2. Major histocompatibility complex (MHC) class I antigens were also induced under IFN-beta stimulation. ONS-76 cells expressed neurofilament protein, as shown by Northern blot analysis, and morphological differentiation was induced by dibutyryl cyclic AMP (dcAMP). 3. Expression of IFN-beta and MHC class I antigens was suppressed in ONS-76 cells during the dcAMP-induced differentiation. 4. These results showed that ONS-76 cells possessed a glial property in IFN system responses and a neuronal property in cytoskeleton protein, suggesting that the precursors of medulloblastoma may be characterized as bipotent neuronal and glial progenitors in CNS.
journal_name
Cell Mol Neurobioljournal_title
Cellular and molecular neurobiologyauthors
Park KC,Shimizu K,Hayakawa Tdoi
10.1023/a:1026327309345subject
Has Abstractpub_date
1998-10-01 00:00:00pages
497-507issue
5eissn
0272-4340issn
1573-6830journal_volume
18pub_type
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