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Characterization of Canine Distemper Viruses Adapted to Human Neural Cells
Author(s) -
Morikawa Yuko,
Yoshikawa Yasuhiro,
Yamanouchi Kazuya
Publication year - 1988
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/j.1348-0421.1988.tb01485.x
Subject(s) - biology , virus , virology , canine distemper , rna , oligodendroglioma , lyssavirus , rabies virus , viral envelope , microbiology and biotechnology , myxoma virus , rhabdoviridae , gene , genetics , glioma , astrocytoma
The biochemical characteristics of canine distemper virus (CDV) adapted to three human neural cells (glioblastoma, oligodendroglioma, and neuroblastoma cells) were compared with those of the unadapted original virus. The specific gravity of the virions and nucleocapsids of the original and the three adapted viruses were not different. The molecular weights of genomic RNA and messenger RNAs encoding H, F, P, and NP proteins of the adapted viruses as estimated by Northern blot hybridization were similar to those of the original virus. By T 1 ‐resistant oligonucleotide analysis of the genomic RNA, the glioblastoma‐ and the neuroblastoma‐adapted viruses gave two more spots than the original virus; the oligodendroglioma‐adapted virus had a pattern identical to that of the original virus. By two‐dimensional gel electrophoresis of virion proteins, we found a difference in the isoelectric point of the viral envelope proteins H and F between the original and the adapted viruses. These results suggest that viral genomic changes occurred during adaptation, resulting in the alteration of viral envelope proteins.