TY - JOUR
T1 - Studies on the cytopathic effects of Newcastle disease virus the cytopathogenicity of strain Herts 33 in five cell types
AU - Alexander, D. J.
AU - Hewlett, G.
AU - Reeve, P.
AU - Poste, G.
PY - 1973
Y1 - 1973
N2 - The cytopathogenicity and production of Newcastle disease virus (NDV) strain Herts cultivated in chick embryo (CE), baby hamster kidney (BHK 21), HEp 2, MDBK and L929 cells was investigated. Infection at high multiplicities (1000 p.f.u./cell) induced cell fusion in cultures of all cell types within 3 hr after infection. Infection at low multiplicities (10 to 20 p.f.u./cell) produced extensive cell fusion in CE, BHK 21, HEp 2 and L929 cultures within 24 hr, but MDBK cells failed to fuse. The latter cells failed to show high levels of virus hemagglutinin at the cell surface or accumulation of virus products, but infective virus was released to significantly higher titers than from the cell types which fused. However, infected MDBK showed similar levels of virus induced cell damage to the plasma membrane, as measured by the release of lactate dehydrogenase, to HEp 2 and L929 cells which were susceptible to fusion. The morphology of the c.p.e. produced by strain Herts in the different cell types is described. The relationship of virus accumulation and virus release to the process of cell fusion is discussed.
AB - The cytopathogenicity and production of Newcastle disease virus (NDV) strain Herts cultivated in chick embryo (CE), baby hamster kidney (BHK 21), HEp 2, MDBK and L929 cells was investigated. Infection at high multiplicities (1000 p.f.u./cell) induced cell fusion in cultures of all cell types within 3 hr after infection. Infection at low multiplicities (10 to 20 p.f.u./cell) produced extensive cell fusion in CE, BHK 21, HEp 2 and L929 cultures within 24 hr, but MDBK cells failed to fuse. The latter cells failed to show high levels of virus hemagglutinin at the cell surface or accumulation of virus products, but infective virus was released to significantly higher titers than from the cell types which fused. However, infected MDBK showed similar levels of virus induced cell damage to the plasma membrane, as measured by the release of lactate dehydrogenase, to HEp 2 and L929 cells which were susceptible to fusion. The morphology of the c.p.e. produced by strain Herts in the different cell types is described. The relationship of virus accumulation and virus release to the process of cell fusion is discussed.
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U2 - 10.1099/0022-1317-21-2-323
DO - 10.1099/0022-1317-21-2-323
M3 - Article
C2 - 4797022
AN - SCOPUS:0015818521
SN - 0022-1317
VL - 21
SP - 323
EP - 337
JO - Journal of General Virology
JF - Journal of General Virology
IS - 2
ER -